公开(公告)号：US20160178802A1

公开(公告)日：2016-06-23

申请号：US14578638

申请日：2014-12-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： INNA STAINVAS OLSHANSKY ,  YOSI BUDA ,  ARIEL LIPSON

IPC: G01W1/10 ,  G01N21/55 ,  G01N21/49

CPC classification number: G01W1/10 ,  B60W40/06 ,  B60W40/068 ,  G01N21/4738 ,  G01N21/49 ,  G01N21/55 ,  G01N21/94 ,  G01N2021/556 ,  G01N2021/557 ,  G01N2021/945 ,  G01N2201/125 ,  G01S7/4802 ,  G01S17/936 ,  G01S17/95 ,  Y02A90/19

Abstract: A method of determining a surface condition of a road of travel. A light beam directed at a surface in the road of travel is transmitted utilizing a lidar system. A response is analyzed at a photodetector of the lidar system after transmitting the light beam. A determination is made whether a form of precipitation is present on the road of travel in response to analyzing the response at the photodetector. A precipitation indicating signal is generated in response to the determination that the ground surface includes a form of precipitation on the road of travel.

Abstract translation: 一种确定行驶道路表面状况的方法。 利用激光雷达系统传送指向行进道路表面的光束。 在发射光束之后，在激光雷达系统的光电检测器处分析响应。 响应于分析光电检测器上的响应，确定行驶道路上是否存在形式的降水。 响应于地面在行驶道路上包括降水形式的确定而产生降水指示信号。