A drone avoidance system
A technology of UAV and human-computer interaction unit, which is applied in the field of UAV avoidance system to achieve the effect of comprehensive obstacle avoidance
Active Publication Date: 2019-03-29
SHANGHAI NORMAL UNIVERSITY
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[0003] The purpose of the invention is to provide a UAV avoidance system to solve the defects in the existing UAV avoidance system
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[0030] The present invention relates to an avoidance system based on a three-dimensional model. The following examples further illustrate the content of the invention by combining the avoidance system of an unmanned aircraft as an embodiment.
[0031] The latest research on drones has demonstrated its automatic avoidance technology, through multiple 3D cameras, which can detect geographic environment and location information. Such as figure 1 As shown, the avoidance system based on the three-dimensional experience model of the present invention includes two or more color depth cameras, a visual processing unit and a human-computer interaction unit. The camera is installed on the drone and connected with the vision processor through wires.
[0032] The 3D empirical model mainly records the 3D state information of everyday common objects, including color information, corresponding pixel information, and safety distance information. When the UAV is working, the camera records v...
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An avoidance system for unmanned aerial vehicles comprises a processor, a depth camera, a human-computer interaction unit, and a 3D experience library. The depth camera is used for acquiring images of an obstacle at different angles. The 3D experience library is used for storing 3D image information. Through the 3D experience library, color depth information and size and safety distance information of all kinds of obstacles are recorded, and query and matching functions needed after the processor acquires information are provided. The processor is used for calculating the depth of an image. The human-computer interaction unit is used for increasing the attribute of 3D data, editing the attribute of an obstacle in a set distance range to determine the safety distance of the obstacle, and storing the safety distance in the 3D experience library, wherein the attribute record contains object image front size, color depth, number of pixels, and safety distance. The system acquires the edge information of an obstacle and calculates the 3D physical size of the obstacle by calculating the color depth of the obstacle, and acquires the distance and size information of the obstacle through image pixel calculation and the 3D experience library.
Description
technical field [0001] The invention belongs to the technical field of unmanned aerial vehicles, in particular to an avoidance system for unmanned aerial vehicles. Background technique [0002] With the continuous development of drone technology, drones are not only widely used in industry, but also in military, civilian, research and other aspects. Due to the complexity of the task, it is inevitable for the UAV to avoid obstacles during flight. There are many ways for UAVs to avoid obstacles. Common technologies include ultrasonic technology, infrared technology, and laser positioning technology. Various technologies have their own advantages and disadvantages, such as ultrasonic technology, which has a certain distance limit and has certain requirements for the surface reflection ability of reflectors. Infrared technology has a small receiving range, and the temperature of obstacles also has a certain influence on the measurement. Contents of the invention [0003] The...
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IPC IPC(8): G05D1/10
CPCG05D1/101
Inventor 杨敏
Owner SHANGHAI NORMAL UNIVERSITY