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1. (WO2018165937) DISTANCE-MEASURING SENSOR AND PLANT PROTECTION UNMANNED AERIAL VEHICLE HAVING DISTANCE-MEASURING SENSOR

Pub. No.:    WO/2018/165937    International Application No.:    PCT/CN2017/076889
Publication Date: Fri Sep 21 01:59:59 CEST 2018 International Filing Date: Fri Mar 17 00:59:59 CET 2017
IPC: G01S 7/481
G01S 17/08
B64D 1/18
Applicants: SZ DJI TECHNOLOGY CO., LTD.
深圳市大疆创新科技有限公司
Inventors: GUAN, Yijun
关毅骏
WU, Xiaolong
吴晓龙
Title: DISTANCE-MEASURING SENSOR AND PLANT PROTECTION UNMANNED AERIAL VEHICLE HAVING DISTANCE-MEASURING SENSOR
Abstract:
Disclosed is a distance-measuring sensor (1) and a plant protection unmanned aerial vehicle having the distance-measuring sensor (1), the distance-measuring sensor (1) comprising a housing (10), a distance-measuring module (20) arranged inside the housing (10) and a blower device (30) arranged inside the housing (10). A signal pick-up window (100) for a distance-measuring module (20) detecting a signal is provided on the housing (10), an air guiding passage (300) connected to the signal pick-up window (100) is provided on the blower device (30), and the air guiding passage (300) guides an airflow generated by the blower device (30) inside the housing (10) to be expelled out of the housing (10) from the signal pick-up window (100). The blower device (30) blows air inside the housing (10) to generate the airflow, and then guides the airflow to be expelled out of the housing (10) from the signal pick-up window (100) by means of the air guiding passage (300), forming an air curtain, such that external dust or water mist can be effectively prevented from entering the housing (10) and affecting and interfering with the test range and test results of the distance-measuring module (20).