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Application and comparison of GSM & GPRS in wireless meter reading system

Ling Chen

Abstract

Using SMS of GSM and GPRS reasonably in remote wireless meter reading system,it not only can effectively monitor the water consumption real-time,but also has advantages of low cost and high reliability.According to the wireless meter reading system,this paper described the SMS of GSM and GPRS method in data transmission system,compared this two methods in the technical complexity,implementation,cost and delay,and got the results that the GSM suits for the occasions which have low communications frequency and small amounts of data and are not sensitive to latency.By the contrary,the GPRS is suit for occasions which has high frequency communications,large volume of data,and high real-time capability.Combining with the characteristics of remote wireless meter reading system,a data transfer project was designed which used GPRS mode in most of the time and used SMS mode when the network is heavy.It realized automatic switch between SMS and GPRS mode under the software control.The results show that the cost of this project is lower than using a single one and the reliability of data is almost 100%.

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Key concepts: General Packet Radio Service, GSM, GPRS core network, Wireless, Automatic meter reading, Data transmission, Computer science, Reliability (semiconductor)