CA1145441A - Method for transmitting airport weather information - Google Patents
Method for transmitting airport weather informationInfo
- Publication number
- CA1145441A CA1145441A CA000351375A CA351375A CA1145441A CA 1145441 A CA1145441 A CA 1145441A CA 000351375 A CA000351375 A CA 000351375A CA 351375 A CA351375 A CA 351375A CA 1145441 A CA1145441 A CA 1145441A
- Authority
- CA
- Canada
- Prior art keywords
- weather information
- real
- signal
- signals
- time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/002—Telephonic communication systems specially adapted for combination with other electrical systems with telemetering systems
- H04M11/005—Telephonic communication systems specially adapted for combination with other electrical systems with telemetering systems using recorded signals, e.g. speech
Abstract
TITLE
METHOD FOR TRANSMITTING AIRPORT WEATHER INFORMATION
ABSTRACT
There is disclosed a method for providing a real-time weather and other information about an airport to an aircraft. The method comprises the steps of generating a signal representing instantaneous weather information, determining a real-time weather information value from the instantaneous weather in-formation signal over a predetermined time interval, generating an address signal representing the real-time weather information value, storing a plurality of signals representing real-time weather information messages, generating the one of the message signals corresponding to the real-time weather information value in response to the address signal, and transmitting the message signal to a receiver on the aircraft.
CROSS-REFERENCE TO RELATED APPLICATION
A system for providing real-time weather and other pertinent information about an airport to an aircraft in accordance with the method of the present invention is disclosed in U.S. Patent Serial No. 4,163,216 filed August 29, 1977 and issued July 31st 1979.
METHOD FOR TRANSMITTING AIRPORT WEATHER INFORMATION
ABSTRACT
There is disclosed a method for providing a real-time weather and other information about an airport to an aircraft. The method comprises the steps of generating a signal representing instantaneous weather information, determining a real-time weather information value from the instantaneous weather in-formation signal over a predetermined time interval, generating an address signal representing the real-time weather information value, storing a plurality of signals representing real-time weather information messages, generating the one of the message signals corresponding to the real-time weather information value in response to the address signal, and transmitting the message signal to a receiver on the aircraft.
CROSS-REFERENCE TO RELATED APPLICATION
A system for providing real-time weather and other pertinent information about an airport to an aircraft in accordance with the method of the present invention is disclosed in U.S. Patent Serial No. 4,163,216 filed August 29, 1977 and issued July 31st 1979.
Description
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TITLE
METHOD FOR TRANSMITTING AIRPORT WEATHER INFORMATION
ABSTRACT
There is disclosed a method for providing a reai-time weather and other information about an airport to an aircraft. The method comprises the steps of generating a signal representing instantaneous weather information, determining a real-time weather information value from the instantaneous weather in-formation signal over a predetermined time interval, generating an address signal representing the real-time weather information value, storing a plurality of signals representing real-time weather information messages, generating the one of the message ~-signals corresponding to the real-time weather information value in response to the address signal, and transmitting the message signal to a recelver on the aircraft.
CROSS-REFERENCE TO RELATED APPLICATION
A system for providing real-time wea~her and other pertinent `~; information about an~airport to an aircraft in accordance with the method of the present invention is disclosed in U.S. Patent 20 Serial No. 4,163,216 filed August 29, 1377~and issued July 31st ; 1979.
BACKGROUND OF THE INVEN~ION
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1. Field of The Invention This invention relates in general to airport weather informa-tion systems and in particular to a method for transmitting real-time weather information from a ground station to an airplane.
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TITLE
METHOD FOR TRANSMITTING AIRPORT WEATHER INFORMATION
ABSTRACT
There is disclosed a method for providing a reai-time weather and other information about an airport to an aircraft. The method comprises the steps of generating a signal representing instantaneous weather information, determining a real-time weather information value from the instantaneous weather in-formation signal over a predetermined time interval, generating an address signal representing the real-time weather information value, storing a plurality of signals representing real-time weather information messages, generating the one of the message ~-signals corresponding to the real-time weather information value in response to the address signal, and transmitting the message signal to a recelver on the aircraft.
CROSS-REFERENCE TO RELATED APPLICATION
A system for providing real-time wea~her and other pertinent `~; information about an~airport to an aircraft in accordance with the method of the present invention is disclosed in U.S. Patent 20 Serial No. 4,163,216 filed August 29, 1377~and issued July 31st ; 1979.
BACKGROUND OF THE INVEN~ION
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1. Field of The Invention This invention relates in general to airport weather informa-tion systems and in particular to a method for transmitting real-time weather information from a ground station to an airplane.
2. Description of The Prior Art One of the problems associated with either the landing at or the taking off from an~airport which is not manned, is the lack of pertinent and up-to-date information on-:the conditions at the airport. Such information includes real-time weather ~4SB~4~ . ~
information and other infonmation which can be exclu~lve to particular airports, When an aircra~t approache~ an alrport ~or à lanalng, .
the p~lot ~ust ~now hot~ the w~nd d~rection and ~he wind .
S ~peed i he 1~ to land sa~ely. ~ th~ alrpost ~ uncontrolled, the pilot mu~t flr~t fly over the airport and o~erv~ th~ .
w~ndsock to make a iud~ment a~ to the pre~ent wind dixection, However, thl~ i~ very wa~teful as it often taXes up to ten mlnutes of extra fl~ing time to perform thl~ m~neu~er. Also, thi~ maneuver can be quite dangerous in the event o a low overca~t.
~n the landing o~ a ~et ~ircraft, the ~re~ent out~lde temperature 3hould also b~ a~allable to the pllot, A ~et aircra~t takes of~ and land~ by lts indicatea air ~peed which is deter~ined by the weight o the aircr~gt ~nd the outsi~e temperature. If the pilot 1~ not inormea o~ the present out~i~e temperature, he must e.~timate thi~ temperature in order to detsrmlna the ~ndlcated air ~peed o~ the aircraft.
.~ r.~iscalculation o~ the lndlcated alr ~peed oan r~sul~ ln a : ~
~at aircrat us~ng a larger portlon o~ the~ runway than i5 ~ ~;
neces~ary. Thu~ the plLot of a:~e~ ai~craft ~g informed ` :~
of the pr~ent outside ten~perat~rQ, ho can deter~lne the correct indicated air speed for landlng and consequentl~ use le~s runway and fuel, One appara~u~ f~r proYiding an alr~r~t with weather in~ormation has beQn ~isc~o~e~ in U. S. PAtent No. 3,~49,39~
issued to ~uber et al on Apr~l 6, 1976 and entitled "~utomatic :
Dlrection Finding Equipmen~ For ~lrplanes". A waather ~
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~:L4544i -transducer i~ connected to a recording sy~tem such thnt, when the pilot generate~ the app~opxlate control ~lgnal to th~
system, the weather info~lation 1~ tran~m$tted to the pilot in speech form, ~o~evex, thi~ ap~)arAtus i~ not capable of analy~in~ ~he ~iqnals xo~ the weather transducer t~ ~rovide the pilot w~h ln~orma~ion such a'3 the variat~on in ~ind direction or the speed o~ the wind ~U8t8 .
SU~r~A~Y OF THE INVENTION
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~he pre~ent lnventlon concern~ a method or p~o~lding real-t~me weather lnformation $n speech orm to ~he pilo~ of an aircraft. The method can also provide the pllot with ot~er inormation whlch can ~e con~idered pertinent to either the landing or the taking of~ of the aircra~t, The radio telephone equlpment normally found on board the aircraft can LS be used to actlvate an information transmi~ter or the trans-mltter can be cont~nuously or manually actlvnted.
~ ~ sy~tem ~or implementlng th~ ~ethod lnclu~3 a micro-: computer which 18 used to read and analyze data received from a ~roup o~ weather trans~ucers. The:mlcroo~mputer analyzes :
data recelved ~rom a wind dlrectlon tran~ducer over a la~t .
predetermined time lnterval t~ deter~lne a most prominent wind dlreation and a mo~t prominent wind varlatlon in wind direction. Data rece~ved from a wlnA spee~ transducer is analyzed ~n A slmllar manner to determine ~ most promlnent ~S wlnd ~peed and a most prominent w~nd ~t. Th~ wlnd lnformatiOn 1~ then urther cl~sified int~ such cate~orlea as "calm~ or ht and variableU. Oth~r weather inform~ti~n whloh can be transmitted to the alrcra~t Include~ barometrla pre~ure and t~m~erature.
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When the system tran~mitter 18 activatea, the microcomputer ~
indiv~dually address~ locat~on~ of a ~olce stora~e mcans to .
~enerat~ a me~sage which i~ then tran~mltted to th~ ai~craft. .
It i~ an ob~ect of ~he present invention to produ~e a ; method o~ obta~ning real-time ~ather information to ~acllltate the landing ~nd take o~ of an aircra~S ~t an uncontrolled .
airport, ~`
It ~ 8 another ob~ect of th~ pr~ ent invent~on to ~roduce a method for provld$ng real-time weather info~latlon to the L0 pilot of the aircraft.
It ls a further ob~ect o~ ths pre~ent invention to pro~luce a method to analy~e and classify the xeal-tlme wind ~nformat$on and thereby prov$de present wind condition in~or~ation to the p$10t o~ an a~rcra~t.
L5 ~ The abov~ ob~ect~, a~ well as other~ may typi~ally he achieved by a method whereln A slgnal repre~enting lnstantaneou~
weather in~ormation 1~ genérated, a real-tlme ~eather :
informatton value is detenmtned from the ln~antaneou~
signal over a pr~determ~ned t~ne ~nterval, an addres~ slgnal .
repre~enting ~he real-ttme wea her lnformatlon value is generated, a plurality of slgnal~ rapr~senting real-time weather in~ormatlon message~ are stored, the on~ of the messaga signals xepre~nting correspondin~ to the rsal-ti~e . weather ~nformatlon value is ~enera~ed ln re~pon~ to the addres~ signal, ~nd the one mea~age ~lgnAl ~9 transmitted.
BR:[EP DESCRIPTION OF TRE ~RAWING
The ob~eats ana advàntages of the 1nYention w111 hecome r~adily apparent to one skllled in the art ~rom readtng the . , : , .
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. . '.' ¦ followln det~lled defiarlption of tho prefurrod em~dlment - ¦ of the invention when considexed in the ll~ht o~ t~acco~p~nying .
,~ I ~rawin~s. : ~ ~
. . ¦ Fig. 1 1B a block ~a~ram oi' an alrcra~t infor~ation .
i ¦ tran~mitt1ng system for lmplement:ing the present invention~ .
¦ and ~ig. 2 $3 a flow diagrAm of a ~ethod ~qr transm$tt~ng real-~ime weather informatlon accor~in~ to the pre~ent I ~nYent~on.
L0 l D~ SCRIPTION 5aC~ Jo~3 Referring to Fi~. 1, thexo is 3ho ~ ~n alrport infor~at~o~
tran~mitting ~ystem accoxding to the present i~v~ntion which des~aned to prov~d~ real-t~me ~n~ormatlon to a pilot of . an aircra~t. The sy~tem can provide thè pllot wlth weather and other in~ormatlon whloh may hs con~ldered pert~nent ~o .
`eit~er land~ng or take o~f. The sy~t~cm can b~ actlvated by : .
the radio telephone equipment which i~ typlcally found on boara most alrcraft. When the ~ystffm 1~ ~ctiv~ted, it ~:
: tran~mit~ the lnformation to the radio talephone which reproduces 20 ~ it ~n speech form. ~
. Th~ ~y~tem can inolude a group of four tran3ducer~ which - are typlcally lnstalled at most airport~ and which ~enerate eleotrical ~ignal3 corre~ponding ~o in~tantaneou~ weather information, ~ ~arometer tran~ducer 11 ganerate~ a si~nal on ~25 a llne 12 with ~ magnltude propo~tlonal to thQ instantaneous :~ a.tmo8pherie prels~uro. ~ wlnd dlr~ctlon transducer 13 ~enerates :~
a qi~nal on a l;ine 1~ wlth a ma~nltude~pr~portlon~l to t~a ~:
inseantaneou~ d;irectlon o~ the wind. A wind ~paed tran~ducer :
5 qenex~te~ a ,s~qn~l on D~llAa IC wlth ~ n~tuda propor~ional : , 5 ~ ~ ~'' `.~
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to the lnstantaneous speed o~ the wind. A thermometer trannducer ¦ 17 ~enerates a si~nal on a line 18 with a ma~nitu~e proportlonal : ¦ to the instantaneous outside temperature.
The four line~ 12, 14, 16 and 18 are connected to ~
¦ multiplexer 19. A hlock 20 ~ 8 also connected to the multiplexer ¦ 19 by a da~hed line. The ~lock 20 is representative of other transducer~ which generate slgnals corre~ponding to other in-I formation ~uch as dew polnt, ceiling height, rainPall, etc. The ¦ multiplexer 19 is used to control ~he transfer o~ the variou3 ¦ weather lnformation si~nals in serial multiplexed ~orm to ananalog to digital ~A4D) converter 21 on an output line 22. The A4D converter 21 converts the analog ~l~nals received on khe llne ¦ 22 in~o digital ~orm and ~enerates the digitized si~nals on a I line 23 connected to ~ microcomputer 24.
1 The ~icrocomputer 24 control~ the input of thP data sl~nals on the line 2~ ~y generatin~ the a~propriate addrQss and control si~nals on lines 25 and 26 connected to the multlplexer 19 and the A/D converter 21 re~pectively. For example, i~ the micro-l computer 24 re~ulres the barometer readin~, it ~enarate~ the ¦ appropriat~ barometer address and control ~ignal~ on the line 25to the multiplexer 19. The multiplexer 1~ responds by selecting ¦ the signal on the line 12 to appear on the line 22 a~ an ~nput to the A4D converter 21, The microcomputer 24 also senerate~ a control s~gnal on the l~ne 26 to the A/D converter 21 which cause-~ the convertcr to apply the digitized barometer sisnal to ths line 23. The dl~ltized harometer s~nal i8 then r~ad by the microcomputer.
The microcomputer 24 include~ Q scction o~ re~d-only-me~ory ~ROM) whlch i9 utillzed to store the ln~t~uctions ~or the varlou~
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program~. The microcomputer 24 i9 connected to a memory 27 by a bldirectional lin~ 28 repres~nting data ~ransfcr and addre~s lines. ~he memory 27 includes a section of ran~om-acc~s~-memory . (RP~I) which is used for the temporary ~toraqe of data durin~ the execution of an lnstruction sequence, The line 28 i8 utilized to addr~ss and either write into or read from a location in the memory.
A ~o~ce storaqe unit (VSU) 29 r~ceives address and control signals from the microcomputer 24 on a line 31. The VSU ~9 compriRes a plural~ty of storage locations each of which can be : . programmed to ~tore dig~tal data repre~enting di~ferent words and phrases. When the microco~puter addreR~cs a particular location in the VSU ~9, the VS~ tran~forms the digital information 3tored at that location into an analog ~ignal whlch represent~ a par~icu- .
lS lar portion of the deslred ~peech mes~agQ. Thl~ analog si~nal 1~ I
generatad on a lina 32 as an input to an audio a~plifier 33 which : in turn ~enerates an amplified slgnal on a line 34 to a tran~-mitt~r 35, The transmitter 35 modulate3 a carrier signal with ~hi~ ampl$fled audio ~lgn~l. The carrier signal frequency must : 20 he known by the pilot ~o that he can tune his radio telephone equlpment to th~ frequency a~ he approache~ the airport and : -activate ths tran~mitter 35 as will be di~cu~sed. The modulated carrier signal i~ applied to a tran~mltting antenna 3G~ The output line 34 o~ tha audio amplifler 33 can al~o be conne~ted to a loud~peaker 37 or a record$ng devlce 38 as ~how.n ~y ~ pair of dashed line~. T!he loud~peaker 37 c~n be utllized by a control ~ .
. tower operator t~D check the operation of the ~y~tem and to confirm the lno.nmation which is ~o be tran~mitted to the ~ir-craft. The record~ng device 38 can ~e used to record for future ~4S441 reference all messages transmitted to the aircraft. For example, if an aircraft which has requested the real-time weather information is involved in an accident while landing, the recording device 38 would record the weather conditions at the time of the accident. Thus, the recorded weather con-ditions could then later be checked to determine whether or not the accident might be attributed to poor weather con-ditions.
The VSU 29 is initially programmed by speaking into a microphone 39 which is connected to the input of an audio amplifier 41. The amplifier 41 amplifies the signal received by the microphone and generates the amplified signal on a line 42 as an input to the VSU 29. The microcomputer 24 generates a control signal on the line 31 to switch the VSU
to the recording mode, such that the signal received by the VSU on the line 42 will be transformed into digital informa-tion. The microcomputer 24 also generates address signals on the line 31 to designate the location in which the digital ir--formation is to be stored. Although this system utilizes a voice storage unlt which stores the individual speech text portions in digital form, any suitable recording device such as a magnetic disc can be used.
A control logic circuit 43 generates control signals to the microcomputer 24 on a line 44. When it is desired to program the speech information into the VSU 29, a control logic interrupt signal can be generated by closing a switch 45 which is connected between the control logic circuit 43 and a positive power supply (not shown). The control logic cir-cuit 43 generates the control logic interrupt signal to the microcomputer 24 which responds by executing the instruction set which is utilized to program the VSU by generating the ~ll454~1 desired control and address signals on the line 31.
A keyboard 46 is connected to the circuit 43 by a line 47 and is utilized to generate signals representing the address signals to be generated ~y the microcomputer 24 to program the VSU~ For example, if it is desired to store the word "onel' at location one in the VSU, the operator selects location one via the keyboard 46 and then closes the switch 45.
The microcomputer 24 then generates control and address sig-nals on the line 31 to the VSU 29 indicating the location one is to be programmed. The operator speaks the word "one" into the microphone 39. The speech received by the microphone is amplified, converted into digital form, and stored in location one of the VSU 29. All other locations in the VSU can be pro-grammed in a similar manner. It should be noted that the storage locations of the VSU can be individually preset to store speech text portions of various durations. For example, location one can be preset to store a speech text portion hav-ing a duration of one second while location two can be preset to store a speech text portion with a three second duration.
A receiver 48 is tuned to the same frequency as the :
transmitter 35 and is connected to an antenna 49 to receive activation signals transmitted by the aircraEt radio telephone equipment. The recelver 48 generates control signals to the control logic circuit 43 on a line 51 in response to the activation signals received on the antenna 49. The control logic circuit 43 then generates a radio receiver interrupt signal on the line 44 to the~microcomputer 24 if it receives a predetermined number of signals on the line 51 within a pre-determined time interval. This radio receiver interrupt signal will direct the microcomputer to execute an instruction se-quence which transmits the weather information to the aircraft.
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Thus, when an aircraft approaches an airport and the pilot desires to obtain the real-time weather information, the pilot can generate the appropriate number of signals to activate the transmitter 35 typically by depressing and releasing the transmit/receive switch of his radio telephone equipment. The control logic circuit 43 can be set to generate the radio receiver interrupt signal if, for example, the pilot depresses and releases the transmit/receive switch at leas-t five times within a period of three seconds. The system can also transmit the weather informatiom on a continuous basis.
In addition to providing the pilot with the weather information in speech form, the microcomputer can be connected to a digital communication interface 52 by a line 53 to trans-mit digital information on a line 54 to a variety of devices such as a teletype and~or a digital transmitter. However, if the aircraft is to receive the transmitted digital information, it must be equipped with a suitable receiver and a set of digital readout indicators. Also, the microcomputer can be connected to activate a relay (not shown) such that, when an ~ 20 aircraft requests the weather information, the correct runway ; lights are turned on in accordance with the present wind direction.
The elements represented in Fig. 1 are commercially available. For example, the barometer transducer 11 can be a Model 250 barometer manufactured by Serta Systems, Inc. of Natick, Massachusetts. The wind direction and speed trans- -ducers 13 and 15 can be a F-420C-2 wind speed and direction transmitter manufactured by Electric Speed Indicator Company of Cleveland, Ohio. The thermometer transducer 17 can be an LX5600AH temperature sensor manufactured by National Semi-conductor of Santa Clara, California. The multiplexer 19 and ~` .~
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the A/D converter 21 can be a DAS1128 data acquisition module manufactured by Analog Devices, Inc. of Norwood, Massachusetts.
The microcomputer 24 and the memory 27 can be a model TMS
990/100 M-l computer card manu~actured by Texas Instruments, Inc. of Houston, Texas. The voice storage unit 29 can ~e a VSU650 voice box manufactured by Comex Systems, Inc. of Hudson, New Hampshire. The amplifier 41 can be a RC4136DB operational amplifier manufactured by Raytheon Company of Lexington, Massachusetts. The amplifier 33 can be an I~M380N audio ampli-fier manufactured by National Semiconductor. The keyboard 46 can be a standard teletype such as an LA36 DECwriter manufac-tured by the Digital Equipment Corporation of Maynard, Massachusetts. The transmitter 35 and the receiver 48 can be a model KU-193 transceiver manufactured by King Radio Corpor-ation of Olathe, Kansas.
The control logic 43 can include an NAND flip flop hav-ing a set input connected to the output of the receiver 48 a~d a reset input connected to an output from the microcomputer 24.
Each time the pilot depresses the microphone button, the carrier signal from the receiver is at a low level which sets the flip flop to generate a radio receiver interrupt signal to the microcomputer. The microcomputer resets the flip flop and counts the number of such radio receiver interrupt signals received during a predetermined period of time to determine whether or not to activate the transmitter. This circuit is not utilized when the transmitter is to operate continuously. ~ ~ ;
Having described the basic circuitry which is used to implement the present invention, the operation of the micro-' ~ ~
~45441 processor~based ~ystem will now be di~cu~sed, Ther~ are tXree baslc mode~ o~ operation of the ~y~tem: the acquisltion ~ode, the playback mode and the record~ng mod~. The gygte~ 1~ no~mally ln the acqu~s~tion mode durin~ wh1cX time the ~c~o~om~utex is S reading and analyzing data rom the weather tx~n~ducers. I~ thQ
approprlate sl~nals are received ~rom an a~rc~at, the ~yst~m will automatically switch to the playback mod~ wherein real-t~me weather information 1~ transmittea to the aircraf~ aving tran~mitted the lnformatlon~ th2 ~y~tem will automatically return to the acquisition mode, The system enterY th~ third mode of operatlon, the recordlnq mode~ when the ~witch 45 i~ ~anually actuated indicnting ~hat it is desired to proqram the ~o~c~
storage unit. If the sy~te~ ~8 cont~nuou~ly trnn~mittin~, the ac~ulsition and pl~yback mode~ can be multiplexed.
l~ ~ur~ng the acquisitlQn ~odc, the mlcroc~mputex 24 generates : the appropriat¢ address and control ~ignals on the lines 25 and 26 to ~e~uen~ially rosd tXs data from the tran ucers ll~ 13, 15 and l?. Data would also bc read from the transducer~ repre~entea by block 20. ~ll of the aata can be read~ for example, every thirty ~econds. Each tlmo data i3 read from any o the tran~- :
ducer9 ~ lt i~ compared with the corr~pond~ ng preY~ously read ~` values. The correspondlng readlng~ ~hould not yary sl~nificantly ~ ~ ~etween successlve sampl~ng periods. Thu~, l$ one of the~e :~ xeadln~ differ~ from tho last correspondin~ readin~ by more than as a predetermlned amount, thero has~e~n ~ system malfunctlon ~nd ; the mlcrocomputer take3 the approprlate ~ction to lndlcate the . malfunct$on such as tran~mitting a me~ago that a malfunction hAs oqcurred and indlcatlng th~ la~t rRadlng:before the ~al~unction.
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IL~S441 }lowever, i~ th~ eorre~pondln~ reading~ are wlthin th~ pre-deter~ined llml~, the ~y~tem i~ i.unct~oning:properly and t~e valu~s are st~r~d in the memory gc~ that they can be outputted i~
the system switc~e~ to tl-e playbaak mode, The data whlch is o~tained ~rom the wind dlrect~on and the wind speed tran~ducers are analyzed to prov~de the p~lot with wind condition information. I~en data haæ been read ~rom the w~nd directlon tran3ducer, the microcomputer execute8 an inAtruc-tion ~et whlch determine~ the most prominent directlon reading:
that ha~ occurred durlng a preaeterminèd tlme interval which can ~e, for exanple, the last flva minute~, The micro~omputer al~o ~eterm~ne~ the mo~t prominent variation during thi~ time interval The most promlnent directlon rèadin~ can be either the reading that ha~ be~n the mo~t frequent or it can bc the ~tati~tical ~vera~e o~ all dlrection read~n~s taken wlthln the last pre-determined tlme lnterval. The mo~t prominent variation can ~e the readin~ other than th~ wind ~irectlon readlng that ha~
occurred most ~requently. The most prominent direction and . variatlon readlng~ are then ~tored in the memory ~or future compari~on~ as wlll be ~isaussed. ~
The readings obtained from the wlnd speed tran~clucer are analyzed ln a ~anner similar to the wind direction reading~.
: Afte~ data ha~ been read from the wind ~pesd transducer 15, the microcomputer determines the moæt promlnent speed readin~ and the mo~t prom~nent gu~t readlng~that hAs occurred wlthln the las~
predetermine~ time interval. The promlnent ~peed and gu8t . read~ngs are calculAted ln ~ manner ~lm~lar to th~ previousLy mentioned directlon and varlatlon readlng re~pectlvely. T~e m~st :
prominent ~peed snd gu~t reading nre ~hen tored ln th~ memor~. :
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The microcomputer then functions to classif~ the wind information. If the wind speed and wind variation are less than a pair of predetermined reference values, for example, five knots and ten degrees respectively, then the present wind condition is classified as l'calm". However, if the wind speed is less than its predeterm:ined values, the present wind condition is classified as "light" and "variable".
If the difference between the wind direction and the wind variation is lèss than a predetermined value, for example, ten degrees, then the microcomputer will not provide the aircraft with the information concerning the wind variation. Furthermore, if the difference between the wind speed and the wind gust is less than a predetermined value, for example, five knots,then the microcomputer will not provide the aircarft with the wind gust information. Thus, if the wind variation and gusts do not vary significantly from the wind direction and speed respectively, it is not necessary to , provide the pilot of the aircraft with this information.
After readLng the barometer and thermometer transducers and determining the present wind conditions, the microcomputer is ready to repeat the above sequence of operations. The microcomputer will continue to function in the acquisition ~; mode until it is interrupted to switch to either the playbac~
or the recording modes.
When it is desired to enter the recording mode to pro~
gram the VSU 29, the switch 45 is closed to generate a control logic interrupt signal to~the microcomputer 24. The micro-computer will then begin to execute the proper instructions.
As previously mentioned, ~ -14-~''~`''' ~1 ~45441 the ~e~board 46 enahles ~he ~rogrammer to select th~ addre~s location of the YSU a~ whic~ a ~ord or a group of ~Jords are ~o b~
stored. Ty~ically, th~ VSU 29 can be pro~rammed a~ follot~ .
~.ddress Word .
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information and other infonmation which can be exclu~lve to particular airports, When an aircra~t approache~ an alrport ~or à lanalng, .
the p~lot ~ust ~now hot~ the w~nd d~rection and ~he wind .
S ~peed i he 1~ to land sa~ely. ~ th~ alrpost ~ uncontrolled, the pilot mu~t flr~t fly over the airport and o~erv~ th~ .
w~ndsock to make a iud~ment a~ to the pre~ent wind dixection, However, thl~ i~ very wa~teful as it often taXes up to ten mlnutes of extra fl~ing time to perform thl~ m~neu~er. Also, thi~ maneuver can be quite dangerous in the event o a low overca~t.
~n the landing o~ a ~et ~ircraft, the ~re~ent out~lde temperature 3hould also b~ a~allable to the pllot, A ~et aircra~t takes of~ and land~ by lts indicatea air ~peed which is deter~ined by the weight o the aircr~gt ~nd the outsi~e temperature. If the pilot 1~ not inormea o~ the present out~i~e temperature, he must e.~timate thi~ temperature in order to detsrmlna the ~ndlcated air ~peed o~ the aircraft.
.~ r.~iscalculation o~ the lndlcated alr ~peed oan r~sul~ ln a : ~
~at aircrat us~ng a larger portlon o~ the~ runway than i5 ~ ~;
neces~ary. Thu~ the plLot of a:~e~ ai~craft ~g informed ` :~
of the pr~ent outside ten~perat~rQ, ho can deter~lne the correct indicated air speed for landlng and consequentl~ use le~s runway and fuel, One appara~u~ f~r proYiding an alr~r~t with weather in~ormation has beQn ~isc~o~e~ in U. S. PAtent No. 3,~49,39~
issued to ~uber et al on Apr~l 6, 1976 and entitled "~utomatic :
Dlrection Finding Equipmen~ For ~lrplanes". A waather ~
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~:L4544i -transducer i~ connected to a recording sy~tem such thnt, when the pilot generate~ the app~opxlate control ~lgnal to th~
system, the weather info~lation 1~ tran~m$tted to the pilot in speech form, ~o~evex, thi~ ap~)arAtus i~ not capable of analy~in~ ~he ~iqnals xo~ the weather transducer t~ ~rovide the pilot w~h ln~orma~ion such a'3 the variat~on in ~ind direction or the speed o~ the wind ~U8t8 .
SU~r~A~Y OF THE INVENTION
_ . .
~he pre~ent lnventlon concern~ a method or p~o~lding real-t~me weather lnformation $n speech orm to ~he pilo~ of an aircraft. The method can also provide the pllot with ot~er inormation whlch can ~e con~idered pertinent to either the landing or the taking of~ of the aircra~t, The radio telephone equlpment normally found on board the aircraft can LS be used to actlvate an information transmi~ter or the trans-mltter can be cont~nuously or manually actlvnted.
~ ~ sy~tem ~or implementlng th~ ~ethod lnclu~3 a micro-: computer which 18 used to read and analyze data received from a ~roup o~ weather trans~ucers. The:mlcroo~mputer analyzes :
data recelved ~rom a wind dlrectlon tran~ducer over a la~t .
predetermined time lnterval t~ deter~lne a most prominent wind dlreation and a mo~t prominent wind varlatlon in wind direction. Data rece~ved from a wlnA spee~ transducer is analyzed ~n A slmllar manner to determine ~ most promlnent ~S wlnd ~peed and a most prominent w~nd ~t. Th~ wlnd lnformatiOn 1~ then urther cl~sified int~ such cate~orlea as "calm~ or ht and variableU. Oth~r weather inform~ti~n whloh can be transmitted to the alrcra~t Include~ barometrla pre~ure and t~m~erature.
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When the system tran~mitter 18 activatea, the microcomputer ~
indiv~dually address~ locat~on~ of a ~olce stora~e mcans to .
~enerat~ a me~sage which i~ then tran~mltted to th~ ai~craft. .
It i~ an ob~ect of ~he present invention to produ~e a ; method o~ obta~ning real-time ~ather information to ~acllltate the landing ~nd take o~ of an aircra~S ~t an uncontrolled .
airport, ~`
It ~ 8 another ob~ect of th~ pr~ ent invent~on to ~roduce a method for provld$ng real-time weather info~latlon to the L0 pilot of the aircraft.
It ls a further ob~ect o~ ths pre~ent invention to pro~luce a method to analy~e and classify the xeal-tlme wind ~nformat$on and thereby prov$de present wind condition in~or~ation to the p$10t o~ an a~rcra~t.
L5 ~ The abov~ ob~ect~, a~ well as other~ may typi~ally he achieved by a method whereln A slgnal repre~enting lnstantaneou~
weather in~ormation 1~ genérated, a real-tlme ~eather :
informatton value is detenmtned from the ln~antaneou~
signal over a pr~determ~ned t~ne ~nterval, an addres~ slgnal .
repre~enting ~he real-ttme wea her lnformatlon value is generated, a plurality of slgnal~ rapr~senting real-time weather in~ormatlon message~ are stored, the on~ of the messaga signals xepre~nting correspondin~ to the rsal-ti~e . weather ~nformatlon value is ~enera~ed ln re~pon~ to the addres~ signal, ~nd the one mea~age ~lgnAl ~9 transmitted.
BR:[EP DESCRIPTION OF TRE ~RAWING
The ob~eats ana advàntages of the 1nYention w111 hecome r~adily apparent to one skllled in the art ~rom readtng the . , : , .
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. . '.' ¦ followln det~lled defiarlption of tho prefurrod em~dlment - ¦ of the invention when considexed in the ll~ht o~ t~acco~p~nying .
,~ I ~rawin~s. : ~ ~
. . ¦ Fig. 1 1B a block ~a~ram oi' an alrcra~t infor~ation .
i ¦ tran~mitt1ng system for lmplement:ing the present invention~ .
¦ and ~ig. 2 $3 a flow diagrAm of a ~ethod ~qr transm$tt~ng real-~ime weather informatlon accor~in~ to the pre~ent I ~nYent~on.
L0 l D~ SCRIPTION 5aC~ Jo~3 Referring to Fi~. 1, thexo is 3ho ~ ~n alrport infor~at~o~
tran~mitting ~ystem accoxding to the present i~v~ntion which des~aned to prov~d~ real-t~me ~n~ormatlon to a pilot of . an aircra~t. The sy~tem can provide thè pllot wlth weather and other in~ormatlon whloh may hs con~ldered pert~nent ~o .
`eit~er land~ng or take o~f. The sy~t~cm can b~ actlvated by : .
the radio telephone equipment which i~ typlcally found on boara most alrcraft. When the ~ystffm 1~ ~ctiv~ted, it ~:
: tran~mit~ the lnformation to the radio talephone which reproduces 20 ~ it ~n speech form. ~
. Th~ ~y~tem can inolude a group of four tran3ducer~ which - are typlcally lnstalled at most airport~ and which ~enerate eleotrical ~ignal3 corre~ponding ~o in~tantaneou~ weather information, ~ ~arometer tran~ducer 11 ganerate~ a si~nal on ~25 a llne 12 with ~ magnltude propo~tlonal to thQ instantaneous :~ a.tmo8pherie prels~uro. ~ wlnd dlr~ctlon transducer 13 ~enerates :~
a qi~nal on a l;ine 1~ wlth a ma~nltude~pr~portlon~l to t~a ~:
inseantaneou~ d;irectlon o~ the wind. A wind ~paed tran~ducer :
5 qenex~te~ a ,s~qn~l on D~llAa IC wlth ~ n~tuda propor~ional : , 5 ~ ~ ~'' `.~
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to the lnstantaneous speed o~ the wind. A thermometer trannducer ¦ 17 ~enerates a si~nal on a line 18 with a ma~nitu~e proportlonal : ¦ to the instantaneous outside temperature.
The four line~ 12, 14, 16 and 18 are connected to ~
¦ multiplexer 19. A hlock 20 ~ 8 also connected to the multiplexer ¦ 19 by a da~hed line. The ~lock 20 is representative of other transducer~ which generate slgnals corre~ponding to other in-I formation ~uch as dew polnt, ceiling height, rainPall, etc. The ¦ multiplexer 19 is used to control ~he transfer o~ the variou3 ¦ weather lnformation si~nals in serial multiplexed ~orm to ananalog to digital ~A4D) converter 21 on an output line 22. The A4D converter 21 converts the analog ~l~nals received on khe llne ¦ 22 in~o digital ~orm and ~enerates the digitized si~nals on a I line 23 connected to ~ microcomputer 24.
1 The ~icrocomputer 24 control~ the input of thP data sl~nals on the line 2~ ~y generatin~ the a~propriate addrQss and control si~nals on lines 25 and 26 connected to the multlplexer 19 and the A/D converter 21 re~pectively. For example, i~ the micro-l computer 24 re~ulres the barometer readin~, it ~enarate~ the ¦ appropriat~ barometer address and control ~ignal~ on the line 25to the multiplexer 19. The multiplexer 1~ responds by selecting ¦ the signal on the line 12 to appear on the line 22 a~ an ~nput to the A4D converter 21, The microcomputer 24 also senerate~ a control s~gnal on the l~ne 26 to the A/D converter 21 which cause-~ the convertcr to apply the digitized barometer sisnal to ths line 23. The dl~ltized harometer s~nal i8 then r~ad by the microcomputer.
The microcomputer 24 include~ Q scction o~ re~d-only-me~ory ~ROM) whlch i9 utillzed to store the ln~t~uctions ~or the varlou~
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program~. The microcomputer 24 i9 connected to a memory 27 by a bldirectional lin~ 28 repres~nting data ~ransfcr and addre~s lines. ~he memory 27 includes a section of ran~om-acc~s~-memory . (RP~I) which is used for the temporary ~toraqe of data durin~ the execution of an lnstruction sequence, The line 28 i8 utilized to addr~ss and either write into or read from a location in the memory.
A ~o~ce storaqe unit (VSU) 29 r~ceives address and control signals from the microcomputer 24 on a line 31. The VSU ~9 compriRes a plural~ty of storage locations each of which can be : . programmed to ~tore dig~tal data repre~enting di~ferent words and phrases. When the microco~puter addreR~cs a particular location in the VSU ~9, the VS~ tran~forms the digital information 3tored at that location into an analog ~ignal whlch represent~ a par~icu- .
lS lar portion of the deslred ~peech mes~agQ. Thl~ analog si~nal 1~ I
generatad on a lina 32 as an input to an audio a~plifier 33 which : in turn ~enerates an amplified slgnal on a line 34 to a tran~-mitt~r 35, The transmitter 35 modulate3 a carrier signal with ~hi~ ampl$fled audio ~lgn~l. The carrier signal frequency must : 20 he known by the pilot ~o that he can tune his radio telephone equlpment to th~ frequency a~ he approache~ the airport and : -activate ths tran~mitter 35 as will be di~cu~sed. The modulated carrier signal i~ applied to a tran~mltting antenna 3G~ The output line 34 o~ tha audio amplifler 33 can al~o be conne~ted to a loud~peaker 37 or a record$ng devlce 38 as ~how.n ~y ~ pair of dashed line~. T!he loud~peaker 37 c~n be utllized by a control ~ .
. tower operator t~D check the operation of the ~y~tem and to confirm the lno.nmation which is ~o be tran~mitted to the ~ir-craft. The record~ng device 38 can ~e used to record for future ~4S441 reference all messages transmitted to the aircraft. For example, if an aircraft which has requested the real-time weather information is involved in an accident while landing, the recording device 38 would record the weather conditions at the time of the accident. Thus, the recorded weather con-ditions could then later be checked to determine whether or not the accident might be attributed to poor weather con-ditions.
The VSU 29 is initially programmed by speaking into a microphone 39 which is connected to the input of an audio amplifier 41. The amplifier 41 amplifies the signal received by the microphone and generates the amplified signal on a line 42 as an input to the VSU 29. The microcomputer 24 generates a control signal on the line 31 to switch the VSU
to the recording mode, such that the signal received by the VSU on the line 42 will be transformed into digital informa-tion. The microcomputer 24 also generates address signals on the line 31 to designate the location in which the digital ir--formation is to be stored. Although this system utilizes a voice storage unlt which stores the individual speech text portions in digital form, any suitable recording device such as a magnetic disc can be used.
A control logic circuit 43 generates control signals to the microcomputer 24 on a line 44. When it is desired to program the speech information into the VSU 29, a control logic interrupt signal can be generated by closing a switch 45 which is connected between the control logic circuit 43 and a positive power supply (not shown). The control logic cir-cuit 43 generates the control logic interrupt signal to the microcomputer 24 which responds by executing the instruction set which is utilized to program the VSU by generating the ~ll454~1 desired control and address signals on the line 31.
A keyboard 46 is connected to the circuit 43 by a line 47 and is utilized to generate signals representing the address signals to be generated ~y the microcomputer 24 to program the VSU~ For example, if it is desired to store the word "onel' at location one in the VSU, the operator selects location one via the keyboard 46 and then closes the switch 45.
The microcomputer 24 then generates control and address sig-nals on the line 31 to the VSU 29 indicating the location one is to be programmed. The operator speaks the word "one" into the microphone 39. The speech received by the microphone is amplified, converted into digital form, and stored in location one of the VSU 29. All other locations in the VSU can be pro-grammed in a similar manner. It should be noted that the storage locations of the VSU can be individually preset to store speech text portions of various durations. For example, location one can be preset to store a speech text portion hav-ing a duration of one second while location two can be preset to store a speech text portion with a three second duration.
A receiver 48 is tuned to the same frequency as the :
transmitter 35 and is connected to an antenna 49 to receive activation signals transmitted by the aircraEt radio telephone equipment. The recelver 48 generates control signals to the control logic circuit 43 on a line 51 in response to the activation signals received on the antenna 49. The control logic circuit 43 then generates a radio receiver interrupt signal on the line 44 to the~microcomputer 24 if it receives a predetermined number of signals on the line 51 within a pre-determined time interval. This radio receiver interrupt signal will direct the microcomputer to execute an instruction se-quence which transmits the weather information to the aircraft.
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Thus, when an aircraft approaches an airport and the pilot desires to obtain the real-time weather information, the pilot can generate the appropriate number of signals to activate the transmitter 35 typically by depressing and releasing the transmit/receive switch of his radio telephone equipment. The control logic circuit 43 can be set to generate the radio receiver interrupt signal if, for example, the pilot depresses and releases the transmit/receive switch at leas-t five times within a period of three seconds. The system can also transmit the weather informatiom on a continuous basis.
In addition to providing the pilot with the weather information in speech form, the microcomputer can be connected to a digital communication interface 52 by a line 53 to trans-mit digital information on a line 54 to a variety of devices such as a teletype and~or a digital transmitter. However, if the aircraft is to receive the transmitted digital information, it must be equipped with a suitable receiver and a set of digital readout indicators. Also, the microcomputer can be connected to activate a relay (not shown) such that, when an ~ 20 aircraft requests the weather information, the correct runway ; lights are turned on in accordance with the present wind direction.
The elements represented in Fig. 1 are commercially available. For example, the barometer transducer 11 can be a Model 250 barometer manufactured by Serta Systems, Inc. of Natick, Massachusetts. The wind direction and speed trans- -ducers 13 and 15 can be a F-420C-2 wind speed and direction transmitter manufactured by Electric Speed Indicator Company of Cleveland, Ohio. The thermometer transducer 17 can be an LX5600AH temperature sensor manufactured by National Semi-conductor of Santa Clara, California. The multiplexer 19 and ~` .~
~;~
the A/D converter 21 can be a DAS1128 data acquisition module manufactured by Analog Devices, Inc. of Norwood, Massachusetts.
The microcomputer 24 and the memory 27 can be a model TMS
990/100 M-l computer card manu~actured by Texas Instruments, Inc. of Houston, Texas. The voice storage unit 29 can ~e a VSU650 voice box manufactured by Comex Systems, Inc. of Hudson, New Hampshire. The amplifier 41 can be a RC4136DB operational amplifier manufactured by Raytheon Company of Lexington, Massachusetts. The amplifier 33 can be an I~M380N audio ampli-fier manufactured by National Semiconductor. The keyboard 46 can be a standard teletype such as an LA36 DECwriter manufac-tured by the Digital Equipment Corporation of Maynard, Massachusetts. The transmitter 35 and the receiver 48 can be a model KU-193 transceiver manufactured by King Radio Corpor-ation of Olathe, Kansas.
The control logic 43 can include an NAND flip flop hav-ing a set input connected to the output of the receiver 48 a~d a reset input connected to an output from the microcomputer 24.
Each time the pilot depresses the microphone button, the carrier signal from the receiver is at a low level which sets the flip flop to generate a radio receiver interrupt signal to the microcomputer. The microcomputer resets the flip flop and counts the number of such radio receiver interrupt signals received during a predetermined period of time to determine whether or not to activate the transmitter. This circuit is not utilized when the transmitter is to operate continuously. ~ ~ ;
Having described the basic circuitry which is used to implement the present invention, the operation of the micro-' ~ ~
~45441 processor~based ~ystem will now be di~cu~sed, Ther~ are tXree baslc mode~ o~ operation of the ~y~tem: the acquisltion ~ode, the playback mode and the record~ng mod~. The gygte~ 1~ no~mally ln the acqu~s~tion mode durin~ wh1cX time the ~c~o~om~utex is S reading and analyzing data rom the weather tx~n~ducers. I~ thQ
approprlate sl~nals are received ~rom an a~rc~at, the ~yst~m will automatically switch to the playback mod~ wherein real-t~me weather information 1~ transmittea to the aircraf~ aving tran~mitted the lnformatlon~ th2 ~y~tem will automatically return to the acquisition mode, The system enterY th~ third mode of operatlon, the recordlnq mode~ when the ~witch 45 i~ ~anually actuated indicnting ~hat it is desired to proqram the ~o~c~
storage unit. If the sy~te~ ~8 cont~nuou~ly trnn~mittin~, the ac~ulsition and pl~yback mode~ can be multiplexed.
l~ ~ur~ng the acquisitlQn ~odc, the mlcroc~mputex 24 generates : the appropriat¢ address and control ~ignals on the lines 25 and 26 to ~e~uen~ially rosd tXs data from the tran ucers ll~ 13, 15 and l?. Data would also bc read from the transducer~ repre~entea by block 20. ~ll of the aata can be read~ for example, every thirty ~econds. Each tlmo data i3 read from any o the tran~- :
ducer9 ~ lt i~ compared with the corr~pond~ ng preY~ously read ~` values. The correspondlng readlng~ ~hould not yary sl~nificantly ~ ~ ~etween successlve sampl~ng periods. Thu~, l$ one of the~e :~ xeadln~ differ~ from tho last correspondin~ readin~ by more than as a predetermlned amount, thero has~e~n ~ system malfunctlon ~nd ; the mlcrocomputer take3 the approprlate ~ction to lndlcate the . malfunct$on such as tran~mitting a me~ago that a malfunction hAs oqcurred and indlcatlng th~ la~t rRadlng:before the ~al~unction.
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IL~S441 }lowever, i~ th~ eorre~pondln~ reading~ are wlthin th~ pre-deter~ined llml~, the ~y~tem i~ i.unct~oning:properly and t~e valu~s are st~r~d in the memory gc~ that they can be outputted i~
the system switc~e~ to tl-e playbaak mode, The data whlch is o~tained ~rom the wind dlrect~on and the wind speed tran~ducers are analyzed to prov~de the p~lot with wind condition information. I~en data haæ been read ~rom the w~nd directlon tran3ducer, the microcomputer execute8 an inAtruc-tion ~et whlch determine~ the most prominent directlon reading:
that ha~ occurred durlng a preaeterminèd tlme interval which can ~e, for exanple, the last flva minute~, The micro~omputer al~o ~eterm~ne~ the mo~t prominent variation during thi~ time interval The most promlnent directlon rèadin~ can be either the reading that ha~ be~n the mo~t frequent or it can bc the ~tati~tical ~vera~e o~ all dlrection read~n~s taken wlthln the last pre-determined tlme lnterval. The mo~t prominent variation can ~e the readin~ other than th~ wind ~irectlon readlng that ha~
occurred most ~requently. The most prominent direction and . variatlon readlng~ are then ~tored in the memory ~or future compari~on~ as wlll be ~isaussed. ~
The readings obtained from the wlnd speed tran~clucer are analyzed ln a ~anner similar to the wind direction reading~.
: Afte~ data ha~ been read from the wind ~pesd transducer 15, the microcomputer determines the moæt promlnent speed readin~ and the mo~t prom~nent gu~t readlng~that hAs occurred wlthln the las~
predetermine~ time interval. The promlnent ~peed and gu8t . read~ngs are calculAted ln ~ manner ~lm~lar to th~ previousLy mentioned directlon and varlatlon readlng re~pectlvely. T~e m~st :
prominent ~peed snd gu~t reading nre ~hen tored ln th~ memor~. :
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The microcomputer then functions to classif~ the wind information. If the wind speed and wind variation are less than a pair of predetermined reference values, for example, five knots and ten degrees respectively, then the present wind condition is classified as l'calm". However, if the wind speed is less than its predeterm:ined values, the present wind condition is classified as "light" and "variable".
If the difference between the wind direction and the wind variation is lèss than a predetermined value, for example, ten degrees, then the microcomputer will not provide the aircraft with the information concerning the wind variation. Furthermore, if the difference between the wind speed and the wind gust is less than a predetermined value, for example, five knots,then the microcomputer will not provide the aircarft with the wind gust information. Thus, if the wind variation and gusts do not vary significantly from the wind direction and speed respectively, it is not necessary to , provide the pilot of the aircraft with this information.
After readLng the barometer and thermometer transducers and determining the present wind conditions, the microcomputer is ready to repeat the above sequence of operations. The microcomputer will continue to function in the acquisition ~; mode until it is interrupted to switch to either the playbac~
or the recording modes.
When it is desired to enter the recording mode to pro~
gram the VSU 29, the switch 45 is closed to generate a control logic interrupt signal to~the microcomputer 24. The micro-computer will then begin to execute the proper instructions.
As previously mentioned, ~ -14-~''~`''' ~1 ~45441 the ~e~board 46 enahles ~he ~rogrammer to select th~ addre~s location of the YSU a~ whic~ a ~ord or a group of ~Jords are ~o b~
stored. Ty~ically, th~ VSU 29 can be pro~rammed a~ follot~ .
~.ddress Word .
. . _ _ 0 ~ero 1 one 2 two
3 threa
4 ~our o 5 fiv~
6 ~ix 7 seven eight nine ~5 10~ (airport l~entificat on ` 14 ~ . t~nd alt~meter 16 ~t ~: : 17 temperature 0 18 ~ : ~ust :
19 light and ~ariable :
calm ;~ 21 barometer ~` 2~ (other lnfor~a~ion pertlnent to eith~r landlng or take of P .
. ~he microcomputer enters lnto the play~acX moAe when th~
pilot of the alrcra~t generates the approprlat~ number of sl~n~l ¦ pul~o by depreaalng tho traA~mlt/recelv- ~1.ech o~ tho r~dlo - 15 - :
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~1~5441 telephone equ~pment, In the playbac~ mode, the microcompl~ter individually addresses the locatlon~ ~n the V5U tQ generate the appropriate messagQ. The r.~e~sage can includ~ ~uch lnformatio~ as .
the identificatlon of th~ a~rport, weather and other ~ertinent inormatlon. The numerical portion~ of the mes~à~ will be broa~cast as 9il1gle~ di~it~, Also, the uni~cs portions o~ the mes~aqe ~uch as feet, knot~ ~ de~frees, etc. need not ~e broadcas'c as the~e ara ~tandard unit~ in a~rcraft ln~ormatlon systems. For example, an altimeter ~ettln~ of 29.92 lnches o~ mercury will be broadcast as followss "alt~meter",~twon,`~nine~,nn~ne0, "two~.
: In ~um~ary, the method according to ~he present lnvention can be imple~nented by a system ~or transmltting x~al-time sreather and other pertlnent in~ormation to an airplan~ havin~ radio telephone e~u~pment wherein th~ airplane pllot generate~ a ~ignal .
1~ frQm th~ raalo telephonQ e~uipment to ~ctlvat~ the ~y~tem or the ~ystem can operate continuously. ~he 9y8tem compr~se~ a source of a sl~nal representing instantaneous we~ther information and : means re~ponsive t~ the ~eather in~ormation ~i~nal over a pre-: detarmined tl~e lnterval ~or dete~minin~ a real~time weather infor~ation value, the determ~nin~ means gensratln~ an addr~3~
~ignal repre~enting the real-time weather lnformatlon value. T~e 3ystem urther compri~ mean~ for ~torlng ~ pl~rality o~ ~ignal~
: representing real-time weather lnormat~on ma~snges, the ~to~aga me~ns bein~ responstve to the addre~s ~gnal for generatin~ the one of the plural~ty o me~age ~ignals corre~pondln~ to ~he xeal-time weather information ~alue,~snd transmitting ne~n~ ;
. responsive tc the~ one me~a~e ~lgnal for tran~mlttin~ the one mes~a~e sl~nal to the radio telephone egulp~ent whereby the re~l- :
~lme weather in~osm~lon messa~e 1~ audlbly repxoduced ~or ~h~
pilot.
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l The si~nal ~ource can be a weather transdu~er which generateC
¦ the lnstantaneou~ weather informatlon ~ignal ~o ~ mic~o~omputer ¦ a~ the r.leans for determ~nln~ an addres~ signal re~reeent~ny the ¦ real~time weather ~nformation ~alue. ~ypical gi~nal ~ource~
i ¦ incluae temperaturer wind ~peed, wlnd direction and ~arometxlc ¦ pres~ure tran~ducers.
l ~ig. 2 i~ a 10w dlagrAm o~ a m~thod ~or transmittlng resl-¦ t~me weat~er in~ormat$on according to the present invention. ~ .
¦ plurality of signals repre~entln~ real-tlme w~ather information .0 ¦ message~ are ~tored. Then signals representin~ the Yalu~ D~
¦ in~tantaneous wea~her information nre g~ner~ted. a real-time ¦ weather informa~ion va1ue i8 dotermined from the in~tantaneous weather in~ormatlon s~gnRls gener~ted over ~ predetermined time I interYal. ~n addre3s signal repre~entlng the real-~ime weather .5 ¦ information value iB generated and th~ store~ meB~age signal ¦ corre~ponding to the real-tlma weather in~ormat~on value i~ :
¦ ~enerated. Thi3 message signal i8 then tran~m~tted to the .~ ¦ remotely located recel~er. ~
¦ ~eferring to Fig. 2, ~he method ~egin~.a~ "~TART ~1" 61~ An 0 :. ¦ ~n~truc~on ~2 direct~ the ~torage o~ ~ignals repre~nting real-: I t~me weather in~ormation messa~s. Then the method enterR the ¦ data acquisitlon step seyuence at "ST~RT ~2~ ~3, Instantaneous :
: ¦ weather informatlon 1~ sensed by one or more transducers in ¦ accordance wlth an in~tructlon 64 and siynals repre~entin~ the .
¦ values of the sensed instant~neous weather ln~ormation ~ra : . ¦ ~enerated in accordance with an in~truct~n fiS0 .
¦ The system ~hown in Flg.~l can ~e ut~lized to lmplement the m~thod accord1ng to the ~reaent 1nvcnt1c-. The mul~1plexcr 19 ?-I . ~ ~ ~ ' I ~ .
I . .
~ 544~
s~lects the transducers ln sequence and the A/~ con~erter 21 ~erforms an instruct~on 66 ~y convert~ng the ~naloq ~i~nal of the transducer I (~7here I represent~ the numher o~ the tran~ducer select~d) to a c1igital 6i~nal. Then the valu~ "A" o~ the pxesent S si~nal 1~ compared ~ith the last value "B" of the stored ~l~nal~
ln accordance with an ~nstxuction 67. If the difference between "A" and 11~ e~ceed~ a predetermined amount "C", $here has been a system malfunction, A deci~lon point 68 branche.~ ~t "YES" and directs the method to an in~truction 69 to generate an lndication o~ the mal~unctlon when the diference exceeds a predete~mlned value n cn : Both the ~10~ branch f~om the decislon point 68 and the in~truct~on 69 lead to an instruction 71 where~n the value of the present si~nal ls stored and a real-tim~ wenth3~ informatlon lS value i~ det~rmined ~rom the store~ we~ther information si~nal3 over a predetermlned time lnterval. I~ the last transducer ln the group has not been read, then the me~hod hranch~s at a decislon point 72 at "NO" and one i~ addefl to the tran~ducer number I by an instruction 73. The method return6 to the ln-struct~on 66.
~en the last tran6ducer ln the ~roup ha~ b~en read, th~
~ethod branch~s at "YES~ and the transducer number i8 re~et t~
one by an ln~truction 74, Tbc method then enters the playback : mode at "ST~RT ~3" 75. In accordance ~ith an instruction 7fi, ttleweather ln~ormal;lon I 15 s~leotcd and an addres.s slgnal x~prc-Benting tl~e ~elected re~l-tl~e weather in~ormatlon v~lue 1~
~enerated ln accord~nce with an in~tr~ctlon 77. ~n ln~tructi~n 7a cause~ th~ s1:ored m¢~ e 5i~n~1 corre~pondln~ to the ~electe~
re~l-t~me weather ~nform~elon to be qener~ted ln accordanse wi~h .
: - lB -~145441 . , ~
the a~dres~ signal, Then, the mes~age 6ign~ tr~nsmitted in accordancQ with an lnstruction 790 If thQ ~a~t weather infor~ation n~e~age ha~ not been trans-~ mitted, then the mcthod branchc~ at a declslon po~nt 81 at "~10"~nd one is added to tha weather lnformation numbex I ~y an ins~xuction 82. ~he rnetllod then ~eeturn~ to the lnstruction 7fi.
I~ the last weather informat~on me~aqe h~ been transmltted, then th~ method branches at "YES" and the weather in~ormation : number is reset to one by an instructlon 83, Th~ method then return~ to "START ~2" 63.
; The flow d~a~ram of ~1g, 2 repre~ents ~ method in ~hich thedata acquisit~on and playback modes ars ~ont~ nuou~ly alternat¢d wit~ ~ach mode looplng throuyh all transducer~m~ssaqes ln the ser$e~ before the other modn o~ operatlon ~ ~tarted. In the lS alternat$ve, the data acquisitlon mode an~ the playback mode can: b~ completed for each txansducer~message before the next OnQ is begun. It can also be ~een that the entry ~nto the playback mode can ~e actuate~ upon co~mana rather than b~ auto~atlc. Furth~r-~ore, tha ~e~sages can~be tran~mltted manually, ~ : ~
~ In accordance w~th th~ provlslQn~`-of the pa nt- sta~u~R~ :
the prlnciple and mode o~ operatlon o~ tha lnYentlon have be~n .:
explalned anfl lllustrAted ln lt~ pre~erred embodi~ent! ~30wever, 1~ mu~t ~ unders~ood th~t the ln~ention may b~ ~racticed other-:~ wi~e than a~ speci~cally illustrated and descrlb~d wlthout 25 ~ departing ~rom lt~ spirit or ~cope.
"-19- , ~' ~ ~ '
6 ~ix 7 seven eight nine ~5 10~ (airport l~entificat on ` 14 ~ . t~nd alt~meter 16 ~t ~: : 17 temperature 0 18 ~ : ~ust :
19 light and ~ariable :
calm ;~ 21 barometer ~` 2~ (other lnfor~a~ion pertlnent to eith~r landlng or take of P .
. ~he microcomputer enters lnto the play~acX moAe when th~
pilot of the alrcra~t generates the approprlat~ number of sl~n~l ¦ pul~o by depreaalng tho traA~mlt/recelv- ~1.ech o~ tho r~dlo - 15 - :
: ' .
. :
~1~5441 telephone equ~pment, In the playbac~ mode, the microcompl~ter individually addresses the locatlon~ ~n the V5U tQ generate the appropriate messagQ. The r.~e~sage can includ~ ~uch lnformatio~ as .
the identificatlon of th~ a~rport, weather and other ~ertinent inormatlon. The numerical portion~ of the mes~à~ will be broa~cast as 9il1gle~ di~it~, Also, the uni~cs portions o~ the mes~aqe ~uch as feet, knot~ ~ de~frees, etc. need not ~e broadcas'c as the~e ara ~tandard unit~ in a~rcraft ln~ormatlon systems. For example, an altimeter ~ettln~ of 29.92 lnches o~ mercury will be broadcast as followss "alt~meter",~twon,`~nine~,nn~ne0, "two~.
: In ~um~ary, the method according to ~he present lnvention can be imple~nented by a system ~or transmltting x~al-time sreather and other pertlnent in~ormation to an airplan~ havin~ radio telephone e~u~pment wherein th~ airplane pllot generate~ a ~ignal .
1~ frQm th~ raalo telephonQ e~uipment to ~ctlvat~ the ~y~tem or the ~ystem can operate continuously. ~he 9y8tem compr~se~ a source of a sl~nal representing instantaneous we~ther information and : means re~ponsive t~ the ~eather in~ormation ~i~nal over a pre-: detarmined tl~e lnterval ~or dete~minin~ a real~time weather infor~ation value, the determ~nin~ means gensratln~ an addr~3~
~ignal repre~enting the real-time weather lnformatlon value. T~e 3ystem urther compri~ mean~ for ~torlng ~ pl~rality o~ ~ignal~
: representing real-time weather lnormat~on ma~snges, the ~to~aga me~ns bein~ responstve to the addre~s ~gnal for generatin~ the one of the plural~ty o me~age ~ignals corre~pondln~ to ~he xeal-time weather information ~alue,~snd transmitting ne~n~ ;
. responsive tc the~ one me~a~e ~lgnal for tran~mlttin~ the one mes~a~e sl~nal to the radio telephone egulp~ent whereby the re~l- :
~lme weather in~osm~lon messa~e 1~ audlbly repxoduced ~or ~h~
pilot.
. . ~: .
. ' ' ~
- 16 - ~ ~
.` :
.
1 ~3L4~;~41 ;
l The si~nal ~ource can be a weather transdu~er which generateC
¦ the lnstantaneou~ weather informatlon ~ignal ~o ~ mic~o~omputer ¦ a~ the r.leans for determ~nln~ an addres~ signal re~reeent~ny the ¦ real~time weather ~nformation ~alue. ~ypical gi~nal ~ource~
i ¦ incluae temperaturer wind ~peed, wlnd direction and ~arometxlc ¦ pres~ure tran~ducers.
l ~ig. 2 i~ a 10w dlagrAm o~ a m~thod ~or transmittlng resl-¦ t~me weat~er in~ormat$on according to the present invention. ~ .
¦ plurality of signals repre~entln~ real-tlme w~ather information .0 ¦ message~ are ~tored. Then signals representin~ the Yalu~ D~
¦ in~tantaneous wea~her information nre g~ner~ted. a real-time ¦ weather informa~ion va1ue i8 dotermined from the in~tantaneous weather in~ormatlon s~gnRls gener~ted over ~ predetermined time I interYal. ~n addre3s signal repre~entlng the real-~ime weather .5 ¦ information value iB generated and th~ store~ meB~age signal ¦ corre~ponding to the real-tlma weather in~ormat~on value i~ :
¦ ~enerated. Thi3 message signal i8 then tran~m~tted to the .~ ¦ remotely located recel~er. ~
¦ ~eferring to Fig. 2, ~he method ~egin~.a~ "~TART ~1" 61~ An 0 :. ¦ ~n~truc~on ~2 direct~ the ~torage o~ ~ignals repre~nting real-: I t~me weather in~ormation messa~s. Then the method enterR the ¦ data acquisitlon step seyuence at "ST~RT ~2~ ~3, Instantaneous :
: ¦ weather informatlon 1~ sensed by one or more transducers in ¦ accordance wlth an in~tructlon 64 and siynals repre~entin~ the .
¦ values of the sensed instant~neous weather ln~ormation ~ra : . ¦ ~enerated in accordance with an in~truct~n fiS0 .
¦ The system ~hown in Flg.~l can ~e ut~lized to lmplement the m~thod accord1ng to the ~reaent 1nvcnt1c-. The mul~1plexcr 19 ?-I . ~ ~ ~ ' I ~ .
I . .
~ 544~
s~lects the transducers ln sequence and the A/~ con~erter 21 ~erforms an instruct~on 66 ~y convert~ng the ~naloq ~i~nal of the transducer I (~7here I represent~ the numher o~ the tran~ducer select~d) to a c1igital 6i~nal. Then the valu~ "A" o~ the pxesent S si~nal 1~ compared ~ith the last value "B" of the stored ~l~nal~
ln accordance with an ~nstxuction 67. If the difference between "A" and 11~ e~ceed~ a predetermined amount "C", $here has been a system malfunction, A deci~lon point 68 branche.~ ~t "YES" and directs the method to an in~truction 69 to generate an lndication o~ the mal~unctlon when the diference exceeds a predete~mlned value n cn : Both the ~10~ branch f~om the decislon point 68 and the in~truct~on 69 lead to an instruction 71 where~n the value of the present si~nal ls stored and a real-tim~ wenth3~ informatlon lS value i~ det~rmined ~rom the store~ we~ther information si~nal3 over a predetermlned time lnterval. I~ the last transducer ln the group has not been read, then the me~hod hranch~s at a decislon point 72 at "NO" and one i~ addefl to the tran~ducer number I by an instruction 73. The method return6 to the ln-struct~on 66.
~en the last tran6ducer ln the ~roup ha~ b~en read, th~
~ethod branch~s at "YES~ and the transducer number i8 re~et t~
one by an ln~truction 74, Tbc method then enters the playback : mode at "ST~RT ~3" 75. In accordance ~ith an instruction 7fi, ttleweather ln~ormal;lon I 15 s~leotcd and an addres.s slgnal x~prc-Benting tl~e ~elected re~l-tl~e weather in~ormatlon v~lue 1~
~enerated ln accord~nce with an in~tr~ctlon 77. ~n ln~tructi~n 7a cause~ th~ s1:ored m¢~ e 5i~n~1 corre~pondln~ to the ~electe~
re~l-t~me weather ~nform~elon to be qener~ted ln accordanse wi~h .
: - lB -~145441 . , ~
the a~dres~ signal, Then, the mes~age 6ign~ tr~nsmitted in accordancQ with an lnstruction 790 If thQ ~a~t weather infor~ation n~e~age ha~ not been trans-~ mitted, then the mcthod branchc~ at a declslon po~nt 81 at "~10"~nd one is added to tha weather lnformation numbex I ~y an ins~xuction 82. ~he rnetllod then ~eeturn~ to the lnstruction 7fi.
I~ the last weather informat~on me~aqe h~ been transmltted, then th~ method branches at "YES" and the weather in~ormation : number is reset to one by an instructlon 83, Th~ method then return~ to "START ~2" 63.
; The flow d~a~ram of ~1g, 2 repre~ents ~ method in ~hich thedata acquisit~on and playback modes ars ~ont~ nuou~ly alternat¢d wit~ ~ach mode looplng throuyh all transducer~m~ssaqes ln the ser$e~ before the other modn o~ operatlon ~ ~tarted. In the lS alternat$ve, the data acquisitlon mode an~ the playback mode can: b~ completed for each txansducer~message before the next OnQ is begun. It can also be ~een that the entry ~nto the playback mode can ~e actuate~ upon co~mana rather than b~ auto~atlc. Furth~r-~ore, tha ~e~sages can~be tran~mltted manually, ~ : ~
~ In accordance w~th th~ provlslQn~`-of the pa nt- sta~u~R~ :
the prlnciple and mode o~ operatlon o~ tha lnYentlon have be~n .:
explalned anfl lllustrAted ln lt~ pre~erred embodi~ent! ~30wever, 1~ mu~t ~ unders~ood th~t the ln~ention may b~ ~racticed other-:~ wi~e than a~ speci~cally illustrated and descrlb~d wlthout 25 ~ departing ~rom lt~ spirit or ~cope.
"-19- , ~' ~ ~ '
Claims (7)
1. A method of transmitting a plurality of types of real-time weather information to a remotely located receiver comprising the steps of:
a. generating a signal representing instantaneous weather information;
b. determining a real-time weather information value from said instantaneous weather information signal over a predetermined time interval;
performing said steps a. and b. for each one of said types of real-time weather information in sequence;
c. generating an address signal representing said real-time weather information value;
d. storing a plurality of signals representing real-time weather information messages;
e. generating the one of said message signals corres-ponding to the real-time weather information value in response to said address signal;
f. transmitting said one message signal to the receiver; and performing steps c. through f. for each one of said types of real-time weather information in sequence.
a. generating a signal representing instantaneous weather information;
b. determining a real-time weather information value from said instantaneous weather information signal over a predetermined time interval;
performing said steps a. and b. for each one of said types of real-time weather information in sequence;
c. generating an address signal representing said real-time weather information value;
d. storing a plurality of signals representing real-time weather information messages;
e. generating the one of said message signals corres-ponding to the real-time weather information value in response to said address signal;
f. transmitting said one message signal to the receiver; and performing steps c. through f. for each one of said types of real-time weather information in sequence.
2. The method according to Claim 1 wherein said step b.
includes averaging said weather information signal over said predetermined time interval for obtaining said real-time in-formation signal.
includes averaging said weather information signal over said predetermined time interval for obtaining said real-time in-formation signal.
3. The method according to Claim 1 including the step of generating an activation signal and wherein said step c. is performed in response to said activation signal.
4. The method according to Claim 1 wherein said step a. includes periodically storing the present value of said instantaneous weather information.
5. The method according to Claim 4 including the step of comparing said present value of said instantaneous weather information signal with the value of the last stored value of said instantaneous weather information signal and generating a malfunction indication if the difference exceeds a predeter-mined value.
6. A method for transmitting a real-time weather and other information to an airplane having a radio receiver com-prising the steps of:
a. generating a plurality of signals representing instantaneous weather information including a temperature signal, a wind speed signal, a wind direction signal and a barometric pressure signal;
b. determining a real-time weather information value for each of said plurality of weather information signals over individual predetermined time intervals;
c. generating a plurality of address signals each representing one of said real-time weather information values;
d. storing a plurality of signals representing real-time weather information messages;
e. generating the one of the plurality of message signals corresponding to each one of said real-time weather information values in response to said address signals; and f. transmitting said message signals to the radio receiver whereby said real-time weather information signals are audibly reproduced to provide the pilot with temper-ature, wind speed and direction and barometric pressure information; and performing said steps a. through f. for each one of said weather information signals in sequence.
a. generating a plurality of signals representing instantaneous weather information including a temperature signal, a wind speed signal, a wind direction signal and a barometric pressure signal;
b. determining a real-time weather information value for each of said plurality of weather information signals over individual predetermined time intervals;
c. generating a plurality of address signals each representing one of said real-time weather information values;
d. storing a plurality of signals representing real-time weather information messages;
e. generating the one of the plurality of message signals corresponding to each one of said real-time weather information values in response to said address signals; and f. transmitting said message signals to the radio receiver whereby said real-time weather information signals are audibly reproduced to provide the pilot with temper-ature, wind speed and direction and barometric pressure information; and performing said steps a. through f. for each one of said weather information signals in sequence.
7. A method for transmitting real-time weather and other information to an airplane having a radio receiver comprising the steps of:
a. generating a plurality of signals representing instantaneous weather information including a temperautre signal, a wind speed signal, a wind direction signal and a barometric pressure signal;
b. determining a real-time weather information value for each of said plurality of weather information signals over individual predetermined time intervals;
performing said steps a. and b. for each of said weather information signals in sequence;
c. generating a plurality of address signals each representing one or said real-time weather information values;
d. storing a plurality of signals representing real-time weather information messages;
e. generating the one of the plurality of message signals corresponding to each one of said real-time weather information values in response to said address signals;
and f. transmitting said message signal to the radio receiver whereby said real-time weather information signals are audibly reproduced to provide the pilot with temper-ature, wind speed and direction and barometric pressure information; and performing said steps c. through f. for each of said weather information signals in sequence.
a. generating a plurality of signals representing instantaneous weather information including a temperautre signal, a wind speed signal, a wind direction signal and a barometric pressure signal;
b. determining a real-time weather information value for each of said plurality of weather information signals over individual predetermined time intervals;
performing said steps a. and b. for each of said weather information signals in sequence;
c. generating a plurality of address signals each representing one or said real-time weather information values;
d. storing a plurality of signals representing real-time weather information messages;
e. generating the one of the plurality of message signals corresponding to each one of said real-time weather information values in response to said address signals;
and f. transmitting said message signal to the radio receiver whereby said real-time weather information signals are audibly reproduced to provide the pilot with temper-ature, wind speed and direction and barometric pressure information; and performing said steps c. through f. for each of said weather information signals in sequence.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US36,518 | 1979-05-07 | ||
| US06/036,518 US4295139A (en) | 1979-05-07 | 1979-05-07 | Method for transmitting airport weather information |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1145441A true CA1145441A (en) | 1983-04-26 |
Family
ID=21889034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000351375A Expired CA1145441A (en) | 1979-05-07 | 1980-05-06 | Method for transmitting airport weather information |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4295139A (en) |
| JP (1) | JPS5676900A (en) |
| BR (1) | BR8002817A (en) |
| CA (1) | CA1145441A (en) |
| DE (1) | DE3017425A1 (en) |
| FR (1) | FR2456355A1 (en) |
| GB (1) | GB2050020B (en) |
| IT (1) | IT1127457B (en) |
| MX (1) | MX149174A (en) |
| NL (1) | NL8002612A (en) |
| SE (1) | SE8003381L (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10495787B2 (en) | 2016-06-16 | 2019-12-03 | I.M. Systems Group, Inc. | Integrated weather projection systems, methods, and apparatuses |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4481514A (en) * | 1982-03-09 | 1984-11-06 | Beukers Laboratories, Inc. | Microprocessor based radiosonde |
| US4520360A (en) * | 1982-09-20 | 1985-05-28 | General Signal Corporation | Sensing vertical and horizontal visibility |
| FR2544935B1 (en) * | 1983-04-22 | 1985-06-14 | Ferrand Charles | SPEAKING MACHINE, ESPECIALLY FOR TELEPHONE CENTRAL |
| DE3315188A1 (en) * | 1983-04-27 | 1984-10-31 | Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co KG, 8510 Fürth | COMBINATION DEVICE FROM BROADCASTING DEVICE AND AT LEAST ONE ADDITIONAL ELECTRONIC DEVICE |
| JPS60229537A (en) * | 1984-04-27 | 1985-11-14 | Gakken Co Ltd | Voice calling device |
| US4812844A (en) * | 1987-02-13 | 1989-03-14 | Kallstrom Walter H | Windshear detection indicator system |
| IT1213858B (en) * | 1987-12-04 | 1990-01-05 | Panerai Off Srl | AUTOMATIC RADIO-TRANSMISSION SYSTEM IN PHONE OF METEOROLOGICAL DATA FOLLOWING CODED QUESTION VIA RADIO |
| GB8803785D0 (en) * | 1988-02-18 | 1988-03-16 | Marconi Gec Ltd | Navigation system |
| DE3832985A1 (en) * | 1988-09-29 | 1990-04-05 | Renk Ag | DEVICE FOR PROCESSING AND WIRELESSLY SENDING MEASURED VALUES |
| US5221924A (en) * | 1989-10-11 | 1993-06-22 | University Corporation For Atmospheric Research | Wind shear alert system |
| US5105191A (en) * | 1989-11-13 | 1992-04-14 | Artais Development, Inc. | Apparatus and method for detecting and indicating weather conditions for aircraft |
| US5402116A (en) * | 1992-04-28 | 1995-03-28 | Hazeltine Corp. | Atmospheric pressure calibration systems and methods |
| FR2702071A1 (en) * | 1993-02-26 | 1994-09-02 | Alexandre Gerard | Sensors which can be consulted remotely and which supply data by voice synthesis |
| US5517193A (en) * | 1993-04-30 | 1996-05-14 | International Business Machines Corporation | Meteorological workstation |
| US5434565A (en) * | 1994-03-22 | 1995-07-18 | Potomac Aviation Technology Corporation | Automatic weather monitoring and adaptive transmitting system |
| US5612667A (en) * | 1995-07-05 | 1997-03-18 | Ford Motor Company | In-vehicle barometric pressure detection system |
| US5978738A (en) | 1997-02-13 | 1999-11-02 | Anthony Brown | Severe weather detector and alarm |
| DE19705635B4 (en) * | 1997-02-14 | 2006-11-16 | Siemens Ag | Device for triggering a control and / or warning process in a motor vehicle |
| WO1999040457A1 (en) * | 1998-02-09 | 1999-08-12 | Alliedsignal Inc. | Aircraft weather information system |
| AU744947B2 (en) * | 1999-03-24 | 2002-03-07 | Mitsubishi Denki Kabushiki Kaisha | Automatic airport information transmitting apparatus |
| US6380869B1 (en) | 1999-05-19 | 2002-04-30 | Potomac Aviation Technology Corporation | Automated air-traffic advisory system and method |
| US6311107B1 (en) * | 2000-06-23 | 2001-10-30 | The United States Of America As Represented By The National Aeronautics And Space Administration | Wind advisory system |
| US7027898B1 (en) | 2000-10-30 | 2006-04-11 | Honeywell International Inc. | Weather information network including graphical display |
| US20020115422A1 (en) * | 2001-02-16 | 2002-08-22 | Robinson Bruce R. | System and method for a voice controlled weather station |
| US20040098260A1 (en) * | 2002-06-21 | 2004-05-20 | Sharpe Richard B. | Compact talking personal environmental status device |
| US7088241B2 (en) * | 2003-10-31 | 2006-08-08 | Mackinac Software, Llc | Business process for disseminating pilot weather data by voice |
| US7471196B2 (en) * | 2003-10-31 | 2008-12-30 | Mackinac Software, Llc | Business process for disseminating pilot weather data by voice |
| US9706294B2 (en) * | 2015-03-18 | 2017-07-11 | Infineon Technologies Ag | System and method for an acoustic transducer and environmental sensor package |
| DE102017111117A1 (en) * | 2017-05-22 | 2018-11-22 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Method for determining the airspeed of an aircraft |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3281789A (en) * | 1962-11-02 | 1966-10-25 | Frederick P Willcox | Multiple remote interrogated information system |
| US3373405A (en) * | 1964-08-19 | 1968-03-12 | Navy Usa | Four-channel telemetry circuit |
| DE2326521A1 (en) * | 1973-05-24 | 1974-12-05 | Rohde & Schwarz | ARRANGEMENT FOR THE AUTOMATIC DIRECTION AND LOCATION OF AIRPLANES |
| US4043194A (en) * | 1976-08-20 | 1977-08-23 | Tanner Jesse H | Wind shear warning system |
| US4079905A (en) * | 1977-02-07 | 1978-03-21 | Safe Flight Instrument Corporation | System for providing an indication of wind shear |
| US4163216A (en) * | 1977-08-29 | 1979-07-31 | Arpino R | System for transmitting airport weather information |
-
1979
- 1979-05-07 US US06/036,518 patent/US4295139A/en not_active Expired - Lifetime
-
1980
- 1980-05-06 MX MX182190A patent/MX149174A/en unknown
- 1980-05-06 SE SE8003381A patent/SE8003381L/en not_active Application Discontinuation
- 1980-05-06 IT IT48595/80A patent/IT1127457B/en active
- 1980-05-06 GB GB8015019A patent/GB2050020B/en not_active Expired
- 1980-05-06 CA CA000351375A patent/CA1145441A/en not_active Expired
- 1980-05-07 FR FR8010194A patent/FR2456355A1/en active Granted
- 1980-05-07 NL NL8002612A patent/NL8002612A/en not_active Application Discontinuation
- 1980-05-07 JP JP6045280A patent/JPS5676900A/en active Pending
- 1980-05-07 DE DE19803017425 patent/DE3017425A1/en not_active Ceased
- 1980-05-07 BR BR8002817A patent/BR8002817A/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10495787B2 (en) | 2016-06-16 | 2019-12-03 | I.M. Systems Group, Inc. | Integrated weather projection systems, methods, and apparatuses |
| US11048022B2 (en) | 2016-06-16 | 2021-06-29 | I.M. Systems Group, Inc. | Integrated weather projection systems, methods, and apparatuses |
| US11841480B2 (en) | 2016-06-16 | 2023-12-12 | I.M. Systems Group, Inc. | Integrated weather projection systems, methods, and apparatuses |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2050020A (en) | 1980-12-31 |
| BR8002817A (en) | 1981-01-21 |
| GB2050020B (en) | 1982-11-24 |
| IT8048595A0 (en) | 1980-05-06 |
| SE8003381L (en) | 1980-11-08 |
| DE3017425A1 (en) | 1980-11-20 |
| US4295139A (en) | 1981-10-13 |
| FR2456355B1 (en) | 1984-07-27 |
| NL8002612A (en) | 1980-11-11 |
| JPS5676900A (en) | 1981-06-24 |
| IT1127457B (en) | 1986-05-21 |
| FR2456355A1 (en) | 1980-12-05 |
| MX149174A (en) | 1983-09-14 |
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