Data transmission method for communication of intelligent electric meters

Abstract

The invention relates to a data transmission method for communication of intelligent electric meters, and aims to guarantee the safety of data transmission during communication of the meters. According to the technical scheme, the data transmission method comprises the following steps that: (a) a client-side encrypts a command to be sent and then transmits the command to a meter; (b) the meter judges whether a frame number is the same as a frame number stored in the meter, and a (c) step is carried out if the frame number is the same as the frame number stored in the meter; (c) a media access control (MAC) value is tested and verified, and a (d) step is carried out if the MAC value is correct; (d) the meter decrypts the command to obtain a plaintext command, the plaintext command is carried out, and 1 is added to the frame number stored in the meter; (e) the client-side judges whether the frame number is equal to the frame number when the command is transmitted after the client-side receives ciphertext replied data of the meter, and a (f) step is carried out if the frame number is equal to the frame number when the command is transmitted; (f) the MAC value is tested and verified, and a (g) step is carried out if the MAC value is correct; (g) the client-side decrypts the replied data to obtain plaintext replied data, and the plaintext replied data are stored; and (h) the client-side adds 1 to the frame number and the (a) step is carried out again. The initialization vector of an encryption algorithm comprises the identity information and the frame number of a sender. The data transmission method is applicable to communication of the intelligent electric meters.

Description

technical field [0001] The invention relates to a data transmission method for intelligent electric meter communication, which is mainly applicable to the communication of intelligent electric energy meters. Background technique [0002] With the introduction of the smart meter concept, the security of information transmission has become a key factor in the communication of smart meters around the world. The State Grid Corporation of China and China Southern Power Grid Corporation are also considering the security of information transmission as a smart meter when formulating smart meter standards. One of the meter requirements. However, at present, most of the communications of domestic electric energy meters do not consider the security of data transmission. The data is easily eavesdropped and tampered with during transmission. Hackers can use the eavesdropped data to perform certain operations of great interest, such as switching on and off, and even energy consumers can d...

AI Technical Summary

Problems solved by technology

However, at present, most of the communications of domestic electric energy meters do not consider the security of data transmission. The data is easily eavesdropped and tampered with during transmission. Hackers can use the eavesdropped data to perform certain operations of great interest, such as switching on and off, and even energy consumers can deny it. the data it consumes

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