Receiving device, laser radar comprising same and detection method

A technology of laser radar and receiving device, which is applied in the field of laser detection to achieve the effects of prolonging exposure time, improving detection and imaging performance, and improving imaging quality

Pending Publication Date: 2022-06-21
HESAI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no solution suitable for solid-state radar to obtain color image and point cloud data fusion information in the existing technology

Method used

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  • Receiving device, laser radar comprising same and detection method
  • Receiving device, laser radar comprising same and detection method
  • Receiving device, laser radar comprising same and detection method

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Embodiment Construction

[0097] In the following, only certain exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0098] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "top", "bottom", "front", " Or The positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed ...

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Abstract

The invention provides a receiving device capable of being used for a laser radar, and the device comprises a receiving optical assembly which is configured to receive and converge an echo, reflected by a target object, of a detection light beam of a first wave band emitted by the laser radar and a light beam of a second wave band, and the second wave band does not comprise the first wave band; the light splitting unit is arranged at the downstream of the light path of the receiving optical assembly and is configured to separate the reflection echo of the detection light beam from the light path of the light beam of the second wave band; the detection device comprises at least one group of detection units, is arranged at the downstream of the light path of the light splitting unit and is configured to receive reflection echoes of the detection light beams from the light splitting unit and convert the reflection echoes into electric signals; and the imaging device comprises at least one group of imaging units, is arranged at the downstream of the light path of the light splitting unit, and is configured to receive the light beam of the second wave band from the light splitting unit and perform imaging.

Description

technical field [0001] The present invention generally relates to the technical field of laser detection, and in particular, to a laser radar receiving device, a laser radar including the same, and a detection method thereof. Background technique [0002] Lidar itself does not have the ability to obtain true color images, or the ability to distinguish colors. For many scenarios, such as traffic lights, existing lidar systems cannot distinguish objects of the same shape and size but different colors when working alone. [0003] With the development of autonomous driving, more and more attention has been paid to the fusion of point cloud information of lidar and color images of visible light cameras. The existing methods for obtaining point cloud and image fusion information mainly include the following: [0004] One way is to fuse the data of radar and camera working separately to obtain "color image" and "distance information". However, as two sets of devices with independ...

Claims

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Application Information

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IPC IPC(8): G01S7/493G01S7/481
CPCG01S7/493G01S7/481
Inventor 刘豪朱雪洲许森向少卿
Owner HESAI TECH CO LTD
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