Design and implementation of a laser tracking, aiming and charging system for micro-unmanned aerial vehicle

In order to improve the endurance of the micro-unmanned aerial vehicle (MUAV), based on the working principle of the two-axis scanning galvanometer, a remote real-time laser tracking and pointing charging system for the MUAV was designed. In the system, a silicon photocell array was used as the spot position sensor. Firstly, the signal was processed through a scanning tracking algorithm, then a wireless data transmission feedback link was established between the ground and the MUAV, and the emission direction of a laser beam could be changed by controlling the two-axis scanning galvanometer. At the same time, the silicon photocell array was also used as a charging device to realize real-time charging of MUAV. The experimental test results show that when the MUAV flies at a speed of less than 2m/s in a circular area with a height of 80m and a diameter of 50m, the system can accurately track the MUAV with a tracking accuracy of less than 0.63mrad. It has the characteristics of fast tracking speed and high aiming accuracy. This research provides an effective solution for laser remote real-time energy transmission to moving targets.