基于wifi的rfid室内消防定位方案研究.docx

基于WiFi的RFID室内消防定位方案研究
摘要鉴于WiFi的抗干扰能力比较差,在实际生产生活中,独立地使用WiFi技术进行室内定位已不足以满足人们对实时准确定位的需求,特别是在处理城市消防问题中显得尤为突出。本文提出了一种基于WiFi的RFID室内消防定位方案,该方案通过信息融合技术,同时利用WiFi和RFID实现更加精确地实时定位。本方案的实施,首先在不同时段利用终端对室内地理位置所接收AP结点的信号强度进行多次采集,并建立对应时段标准数据库;其次通过将实时采集的终端信息与数据库的标准值进行对比,推算出比较准确的定位方式;最后服务器通过定位算法对终端所反馈的实时数据进行处理,从而获取更为准确的位置信息。
关键词 WiFi;信息融合;RFID;火灾预警;实时定位
RFID Indoor Fire location Scheme based on WiFi
Yuchao Wang,Yiming Gu,Huizhen Jia,Kaiqiang Wang
Abstract In view of WiFi’s poor ability of anti-interference,in real life,just using the WiFi technology for indoor positioning can not satisfy people’s demand for real-time and accuration. Especially in the process of city fire control problem,that kind of situation is particularly this paper, a RFID indoor fire location scheme based on WiFi has been proposed. Through information fusion and using the technology of RFID and WiFi at the same time,the scheme could realize real-time positioning accurately. There are several steps to carry out the scheme. Firstly, using terminal to indoor location collects the signal strength of the AP nodes for many times, averaging and establishing the standard database; Secondly, paring the es from terminal with a standard database, select the more accurate positioning approach; At last, Server through localization algorithm processes real-time data terminal feedbacks, so as to obtain more accurate locat