Invention Grant
- Patent Title: LIDAR sensor window configuration for improved data integrity
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Application No.: US15417654Application Date: 2017-01-27
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Publication No.: US10168423B2Publication Date: 2019-01-01
- Inventor: Peter Craig Lombrozo , Felix Jose Alvarez Rivera
- Applicant: Waymo LLC
- Applicant Address: US CA Mountain View
- Assignee: Waymo LLC
- Current Assignee: Waymo LLC
- Current Assignee Address: US CA Mountain View
- Agency: Lerner, David, Littenberg, Krumholz & Mentlik, LLP
- Main IPC: G01C22/00
- IPC: G01C22/00 ; G05D1/00 ; G01S7/497 ; G01S17/93 ; G01S7/481 ; G06T7/00 ; G05D1/02 ; G01N21/25 ; G01N1/10 ; G01C3/08

Abstract:
The disclosure relates to determining whether an optical interferent is located on a sensor window and providing a way to identify and discard erroneous sensor data. An example system includes a housing, having a first sensor window and a second sensor window, a laser light source, and an optical sensor. The first window has a first property for deflecting water, and the second window has a second property for deflecting water different from the first property. The source is configured to generate a beam of light through the first window. One or more processors are configured to receive sensor data from the optical sensor and determine that an optical interferent is located on a surface of at least one of the first window and the sensor window based on a comparison between sensor data corresponding to the first window and sensor data corresponding to the second window.
Public/Granted literature
- US20180217242A1 LIDAR SENSOR WINDOW CONFIGURATION FOR IMPROVED DATA INTEGRITY Public/Granted day:2018-08-02
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