Monitoring system for unmanned-aerial-vehicle body damage

Abstract

The invention provides a monitoring system for unmanned-aerial-vehicle body damage. The system includes an unmanned-aerial-vehicle body, a BOTDA system and a ground control station, the BOTDA system is loaded on the unmanned-aerial-vehicle body, and real-time communication between the BOTDA system and the ground control station is achieved through a communication system; the BOTDA system includesan optical part, a software part and a hardware part, and the optical part includes a tunable laser, an electro-optic controller, a polarization controller, an optical attenuator, an optical isolatorand a photoelectric detector; the software part includes a tunable laser drive circuit, an electro-optic modulator drive circuit, a polarization controller drive circuit, a signal amplification circuit, a data acquisition circuit and a microwave frequency detection circuit. The provided monitoring system for unmanned-aerial-vehicle body damage has the advantages that a fiber bragg grating sensor has light weight, small size, high temperature resistance, corrosion resistance, anti-electromagnetic interference, good reliability, high measurement accuracy, many measurement points and a large measurement range, and the measurement result can be sent back to a ground control center in real time through a wireless communication module.

Description

technical field [0001] The invention relates to an unmanned aerial vehicle, in particular to a damage monitoring system for an unmanned aerial vehicle fuselage. Background technique [0002] Unmanned aircraft, referred to as "unmanned aerial vehicle" ("UAV"), is an unmanned aircraft controlled by radio remote control equipment and its own program control device. The UAV has the characteristics of maneuverability and flexibility, it is small in size and light in weight, and can be transported and carried at any time. It has low requirements for takeoff and landing, and can fly and land at any time. UAVs generally fly smoothly at low altitudes under clouds, which makes up for the shortcomings of satellite optical remote sensing and ordinary aerial photography that are often blocked by clouds and cannot obtain images. In addition to having broad military application prospects, the use of unmanned aerial vehicles to replace manned aircraft to perform high-risk tasks is also an...

AI Technical Summary

Problems solved by technology

The existing traditional electrical sensors have disadvantages compared with optical fiber sensors: (1) It is easy to be limited by environmental factors and cannot work normally in extreme flight environments, which will inevitably affect the safety of drones and lead to catastrophic ACCIDENT

(2) Point sensors can only measure one or more points, collect less data, and it is difficult to achieve time synchronization between multiple measurement points, and it is difficult to achieve comprehensive and real-time monitoring of UAVs

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