The Real-time Failure Analysis And Channel Modeling Of Wireless Sensor Network

Wireless Sensor Network(WSN), integrated with the technologies of sensor, embeddedcomputing, wireless communication and distributed computing, is one of the sensor networksnewly-emerged. Nowadays its development and application play a great role in promoting thelevel of human life. WSN has a wide application in military, environment monitoring andmedical treatment. Based on the characteristics of low cost, low consumption, compact size,high redundancy and multi-function, WSN is more convenient and more effective in targettracking application than traditional networked systems.Target tracking is an important application of wireless sensor network, ha ving been madea rapid progress in single-target tracking study at present. Aimed at multi-target trackingsystem, this article has studied real-time data monitoring and fault analysis problem. Thissystem consists of a network, that is composed by twelve fixed ultrasonic sensor node, amonitoring base station and data management software for host PC, and two independentmobile robots as tracking object. This paper constructed a networked node fault detectionplatform by real-time monitoring information from the network, and realized three functionsincluding node monitoring, base station monitoring and data management and analysis in hostPC. Thus, for the phenomenon of package lost, this paper analyzed the transmission data ofthe online operation system by using markov data model, and got a channel lost packagemodel based on markov chains.