SA08290390B1 - Prepayment system for energy meters using contactless intelligent cards with automatic device of energy shut off - Google Patents

Abstract

Abstract: The present invention relates to the use of a meter completely integrated in one unit, fully covered and not connected to the outside, with a prepayment system and a more efficient way to control the electric power supply and to obtain excellent information from the meter by means of contactless smart cards ). Figure 1

Description

Prepayment system for energy meters using contactless intelligent cards with automatic device of energy shut off Full description Background This invention refers to a prepayment system ) for energy meters (dsl el) and in particular a more efficient system and method for controlling the electric power supply and for obtaining clear information from the meter by using contactless intelligent cards. Hagas Technology has been devised for modern pre-payment systems in order to supply public services such as: electricity, water, or gas, and this aims to overcome some of the inconveniences related to systems Collection 0 Conventional A type of prepayment system is designed in which the supply of electricity (water or gas) is purchased directly from a central station and information about the quantity purchased is then communicated to the customer site where the supply is consumed. At the customer's point of consumption (domestic place; establishment; (jie etc.) a meter is installed and this device receives the information for the pre-payment communication Ve and confirms the quantity purchased with the central station. Typically a meter is installed Electricity is outside the workplace or home and a terminal unit that reads prepayment information is placed with the meter or connected to it by cable or by cables supplying electric power to the installed meter, instead of being placed indoors. Installation and high cost Another “0” problem with this prepaid system is that it does not allow for two-way communication regarding consumption information; how credit is used; where or which meters are using credit; and information about attempted tampering. The meter is another well-known type of prepayment system that also relies on purchasing electricity supplies directly from a predetermined sales point, where information about the quantity of supplies purchased is stored in a magnetic card or in contact smart cards. This type of prepayment system uses an electronic meter that includes a card reader or magnetic switch and a series of additional control devices to manage the electric power supply operations. ©

An example of the type of prepayment system mentioned above is what is disclosed in US Patent No. 47400746 “Intelligent Electric Utility Meter” granted to Jess Batterman 18. Baterman and co at 1 Dec 019760 which describes a smart meter that uses an insertable magnetic card to regulate

0 power supply. US Patent No. 4,679,794 titled “Prepayment metering system” awarded in December VT VAAL describes a system that uses a smart card and additional crediting elements to regulate the power supply. USA Patent No. 1.47315750 “Prepayment metering system using encoded purchase cards” granted on March 11, 14 to Joseph Sloan discloses Joseph W.Sloan for a system that uses barcoded magnetic stripe cards to transmit purchase transaction information from the collection desk to the consumer.US Patent No. 798897 Pre-paid commodity system 00 issued January VAAL granted to CIC Systems, Inc. of a prepaid vending card system for the supply of electricity, water, gas, etc. US Patent No. 077 describes the granted Intelligent utility system of Utility Systems Corp: of Vv February 98490; a type of counter that is an external Ye data processor with a display used as a read-out for the combination and retrieval of information; and a payment-card-to-card reader in LCD monitors (LCD) Jill located inside the owned eye. US Patent No. 49089714 titled “Commodity metering systems” granted to Schlumberger Electronics (UK) Ltd. discloses

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on March 11, 9460; For a pre-payment measuring system that includes an automatic key and a slot to insert this electronic key. US Patent No. 20475649 titled “Prepayment metering system “using encoded purchase cards from multiple locations” granted to CIC Systems, A snc, © September 1597 concerned a system of prepayment for supplies of public services using magnetic stripe cards. US Patent No. 21,718,577, Ci, for a Modular electricity meter arrangement describing "having remotely controllable switch" granted to Siemens Measurements Ltd., Sept. 1, VAY Meter format incorporating a prepaid standard unit containing 0 slots for inserting AS cards, memory cards, etc. US Patent No. 77 “Measurement System for Prepaid Energy with Smart Card Interconnections” describes Prepayment energy metering system with two-way smart card “communications” given to David M.

Yee co-owners in; Mars 0007 A prepaid energy metering system that uses a smart card to provide a data exchange communication system to send 1 customer information to the service provider.

however; The defect in this type of prepaid counters equipped with a reader for magnetic cards or contact smart cards is that when the reader is exposed to receiving prepaid cards; They become vulnerable to damage (intentional or unintentional) by the user or as a result of salty weather or high relative humidity. Another problem arises when the © card reader is connected to the meter via a cable; Because the cable is also subject to damage. When the reader is in the counter. The meter must undergo significant physical changes that increase its size and make it vulnerable to damage by exposing part of it to the environment. Regardless it becomes non

In line with the connections currently on the market, such as type 58 or A connections, there is still another type of prepayment system to control the supply of electrical energy. Ye systems that include methods to cut off the supply when the balance runs out. Among Jie AB this system is disclosed in US Patent No. 0909089 titled “Communal metering system” granted to Andreas J.090 and collaborators; In YA September 1999 lly describes a metering system that supplies

prepaid electricity to many customers; Where the power supply is cut off remotely. The disadvantage of this type of prepayment system for controlling the electric power supply is that it needs equipment to transmit and receive information (such as a modem for example) to and from the power station; Plus, it's expensive. There is another problem with this

oo The system is that it does not provide information about tampering with the counter.

Keeping in mind the drawbacks of dl technology, the purpose of the present invention is to provide a prepayment system to effectively control the electrical energy supply in Ag AS meters installed at the customer site. General description of the invention

Another objective of the present invention is to provide a prepayment energy metering system Ve using a 771 system of energy-(intelligent contactless card) and a smart card (meter tightly closed)

The present invention also aims to provide an energy prepayment measurement system that includes an automatic device for cutting off the energy supply.

vo The present invention also aims to provide an energy prepayment system to perform the metering process which, using a non-contact smart card, can provide information to the energy supply about the consumption; how the credit is used; Where or which meter is using this canal and information about tampering and tampering that occurred in the meter.

(a) It is also an objective of the present invention to provide an electric energy supply prepayment method which is supplied by means of an unconnected card reader system.

The present invention refers to the use of a meter completely integrated into a single unit; Completely covered and not connected to the outside; It includes a prepayment system and a more efficient way to control the energy supply

Yo electricity and to obtain excellent information from the meter by means of smart cards without links.

The prepayment system of this invention includes a linkless card for payment control

The preset is equipped with a way to cut off the power supply, which is also responsible for detecting

Prepaid cards and granting them validity, as well as controlling the prepayment system and Imdad

power to the meter. In a preferred embodiment of the invention; Includes non-contact prepayment control card with a way to cut off the power supply. 1680-0116 element of contactless intelligent card burner reader microcontroller and zero point trespass detector for AC voltage supply © cut-off element controller and card feeder control. The prepaid system in this invention does not seek all the time to search for a prepaid card without connections; Because a large amount of energy will be wasted in a process that takes place only a few times; Therefore, the search process with regard to prepaid cards does not happen to me within a few seconds every minute. Also, the electric energy prepayment method using a contactless smart card and the 0 electronic electric energy meter is equipped with a contactless smart card reader-writer; It manages the information exchange steps between the meter and the contactless smart cards by means of “radiofrequency” and the authenticity of the ASA prepaid card and the contactless smart card reader-wipper is mutually verified by means of two or more digital signatures and their serial number the meter; the balance of the smart prepaid card is offloaded and stored in the memory of the electronic Ve meter; and the information generated by the meter is stored in the smart prepaid card without connections. However, the invention as such, as a result of its organization as well as its mode of operation, vo in combination with other objectives and features” will be fully understood by the following description of certain embodiments, to be read in relation to the accompanying drawings, which numbers indicate Similar references to similar elements, where: Figure 1 is a schematic diagram illustrating an energy prepayment metering system according to the preferred embodiment in this invention. of the preferred embodiment in this invention. Figures © and ©(a) are flow diagrams useful in explaining how the energy prepayment metering system shown in Figures 1 and 7 works. a

Detailed Description CONTACTLESS CARD as used herein refers to the exchange of commands between the card and the reader - copying without the use of galvanic elements (eg no ohmic contact from the reader) - copying towards the integrated circuit © inserted inside the card); Whereas, the power that powers the integrated circuit is contained within the card; It is taken by command from the read-copy unit; communication and power to these integrated circuits is done by coupling. So; The card without connectors can be separated from a loose distance of a few millimeters to many centimeters from the reader-replicator unit and the Lad data transmission between them still takes place. 01 "Intelligent Card" refers to a card the size of a plastic credit card; has an integrated circuit (microprocessor, memory, or dedicated circuit); Equipped with a reader with processing power that is used in many applications in the form of a large amount. The term "digital signature" or "digital key" refers to an arrangement of data" by which a code command in the same order as the data can be decoded. Ve The term “tampering” as used herein refers to all activities 0 that are carried out to change the consumption recording of the electrical energy consumed by the user of the meter. The current from the electric energy meter without cutting off the electric power supply to the user in such a way that the meter does not record the energy consumption of the user during the period of disconnection from the meter. Y. 'Derivations (1078351005') means the change of the automatic position of the counter in a socket outlet, with the aim of deducting or counting the energy of a Le Jif that has already been consumed. The term 'Derivations' is used in this text to indicate the existence of a bridge with less electrical resistance outside the meter, with the aim that all the current consumed by the user does not pass through the sensors of the meter and therefore feels a current less than the actual amount consumed by the user; these bridges are commonly known as “bridges” Ye Anticollision refers to a judgment between cards which is based on the serial number of cards so that only one card is selected, as specified in 14443-3/8 (ISO 15014443-48).

A

The present invention provides a prepayment system and a method for measuring electrical energy using data exchange without a link unit; As the electricity meter is one integrated unit; Completely covered and completely uncontacted with the outside environment. According to the preferred model, the prepayment system and the energy metering method reduce the installation cost by providing an integrated electronic meter that allows the user and the energy utility company; Without the use of dae the data exchange process is equally between © existing power lines or communication transmission equipment by the use of an additional modem. like that; According to the best models of this invention; The exchange of data without (MODEMS) connections takes place through a prepaid modular unit, which is a smart transcriber reader without connections integrated into the electric meter, where the smart card transfers the purchased quantity directly to the meter, as well as receives and stores information about changes in Operating the meter as well as tampering with the meter, which 0 turns into the database of the power supply when the smart card is recharged without connections. The energy prepayment system enables payment for the service supply before consumption by using a smart card without links. The smart card is reloaded without connections at the point of sale terminal or directly into the power station of the power supply. 1 In this invention; The customer receives electricity from the generating station via power lines directly at the owner's meter and it is not necessary for the meter to be connected to any telecom terminal or to any external device that may act as a conductor (eg JE) Infrared connections; direct cable connection RF communication (RF) or connect via an alternating current (AC) yo-line to control the electric supply.Fig. 1 shows a simplified schematic diagram of an energy metering prepayment system according to the preferred embodiment in the present invention.As shown in Fig. 1 The energy metering prepayment system preferably includes terminals of sales point 01 which may be located at the central station and/or collection offices of the supplying party. (terminals of sales point) equipped with Allg YY (reader-writer module of intelligent cards) It can be a traditional type of contactless cards or it can be a specific development. 717 connection (communication interface) to connect with each other About Yaoly

A YY server route with a collection system that keeps track of customer billing information and information stored in the supplier's YY database. The communication medium used may be a VV (interface) for example; through a modem (MODEM) using the Internet or the Internet; or a dedicated connection. The YY database will also store 5 the amount of kWh paid pre-purchased by the user; and the amount of kilowatt-hours that were measured over the life of the meter as well as the tampering that occurred on the part of the user and that

In order to be analyzed and taken action by the power utility company. To provide a secure communication process as well as granting authority to transmit - and receive data via the terminal of point 01 all and server 17, the energy metering prepayment system will include a pair of Yo 4 Y¢ (security modules) which; As Ladle is in Figure J) it is also installed in the server as it is installed in the points of sale. preferably The YE and 75 security modules provide encryption and decryption functions for data transmissions between Server 71 and the oY + POS terminal for example by using numeric keys so that data is only decrypted using these numeric keys; Hence when the data is transmitted from the vo terminal of the point of sale towards the server and vice versa; Until Late Jo dle data is vulnerable to interception; This data cannot be decoded if decryption keys are not available. The data transmitted between the Yo POS terminal and the YO prepayment intelligent card is encrypted by the security module; Using the numeric keys written in smart cards 15. The YE Security Module also provides data security for 0 transactions with the Yo (contactless intelligent card) and the YY ASH card reader-wipper module preferably The contactless smart card 11 and the YA (electronic meter) include encoder/decoder modules installed in the microcontroller or integrated circuit (10) respectively; For its own use of prepaid systems to carry out the task of exchanging encrypted information. In one of YO's favorite models in particular; The decoder is located in the electronic meter on the microcontroller of the non-contact card for prepayment control and is equipped with a means to cut off the power supply or

It may exist in a smart card reader without connections. ba

a

When leasing or renewing electric power supply services; The energy utility company will install an electronic meter equipped with the prepayment system presented in this invention at the home of the VA (user) and will deliver to him a reusable prepayment contactless intelligent card preloaded with a certain amount of kWh prepaid at .01 point of sale in one of the preferred models; The smart card without the prepaid connections is allocated using the information stored in the memory of the microcontroller. This information is the counter number and the contract number; the last date to load the card; and security keys [eg: digital signatures as well as those specified in the Mifare© cipher system (so that, in the best embodiment, key (a) 0 is used to offload a certain amount of prepaid kWh and) b) can load and unload a certain amount of aly per hour prepaid in a segment of [AE or DES etc.); data on the amount of kWh cline paid and the amount of kWh prepaid; To be conveyed to the counter by vacuum. In particularly preferred af models, the card's microcontroller memory without Ve connections for prepayment can enable and store the information generated by the electronic meter.

Concerning the energy consumed by the user throughout the life of the meter and attempts to tamper with the meter. to start power supply; The user will place the contactless prepaid smart card 11 near the contactless electronic meter reader-writer “VA (contactless electronic meter reader-writer) and this electronic meter reader-writer Ye will grant validity to the prepaid card ©V (prepayment card) and will discharge, in whole or in part, the purchased quantity of kilowatt-hours paid for in advance. The determination of the process of fully or partially discharging the purchased quantity of prepaid kWh in card 11 to the VA meter depends on the value recorded on the card in respect of the prepaid kWh to be transferred to the meter by discharge or When the balance© is less than the discharge value. In this invention; The term “quantity of prepaid kWh to be transferred by “discharge” refers to a quantity of prepaid kWh to be transferred by “discharge”; Suppose this number is 0, when the card is placed near the prepaid dae; Operations will take place

And

11 Discharging at a rate of 00 after 20 kWh except if the residual amount of ©; In this case, every 0 kilowatt-hour prepaid in the card less than the amount of kilowatt-hour prepaid from the card will be discharged to the meter. Simultaneously or after subtracting the prepaid kWh amount, the reader-duplicator without connections in relation to the energy consumed by the meter Lad uploads all the information produced by the electronic meter © before the user during the life of the meter onto the card and identifies Tampering with the counter. The meter will continue to display on the screen the information related to the remaining amount of the electronic supply 18 with prepaid electric energy so that the user can go at the appropriate time to the station Station V0 to reload the smart card without connections 01 point of sale terminal accept; Data is read, read and copied on and from a prepaid smart card Vo terminal of the point of sale 0 dedicated to the Prepaid Electricity Metering System as required under Program 5 of the Service Provider. as mentioned above; The card can be reloaded at the point of sale, and the data collected by the card about the electronic meter is also cleared, where it is 0, and then reviewed by the energy utility company. YY station accepts to be sent to the database as well as (all other according to Adee) quantities either in pesos (or any 01 terminal at the point of sale 1 of the supply point for service 71 in kWh and performs By transferring this process to the server however, since the information as it is registered in the card YY to store in the database, the user offloads the prepaid amount in kWh Smart Vo Prepayment per hour. The meter screen will display daly and it will be in kilowatt VA to meter information about prepayment in kilowatt hour. ©

Figure shows? Schematic diagram of an electronic meter in working condition simplified in the form of assemblies forming a prepayment system without connections to control the supply of electrical energy and obtain relevant information; It is suitable to be used in accordance with the preferred embodiment of the present invention. The electronic energy prepayment VA meter includes an electric energy measurement card 4, a contactless prepayment control card with an energy supply shut off card 1, and a device

01 (antenna) and antenna 1 (device for shutting off energy supply)

aa

VY

The energy measurement card includes 9 energy measurement modules (01 module) that record the electrical energy consumed by the user; and an energy measurement that controls the operation of the microcontroller 01 module with fast and uninterruptible memory to store information about 5 prepaid electricity discharged from the card without contacts for payment control The pre-oF (prepayment control contactless card) as well as the information released in the Measurement module Led 01 relates to the energy consumed by the consumer over the life of the meter and tampering with the meter (eg JU disconnections). Transfers; the presence of derivatives; etc.) and 11 liquid crystal display (LCD) to control the led 0 microcontroller where it is displayed; within gyal variables information about the available power for which the user has prepaid When the prepaid kWh can be discharged from the card without connections V0 and special information instructing the user to place the card near the meter to start the process of discharging the prepaid kWh; and an independent feed source VY ( independent feeding source) of metering unit 01 and microcontroller 11 Ve of energy measurement card 1. The power supply operates when there is an electric power supply; It runs at a maximum of 1 Co second when the supply is le shite which is the time for GIS to retrieve information about any power Ji operations. The pre-paid control linkless card with energy supply shut off card 0 (energy supply shut off card) is the main unit responsible for detecting and authorizing the pre-paid Vo card as well as for controlling the pre-payment system and supplying powered counter. in one of my favorite forms; Contactless prepayment control and energy shut off card A contactless prepayment control and energy shut off card ASH reader-writer element of A contactless intelligent card ) 0 equipped with a radio frequency generator; Microcontroller 17 Zero cross detector for AC voltage supply 1 Supply cutting off element controller ©; feeding source For this controller card? The prepaid card does not proceed without the links provided

VY

With the power supply cut off card © all the time looking for a card to prepay without Because it would waste a lot of energy in a process that happens only rarely and then only 15 connections for a few seconds every minute. 11 The search is done of the prepaid card The reader-wipper component of the connectionless prepaid card system is introduced according to the © of the present invention; On the one hand; The information of the prepayment 01 intelligent card is transmitted to the microcontroller 11 in the VA electronic meter via the microcontroller .17 on the other hand. The reader-writer element for contactless A cards delivers the information of the microcontroller 11 of the counter 18 to the Ve smart card 0 via this microcontroller 7. The exchange of information between the contactless smart card Vo and the YA electronic meter takes place through a printed circuit antenna and one integrated into the contactless prepaid card (for the meter and prepayment cards 04 and 71; on series, which are sensitive to the radio frequency band in which they were transmitted. Preferably, the reader-wipper element in A cards is an integrated circuit that detects the existence of a contactless prepaid card; and interprets commands for a zero prepaid card This VE (antenna) also picks up variable RF power commands, whether they are of the type given in the RF Transmission Protocol specified in ISO 14443-3A or specified Standard 150 14443-4A or any other RF data transmission AT protocol is appropriate for this purpose. ve generates and transmits the card-reader-wipper element without connections al A with RF power through the antenna 1 to the counter VA The change in order of the RF power received by the antenna 16 occurs due to the presence of a prepaid smart card without connections 8. When the contactless card reader-wipper element A detects the presence of the contactless prepaid card V0 it reads and transmits the contactless prepaid card quantity Vo Ye to the microcontroller 7 and pre-proves and authorizes the card Vo by Encryption of the parsed cipher in the reader-wipper element 8. This means that samy the cipher/decoder in the reader-wipper A unconnected certifies and copies validity by means of digital signatures of information stored in the memory of the microcontroller or integrated circuit

1 meter number; contract number; Jie 15 on the card VT for use with prepaid cards (10) and last date of card loading; security keys; data on prepaid kWh data amount; prepaid kWh amount that will be transferred to the meter by discharge, etc. If this information is not verified and proven correct, the reader will not

NA In the electronic meter 11 By unloading the quantity or information related to pre-payment with the card Data V0 is dumped immediately upon confirmation and granting validity to the pre-paid card without connections for the pre-paid quantity of electrical energy supplies from the smart card without “4 (electric energy measurement card) to the electric energy measurement card 11 links Where is the electric energy measurement card ? oF by prepayment control card that the user consumes. in general; The Lads are responsible for reducing the amount of energy 00 The information related to the amount or quantity of kilowatt-hour prepaid is stored in the memory of the electrical energy metering card 9 This microcontroller is considered a quick 11 microcontroller responsible for controlling the Reducing the prepaid quantity of the electric energy supply whenever the user consumes 1 kWh on the basis of the consumption information transmitted by that energy metering unit. 05 by an alternative method; The relevant information about the historical data of the meter which in the flash memory Lad will be stored 115 will be recorded in the prepaid smart card without connections. Information exchange between the meter old celal 4 of the metering card 11 of the microcontroller 7 is done in particular by microcontroller 11 and smart card 18 electronic through the structure of ell) with card 11 prepayment control card and microcontroller Ye is the element that stores information 11 sequential connections. In other words, the microcontroller reads the data Yo detects the presence of card 1 on its fast memory; while the microcontroller via a serial communication structure; It also 11 stored on the fast memory of the microcontroller via a reader-wipper for payment cards 11 reads the data of the prepaid card and acts as an intermediary for transferring information from one system to another. cA prepaid YO includes the payment system pre-energy meters op HAY) in an alternative model under this electrical system using a smart card without connections; a device for cutting off the supply of electric power in particular; It appears that the ang card is in reference to the figure ? At .09 automatically on behalf of the user, squirt

Ye Lag pertaining to the prepayment control also includes a zero point infringement detector and a supply cut-off controller © which operates a device that cuts/resupplies electrical power T to the control card V in one of the preferred embodiments of this invention ; Microcontroller defines 1. Power in prepayment? How much electrical energy is left available to the user to consume because he will control 1 reads this information from the electrical energy metering card 9. Therefore; The microcontroller © 09. supply or will cut off the power to the user when the VA (user) amount is typically cut off to the user which is read by the VA (meter) available energy stored in the meter card electric power 4 of the meter supply electric power when the quantity (sale) of the microcontroller 7 is zero and is greater than the 17 provided by the electric energy scorecard 9; Which microcontroller Aja 0 reads microcontroller 7 on a prepaid card? His available quantity is zero. All the time; (A) the user's electrical power from the energy metering card The power supply is cut off or restored by means of a supply cut off control device and an alarm where it may be a cut off or resupply device “© (supply shut off and failure alarm) stop in one of the preferred embodiments. ¢ (supply shut off /restablishment device) is powered by a Ve relay. The power supply may be cut off by the stop alarm controller and relay©; It is when the controller 1 (relay) sets the opening and closing of the relay © (controller) the function of the controller by means of a stop or open command; Controller 0 opens or closes the relay on mini 1 and relay and alarm controller LY (solid state device) route a hardware device A power failure occurs; Where Ala interruption is realized in 1 by power failure © microcontroller Ye and then “1 (cross zero detector) electrical power by zero point cross detector The necessary precautions are taken and information is not lost during any interruption for electricity supply. is done. 4 FEED ALL THESE DEVICES BY THE FEED SOURCE The microcontroller reads that the available amount of power stored in the Laie scorecard stops supplying to the Tal microcontroller until the electrical power is zero; The controller Yo will send the relay and power off ©. The Power Stop & Relay Controller© includes a microcontroller (not shown) that has three inlets and two exits. 1. An inlet of the microcontroller determines whether the power supply or cutoff relay should be closed and

Rub another entry hole on the microcontroller that determines whether the power supply or cutoff relay should be opened (Lin) HAT an entry hole on the microcontroller that determines the AC line zero point trespass (this means circuit ground or zero voltage); The command which determines the zero point transgression also indicates that the polarity towards it has exceeded the supply current lm (AC)© In other words this last entry hole denotes the moment when the Led becomes phase positive Leg relative to the breakeven point (this It is the basis of the unit card for prepayment AF and reverse (i.e. phase becomes negative with respect to the break-even point).This task is determined by a zero-point trespass detector with regard to electric energy 1 (and this is completed in a circuit that detects the zero point bias is used for two purposes: the first is when the microcontroller in the control relay detects that the power is off (not shown) that no zero point bias has occurred and here it is inferred that the supply The electrical power has stopped and this will lead to a lack of electrical power supply in the card without connections to control the prepayment with the power supply oF cut off and at this moment the microcontroller sends through one of its exit slots Del ve to signal to the microcontroller 7 that it should It maintains the appropriate information in order to function properly and not to lose the data of the transactions that were being carried out. The second purpose of the task of opening and closing relay 1 is that in order to be closed the relay must receive a direct current command (DO) between its operating terminals; In order to be opened it must receive a direct current command in the opposite manner to the command to close; Hence to operate when zero point trespass is detected and AC supply polarity “0 (0E)” The relay can be opened by activating a solid state device YY (solid state device) when the in-phase polarity is negative with respect to the break-even point and the relay can be closed by activating the device solid ¥ when phase is positive with respect to the break-even point Conversely, when microcontroller 7 reads an available amount of power greater than zero the microcontroller 1 will send a supply command to the microcontroller in the relay and control point ve stop alarm which energizes The hardware device with a zero-point power trespass detector 1 during the positive line cycle It should be understood that the power failure and supply interruption alarm control © can be built into a microcard or as an additional function of the payment card microcontroller V Linkless preset and stop power supply 0.0 Pa

XY

For further use and custom ALE will be 15 As mentioned before, the smart card for each counter; This means that it must be used with a specific counter. The smart card includes a microcontroller and a VT antenna or a circuit with a specific use in contactless prepaid cards in the form of a VT The information about the card is recorded in the internal memory of the microcontroller 1. Better; A smart card may be the size of a conventional credit card and at the same time conform to Standards 150 (14443-1); (14443-2); (14443-3)» (14443-4); Although it is not mandatory. By the same. The use of smart cards for prepayment without links in the prepayment system for the supply of electric energy to the electricity meters in the present invention has three functions: discharging the amount of kilowatt-hour paid for in advance to be integrated with the meter (1) main: receiving data of the energy consumed during the life of the electronic meter (Y) of the energy; 0 transfers and the existence of derivations; without the need to use (Jia's Jamil operations and manipulation of the meter reader or complex costly systems) and (vii) avoiding downtime or Mechanical damage to the meter. During operation.” In the present invention the prepayment system for electrical energy using contactless smart cards is loaded into the meter by means of a contactless prepayment control card with power supply cut-off capability; This card performs the operations of detecting 1 the presence of the prepaid card and granting it the validity to operate; As well as controlling the prepayment system and the energy supply to the meter according to the work flow chart in the two figures? and ?(). in particular; The microcontroller 7 controls the contactless pre-payment control card and the power supply-cut off 3 in the pre-payment system of the present invention; It works independently of the rest of the microcontrollers in this system. Before starting the control and communication tasks; The microcontroller 7 initializes the serial ports and prepares the reader-wipper for cards 1 to communicate with the microcontroller eg ((ISO14443-4A) and then it will work according to the Smart A standard without Connections Once the ports are turned on and the reader-wipper is configured. The microcontroller reads the data stored in the Yo card. The customer serial number; kWh stored throughout the Jie 9 electrical energy meter; Meter life; Disconnections; Transfers Derivations and power accumulated while there are derivations (the serial number of the counter will only be read in this part of the program as it does not change).

read data” shal Ta An internal clock of the microcontroller 1 is in operation so that it pauses every Ve millisecond so that this microcontroller 7 performs a specific task; Then microcontroller 1 enters inactive state; This means that it stops performing any task and 'sleep' to save energy to the maximum degree; This is very Lage to provide energy according to the standards © and to avoid unnecessary material losses for the utility company. The Alls microcontroller 1 does not deactivate except with a signal from the timer or with a signal that the power supply has stopped. So; The BY microcontroller is a contactless prepayment control card with a power supply cut-off capability? waits for any outage; And the microcontroller will be in this state most of the time. ve in this way; If the clocking device issues an interrupt command (block (block) +3) the microcontroller 1 exits the idle state and reads the counter balance; kWh accumulated; number of disconnections; outages; derivations and transfers (block .) 001 If the opposite occurs, microcontroller 7 returns to inactivity to save maximum power while still awaiting any outage command (group A (vo) once microcontroller 1 has done the job of reading the data stored in a scorecard power 1 (group 100); this fixes and changes the state of the relay according to the user's prepayment balance microcontroller 7 checks based on the information obtained in group 001 that the prepaid balance against the supply will be greater than zero (group OY if the balance is not greater than zero the controller checks if relay 1 is open (group VY Te) if the Ala check of relay 1 in group + VY is negative; sends Microcontroller V commands the controller of the cutoff and stop alarm 5 which performs the opening of relay 1 (group 1300) to cut off the electrical power supply to the meter A after opening relay 1 of group Fe The microcontroller 7 reads the information displayed on the LCD of the VA meter (group VT however; if the result _Ye specified in set 101 is satisfactory; This means that relay 1 is open; The V microcontroller then reads the information displayed on the display of the VA counter (group 161). Otherwise. If the balance read in group 011 is greater than zero the microcontroller 17 checks if relay 1 is closed (group 00?1).

Alla validation relay 1 in group 160 is negative; The microcontroller sends a command - to the controller of the instrument responsible for the shutdown and stop alarm © which will perform the task of closing relay 1 (group daly (Vor) power supply to the counter VA after closing relay 1 in group 00 read Microcontroller V Information displayed on the display _ Micro-counter 18 (group 0610). If the result Leal in group VE is positive, then relay 1 closed; the microcontroller 7 reads the information on the counter display VA (group VT) after checking Alla relay 1 as described in groups 011 to Ne the microcontroller checks 1 through the microcontroller of the energy metering unit 01n

1171 If the screen displayed in group (VY + screen appears in the counter (group 0 preset”); the microcontroller 7 checks whether the RF generator is in Faull mode” appears in the card reader-wipper element Smart Unconnected + then VAL ON (group 088) starts searching for the prepaid card. If what is reached in the group then microcontroller 7 returns to 191) issues a command to turn on the RF (group 088 ‎ cla

Ve in the inactive state to save as much energy as possible while waiting for an outage command (group (Ar) and return to perform the routine work described in groups 0 to NA In the positive state in group OAL this means that the RF is working; then the RF command will be broadcast through the VE antenna to detect the presence of a smart card without VO links nearby (group (YY)

a When the display in group 171 responds to “kWh”; transfers; separations” and “derivatives”; The microcontroller 7 checks whether the RF emission (group 001) is not working; On Alls the radio cooling emission stopped working; Microcontroller 7 returns to Aa inactivity to conserve maximum power while it waits for the command to fail (Group Tans (A) again the routine described in Groups 50 to AAC

Yes if the RF Emission status check result is negative; This means that the RF emission is working; Then the microcontroller 7 turns off or stops the RF emissions (group V+) and then the microcontroller 7 returns to the inactive state for greater savings.

Ba

Yo. After doing the routine work (Ae), a certain amount of energy is spent while waiting for an order to stop (Group

AA described in groups 90 to After the microcontroller 7 performs the tasks of reading the data stored in the energy meter card 9; in the meter on or off (LCD) and checking that the display 1 and confirming and changing the status of the relay 11 It will proceed to detect the existence of the prepaid smart card SLO with respect to the frequency © without connections and will perform the process of offloading the prepaid amount. As previously mentioned; When the microcontroller confirms that the RF is working; 11 To perform the VE tag search, the microcontroller issues an RF command over the antenna in accordance with 15014443-3/8. After making the search card call in 171 (group) in field 15, the microcontroller 7 checks whether there is a smart card (YY group 0

Te if there is a smart card within the search field in the group (YT search (group

Vo 7); Determines if there are more than one smart card 6 0 Collision prevention is performed (group Existence of more than one smart card 10 one of them will be prevented according to the Ala criterion in the search field (in

Ve within the search field of the group Yo if there is no smart card (1S014443-3A). The microcontroller 7 returns to the inactive state to save as much power as possible while 1 waits again for the routine described in the groups of fas (Ar by interruption (Al-Group) al

AA to 0 according to Yoo The system selects the card (group 0) immediately upon detecting the presence of a card within range as specified in the JU standard for the Wireless Data Transfer Protocol (eg the YO controller checks for 15014443-48). Group If it is not YY it checks whether the smart card matches the counter (group Inactivity to save more Ala the card matches this counter; the microcontroller 7 returns to and returns to perform the routine work ( Ae amount of energy while waiting for a command to cut (group YO however; if card matches counter; NAY described in groups 50 to at this point; checks (YA+) microcontroller will read card balance Whether the prepaid smart card has balance (Group V) Microcontroller A (Group Ya)

1 And if it turns out that in group 790 the result is negative; Microcontroller 7 returns to a no state and returns to start activity As (to save maximum power) while it waits for a command to cut (group VA) if the verification result is VA Execute the described routine in groups 90 to positive; The microcontroller will allow the balance of the Yo card to be discharged into the group 9 of the power meter card 11 in the quick memory of the quick controller 15 of the smart © It may happen that it is not done (Ys) by the payment control card Prepaid without connections (group) Discharge all the prepaid balance at once, because the balance that is discharged depends on the quantity stored in the card in the variable 'amount of prepaid kWh that will be transferred' The system reads the remaining balance in the meter 3010 by emptying.” After emptying the balance in the group to the remaining balance in counter 15 and adding the empty balance of the card (701) group 0, the value of the new prepaid balance resulting from the operation that took place is sent (VY + (group via the microcontroller 77 00) to the quick memory in the energy meter (group 7010 in the group) after receiving the new balance value or at the same time; The microcontroller 11. Lod 01 microcontroller (3 560 group) sends the information generated in the metering unit Vo to the smart card 1 relating to the energy consumed by the consumer during the lifetime of the meter and tampering with the meter (eg Ve etc). After the information has been sent to the BED (disconnects and transfers; and the presence of the JU (JU) to save the most energy smart card BL 50, the microcontroller 7 returns to the NO state to re-initiate the execution of the routines described (A+ by interruption). (group al while he waits

AA in Groups 90 to - Although forms realized in a certain way have been explained and described in the invention (JAN), it will be clear to someone with knowledge in this field that it can be implemented through various changes and modifications without departing from the spirit and scope of the invention. Hence, it is sought, within the framework of the attached protection elements, to protect any change or modification that may be subject to the scope of this invention.

Claims (1)

Items. Protection for “(electric energy) consumption of electric energy (prepayment) Prepayment method 1-1 By using: 1” (contactless prepayment intelligent card) contactless prepayment smart card 1) 1 Amount of prepaid credit balance for energy the user purchases from an Alena energy service provider; Contactless prepayment VY placed inside the electricity meter; intelligent card reader-writer means) + AY) The method includes 4 steps (contactless prepayment intelligent detecting the presence of a contactless prepayment smart card Ve (electricity meter) within the detection range For electric meter card 1 and electronic meter Interchange of information between electronic meter vy “(contactless prepayment intelligent card) for prepayment 0 and reading device (prepayment intelligent card) for prepayment 4 SAN card authentication Vi (internal contactless intelligent card reader- and internal notation for contactless smart cards 0 in common; cwriter means) 11 (contactless prepayment means) Set whether the contactless prepayment smart card VY has a credit balance Prepayment is greater than zero; (04) intelligent card prepayment Dumping and storing the prepaid energy amount from the prepayment smart card vq into the memory of the electronic electricity meter; and (intelligent card) 0 Recording all information generated about the status of the meter in the contactless prepayment intelligent card YA and where the obtained information “(contactless prepayment intelligent card) YY consists of the consumption of electrical energy consumed by the user during the life of the meter ; YT credits and energy lal number outages; Jie derivation and confusion of the counter and information on cumulative YE counter faults while using derivations and backscattering. Yo YY 1*?- method laa of protection element 0 wherein the detection step includes the emission of a radio frequency signal from the “electricity meter; the exchange of information between the meter and the contactless prepayment intelligent card 7 by radio frequency 1. ?- The method according to the oF protection element where the step of detecting the presence of a contactless prepayment intelligent card within the detection range of an electronic electricity meter ¥ also includes the steps: ¢ Set what There was more than one contactless prepayment intelligent card © in the field of electric energy meter detection; 1 Select contactless prepayment intelligent card Vv according to the preset RF data transmission protocol. 1?- The method according to any of the preceding claims; Where the step of discharging the prepaid energy amount “_ the payment from the smart card for prepayment and to the electronic electricity meter depends in part or LIS” on the amount of the prepaid credit balance charged in the contactless smart card for prepayment .(contactless prepayment intelligent card) ~~ ¢ 1 *#- The method according to the protection element; Where the step of unloading the prepaid energy amount from the prepaid smart card to the electronic electricity meter includes the steps: 1 Reading the amount of the credit balance in the meter; Adding the amount of the total or partial credit balance disbursed from the smart card to the remaining in the meter; and 1 Store the new value of the prepaid SAA balance in the meter. Intelligent prepayment includes one or more power factor; line quality; and outage ; . Current, backlashes, current derivatives, and similar verbs. -v 1 method under any of the preceding claims; It also features Jala (contactless prepayment intelligent card) reading and recording device, the electronic counter is active for a few minutes every minute to detect the presence of a contactless prepayment intelligent card Y¢ ot within the detection range; Which performs the process of documenting the data transmission; Thus saving energy from for energy service provider. 1 “- Advance payment method according to any of the previous protection elements. It also includes the steps: 7 Reading the credit balance in the memory of the electronic meter; 1 Ensure that the credit balance is greater than zero; Confirms the state of the automatic power supply locking device © to set whether the device is open or closed; And 1 generate a signal to open or close the automatic power supply shut-off device based on the prepaid credit VY balance reading; A wherein when the credit balance is greater than zero a signal is generated to trigger the automatic power supply shutdown 8 to allow power to be supplied through the meter; When the credit balance 0 is not greater than hua a signal is generated for the automatic device to shut down the electrical power supply through the MY meter and to suspend the power supply to the user. 1 4- The method according to any of the protection elements (AL) where each time the user Y recharges the card with a prepaid amount of energy at the point of sale information about the status of the meter; The energy consumed by the user during the life of the meter and the information related to the meter faults recorded; in the contactless smart card it is dumped into a database by the point of sale in order for the energy services provider © to perform additional analysis. -01 1 method according to any of the protection elements (AGL) where the prepaid smart card authentication step and the internal read-write method includes the use of two or more digital fingerprints and the YF serial number of the counter. 1 11- System for prepayment and control of an electrical energy supply ¢(system for prepayment and control of an electrical energy supply) Y The system includes: 7 contactless prepaid smart cards that can be recharged with a prepaid credit balance from ; energy purchased by the user from the energy service provider; and ° an electronic electricity meter that includes: 1 energy metering unit that records the electrical energy consumed by the user of the meter; aa yo micro regulator for regulating the operation of the energy metering unit v memory for storing information that includes information generated in the metering unit A related to the energy consumed by the user during the life of the meter and information about the malfunctions of the meter 8 signal transceiver element; 0 contactless prepaid smart card reader/writer; To send and receive signals in order to exchange information 1 between the electronic meter and the contactless prepaid smart card; to mutually authenticate the “0 Prepaid Smart Card” and the “Internal Prepaid Smart Card Reader/Writer”; To offload and store in memory a prepaid amount of energy from a Ge 1" prepaid smart card; and a VA, where the contactless prepaid smart card receives and records information from the ve consumed by a electricity meter about the status of the meter; it includes The information mentioned is the energy “0 Jie used during the life of the meter; counter credit balance; and information on counter faults “10 Number of interruptions; disconnections; derivations; and energy build-up during the use of YY derivations and reflections. YY also includes a device for shutting down the power supply. 1 also includes a regulator for the OY supply closing device according to protection element (system) System 1-10 Power; operates to open and close the closing device in response to a disconnect or open command from a “micro” regulator. Where the micro-regulator has a memory of OF to 11 according to the protection elements (system) The system - 141 flashes to store the information generated in the unit of measurement related to the energy consumed by the user “the counter and the counter malfunctions. jee during ¥ Lad crystal display including V8 to 11 according to any protection element (system) System #1-1 liquid in order to display information about the status of the counter. Ya —V 0 Lids (system) of protection element 05 in which the “Lad” LCD screen is used to show the available user prepaid power and the discharge time of the prepaid power TF from the contactless prepaid card. 17-1 System According to the Ve or OT protection element, the liquid crystal display screen also works in order to display special information showing the user to place the smart card near ¥ the meter to start discharging the prepaid amount of energy. YA 1 The system according to any protection 11 to VY also includes an independent power source Y for said power meter and said micro-regulator. 11-1 The system according to any protection 11 to VA where the power source is to provide “power when there is a supply of electric power; and to provide power for an additional period sufficient to support” information about any power handling when There is a supply failure. 1 0 ?- system according to any protection element 11 to 14 Lad includes a cross zero detector “electrical power” that sends a command to the micro-regulator when there is a power failure to prevent the loss of “information during a power supply failure Electronegativity YY 1 System pursuant to any element of protection 11 to Yo where the contactless prepaid Y smart card reader/writer Lad includes an encoder/decoder unit for: Verification and authentication of the “card” prepaid; code the transferred data; check and validate the information recorded in the memory; the micro-arranger on a specific use of the prepaid cards of this contactless prepaid card oo before unloading. =YY 1 The system under any claim 11 to YY also includes at least one POS terminal having a pair of security units; a server connected by means of a communication interface with an aggregation system that maintains on user billing information and information stored in; Energy Uses Provider Database. 1 7?7- The system according to any protection element 11 to (YY) where the electronic electricity meter is “hermetically sealed.” 1 14- The system for prepayment and supply regulation electrical energy substantially as" described herein by reference to the accompanying drawings BEL 1 72- A method (system) of prepayment for the use of electrical energy substantially as 7 is described above with reference to the accompanying drawings.