校园智能车定位导航系统设计与实现

Design and Realization of Campus Intelligent Vehicle Positioning and Navigation System

为实现智能车平台在校园场景下自主定位和导航,提出一种校园智能车导航系统设计方法。采用惯性导航系统对智能车进行定位,激光雷达创建局部地图,利用混合A^(*)算法在局部地图中规划出合理的路径。整个系统中,上位机获取传感器采集的数据,通过惯性导航系统解算出智能车当前位姿,规划模块获取当前智能车位姿和周围障碍物信息后进行路径规划,并通过串口通信模块将路径信息传递给下位机控制模块,实现智能车的自主移动。实验结果表明:在校园内,智能车能够从起点出发,自主规划路径并绕过障碍物到达目标地点,验证了该导航系统的有效性。

In order to realize the autonomous positioning and navigation of the intelligent vehicle platform in the campus scene,a design method of the campus intelligent vehicle navigation system is proposed.The inertial navigation system is used to locate the intelligent vehicle,the lidar is used to create a local map,and the hybrid A^(*)algorithm is used to plan a reasonable path in the local map.In the entire system,the upper computer obtains the data collected by the sensor,calculates the current posture of the intelligent vehicle through the inertial navigation system,the planning module obtains the current posture of the intelligent vehicle and the surrounding obstacle information,then carries out the path planning,and transmits the path information to the lower computer control module through the serial communication module,so as to realize the autonomous movement of the intelligent vehicle.The experimental results show that:in the campus,the intelligent vehicle an start from the starting point,autonomously plan the path and bypass obstacles to reach the target location,which verifies the effectiveness of the navigation system.