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Automatic kilowatt meter recording ssytem based on GPRS network

An automatic meter reading and network technology, applied in electrical signal transmission systems, signal transmission systems, instruments, etc., can solve problems such as difficult maintenance, high microwave communication costs, and unguaranteed communication efficiency, and solve the limitations of physical distance and network The effect of simple and reliable design and low communication cost

Inactive Publication Date: 2005-12-28
ZHEJIANG UNIV
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AI Technical Summary

Problems solved by technology

Power line carrier communication has a long application experience in the control system and automatic meter reading department, but the transmission of the power carrier system on the distribution line may encounter many difficulties, and it is very difficult to predict and control on the frequently changing distribution line; The transmission rate of the public telephone network is low, the communication efficiency cannot be guaranteed, the laying cost is high, and the maintenance is difficult; the reliability of the GSM short message communication method is not guaranteed by the network, especially when the network is busy. Messages are more likely to be lost; microwave communication costs are higher than other communication methods

Method used

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  • Automatic kilowatt meter recording ssytem based on GPRS network
  • Automatic kilowatt meter recording ssytem based on GPRS network
  • Automatic kilowatt meter recording ssytem based on GPRS network

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Embodiment Construction

[0018] Such as figure 2 As shown, a remote automatic meter reading system based on a GPRS network is composed of an electric energy meter 6, a terminal 7, a master station 10, and a communication circuit between the master station 10 and the terminal 7, wherein one master station 10 corresponds to multiple Terminal 7, one terminal 7 manages several electric energy meters 6, the communication circuit is composed of GPRS network 8 and Internet network 9, terminal 7 hangs multiple electric energy meters 6 through the RS485 serial port communication module, and accesses the GPRS network 8 through the GPRS communication module , the master station 10 is connected to the Internet network 9 and communicates with the GPRS network 8 through the Internet gateway. The master station 10 is also connected with a database server 11 .

[0019] The GPRS network 8 is only used as a network platform for data transmission and communication, providing pure GPRS network communication, and the an...

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Abstract

A remote automatic meter - copying system of power based on GPRS network comprises electric energy meter, terminal, main station and communication circuit. It is featured as using embedded processor as core of terminal being external - connected to FLASH, SDRAM, GRRS communication module, etc; using embedded Linux system as operation system of terminal connected to electric energy meters and GPRS network; forming communication system by GPRS and Internet networks; connecting main station to Internet network gateway for communication with GPRS network.

Description

technical field [0001] The invention relates to a wireless remote meter reading system, in particular to an electric remote automatic meter reading system based on GPRS network wireless communication. Background technique [0002] Electric remote automatic meter reading means that the main station of the electric power bureau can collect and store the data of the electric energy meters scattered in each user unit through a communication method. figure 1 The topological structure of a typical electric remote automatic meter reading system is shown, including terminal acquisition subsystem, communication circuit subsystem, master station processing subsystem, specifically including electric energy meter 1, terminal 2, communication circuit 3, master station 4 and database server 5. [0003] Among them, the terminal is a device that manages multiple distributed user unit electric energy meters. It is an important part of the terminal collection subsystem. The terminal receives...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08C19/00
Inventor 陈耀武
Owner ZHEJIANG UNIV
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