Design And Developing Of Smartphone Indoor Positioning And Navigation Based On QR Code

With the rapid development of computer technology and communication technology,mobile intelligent terminal has been greatly popular,location-based services also penetrate into various fields,plays an important role in people's lives.The pace of urbanization and the speed of expansion of the gradual acceleration of shopping malls,supermarkets and other places where the area is also growing,people living in these places when you want to find a shop more and more difficult.Therefore,the indoor location and navigation came into being,as people increasingly need a part of travel.The most common positioning technology is GPS technology,but because GPS relies on satellite signal positioning,it is difficult to achieve the desired effect in the occluded room,which requires new technology to solve the problem of indoor location problem.This paper combines two-dimensional code technology to store floor information and location information of key points in two-dimensional code,the user simply scan the two-dimensional code can be quickly positioned.The specific content and innovation of this thesis are as follows:(1)The vector geography model in multi-layer indoor space is established.First of all,the analysis of all the geographical elements of the indoor environment,the abstract elements of the plane using a professional GIS software to draw.In order to complete the path planning and navigation between different layers in the room,the connection between the layers is established by elevator or stairs when the data are established.(2)Aiming at the limitation of traditional static identification system and the slow development of indoor navigation system in China,a QR-oriented method is proposed combining geocoding principle and two-dimensional code technology.,Design identity and layout and management issues.(3)Using of two-dimensional code technology and the combination of smart phone sensors to achieve indoor positioning and navigation.This paper analyzes the path planning algorithm and the principle of inertial positioning and navigation,collects the information of staircases and elevators between different floors,proposes the path planning between the same floor and different floors,and realizes the path between the starting position and the destination navigation.(4)Design the framework of the prototype system,and realize the prototype system development.First of all,the finished indoor map is published as a map service that can be viewed on the mobile side,and geocoding service is issued according to the name of the indoor shop.Then,the indoor positioning and navigation program is developed.According to the indoor positioning and navigation algorithm and the principle of inertial positioning,it realizes the accurate and effective positioning and navigation in the indoor multi-layer space.It is proved that the system can run normally and realize the goal of the initial system,which can meet the requirement of indoor navigation.In the future will continue to indoor positioning and navigation for more in-depth study to make up for the shortcomings of this paper.