Architecture Of Information Processing For Wireless Sensor Networks

The Wireless Sensor Networks (WSN) is a new generation of network communicationtechnology that rises by the development of sensor technology, wireless communicationtechnology, information processing technology. It integrates advanced technology in variousfields such as computer technology, network communication technology, embeddedtechnology, network security technology, microprocessor technology and so on. The wirelesssensor networks technology has characteristics as low-cost, low-power, distributed, Ad hoc,big data compared with traditional communication technology. The development of thistechnology will bring huge changes for human lifestyle and has broad application prospects.In the process of learning and research of wireless sensor networks, when the sensornetwork is running, there are redundant information communication between the sensor nodesand sensor nodes and between the sensor nodes and routing nodes. In addition, when thesensor node calculates an average of the sensing values in a period of time or need to make anappropriate response after the analysis of sensor data, the response time is often not idealbecause of the low power consumption of the sensor node and the low calculate capacity. Thereasons that causing those phenomena are the diverse types of the network nodes, theretransmission of the network communication, the re-established of the network topology, andso on; then, when it need to make some certain setting to a sensor node, manually finding thelocation of the node is needed in most cases, and in the experiment of the wireless sensornetworks, the arrangement of the sensor nodes is generally random and it is very difficult tofind the certain physical address of the sensor node, so an architecture of informationprocessing for the wireless sensor networks data is designed, and it can collect, store, analysesthe data information, storage the node information and parameters, send command, locationthe sensor node, and so on for different types applications of the WSN. And it also providehuman-computer interaction interface for the real-time state interactive function with theWSN.The design uses the modular design form, the whole architecture is divided into thewireless sensor networks part, the base station part, the server part, the client part.The wireless sensor networks part using the existing and mature communication protocol,using the Ad hoc technology to complete the work such as network construction,communications, information management for the sensor network, the various types ofinformation submitted to the upper for processing;The upper system information processing is make up by the base station and the server,the base station is responsible for the data communication with the WSN through wired connection as a connection node for the WSN and the upper network, the base stationneeds to convert protocol for a variety of sensor data, network data, the command databetween the protocol of the WSN and the upper internet protocol;The server is responsible for data storage, analysis computing, and the human-computerinteraction services. Using MySQL database to complete the physical layer design forthe server, using Tomcat and Java Servlet technology to achieve the B/S structure forreal-time display and real-time control the network state;The client part achieves human-computer interaction by the B/S structure that the serverprovides.The implementation results show that this architecture can complete informationprocessing applications for wireless sensor networks.