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A laser radar system

A laser radar and laser signal technology, applied to radio wave measurement systems, instruments, etc., can solve the problem of increasing the size of the laser radar system, achieve low-cost mass production, and take into account the effect of size and cost

Active Publication Date: 2022-05-17
TANWAY TECH (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] While ensuring a high number of lines, since the number of measurement points generated at the same time increases exponentially, higher size and quantity requirements will be put forward for the transceiver module and data processing module, and the size of the entire laser radar system will inevitably increase. Big

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Embodiment Construction

[0037] In order to better understand the above purpose, features and advantages of the present application, the solution of the present application will be further described below. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0038] In the following description, a lot of specific details have been set forth in order to fully understand the present application, but the present application can also be implemented in other ways different from those described here; obviously, the embodiments in the description are only a part of the present application, and Not all examples.

[0039] In the related technology, currently on the market, the number of vertical lines of lidar systems is mainly 16 lines and 64 lines. There are few lidar systems that can achieve about 100 lines or even higher lines, and they cannot take into account both size and cost. The goal of l...

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Abstract

The present application relates to a laser radar system, which includes: an optical rotating mirror and at least two laser transceiver modules; the laser transceiver module includes a transmitting unit and a receiving unit; the transmitting unit is used to transmit laser signals; The optical rotating mirror is used to rotate around the vertical rotation axis, receive the laser signal and adjust the direction of the laser signal during the rotation, and reflect the laser signal to the target object, and the laser signal is on the target object The diffusely reflected echo signal is reflected by the optical rotating mirror and then received by the receiving unit; the receiving unit includes a plurality of detectors arranged in an array. The lidar system provided by the embodiment of the present application can double the number of vertical lines while keeping the horizontal field of view constant, and has a simple structure and is easy to implement.

Description

technical field [0001] The present application relates to the technical field of photoelectric measurement, in particular to a laser radar system. Background technique [0002] The lidar system was originally mainly used for surveying and mapping on platforms such as satellites and aircraft. In recent years, it has gradually entered the civilian market and developed rapidly in fields such as autonomous driving. Taking the scenario of autonomous driving of passenger cars as an example, the lidar system that meets the requirements of vehicle regulations and measurement capabilities in this scenario needs to meet sufficient indicators in terms of reliability, stability, performance, and cost. Lidar systems are usually divided into mechanical Lidar systems and solid-state Lidar systems. Solid-state Lidar systems do not require continuous rotation of most modules of the whole machine, so they are smaller in size and better in stability. With continuous improvement, the cost can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/481
CPCG01S7/4817G01S7/4816
Inventor 李洪鹏郑睿童张正杰王世玮沈罗丰时菲菲
Owner TANWAY TECH (BEIJING) CO LTD