EA003110B1 - Method for transmitting and storing value and value store electric power meter using the same - Google Patents

Abstract

1. A method for storing credit information in a value store module in a value store electric power meter by communication between a host and each terminal through an electric power modem included in the value store electric power meter which is a terminal, comprising the steps of: (a) the host generating first random data, sending the first random data to a terminal, generating a session key by a key generating algorithm using a terminal intrinsic secret key, generating a first signature value by a signature generation algorithm for a comparison during a terminal authentication, and the terminal receiving the first random data and generating the session key by the same method as the host; (b) the terminal generating a second signature value by a signature generating algorithm and second random data and sending the second random data to the host; c) the host comparing the first and second signature values and authenticating the terminal, the host generating a third signature value and sending the third signature value to the terminal with information on an amount of money when the terminal is authenticated and the terminal receiving the third signature value and the information on the amount of money from the host, generating a fourth signature value, and authenticating the host by comparing the third and fourth signature values with each other; and (d) the terminal increasing the value by decoding the information on the amount of money and sending the value obtained by encrypting a balance and a terminal ID using an encrypting algorithm to the host and the host receiving the encrypted value, decoding the encrypted value, comparing the stored terminal ID with the decoded terminal ID, authenticating the terminal once again, and backing up the balance in a record file when the authentication is completed. 2. The method of claim 1, further comprising an electric power charge system conversion step including the sub-steps of: (a1) the host generating first random data, sending the first random data to a terminal, generating a session key by a key generating algorithm using a terminal characteristic secret key, generating a first signature value by a signature generation algorithm for a comparison during a terminal authentication, and a terminal receiving the first random data and generating the session key by the same method as the host; (b1) the terminal generating a second signature value by a signature generating algorithm and second random data and sending the second random data to the host; (c1) the host comparing the first and second signature values and authenticating the terminal, the host generating a third signature value and sending the third signature value to the terminal with mode information when the terminal is authenticated and the terminal receiving the third signature value and the mode information from the host and generating a fourth signature value ; and (d1) the terminal authenticating the host by comparing the third and fourth signature values with each other, and the terminal converting a rate system, generating an encrypted value obtained by encrypting the mode information and the terminal ID using the encrypting algorithm and sending the encrypted value to the host and the host receiving the encrypted value, decoding the encrypted value, comparing the stored terminal ID with the decoded terminal ID, authenticating the terminal once again, and backing up the balance in a record file when the authentication is completed. 3. The method of claim 2, further comprising a use information check command step including the sub-steps of: (a2) the host generating first random data, sending the first random data to a terminal, generating a session key by a key generating algorithm using a terminal characteristic secret key, generating a first signature value by a signature generation algorithm for a comparison during a terminal authentication, and a terminal receiving the first random data and generating the session key by the same method as the host; (b2) the terminal generating a second signature value by a signature generating algorithm and second random data and sending the second random data to the host; (c2) the host comparing the first and second signature values and authenticating the terminal, the host generating a third signature value and sending the third signature value to the terminal with time information when the terminal is authenticated and the terminal receiving the third signature value and the time information from the host, generating a fourth signature value; and (d2) the terminal authenticating the host by comparing the third and fourth signature values with each other, and the terminal sending the value obtained by encrypting a logfile of use details using the encrypting algorithm and sending the encrypted value to the host and the host receiving the encrypted value, decoding the encrypted value, comparing the stored terminal ID with the decoded terminal ID, authenticating the terminal once again, and backing up information on use during days, weeks, and months and a timer in a record file when the authentication is completed. 4. A value store electric power meter, including an electric power line input and output terminal for measuring the amount of used electric power, comprising: an electric power consumption operating portion for measuring the voltage and current of an electric power line and calculating used electric power; an electric power modem for performing data communication between the host and the terminal through the electric power line; a secure storing portion including a secure access module (SAM) having a CPU and an encryption key and an encryption algorithm for storing value and a store value module (SVM) for storing value, for preventing the fraudulent use of the value information and hacking, excluding a cryptographical attack, and requiring the authorization process of the SAM in requesting a token from the SVM; an on/off latch relay switch for breaking the supply of electric power according to the balance result of the SVM; and a token exchanger for reducing a token from the value information input from the SVM according to the amount of electric power consumed per unit time, the SVM requesting a new token to a token tank when an inner token is exhausted. 5. The value store electric power meter of claim 4, further comprising an IC card reading and recording portion to allow use with other meters such as water, gas, and calory meters by inserting an IC card into the electric power meter, receiving value from the host on-line, recording the received value on the inserted IC card, and reading the received value from the IC card. 6. The value store electric power meter of claim 5, wherein the IC card reading and recording portion is applied to water, gas, and heat meters employing an IC card method operated in an off-line state by recording added value for things such as gas and water in the IC card through the electric power modem, by which it is possible to store electric power value in the IC card by including a communication port comprised of eight terminals defined by the ISO 7816 Part 2 having Vcc, Clk, DIO, Reset, and Gnd for synchronously and asynchronously communicating with the IC card. 7. The value store electric power meter of claim 4, further comprising: an AC/DC converter for supplying an operation voltage required by the electric power meter; a power consumption sensor for sensing that the electric power is normally used when the output of a sensor is"0"and that terminals are bypassed and the electric power is surreptitiously used when the output of the sensor is"1" ; and a buzzer for generating an audible alarm and guiding a user to perform value transfer and storage when a last token is received by requesting a new token from the SVM after the balance of the token exchanger is exhausted. 8. The value store electric power meter of claim 4, wherein the electric power consumption operating portion comprises: a shunt resistor for measuring an amount of AC current; a voltage divider for serially connecting two resistors and selecting from a voltage range given by the ratios of the two resistors in order to adjust the AC voltage of the electric power line within the range of the input voltage of a voltage meter; an analog to digital converter for converting an AC current signal which flows through the shunt resistor into a digital signal of 16 or 20 bits ; and an analog to digital converter for converting an AC voltage into a digital signal of 16 bits, wherein the phase of the voltage is compared with the phase of the current and an angle by which the two phases are different from each other is calculated and output as a signal for applying differential rates. 9. The value store electric power meter of claim 4, further comprising an electric power consumption table which is an electric power fee mode table for differentially applying multiple step electric power use rates such as 50%, 75%, 100%, 150%, and 200% according to electric power supply and demand states on the basis of a real time clock comprised of year, month, time, minute, and second. 10. The value store electric power meter of claim 4, comprising a non-volatile memory storing a characteristic 3 byte ID number and recording an electric power use state during a certain period of hours, days, or months for remotely monitoring the surreptitious or abnormal use of electric power and performing an electronic sealing function. 11. The value store electric power meter of claim 4, comprising an LCD display for visually displaying the balance of the value, the transfer state of the value, the real time electric power consumption status, and the accumulative electric power use states. 12. The value store electric power meter of claim 5, wherein the value store electric power meter which can be used for simple and sound fee payment means by a SET electronic commercial transaction process using n

Description

The present invention relates to an electricity meter with storing a value made according to a new concept, and more specifically to a value storage method by which the electricity supplier server or the electricity reseller transmits the value via the power supply modem and stores the value in a stored value module (MRZ) or card with IP and to an improved electricity meter and direct payments without the need to read the meter.

Prior art

The well-known electricity meter (kilowatt-hour meter) designed to measure the amount of electricity consumed per hour over a certain period of time with the help of a worker who reads the meter readings is still used in all institutions that consume electricity, such as houses, institutions and public buildings. This first-generation electricity meter is managed in a very complicated and expensive way that a worker taking meter readings visits places where electricity meters are installed for houses or institutions and checks the difference between the amount of energy consumed recorded in the previous measurement and the amount of energy consumed registered at the time of measurement, that is, the amount of energy consumed per month or a certain period of time. The supplier completes the calculation of the electricity supply and consumption results, after which the bill is printed and mailed to the consumer after the completion of the computational process, such as data entry and calculation of the consumption amount, and then the consumer makes a request for payment information, pays and processes the request. The invoice must be mailed again for debt processing and non-payment.

Since there are fraudsters who take on the role of workers taking meter readings, and the cost of measurement makes a large contribution to the cost of electricity supply due to the increase in personal expenses of the worker taking the meter readings, the electricity meter with remote measurement, which is the second generation device, is considered as a new method of measurement and is currently not widely used. You can reduce the personal expenses of a worker taking a meter reading by using an electricity meter with remote measurement. However, it is necessary to process on the computer the amount of electricity consumed on a monthly basis, send an invoice by mail and handle debts. In practice, the supplier and the consumer avoid remote metering of the electricity meter, which also applies to gas and water meters, which require additional energy and a communication line, such as a telephone line or radio. This is due to the increase in cost caused by the operation of the gas meter and the water meter, the server of the remote measurement center and the installation and operation of communication equipment in accordance with the addition of a communication function for remote measurement.

Therefore, it is possible to consider a third-generation electricity meter with payment on an IC card that does not require a visual measurement. The electricity meter with payment on the IP card allows, to some extent, to solve the problems of electricity meters of the first and second generations. However, the efficiency of an electricity meter with payment on an IC card depends on how to carry out the processes of repeated payment and calculating information about the value in the IC card. In particular, when the power is cut off due to the complete use of the value information on the IP card, an unforeseen situation may occur.

Brief description of the invention

The first objective of the present invention is to perform value storage and transfer methods in which an electricity supplier server or an electricity broker communicates with electricity meters with storing the values of the respective subscribers, stores the value in the stored value module (MRZ) inside the electricity meter with the value stored according to the present invention, and transmits information about the value of the added credit, and stores information about the value of the added credit in the map check with IP. Accordingly, suppliers and intermediaries create high added value for consumers by improving management efficiency and significantly reducing the cost of electricity.

The second objective of the present invention is to perform a method of storing a value on an IC card, by means of which information on the value of a credit can be used, which is transmitted through the power grid to all meters installed in houses and factories, such as a gas meter, water meter and calorimeter, designed to measure thermal energy, which are installed and operate offline.

The third objective of the present invention is to perform an electricity meter with a storage value, by means of which the electricity supplier or the electricity intermediary can improve management efficiency by providing communication with the main computer of an authentic agent through the power grid modem and transmitting information about the value of the credit and storing information about the value of the credit in the card with IP. Accordingly, it is possible to reduce the cost of electricity for consumers due to a significant reduction in incidental costs that relate to the supply of electricity, and omit the input and calculation of the amount of electricity consumed during a certain period of time by using the server to print bills and send them by mail and calculate bills.

The fourth objective of the present invention is to implement an electricity meter with a value storage, through which all the problems of the first, second and third generation electricity meters can be completely solved, re-debit the value quickly and easily, and debit the added value on the IC card using the debit channel values. Accordingly, an electricity meter with a value storage can be used in various meters, such as a gas meter, a water meter, and a calorimeter.

Accordingly, it is possible to increase the efficiency of various types of business.

Accordingly, in order to solve the above-mentioned tasks, an electricity meter was performed with a value stored to maintain communication with the electricity supplier’s server through the power grid modem that enters the electricity meter, storing the value information in the value storage module located inside the electricity meter, calculating the value in accordance with the amount of electricity consumed and stopping the supply of electricity in the case when the value of the loan is fully consumed.

According to an aspect of the present invention, a method of storing credit information in a value storage module located in an electricity meter with value storage is implemented by maintaining communication between a host computer and each terminal via an electricity modem that enters an electricity meter with a value storage that is a terminal containing the stages in which (a) the host computer generates the first arbitrary data, sends the first arbitrary data to the terminal, generates a session key using an algorithm the key generation using the terminal's internal secret key, generates the first signature value using the signature generation algorithm for comparison during terminal authentication, and the terminal receives the first arbitrary data and generates the session key in the same way as the host computer (b) generates the second value of the signature using the signature generation algorithm and the second arbitrary data and sends the second arbitrary data to the main computer, (c) the main computer compares the first and second characters signature and authenticates the terminal, while the host computer generates the third signature value and sends the third signature value to the terminal with information about the amount of money when the terminal is authenticated, and the terminal receives the third signature value and information about the amount of money from the host computer, produces the fourth the signature value and authenticates the host computer by comparing the third and fourth signature values with each other, and (b) the terminal increases the value by decoding the information on k The amount of money and sends the value obtained by encrypting the balance and terminal identification number using the encryption algorithm to the host computer, and the host computer receives the encrypted value, decodes the encrypted value, compares the stored terminal identification number with the decoded terminal identification number, authenticates the terminal again and creates a backup of the remainder in the recording file when authentication is complete.

In accordance with another aspect of the present invention, an electricity meter with a value storage is included that includes an input and output terminal of an electrical network for measuring the amount of electricity used, containing a work portion of the electric power consumption for measuring voltage and current of the electrical network and calculating the electric power used, an electricity modem for performing data communication between the main The computer and the terminal through the power grid, part of the secure storage, which includes the secure access module (MBD), having a central processing unit (CPU), and an encryption key, and an encryption algorithm for storing a value, and a module for storing a value, to prevent fraudulent use of value information and unauthorized access, to exclude a cryptographic attack, and the need for an MDB authorization process when requesting a marker from the MRZ, two-position self-holding relay switch to turn off the power supply in accordance with the result of the remainder of the MRZ and a marker exchange unit to reduce the marker from the value information and, which is entered from the MRZ in accordance with the amount of electricity consumed per unit of time, while the MRZ makes a request for a new marker in the marker storage when the internal marker is exhausted.

An electricity meter with a value storage preferably further comprises a part for recording and reading a card with

ICs that can be used with other meters, such as water, gas and heat meters, by inserting an IC card into an electricity meter, receiving a value from a main computer operating in a non-autonomous mode (online), recording the received value onto an inserted card with IC and reading the received value from the card with the IC.

The part for recording and reading the IC card is preferably applied with water, gas and heat meters using the IC card method, which works offline, by writing the added value for things such as gas and water to the IC card via an electricity modem , through which you can save the value of electricity in the card with IP by including a communication port, which consists of eight conclusions defined by the standard Ι8Θ 7816 (part 2), which have the conclusions Uss, S1k,, Century! and St. Petersburg for synchronous and asynchronous communication with the card with IC.

The energy meter with the stored value preferably further comprises an AC-to-DC converter for supplying the operating voltage required for the electricity meter, an energy consumption sensor for detecting that electricity is normally used in the case that the sensor output is 0, and that the leads are bypassed, and the electric power is secretly used in the case when the output signal of the sensor is 1, and the buzzer to generate an audible alarm and give an indication of ELSE perform the storage and transmission of values when passed the last token by requesting a new token from the IGC after the exhausted remnant markers exchange unit.

The operating part of the power consumption preferably contains a shunt resistance for measuring the magnitude of the alternating current, a voltage divider for connecting two resistances in series and selecting from the voltage range specified by the two resistance ratios in order to regulate the alternating voltage of the electrical network within the input voltage range of the voltmeter, analog-digital converter to convert the AC signal that flows through the shunt resistance into numbers A 16 or 20-bit digital signal and an analog-to-digital converter for converting an ac voltage into a 16-bit digital signal, in which the voltage phase is compared with the current phase, and the angle between which the two phases differ from each other is calculated and output as a signal for the application of differentiated tariffs.

The electricity meter with the value storage preferably additionally contains a table of consumed electricity, which is the table of the mode of payment for electricity for the differential application of electricity tariffs in several stages, such as 50, 75, 100, 150 and 200% in accordance with the conditions of demand and supply for electricity based on a real-time period consisting of year, month, hour, minute, and second.

The energy meter with the value stored preferably contains a non-volatile memory in which the characteristic 3-byte identification number is stored and in which the state of energy use is recorded for a certain period — hours, days or months — for remote control of secret or abnormal use of electricity and performance of the function electronic printing.

An electricity meter with a value storage preferably comprises an LCD display for visually displaying the remainder of the value, the transmission status of the value, the power consumption status in real time, and the states of the total electricity usage.

An electricity meter with a value storage that can be used for simple and sound payment of duty through the 8ET electronic business transaction process using next-generation credit cards and credit cards for direct payment to HEU'96 in conjunction with an IC card writer and reader, such as a telephone, the Internet, P-ATM (EMU'96), and a digital intercom to perform audio communication with the person who heads the main server, or to transmit audio o Messages to assist the user on issues such as the storage device and keypad for the user directly requesting the value to be saved.

A terminal for the input and output of electricity of an electricity meter comprising a cover and a physical seal to prevent physical branching, preferably prevents the secret and abnormal use of electricity.

An electricity meter with a value storage preferably further comprises a spark gap circuit designed to remove lightning and voltage surges through the supplier’s power grid.

The electricity meter preferably allows you to request a voice message from the service-related person using the loudspeaker and switch on the auxiliary keyboard of the digital intercom system. The process of transferring and storing credit values is facilitated by a person associated with the transfer of a voice message service to a subscriber.

Brief Description of the Drawings

The invention is illustrated with reference to the accompanying drawings, where FIG. 1 is a flow chart illustrating a method for transmitting and storing a value in accordance with the present invention;

FIG. 2 depicts an algorithm illustrating a sequence of commands correcting a multi-step differential payment mode (exchange of an electricity payment system) by hour, day, month and season as applied to an electricity meter with a value stored in accordance with the present invention;

FIG. 3 depicts an algorithm illustrating the processes of monitoring abnormal energy consumption, such as conductivity, and preventing illegal consumption by comparing the total energy used by subscribers in the electricity meter, according to the present invention, per unit time, such as days, weeks, or months, with the total amount electricity consumed per unit of time;

FIG. 4 schematically shows a signature generation method and an encryption method as used in the present invention;

FIG. 5 is a block diagram showing the internal structure of an electricity meter with a value storage according to the present invention;

FIG. 6 illustrates the structure of a system according to the present invention for describing the flow of information about a value; and FIG. 7 is a perspective view showing the appearance of an electricity meter with a value storage according to the present invention.

The preferred embodiment of the invention

The method for transmitting and storing the value in accordance with the preferred embodiment of the present invention and the structure and operation of the electricity meter with storing the value without the need for visual measurement using a meter using the same is described in detail below.

The present invention can be used in an electricity meter, a gas meter, a water meter and a calorimeter, which are based on using methods for calculating direct payment and prepayment in conjunction with an electronic wallet method. In this case, the present invention will be limited to an electricity meter solely for the sake of convenience. In addition, in all communication processes of transmitting and storing values according to the present invention, the basic encryption algorithm for triple SDS is used (ΌΕ8, data encryption standard).

The connection between the main server computer and the electricity meter terminal is as follows. First, in the server and in the terminal solve the problem of creating a key (KB) session. The encryption algorithm for triple DAS is used through the session key. In addition, when the task of creating a signature is necessary, then MAS CBC is applied using triple BSS. When the values are stored in the terminal of the electricity meter, the values memory, the table of the mode of calculating the use of electricity, the unit payment and the time that will be adjusted are saved. When reading values from an electricity meter terminal, read the details of the use of the loan balance, date, month and year, the table of the mode of calculating the use of electricity, the unitary payment and the timer clock, thus obtaining information to detect abnormal use.

Prior to describing the method of transmitting and storing values according to the present invention, first will be described with reference to FIG. 4 examples of signature generation and the encryption algorithm used in this case.

After the task of creating a key (KB) of a session in the server and terminal through communication between the server and the electricity meter with storing the value, the encryption algorithm of triple DAS is applied through the key (KB) of the session. MAS SVS using triple SDS can be used for the task of generating a signature. Below with reference to FIG. 4 details signature generation and encryption algorithm.

To generate signatures, the values of the original data are made multiples of 64 bits, while applying the padding in step 1. This is represented as |. ... and Ό _Ν in FIG. 4. At stage 2, the values (Ό _Ν ) of data from 64 bits are encrypted in E, applying a triple SDN, in accordance with the input key K. Signature values have the form _s ... and Ον (stage 3). In this case, the values obtained by adding the corresponding values of Ό _ν data to the values (Θ _ν-1 ) of the signature, except for the first value of the O ₁ signature, are encrypted according to E.

To encrypt, the values of the original data are made multiples of 64 bits, while applying the padding in step 1. This is represented as ... and Όν. At stage 2, the triple DAS algorithm is applied to encryption by E. Encrypted messages are O ₁ , ⁺ ..., ⁺ Ο _ν (step 3).

The master key (CN) of the main computer, the internal secret key (QD) of each terminal and the secret key (KB) of the session used in the communication process are used, each of which has a value of 128 bits. The internal key (CT) of the terminal is generated from the main key (CN) of the main computer. The session key (KB) is generated from the terminal's internal key (CT). The master key of the host computer (QN) and the terminal's internal key (QD) are chosen arbitrarily from different sets.

The internal key (CT) of the terminal is generated by encrypting the GO (identifier) of the terminal using the triple BSS algorithm using the master key (KN) of the host computer. The internal key is stored in the terminal at the stage of development and is produced in the main computer at the initial stage of communication. That is, CT = Epegur1 (ΙΌ, CN) (epsgur1 - encrypt).

The session key (Cs) is generated by encrypting random numbers B that are generated in the main computer using the triple BSS algorithm using the internal key (CT) of the terminal each time a link is executed. All encryption is performed using the session key (KS) during the communication process. That is, Кз = Епсгур1 (В, КТ).

In the present invention, algorithms are selected (1) value storage commands, (2) differentiated tariff mode management commands based on hours, days, months or seasons, and (3) use for days, weeks, or months, and a timer information verification command (accepted control abnormal work). A description of their work is given below with reference to FIG. 1-3.

First, the sequence of operations of the value storage command will be described with reference to FIG. one.

STAGE 10. The host computer first generates random data (B1, B2 and p) and sends the first random data to the terminal. The session key is generated using the key generation algorithm using the internal secret key (CT [n]) of the terminal. That is, Кз = Епсгур1 (В1, КТ [п]). For comparison, in the process of establishing the authenticity of the terminal, the first value of 811ι = 8ίβ (B2, Kz) signatures is generated using a signature generation algorithm. The terminal receives the first random data (B1, B2, and p) and generates a session key in the same way as is done in the main computer using the internal secret key (CT [n]) of the terminal. That is, Кз = Епсгур1 (В1, КТ [п]).

STAGE 12. The terminal generates the second value 811 = 8ί§ (B2, Kz) signatures using the signature generation algorithm, generates the second random data B3 and sends 811 and B3 to the host computer.

STAGE 14. The host computer can authenticate the terminal by comparing 811 with 811. When the terminal is authenticated, the host computer produces the third value 8211 = 8f (H + B3 + EpAtp1, Kz) of the signature and sends 8211 to the terminal with encrypted information (EpAtp1) regarding the total amount of money. In this case, H is the header, which is the value storage command.

The terminal generates a fourth value of 821 = 8 pc (H + B3 + EpAtp1, Cs) signatures and authenticates the host computer by comparing 821 with 821.

STAGE 16. When the host computer is authenticated, the terminal increments the value, encrypts Ba1apse + GO in the form of M = Epsgur1 (Ba1apse + 1E. Kz) and sends the encrypted value M to the host computer. The host computer authenticates the terminal again by decoding the encrypted M value as Bau1apse '+ GO' = Pesgur1 (M, Kz) and comparing ΙΌ 'with GO. When the terminal is authenticated, the remainder is stored in the recording file.

The sequence of operations of a differentiated board mode control command based on hours, days, months, and seasons (board system) is described below with reference to FIG. 2

STAGE 20. The host computer generates the first random data (B1, B2 and p) and sends the first random data to the terminal. The session key is generated using a key generation algorithm using a secret key (CT [n]). That is, Кз = Епсгур1 (В1, КТ [п]). For comparison, during the authentication of the terminal, the first value of 811 = 8ί§ (B2, Kz) signatures is generated using the signature generation algorithm. The terminal receives the first random data (B1, B2 and p) and generates the session key in the same way as the main computer using the internal secret key (CT [n]) terminal. That is, Кз = Епсгур1 (В1, КТ [п]).

STAGE 22. The terminal generates the second value 811 = 8cm (B2, Kz) of the signature using the signature generation algorithm, generates the second random data (OT) and sends 811 and B3 to the host computer.

STAGE 24. The host computer can authenticate the terminal by comparing 811 with 811. When the terminal is authenticated, the host computer generates the third value 821ι = 8ίβ (H + OT + Moya + Ipj, Kz) (Moya - Mode, Is1 Block) of the signature and sends the third value signatures to the terminal along with information about the mode and information about the single board. The terminal generates the fourth value of 821 = 8 pc (H + VZ + Moye + Ip, Kz) signatures and authenticates the host computer by comparing 821 with 821.

STAGE 26. When the host computer is authenticated, the terminal converts the payment system, encrypts Ba1apse + GO as M = Epsgur1 (Ba1apse + GO, Kz) and sends the encrypted value M to the host computer. The host computer authenticates the terminal again by decoding the encrypted M value as Ba1apse '+ GO' = 0 Unsur1 (M, Kz) and comparing GO 'with GO. When the terminal is authenticated, the remainder is stored in the recording file.

In summary, the sequence of use operations for days, weeks, or months, and the timer information verification command (which is used in monitoring abnormal use) are described in detail below with reference to FIG. 3

STAGE 30. The host computer generates the first random data (K.1, K2 and p) and sends the first random data to the terminal. The session key is generated using the key generation algorithm using the internal secret key (CT [n]) of the terminal. That is, 1 <5 = Epsgur1 (K1, CT [n]). First value

811ι = 8ίβ (K2, K§) signatures are generated using a signature generation algorithm for comparison during terminal authentication. The terminal receives the first random data (K1, K2 and p) and generates a session key in the same way as is done in the main computer, using the internal secret key (CT [n]) of the terminal. That is, K§ = Epsgur1 (K1, CT [n]).

STAGE 32. The terminal generates the second value 811 = 8f (K2, Kg) of the signature using the signature generation algorithm, generates the second random data (K3) and sends 811 and a short-circuit to the main computer.

STAGE 34. The host computer can authenticate the terminal by comparing 811 with 811. When the terminal is authenticated, the host computer produces the third value 821 = 8 ίβ (H + K3 + T1te, Kg) (T1te-Time) of the signature and sends the third signature value to the terminal together with T1te. The terminal generates a fourth value of 821 = 8ϊ§ (H + K3 + T1te, K§) signatures and authenticates the host computer by comparing 8211 with 821.

STAGE 36. When the host computer is authenticated, the terminal encrypts the information file (1pGo), including the details of use (Bod), the table of the differentiated payment mode (MoETV), the terminal time (Pteg), the remainder (Ba1apse) and the identifier GO.

That is, the terminal encrypts 1HR with the help of M = Epsgur1 (1Hr. K§) and sends the encrypted value M to the host computer. In this case, 1HR = Eod + MoETV + Balance + GO. The host computer once again authenticates the terminal by decoding the encrypted M value with the help of RHG '= Pesgur1 (M, K§) and comparing GO' with GO. When the terminal is authenticated, it is duplicated in the recording file and the usage is checked for days, weeks, or months and the timer information.

The encryption algorithm stored and transmitted values in relation to the present invention has been described above. In order to apply it to a real electricity meter, you need to consider the following questions.

The maximum number of electricity meters with a storage value that can be connected to a single-column transformer is limited to 256. In a pole transformer designed to convert 3.3 kV voltage into 220 V supply voltage, one local maintenance and control unit (LOC) manages 250 electricity meters with value storage. LOC blocks, having different sequence numbers, are connected to the second side of various pillar-type transformers. One zone service and control unit (OCR), connected to a maximum of 256 LOC units, can manage 65,536 electricity meters with value storage. With the management of 256 LOCs, one local server in the tree structure can manage up to 16000000 OCR. However, when considering the station's performance and efficiency, it is preferable that the maximum number of electricity meters with the value stored controlled by the local server is limited. The identifier GO of 3 bytes is allocated to the general user of the power grid modem and the electricity meter modem (mic) for the case in which the signal passes over a pole transformer to the other side with a voltage of 220 V. Mick, having bus encryption functions, protects the encryption algorithm and encryption key, prevents assignment or may selectively use a secure access module (MDB), which is an IC card of the subscriber identity module (MIA) type. The calculation of the amount of electricity, the marker drive and the display can be performed using an additional microcontroller. In this case, it is checked whether the LCD display is obstructed and the calculation of the use of electricity is interrupted when the amount of electricity is in communication with the host computer. It is believed that there is a time limit in the provision of time information in the electricity meter. That is, if it takes one second to transmit information about the time to one family, then it is necessary to spend 1 hour to transmit information about the time to 3,600 families. The real-time clock is loaded into the electricity meter and the differentiated payment is used in accordance with the time periods. The time of the clock is always adjusted and controlled. Abnormal use of electricity is monitored or used by digital printing for the case in which a tap or unauthorized access is performed by connecting a power modem to a PC.

Digital printing is systematically implemented by combining the functions of software and hardware. Digital printing to monitor the abnormal use of electricity is implemented using a method in which the terminal transmits details of the amount of power used at a certain point in time over a period, such as hours, days of the week or years, to the server in the form of 2.44 kbytes of information. The server logs the information into the database, compares the recorded information with the information that will be transmitted at the next point in time, compares the result of the comparison with the total amount of electricity used over the same period. When voltage is applied to the output terminal in a state where the self-holding relay shuts off the power supply, it is determined that there is a secret use of electricity. Accordingly, the emergency information is transmitted to the station.

The total number of details of the plant's electricity use can be used as the basis for creating an agreement on prices that are beneficial for re-contracting by applying a reserve ratio during the purchase of electricity by estimating the use of electricity over a period of several days, months or seasons based on the total amount of electricity used over a period of hours, days, months, or seasons.

When the circuit breaker interrupts the power supply due to the fact that the stored credit value becomes exhausted, the interruption due to overcurrent, interruption in a particular case or use of electricity by discharging the source of electricity at the meter input and abnormal use of electricity are detected by the voltage presence check method load.

The value of the loan is transmitted and stored in the electricity meter, gas meter, water meter and calorimeter through the power grid modem. The value of the electricity loan is stored in the MRZ and the remaining values are stored in the respective areas of the electronic wallet of the IP card.

The structure and operation of the electricity meter is described in more detail below with consideration of the above issues with reference to FIG. 5-7.

FIG. 5 depicts an electricity meter that transmits and saves value information via a power modem. FIG. 5 self-holding relay 1 is a two-position self-holding relay-type switch for interrupting power supply. Shunt resistance 2 measures alternating current (AC) with manganese (Mp) resistance 0.1 mΩ. When the self-holding relay 1 is in the open state, the power consumption sensor 3 registers normal use, the sensor output signal is 0, and when pins 18 and 1b are bypassed and electric power is used secretly, the sensor output signal is 1. Buzzer 4 requests a new the credit value marker in the MRZ after the remainder of the marker exchange block 10 is used up, and generates an audible alarm signal, thus directing the transfer of the credit value and storage with the help of the user of electricity ii. Card 5 with the IC of storing the value / added value of the credit registers the serial number of the card (SNK) of the subscriber of the card with the IC in the management database using the master key of the electricity intermediary controlling the electric meter with the stored value of the credit according to the present invention when the server is requested to transfer the value of the loan, thus preventing illegal use of electricity.

The voltage divider 6 sets an alternating voltage of 117, 220 and 240 V, which is within the range of the input voltage of the analog-to-digital voltage converter (ADC). The voltage range is chosen using the ratio of two resistances that are connected in series. ATSPN 7 is a circuit for converting an analog AC voltage signal into a 16-bit digital signal. Analog-to-digital current transducer (ADCT) 8 is a circuit for converting an AC signal that flows through a shunt resistor 2 to a 16 or 20-bit digital signal. The power consumption circuit 9 calculates the electrical power (in Watts) by multiplying the digital signal of the ADCN 7 by the digital signal of the ADCT 8 and converts the result of the multiplication into a pulse number and a width signal. The power consumption circuit 9 compares the voltage phase with the current phase, calculates the angle by which the two phases differ, and outputs the phase difference as a signal, thus applying differentiated tariffs to things that temporarily use induction loading. The block of exchange of markers 10 reduces the markers in accordance with the amount (W / h) of electricity consumed per unit of time, makes a request for new markers from the accumulator of 10-element markers when the markers located inside the block 10 of the exchange of markers are consumed, and reduces the new markers in according to the amount of power consumed. If the 10-element markers drive is used up, 100-element markers are required for the MRZ, which will be described later, and the 10-element markers drive is filled again. The markers requested for the MRZ 166 can be obtained as a result of the MDB 164 authentication process. based on a real-time clock consisting of year, month, day, hour, minute, and second (YYMMDDHHMMSS) (ΥΥΜΜΌΌΗΗΜΜ88).

Block 12 of recording and reading of an IP card, corresponding to the International Organization for Standardization Standard No. 8Ι 7816, is a communication port, which consists of eight terminals defined No. 8 No. 7816 (part 2), including Uss, S1k, ΌΙΘ, Keke! (Reset) and St. Petersburg (Earth), for synchronous and asynchronous communication with the card with IC. Multipurpose credit values for things such as electricity, gas, water, hot water, heat energy and TV fees are recorded on the same IC card by inserting the IC card in the normal way using an off-line / off-line electricity meter. After recording the value transmitted from the gas service station through the electricity meter with storage and transfer of the value on the IC card, the IC card is pulled out, inserted into the gas meter and the value information is transmitted to the gas meter, thus reducing the value information on the card according to with the amount of gas used. Accordingly, the electricity meter with the storage and transmission of values can be operated offline.

The modem 13 of the electrical network communicates data through the electrical grid. Each modem is assigned one among the 256 addresses of the identifier of the GO modem grid (IMES). The variable / constant power source 14 provides the operating voltage that is needed for an electricity meter with a storage value in accordance with the present invention. The three-byte identifier, which is the internal number of the electricity meter with the value stored, is written to the ROM during the manufacturing process. The non-volatile memory 15, which consists of a flash memory, records the situation of electricity consumption for a certain period, that is, the details of the electricity consumption for 24 hours are detected by recording the amount of electricity consumed by the electricity meter with storing the value as 16-bit information every 60 seconds, weekly electricity consumption details by adding seven total daily electricity consumption amounts and monthly electricity consumption details by adding Ia thirty total amounts of the daily electric power consumption to each other, controlled by the secret use of electricity or an abnormal power consumption in a remote distance, and operate the electronic seal. The encrypted bus 16, which includes the central processor (CPU) 162, the secure access module (MDB) 164 for storing the encryption key and the encryption algorithm for storing the credit value, and the stored value module (MRZ) for storing the credit value, prevents fabrication and use information about the value of the loan and unauthorized access and excludes cryptographic attack. The LCD 17 LCD displays information such as the balance of the credit value, the transmission mode, the real-time power consumption situation and the accumulated power consumption situation that the user can visually distinguish. The terminal 18 for input and output of the electrical network consists of 1k, 28, 2b and 1b for connecting the input and output lines of the electrical network to each other and a cover to prevent physical junction (connection to the electrical network). The discharger 19 is a circuit for removing lightning or overvoltage.

An electricity meter for measuring a particular type of electricity has been described above. However, the electricity meter according to the present invention allows to measure electricity of at least two types, including a voltage divider 6, ATSPN 7, ATSPT 8, a self-holding relay 1 and a shunt resistance 2 according to the type of electricity. That is, when a voltage divider, ADCN, ADCT, self-holding relay and shunt resistance are combined so that at least two types of energy source with different voltages can be used selectively or simultaneously, while additionally measuring and controlling the corresponding amounts of current .

Below is a description of the operation of an electricity meter with a storage value having the above structure. As mentioned earlier in relation to the electricity supplier or electricity intermediary, the credit value from the host computer is stored in the MRZ 166 of each terminal via the power network modem 13 using the credit value storage method, each electricity meter calculates the charge according to the amount of electricity consumed using the consumption circuit 9 electricity, compares the calculated fee with the remainder of the information about the value of the loan stored in MRZ 166, and calculates the fee through the block 10 exchange of markers. When the remainder, which does not exceed a certain amount, remains in the MRZ 166, the user receives information regarding the state of the remainder using the buzzer signal. When the balance is not enough, the credit value is transferred from the host computer to the MRZ 166 using the aforementioned method of storing the credit value or the power supply is interrupted due to the actuation of the self-holding relay 1. Information about the value of the loan can be stored in the MSZ 166 by maintaining communication between the host computer and the terminal located in the electricity meter with the value stored according to the present invention. However, it is possible to transfer information about the value of electricity stored on the IC card 5 to the MRZ and store the transmitted information in the MRZ by inserting the IC card 5 for electricity, gas, water and heat intended for a family or institution from which A certain amount of money is recorded in an electricity meter with the value stored according to the present invention.

That is, the electricity meter of the present invention displays information, such as the monthly consumption amount and the remainder of the card, on the LCD 17 installed in it using a certain amount of electricity in the range of values recorded in the MRZ, and the buzzer 4 sounds when the remainder , not exceeding a certain amount, remains on the card. Accordingly, the user requests the server in order to transfer the credit value. The value of the loan is automatically paid on the account, pre-issued in the bank, or paid by credit card. The value of electricity is received online via the grid and is stored in the MRZ 166. The value is reduced in accordance with the scale of electricity use.

Accordingly, the electricity supplier and electricity intermediary can receive savings due to the lack of processes for reading the meter, entering and calculating the amount of use and printing and mailing the bill. Electricity bills can be paid in advance. Accordingly, there is no re-payment of debts. In addition, it is possible to reduce the electricity bill due to the benefits of the advantage of prepayments, the use of differentiated payment in accordance with the time of electricity use and savings in the difference between the purchase price of electricity and the sale price of electricity. The electricity seller can manage the added high values in commercial activities.

In order to prevent the use of a forged card that differs from an IP card issued legally by an electricity supplier or an electricity intermediary, MDB 164 for card authentication is loaded into an electricity meter. When the card is inserted into the terminal, the terminal and the card authenticate each other. When information about the amount of money on the card is transmitted through the terminal as a credit value, the terminal operates in accordance with the encryption process, which is shown in FIG. 1. Accordingly, the use of a forged card is prevented. The method of volatility of the encrypted key, thus disconnecting the terminal, during meter dismantling, can be considered directed against a hacker cryptographic attack, such as dismantling an electricity meter with storing value in order to fake a terminal or card. However, the encryption algorithm and the encrypted key located inside the terminal have only a decrease quantity key, in which information about the credit value is reduced in accordance with the amount of electricity consumed. Accordingly, it is impossible to increase the amount of money or information about the value of the loan. In particular, in the present invention, when a user / subscriber contacts a LC8 server via a telephone or digital intercom in order to fulfill a request for the transfer of a credit value, the amount of use is selectively adjusted using a credit card or bank account. The process of transferring the value begins within the range in which payment is guaranteed. The process can be performed via the Internet. In particular, it is possible to automatically transfer the value in the case where the value saved by the contract for automatic transfer of the bill between the electricity seller / electricity broker and the financial institution is reduced to a certain scale for people who have never used a computer or information network. In particular, in the case of trading with a payment request using the 8ET e-commerce process with a direct payment card, the server operating as an electronic store may place the trade details in a digital envelope (CC), which has the effect of a signature of the trade details. Accordingly, the trading process cannot be rejected or forged.

The process and implementation condition of the present invention is described in detail below.

1) The processes of generating, transferring and storing credit values.

Information about the value of the loan is generated by providing communication and working with the subscriber management database using the master key (Mk) of the electricity seller or electricity intermediary. The identification number of the subscriber who requests the modem of the local area network (LAN) of the electrical network is selected through the zone service and control (ZOK) and local service and control (LAN). When the request for subscriber ID and communication is completed, the validity of the server and the terminal is authenticated using the above authentication process. When authentication is completed, the requested information about the value of the loan is transmitted. Information about the credit value transmitted via the power grid is stored in the stored value module (MRZ).

2) Processes of transfer and storage of the added value.

The effectiveness of the present invention is increased by adding an added value transfer function that can be used in conjunction with electricity, gas, water, heat and hot water meters, which operate autonomously with an IC card without a separate communication line. The generation and transmission of the added value is performed using the aforementioned value generation and transmission processes. The added value is stored on the IC card instead of the electricity meter. Information about the added value for things such as gas, water, hot water and heat energy that is stored on the IC card can be operated, entered into the water and gas meters that work offline using IC cards that are compatible with an IP card described in Korean patent applications 98-6947 and 986948 by the same applicant. Accordingly, management efficiency is maximized.

3) Consumption of information about the value of the loan.

Information about the value of the loan, which is stored in MSZ 166, is reduced in the block of exchange of markers (OM) 10 in accordance with the amount of power consumed. The marker is decreasing per unit of time by a few milliwatts, a few watts or several kilowatts. When the minimum block token has been exhausted, the credit value information is reduced through the process of requesting a new token.

4) Differentiated application of the tariff of electricity consumed.

The mode of use of electricity, which allows you to differentiate gradually apply the tariffs for the use of electricity in accordance with the intervals of working days and weekends, seasons and months, in which the amount of the used credit value is selected using the program and applied automatically. In Table 11 of the mode of electricity consumption, you can differentially apply different tariffs according to time intervals and characteristics of electricity supply and demand, electricity supply, and use, for example, 100% during daytime on workdays, 75% discount before and after daytime in working days, 50% discount at midnight, a surcharge of 200% for daily working hours and a surcharge of 300% in the summer from 14.00 to 16.00, when the use of air conditioners increases dramatically, is applied using a real-time clock (VFD). Since a separate OM 10 is applied with respect to the same amount of electricity use, the stored credit value is applied differentially. Accordingly, the power consumption becomes optimal during each time interval. Thus, the efficiency of demand and supply of electricity is maximized. Consequently, the cost of electricity decreases.

5) Balance check and automatic shutdown.

Information about the value of the credit of the MRZ 166 is displayed on a display device such as a liquid crystal, so that the user can check the balance at any time. When the credit value is exhausted, the marker exchange unit informs the user that the last markers are being used by means of an audible frequency alarm. In the case where the credit value is not re-paid before the last marker is used up, the power supply is stopped by sending a trip signal to the self-holding relay, which is connected in series to the power grid.

In order to satisfy the above-mentioned various processes and implementation conditions, the present invention can be used in conjunction with various gas and water meters, where it is possible to transfer the added value using an IC card based on an electricity meter with storing the value and transferring the value, in which case it is not necessary to read the meter based on the following structures and principles.

An energy meter with a value storage according to the present invention measures voltage (V) and current (A) in real time, calculates the amount of electricity (W) using an electricity consumption scheme, measures electricity consumption per unit of time, converts information about the stored value into a marker, reduces the marker in accordance with the amount of electricity consumed per unit of time in block 10 of the exchange of markers and requests information about the new value of the loan when the marker is exhausted. In addition, all the information that the user needs to know, such as the amount of information about the residual value of the loan and the state of power consumption of electricity, is displayed on the screen 17 of the liquid crystal display. When the information on the last credit value is converted in the form of a marker, the user is informed with an alarm signal having an audible frequency. Accordingly, the value of the loan is re-paid.

When the internal value information is exhausted, the power supply is stopped by opening the relay 1 with self-holding.

In the table (ТР) 11 modes, with the help of which you can differentially apply the electricity tariff using at least five stages, the real-time clock (RTC) allows you to differentially apply electricity tariffs depending on different phases, such as 50, 75 , 100, 200 and 300%, in accordance with the time zone and reduce the amount of information about the value of the loan. That is, although the same electricity is used per unit of time, the value of the MRZ loan is differentially reduced, since OM 10 applies multiple stages of using electricity tariffs using a temporary program defined in the TP credit. Accordingly, the electricity consumption becomes optimal during each time zone. Consequently, the demand and supply of electricity is well balanced. When using the system of payment for electricity at various stages, the user can benefit from the discount in accordance with selective use. For example, at night, when electricity supply is excessive, the tariff for the supplied electricity to electricity suppliers may be lowered. When air conditioners are used extensively in institutions in the summer, the surcharge is paid for the electricity consumed. Accordingly, a consumer of electricity located at home or in an institution may be given a discount.

An energy meter with a value storage according to the present invention has a bus structure with encrypted data, in which the CPU 162 and the internal memory cannot be read by an unauthorized person, in order to prevent the stored value from being counterfeited and cryptographic attacks. An electricity meter with a value storage consists of a secure access module (MDB) 164 into which you can download a secret internal key (CT [n]) and an encryption algorithm and a stored value module (MRZ) 166. If a hacker or a person trying to open the encryption, unmounts The electricity meter in order to fake information about the value of the loan, the encrypted key and the encrypted algorithm of the MDB and MRZ should not be visible. MDB, MRZ and master key (Mk) of the host computer authenticate each other. Thus, MDB and MRZ can transmit and save information about the value of a loan using the above processes using the master key. MDB and MSZ can store information about the value of the loan and information about the added value in the card with

Master key IP. When the IC card is inserted into the electricity meter, the reset response signal (ONS) is received by sending the reset signal to the card, the IC card and the terminal authenticate each other, the credit value information is exchanged through the MRZ and MDB, and the credit value information is calculated in regarding the legitimate use of an IP card. Information about the value of the loan is recorded using an encrypted key (Mk) by the requesting party. Therefore, it is impossible to increase the value of the loan. Such processes are performed with the consent of the International Organization for Standardization (ISO) 7816 (Part 1, Part 2, Part 3, Part 4, Part 8 and Part 10) and contain a physical standard, an electrical signal, a communication protocol and an encryption process. At least two encrypted keys are stored in accordance with the administrator's request. One encrypted key is updated for a certain period of time. The encrypted key is used selectively. Accordingly, fraudulent use of the credit value is prevented.

The transfer of the credit value and the added value and control over the legitimate use of the value is performed via an electricity modem. An electricity consumption sensor circuit is provided, and information on the use of electricity is recorded in non-volatile memory (EOR) 15 to monitor the secret use of electricity and punish illegal use without the need to visit the place where the electricity meter is installed and to verify the seal or the corresponding seal. Such a scheme can be periodically monitored using LOC and OCR, thus performing the function of electronic printing without the need to check the physical seal on the seal.

The electricity meter with the storage value has a 3-byte serial number of the electricity meter with the storage value (SNSEC). The electricity modem 13 communicates with the LOC using the modem identification number (IN-M) address 1/256. When the server of the electricity seller or electricity intermediary sees a request to transmit the value, it begins to communicate over a short section with an electricity meter with the subscriber's value stored in accordance with the addressing process to select the subscriber’s IN-M.

The subscriber requests the transfer of the credit value by contacting an продавца8 electricity seller or an electricity broker by telephone or digital intercom 20 and an auxiliary keyboard 21, choosing to pay with a credit card or bank account and choosing to pay the transferred electricity credit value.

Then, the credit value management server makes a request to transfer the credit value given by ΑΝ, which is issued by the server of the credit card issuer. The server managing the credit value of the electricity seller calls the IN-M through the OLC and LOC, transmits the credit value to the SES and stores the transferred credit value by performing the aforementioned value storage processes.

LOC consistently monitors the state of electricity consumption of up to 256 subscribers who have an electricity meter with a value storage via an electricity modem connected to the 117V / 220V power grid at a maximum distance of 3 km. LOC consistently calls SESZ at addresses 1/256 ... n / 256, checks and re-manages the state of changes in the internal SESZ real-time clock, controls the tariff system mode, checks the SNK of the card, duplicates the balance of the credit value, checks for secret and abnormal use of electricity and downloads reports on electricity consumption for days, weeks, or months, thus summarizing and evaluating the electricity request. Summarization and evaluation of results are used as a guide for agreeing on the price of purchasing electricity and re-controlling the price of electricity supply.

When transferring and storing a loan, gas, water, heat and hot water meters, which differ from an electricity meter, consist of a meter that operates autonomously using an IC card, without a separate communication line, since the plant’s operating modes are poor and network design is very complex. When the information about the added value, which is transmitted through the electricity meter with the storage of the value, is stored on the card with the IC and the card with the IC is inserted into the water, gas and heat meters, information about the added value is stored in each meter. Markers are reduced using the same credit reduction processes. When information on the value of the loan is exhausted, the valve is closed to stop the supply of gas, water, heat and hot water. The effectiveness of the present invention is enhanced by the value added transfer function, in which an electricity meter can be used with storing and transferring value together with the value added service. The added value is generated and transmitted using the same credit generation and transfer processes. The added value is stored on the card with the IC, and not in the electricity meter. Information about the added value for things such as gas, water, hot water and heat is stored on the IC card by performing the above processes, and it can be transferred to water and gas meters that are adapted to work offline and with an IC card that can support the IP card described in Korean patent application Nos. 98-6947 and 986948.

Below with reference to FIG. 6 describes the request for the transfer of credit values and the processes in the electricity modem.

The subscriber of the IC card 52 is issued to those who wish to receive an IC card using the IC card 51 and the master key of the system manager from the reseller 50 of electricity. Immediately after paying the loan value for things such as electricity, gas, water, hot water and heat energy, in cash or with a credit card, the first credit value is stored on the IC card. The credit value of the electricity on the card is stored in the electricity meter by inserting the IC card into the electricity meter with the user value 55 stored. When the IC card is inserted into the gas, water, hot water and heat energy meters of the user 55, the credit value is stored in each meter. After saving the first credit value, another saving of the credit / added value is performed in the process of transmitting the value using an electricity modem. The transmission and storage of the value can be performed using the telephone, the Internet, P-ATM (HEMU'96) and an electricity meter with the storage of the value. The processes of transmitting and storing values are performed by forming the above-mentioned encryption algorithm. The transmission channel of the credit value / value added is described below. The subscriber's record information comes from the subscriber's database from the server of the main computer of the electricity reseller 50. Payment in a bank or in a ΑΝ company is guaranteed by selecting a user from one of the credit card numbers, a direct payment card number and a bank account number. Information about the value of the loan is encoded using the master key MDB. The identifier of the electricity meter with the storage of the subscriber's value is called through the networks of the OCK and LOK. MDB and master key are mutually authenticated. Information on the value of the credit / value added is then transmitted. The local control unit (LOC) loads the electricity usage record for a period of time — hours, days, weeks, and months — from the electricity meter with the value stored, monitors the state of the electricity usage and the balance of the loan value on an hourly or daily basis, resets the time, loads the program and electricity use mode and controls the secret and abnormal use of electricity. In addition, the amount of money is calculated between the system 54 of counting the amount of money of the electricity seller 53 and the reseller 50 of electricity using a method similar to the above processes.

FIG. 7 depicts, in perspective view, an external form of an electricity meter with a value storage according to the present invention. An energy meter with a value storage according to the present invention includes an LCD display 17 on the top of the front surface and an input and output terminal 66 on the bottom of the front surface. The input and output terminal 66 is connected to an electrical grid for the input and output of electricity and is covered by a lid 64 to prevent covert use. The digital intercom 20 and keypad 21 for requesting the transfer of value are provided on the upper surface of the lid 64 to prevent covert use. In addition, the slot 60 for inserting the IC card, into which the IC card is inserted, is provided on one side of the electricity meter. The value of the loan is stored on the IC card and read from the IC card when it is inside slot 60 for inserting the IC card. In addition, the unit 62 for sealing and checking the secret use / dismantling for sealing the electricity meter in order to prevent the use of secret electricity, is part of the electricity meter.

As described above, the present invention has been described only in relation to an electricity meter with a storage value with which it is communicated via a power modem. Mutual necessary information can be exchanged by establishing a connection through the power grid modem between the server and the terminal. Instead of the power grid, you can use a regular telephone line, a radio frequency relay communication line, and a cable television line.

As mentioned above, according to the present invention, it is possible to reduce the costs associated with visiting personnel by eliminating the meter reading process for things such as electricity, gas, water and heat, the cost of processing calculations, printing and sending bills by mail and bill postage.

In addition, you can reduce losses due to uncollected bills for paying electricity and debts and provide an added value, since the value of the loan is paid in advance by a credit card or by a bank account. Accordingly, the electricity supplier may provide a high added value.

Industrial Applicability

The present invention describes a composite electricity meter, with which it is possible to solve economic problems and security problems associated with the need to visit and visually check known remote electricity meters.

Claims (15)

CLAIM 1. A method for changing credit information in a stored value module (MRZ) of an electricity meter connected to a power supply system containing a host computer, in which communication is maintained between the host computer and each terminal of the electricity meters through a modem using an electrical network and included in the electricity meter, and loan information is changed in the following steps: (a) the first random data is generated on the host computer, the first arbitrary data is sent to the terminal, the session key is generated using the key generation algorithm using the internal secret key of the terminal, the first signature value is generated using the signature generation algorithm for comparison during terminal authentication, the terminal receives the first arbitrary data and generates a session key in the same way as the host computer, (b) the second value of the signature is generated on the terminal using of the signature generation algorithm and the second arbitrary data and send the second arbitrary data to the host computer, (c) on the host computer, compare the first and second signature values and authenticate the terminal, after which the third signature value is generated on the host computer and the third signature value is sent to the terminal with information about the amount of money in the case when the terminal is authenticated, and the terminal receives the third value of the signature and information about the amount of money from the host computer and generates the fourth value of the signature and authenticates the host computer by comparing the third and fourth values of the signature with each other, and (b) increase the value in the MOH by decoding the information in the terminal by the amount of money, while sending the value obtained by encrypting the remainder and the terminal identification number using the encryption algorithm, to the host computer, and the host computer receives the encrypted value, decodes the encrypted value, compares the stored identification number of the terminal with the decoded identification number th terminal, authenticates the terminal once again, and creates a copy of reserve balance in a record file when the authentication is completed. 2. The method according to claim 1, further comprising the step of converting a power payment system, including the following sub-steps: (A1) on the host computer, the first arbitrary data is generated, the first arbitrary data is sent to the terminal, the session key is generated using the key generation algorithm using the internal secret key of the terminal, the first signature value is generated using the signature generation algorithm for comparison during terminal authentication, the terminal receives the first arbitrary data and generates a session key in the same way as the host computer, (b1) the second value of the signature is generated on the terminal using using the signature generation algorithm and the second arbitrary data and send the second arbitrary data to the host computer, (c1) on the host computer, compare the first and second signature values and authenticate the terminal, after which the third signature value is generated on the host computer and the third signature value is sent to the terminal with information about the operating mode when the terminal is authenticated, and the terminal receives the third value of the signature and information about the operating mode from the host computer and generates the fourth value of the signature, and (61) on the term They authenticate the host computer by comparing the third and fourth signature values with each other and convert the tariff system, generate an encrypted message by encrypting the operating mode information and the terminal identification number using the encryption algorithm, and send the encrypted message to the host computer, and the host computer receives the encrypted message, decodes it, compares the stored terminal identification number with the decoded terminal identification number, authentic itsiruet terminal again and backs up the balance in a record file when the authentication is completed. 3. The method according to claim 2, further comprising a step for verifying usage information, including the following sub-steps: (a2) the first random data is generated on the host computer, the first arbitrary data is poured into the terminal, the session key is generated using the key generation algorithm using the internal secret key of the terminal, the first signature value is generated using the signature generation algorithm for comparison during terminal authentication, In this, the terminal receives the first arbitrary data and generates a session key by the same method as the main computer, (b2) the second value of the signature is generated on the terminal with using the signature generation algorithm and the second arbitrary data and send the second arbitrary data to the host computer, (c2) compare the first and second values of the signature on the host computer and authenticate the terminal, after which the third signature value is generated on the host computer and the third signature value is sent to the terminal with information about the time when the terminal is authenticated, and the terminal receives the third signature value and time information from the host computer and generates the fourth signature value, and (62) the terminal authenticates they host the main computer by comparing the third and fourth values of the signature with each other, after which a message is received from the terminal, obtained by encrypting the usage details record file using the encryption algorithm, to the main computer, and the main computer receives the encrypted message, decodes it, compares the saved terminal identification number with a decoded terminal identification number, authenticates the terminal again and backs up usage information for it weeks or months and timer information in the records at the end of the authentication file. 4. An electric meter for implementing the method according to claim 1, comprising an input and output terminal for the electric network and an output terminal for measuring the amount of electric energy used, a working part for measuring the voltage and current of the electric network and calculating the electric energy used, a modem for performing data communications between the host and a terminal through the power grid, a stored value module (MSZ) for storing the value, and a secure access module (MBD) having a central processor (CPU) and an encryption key and an algorithm encryption to prevent fraudulent use of value information and unauthorized access, exclude cryptographic attacks and the need for the MDB authorization process when requesting a token from the MRZ, a two-position self-holding relay switch to turn off the power supply in accordance with the result of the MRZ remainder, and a marker exchange unit to reduce the marker, obtained from information on the value that is entered from the MRZ in accordance with the amount of electricity consumed per unit time, p At the same time, the MRZ is made with the ability to request a new marker in the marker accumulator in the case when the internal marker is exhausted. 5. An energy meter with storing the value according to claim 4, further comprising a part for recording and reading an integrated circuit (IC) card, which is configured to be used with other meters, such as water, gas and heat meters, by inserting a card with an IC into the electricity meter, receiving the value from the host computer operating in an offline mode, writing the received value to the inserted card from the IC and reading the received value from the card from the IC. 6. The counter according to claim 5, in which the part for recording and reading the card with the IC used with water, gas and heat meters works offline and records the added value for things, such as gas and water, in the card with the IC through an electricity modem, which is configured to store the value of electricity in the IC card by connecting a communication port, which consists of eight pins defined by the standard Ι8Θ 7816 (part 2), having Uss, C1k, ΌΙΟ, Keke! and SPb for synchronous and asynchronous communication with a card with IP. 7. The counter according to claim 4, further comprising an AC to DC converter for supplying the operating voltage necessary for the electricity meter, an electricity consumption sensor configured to detect normal energy use when the sensor output signal is 0, and register shunting pins are shunted, with the secret use of electricity in the case when the output signal of the sensor is 1, and the buzzer to generate an audible alarm and issue instructions n The user can save and transmit the value when the last marker is received by requesting a new marker from the MRZ after the remainder of the marker exchange block has been exhausted. 8. The counter according to claim 4, in which the working part contains a shunt resistance for measuring the magnitude of the alternating current, a voltage divider for connecting the two resistances in series and choosing from the voltage range specified by the ratios of the two resistances with the possibility of controlling the alternating voltage of the mains within the range of the input voltage of the voltmeter , an analog-to-digital converter for converting an AC signal that flows through a shunt resistance into a digital discharge signal 16 or 20 bits in length and an analog-to-digital converter for converting AC voltage to a digital signal with a bit capacity of 16 bits, which is configured to compare the voltage phase with the current phase, calculate the angle by which the two phases differ from each other, and output as a signal for application of differentiated tariffs. 9. The counter according to claim 4, additionally containing a table of electricity consumption, which is a table of the mode of payment for electricity for differentiated application of electricity use tariffs in several stages, such as 50, 75, 100, 150 and 200%, in accordance with the conditions of supply and demand for electricity based on a real-time period consisting of a year, month, hour, minute and second. 10. The counter according to claim 4, containing a non-volatile memory configured to store a characteristic 3 byte identification number, as well as record the state of use of electricity for a certain period of time - hours, days or months, and remote control of secret or abnormal use of electricity and performing the function of electronic printing. 11. The counter according to claim 4, containing an LCD display for visually displaying the remainder of the value, the state of transmission of the value, the status of electricity consumption in real time, and the states of total energy use. 12. The counter according to claim 5, characterized in that it is adapted to be used for simple and sound payment of duties through the 8ET electronic business transaction process using credit cards and credit cards for direct payment to EMU '96, shared with the recorder and card reader with IP, and also additionally contains means for connecting to a telephone, the Internet, RATM (EMU'96) or a digital intercom for audio communication with a person heading the main server p, or for transmitting an audio message with the ability to assist the user on such matters as a memory device, and a keypad for a user directly requesting the value to be saved. 13. The counter according to claim 4, in which the terminal for input and output of electric energy of the electric meter includes a cover and a physical seal to prevent physical branching and is configured to prevent secret and abnormal use of electric power. 14. The counter according to claim 4, additionally containing a surge arrester circuit designed to discharge lightning and voltage surges through the supplier's electrical network. 15. The counter of claim 14, further comprising a voltage divider, an analog-to-digital voltage converter, an analog-to-digital current converter, a self-holding relay and a shunt resistance, configured to, if at least two types of power sources were selectively used different voltages or at the same time used at least two types of voltage, a separate measurement and operation at the corresponding current values.