Ethernet-exchange-bus-based unmanned plane flight control system and method

Abstract

The invention provides an ethernet-exchange-bus-based unmanned plane flight control system and method. The system comprises a flight control computer (ARM), a flight indication lamp control module (LED+), an ultrasonic sensor, a light stream sensor, a power management unit (PMU), a storage battery, an inertia management unit (IMU), a satellite navigation unit (GPS / BD+), a motor, and a steering engine. An Ethernet exchange chip (LAN swtich) is embedded into the flight control computer (ARM) and is connected with the flight control computer (ARM) by an LAN and is connected with a flight control peripheral module by an LAN. The system and method have the following beneficial effects: a communication link between an unmanned plane and the ground is simplified; a high-definition digital image can be returned to the ground in real time or be connected to the interne or be passed back to a command center; the visual navigation, obstacle avoidance, and image target identification tracking are supported; the communication demand of the unmanned plane formation flight is satisfied; the traditional IOSD equipment as well as the investment are saved; and the new function of the modularized smooth extension flight control is supported.

Description

technical field [0001] The invention relates to a UAV flight control system, in particular to an Ethernet switching bus-based UAV flight control system and method. Background technique [0002] The development of flight control technology has gone from the first generation (stability enhancement), the second generation (autonomous navigation), to the third generation (image intelligent recognition and obstacle avoidance). The structure of the existing UAV flight control system is basically Based on the first-generation and second-generation technologies, there are bottlenecks in technological development, and the typical features are as follows: [0003] (1) Multiple communication links are used at the same time, and there are many devices: there are three kinds of links for the communication between the ground and the aircraft, the first kind of link is the remote control link, and the common link frequencies are 72M, 433M, 2.4G, 5.8G etc., this is a one-way wireless commu...

AI Technical Summary

Problems solved by technology

[0004] (2) Visual navigation, image recognition and obstacle avoidance are one of the main development directions of flight control technology. In the existing flight control technology architecture, the flight control computer cannot perform visual image processing at the same time when supporting the GPS+inertial navigation mode. At present, there are The best way is to send the image back to the ground, the ground computer performs visual processing, and then sends the result from the ground to the flight control computer. This structure has many problems when the wireless link between the ground and the flight control computer is broken.

[0005] (3) In the current consumer market, there is indeed an actual demand to directly share real images of UAVs to the Internet. In industrial UAVs, customers need to transmit digital high-definition video images to the monitoring and command center in real time. Traditional The flight control technology architecture does not support this IoT application mode of drones

[0006] (4) The return of existing video images is mostly based on analog video signals, the images are not clear, and a device called IOSD is needed, which actually superimposes the analog video signals of high-definition cameras and flight parameters Return to the ground, so although high-definition images are stored on the plane, the images returned to the ground are analog images superimposed with flight status parameters, and people often need to see high-definition digital images taken on the plane in real time

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