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Title:
TOF DISTANCE MEASUREMENT SYSTEM AND MOVABLE PLATFORM
Document Type and Number:
WIPO Patent Application WO/2018/133089
Kind Code:
A1
Abstract:
A TOF distance measurement system and a movable platform. The TOF distance measurement system comprises: a light emitter (11), a receiver (12), a controller (13) and an optical system (14), the optical system (14) comprising at least one of a first optical signal processing apparatus (141) and a second optical signal processing apparatus (142); an optical signal emitted by the light emitter (11) passing through the first optical signal processing apparatus (141) so as to improve the radiation power density of the optical signal emitted by the light emitter (11); and an optical signal reflected by a target object (15) passing through a second optical signal processing apparatus (142) so as to improve the intensity of the optical signal reflected by the target object (15) and received by the receiver (12). By means of improving the radiation power density of the optical signal emitted by the light emitter (11) and/or improving the intensity of the optical signal reflected by the target object (15) and received by the receiver (12), the signal-to-noise ratio of a TOF distance measurement system can be improved, so that the TOF distance measurement system can detect a target object far away from the TOF distance measurement system, thereby improving the distance measurement range of the TOF distance measurement system.

Inventors:
XIE JIEBIN (CN)
ZHAN ZHIPENG (CN)
REN WEI (CN)
Application Number:
PCT/CN2017/072176
Publication Date:
July 26, 2018
Filing Date:
January 23, 2017
Export Citation:
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Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
G01S17/14
Foreign References:
JP2015161683A2015-09-07
CN103502841A2014-01-08
CN106338725A2017-01-18
CN103412313A2013-11-27
CN106817794A2017-06-09
CN104714220A2015-06-17
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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