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Data transmission method for remote meter reading system

A technology of remote meter reading system and data transmission method, which is applied in the field of information security, and can solve the problems of damaging the fundamental interests of both the supply and demand parties and unfavorable development of the electric power industry.

Active Publication Date: 2009-02-04
NINGBO SANXING MEDICAL & ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existence of the above phenomena is extremely unfavorable to the development of the electric power industry, and will ultimately damage the fundamental interests of both the supply and demand sides

Method used

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  • Data transmission method for remote meter reading system
  • Data transmission method for remote meter reading system

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0011] x is a group of original data to be transmitted, and the sending end of the remote meter reading system first performs a hash operation on x to obtain a set of data, which is recorded as h(x), and the sending end will generate a random number at the same time, The random number is in one-to-one correspondence with the sequences pre-stored in the memory of the sending end and the receiving end of the remote meter reading system. Different random numbers correspond to different sequences. Then, the sending end uses the sequence as a key to use once A group of data is obtained after encrypting h(x) by a permanent encryption method, and the data is recorded as b, and the b and the random number are transmitted to the receiving end of the remote meter reading system through the information transmission channel, and the receiving end receives ...

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Abstract

The invention discloses a data transmission method of the remote meter reading system, comprising the following: a sender firstly conducts hash operation on x to yield h(x); at the same time, the sender generates a random number which one to one corresponds to sequences pre-stored inside memories of the sender and a receiver; then the sender takes the sequences as keys to encrypt the h(x) with a one time encrypting method to yield b; the b and the random number are transmitted to the receiver; the receiver determines the corresponding sequences according to the random number, and then the receiver takes the sequences as the keys to decrypt the b with the one time encrypting method to yield h(x); at the same time, the sender sorts the x according to the sequences to yield x` which is transmitted to the receiver, and the receiver sorts the x` to yield x``, and then conducts hash operation on x`` to yield h(x``); and the receiver compares the h(x) with the h(x``): if the h(x) is consistent with the h(x``), the x`` is the x, and otherwise, the receiver discards the received data and demands that the sender resend the x according to the above processes.

Description

technical field [0001] The invention relates to the field of information security, in particular to a data transmission method of a remote meter reading system. Background technique [0002] In the existing remote meter reading systems in China, GPRS, CDMA or HFC have been widely used in the remote meter reading systems as the information transmission channels of the remote meter reading systems. Because information transmission channels such as GPRS, CDMA or HFC belong to open shared transmission media, any user can easily access the information transmission channel using corresponding equipment, and the corresponding equipment can be easily purchased from the market. purchased. Because the data transmitted by the existing remote meter reading system through the information transmission channel is data in a standard format and is not encrypted, so when the user accesses the information transmission channel, he can call the corresponding The device reads and tampers with t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L9/18G08C17/02
Inventor 周忠祥蒙根邵柳东
Owner NINGBO SANXING MEDICAL & ELECTRIC CO LTD
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