The Design And Realization Of Exhibition Hall Monitoring System Data Platform Based On WSN

The application of sensor network is a hot new area in the information technology[10-13].This article points out the lack of current monitoring system based on sensor network design for large scenes monitoring. The paper, taking the WSN-based pavilion monitoring system as an example, proposes a self-designed hierarchical data platform that can be used in big scene monitoring systems. The data platform includes two parts:Sensor Network Communication Controller(SNCC) and Remote Sensor Access Unit. RSAU is responsible for access to various types of sensor communication nodes, Helping sensor communication node which connected to sensors and monitoring instruments, equipment, etc. access to the sensor communications network. SNCC as the core control devices of a sensor network communication domain, responsible for the function of the sensor network control and management and sensing business process for the region.First, the paper introduces the sensor network and the exhibition hall monitoring system. Then, it analyzes the necessary features of the data platform and propounds a design scheme, showing the design principles and the actual process and giving the operation result data platform. Last, it summarizes the research work and indicates further research direction and improvement schemes for the data platform.In the paper, we custom communication message format, using the openssl to do handshake and authentication between SNCC and RSAU. There are two means in communcition between RSAU and SNCC:safe mode and normal mode, which ensure the security of data transmitted over the Internet and efficiency within the LAN. communication to ensure the security of data transmitted over the Internetand efficiency within the LAN. In safe mode, using3-DES and RSA encrypted communication data to ensure the security of communications. And we design a con-figuration interface with thttpd server and cgic, you can easily configure the platform.The platform is designed in Linux with C language. And with excellent characteristics of system transplant and expansion, it can be extended to similar scenes of commercial applications.