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Obstacle avoidance detection system for unmanned aerial vehicle

A detection system and UAV technology, applied in three-dimensional position/channel control and other directions, can solve the problem that the network wall cannot be detected and is easy to hit obstacles, so as to reduce the probability of false detection of obstacles on the network wall, reduce The probability of hitting the wall obstacles and improving the detection effect

Pending Publication Date: 2022-07-29
CHONGQING VOCATIONAL COLLEGE OF TRANSPORTATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention intends to provide an obstacle avoidance detection system for unmanned aerial vehicles to solve the problem that it is easy to hit obstacles when the network wall cannot be detected

Method used

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  • Obstacle avoidance detection system for unmanned aerial vehicle

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Effect test

Embodiment 1

[0032] Obstacle avoidance detection systems for drones, such as figure 1 As shown, it includes a main detection module, a processing module, a flight control module, a background server, a positioning module and an auxiliary detection module. The signal of the main detection module is connected to the processing module. The main detection module includes an ultrasonic unit and a camera unit. The ultrasonic unit detects obstacles of obstacles The ultrasonic unit can use the ultrasonic detector on the existing UAV, the camera unit can take the flight image of the obstacle as the obstacle information, and the camera unit can use the existing aerial camera. The processing module can use the existing SOC chip, the signal of the processing module is connected to the flight control module, the flight control module can use the flight controller of the existing drone, and the processing module can wirelessly communicate with the background server through the existing 3G communicator, a...

Embodiment 2

[0044] The difference between the obstacle avoidance detection system for the UAV and the first embodiment is that when the auxiliary permission information is obtained, the processing module sends a deceleration signal to the flight control module, and the flight control module controls the UAV to reduce the flight speed. During auxiliary detection, reduce the flying speed of the UAV to prevent the UAV from hitting the network wall and being stuck due to its high speed. Accuracy of wall obstacles.

Embodiment 3

[0046] The difference between the obstacle avoidance detection system for drones and the first embodiment is that the processing module calculates the pixel width of the rod-shaped object on the flight image when it is determined to have a rod-shaped object. and compare the pixel width with the set width. The set width is set according to the existing interference sources. For example, the set width is 1cm. When the pixel width is greater than the set width, the processing module will then perform the calculation of the number of rods. count.

[0047] When a rod-shaped object is identified, first determine the width of the rod-shaped object, and then count when the width is greater than the set width, so as to eliminate the interference of some columnar communication base stations or poles, and reduce misjudgment caused by interference factors. The amount of data processing is large.

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Abstract

The invention relates to the field of unmanned aerial vehicle obstacle avoidance methods, in particular to an obstacle avoidance detection system for an unmanned aerial vehicle, which comprises a main detection module, a processing module, a flight control module, a background server, a positioning module and an auxiliary detection module, the main detection module detects obstacle information in front of the unmanned aerial vehicle; the processing module obtains parameter information from the obtained obstacle information; the flight control module controls the unmanned aerial vehicle to avoid obstacles according to the parameter information; the positioning module carries out real-time positioning on the flight position of the unmanned aerial vehicle, the processing module judges the probability that net wall obstacles exist in the flight environment of the unmanned aerial vehicle according to the flight position, when the probability is larger than a preset value, the processing module preliminarily judges whether the net wall obstacles exist or not, and if yes, auxiliary permission information of the auxiliary detection module is obtained from the background server; the processing module sends a starting signal to the auxiliary detection module; and the auxiliary detection module pumps air according to the starting signal to carry out auxiliary detection on obstacles. The probability that the unmanned aerial vehicle collides with a net wall obstacle is reduced.

Description

technical field [0001] The invention relates to the field of obstacle avoidance methods for unmanned aerial vehicles, in particular to an obstacle avoidance detection system for unmanned aerial vehicles. Background technique [0002] Unmanned aerial vehicles are unmanned aircraft operated by radio remote control equipment and self-contained program control devices, or fully or intermittently operated autonomously by on-board computers. Dangerous tasks, such as the use of drones for unmanned fire fighting in the wild, exploration of dangerous terrain in the wild, etc. [0003] When the UAV performs field tasks, due to the influence of high obstacles such as trees, walls or other buildings, the UAV is equipped with infrared or ultrasonic technology to detect obstacles, and perform obstacle avoidance operations in time to ensure The drone flies smoothly and is not disturbed by obstacles. [0004] However, when the drone is flying with infrared technology for obstacle detectio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/10
CPCG05D1/101
Inventor 卢江林望君儒熊如意程鹏卢佳园陈龙鲁守卿杨桂英冉闯
Owner CHONGQING VOCATIONAL COLLEGE OF TRANSPORTATION
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