基于CC2500的无线楼宇跟踪系统软硬件设计

为了能够对楼宇中的人员或物品采用无线的方式进行定位和监控,提出了一种类似RADAR的定位方法,该方法采用位置已知的固定信标对目标节点的接收信号强度(RSSI)进行查表定位。试验时采用射频芯片CC2500构成单个节点,组成一套楼宇内的无线定位跟踪系统。文中也对CC2500芯片本身的应用方法进行了详细介绍。试验结果表明,在定位所需时间2 s,定位精度1 m的情况下,CC2500能够很好地按照上述方法完成定位传输工作。

A In-building Tracking System Design Based on RF Transceiver CC2500

In order to locate and track man and goods in the buildings with wireless system,a location method,that looks like RADAR location system,has been proposed.The beacons whose position have been known to receive the signal from the goal nodes and read out the Receive Signal Strange Indicator(RSSI),then look for its position the data table.In the experiment,RF transceiver CC2500 is used to compose the monitoring nodes,several of which make up of in-building wireless tracking system.The test result indicate that,CC2500 can complete the localization and transmission work very well according to the above method,in condition that location time is 2 seconds and location accuracy is 1 meter.