Design On The Environment Temperature Detecting For Distributed Sensor System Based On ZigBee Transceiver CC2430

A Wireless Sensor Network(WSN) is a network consisting of spatially distributed self-organizing devices.These devices use their sensors to monitor devices.Their sensors to monitor environmental conditions,such as temperature,sound,pressure vibration,and so on.Decision is made after data acquisition and information processing.WSN were originally motivated by military applications,such as battlefield surveillance.In addition areas,including environment monitoring,home automation,and traffic control.WSNs become one of the hottest research directions of computer science now days.WSNs consist of large number of sensor nodes which have the capability of computing,sensing and communicating.Most sensor nodes are low-cost and resources-constrained compared to other embedded systems,so it can be deployed in a large scale.Energy efficiency is one of the most challenging issues since most of the sensor nodes are battery powered.The software in a deployed WSNs often needs to be changed,eg.Updating the system with new functionality,or fixing software bugs.Hence, reprogramming of WSNs is a designed feature.Usually a large number of sensor nodes are spread over a large field which is usually unreachable.Updating software manually is impossible.So network managers need remote reprogramming ability in order to add new functionality or fix software bugs.In view of the technical characteristics of wireless sensor networks,a new technical standard in 2002 was proposed and has obtained the widespread support after updating and improving.It is the ZigBee technology.ZigBee technology as one kind of emerging wireless network technology with near distance,low complexity,the low powerless,the low date rate,the low cast,is mainly used in the near distant wireless connection.It has its own agreement standard to communicate between several thousand small sensors intercoordination realization communications.These sensors only need very few energies, pass the date by the relay way through the radio wave from a sensor to anther,therefore they communicate with an extreme by high efficiency wireless connection.This article briefly introduced the development of ZigBee technology and the specification of it,also the characteristics of the CC2430 chip on which the ZigBee technology can be implemented.Beside,it give a sample application example on how to realize a distributed temperature measure task,including power consumption management,configuration of the wireless network,using the on-chip temperature sensor to detect the environment temperature,the way the temperature data is send from child-device,and the receiving of temperature data on the coordinate side,and the way the data is up-loaded to a PC,on which the data is further display.