便携式WiFi探针的人员溯源追踪器设计  

Design of Portable WiFi Probe Personnel Traceability Tracker

作　　者：罗回彬[1,2] 周肖树 黄嘉爔[1] Luo Huibin;Zhou Xiaoshu;Huang Jiaxi(Beijing Institute of Technology,Zhuhai 519000,China;Faculty of Information Technology,Macao University of Science and Technology)

机构地区：[1]北京理工大学珠海学院,珠海519000 [2]澳门科技大学资讯科技学院

出　　处：《单片机与嵌入式系统应用》2022年第8期37-41,共5页Microcontrollers & Embedded Systems

基　　金：2018年度广东省普通高校青年创新人才类项目(No.2018KQNCX339)。

摘　　要：针对在人群密集区域人员管控追踪搜查问题,设计一款基于WiFi探针的便携式追踪器。首先,选用两块ESP8266芯片进行硬件电路设计。其次,通过对ESP8266芯片软件编码,可以捕获手机发出的802.11探针包,且可以进行WiFi联网传输。再次,通过解析探针包可获得手机的MAC地址以及信号强度。最后,将采集的探针数据RSSI转换为距离,即可实时获得目标用户的方圆位置,追踪器可以判断一定范围内是否存在目标人物。此外,追踪器搭配蓝牙、WiFi、GPRS等通信模块可以将探测到的数据发送至用户手机或者远程服务器。WiFi探针追踪器硬件成本低且使用简单,可以较好地应用于人员追踪溯源领域。Aiming at the problem of tracking and searching people in crowded areas,a portable tracker based on WiFi probe is designed.Firstly,two ESP8266 chips are selected for hardware circuit design.Secondly,the author can capture the 802.11 probe packet sent by the mobile phone by coding the ESP8266 chip software,and can perform WiFi network transmission.Thirdly,the author can obtain the MAC address and signal strength of the mobile phone after analyzing the probe packet.Finally,the author converts the collected probe data RSSI into distance,so that the location of the target user can be obtained in real time,and the tracker can determine whether there is a target person within a certain range.In addition,the tracker is equipped with communication modules such as Bluetooth,WiFi,GPRS,etc.,which can send the detected data to the user's mobile phone or a remote server.The WiFi probe tracker has low hardware cost and is easy to use,and can be better applied to the application field of personnel tracking and traceability.

关 键 词：WiFi探针追踪器 ESP8266 MAC地址 RSSI 

分 类 号：TP399[自动化与计算机技术—计算机应用技术]