System for pilotless plane to automatically avoid barrier and avoiding method of system

A technology of unmanned aircraft and obstacles, applied in the field of unmanned aircraft safety flight system, can solve the problems of poor anti-interference ability, lack of automatic obstacle avoidance system and method, etc., achieve strong anti-interference ability, simple structure, improve detection effect of ability

Inactive Publication Date: 2012-10-24
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: in order to solve the problem of the poor anti-interference ability of the laser ranging device of the existing unmanned aircraft, and the problem of avoiding obstacles such as high-voltage cables and oth

Method used

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  • System for pilotless plane to automatically avoid barrier and avoiding method of system
  • System for pilotless plane to automatically avoid barrier and avoiding method of system
  • System for pilotless plane to automatically avoid barrier and avoiding method of system

Examples

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Embodiment 1

[0053] Embodiment 1, the laser control and data processing module 3 includes an on-off unit for controlling the laser transmitter 1, a phase detection unit and a data processing unit. The laser transmitter 1 is a laser transmitter 1 that emits modulated laser signals.

Embodiment 2

[0054] Embodiment 2, the laser control and data processing module 3 includes an on-off unit for controlling the laser transmitter 1, a clock identification unit, a clock interval measurement unit and a data processing unit. The laser transmitter 1 is a laser transmitter 1 that emits pulsed laser signals.

[0055] The receiving module includes a laser photosensitive device 6 and an optical telephoto lens 7 arranged at the receiving end of the laser photosensitive device 6 .

[0056] In the airborne signal control, there is a threshold for comparison with the measured distance, which is the safe distance between the UAV and the obstacle.

[0057] A method for automatically avoiding obstacles by an unmanned aircraft using the system for automatically avoiding obstacles by an unmanned aircraft has the following steps:

[0058] (a) The unmanned aircraft flies according to the original route, and the laser distance measuring device periodically measures the distance to the surroundi...

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Abstract

The invention provides a system for a pilotless plane to automatically avoid a barrier and an avoiding method of the system. The system comprises a laser distance measuring device, a plane-mounted signal control system, a plane-mounted air route database, a plane-mounted communication system and a navigational flight control system. The system particularly has good avoiding function to small barriers such as a high-voltage cable and the like due to the designed laser fan-beam scanning device and simultaneously can emit a plurality of light beams to the barrier within a short time, thereby solving the problem that the measured data are inaccurate as single-beam laser is easily blocked by particulate matters such as mist, foam, dust and envapour in the air in the past and improving the anti-interference capacity of the laser distance measurement and making the pilotless plane with the automatic avoiding device to efficiently, and therefore, the pilotless plane provided with an automatic avoiding device can complete the flight mission in a relatively complicated geographical environment safely and quickly.

Description

technical field [0001] The invention relates to an unmanned aircraft safety flight system and its application, in particular to an unmanned aircraft automatic obstacle avoidance system and an avoidance method thereof. Background technique [0002] An unmanned aircraft is a non-manned aircraft that is operated by radio remote control equipment or by its own program control device to perform tasks. General unmanned aircraft will be installed with navigation flight control system, program control device and power supply equipment. military significance and economic status. [0003] Unmanned aircraft mainly have the advantages of relatively low cost, no danger of casualties, strong survivability, and good maneuverability. But also because it is unmanned, unmanned aircraft can only rely on the aircraft's own flight control system or the instructions of the ground control center to fly, so when encountering obstacles such as high-voltage cables, trees or buildings, especially us...

Claims

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Application Information

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IPC IPC(8): G05D1/10
Inventor 陈树越张平
Owner CHANGZHOU UNIV
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