Method for selecting taking-off and landing point for fixed-wing unmanned aerial vehicle in urban area

Abstract

The invention provides a selecting system. The selecting system comprises a database module and further comprises a measuring area range determining module, a site investigation module, a data processing module and a correction prompting module which are connected with each other in sequence. A method for selecting a taking-off and landing point for a fixed-wing unmanned aerial vehicle in an urbanarea comprises the steps of setting a height difference L of an unmanned aerial vehicle taking-off and landing point, pre-selecting a taking-off and landing area and selecting the taking-off and landing area in an optimized manner, determining the taking-off and landing point and implementing correction. According to the selecting system, real-time performance and high efficiency are realized, the accuracy is high, and the control degree is good; the optimized selection of the taking-off and landing point in the urban environment is rapidly realized according to a selection principle so thatthe aerial survey accuracy of the fixed-wing unmanned aerial vehicle is greatly improved; as the precondition that the unmanned aerial vehicle flies forwards for 10-20 m more during landing when the height difference of the taking-off and landing point is increased by 1 m every time is taken into consideration, and the correction step of preventing the unmanned aerial vehicle from being biased from a preset landing point is set, the taking-off and landing error is greatly reduced, the safety taking-off and landing of the unmanned aerial vehicle are guaranteed, the aerial survey cost of the unmanned aerial vehicle is greatly reduced, the workload is reduced, and the selecting system is more suitable for being popularized.

Description

technical field [0001] The invention belongs to the field of unmanned aerial vehicle aerial survey technology, and relates to the take-off and landing technology of fixed-wing unmanned aerial vehicles, and more specifically, relates to a method for selecting take-off and landing points in urban areas of fixed-wing unmanned aerial vehicles. Background technique [0002] As we all know, fixed-wing UAVs have a wide range of aerial surveys, high speed, and high efficiency. Harsh. Trimble UX5 UAV needs a flat land with a length of at least 50 meters and a width of 30 meters. It is best to choose a field that is open, relatively soft and free of hard objects such as stones, and try to avoid hard landing on cement roads. When performing surveying and mapping tasks, it is inevitable to encounter more complex terrain conditions, and it is impossible to find a large area of ​​open space, which is extremely unfavorable for the safe landing of drones. In urban areas, high-rise buildin...

AI Technical Summary

Problems solved by technology

The selection of take-off and landing points takes a lot of time, resulting in a waste of manpower and material resources

In addition, the existing methods for selecting take-off and landing points in urban areas for drones are all aimed at the ideal urban environment, and there is no special detailed classification of the urban environment, and there are no measures to deal with the impact of sudden weather conditions; the most important Yes, the existing methods for selecting take-off and landing points in urban areas for UAVs do not have special aerial survey correction measures, and UAVs tend to deviate from the scheduled landing points, and cannot perform safe take-off and landing in urban areas very well and accurately.

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