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MEMS one-dimensional laser radar and digital camera surveying and mapping device and method

A technology of digital camera and laser radar, which is applied in the direction of measuring device, radio wave measuring system, electromagnetic wave re-radiation, etc., can solve the problems of increasing cost, increasing weight and volume, etc.

Pending Publication Date: 2020-12-29
INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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Problems solved by technology

[0003] At present, the integration of laser radar and camera is realized through the structure and control integration of digital camera module with lens and laser scanning ranging module, so that laser emission and reception need their own lenses to realize, which ultimately increases the cost and also increases In addition to the weight and volume, a UAV platform with a stronger load capacity is required for carrying

Method used

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  • MEMS one-dimensional laser radar and digital camera surveying and mapping device and method
  • MEMS one-dimensional laser radar and digital camera surveying and mapping device and method
  • MEMS one-dimensional laser radar and digital camera surveying and mapping device and method

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Embodiment approach

[0040] like figure 1 As shown, a MEMS one-dimensional laser radar and digital camera surveying and mapping device of the present invention includes an integrated scanning field of view realizing device and an echo receiving and processing device;

[0041] (1) Scanning field of view realization device

[0042] The device for realizing the scanning field of view includes a near-infrared laser 1, an emission beam collimating mirror group and a one-dimensional MEMS vibrating mirror 3; the optical axis of the emitting beam of the near-infrared laser 1 is the same as the axis of the emitting beam collimating mirror group axis, the exit angle of the emitted light beam collimating lens group forms a certain angle with the installation reference plane of the one-dimensional MEMS vibrating mirror 3, and the one-dimensional MEMS vibrating mirror 3 also forms a certain angle with its installation reference plane when the one-dimensional MEMS vibrating mirror 3 is at the 0° position. Angl...

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Abstract

The invention discloses an MEMS one-dimensional laser radar and digital camera surveying and mapping device and method. The surveying and mapping device comprises a scanning view field implementationdevice and an echo receiving and processing device which are integrally arranged. The scanning view field implementation device comprises a near-infrared laser, an emitted light beam collimating mirror group and a one-dimensional MEMS galvanometer. The echo receiving and processing device comprises a receiving mirror installation cylinder and a receiving mirror installed in the receiving mirror installation cylinder. In the light path design of near-infrared laser and visible light in a receiving mirror, automatic separation of the near-infrared laser and the visible light is realized througha notch reflection plane mirror, so that one set of receiving mirror can be shared when ground object target space coordinate information measurement and ground object target image data acquisition are carried out. In other words, the integration of a one-dimensional laser radar and a digital camera is realized through the notch reflection plane mirror.

Description

technical field [0001] The invention relates to the technical field of laser radar surveying and mapping, in particular to a MEMS one-dimensional laser radar and digital camera surveying and mapping device and method. Background technique [0002] LiDAR UAV surveying and mapping or line inspection often need to obtain the three-dimensional space information of the ground object and the texture data of the ground object for the production of data products such as DOM and DEM. [0003] At present, the integration of laser radar and camera is realized through the structure and control integration of digital camera module with lens and laser scanning ranging module, so that laser emission and reception need their own lenses to realize, which ultimately increases the cost and also increases In addition to the weight and volume, a UAV platform with a stronger load capacity is required to carry it. Contents of the invention [0004] The technical problem to be solved by the pres...

Claims

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Application Information

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IPC IPC(8): G01S17/89G01S17/86
CPCG01S17/89G01S17/86
Inventor 潘文武窦延娟唐丹游安清田俊林张林周文超张家如魏继峰黄德权
Owner INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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