Nowadays, the rapid development of UAVS has a great application prospect both in military and civilian areas. However, the short duration of the UAV has limited the continuity of its work , and it need someone to replace the battery. We propose a UAV autonomous charging method of the multi-information co-location, when the unmanned aerial electricity is low enough to automatically find the charging point of charge, fully charged to automatically return to the original workplace to perform the task, truly achieve all-weather work independently.
IntroductionThe Unmanned Aerial Vehicle (UAV) is an aircraft that is controlled by a radio real-time remote control or a program stored in advance by itself, carries a variety of functional equipment, and has the ability to perform various tasks, because of its simple structure and size. Small, low cost, high survival rate, flexible use, strong adaptability, zero casualties and many other advantages, it is widely used in various fields. However, due to the limitation of battery technology and traditional charging technology, the development of UAV's battery life, flexibility, and convenience has been limited. How to supply electric energy for drones flexibly and conveniently becomes the development of UAVs. An important direction of development and issues that need to be solved in the process.This system aims to improve the problem of unsustainable drone life, by identifying the ground charging station for autonomous charging, to complete the long-term operation requirements, the entire link autonomously completed. This design can specifically achieve the following two functions:Through GPS, barometer, image processing, and multi-information coordination of the mechanical structure, the drone completes coarse positioning from a large range to millimeter-level accurate positioning in a small range, and Landing to the ground station autonomously;Using the ground station to complete intelligent charge management, including detection of landing, communication with the drone, start of charging, docking of the charging port, and end of charging.
The construction of hardware platformThe system is mainly composed of three parts: four-axis aircraft, DSP, ground station, including four-axis aircraft including flight control, GPS module, ultrasonic module, head, camera, etc., ground station includes landing base station, STM32, photoelectric control, step into the motor, relays, lead-acid batteries, solar panels, etc., the overall system structure and function as shown.
