EP0660121B1 - Anordnung von abhängigen Verbrauchszählern - Google Patents

Anordnung von abhängigen Verbrauchszählern Download PDF

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Publication number
EP0660121B1
EP0660121B1 EP94402776A EP94402776A EP0660121B1 EP 0660121 B1 EP0660121 B1 EP 0660121B1 EP 94402776 A EP94402776 A EP 94402776A EP 94402776 A EP94402776 A EP 94402776A EP 0660121 B1 EP0660121 B1 EP 0660121B1
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EP
European Patent Office
Prior art keywords
meter
main
site
counter
dependent
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 - Lifetime
Application number
EP94402776A
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English (en)
French (fr)
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EP0660121A1 (de
Inventor
Christian Holweck
François Vincent
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.)
Itron Soluciones de Medida Espana SA
Schlumberger SA
Original Assignee
Itron Soluciones de Medida Espana SA
Schlumberger SA
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
Application filed by Itron Soluciones de Medida Espana SA, Schlumberger SA filed Critical Itron Soluciones de Medida Espana SA
Publication of EP0660121A1 publication Critical patent/EP0660121A1/de
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Publication of EP0660121B1 publication Critical patent/EP0660121B1/de
Anticipated expiration legal-status Critical
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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
    • G07F15/003—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity for electricity

Definitions

  • the present invention relates to a counter system dependent, in particular a system which links several electricity meters.
  • a customer wishes to have several points of energy delivery, a first point in your apartment and a second point, for example, in his cellar for use freezers, alarms, benefits for vehicles etc. If this second point does not belong to local network of the building or if it is too far away it is necessary find ways to measure the electricity consumed in this point.
  • the use of a second counter located in the winery creates billing issues at the electricity distributor since there will be two subscriptions (one for each meter) for the same customer at the same address. Also, it will be necessary to read each counter.
  • GB Patent 2,183,852 describes a counting system in which all counters in one house, that is to say water, gas and electricity meters communicate by dedicated cables and in which the data on the gas and water consumption are kept by the meter electricity. This system is essentially capable of being used in a single geographic location.
  • the present invention provides a counter system dependents having at least one main counter capable of measure the energy consumed at a first site and provided an interface to read and / or write data on a electronic transaction card with memory, at least one secondary meter capable of measuring the energy consumed at another site with an interface for reading and / or writing data on an electronic transaction card to memory, means of communication comprising a electronic transaction card with memory for transfer data representing the consumption of energy at the site of the secondary meter between the meter main and secondary meter or vice versa and memory means for memorizing each transfer of data which is implemented by means of communication, the memory means being located in the main counter so that a value representing the energy consumption at the site of the secondary meter either held by the main counter.
  • the present invention facilitates energy management by the distributor since all information regarding energy consumption to all sites is held by the main counter and that only the main meter is read, for example for example, by telecommunication or by visual reading of a index or several index showing the energy consumed. Also, at the management level, there is only one subscription for each customer, who receives only one single bill for total energy consumption.
  • the value representing energy consumption by a meter secondary can be accumulated with consumption of energy at the first site by the main meter, a value representing the total energy consumption being held by the main counter and read during the reading of the main counter.
  • the value representing the energy consumption at the site of secondary meter and measurement of energy consumed at the first site can be held and read separately, the total energy accumulation being made at the level of distributor.
  • the invention also applies to a system having a secondary counter and several main counters, that is, where a secondary counter is shared between two consumers. Again, the present invention avoids the use of a secondary meter reading.
  • electronic memory transaction card covers memory cards of any type or shape capable of transfer data including smart cards, magnetic cards, electronic keys including a chip, etc.
  • Using a memory card to connect the meters simplifies data transfer between meters and avoids problems related to the installation of wires or dedicated cables.
  • This embodiment is particularly practical for existing buildings which include several apartments, cellars or parking lots related to the apartments being grouped together different common geographic location, for example, at the base of the building, since the installation of the cables would be complicated and expensive.
  • this allows a dynamic reallocation of secondary meters (cellars or parking lots bought, exchanged or sold) without modification infrastructure.
  • US Patent 4,240,030 describes an electricity meter to prepayment of a known type and in which there is a interface to read magnetic cards to receive credit data. The meter works independently other counters.
  • Document EP 0 534 803 describes a prepayment meter including an interface for reading a key and receiving data credit. The meter does not communicate data from consumption at other meters, we do not receive such data from other counters.
  • the means of communication transfer credit data representing an advance on energy consumption from the main meter to the secondary meter, the power supply to the site of the secondary meter being controlled by the meter secondary depending on the transferred credit data.
  • the secondary counter can include a cut-off device to cut the power supply if the energy consumed exceeds ahead of consumption.
  • This credit system has security advantages, since the energy consumption at the secondary meter site is permitted only when data representing the consumption are transferred and stored by the main counter.
  • a credit system is in particular appropriate when the client is responsible for transfer energy consumption data at the second site, for example, when the data is exchanged by a memory card.
  • the means communication transfer flow data representing the energy consumption measured by the secondary counter from the secondary counter to the main counter.
  • the main counter can understand monitoring means to monitor the interval between each data transfer between the main counter and secondary counter or vice versa and to provide an alarm signal that can be read by the distributor if this interval exceeds a value predetermined.
  • the main meter can understand a real time clock to measure time that has passed since the last data transfer. If the counter does not have a clock, the interval between transfers can be measured in terms of operating time of the counter. For example, the main meter can check if a data transfer has taken place after a number of rate changes.
  • This embodiment also applies to systems credit or debit.
  • a debit system if the customer does not regularly read the consumption measured by the secondary meter, the main meter will provide a alarm signal which can be read by the distributor during reading the main counter.
  • the use of monitoring means allows the detection of fraud if the secondary counter is plumbed, that is to say where the transfer of credits is no longer necessary. In this case, the main counter can still provide a fraud flag which is read during a over.
  • data representing consumption can be transferred from the counter secondary to the main counter, for example, data representing the general status of the meter secondary, the presence of fraud or other attributes of the energy consumed.
  • this data will be sent from the secondary counter to the counter principal, while the data representing the energy consumption are sent from the meter main to the secondary meter.
  • the present invention applies in particular to the case where the main counter and the secondary counter are counters of the same type, that is, they are capable of measure the same physical quantity (electricity, gas etc).
  • the counters of the system are all electricity meters.
  • the invention can be used with other types of meters, that is, meters for gas, water, heat, etc.
  • main and secondary meters are able to receive change orders tariff, means of communication transferring data representing the energy consumption in each price range.
  • the main and secondary must have the same tariff structure, that is to say, the same contract with the distributor.
  • the secondary meter measures simply consumption during each slice tariff, this information being transferred to the meter main during data transfer.
  • the client determines itself the credit that will be distributed to each tranche tariff.
  • the main meter can determine how distribute the credits between each rate bracket, by example, by dividing a global amount entered by the client, based on an estimate of the duration of each tranche tariff or by distributing predetermined credits each time a transfer takes place.
  • Data transferred between meters can represent a measure of energy consumption or, also, a sum of money or credit representing an amount of energy consumed by the meter secondary.
  • the memory card used is dedicated to a single system, for example, by using a word of password which is compared with a password memorized by the main counter and / or the secondary counter, so that it does not work for other systems, to avoid mixing between systems.
  • each counter in the system includes a absolute register which records the absolute consumption of energy measured at the meter site and which can be read directly to verify data transfer.
  • the system includes a main counter 1 located in a site, such as a apartment, a secondary meter 2 located in another site, such as a cellar or garage, and means of communication between meters including a card electronic 3.
  • Main meter and meter secondary measure the voltage and current taken from the network distribution in order to calculate electrical energy consumed at each site.
  • the electronic card is used to transfer credit data between the counter main and secondary meter and to transfer data concerning the status of the secondary counter at main counter. Energy consumption for both locations and the status of the two counters are determined by a reading of the primary counter, for example, by telecommunication or by visual reading.
  • Each counter has an associated conventional circuit breaker 4, 5 and the meter secondary also includes a circuit breaker 6, which is absent or made inactive on the main counter.
  • FIG. 2 shows the structure of a secondary meter used in the system of Figure 1.
  • the main meter has an identical structure, except for the circuit breaker 6.
  • the main components of the meter are a metrological cell 7, of a conventional type, allowing to measure the active power, the energy consumed and the RMS voltage and current, a man / machine interface 8 comprising a keyboard and a display, an interface for 9, which communicates for example via a bus specific, by telephone network or other means 10 with the distributor, a tariff change 11 of a conventional type allowing to determine the current tariff period (for example using radio receiver, clock / calendar, carrier currents etc.), a read / write interface electronic card 12, a control cell for the power 13 which controls the circuit breaker 6, a microcontroller 14 and a pulse transmitter 15 of a conventional type that shows instant consumption of power measured by the meter.
  • the micro-controller 14 includes a clock 18, an EEPROM memory 19 and a RAM memory 20.
  • the communication means of this system include a memory card or electronic card 16, of the card type bank credit card with EEPROM 17 memory, data being read and written to memory by main and secondary meters.
  • main counter 1 that is, consumption of quantities of energy (expressed in kWh) are transferred between the meter and the card, tranche tariff by tariff band, the credit thus acquired by the card being immediately passed on to specific indexes of the main meter, to be billed at the next reading of the main counter.
  • main counter 1 consumption of quantities of energy (expressed in kWh) are transferred between the meter and the card, tranche tariff by tariff band, the credit thus acquired by the card being immediately passed on to specific indexes of the main meter, to be billed at the next reading of the main counter.
  • the credit on the card is emptied into indexes specifics of the secondary meter (in part or in entirety).
  • the secondary counter circuit breaker will remain closed as long as the index corresponding to the current tariff has a content greater than a predetermined value (which can be negative if debt is permitted) thus authorizing the energy consumption.
  • the main counter concentrates the information coming from of the secondary meter and provides the distributor with a overall system status information similar to that provided by a conventional isolated meter (maximum current, number of frauds, overall status word, etc.). So, for the distributor, everything is transparent.
  • All data transfer operations are carried out at using the man / machine interface 8 and the read / write cards 12.
  • the customer can scroll through the different price bands supported by his contract. he then visualizes the credit carried by the card in each of these slices. If he wishes to make a credit transfer (from counter to card, or from card to counter, depending on the type of meter), it can program its amount in kWh and transfer.
  • the main meter can automatically distribute credits calculated in advance in response to a single keystroke by the customer.
  • the transfer is capped, that is to say, the card index cannot exceed a maximum which is a depending on the power subscribed to secondary.
  • the customer can either saturate the card at this ceiling using just one key, or program the amount precisely, according to the operating mode chosen.
  • the transfer is limited to the content of the card.
  • the customer can either transfer using one touch or precisely program the amount.
  • the distributor assigns a main meter and one or several secondary meters to his client with a card with memory.
  • the memory card provided by the distributor contains the description of the system including the numbers standard assigned to the main and secondary meters. It is therefore system specific and cannot work with another.
  • the card has no energy credits.
  • the indexes absolute of the main and secondary counters are statements, if this was not done at the end of the contract previous, or in case of very first contract. These changes constitute a reference in the event of an incident or customer dispute during operation.
  • the distributor collects the card. he reads the indexes of the main counter and of the secondary counter (s). Any credit that remains in the secondary counter is reset to zero and the balance (positive or negative) is reported on a global invoice for all counters. Any credit on the card is also deducted from the general bill.
  • Figure 3 shows the block structure of the indexes data that are present in the EEPROM memories of main and secondary meters and electronic card.
  • Each meter has an encrypted identification number 30, 31. This number is unique and there is therefore no other counter with the same number.
  • the card knows the counter indications, these data being stored 32 on the EEPROM memory of the card. Before any transaction, the agreement between the identifications of the card and the counter is checked. This concordance allows both authorize (or reject) the transaction and determine the type of transaction (a transfer between the main counter and the card, or between the card and the sub-meter).
  • Each counter has six counting indexes 33, 34 which measure the consumption at the site of this meter in all possible price bands. These indexes have a resolution of 1 Wh; they go back to zero as soon as they exceed the value 999 999 999 Wh. These indexes are “absolute” because it is impossible to reset them; they therefore reflect the total consumption seen by each counter during its existence. They are "clean” because they do not reflect that the consumption of the meter considered.
  • the main meter also has flow indexes absolute 35. They are impossible to reset, except in overflow. Their resolution is 1kWh and their maximum of 999 999 kWh.
  • indexes reflect credit total transferred to card (all cards having existed since the meter was installed) per rate bracket, this credit in the sense of the card being a debit from the meter main.
  • the main counter memorizes each transfer of credit to the secondary meter. This is the total of own indices and debit indices which will be invoiced to customer. These summations can be done either at the level of the counter during the reading, either at the terminal of over.
  • the electronic card also includes indexes of Vote 36 which contains the total credit transferred from the main counter to the card, minus the credit transferred on the secondary meter. Their resolution is 1kWh. They are capped in order to limit the risks in the event of loss, theft or destruction of the card and to force the customer to leave it serve regularly. In the operating mode using one touch the indexes will be filled until ceiling or completely emptied for each transfer. The indexes are always positive, that is, the card is not never carrying a debit.
  • relative own indices 37 are provided. Any credit transfer from the card to the counter increases their values and decreases correspondingly the values of the credit indexes 36 of the card. Their resolution is 1Wh. As described above they can take negative values up to a debt ceiling. They are decremented in synchronism with the incrementation absolute own indexes 34, as the customer consumption.
  • the relative index for the period current tariff i.e. the index which is decremented, controls the distribution circuit breaker 6 (via the control cell 13) as well as a warning signal debt (internal on the display or external, by example, using a buzzer, a lamp etc.).
  • the organ of circuit breaker 6 can be controlled by the control cell 13 to limit power in case of low debt or to cut power in the event of high debt.
  • Each counter also includes status indexes own 38, 39 which contain the data devoted to the monitoring of each meter to ensure proper operation of the devices and to detect fraud.
  • the nature of the status indexes and their typical size are shown in more detail in Figure 5.
  • the status of the secondary counter contained in the status index 39 is conveyed by the secondary status indexes 40 of the card electronic to the main meter, or it is held by status indexes 41 dedicated to the secondary counter. AT each reading, the statuses of the two counters are read and analyzes.
  • the distributor's access to the status of the secondary meter is subject to transfer of information from secondary to main, that is to say the use that the customer makes of his card.
  • the credit conveyed by the card being capped the client must regularly make transfers (by example once a month) if he wants to draw energy from secondary. But in case of fraud, for example if the secondary counter is unplugged and hacked, this transfer of credit is no longer required. Secondary status no longer communicated in the main, fraud would be undetectable. For overcoming this problem we use time measurement between two updates of the secondary status.
  • the embodiment described above relates to a system where credits are transferred from the main counter to secondary counter. Another achievement is also possible, where debit data is transferred from secondary counter to the main counter, and where the indexes own relative of the secondary meter are increased in synchronism with the absolute own indexes, and are emptied by each data transfer etc.
  • the system can include several counters secondary, the main counter having several indexes of absolute flow to store consumption data for secondary meters.
  • the system can understand multiple master counters that share a secondary counter, or several counters main and several secondary counters.
  • the system can also be used with other types meters, i.e. with gas, water, heat, etc.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Beverage Vending Machines With Cups, And Gas Or Electricity Vending Machines (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Working-Up Tar And Pitch (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Claims (10)

  1. System zusammenhängender Zähler mit :
    mindestens einem Hauptzähler (1), der geeignet ist, die an einem ersten Ort verbrauchte Energie zu messen und mit einer Schnittstelle (12) ausgestattet ist, um Daten auf einer speicherfähigen Karte für elektronische Transaktionen abzulesen und/oder einzuschreiben,
    mindestens einem Nebenzähler (2), der geeignet ist, die an einem anderen Ort verbrauchte Energie zu messen und auch mit einer Schnittstelle (12) ausgestattet ist, um Daten auf einer speicherfähigen Karte für elektronische Transaktionen abzulesen und/oder einzuschreiben,
    Kommunikationsmitteln mit
    einer speicherfähigen Karte für elektronische Transaktionen (3, 16), um die den Energieverbrauch des Ortes des besagten Nebenzählers darstellenden Daten zwischen dem Hauptzähler und dem besagten Nebenzähler oder umgekehrt zu übertragen, und
    einem Speicher (20), um jede von den besagten Kommunikationsmitteln ausgeführte Datenübertragung zu speichern, wobei der besagte Speicher so im besagten Hauptzähler angelegt ist, dass ein den Energieverbrauch des Ortes des Nebenzählers darstellender Wert im besagten Hauptzähler gespeichert wird.
  2. System zusammenhängender Zähler nach Anspruch 1, in dem die besagten Kommunikationsmittel geeignet sind, Kreditdaten, welche einen Vorschuss des Energieverbrauches darstellen, vom besagten Hauptzähler zum besagten Nebenzähler zu übertragen, wobei die Energieversorgung des besagten Nebenzählers vom besagten Nebenzähler in Abhängigkeit von den besagten übertragenen Kreditdaten kontrolliert wird.
  3. System zusammenhängender Zähler nach Anspruch 2, in dem der besagte Nebenzähler ferner ein Ausschaltorgan (6) umfasst, um die Energieversorgung des besagten Nebenzählers auszuschalten, wenn die an dem Ort des besagten Nebenzählers verbrauchte Energie den besagten Verbrauchsvorschuss überschreitet.
  4. System zusammenhängender Zähler nach Anspruch 1, in dem die besagten Kommunikationsmittel ebenfalls geeignet sind, Soll-Daten, welche den Energieverbrauch des besagten Nebenzählers darstellen, vom besagten Nebenzähler zum besagten Hauptzähler zu übertragen.
  5. System zusammenhängender Zähler nach einem der Ansprüche 1 bis 4, in dem der besagte Hauptzähler auch Überwachungsmittel (42, 43) aufweist, um das Intervall zwischen jeder Datenübertragung zwischen dem besagten Hauptzähler und dem besagten Nebenzähler oder umgekehrt zu überwachen, und um ein Warnsignal zu liefern, wenn dieses Intervall einen vorbestimmten Wert überschreitet.
  6. System zusammenhängender Zähler nach einem der Ansprüche 1 bis 5, in dem die besagten Haupt- und Nebenzähler geeignet sind, unter Anwendung eines Tarifänderungsorgans (11), Tarifänderungsbefehle zu empfangen, wobei die besagten Kommunikationsmittel geeignet sind, die den Energieverbrauch in jeder Tarifstufe darstellenden Daten zu übertragen.
  7. System zusammenhängender Zähler nach einem der Ansprüche 1 bis 6, in dem die besagte Speicherkarte diesem System bestimmt ist, so dass sie nicht für andere Systeme zusammenhängender Zähler einsetzbar ist.
  8. System zusammenhängender Zähler nach einem der Ansprüche 1 bis 7, in dem jeder Zähler des Systems ein absolutes Register (33, 34) umfasst, welches den absoluten am Ort des besagten Zählers gemessenen Energieverbrauch erfasst, und das unmittelbar abgelesen werden kann, um die Datenübertragung zu überprüfen.
  9. System zusammenhängender Zähler nach einem der Ansprüche 1 bis 8, in dem der besagte Hauptzähler und der besagte Nebenzähler geeignet sind, dieselben physikalischen Mengen zu messen.
  10. System zusammenhängender Zähler nach Anspruch 9, in dem die besagten Zähler Elektrizitätszähler sind.
EP94402776A 1993-12-23 1994-12-05 Anordnung von abhängigen Verbrauchszählern Expired - Lifetime EP0660121B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9315539 1993-12-23
FR9315539A FR2714459B1 (fr) 1993-12-23 1993-12-23 Système de compteurs dépendants.

Publications (2)

Publication Number Publication Date
EP0660121A1 EP0660121A1 (de) 1995-06-28
EP0660121B1 true EP0660121B1 (de) 2003-08-27

Family

ID=9454304

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94402776A Expired - Lifetime EP0660121B1 (de) 1993-12-23 1994-12-05 Anordnung von abhängigen Verbrauchszählern

Country Status (4)

Country Link
EP (1) EP0660121B1 (de)
AT (1) ATE248375T1 (de)
DE (1) DE69433084D1 (de)
FR (1) FR2714459B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2803663B1 (fr) * 2000-01-07 2002-05-03 Schneider Electric Ind Sa Dispositif de controle d'energie a prepaiement permettant d'effectuer un relever
EP1477942A1 (de) * 2003-05-14 2004-11-17 Giovanni Garra Elektrischer Leistungsmesser mit Chipkarte zur Einschaltung der Stromversorgung
SE529371C2 (sv) * 2005-03-10 2007-07-17 Bjoern Soerdin Snabbkopplingsenhet för elmätare med inbyggd brytfunktion.
EP1981055A1 (de) * 2007-04-13 2008-10-15 Abb Ag Installationsschalter und Stromzählersystem

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240030A (en) * 1978-12-14 1980-12-16 Bateman Jess R Intelligent electric utility meter
GB2183852A (en) * 1985-11-27 1987-06-10 Triad Communications Inc Utility meter
EP0534803B1 (de) * 1991-09-27 1997-02-05 Schlumberger Industries Limited Vorausbezahlungssystem

Also Published As

Publication number Publication date
EP0660121A1 (de) 1995-06-28
FR2714459B1 (fr) 1996-01-19
DE69433084D1 (de) 2003-10-02
FR2714459A1 (fr) 1995-06-30
ATE248375T1 (de) 2003-09-15

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