Emergency landing method of unmanned aerial vehicle based on radio and laser guiding

Abstract

The invention relates to an emergency landing method of an unmanned aerial vehicle based on radio and laser guiding. Equipment in the method comprises a laser scanner, laser receivers and a data processor; the laser scanner is arranged at the end of one end of a runway, a scanning center aligns to the center line of the runway, and a flake laser beam is emitted out in a scanning range of plus-minus five degrees to plus-minus ten degrees; two laser receivers are arranged at both ends of the wings of the unmanned aerial vehicle, and are connected with the data processor through cables; and the data processor is arranged inside an equipment compartment of the unmanned aerial vehicle. When a flight control system of the unmanned aerial vehicle judges that received GPS (Global Positioning System) data is in failure, the emergency landing of the unmanned aerial vehicle is realized through the combination of long-distance radio guiding and short-distance laser guiding.

Description

technical field [0001] The invention relates to a method for a UAV to land safely and accurately when the GPS device fails or the GPS signal is interfered and lost, which increases the safety of the UAV when it lands and improves the security conditions of the airport. Background technique [0002] When the UAV lands, it must approach the runway at a specific heading angle and altitude to land accurately. In this process, the traditional landing process is that the UAV uses the position information, altitude information, speed and direction information given by GPS to carry out navigation. track controlled. However, once the onboard GPS equipment fails or the GPS signal is interfered and lost, the entire guidance system will stop working, which will affect the safe landing of the UAV, and in severe cases, the UAV may even be lost and crashed. At present, in the safe recovery of taxiing, take-off and landing UAVs, few UAVs have emergency landing guidance systems. Less accur...

AI Technical Summary

Problems solved by technology

However, once the onboard GPS equipment fails or the GPS signal is interfered and lost, the entire guidance system will stop working, which will affect the safe landing of the UAV. In severe cases, the UAV may even be lost and crashed.

At present, in the safe recovery of taxiing, take-off and landing UAVs, few UAVs have an emergency landing guidance system. Less accurate radio guidance to land the drone, which greatly reduces the chances that the drone can land safely

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