Design Of Communication System Of Meso-scale Auto Weather Station

With the development of economy and the improvement of people's life, people pay more and more attention to the meteorological information in a timely and accuracy.Automatic station observation system is the main source of meteorological information.but also the foundation of the weather service.The small scale of the automatic meteorological station nets in construction focuses on strengthening the original observation network of time-space density.To ensure the automatic weather stations acquisition's real-time and accuracy, it is very important to choose appropriate data transmission path.At present commonly used for cable and wireless in two ways. Although cable transmission technology is more mature with the development of these years,but it still has obvious shortcoming, such as high cost,the difficulties in maintenance and restrictions by environmental which is more and more difficult to meet the network setting demand of the small scale automatic weather stations nets.Wireless communication technology in recent years to develop rapidly, particularly relying on in the mobile telecommunication network GPRS communication technology development gradually mature, it give us a new option.This project focus on the theoretics of wireless transmission scheme in the AWS network and implement of engineering,design the AWS's GPRS transmission system.Through analysis of the GPRS network schemes,according to the demand, choose the best schemes which is adopted to this project.This system is designed by using single chip computer single chip computer as the processor, BENQ M23 module to GPRS module. It is designed the data transmission terminal which is the AWS's the hardware and software, and realize the confection of AWS and the central station in the experimental environment,Solve the problem of the network connection, receiving and dispatching data.This project meets the requirement of design thought simple experiment.