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Authorization device of carrier wave prepayment electric energy meter

A technology of prepaid electric energy meter and authorization device, which is applied in the direction of instruments, coin-operated equipment for distributing discrete items, coin-free or similar appliances, etc. Electricity meter etc.

Active Publication Date: 2012-08-15
SHENZHEN TECHRISE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a carrier prepaid electric energy meter authorization device, which aims to solve the problem that the carrier prepaid electric energy meter authorization process is complicated because the prior art cannot provide an effective carrier prepaid electric energy meter authorization device

Method used

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  • Authorization device of carrier wave prepayment electric energy meter
  • Authorization device of carrier wave prepayment electric energy meter
  • Authorization device of carrier wave prepayment electric energy meter

Examples

Experimental program
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Effect test

Embodiment 1

[0020] figure 1 The structure of the authorization device for the carrier prepaid electric energy meter provided by the first embodiment of the present invention is shown. For the convenience of description, only the parts related to the embodiment of the present invention are shown.

[0021] In the embodiment of the present invention, authorization is the authentication of the legitimacy of the carrier prepaid electric energy meter, which is specifically realized through the authorization key. When the authorization key is written into the carrier prepaid electric energy meter, the electric energy meter has obtained the The authorization of the management system can realize the secure communication with the electricity sales management system.

[0022] In the embodiment of the present invention, the carrier prepaid energy meter authorization device includes a first MCU11, a first authorization information reading module 12, a second authorization information reading module 13...

Embodiment 2

[0034] figure 2 It shows the structure of the carrier prepaid electric energy meter authorization device provided by the second embodiment of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown, including:

[0035] In the embodiment of the present invention, the carrier prepaid energy meter authorization device includes a first MCU11, a first authorization information reading module 12, a second authorization information reading module 13, an authorization key generation module 14, a second MCU15, plus / Decryption module 16, authorization key writing module 17, third MCU18 and display output module 19, wherein:

[0036] The first authorization information reading module 12 communicates with an external computer through the RS232 interface to obtain the first authorization information under the control of the first MCU.

[0037] The second authorization information reading module 13 reads the s...

Embodiment 3

[0044] image 3It shows the structure of the carrier prepaid energy meter authorization device provided by the third embodiment of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown, including:

[0045] In the embodiment of the present invention, the carrier prepaid energy meter authorization device includes a first MCU11, a first authorization information reading module 12, a second authorization information reading module 13, an authorization key generation module 14, a second MCU15, plus / Decryption module 16, authorization key writing module 17, third MCU18, display output module 19, authorization feedback information writing module 20 and alarm output module 21, wherein:

[0046] The first authorization information reading module 12 communicates with an external computer through the RS232 interface to obtain the first authorization information under the control of the first MCU.

[0047] ...

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Abstract

The invention applies to the field of electric energy metering, and provides an authorization device of a carrier wave prepayment electric energy meter. The device comprises a first MCU (Microprogrammed Control Unit), a second MCU, a first authorization information reading module for communicating with an outer computer through an RS232 interface under the control of the first MCU to acquire first authorization information, a second authorization information reading module for reading second authorization information from an authorization information storage device under the control of the first MCU, an authorization key generation module for generating a authorization key according to the first authorization information and the second authorization information under the control of the first MCU, an encrypting / decrypting module for encrypting the authorization key generated by the key generation module under the control of the second MCU, and an authorization key writing-in module for writing the authorization key encrypted by the encrypting / decrypting module into a safety module of the carrier wave prepayment electric energy meter through a carrier wave under the control of the first MCU. The authorization device simplifies the authorization process of the carrier wave prepayment electric energy meter and ensures the authorization safety at the same time.

Description

technical field [0001] The invention belongs to the field of electric energy metering, in particular to a carrier prepaid electric energy meter authorization device. Background technique [0002] On the basis of the electronic energy meter, the carrier prepaid energy meter realizes the data carrier function, that is, the data is transmitted to the data collector through the power supply line, and the electricity sales management system extracts the data from the data collector, thereby realizing remote meter reading and remote operation functions, such as prepayment, remote power data sending and receiving, and other functions. The key to the electricity sales management system is to realize the security of communication data between the electricity sales management system and the carrier prepaid electric energy meter. [0003] At present, the method of data encryption is mainly used to ensure the security of communication data between the power sales management system and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07F15/06
Inventor 龚晓刚吕晓静
Owner SHENZHEN TECHRISE ELECTRONICS
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