The Research And Design Wireless Data Communication Terminal Based On GSM/GPRS

With the rapid development of the Chinese economy, a amount of sewage be drained when industry and agriculture production and people's daily life. On one hand, it pollutes water and Cause the water resources function descend. bring biggest disadvantageous influence on economic environment, which restrict remaining development of economics environment. On the other hand, for alleviating supply and demand antinomy and increasingly serious water environment worsen hard nut to crack in the world of water resources, the wastewater treatment returns to use of the utmost urgency already.The water environment quality of our country appears worsen continuously. One of The most important reason is the supervision means fall behind. Our nation attaches important to the environment protection,but many sewage disposed projects don't need people to keep watch the equipments and Also don't fit to build wire communication network. If adoption's way of the fiber optic or broadcasting station carry out wireless communication, which not only wastemoney but also unfit for movement requirement. in the remote monitoring of wastewater treatment usually has a following characteristics. 1 :the moment of deliver data is random,but as long as have a data to deliver must rightaway.2: time of transferring data has current requirement.3: quantity of transferring is not huge. As the technology of transition becomes popular in industrial automatic domain, which is especially fit for remont monitoring.The source of this theme comes from the application of wireless data in the field ofwastewater treatment equipments. This text discussed GPRS basic principle, PPP agreement principle and GPRS Data Terminal Unit according to the GPRS basic theories,and then discusse how to realized the remote monitoring module, so this paper mainly carries on following work: First mainly introduces the background of the reseach and the present technical condition, second carries on the introduction to the basic themories of GPRS in detailed. then carries on the introduction tothe basic themories of PPP agreement principle in detailed. and thenreseach how to realize GPRS Data Terminal Unit in hardware in detailed. last reseach how to realize GPRS Data Terminal Unit in software include the data center designed. Chapter 6 introduces the summary to the work which has been done and puts forward to seval kinds conception to the further perfect system.