Lidar vision systems

A technology of laser radar and light direction, which is applied in the field of light detection and ranging systems of vehicles, and can solve the problems of limited light receiving efficiency and inability to detect

Pending Publication Date: 2021-06-18
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
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Problems solved by technology

Such vehicular lidars may have limited light-receiving efficiency for far-field targets, making it impossible to detect some objects outside a specific area near the vehicle, or rely on the use of high-energy laser sources and / or large apertures to improve light-receiving efficiency in order to Enable far-field object detection

Method used

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  • Lidar vision systems
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Embodiment Construction

[0028] The following detailed description is merely exemplary in nature and is not intended to limit the disclosure or its application and uses. Furthermore, there is no intention to be bound by any theory presented in the preceding background or the following detailed description.

[0029] figure 1 A vehicle 100 is shown according to an exemplary embodiment. As described in more detail below, the vehicle 100 includes one or more lidar systems 102 mounted on the vehicle 100 . Such as figure 1 As shown, in various embodiments, each lidar system 102 includes one or more corresponding scanners 101 and receivers 103 .

[0030] In various embodiments, each scanner 101 is configured to direct illumination within a particular range of illumination directions. Also in various embodiments, each scanner 101 includes a light source 105 (and, in some embodiments, a mirror 111). Additionally, also in various embodiments, each receiver 103 includes a light intensity receiver including ...

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Abstract

A LiDAR is provided that is configured for installation in a mobile platform. The LiDAR includes a scanner and a light-intensity receiver. The scanner includes a light source configured to direct illumination in an illuminating direction. The light-intensity receiver includes one or more light-intensity sensors; and one or more lens assemblies configured with respect to the one or more light-intensity sensors, such that that at least one sensor plane from the one or more light-intensity sensors is tilted to form a non-zero angle with at least one equivalent lens plane from the one or more lens assemblies, transferring the sensor focal plane to be align with the main light illumination direction and be consistent with the direction of movement of a mobile platform.

Description

technical field [0001] The present disclosure generally relates to the field of mobile platforms, and more particularly, to light detection and ranging (LIDAR) systems for vehicles (or mobile platforms). Background technique [0002] Some vehicles include one or more vehicle lidars, which can measure the distance to an object by shining laser light on the object and detecting the reflected light with a sensor installed in the lidar receiver. LiDAR systems can determine depth information for objects around the vehicle, which is provided in point cloud format to one or more vehicle systems for sensor fusion, such as autonomous driving perception systems. Such vehicular lidars may have limited light-receiving efficiency for far-field targets, making it impossible to detect some objects outside a specific area near the vehicle, or rely on the use of high-energy laser sources and / or large apertures to improve light-receiving efficiency in order to Realize far-field target detect...

Claims

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Application Information

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IPC IPC(8): G01S17/931G01S7/481
CPCG01S17/931G01S7/4817G01S7/4816G01S7/4813
Inventor W.曾S.曾S.E.帕里什
Owner GM GLOBAL TECH OPERATIONS LLC
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