KR20170134247A - Method of open wireless environment channel configuration in automatic meter reading system using an universal subscriber identify module and apparatus for the same - Google Patents

Abstract

The present invention relates to a method and an apparatus for configuring an open wireless environment channel in an automatic meter reading system using a universal subscriber identify module (USIM). A personal key and a public key used to form a transport layer security (TLS) channel in open wireless environment are stored in a USIM electrically connected to each of an energy provider/user terminal and a smart meter provided for a consumer. The public key is exchanged between the smart meter and the energy provider/user terminal in accordance with a request of the energy provider/user terminal connected to be communicated with the smart meter in the open wireless environment through a communication network. The public key exchanged between the smart meter and the energy provider/user terminal is coupled to the personal key stored in the USIM to process authentication, and then TLS channel formation in the open wireless environment is performed. Energy meter reading information including real-time meter reading data is encrypted in the smart meter on the basis of the request of the energy provider/user terminal performing the TLS channel formation in the open wireless environment, and is transmitted to the energy provider/user terminal. Accordingly, the USIM is installed in each of the smart meter installed in the customer and the terminal of an energy provider or user such as demand reaction and ESCO, and it is possible to perform channel configuration mutually without passing through a certification authority in the open wireless environment by using the USIM. Accordingly, it is possible to easily confirm various kinds of energy meter reading information used by the customer.

Description

[0001] The present invention relates to a method for configuring an open radio environment channel in a meter automatic meter reading system using a USIM,

The present invention relates to a system and method for enabling energy providers or users to communicate with a smart meter installed in a customer in an open wireless environment to easily check energy meter information such as electric power, water, hot water, The present invention relates to a method and apparatus for configuring an open radio environment channel in a meter automatic meter reading system using an identification module and a subscriber identification module.

In recent years, the concept of smart grid has emerged that connects all facilities and devices powered by electricity through various communication networks.

The Smart Grid is a next-generation power grid business that combines information technology (IT) with the power grid to optimize energy efficiency and create new added value through the exchange of information between power suppliers and consumers.

The Smart Grid, which integrates all systems based on electrical energy, centering on energy and communication infrastructure, controls the interaction of equipment and equipment through intelligent automation functions so that the entire system operates as an organic system.

Currently, the power system consists of a power system and a SCADA network, which is a communication infrastructure for controlling the power system. The current SCADA system monitors and controls the demand for large-scale facilities such as generators and large-scale customers. However, if the individual end-users are involved in the future smart grid system, they will actively participate in the power system unlike the existing SCADA system That is, it produces electricity itself or responds to market prices).

The existing power system uses a cumulative integrated meter (mechanical analog meter), which is a concept of multiplying the fixed electric power unit cost (KRW / kWh) with the accumulated electric power consumption for a certain period of time. The added smart meter concept emerged. The smart meter can measure real-time electricity usage and deliver real-time prices to consumers. The communication infrastructure that is installed for the communication of these smart meters is called AMI (Advanced Metering Infrastructure).

1 schematically shows a configuration of a general meter automatic meter reading system, which includes a network communication network 10, a meter 20, a power supplier server computer 30, and the like.

The network communication network 10 connects the communication lines between the meter 20 and the power supplier server computer 30 so that data communication with the real-time meter reading information is performed mutually.

The meter (20) performs real-time meter reading of the power consumption consumed in the electrical equipment in the customer.

The power supplier server computer 30 is a computer operated by a power supplier (for example, KEPCO), and includes a meter 20 connected to the communication network 10 via the network communication network 10, real-time meter reading information, Transmits and receives data, and performs billing processing based on the meter reading information.

However, in the conventional automatic meter reading system as described above, since the operator of the power supplier server computer 30 having the meter 20 on each customer side manages individual customer information and meter information individually, There is a problem that it is difficult to acquire the meter reading information used by the users of each customer, the demand reaction, and the electricity supplier related to the power trading, before providing the information and personal information or performing the separate contract with each customer.

Korean Registered Patent No. 10-1310156

The present invention relates to an electric power meter, an electric water heater, a water heater, and a water heater, which are connected to a smart meter installed in a customer, such as a demand response (Demand Response), an ESCO (Energy Service Company, To check the various energy meter reading information such as the accumulated heat quantity and gas easily, it is necessary to use the USIM which has excellent security in the open wireless environment such as ZigBee and Wi-SUN, which are 1: And an apparatus therefor are provided.

In the present invention, a USIM is installed in each smart meter installed in a customer and each terminal owned by an energy provider or a user. At this time, the USIM transmits an open wireless environment between a device and each provider based on previously distributed security key information, The USIM can remotely download the application (applet) for each provider through communication using OTA (Over The Air) technology by applying a security technology such as PSK (Pre Shared Key) And conducts business logic for each business company to perform various energy meter reading information accumulated and stored in a smart meter, electric power, water, hot water, accumulated calorie, and gas by using an applet mounted on USIM and USIM, A method for constructing an open wireless environment channel in an automatic energy meter reading system for activating an energy related business with ease The.

A method for configuring an open radio environment channel in a meter automatic meter reading system using a USIM according to an embodiment of the present invention includes the steps of (1) opening and closing a USIM, which is electrically connected to a smart meter and an energy provider / Storing a private key and a public key used to form a Transport Layer Security (TLS) channel in the environment; and (2) transmitting the request to an energy provider / user terminal communicatively connected with the smart meter in an open wireless environment via a network communication network (3) combining the public key exchanged between the smart meter and the energy provider / user terminal with the private key previously stored in the USIM, and Performing TLS channel formation in an open wireless environment by performing authentication based on the combined information, And (4) encrypting the energy meter information including the real-time meter reading data on the smart meter based on the request of the energy provider / user terminal that has performed the TLS channel formation in the open wireless environment and transmitting the energy meter information to the energy provider / user terminal .

In this case, when the TLS channel formation in the open wireless environment is performed through the step (3), it is preferable that the smart meter and the energy provider / user terminal form a TLS channel without going through the certification authority.

Also, an apparatus for configuring an open radio environment channel in a meter automatic meter reading system using a USIM according to an embodiment of the present invention may be configured to connect an unspecified number of communication lines to each other to form TLS channels in an open wireless environment, A network communication network in which data communication is performed and a USIM in which a private key and a public key for carrying out a channel configuration with an energy provider / user terminal in an open wireless environment are stored, And the public key exchange is performed through the communication connection with the energy provider / user terminal through the network communication network. Based on the public key exchange and the private key combination stored in the USIM, Authentication, and in the open wireless environment, A smart meter that transmits energy meter information including real time meter reading data according to a request of an energy provider / user terminal that forms a TLS channel, and a smart meter that performs channel configuration with a smart meter in an open wireless environment Key and public key are stored in the smart meter, and the smart meter is communicated with the smart meter through the network communication network to perform TLS channel formation without using the certification authority in the open wireless environment through public key exchange. And an energy provider / user terminal receiving energy meter information.

The smart meter described above includes a meter reading unit for real-time meter reading of energy usage used in various facilities provided in a customer, and a smart meter for accumulating and storing information read in real time from the meter reading unit, and storing software for driving the smart meter A USIM that is electrically connected to the smart meter and stores a private key and a public key for establishing a TLS channel with an energy provider / user terminal in an open wireless environment, and an energy provider / Based on a request of an energy provider / user terminal that has performed a public key exchange and a TLS channel formation for TLS channel formation by proceeding with a communication connection with a user terminal, encrypts and data transmission / reception of energy meter information including real- And the energy to be performed by the meter reading unit Real-time metering of the amount of usage, accumulation and storage in the storage unit, public key exchange for TLS channel formation according to the request of the energy provider / user terminal through the communication unit, It performs authentication processing based on key combination and TLS channel formation in open wireless environment and controls encryption and data transmission / reception of energy meter information including energy meter reading data to energy provider / user terminal that has formed TLS channel And a control unit.

In addition, the USIM described above is used for access control of IEC (International Electrotechnical Commission) 62056 DLMS (Device Language Message Specification) / COSEM (Companion Specification for Energy Metering) applied to a smart meter and AES ) -GCM (Galois / Counter Mode) -128 standard.

As described above, according to the method and apparatus for configuring an open wireless environment channel in the meter automatic meter reading system using the USIM of the present invention, it is possible to provide a smart meter installed in each customer, an energy provider such as demand response, ESCO, The USIM is installed and the channel configuration is performed between the two without the certification authority in the open wireless environment so that it is possible to easily check various energy meter information such as electric power, water, hot water, have.

1 is a view schematically showing a configuration of a general meter automatic meter reading system.
2 is a diagram schematically illustrating the configuration of an apparatus for configuring an open radio environment channel in a meter automatic meter reading system using a USIM according to an embodiment of the present invention.
3 is a detailed view of the configuration of the smart meter of FIG.
FIG. 4 is a flowchart illustrating in detail an operation procedure of an open radio environment channel configuration method in a meter automatic meter reading system using a USIM according to an embodiment of the present invention.

Hereinafter, a method and an apparatus for configuring an open radio environment channel in a meter automatic meter reading system using the USIM of the present invention will be described in detail with reference to the accompanying drawings. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Like parts are designated with like reference numerals throughout the specification.

2 is a diagram schematically illustrating the configuration of an apparatus for configuring an open radio environment channel in a meter automatic meter reading system using a USIM according to an embodiment of the present invention.

As shown, the apparatus of the present invention includes a network communication network 100, a smart meter 200, an energy provider / user terminal 300, an energy provider server computer 400, and the like.

The network communication network 100 connects a communication line between the smart meter 200 and the energy provider / user terminal 300 to allow mutual data communication related to TLS channel configuration and energy measurement in an open wireless environment.

The network communication network 100 connects communication lines between the smart meter 200 and the energy provider server computer 400 so that data communication related to energy metering and billing is performed between the smart meter 200 and the energy provider server computer 400.

The smart meter 200 is electrically connected to a USIM that stores a private key and a public key for performing channel configuration with the energy provider / user terminal 300 in an open wireless environment, and is consumed in various facilities provided inside the consumer Energy consumption is measured and stored in real time.

Then, the public key exchange is performed through the communication network 100 with the energy provider / user terminal 300 to perform the public key exchange, and authentication is performed based on the private key combination stored in the USIM and the exchanged public key, Performs TLS channel formation without using an authentication authority in a wireless environment, and transmits energy meter information including real-time meter reading data at the request of the energy provider / user terminal 300 forming the TLS channel.

The energy provider / user terminal 300 is provided with a system for exchanging energy use facilities on behalf of an energy user lacking in demand response, ESCO (technology and financing capability, and financing support and operation management And an energy saving specialist company that conducts electrical communication with a USIM in which a private key and a public key for carrying out a channel configuration with the smart meter 200 in an open wireless environment are stored, And performs communication connection with the smart meter 200 through the network communication network 100 to perform TLS channel formation without using the certification authority in an open wireless environment through exchange of public keys, And various energy meter reading information including meter reading information is received.

The energy provider server computer 400 is a computer operated by an energy supplier (for example, KEPCO in the case of electric power). The energy provider server computer 400 includes a smart meter 200 communicatively connected through a network communication network 100, various energy meter reading information, Performs data transmission and reception including personal information of the customer, and performs billing processing based on various energy meter information.

3 is a diagram showing the configuration of the smart meter 200 of FIG. 2 in more detail.

The smart meter 200 includes a meter reading unit 210, a storage unit 220, a USIM 230, a communication unit 240, a controller 250, and the like.

Based on the control of the control unit 250, the meter reading unit 210 checks in real time the amount of energy used in various facilities provided in the customer.

The storage unit 220 accumulates and stores information measured in real time by the meter reading unit 210 and stores software for driving the smart meter 200. [

The USIM 230 is electrically connected to the smart meter 200 and stores a private key and a public key for establishing a TLS channel with the energy provider / user terminal 300 in an open wireless environment.

The communication unit 240 communicates with the energy provider / user terminal 300 through the network communication network 100 and performs the public key exchange and the TLS channel formation for forming the TLS channel. Based on the request, the meter reading unit 210 performs encryption and data transmission / reception of the energy meter reading information including the data meterated in real time.

The control unit 250 collectively controls the accumulation and storage of the energy usage amount performed by the meter reading unit 210 and the accumulation and storage of the storage unit 220, , Authentication processing based on the private key combination stored in the USIM 230 and TLS channel formation in the open wireless environment is performed and TLS channel formation is performed. And controls the encryption and data transmission / reception of the energy meter information including the energy meter read data in real time to the energy provider / user terminal 300 performed.

At this time, the USIM 230 is preferably implemented according to the AES-GCM-128 standard for access control and data communication security of the IEC 62056 DLMS / COSEM of the International Electrotechnical Commission (IEC) applied to the smart meter 200 .

Hereinafter, an embodiment of a method for configuring an open radio environment channel in a meter automatic meter reading system using the USIM according to the present invention will be described in detail with reference to FIG. At this time, each step according to the method of the present invention may be changed in the use environment or the order by a person skilled in the art.

FIG. 4 is a flowchart illustrating in detail an operation procedure of an open radio environment channel configuration method in a meter automatic meter reading system using a USIM according to an embodiment of the present invention.

First, TLS channel formation in an open wireless environment is performed in each of the energy providers including the smart meter 200 provided in each customer and the demand reaction and the energy saving specialist (ESCO), and the energy provider / user terminal 300 owned by the user And a USIM in which a public key is stored are electrically connected (S100).

The smart meter 200 is connected to the energy provider / user terminal 300 in the open wireless environment through the network communication network 100 while the USIM is electrically connected to the smart meter 200 and the energy provider / user terminal 300, respectively. (Step S200). In step S200,

The smart meter 200 and the energy provider / user terminal 300 communicatively connected in the open wireless environment via the network communication network 100 can communicate with each other The public key previously stored in the USIM is exchanged (S300).

After exchanging the public key previously stored in the USIM through step S300, the smart meter 200 and the energy provider / user terminal 300 combine the public key exchanged with each other and the private key previously stored in the USIM And performs TLS channel formation in an open wireless environment by performing authentication based on the combined information (S400).

At this time, when the TLS channel formation in the open wireless environment is performed through step S400, the smart meter 200 and the energy provider / user terminal 300 form a TLS channel without going through the certification authority.

After the TLS channel formation in the open wireless environment is performed through step S400, the smart meter 200 encrypts the energy meter information including the real-time meter reading data based on the request of the energy provider / user terminal 300, To the terminal 300 (S500).

Lastly, the smart meter 200 performs data transmission / reception of energy meter information including the real-time meter reading data in step S500 until data usage of the energy provider / user terminal 300 that has performed TLS channel formation is terminated (S600 ).

As described above, the present invention installs the USIM in each of the terminals owned by the energy provider or the user such as the smart meter installed in the customer, the demand response, ESCO, etc., and constructs a channel between the users without using the certification authority in the open wireless environment using the USIM It is possible to easily check various energy meter reading information such as electric power, water, hot water, accumulated heat amount, and gas used in the customer.

In addition, since the present invention forms a TLS channel in an open wireless environment using a USIM, it is safe and easy on-chip security.

It will be apparent to those skilled in the art that various modifications may be made to the invention without departing from the spirit and scope of the invention as defined in the following claims And changes may be made without departing from the spirit and scope of the invention.

100: Network communication network
200: Smart meter
210:
220:
230: USIM
240:
250:
300: Energy provider / user terminal
400: Energy provider server computer

Claims (5)

(1) A private key and a public key used for forming a Transport Layer Security (TLS) channel in an open wireless environment are provided to a universal subscriber identity module (USIM) electrically connected to each of a smart meter and an energy provider / , ≪ / RTI >
(2) exchanging a public key between the smart meter and the energy provider / user terminal according to a request from the energy provider / user terminal communicatively connected with the smart meter in an open wireless environment via a network communication network,
(3) A public key exchanged between the smart meter and the energy provider / user terminal is combined with a private key previously stored in the USIM, and authentication is performed based on the combined information, thereby obtaining a TLS channel Performing the formation, and
(4) encrypting the energy meter information including the real-time meter reading data in the smart meter based on the request of the energy provider / user terminal that has performed the TLS channel formation in the open wireless environment and transmitting the energy meter information to the energy provider / user terminal
A method of configuring an open wireless environment channel in a meter automatic meter reading system using USIM. The method according to claim 1,
When performing the TLS channel formation in the open wireless environment through the step (3)
Wherein the smart meter and the energy provider / user terminal form a TLS channel without passing through a certification authority. A network communication network in which an unspecified number of communication lines are connected to each other and TLS (Transport Layer Security) channel configuration in an open wireless environment, data communication related to energy meter reading is performed,
(Universal Subscriber Identity Module) storing a private key and a public key for performing channel configuration with an energy provider / user terminal in an open wireless environment, And the energy usage amount including gas, water, hot water, total calorific value, and gas is measured and stored in real time, and the public key exchange is performed by conducting communication connection with the energy provider / user terminal through the network communication network, And the TLS channel is formed in the open wireless environment without using the certification authority. In response to the request of the energy provider / user terminal forming the TLS channel, energy including the real-time meter reading data A smart meter to transmit meter reading information, and
A smart meter, and a USIM, which are stored with a private key and a public key, for performing a channel configuration with the smart meter in an open wireless environment. The smart meter is connected to the smart meter through a communication network, An energy provider / user terminal that performs TLS channel formation in a wireless environment without using an authentication authority and receives energy meter information from the smart meter;
A device for configuring an open radio environment channel in a meter automatic meter reading system using USIM. The method of claim 3,
The smart meter includes:
A meter reading unit for real-time meter reading of energy usage used in various electric facilities provided in the customer,
A storage unit for accumulating and storing information read in real time by the meter reading unit and storing software for driving the smart meter,
A USIM that is electrically connected to the smart meter and stores a private key and a public key for establishing a TLS channel with the energy provider / user terminal in an open wireless environment,
And a control unit for controlling the energy provider / user terminal based on a request from the energy provider / user terminal for performing a communication connection with the energy provider / user terminal through the network communication network and forming a TLS channel for forming a TLS channel, A communication unit for performing encryption and data transmission / reception of energy meter information including data, and
The control unit collectively controls accumulation and storage of the energy usage amount performed by the meter reading unit and the accumulation and storage in the storage unit, and performs public key exchange for TLS channel formation according to a request of the energy provider / user terminal through the communication unit, The authentication processing based on the public key and the private key combination stored in the USIM and the TLS channel formation in the open wireless environment are performed, and the real-time meter reading data to the energy provider / user terminal performing the TLS channel formation And a control unit for controlling encryption and data transmission / reception of energy meter information
A device for configuring an open radio environment channel in a meter automatic meter reading system using USIM. 5. The method of claim 4,
The USIM comprises:
AES (Advanced Encryption Standard) -GCM (Galois / ALC) for access control and data communication security of IEC (International Electrotechnical Commission) 62056 DLMS (Device Language Message Specification) / COSEM (Companion Specification for Energy Metering) Counter Mode) - 128 Open Standards Radio Channel Configuration System for Automatic Meter Reading System using USIM.

Images