基于RSSI参数纠正的无线传感器网络应急救灾系统

RSSI based Parameters Correction Emergency Disaster Response System of Wireless Sensor Networks

在突发事件的应急救灾系统中,对被困人员的定位是应急救灾首要考虑的问题.利用获得RSSI信息无需任何硬件设施、需要较少的通信开销和具有较低的实现复杂度特点,实现一种基于RSSI参数纠正的无线传感器网络应急救灾系统.针对RSSI获得信息的不稳定性,提出一种参数纠正方案,并给出应急救灾的系统架构.在VS2008平台下实现应急救灾系统,系统运行结果表明,基于RSSI参数纠正的方法可以精确获得被困人员的信息.本系统适用于应急救灾环境.

Trapped positioning is the primary consideration in emergency disaster response systems.Given the advantage that employing RSSI（Received signal strength indications）-based distance estimation needs no extra hardware,less communication cost as well as lower implementation complexity,we develop a RSSI-based parameters correction emergency disaster response system.We propose a RSSI-based parameter correction schema to tackle the problem of instability for RSSI information.We also give the system architecture of the emergency disaster response system.The system was implemented on VS2008 platform,the experimental results show that the system can obtain accurate information of the trapped persons.This system is very applicable to the emergent disaster environment.