摘要
ZigBee是一种基于IEEE 802.15.4标准的低功耗局域网协议,具有高性能、低成本、低功耗等特点,并可以实现带有路由的组网功能。定位系统以CC2431单片机为核心,使用RSSI定位算法实现了定位功能。介绍了一种ZigBee无线定位系统,并阐述了系统的硬件组成、软件实现和定位方法。最后根据实际应用的需要对系统进行了改进,添加了老年人求助和警告功能。
ZigBee is a low-power local area network protocol based on IEEE 802.15.4 standard and featured high-performance, low-cost and low power-consumption, and could implement the networking with routing functions. The location system takes CC2431 as the core and realizes the location function with RSSI algorithm. The paper gives the design of location system based on ZigBee and expounds the hardware components of system, software implementation and location method Finally based on the practical applications, the elderly people help-warning function is added to this system.
出处
《通信技术》
2012年第10期78-81,共4页
Communications Technology
关键词
定位
求助
ZIGBEE技术
接收信号强度指示
location
seeking help
ZigBee technology
received signal strength indicator
