基于ZigBee的嵌入式环境监控系统路由机制的研究

【作者】 胡森来；

【导师】 杭国强；

【作者基本信息】 浙江大学 ， 电路与系统， 2008， 硕士

【摘要】 近年来,环境对我们生活、设备的影响越来越受到关注,在很多企业及政府部门的机房、仓库、文档储存的库房中,需要对其环境的温湿度及各种状态进行采集、监控,来确保物品存放的安全。因此,研究和开发一套稳定、先进、有效且性能价格比较高的环境监控系统极其必要。同时,网络技术、嵌入式技术的高速发展给研制开发环境监控系统带来的极大的便利,但是目前的系统一般是以有线的方式传输的,有一些弊端,如布线麻烦等。因此我们采用了ZigBee技术来实现以无线方式进行数据的采集收发。ZigBee技术特别适合于数据吞吐量小、网络建设投资少、网络安全要求较高、不便频繁更换电池或充电的场合。本文采用了TI的CC2430 ZigBee芯片,结合实际中环境监控的要求,给出了一个嵌入式环境监控系统的解决方案。针对在以无线通信方式来进行数据传输时,路由算法非常重要,因此在实现整体解决方案,包括主站服务器软件设计,以及硬件模块设计的基础上,本文主要研究了ZigBee无线组网路由算法,提出了一种改进型的加权树状路由算法(IWRT),实现数据的可靠传输,以及尽可能延长整体网络的生存时间。经过仿真和在实际使用当中的应用测试,结果显示系统性能良好。更多还原

【Abstract】 Nowadays, the environment is more and more important to our life and production equipment. In many government or corporation storerooms or workshops, it is necessary to monitor the temperature and the humidity of the environment so as to protect the equipments. So it is significative to research and develop the Monitoring System of Environment.Also, the fast development of the technology of network and embedded system is good message for the Monitoring System of Environment. But most of current systems communicate with Ethernet or other wire. They all have different limitation, such as wiring is a big problem. So we use the wireless ZigBee technology to achieve the transmission of data acquisition.ZigBee technology is particularly suited to small data throughput and network construction investment, the higher requirements of the network security, inconvenience frequent battery replacement or recharging occasions. Connection with real requirements of Environment Monitoring System, this paper achieves the embedded data acquisition system using TI’s CC2430.The key problem to work out the data acquisition system is how to establish the communication link between the wireless nodes make sure the system can get the data in nodes and run without failure, so we research the routing protocol of ZigBee network. The result shows that the data can be got successfully and the lifetime of the whole networks is prolonged.更多还原