The Design And Implementation Of The System For Collecting And Processing Weather Information Of The Wireless Sensor Network

Weather data is very important in people's daily life,military and many other industries.And it is an important research direction to study how to acquire these meteorological data intelligently through existing technical means.In this thesis,ZigBee and GPRS are used as communication methods,because the wireless sensor network nodes are fully deployed and flexible,and the GPRS wireless transmission technology is able to extend the data transmission distance of the wireless sensor network.The node for weather information acquisition of wireless sensor network and PC software for collecting and processing weather information are designed and realized,and the system for collecting and processing weather information of the wireless sensor network is developed in the end.The specific work of this paper are as follows:(1)The node for weather information acquisition is designed and implemented.The C8051F410 microcontroller is selected as the control core for the node and the hardware of the node is designed.The node consists of power module,ZigBee terminal module,storage module and other modules and the thermal wind sensor module in our laboratory is used to collect wind speed and wind direction data.The software is designed using the modular idea.The method of reducing the power consumption of the ZigBee terminal equipment is designed.The nodes can collect,store and upload wind speed,wind direction and other meteorological information,and can also execute the commnd from the host computer software.(2)The upper computer software is designed and implemented.The C# language is selected as a programming language.After analyzing the requirement of software,the overall design,partition module and programming are carried out.The upper computer can realize the functions of uploading and storing meteorological data,managing nodes and analyzing meteorological data.The upper computer and the ZigBee gateway need to communicate.For this purpose,two communication modes of serial port and GPRS are designed.And a self-control communication mode is used to send commands and receive data to improve the communication quality.(3)At the end of this paper,the whole system is tested.The nodes can form ZigBee network and sleep to reduce power consumption.It can also collect,store and upload meteorological data.The upper computer can manage nodes,acquire and store meteorological data,and analyze meteorological data.The success rate of the whole system data acquisition is able to be over 90%.The whole system meets the design requirements basically.The system for collecting and processing weather information of the wireless sensor network developed by this subject has passed the test of function and performance.The result shows that the system meets the design index and requirements basically,with stability,high real-time performance,low power consumption,long communication distance and high flexibility.It is suitable for monitoring the weather,and of reference value for similar meteorological information collection and processing system.