UAV measurement and control link interruption fault emergency treatment method

Abstract

The invention discloses an emergency treatment method for UAV measurement and control link interruption failure, which aims to provide a method for improving the overall reliability of the system, minimizing accident losses, and providing a technical selection method for emergency monitoring of sudden events. The present invention is realized through the following technical scheme. Based on the emergency monitoring system of the UAV platform, the airborne flight control computer divides the UAV measurement and control link in the flight control system into L band and UHF band, and divides them according to their positions. The flight control system uses the L-band data preferentially in the management of the measurement and control link, and uses the U-band data when the L-band data is interrupted; the airborne flight control computer adjusts the fault setting Different, through the decision speed threshold set by the fault handling program software, the normal display of the monitoring screen is set to generate the criterion, read and process the data sent by the test instrument for control, self-test comparison monitoring and model monitoring methods to monitor faults in flight.

Description

technical field [0001] The invention relates to an emergency disposal method which is mainly used when the monitoring and control link of a high-altitude and high-speed unmanned aircraft is interrupted. Background technique [0002] UAV UAV monitoring and information transmission mainly completes the transmission of remote control commands, telemetry parameters and image information to the UAV. It is the only bridge and link connecting the ground operator and the UAV, and plays a very important role in the UAV system. important role. The flight of the UAV is mainly realized by the automatic control of the flight control system, but the conversion of the control mode requires manual intervention, or the control target can be adjusted manually. In fact, it is a control method in which the decision-making information is not comprehensive enough or the decision-making is not sure enough, and then supplemented by human perception. The unmanned aircraft and the ground personnel ...

AI Technical Summary

Problems solved by technology

Since the UAV data link system is a huge and complex system, it is impossible to carry out emergency monitoring on it in the actual environment. The data management unit or communication manager has many tasks, and the implementation is complicated, which will inevitably lead to the reduction of equipment reliability.

Due to the limitation of channel bandwidth, there are inevitable delays in remote control telemetry data and unavoidable large manipulation delays in UAV links

The control personnel in the UAV ground control station must rely on the airborne sensor to feel the flight status and transmit it through telemetry. Once the sensor fails, if the UAV cannot be seen visually, theoretically speaking It is also impossible to find all the problems and become the bottleneck of the entire UAV data chain. Once a failure occurs, the entire measurement, control and information transmission system will be paralyzed

and their test systems are relatively expensive compared to UAV data link systems

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