The Design And Development Of Wireless Remote Monitor And Control System Based On Web Service

Food security is a logistical support for a state’s stability and development, and the storage of food is the most important part of food security. In the process of grain storage, temperature and humidity are the main factors affecting food quality. Grain depots monitoring has been studing for many years in the field of grain reservation in China. During grain storage, we have to know the change of temperature and humidity in the grain depots in real time and take appropriate measures on time to prevent grains from being spoilage due to long-time storage in order to minimize the loss during the storage of grains. Under this background, granary monitoring system came into being. In recent years, with the development of remote wireless monitoring technology, the operation mode of granary monitoring system has gradually developed from the original traditional manual operation mode to modern remote wireless grain monitoring.This paper presents a design based on Web Service remote wireless granary monitoring system, which can regularly monitor the grain depot in real time, query and statistically analyze the historical monitored database, and automaticlly warn when something wrong happened in the grain depot. The system mainly consists of collector, daemonic server, comprehensive database, the service of Web Service and ASP.NET Web page. Collector is mainly responsible for collecting the values of temperature and humidity and the photographing of surveillance cameras in the grain depot;daemonic server is responsible for the communication with the collector, which includes issuing instruction on querying temperature and humidity, photographing and fan’s controlling, accepting the collected data, processing and analyzing the data immediately; comprehensive database is mainly responsible for the storage of the date of the whole systme; the service of Web Service is mainly responsible for offering service to external general-purpose interface, through which the sofware of other platforms can be easily accessed to this system, and it is very important for the extension of the system in the furture; ASP.NET Web page is maily responsible for quering database, showing pictures, which is not only limited to web pages, but also moblie client and other mobile terminals.By practically running and testing, the remote wireless granary monitoring system has well solved the problems during the storage of grains, greatly improves the working efficiency of granary managerial personnels, and the research results has been successfully applied to the computerized management of grain depot of Zonergy Company Limited in the city of HongHu in Hubei Province.