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Laser radar detection method and laser radar detection device

A technology of laser radar and detection method, which is applied in the field of radar detection, can solve problems such as dangerous obstacles, and achieve the effect of eliminating blind spots in detection

Active Publication Date: 2017-06-20
BEIJING JIAXUN FEIHONG ELECTRIC CO LTD
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Problems solved by technology

[0005] Embodiments of the present invention provide a laser radar detection method and device, which can solve the problem of dangerous obstacles in the shadow area formed by obstacles blocking the scanning beam, and can also eliminate blind spots in the detection of special-shaped obstacles in the detection area

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  • Laser radar detection method and laser radar detection device
  • Laser radar detection method and laser radar detection device

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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only parts related to the present invention are shown in the drawings but not all content.

[0028] Figure 1a It is a flow chart of a laser radar detection method provided by the embodiment of the present invention. This embodiment is applicable to various situations of laser radar detection. The method can be executed by the detection device of the laser radar provided by the embodiment of the present invention. The device can It is realized by means of software and / or hardware. The method is applied to the case of multiple two-dimensional lidar detections, multi-line lidar detections, or three-dimensional lidar det...

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Abstract

The embodiments of the invention disclose a laser radar detection method and a laser radar detection device. The method comprises the following steps: if a target laser radar scans a first target obstacle in a target detection area, judging whether the length value of the projection of a scanning light beam emitted by the target laser radar on the first target obstacle is smaller than a target set value for judging dangerous obstacles; if the length value is smaller than the target set value, acquiring detection data acquired when a laser radar adjacent to the target laser radar scans the target detection area; and determining whether there is a dangerous obstacle in the target detection area based on the detection area. According to the embodiments of the invention, the problem that there is a dangerous obstacle in a shadow area formed when an obstacle blocks a scanning light beam is solved, and blind spots for detection of special-shaped obstacles in a detection area can be eliminated.

Description

technical field [0001] The invention relates to the technical field of radar detection, in particular to a laser radar detection method and device. Background technique [0002] Transportation plays an important role in the national economy, and transportation safety is a major issue related to the national economy and people's livelihood. At present, Chinese railway companies have begun to use laser radar to scan and measure within the safety limits of railway traffic to find obstacles that exceed the size of the safe range and avoid danger to high-speed trains. [0003] At present, this line obstacle safety monitoring system collects echo distance, pan-tilt direction angle information, and relative position information between the sensor and the monitoring area, determines the position, speed and direction of obstacles through calculation, and analyzes the threat of obstacles to driving safety. degree. [0004] In practical applications, the scanning beam is easily block...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/93
CPCG01S17/93G01S17/931
Inventor 吕志东曹硕硕
Owner BEIJING JIAXUN FEIHONG ELECTRIC CO LTD
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