CA1330579C - Utility metering - Google Patents

Utility metering

Info

Publication number
CA1330579C
CA1330579C CA 609020 CA609020A CA1330579C CA 1330579 C CA1330579 C CA 1330579C CA 609020 CA609020 CA 609020 CA 609020 A CA609020 A CA 609020A CA 1330579 C CA1330579 C CA 1330579C
Authority
CA
Canada
Prior art keywords
zones
consumption
utility
group
zone
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 - Fee Related
Application number
CA 609020
Other languages
French (fr)
Inventor
Derek Robert Marsden
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MARSDEN DEREK ROBERT
Original Assignee
Derek Robert Marsden
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from GB888820008A external-priority patent/GB8820008D0/en
Priority claimed from GB8911661A external-priority patent/GB8911661D0/en
Application filed by Derek Robert Marsden filed Critical Derek Robert Marsden
Application granted granted Critical
Publication of CA1330579C publication Critical patent/CA1330579C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00Commerce
    • G06Q30/04Billing or invoicing
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • H02J3/144Demand-response operation of the power transmission or distribution network
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/50The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads
    • H02J2310/56The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads characterised by the condition upon which the selective controlling is based
    • H02J2310/58The condition being electrical
    • H02J2310/60Limiting power consumption in the network or in one section of the network, e.g. load shedding or peak shaving
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225Demand response systems, e.g. load shedding, peak shaving
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20End-user application control systems
    • Y04S20/222Demand response systems, e.g. load shedding, peak shaving
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S50/00Market activities related to the operation of systems integrating technologies related to power network operation or related to communication or information technologies
    • Y04S50/12Billing, invoicing, buying or selling transactions or other related activities, e.g. cost or usage evaluation

Abstract

ABSTRACT
In the method of monitoring the consumption of utilities in business premises, the premises are notionally divided into zones 10. Each contains a utility load 110 and metering means 114 to record consumption within the zone 10. Zones are notionally combined into groups. Analysis means 120 are provided to receive consumption data from the zones of a group to calculate total utility consumption within the group and to conduct further analysis on the consumption data. The analysis means 120 also supplies control data to the zones to control utility consumption.

Description

~ 1330~79 Utility Metering The present invention relates to utility metering.

BACKGROUND TO THE INVENTION :

The use of utilities has hitherto been metered by ~.
the utility supplier, in order to ensure that the consumer (whether industrial or domestic) is correctly charged for any utility supplied to the consumer's premises. :
~ ' .

The present invention seeks to enable the use of utility metering data by the consumer, especially industrial consumers, to allow the consumer to ensure greater efficiency in the use of the utilities.

SUMMARY OF THE INVENTION :~
~'.

According to the invention, there is provided a method of monitoring the consumption of utilities in business premises, in which the premises are notionally divided into zones, each of which contains at least one , .

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133~7~
` 2 ] utility load to be supplied, utility metering means are associated with each zone, to record consumption within the associated zone, the zones are notionally combined into groups, each group including all of those zones which contribute to the provision of a specified product or service, and analysis means are provided and are operable in relation to each group to:

(i) Receive utility consumption data relating to ~ :
t~ the zones of that group and to combine the received data ~-~
to provide data concerning the total measured utility .
consumption within that group;

(ii) Store asset data relating to the zones of ]5 that group and concerning the expected utility consumption within each of the zones under each of a set of operating conditions, and combine asset data relating to the zones of that group to provide data concerning the total expected utility consumption within that group;

2n (iii) Compare total expected utility consumption :~

data with total measured utility consumption data; and (iv) Supply control data to a zone or zones ~.

within that group to enable utility consumption to be controlled in dependence on the result of the comparison. -,` .

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l Preferably the zones are notionally combined by providing the analysis means with data identifying the zones which constitute each group. The identifying data may preferably be changed, whereby the groups may be re-organised.

Each zone may include loads for a plurality of utilities, and the utility metering means associated with each zone may record the consumption of each utility within the associated zone. The analysis means may be used to separately combine data relating to the consumption of each utility within a group of zones, to i~
provide data relating to the total consumption oF each utility within each group.

The analysis means may be used to combine all data ~ i relating to consumption of any utility within a group of ;~
zones, to provide data relating to the total utility ~-consumption of each group. The analysis means may be operable to combine consumption data with tariff data to provide cost data relating to utility consumption costs.

There may further be provided additional utility metering means used to record quantities of a utility supplied to a zone or zones, and the analysis means may be used to compare the quantity of the utility suoplied 1~
I`
1 i.. I
~ :.

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~:3~7~
~ - 4 -1 to the zone or zones and the measured utility consumption within that zone or those zones, to detect losses. The detected losses may be apportioned to the zones in which the losses occur, in proportion to the measured consumption within those zones, the apportioned losses ;~
being thereafter considered as additional consumption -~
within the zones to which the losses are apportioned.
;",'''' '' ' The invention also provides apparatus for - ~.
monitoring the consumption of utilities in business ~-premises, co~prising utility metering mGans associated with each notional zone of the premises, each of the zones containing at least one utility load to be supplied, the utility metering means being operable to ~ ~-record consumption within the associated zone, and analysis means operable to analyse consumption data relating to the zones of a group of zones into which said zones are notionally divided, each notional group including all of those zones which contribute to the provision of a specified product or service, and the analysis means being further operable in relation to each group to~
.
(i) Receive utility consumption data relating to the zones of that group and to combine the received data to provide data concerning the total measured utility ' ~

133~7~ -l consumption within that group;

(ii) Store asset data relating to the zones of that group and concerning the expected utility consumption within each of the zones under each of a set of operating conditions, and combine asset data relating to the zones of that group to provide data concerning the total expected utility consumption within that group;

(iii) Compare said total expected utility consumption data with total measured utility consumption data; and (iv) Supply control data to a zone or zones within that group to enable utility consumption to be controlled in dependence on the result of the comparison.

Preferably the analysis means comprise means for storing data identifying the zones which are notionally combined to constitute each group. The identifying data may preferably be changed, whereby the groups may be re-organised.

Each zone may include loads for a plurality of utilities, the utility metering means associated with each zone recording the consumption of each utility 1330~79 - 6 - ;

1 within the associated zone. The analysis means may be operable to separately combine data relating to the --consumption of each utility within each group of zones, to provide data relating to the total consumption of each utility within each group. The analysis means may be operable to combine all data relating to consumption of -any utility within a group of zones, to provide data relating to the total utility consumption of each group.
:
The analysis means may be operable to combine consumption data with tariff data to provide cost data relating to utility consumption costs.

There are preferably provided additional utility metering means operable to record quantities of a utility lS supplied to a zone or zones, and the analysis means may be operable to compare the quantity of the utility supplied to the zone or zones and the measured utility consumption within that zone or those zones, to detect losses. Preferably the analysis means is operable to apportion detected losses to the zones in which the losses occur, in proportion to the measured consumption :

. .; ., . . ~ .. . - .. . . .

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1330~79 1 within those zones, the apportioned losses being thereafter considered as additional consumption within the zones to which the losses are apportioned.

BRIEF DESCRIPTION OF THE DRAWIN~S

Proposals for the implementation of the present invention will now be described in more detail, by way of example only, and with reference to the accompanying drawings in which:

Fig. 1 is a schematic representation of a business premises on three sites;

Fig. 2 shows one zone in more detail; and Figs. 3A and 3B indicate alternative implementations of the ideas.

DESCRIPTION OF PREFERRED_EMBODIMENTS
' Fig. 1 schematically represents the premises of a business having three sites of operation. Each site is divided notionally into a series of zones 10, shown for , ,~,. ~ . . . ~ . ~ , , , - ~ - .

, ,; ~
.....

` - 8 - 1330~79 1 convenience as square zones on a grid of 9 columns and 16 rows. Each zone includes at least one machine or other utility load (not shown in Fig. 1). Zones are notional ~:
only, and are therefore not necessarily square, nor are S they necessarily all of equal shape or size. Each zone has associated with it utility metering means (not shown in Fig. 1) for metering the consumption of utilities within that zone.
~ ~:

A zone 10 is shown in more detail in Fig. 2. The zone includes one or more utility loads 110, such as machines. These are supplied with utilities from a utility supply 112 through utility metering means 114.
Fig. 2 shows the utility supply 112 supplying three utilities, but different numbers of utilities could be supplied in practice, and each load 110 may not require all of the utilities supplied to the zone 10.

The meter 114 is connected to a computer 116 local to the zone and which has an associated store 118 for recording metered consumption data produced by the meter 114.

The computer 116 is also connected to the load 110 to allow the computer 116 to control the load 110, such as by setting the maximum operating level of the load 133Q~7~

1 1 0 . :~

In common with the computers in all other zones, ~ .
the computer 116 is in communication with a central analysis computer 120. Communication may be direct, or may be through a group computer 122 in communication with computers in several zones, to provide a buffer between the computers 116 and the central computer 120. The group computer 122 may have associated memory 124 to facilitate its use as a buffer.

Communication between the computer 120 and the computers 116 is two-way, so that the computer 120 may receive consumption data from the zones, and may send control data to the zones to control consumption in dependence on the result of the analysis carried out by the computer 120, to be described.

Associated with the central analysis computer 120, are various stores of data for use in the analysis. Zone grouping data is stored at 126 to identify the selection of zones 10 which are to be treated as a group for the purposes of the analysis. A store 128 is used by the central computer 120 for storing metered consumption data received from the zones. The store 128 may store raw data and also processed data.

, ~

10 13 3 0 ~ 7 9 ~ ~

l Tariff data is stored at 130 to allow the computer ;
to determine the cost of the utilities consumed, by combining tariff data and consumption data. ~-.

Asset data is stored at 132 and coneerns the expected utility consumption within each zone 10 under each of a set of operating conditions (such as full load, partial load etc.). Appropriate input devices are provided at 134 to allow the computer 120 to be controlled, and also to allow data stored at 126, 130 and 132 to be modified as required. Appropriate output means are provided at 136 for the output of the results of the analysis.

The apparatus has been shown highly schematically in Fig. 2 to indicate that many variations are possible in the practical implementation of a system like the one described. Many aspects will depend on particular choices of hardware-and may also depend on other factors of the operating conditions.
~ : ' Returning to Fig. 1, the grey shading 12 indicates the notional combining of zones into groups, each group including all of those zones which contribute to the provision of a specific product or service. In the example shown, site 3 is responsible for finishing the ;~

'~

133057~ ~

l manufacture of a product which is made from sub-products manufactured at site 1 and at site 2, respectively. Raw materials for one sub-product enter site 1 at zone (1, 1) (indicated by the arrow SP1) and proceed along the shaded line of zones until leaving site 1 from zone (9, 12). :
The first sub-product then enters site 3 at zone (3, 1).

Raw materials for the secorld sub-product enter site 2 at zone (1, 1) (indicated by the arrow SP2) and leave at zone (9, 7) to enter site 3 at zone (1, 1). The two sub-products are combined at zone (2, 3) of site 3 snd ~
are further processed into the finished product which is ~`
ready to leave site 3 from zone (2, 16).

The utility metering means 114 associated with each zone of the 3 sites continuously produces consumptlon data for the or each utility consumed in the zone and ~ :
this data may be stored or passed to the central analysis means (the computer 12û). Consumption data is preferably sent with other information which characterises that data. The characteriæing information may indicate the following:

(a) The date and time on which the consumption data is collected.

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1~ 1 3 3 ~ ~ 7 9 ;:

l (b) The site in which the zone is located. '~

(c) Identification of any product of which the ' product manufactured at the zone constitutes a -~
sub-product.

(d) Identification of personnel responsible for the operation of machinery or other utility loads in the zone. Personnel may be identified at several layers of a management structure.
.~.'';' (e) Identification of the zone from which the data ~
was collected. ' ~f) Identification of a part of the zone fro'm which the data was collected, if desired. ~;

(g) Whether the utility load in the zone was operating at the time or data collection.

Data included in each batch transmitted to or from :~
the zone may include the following sorts of data: ;

~ ::~ ' .:;:, a) Data tranflmitted from the central computer 120 ,to the computer 116 associated with a particular zone, ` 133~79 l b) Data transmitted from the zone to the central computer 120, including utility consumption data c) Instructions sent to the zone computer 116 from the central computer 120, such as instructions to control the rate of operation of a machine, or instructions to turn a machine on or off.

Information of this type received from all the zones of all the sites of the business can be analysed by the computer 120 in many different ways, by selecting some or all of the constituents of the data. For instance, data relating to electricity consumption in ;
each zone of the group of zones used for the manufacture of a particular product can be added together to provide a figure for the total electricity consumption associated with the production of that product. Similar calculations can be conducted in relation to other utilities, or the total consumption of all utilities for that group can be calculated to provide a figure for the total cost of utility consumption as an overhead in the production of that product.
:
As has been described, it is additionally preferred for the analysis means 120 to have a store containing asset data. This asset data gives the expected utility : `

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- 133~57~

l consumption in the associated zone according to parameters such as the rate of operation of machinery, or the rate of throughput of products. By performing similar operations on the asset data and the consumption data, it is possible for the analysis means 120 to make a comparison between the predicted consumption which should -be occuring, and the consumption which is actually occuring. This allows an early warning to be given if the actual consumption strays significantly from the expected consumption. The analysis means 120 is able to send instructions back to the zones in order to control machinery and modify the consumption in order to increase the efficiency of utility consumption, if any inefficiencies are detectable from these comparisons.

It is al~o possible to provide predictions of expected utility consumption in selected conditions of operstion of the utility loads. This facility provides a helpful management tool by enabling the effects of proposed changes in the production techniques to be studied in advance. ~;

Figs. 3A and 3B show two extensions of the ideas outlined above, and which take account of losses which occur in the distribution or usage of the utilities.

~, . . .... ~ . -:

133~7 ~

l In each case, monitoring units are included at various points in the distribution network of each utility to measure the amount of utility actually ~`
supplied to that point. This figure can be compared with the actual consumption metered in the zones supplied through that point in order to determine any losses which may be occuring in the distribution network.

In Fig. 3A, the utility is supplied to the premises at a single point A from which the utility is distributed to all of the zones on the premises. A single monitoring device 14 at A records the amount of the utility supplied to the premises and supplies the information to the analysis means 120. Thus, the total losses which occur between the point A and the utility loads in the zones can be determined.
.' In a more sophisticated arrangement shown in Fig. 3B, separate loss monitoring apparatus 16 is supplied for each column of zones. It is therefore possible to determine the losses which occur in any single column so that, for instance, appropriate action can be taken if losses are excessively high in one column, in relation to losses in another column. Again, this information is reported to the analysis means.
. . ~ ,.^~.,~

!' - 16 - 1330S7~
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1 In each case, the losses which are detected are attributed to the zones in which the losses may be occuring, in proportion to the metered consumption in those zones. Thus, if one zone is metered as consuming a utility at twice the rate of another zone, twice as much :
of the loss will be apportioned to it. Thereafter, the apportioned losses are treated as additional consumption by those zones, so that calculations such as the total ;~
utility consumption in producing a product can correctly reflect associated losses as well as intentional utility usage.

.. :
It will be appreciated that because each zone could include more than one utility load, it may be convenient or desirable for the zone to be broken down into subzones, each containing only one utility load, and having associated utility metering means and loss monitoring equipment. Data would then be sent from the sub-zones to control apparatus associated with the whole zone, for onward transmission from the zone to the analysis means. In another arrangement which i8 ~ .
envisaged, as outlined above, information moves between zones and the analysis means through a group computer associated with a group of zones. Thus, equipment in ~
each zone communicates only with the group computer, and ~-the analysis means communlcates with the group computer :

.~

1 rather than directly with the apparatus within each zone.
The group computer can therefore be programmed to perform preliminary analysis on the data collected from the ~-zones. The group computer may also be programmed and S provided with memory sufficient to allow it to run routines for interrogating zones on a regular basis. The provision of storage at the group computer reduces the risk of data being lost as a result of faulty transmission between the group computer and the analysis means.

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Claims (18)

1. A method of monitoring consumption of utilities in business premises, said premises being notionally divided into zones, each of said zones containing at least one utility load to be supplied, utility metering means are associated with each zone, said utility metering means being operable to record consumption within the associated zone, said zones are notionally combined into groups, each of said groups including all zones which contribute to the provision of a specified product or service, and analysis means are provided and are operable in relation to each group to:

(i) Receive utility consumption data relating to zones of that group and to combine said received data to provide data concerning total measured utility consumption within that group;

(ii) Store asset data relating to zones of that group and concerning expected utility consumption within each said zone under each of a set of operating conditions, and combine asset data relating to the zones of that group to provide data concerning the total expected utility consumption within that group;

(iii) Compare said total expected utility consumption data with total measured utility consumption data; and (iv) Supply control data to a zone or zones within that group to enable utility consumption to be controlled in dependence on the result of said comparison.
2. The method of claim 1, wherein said zones are notionally combined by providing said analysis means with data identifying zones which constitute each group.
3. The method of claim 2, wherein said identifying data may be changed, whereby the groups may be re-organised.
4. The method of claim 1, wherein each zone includes loads for a plurality of utilities, said utility metering means associated with each zone recording consumption of each utility within the associated zone.
5. The method of claim 4, wherein said analysis means separately combine data relating to consumption of each utility within each group of zones, to provide data relating to the total consumption of each utility within each group.
6. The method of claim 1, wherein said analysis means combines all data relating to consumption of any utility within each group of zones, to provide data relating to total utility consumption in each group.
7. The method of claim 1, wherein said analysis means combines consumption data with tariff data to provide cost data relating to utility consumption costs.
8. The method of claim 1, wherein additional utility metering means are used to record quantities of a utility supplied to a zone or zones, and said analysis means are used to compare quantities of the utility supplied to said zone or zones and measured utility consumption within that zone or zones, to detect losses.
9. The method of claim 8, wherein detected losses are apportioned to zones in which said detected losses occur, in proportion to the measured consumption within those zones, the detected losses being thereafter considered as additional consumption within the zones to which the losses are apportioned.
10. Apparatus for monitoring consumption of utilities in business premises, said premises being notionally divided into zones, each said zone containing at least one utility load to be supplied, said apparatus comprising utility metering means associated with each zone of the premises and operable to record consumption within said associated zone, and further comprising analysis means operable to analyse consumption data relating to the zones of a group of zones into which said zones are notionally divided, each notional group including all said zones which contribute to the provision of a specified product or service, and said analysis means being further operable in relation to each group to:

(i) Receive utility consumption data relating to zones of that group and to combine said received data to provide data concerning total measured utility consumption within that group;

(ii) Store asset data relating to zones of that group and concerning expected utility consumption within each zone of said group under each of a set of operating conditions, and combine asset data relating to the zones of that group to provide data concerning the total expected utility consumption within that group;

(iii) Compare said total expected utility consumption data with total measured utility consumption data; and (iv) Supply control data to a zone or zones within that group to control utility consumption in dependence on the result of said comparison.
11. The apparatus of claim 10, wherein said analysis means comprises means for storing data identifying zones which constitute each group.
12. The apparatus of claim 11, wherein said identifying data may be changed, whereby said groups may be re-organised.
13. The apparatus of claim 10, wherein each zone includes loads for a plurality of utilities, and said utility metering means associated with each zone records consumption of each utility within said associated zone.
14. The apparatus of claim 13, wherein said analysis means is operable to separately combine data relating to consumption of each utility within each group of zones, to provide data relating to total consumption of each utility within each said group.
15. The apparatus of claim 10, wherein said analysis means are operable to combine all data relating to consumption of any utility within each said group of zones, to provide data relating to the total utility consumption of each said group.
16. The apparatus of claim 10, wherein said analysis means are operable to combine consumption data with tariff data to provide cost data relating to utility consumption costs.
17. The apparatus of claim 10 further comprises additional utility metering means operable to record quantities of a utility supplied to a zone or zones, said analysis means being operable to compare quantities of utility supplied to said zones and measured utility consumption within said zones, to detect losses.
18. The apparatus of claim 17, wherein said analysis means is operable to apportion detected losses to zones in which said losses occur, in proportion to measured consumption within those zones, said detected losses being thereafter considered as additional consumption within zones to which said losses are apportioned.
CA 609020 1988-08-23 1989-08-22 Utility metering Expired - Fee Related CA1330579C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB888820008A GB8820008D0 (en) 1988-08-23 1988-08-23 Data transmission system
GB8820008.4 1988-08-23
GB8911661A GB8911661D0 (en) 1989-05-20 1989-05-20 Utility metering
GB8911661.0 1989-05-20

Publications (1)

Publication Number Publication Date
CA1330579C true CA1330579C (en) 1994-07-05

Family

ID=26294313

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 609020 Expired - Fee Related CA1330579C (en) 1988-08-23 1989-08-22 Utility metering

Country Status (8)

Country Link
US (1) US5404136A (en)
EP (1) EP0431014B1 (en)
JP (1) JPH04501194A (en)
AU (1) AU622215B2 (en)
CA (1) CA1330579C (en)
DE (1) DE68906894T2 (en)
GB (1) GB2239993B (en)
WO (1) WO1990002379A1 (en)

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