The Mobile Robot Navigation System Design Based On GPS and GIS

The paper develops an autonomous navigation system with Visual C++ 6.0, combining all-terrain and all-weather mobile robot platform with the high-precision dual-frequency RTK-GPS. The intelligent mobile robot achieves autonomous navigation control. Owing to the four-wheel drive, path tracking is better implemented; Owing to the use of high-precision GPS, position locating is more accurate; Owing to the multithreaded design of the program, real-time requirements of the navigation is better achieved; By the way of map matching of GIS, the path tracking is real-time and the navigation of the robot is more visual and intuitive. The result of experiment shows that this navigation system can meet the requirements of accuracy and real-time and complete the navigation task very well. Generally speaking, the research on navigation system includes there aspects. (1) How to determine the location of the object which should be navigated. (2) How to determine its direction from one place to another. (3) How to determine the distance (speed, or time) [1].And thus how to determine the location is key factor to solve the problem of navigation. The core of the navigation system designed in this paper is GPS, because of the requirements of high-precision, global-area-coverage, high-positioning-speed, especially in the outdoor environment. GPS combines with the attitude module which constitutes integrated navigation [2, 3].