Indoor Personnel Positioning System Based On Probe Technology

In the process of urbanization,in order to meet people’s basic living needs and spiritual civilization construction needs,various cities have built large indoor leisure and entertainment places such as museums,shopping malls and aquariums with their own characteristics,attracting a large number of tourists.Taking museums as an example,it is very important for museum managers to ensure the safety and service of tourists.Therefore,managers need to know the distribution of tourists so as to arrange appropriate facilities and services according to the density of tourists in each region.In addition,statistical information such as the number of visitors,average visit time,the number and proportion of new and old customers in each exhibition hall should be counted,so as to provide data support for scientific decision-making.At present,indoor positioning system is mainly based on infrared sensor technology,video monitoring and other technologies.At present,infrared sensor positioning technology has been quite perfect,and indoor positioning accuracy is also high,but because of its line-of-sight transmission,poor penetration,the statistical effect is poor when many people appear together,prone to data omission.Video surveillance technology relies on image recognition,accurate counting,and remote viewing of passenger flow.However,the implementation cost is high,operation and maintenance cost is high,and new and old customers cannot be distinguished.In view of the above background,this paper designs and implements an indoor personnel positioning system based on probe technology in combination with specific business scenarios.In terms of hardware,WiFi probe equipment is selected as a tool to detect the location of tourists.WiFi probe equipment has the characteristics of low cost,simple layout and zero perception of tourists.Firstly,WiFi probe equipment should be laid at the passenger flow monitoring point.After the laying,the WiFi probe equipment will automatically call the data uploading interface of the data receiving system to upload the location information of tourists.In terms of software,the system adopts B/S(browser/server)structure,which is composed of two parts:data receiving subsystem and background management subsystem.The data receiving system performs data verification,data analysis and data preprocessing on the received probe data,and stores the processed location data in the database.Background management system through the execution of scheduled tasks to tourists location point data for logical calculation,the passenger flow statistics of each monitoring point,combined with the data visualization technology of passenger flow statistics for visual display.The system adopts the currently popular development mode of front and back end separation.The back end uses Java language for development,and uses SpringBoot to integrate MyBatis framework to complete the construction of the system architecture.The relational database MySQL is used for persistent storage of data.At the same time in order to improve the response speed of the system using Redis cache support.In the face of massive probe data upload,Nginx server is used for load balancing,so as to improve the working efficiency of the system and reduce the system pressure.The front end adopts VUE framework for development,and the interactive chart of Echarts plug-in is used for visualization display of passenger flow data.The system has been tested in a museum in Shandong Province,and the test results show that the accuracy of the system’s visitor flow statistics can reach about 85%,and the location data acquisition and visitor flow statistics and analysis of the museum are well completed.