Study And Application On Wireless Monitoring System

Wireless monitoring system has colligated the newest sensor technology, data acquisition, modern wireless communication, could real-time monitor all kinds of objects'data by various sensors. These data is sent to monitoring terminal by radio so as to monitor various objects. The wireless monitoring system, which will be the main developing direction, is more movable and flexible than traditional monitoring system.In this paper a founding method and implement of wireless monitoring system is described, including the particular practical scheme. The paper displays the design method of the hardware circuit and software program of the wireless monitoring system. The analysis on choosing the main accessory and design of circuit is given. Then, it also discusses the wireless communication technology and the problem of RF Design. Finally, through the test of system power dissipation, communication distance and anti-interference ability, the performance of system is tested. Meanwhile,the paper also introduces the design method of system interface and implementation method of function module in monitoring center.The whole system includes three parts: data acquisition module ,wireless transmitting module and monitoring center interface. The monitoring terminal is the system's core, the design of which includes hardware circuits and software programs. The hardware circuits are consisted of digital sensors, analog sensors, signal processing circuit, data memory, data display, clock circuit, power module, microcontroller etc. The software part controls channels, preprocesses signals, stores data, manages clock etc. Wireless transmitting module includes radio frequency chip selection, circuit design, antenna design, PCB design, RF receiving and sending program compiling and debugging. Some measures for RF circuit have been taken to avoid disturbances. Monitoring center interface is mainly used for monitoring data receiving, processing, display and saving. Users can quickly browse and find data through the user interface, accordingly gain master monitoring points information by computer analysis results.Based on the research and realization mentioned above, with excellent performance, convenient operation, complete functions, the system is a new and ideal multifunction wireless monitoring system. In addition, it also can offer a reference for the development and realization of the similar systems in the future.