Design Of Remote Automatic Wireless Electricity Metering System Based On GPRS

High-speed development of our country' project of modernization drives the number of enterprise to fast increment, so demand of power especially electricity becomes more and more important. At the same time, it increases workload and working strength of electricity metering of electric power department. In order to conquer shortcomings of traditional manual meter reading mode, a lot of countries are researching remote automatic meter reading system and obtain great success. Automatic meter reading is a new technology which applies data acquisition, transmission and processing to water, power, and gas' supply and management. Research of automatic meter reading technology in our country is rather late, but development is very fast. With management revolution in the water, power, gas management and ceaselessly advancing industry automation, the automatic meter reading research is becoming a trend.Electronic technology, nanometer level IC manufacture technology, wireless network technology and embedded operating system develop fast and widely applied to meters, automobile electronic, consumption electronic, net equipment, mobile compete storage fields. With those new technologies development, a new type of wireless network (General Packet Radio Service) appears. As a new communication mode, GPRS network has real-time on-line, fast transmission, quick log on, paid according to flux of net data, supported IP protocol and X.25 protocol merits. Automatic meter reading will become more fast and high efficiency.In this background, we advanced and designed a remote automatic metering system, which base on GPRS net technology. The system introduces TI' s MSP430F149 and SIMCOM' s GPRS module-SIM300C as hardware platform. By RS485 serial communication port, it collects parameters of multi-function energy meter, and transmits them to the remote management computer by the GPRS network, and preserves these parameters in the database.This paper introduces status in quo of development at home and abroad, and analyzes some automatic meter reading system' s principle and constitution, and introduces advantages and disadvantages of different data transmission mode,principle and structure of GPRS at first; and then introduces hardware scheme and designed circuit of remote automatic meter reading system, which based on GPRS network technology in detail; at last introduces software realization of metering terminal and design of server management software.