45results about How to "Improve landing safety" patented technology

The invention relates to a flight equipment landing method and a flight equipment landing device, and belongs to the field of internet. The flight equipment landing method comprises the steps of receiving the battery remaining capacity and location information of flight equipment, wherein the location information of the flight equipment is acquired under a safe landing mode which is activated after the flight equipment determines that the battery remaining capacity is less than a set threshold; judging whether the flight equipment can safely land at a position where a control terminal is currently located or not based on the battery remaining capacity and the location information of the flight equipment; determining a target falling site of the flight equipment based on the location information of the flight equipment when the flight equipment cannot safely land the position where the control terminal is currently located; and sending the target falling site to the flight equipment, and enabling the flight equipment to land. The embodiment of the invention prevents a circumstance that the flight equipment is damaged by falling caused by low electric quantity, and the landing safety of the flight equipment in a circumstance of low electric quantity is improved.

The small unmanned aerial vehicle landing gear buffer relates to the field of aviation aircraft, and solves the problems that the existing flat spring type buffer has low buffering efficiency, is easy to rebound, and cannot meet the high reliability requirements of the unmanned aerial vehicle. Including the outer cylinder, the first spring on the outer cylinder, the inner cylinder with a damping hole, the air bag between the outer cylinder and the inner cylinder, the upper joint, the lower joint, the piston rod extending into the inner cylinder, and the piston rod which is set on the piston rod in turn. Piston, damping plate, pressure limiting valve, one-way valve, guide sleeve and locking cover which are set on the piston rod and located inside the outer cylinder in turn; between the inner cylinder and the outer cylinder is the inner and outer cylinder ring-shaped oil storage chamber, and the damping plate along the piston The rod moves axially, and the pressure limiting valve limits the maximum damping force in the compression stroke to not exceed the preset value. After tightening the locking cap, the guide sleeve, one-way valve, and inner cylinder are axially compressed to the lower joint, and the one-way valve controls the inner and outer Whether the annular oil storage chamber of the barrel communicates with the right cavity of the inner barrel or not, the two ends of the first spring bear against the lower and upper joints respectively. The invention has high buffering efficiency, is not easy to rebound, has stable performance and high reliability.

The invention discloses unmanned aerial vehicle airport-entering landing gliding channel design and a gliding path adjustment method, and belongs to the technical field of flying control. A gliding channel satisfying landing conditions is planned according to pneumatic characteristics of an aerial vehicle and engine characteristics of the aerial vehicle; then reasonable horizontal flying height and reasonable airport-entering gliding distance of the aerial vehicle are confirmed according to field conditions of an airport and actual requirements of the airport, wherein flight path inclined angles of an airport-entering landing balanced gliding segment of the aerial vehicle are changed so as to adjust the gliding distance and flight path inclined angles and effectively avoid effect of barriers on airport-entering landing of the aerial vehicle; and finally, changing curves of parameters along the path such as dynamic pressure, velocities, angles of attack and elevator drift angles of the aerial vehicle are acquired through a path continuation mode so as to achieve safety landing of the aerial vehicle. The adjustment method is suitable for an adjustment method of general five-side navigation path horizontal flying height and gliding distance, is more suitable for situations that landing is affected by the barriers, and improves landing safety. The unmanned aerial vehicle airport-entering landing gliding channel design and the gliding path adjustment method are simple in design and adjustment process and convenient to use.