WO2001024569A1 - System zum austausch von daten - Google Patents
System zum austausch von daten Download PDFInfo
- Publication number
- WO2001024569A1 WO2001024569A1 PCT/DE2000/003372 DE0003372W WO0124569A1 WO 2001024569 A1 WO2001024569 A1 WO 2001024569A1 DE 0003372 W DE0003372 W DE 0003372W WO 0124569 A1 WO0124569 A1 WO 0124569A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- control unit
- data
- sub
- teleservice
- terminal
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Definitions
- the invention relates to a system for exchanging data between a terminal and a user device.
- the telecontrol technology includes the monitoring and control of spatially distant objects.
- telecontrol technology includes the reporting of switching states, the acquisition of measured values and meter readings or the issuing of switching commands in the electrical power supply.
- connection is established between a user device and the terminal device to be monitored or controlled.
- the connection must always exist between the user device and the terminal. Because in certain cases it is necessary that the states of the terminal are immediately forwarded to the user device. The required permanent connection between the user device and the terminal device has an adverse effect on the costs.
- the end device and the user device must be matched to one another. It is generally not possible to monitor a large number of different types of end devices with one user device. In this respect, the known system is inflexible.
- a system for exchanging data has at least one teleservice terminal and at least one user device, which can exchange data with the teleservice terminal.
- the system according to the invention also has a central control unit which has at least one access to a public communication network and can be connected to one of the user devices, which is a terminal of the communication network.
- a sub-control unit which on the one hand with the teleservice terminal and on the other hand with the central Control unit is connectable.
- the teleservice terminal transmits corresponding predetermined data to one of the sub-control units on the basis of an event.
- the sub-control units each have a first table, by means of which a first evaluation of the data takes place.
- the data are forwarded to the central control unit as a function of the first evaluation.
- a second evaluation takes place in the central control unit by means of a second table, on the basis of which the data are forwarded to a predetermined user device.
- the system according to the invention makes it easy to monitor and control remotely located devices.
- a device to be monitored or a system to be monitored is connected to a teleservice terminal. All that is required is an adjustment between the teleservice terminal and the device to be monitored.
- the connection of the teleservice terminal with the system according to the invention is standardized. This allows any devices to be monitored to be connected to the system.
- the fact that teleservice terminals can be manufactured much more cheaply than personal computers means that the monitoring of a device can be implemented very inexpensively using the system according to the invention.
- the system is completely independent of the device to be monitored, which is why even a total failure of the device to be monitored can be reliably diagnosed. Due to the standardization of the connection set up through the end rate, communication via a telephone connection is possible and is independent of the device to be monitored. Devices to be monitored can also be easily integrated into the system. By means of communication via a telephone connection, devices that are far away from any infrastructure can be integrated into the system by means of a radio telephone. Since the communication of the teleservice terminals with a user device is event-controlled by the system according to the invention, only low connection costs arise. Nevertheless, the device to be monitored is constantly under control.
- the user devices are terminals of a public communication network
- a user can access a teleservice terminal very flexibly. If the user device is, for example, a radio telephone, the user is no longer local.
- a user can also determine that, for example, automatic messages from certain teleservice terminals are directed to a specific user device, such as a fax. If the fax is in a service station, for example, measures can be taken immediately in accordance with the message.
- the structure of the system according to the invention ensures that unauthorized persons cannot connect to the teleservice terminals. Because the fact that the user devices can only access the central control unit means that the user devices cannot directly access the teleservice terminals.
- the authorization of a user can be checked in the central control unit, whereupon it is caused that a teleservice terminal in question contacts the user device.
- an incoming connection request is checked to determine whether the call comes from a sub-control unit or the central control unit.
- the first table present in the sub-control unit allows data to be collected, so that a large number of data can be transmitted when the relevant sub-control unit is connected to the central control unit.
- connection of the sub-control unit to the central control unit takes place, like the other connections, via a public network, such as the telephone network of DeutscheInstitut. It has a particularly advantageous effect on the connection costs that when a connection is established between the sub-control unit and the central control unit, all data temporarily stored in the sub-control unit are forwarded to the central control unit. This saves the separate establishment of a connection for data that is not to be forwarded immediately.
- a similar advantage results in an embodiment of the invention in which the data provided in a teleservice terminal are checked in the teleservice terminal using a third table to determine whether they are immediately forwarded to a sub-control unit or whether they are temporarily stored in the teleservice terminal.
- a third table to determine whether they are immediately forwarded to a sub-control unit or whether they are temporarily stored in the teleservice terminal.
- the third table comprises a comparison table by means of which data temporarily stored in a teleservice terminal are subjected to a third evaluation and, depending on this, are made available in a non-volatile memory area for remote transmission
- Action table comprises, by means of which it is determined under what circumstances a connection from the teleservice terminal to a relevant sub-control unit is provided. is taken, and includes a connection table in which connection paths to the sub-control units are contained.
- An embodiment of the invention has also proven to be particularly advantageous, in which the second evaluation is used to determine whether the data received from the central control unit is immediately forwarded to a user device. This results in further savings in connection setups. Because, since the data of all Teleservice terminals are sent to the central control unit, the central control unit manages a large number of data. Data that are not to be forwarded immediately to a user device are only forwarded to a relevant user device when the central control unit has received data which must be forwarded immediately to the user device. Or the data are stored in the central control unit, whereby they can be called up by the user device at any time. By collecting the data, the number of connection setups is greatly reduced. In addition, the data stored in the central control unit can be examined for further features, with the result of the examination being able to automatically forward certain data.
- An embodiment of the invention is also particularly advantageous in which the second table of the central control unit and / or the first table of the sub-control unit and / or the third table of the teleservice terminal can be generated or overwritten by the user device. This allows the system to be easily adapted to changing conditions. If, for example, a sub-control unit fails, the tables of the terminals which are to address this sub-control unit first can be changed such that they address another sub-control unit first. This has a particularly advantageous effect on the reliability of the data transmission.
- the central control unit has a first memory area for receiving an error message from a sub-control unit is particularly advantageous, the teleservice terminals relating to the third tables being overwritten due to an error message from the sub-control unit.
- the central control unit has a second memory area for receiving a control instruction from a user device, by means of which a teleservice terminal in question is caused to transmit data. In this way it is easily achieved that unauthorized persons cannot connect to the teleservice terminals. Because the fact that the user devices can only access the central control unit means that the user devices cannot directly access the teleservice terminals.
- the teleservice terminals have an input by means of which they can be activated for data transmission, the activation taking place on the basis of the control instruction of a user device, or on the basis of a request from the central control unit as a result of an error message ,
- a system according to the invention has a central control unit 3, to which sub-control units 5 are connected on the one hand.
- the central control unit 3 is connected to public communication networks 4.
- the communication networks can be, for example, the T-Net or the ISDN network of DeutscheInstitut or the Internet. It is thus possible for terminals 2 of the communication networks 4 to connect to the central control unit 3.
- the sub-control units 5 are meshed with remote devices 1, which each consist of a teleservice terminal 1 a and a device 1 b to be monitored. In this way, connections can be made from a remote terminal 1 to several sub-control units 5.
- the sub-control units 5 can also be meshed with one another, as a result of which connections between sub-control units 5 can also be established.
- the teleservice terminals 1a can be designed as a single-board computer with volatile and non-volatile memory areas and multiple interfaces.
- a first interface I is used for communication with the device 1b to be monitored, which can be a UPS system, for example.
- the interface occupied on the device 1b to be monitored is reconstructed via a second interface II, so that a user on site can still communicate with the device 1b to be monitored without the connection between the device 1b to be monitored and the teleservice terminal 1a to have to separate.
- the third table II can also be used to change the third table.
- a third interface III on the teleservice terminal 1a is designed as a data bus and enables the local networking of several teleservice terminals 1a for monitoring other systems at the same location.
- a fourth interface IV is used to connect a modem 1c.
- the teleservice terminal 1 a is an independent assembly with its own processor, which is thus independent of the device 1 b to be monitored and also enables the notification of a total failure of the device 1 b to be monitored.
- a second teleservice terminal 1a which is connected to a second device 1b to be monitored, can be connected to another teleservice terminal 1a via the third interface III, thereby saving a modem 1c can be.
- FIG. 1 Another option is alternatively shown on the right-hand side of the figure, in which three teleservice terminals 1a are networked with one another via the third interface III, two of the three teleservice terminals 1a having a modem 1c.
- the networking makes it possible for the networked teleservice terminals 1 a to connect to sub-control units 5 via each of the two modems 1 c. This has a particularly advantageous effect on the reliability of the system.
- a teleservice terminal 1a is in constant connection with a device 1b to be monitored via the first interface I, which can be designed as a bright interface.
- the operating data of the device 1b to be monitored which can be, for example, a UPS, are permanently read by the teleservice terminal 1a and stored temporarily using a protocol specific to this type of device to be monitored.
- the temporarily stored data are subjected to an evaluation using a comparison table and, depending on this, made available in a non-volatile memory area for remote transmission.
- a temperature value of the device 1b to be monitored is too high, this is determined in the teleservice terminal 1a by comparison with a first default value.
- the temperature value is marked as critical, provided with a time stamp from a clock on the teleservice terminal 1a and in the non-volatile output memory. If the temperature continues to rise and exceeds a second default value, the relevant temperature value is marked as particularly critical and is stored in the output memory together with the time stamp.
- Functional relationships are also registered and evaluated. If, for example, the communication between a teleservice terminal 1 a and the device 1 b to be monitored breaks down, this fact can be assessed as critical after a predetermined time and as particularly critical after a further time.
- a remote communication routine in the teleservice terminal constantly checks the output memory and, depending on the results of the evaluation, establishes a connection to a sub-control unit 5.
- the remote communication routine uses an action table, in which it is determined under which circumstances a connection is to be established, and a connection table, which contains the connection paths to the sub-control units 5.
- the action table determines, for example, that a connection must be established if the output memory contains a temperature value marked as particularly critical. It can also be determined that if the output memory contains a temperature value which is marked as critical, and at the same time it is established that there is a critical breakdown in the communication between the teleservice terminal 1a and the device 1b to be monitored, a connection is established.
- the action table can also be used to determine that a connection is established in the output memory even without critical values when a specific time is reached.
- a connection can also be established if a predetermined amount of data is available in the output memory. Another reason for establishing a connection is always a connection request from a sub-control unit 5 or the central control unit 3, which is recognized by a teleservice terminal 1 a.
- the remote communication routine establishes a connection to a sub-control unit 5 in which it takes a first connection path from the connection table and, via the fourth interface IV of the teleservice terminal, causes a connected modem 1c to set up a connection to the number corresponding to the first connection path. If the connection to the selected sub-control unit 5 is established, the sub-control unit 5 is called an identification number of the teleservice terminal 1 a, a call reason corresponding to the action table, the data are transmitted to the sub-control unit 5, the successful reception thereof acknowledged and the connection from the teleservice terminal 1a disconnected again. The transmitted data records are marked accordingly by the remote communication routine in the output memory and the action is assessed as successfully completed. The remote communication routine is now back in the initial state.
- connection attempts are directed to another sub-control unit 5 until a connection is made.
- the connection request can also be passed on among the Teleservice terminals 1a. If, for example, the analog telephone connection that a teleservice terminal 1a accesses is disturbed due to a failure of the telephone system, the connection request can be implemented via a second teleservice terminal 1a via an ISDN line or via a third teleservice terminal 1a by means of mobile radio access thereby transmitting the data of the first teleservice terminal 1 a to an accessible sub-control unit 5.
- the data received by the sub-control unit 5 can be buffered by the latter or can be transmitted immediately to the central control unit 3.
- the data of a routine call of the teleservice terminal 1 a at a specific time can, however, be temporarily stored by the sub-control unit 5 in order to transmit it to the central control unit 3 in a larger data packet together with the data of other teleservice terminals 1 a.
- the central control unit 3 represents the connection between the sub-control unit 5 and the communication networks 4 used by the user devices 2.
- the task of the central control unit 3 is to provide both the data from the teleservice terminals 1 a via the Incoming sub-control unit 5, as well as to save, evaluate and edit those that are entered by the user devices 2 and transmitted via the communication networks 4, so that an automatic exchange of information between the teleservice terminals 1 a and the user devices 2 is possible without these coming into direct connection with one another.
- the central control unit 3 has corresponding accesses to the communication networks 4, such as, for example, analog and digital telephone networks, mobile radio networks or a public data network such as, for example, an IP network.
- the graphically guided interaction with the user is implemented, for example, via the Internet, and fault messages can be output via e-mail, fax or mobile radio (SMS). Simple entries by the user, such as acknowledging a fault message, can also be made via telephone or mobile radio.
- the central control unit 3 can be divided into several different areas of responsibility.
- the central control unit 3 can thus comprise a user administration, a terminal administration, a rights administration, a terminal data area and a clock.
- the central control unit 3 has memory areas which the user can access via forms in order to enter personal data such as the number of his mobile phone, his fax number or his email address.
- the central control unit 3 has memory areas which the user can access, for example, via forms stored in the central control unit 3 in order to enter data relating to the teleservice terminal 1 a or the device 1 b to be monitored, for example the phone number of the modem connection, the country in which the device 1b to be monitored is operated, the type of device 1b to be monitored and so on.
- a selection is made here on which user device 2 a possible fault message from a remote device 1 is to be output. It also defines the circumstances under which messages should be generated.
- the central control unit 3 then automatically changes the corresponding tables in the sub-control units 5 and the teleservice terminals 1a.
- the central control unit 3 has memory areas which certain users can access via forms in order to define access rights for subordinate users. For example, it can be set that a service employee can only view the measured values of a certain group of devices to be monitored, whereas a technical manager can change the comparison tables with which the teleservice terminal 1a evaluates the measured values.
- the central control unit 3 has memory areas in which the data of the remote devices 1 are stored continuously, for example to enable long-term analysis.
- central control unit 3 there is also a central clock, by means of which clocks located in the sub-control units 5 and with each connection to the teleservice terminals 1 a, clocks located in the teleservice terminals 1 a can be synchronized.
- the data of a remote device 1 are evaluated in the central control unit 3 with the aid of the specifications defined by the user and are forwarded to a user device 2 as a function thereof.
- the user can receive a short message via his mobile phone as user device 2 when, for example, the temperature on his device 1 b to be monitored exceeds the comparison value stored in the relevant teleservice terminal 1 a.
- the user can also receive the measured values by e-mail, for example from twelve o'clock. To do this, he only has to automatically stimulate the central control unit 3 by entering the time in a corresponding form to signal a connection request to the relevant teleservice terminal 1 a via the sub-control unit 5 and subsequently in the teleservice terminal 1 a to enter the corresponding time in the comparison table of the teleservice terminal 1a to the sub-control unit 5.
- the connection request from the central control unit 3 to the sub-control unit 5 is sent to the
- Sub-control unit 5 also transmits the value to be entered by sub-control unit 5 in the table of teleservice terminal 1 a.
- the user indicates in a form that the central control unit 3 sends via the communication network 4 to the relevant user device 2, for example a personal computer with a browser, that he has to acknowledge a fault message, for example, and thus, for example, a horn which is connected to the relevant one remote device 1 acoustically signals a fault, wants to switch off.
- the completed form is then sent back to the central control unit 3.
- This takes the corresponding telephone number of the teleservice terminal 1 a from its terminal area and transmits this order to the sub-control unit 5, which is the first in the connection table of the teleservice terminal 1 a.
- the sub-control unit 5 signals the teleservice terminal 1a to request a connection by dialing the number of the teleservice terminal 1a.
- the teleservice terminal 1a recognizes the connection request by evaluating the call information at its fourth interface IV and calls the sub-control unit 5 back. Now the connection is established and the sub-control unit 5 requests the teleservice terminal 1 a to switch off the horn.
- the teleservice terminal 1a After checking the authorization, the teleservice terminal 1a acknowledges the request and ends the connection, the positive acknowledgment signal being sent from the sub-control unit 5 to the central control unit 3 with a time delay. Now the corresponding command is forwarded from the teleservice terminal 1a to the device 1b to be monitored and the horn is extinguished.
- the teleservice terminal 1a recognizes this by evaluating the feedback from the device 1b to be monitored, establishes a connection to the sub-control unit 5 and issues a corresponding error message. If the sub-control unit 5 receives the error message before it has sent a positive time-delayed acknowledgment signal to the central control unit 3, it suppresses the positive acknowledgment signal and only sends the negative acknowledgment signal to the central control unit 3 Central control unit 3 can then acknowledge the user input positively or negatively towards the user.
- the initialization request can also contain the communication routine that is used by the teleservice terminal 1 a to communicate with the device 1 b to be monitored.
- the sub-control unit 5 initializes the teleservice terminal 1a by dialing the telephone number of the teleservice terminal 1a, establishing a connection that queries the unique serial number of the teleservice terminal 1a, the tables during this connection into the corresponding memory areas in the teleservice Terminal 1a transmits and disconnects again.
- the sub-control unit 5 acknowledges this process to the central control unit 3 by transmitting a data record, the first acknowledgment, which contains at least the telephone number of the teleservice terminal 1 a and its serial number.
- the teleservice terminal 1a checks the tables and now in turn establishes a connection to a sub-control unit 5. If this connection is successful, the correct data exchange with the sub-control unit 5 is acknowledged by the latter to the teleservice terminal 1 a, whereupon the teleservice terminal 1 a locks. From this point in time, the teleservice terminal 1a no longer allows a connection to be established from the outside and starts communication with the device 1b to be monitored. A copy of the receipt is transmitted from the sub-control unit 5 to the central control unit 3. Through the transmission together with the first receipt, the central control unit 3 causes to generate a terminal data area for the remote device 1 and to acknowledge this to the relevant user device 2.
- the teleservice terminal 1a discards the received tables and is ready for a new initialization.
- the central control unit 3 If there is no positive acknowledgment or if a negative acknowledgment is received from the sub-control unit 5, the central control unit 3 detects an error state and can, for example, repeat the initialization with changed tables or inform the user of the detected error by a message to a user device 2.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU11294/01A AU1129401A (en) | 1999-09-28 | 2000-09-27 | System for exchanging data |
BR0014357-0A BR0014357A (pt) | 1999-09-28 | 2000-09-27 | Sistema para troca de dados |
EP00972600A EP1222836B1 (de) | 1999-09-28 | 2000-09-27 | System zum austausch von daten |
DE50012030T DE50012030D1 (de) | 1999-09-28 | 2000-09-27 | System zum austausch von daten |
US10/113,624 US6924747B2 (en) | 1999-09-28 | 2002-03-27 | System for exchanging data |
CY20061100309T CY1104992T1 (el) | 1999-09-28 | 2006-03-07 | Συστημα ανταλλαγης δεδομενων |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19946534A DE19946534A1 (de) | 1999-09-28 | 1999-09-28 | System zum Austausch von Daten |
DE19946534.7 | 1999-09-28 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/113,624 Continuation-In-Part US6924747B2 (en) | 1999-09-28 | 2002-03-27 | System for exchanging data |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001024569A1 true WO2001024569A1 (de) | 2001-04-05 |
Family
ID=7923634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/003372 WO2001024569A1 (de) | 1999-09-28 | 2000-09-27 | System zum austausch von daten |
Country Status (10)
Country | Link |
---|---|
US (1) | US6924747B2 (de) |
EP (1) | EP1222836B1 (de) |
CN (1) | CN1210991C (de) |
AT (1) | ATE315320T1 (de) |
AU (1) | AU1129401A (de) |
CY (1) | CY1104992T1 (de) |
DE (2) | DE19946534A1 (de) |
DK (1) | DK1222836T3 (de) |
ES (1) | ES2254244T3 (de) |
WO (1) | WO2001024569A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7239693B2 (en) * | 2003-06-30 | 2007-07-03 | Bellsouth Intellectual Property Corporation | Network-based timed ring suppression |
US7443967B1 (en) | 2003-09-29 | 2008-10-28 | At&T Intellectual Property I, L.P. | Second communication during ring suppression |
JP4264016B2 (ja) * | 2004-03-22 | 2009-05-13 | 株式会社日立製作所 | 通信制御装置及び通信制御装置におけるフィルタリング方法 |
GB2434248B (en) * | 2006-01-12 | 2010-04-14 | Zeiss Carl Smt Ltd | Charged particle beam device |
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EP0629098A2 (de) * | 1993-05-17 | 1994-12-14 | Logica Uk Limited | Haushaltszähler |
WO1998019447A1 (en) * | 1996-10-28 | 1998-05-07 | Tracy Corporation Ii | Telecommunications interface and associated method for collecting and transmitting data |
EP0847163A1 (de) * | 1996-11-29 | 1998-06-10 | Electrowatt Technology Innovation AG | Anordnung zu einer fernmessbaren und/oder fernsteuerbaren Anlage |
WO1999013676A2 (en) * | 1997-09-12 | 1999-03-18 | Williams Wireless, Inc. | Wide area telemetry network |
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US5491473A (en) * | 1993-03-31 | 1996-02-13 | Euro Cp S.A.R.L. | System for remote data collecting, method implemented in this system and data collector device |
US5448230A (en) * | 1993-06-25 | 1995-09-05 | Metscan, Incorporated | Remote data acquisition and communication system |
US5594740A (en) * | 1993-08-27 | 1997-01-14 | Axion Logistics Corporation | Wireless communications application specific enabling method and apparatus |
DE4413281C2 (de) * | 1994-04-16 | 1996-02-22 | Walter Dr Mehnert | Stellungsgeber mit Datenauswerteschaltung |
DE19504493A1 (de) * | 1995-02-12 | 1996-08-14 | Atw Umweltanalytik Gmbh | Verfahren und Vorrichtung zum drahtlosen Meßdatenaustausch |
DE19508891A1 (de) * | 1995-03-11 | 1996-09-12 | Abb Patent Gmbh | System zur Fernmeldung von Anlagenzuständen |
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DE19704492A1 (de) * | 1997-02-07 | 1998-08-20 | Endys Gmbh | Verfahren zum Erfassen und Verarbeiten von mittels Meßeinrichtungen, insbesondere Energiezählern gelieferten Meßdaten leitungsgebundender Medien und/oder Energien sowie System zur Durchführung des Verfahrens |
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-
1999
- 1999-09-28 DE DE19946534A patent/DE19946534A1/de not_active Withdrawn
-
2000
- 2000-09-27 WO PCT/DE2000/003372 patent/WO2001024569A1/de active IP Right Grant
- 2000-09-27 DK DK00972600T patent/DK1222836T3/da active
- 2000-09-27 AU AU11294/01A patent/AU1129401A/en not_active Abandoned
- 2000-09-27 EP EP00972600A patent/EP1222836B1/de not_active Expired - Lifetime
- 2000-09-27 ES ES00972600T patent/ES2254244T3/es not_active Expired - Lifetime
- 2000-09-27 AT AT00972600T patent/ATE315320T1/de active
- 2000-09-27 CN CNB008135223A patent/CN1210991C/zh not_active Expired - Fee Related
- 2000-09-27 DE DE50012030T patent/DE50012030D1/de not_active Expired - Lifetime
-
2002
- 2002-03-27 US US10/113,624 patent/US6924747B2/en not_active Expired - Lifetime
-
2006
- 2006-03-07 CY CY20061100309T patent/CY1104992T1/el unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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EP0629098A2 (de) * | 1993-05-17 | 1994-12-14 | Logica Uk Limited | Haushaltszähler |
WO1998019447A1 (en) * | 1996-10-28 | 1998-05-07 | Tracy Corporation Ii | Telecommunications interface and associated method for collecting and transmitting data |
EP0847163A1 (de) * | 1996-11-29 | 1998-06-10 | Electrowatt Technology Innovation AG | Anordnung zu einer fernmessbaren und/oder fernsteuerbaren Anlage |
WO1999013676A2 (en) * | 1997-09-12 | 1999-03-18 | Williams Wireless, Inc. | Wide area telemetry network |
Also Published As
Publication number | Publication date |
---|---|
DK1222836T3 (da) | 2006-05-22 |
CY1104992T1 (el) | 2009-11-04 |
ATE315320T1 (de) | 2006-02-15 |
US20020113874A1 (en) | 2002-08-22 |
DE19946534A1 (de) | 2001-08-02 |
ES2254244T3 (es) | 2006-06-16 |
CN1377565A (zh) | 2002-10-30 |
AU1129401A (en) | 2001-04-30 |
CN1210991C (zh) | 2005-07-13 |
DE50012030D1 (de) | 2006-03-30 |
EP1222836B1 (de) | 2006-01-04 |
EP1222836A1 (de) | 2002-07-17 |
US6924747B2 (en) | 2005-08-02 |
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