Research On WSN Coverage Problems Of Intelligent Building

Wireless sensor network is consisted of computing technology, sensor technology, wireless communication technology, Network composed of a large number of wireless sensor nodes in the target area, it can collect, process and transmit the information of target area by wireless communication of multi-hop and self-organizing.Research on WSN network include energy efficiency, network security, network fault diagnosis, wireless location, network routing, and network coverage deployment. And this article researches on WSN coverage problem of intelligent building.The focus of article is to solve WSN coverage problem of target area, at the same time, network allows joining the new node in anytime and anywhere. Article concentrates three major issues:building wireless sensor node propagation model, building math modeling and building WSN coverage deployment Algorithm. At last, system sets up the building test environment based on ZigBee wireless technology.System adopt the ZigBee wireless technology, WSN network is made of three types of devices which contains network management station, sink nodes and end nodes. For hardware, based on MSP430F5438controller which is TI’s16-bit RISC mixed-signal processor and CC2430controller which integrate the high-performance2.4GHz DSSS (Direct Sequence Spread Spectrum) RF transceiver. Building WSN hardware environment is built with MSP430controller as the main-board and CC2430controller as the core-board. For software, it includes the design of MCU multi-task system and the application of Z-stack system.Intelligent building coverage algorithm of this article has a strong pertinence. The combination of MSP430and CC2430MCU has the advantages of low cost, low power consumption, large amount of memory space, stable and easily expand. It can be used as the wireless sensor network deployment guidance of industrial parks and residential communities, and has the practical significance and business value.