UAV measurement and control link interruption fault emergency processing method

Abstract

The invention discloses a UAV measurement and control link interruption fault emergency processing method, and aims to provide a technical selection method for improving the overall reliability of a system, reducing the accident loss to the minimum and providing emergency monitoring for sudden events. According to the technical scheme, the emergency monitoring system based on the unmanned aerial vehicle platform is characterized in that an airborne flight control computer divides an unmanned aerial vehicle measurement and control link in a flight control system into an L wave band and a UHF wave band, and the L wave band and the UHF wave band are classified into the measurement and control system according to the position. L wave band data is preferentially used in the management of the measurement and control link by the flight control system, and U wave band data is adopted under the condition that the L wave band data is interrupted. The airborne flight control computer performs flight control according to the current flight stage and flight speed. Different fault settings are set, generation of criteria is set through a decision speed threshold set by fault processing program software and normal display of a monitoring picture, data control sent by a test instrument is read and processed, and faults in flight are monitored in a self-detection comparison monitoring and modelmonitoring mode.

Description

technical field [0001] The invention relates to an emergency treatment method mainly used when the measurement and control link of a high-altitude and high-speed unmanned aircraft is interrupted. Background technique [0002] UAV UAV measurement and control and information transmission mainly completes the transmission of remote control commands, telemetry parameters and image information for UAVs. It is the only bridge and link connecting ground operators and UAVs, and plays a very important role in UAV systems. important role. The flight of the UAV is mainly realized through the automatic control of the flight control system, but the conversion of the control mode requires manual intervention, or the control target can be manually adjusted. 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 ground personnel real...

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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