Design of data transmission system of human-autonomous devices for UAV inspection of transmission line status

Abstract

The use of unmanned helicopters for line inspection is an important development direction for transmission line inspections. The unmanned helicopter inspection system can partially replace the line inspection workers and the manned helicopter inspection system, timely discover the faults and hidden dangers of the line, and transmit the situation on the ground to the ground control center to make correct judgments and eliminate line faults in time. The composition of the data link of the unmanned aerial vehicle (UAV) is designed as a data-code-coded code link implementation scheme based on single-chip microcomputer, which can realize the uplink remote control information, task information and management information. For multi-rotor UAVs, the load is limited, and long-distance operations are often required. In combination with people’s requirements for image quality, this paper designs a set of high-definition digital image data transmission system with small volume and low transmission delay, capturing images in real time with a high-definition camera mounted on a drone or single-player device, first convert the image to a video signal, and then transmitting the video signal to the modulation end of the microwave transmitter through compression processing, and loading the signal onto the carrier through the microwave transmitter. After being microwaved, the directional radiation is radiated to the microwave receiver of the tension tower or the drone, and the video image signal is demodulated by the microwave receiver. Sending this signal to a hard disk recorder or monitor enables unattended monitoring of the power line all day.