[New patent introduction] A smart meter control module and method based on CCKS

Today, I will introduce a national invention authorized patent-a smart meter control module and method based on CCKS. The patent was applied for by Zhongcheng Wisdom Technology Co., Ltd., and the authorization was announced on December 22, 2017.

Content description

The invention relates to the technical field of power grid equipment, and belongs to a control method of a smart electric meter, in particular to a CCKS-based smart meter control module and method.

Background of the invention

The electric energy meter is a grid device used for electric energy measurement, which is indispensable in people's daily life. At present, the mainstream household electricity meters on the market are mainly divided into two types: post-paid and pre-paid. Among them, the prepaid electric energy meter, the user must go to the designated outlet in advance to pre-charge the power IC card, and then insert the card into the home appliance meter to read the electricity before it can provide electricity. Not only is it troublesome for users to recharge, but once they forget to recharge, the balance of the electricity bill in the meter will be insufficient, which will cause power supply interruption and cause great inconvenience to users.

Although postpaid meters do not have the above-mentioned problem of forgotten to pay and sudden power outages during use, postpaid meters in most areas still require manual meter reading, which is inefficient and error-prone, so they are far from adapting to the development of the times. Therefore, all parts of the world are now vigorously promoting the installation and use of smart meters.

The smart meter is the smart terminal of the smart grid. On the basis of traditional electricity meters, it adds two-way multiple rate metering functions, user-side control functions, two-way data communication functions with multiple data transmission modes, anti-theft functions and other intelligent functions to realize bank and network power supply. Users can purchase electricity through the business window of the power company, cooperative banks, third-party agencies and networks that sell electricity on behalf of, which greatly facilitates users.

At present, the mainstream electric meter plug-in communication module on the market uses power carrier, Zigbee, GSM and other communication means to connect to the power remote server, and is controlled by the remote server, and cannot directly interact with the user. There are still major deficiencies in security and convenience.

Summary of the invention

The purpose of the present invention is to provide a smart meter control module based on CCKS. The power meter control module and the user's smart terminal (such as smart phone, etc.) can exchange IDs with the power meter control module through Bluetooth and other communication technologies, and verify the legality of the identities of both parties through one interaction, and complete the smart terminal authentication. The power meter control module and the smart meter control module authenticate the two-way authentication of the smart terminal, and at the same time complete the process key exchange negotiation.

The purpose of the present invention is achieved through the following technical solutions: a CCKS-based smart meter control module, which controls the electric energy meter, is composed of a Bluetooth communication module, a security chip and an electric energy meter control module, and is composed of a Bluetooth communication module to establish an intelligent terminal and an electric energy meter control module The security chip is responsible for the two-way authentication and the CCKS algorithm calculation in the process of data encryption and decryption. The electric energy meter control module is responsible for communication and interaction with the electric meter through the standard electric meter control protocol; CCKS is used for the two-way authentication and encryption of the electric energy meter control module and the smart terminal Communication enables the energy meter control module to communicate with the user’s smart terminal through Bluetooth, exchange ID with the smart meter control module, and verify whether the identities of both parties are legal through at least one interaction, which completes the smart terminal authentication of the power meter control module and the power meter control The module authenticates the two-way authentication of the smart terminal and completes the process key exchange negotiation at the same time. The smart terminal will exchange the negotiated process key, use an asymmetric encryption algorithm to encrypt the instruction and send it to the energy meter control module for authentication. If passed, follow-up operations will be carried out, including the direct establishment of secure communication, and the functions of recharging and selling electricity, parameter updating, and information query will be provided; if either party's authentication fails, it will end abnormally.

The invention also provides that different sub-domain public and private keys can be simultaneously used to perform encryption/decryption and signature/verification respectively, thereby further improving security. The present invention also provides a more fine-grained permission control method, that is, different control commands are used for different sub-domain public and private key pairs. This further increases the flexibility and safety of the smart meter control module. The invention provides a realization method and principle for simultaneously improving the safety and convenience of the smart meter, thereby greatly reducing the power equipment and operating costs.

The beneficial effect of the present invention is that the electric energy meter control module can directly communicate with the user's intelligent terminal through general communication methods such as Bluetooth, which greatly enhances the flexibility of information interaction with different electric meters, reduces the need for remote communication with the electric power company, and makes Power equipment and operating costs are greatly reduced; two-way authentication and encrypted communication are carried out between the power meter control module and the user's smart terminal, and the communication steps are few, so that this smart meter control method has good security, and is fast and convenient.

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