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Airborne lidar system based on unmanned aerial vehicle

A technology of laser radar and unmanned aerial vehicles, applied in the direction of radio wave measurement systems, instruments, etc., can solve the problems of limited battery capacity, battery power exhaustion, etc.

Pending Publication Date: 2019-01-18
山东国耀量子雷达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, drones rely on batteries for power supply, and the battery capacity is limited. The lidar mounted on the drone can only rely on battery power. If the air conditioner is used for temperature control, the battery power will be exhausted quickly.

Method used

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  • Airborne lidar system based on unmanned aerial vehicle
  • Airborne lidar system based on unmanned aerial vehicle
  • Airborne lidar system based on unmanned aerial vehicle

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Embodiment

[0039] figure 1 It is a laser radar structure diagram of an unmanned aerial vehicle-based airborne laser radar system provided by an embodiment of the present invention.

[0040] Unmanned aircraft, referred to as "unmanned aerial vehicle" ("UAV"), is an unmanned aircraft controlled by radio remote control equipment and its own program control device.

[0041] According to civil aviation regulations, UAVs can be classified into micro UAVs, light UAVs, small UAVs and large UAVs. Micro unmanned aerial vehicle refers to the unmanned aerial vehicle with an empty mass of less than or equal to 7kg, and light unmanned aerial vehicle refers to an unmanned aerial vehicle with a mass greater than 7kg but less than or equal to 116kg, and the corrected airspeed is less than 100km / h (55nmile / h ), ceiling less than 3000m. Small UAVs refer to UAVs with an empty mass of less than or equal to 5700kg, except for micro and light UAVs. Large drones refer to drones with an empty mass greater tha...

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Abstract

The invention discloses an airborne lidar system based on an unmanned aerial vehicle. According to the system, a telescope module and a plurality of passive lidar optical-components are disposed in anoptical thermal-insulation chamber, and a temperature control module is disposed for precise and organic temperature control on a passive optical module, a laser source, a detector, a data collectionmodule and a main control module of the whole lidar system. According to the system, a cold gas bottle storing compressed gas is adopted as a core component of a refrigeration unit, and rapid and effective cooling is carried out on the passive optical module of lidar, and normal working of core components of the lidar is guaranteed; and the compressed gas in the cold gas bottle carries out rapidrefrigeration in a releasing process, the whole process does completely not consume battery power of the lidar or even the whole unmanned aerial vehicle, and the contradiction between limited batterypower supplying of the unmanned aerial vehicle and strict temperature control of the lidar is ingeniously solved.

Description

technical field [0001] The invention relates to a laser radar system, in particular to an airborne laser radar system based on an unmanned aerial vehicle. Background technique [0002] Lidar is an active modern optical remote sensing technology, which is the product of the combination of traditional radar technology and modern laser technology. Laser has the characteristics of high brightness, high directivity, high coherence, and high peak power. Therefore, lidar has the advantages of high angular resolution, high distance resolution, high time resolution, high measurement accuracy, long detection distance, multi-target detection, and strong anti-interference. Following microwave radar, lidar increases the frequency of radiation sources to optical frequencies, four orders of magnitude higher than millimeter waves, which enables detection of tiny natural targets such as aerosols and molecules in the atmosphere. With the development of laser technology and optoelectronics t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/481
CPCG01S7/481
Inventor 岳斌王冲王乾坤董晶晶余超夏海云
Owner 山东国耀量子雷达科技有限公司
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