摘要
基于蓝牙iBeacon设计C/S架构的商场室内手机定位及导航系统。手机接收蓝牙信号并上传至服务器,后台从蓝牙信号强度根据iBeacon距离-RSSI损耗模型计算出手机至iBeacon的距离,再采用三边质心法确定手机位置坐标,并标示在手机端商场地图上;另外,按照手机端输入的目的地信息,服务器运行引入回退机制的A*算法,规划出最优可行路径,实现手机端的商场导航。实验数据表明最大定位误差在3米以内,导航路径精准。
An indoor location and navigation system for mobile phones is designed with the C/S architecture by using iBeacon. A mobile phone receives the Bluetooth signal and uploads it to the server, the server calculates the distance from the mobile phone to the iBeacon according to the strength blue teeth signal and the iBeacon distance-RSSI loss model, and then uses the trilateral centroid method to determine the position coordinates of the mobile phone marked on the mobile terminal map. In addition, according to the destination information inputted by the mobile phone, the server runs the A * algorithm that adds a fallback mechanism to plan an optimal path, so as to realize the shopping navigation for the mobile phone. Experimental data show that the maximum positioning error is within 3 meters, the navigation path is accurate.
作者
前晋
陈淑荣
QIAN Jin;CHEN Shurong(School of information Engineering,Shanghai Maritime Univeristy,Shanghai 201306)
出处
《微型电脑应用》
2019年第1期76-79,共4页
Microcomputer Applications
