Inspection, repair high-voltage tower high voltage line maintenance is a long and arduous task. Traditional transmission line main problems are: long distance transmission line, heavy workload, foot patrol line efficiency is very slow to improve the efficiency of the transmission line; encounter snow and ice floods, earthquakes, landslides and other natural disasters, weather, transmission line will not work conduct; mountain patrol line with high risk, threatening the safety of personnel patrol line. In the mountain forest biological toxic more and more, especially in the summer "ticks" Once bitten will be life-threatening, the greatest threat to those pitfalls and traps invisible folder.

The UAV patrol lines are portable, simple operation, quick response, rich load, use a wide range of tasks, takeoff and landing on the environment of low demand, autonomous flight. With multi-rotor aircraft this powerful tool, so that line inspection, maintenance becomes simple line tower work. Especially in the mountainous regions of the transmission line, to better take advantage of the aircraft. According to the relevant information indicates that: drones patrol the line 40 times higher than the manual transmission line efficiency. Meanwhile UAV transmission line having fast transient response characteristics of speed and can detect defects, to provide timely information to avoid the line outage to restore the high cost of power loss.