Lidar, measuring method thereof and storage medium

A technology of lidar and measurement results, which is applied in the field of radar and can solve the problems of difficult and long-distance measurement of lidar

Inactive Publication Date: 2019-04-30
BENEWAKE BEIJING TECH CO LTD
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  • Abstract
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Problems solved by technology

[0004] The transmission power of the laser signal is an important factor limiting the measurement distance of the laser radar. Due to safety restrictions, it is difficult for the existing laser radar to perform long-distance measurement

Method used

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  • Lidar, measuring method thereof and storage medium
  • Lidar, measuring method thereof and storage medium

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Embodiment Construction

[0053] In order to better understand the above technical solutions, the technical solutions of the embodiments of this specification will be described in detail below through the drawings and specific examples. It should be understood that the embodiments of this specification and the specific features in the embodiments are the technical solutions of the embodiments of this specification. It is a detailed description, rather than a limitation to the technical solutions of this specification. In the case of no conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0054] An embodiment of the present invention provides a laser radar, such as figure 1As shown, it includes a laser transmitting module 101 with adjustable transmitting power, a receiving module 102 and a control module 103 .

[0055] Optionally, the laser emitting module 101 further includes a light source 1011 and a driving circuit 1012 for t...

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Abstract

The embodiment of the invention provides a lidar, a measuring method thereof and a storage medium. The lidar comprises a laser transmitting module with adjustable transmitting power, a receiving module and a control module. According to the control module, the laser transmitting module is controlled to use safe transmitting power to transmit laser signals, and the receiving module is controlled todetect the test echo signals for the laser signals transmitted by using the safe transmitting power; after the test echo signals are determined not to be detected or the signal intensity of the testecho signals is smaller than a first signal intensity threshold, the laser transmitting module is controlled to improve the transmitting power for transmitting the laser signals for at least one time,the receiving module is controlled to detect target echo signals, and the target echo signals are the echo signals for the laser signals transmitted with the improved transmitting power; and a measurement result is acquired by using the target echo signals. The embodiment of the invention can perform long-distance measurement on the premise of ensuring eye safety.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of radar, and in particular, to a laser radar, a measurement method thereof, and a storage medium. Background technique [0002] LiDAR is a radar system that detects the distance feature quantity of a target object by emitting light beams. Its working principle is to emit a laser signal (beam), and then properly process the received echo signal reflected from the target object to obtain the characteristic quantity of the target object, such as the distance of the target object, the reflectivity of the target object, and so on. [0003] LiDAR has a wide range of application scenarios, and has been used in unmanned driving, drones, industrial robots, service robots and other fields. In quite a few scenarios, humans and other creatures may appear within the measurement range of the lidar, so it is necessary to ensure that the laser signal will not cause damage to the eyes of the creature,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/88G01S7/497
CPCG01S7/497G01S17/88
Inventor 李远疏达石勤坡王瑞郑凯
Owner BENEWAKE BEIJING TECH CO LTD
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