Design And Implementation Of Meteorogical Data Acquisition And Communication System

Meteorological monitoring technology is the important basis of meteorological informationization, it provides the safeguard for multiple industries's safe operation.It takes an important role in reducing disaster and transportation scheduling, agricultural production.In order to satisfy the demand of meteorological monitoring automation and cyberization, this article has unified the characteristic and superiority of ZigBee technology and GPRS technology,proposed a new kind of design proposal,designed and realized a wireless meteorological monitoring system based on ZigBee and Mobile technology.The system is composed by following parts:intelligent node for weather information acquisition,ZigBee wireless sensor networks,embedded data-gathering implement, GPRS radio communication.The weather data of each area is collected by intelligent node for weather information acquisition,then transferred to the embedded data-gathering implement to be dealt with by ZigBee WSN,and then transferred to remote Data administrative center by GPRS module. In the system,ZigBee WSN and GPRS radio communication make an easy and convenient construction of the system and flexible expansion.According to the wireless sensor network's elementary theory and the actual demand of meteorological monitoring system,this article has given the overall design plan of the system,detailedly analyzed and designed the hardware and software of the system.The node of the system included mobile platform,network coordinator and terminal sensor node.In view of the characteristics of the system technology,taking MT6225 processor with rich hardware resources and ARM7-based kernel as the core chip.We use J2ME as the development language.By using J2EE Struts theory,the modules such as net thread,view managment and data storage have been cut down and optinized,and a J2ME based MVC(Model-View-Controller)framework is proposed.Based on this software development platform,the system has mainly analyzed the multitasking application under the embedded operating system,given the key flow chart and partial source code.By using CC2530 and sensors as the intelligent node for weather information acquisition, it achieves a real time and accurate data transmission.The system has constituted measuring network with ecah terminal of meteorological monitor,realized the wireless network of ZigBee,mobile platform communicated with monitoring center by GPRS.This design can save the cost of the system.The system design manifests the advantages of high performance,low power consumption and low cost of the embedded design,and achieves a real time collection and wireless,automation,networking and intelligent handling of road weather information.