1. Introduction With the development and application of UAV-related technologies, UAV equipment has attracted widespread attention, and its advantages are becoming more and more prominent, but there are also corresponding problems, among which poor endurance seriously restricts the improvement of UAV's working ability and efficiency. At present, the duration of drones on the market is almost 30 minutes, which to a certain extent limits the application of drones in professional fields. With the unmanned operation, the manual replacement of the battery of the UAV seriously hinders the comprehensive unmanned development. Aiming at the common problems existing in small and medium-sized unmanned aerial vehicles at this stage-poor endurance, artificial battery replacement, and the need for personnel to be on duty for takeoff and landing, this paper designs a fully automatic battery charging and changing warehouse for unmanned aerial vehicles. The platform dynamically identifies unmanned aerial vehicles and all-round correction movement in small areas based on the unmanned aerial vehicle landing error micro-correction motion system, visual positioning system, battery replacement system and ring control system to realize accurate docking with unmanned aerial vehicles, and through the tolerance mechanical clamping device, the battery of the UAV is replaced, so as to realize the long endurance of the UAV. This project will carry out the application design of fully automatic unmanned aerial vehicle battery charging and changing warehouse for highway monitoring. At the same time, it can also serve the unmanned operation of agricultural unmanned aerial vehicles, and it can also provide midpoint station services for unmanned aerial vehicles that need long-distance work in other fields, such as environmental monitoring, power inspection, atmospheric detection, remote sensing mapping and other fields. The regional network layout realizes unmanned and intelligent service for unmanned aerial vehicles, which can not only save human and material resources, it can also improve the utilization rate of drones in professional departments. Starting from the UAV battery replacement, this project designs a convenient, new, practical and economical fully automatic UAV battery charging and changing warehouse. The platform can realize the function of fully automatic battery replacement, and can carry the battery to charge directly to ensure the continuous work of battery replacement. The platform carrying system is easy to develop at the third end, and can be customized in Labview, WeChat applet, Java, etc. At the same time, the cost of this product is low, the single process time is 3 times shorter than the existing products in the market, and the docking accuracy is 10mm. This docking method can also be applied to other automation equipment docking field. In view of the many advantages of this device, this device is now intended for highway inspection. Provide starting storage for road inspection drones and serve as a battery replacement transfer station. It can also facilitate the use of private small-scale UAVs, and is more suitable for the use of UAVs in professional fields such as environmental monitoring, power inspection, disaster search and rescue, atmospheric exploration, remote sensing and mapping. The layout of the machine nest matrix can enable the UAV to achieve long endurance and lay a solid foundation for the full automation of UAV operations. 2. Innovation points 1. identification and correction, precise positioning and landing design Due to the influence of instruments and wind speed, the accuracy of UAV landing can not meet the docking requirements, so the deviation correction design uses omni-directional and multi-angle movement to make up for the defects of low landing accuracy. In more than 200 landing tests, the success rate of landing at the effective position of the platform is as high as 94%. To achieve the leading level of UAV precision landing related fields. Design of 2. Tolerance Pushing Bin Docking Mechanism The tolerance push bin design can ensure that the clamping mechanism accurately grasps the aircraft battery and eliminate the problem of grasping battery failure caused by the deviation of the drone position. In the 198 tests, the number of successful battery replacement work was as high as 195, ensuring the service of unmanned UAV battery replacement and providing technical support for improving the endurance of UAV. Design of 3. connected battery compartment The design of the three-dimensional battery compartment realizes the rapid replacement of the UAV battery based on the principle of "fast, simple and energy saving. In the 50 speed tests, the average time spent remained within 45 seconds. 3. Novelty and practicality 1. Novelty Aspects: The team has effectively solved many problems existing in the UAV take-off and landing platform on the market by supplementing defects, optimizing experience and improving structure. In terms of function, it meets the needs of all aspects, realizes the functions of one-key start and independent battery replacement, and makes the process simple, fast and stable in structure. In terms of 2. practicality, the UAV take-off and landing platform mainly has the following advantages: Immediacy: When unmanned aerial vehicles are required to participate in the operation near the installation site of the platform, the platform can be started in time through remote control and the unmanned aerial vehicles can be operated in time to participate in the operation. Automaticity: The platform can not only automatically replace the UAV battery, but also realize the one-button take-off of the UAV, further optimizing the use in the operation process. Stability: The platform can not only ensure that the UAV is in the best condition at any time, but also ensure that the UAV can be used as a transfer station for state adjustment and resource supplement.