A vertical take-off and landing unmanned aerial vehicle and its precise positioning and obstacle avoidance method

Abstract

The present invention belongs to the technical field of UAVs, in particular to a VTOL UAV stream comprising a rotor having a body, the front left portion and the right front body portions is provided with a front directional bias UAV under the camera, two cameras and a strong pitch is constant parallel to the optical light source cooperates, the camera may be equipped with the consignee modulated optical signal; disposed in front of said photosensor body; and around the upper and lower body a distance sensor is provided; UAVs radio communication with the server through a mobile communication network. UAV and provides accurate positioning and obstacle avoidance method, in particular for VTOL UAV can autonomously obstacle avoidance, which work accurately and safely.

Description

technical field [0001] The invention belongs to the technical field of unmanned aerial vehicles, in particular to a vertical take-off and landing unmanned aerial vehicle used for logistics and its precise positioning and obstacle avoidance methods. Background technique [0002] In some remote areas, the revenue brought by the express mail is difficult to cover the funds consumed in the construction and maintenance of outlets, which is the current consensus in the logistics industry. The use of "drones" for delivery can effectively improve distribution efficiency and reduce manpower and transportation costs. Especially vertical take-off and landing (VTOL, Vertical Take-Off and Landing) unmanned aerial vehicles can meet the express delivery business and The actual needs of the logistics business for small express delivery distribution points. Therefore, the application of vertical take-off and landing drones to logistics distribution is a good development direction of the log...

AI Technical Summary

Problems solved by technology

The satellite positioning accuracy usually cannot meet this requirement: the use of differential positioning system will cause the cost of the terminal to increase hundreds of times, and due to the reflection of positioning signals, the positioning effect cannot be guaranteed in cities with many tall buildings; the use of conventional satellite positioning will lead to positioning Insufficient accuracy (the ideal state is usually 2m accuracy), and in places with many tall buildings, the positioning accuracy will further decrease due to the reflection of satellite signals by tall buildings

Limited by the above circumstances, in order to ensure the safety of the UAV logistics business, the delivery location of its goods can only be an open area, and the sign-in operation cannot be performed, which cannot solve the "last ten meters" problem of UAV logistics. Increased the difficulty of receiving goods, which greatly reduced the practicability of logistics drones

In addition, since the location of the consignee is not fixed and the environment is different, it is necessary to accurately locate the consignee and avoid nearby obstacles during the complete logistics process, which cannot be achieved by using satellite positioning. meet the requirement

Images