LASER MEASUREMENT KEY TECHNOLOGIES AND APPLICATION IN ROBOT AUTONOMOUS NAVIGATION

Abstract

The laser ranging has extensive detection range and high measurement accuracy and so it is widely applied in navigation systems of the autonomous robot. But different environmental conditions have different influences on the transmission of the laser, producing errors of various degrees to measurement. The proposed range of influence in research on laser ranging LMS200 which is used in robot navigation under dissimilar conditions, by analyzing the primary factor that affects LMS200 ranging in a room and outside, contributing to the experimental contrast, obtaining experimental effects under environmentally influencing factors, discovering reflectivity, incidence, mixed pixel and visibility and so on that are environmental factors truly affecting practical application, builds the foundation for carrying out the ranging application of robot navigation. Mobile robots need enough sensor information of movements for carrying out autonomous navigation. The information establishment environment model in the completely unknown environment, depends upon itself to provide sensors to the robot that carries out autonomous localization and navigation. This paper also systematically introduces the applied research of laser ranging in mobile robot autonomous navigation, carrying out the scanning of the environment through the two-dimensional range finder sensor, proposed in autonomous navigation of map building and localization that uses two-dimensional scanning to obtain three-dimensional data stream, the experiment confirms that this algorithm allows the robot to obtain a very good three-dimensional visual structure drawing.