公开(公告)号：US10891850B1

公开(公告)日：2021-01-12

申请号：US16808682

申请日：2020-03-04

Applicant: Waymo LLC

Inventor： Darren Xinhang Chen ,  David Gordon Duff ,  Alexander Norton Meade

IPC: G08B21/20 ,  H05K5/02 ,  G01N25/66 ,  B01D53/26

Abstract: Aspects of the disclosure relate to reducing replacing a desiccant cartridge based upon a condensation risk. In one example, first information corresponding to a current dew point within a sensor housing of a sensor and second information identifying temperature data corresponding to a predefined area where the sensor is projected to travel may be received. Based upon the first and second information a condensation risk corresponding to the likelihood of condensation forming within the sensor housing in the event it traveled within the predefined area based upon the current dew point and the temperature data may be determined. Based upon the determined condensation risk, an indication that a desiccant cartridge within the sensor housing should be replaced to reduce the current dew point and the condensation risk may be provided.