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Indoor positioning method for high-speed unmanned rotor craft

A technology for rotorcraft and indoor positioning, which is applied in the fields of navigation, positioning and communication, and can solve the problems that indoor positioning methods cannot be directly used, positioning accuracy signal strength measurement aircraft movement speed restrictions, etc.

Active Publication Date: 2014-11-19
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

[0005] However, the indoor positioning method based on WiFi cannot be directly applied to the high-speed moving unmanned rotorcraft, because the method requires the aircraft to stay in place for a period of time (about 1-2 seconds), during which the unmanned aerial vehicle may have left The original position, so the positioning accuracy is limited by the WiFi signal strength measurement and the speed of the aircraft's movement

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  • Indoor positioning method for high-speed unmanned rotor craft
  • Indoor positioning method for high-speed unmanned rotor craft
  • Indoor positioning method for high-speed unmanned rotor craft

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Embodiment Construction

[0060] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0061] figure 1 It is a flowchart of an indoor positioning method for high-speed unmanned rotorcraft provided by the present invention, figure 2 It is a system overall design structural diagram of the method of the present invention. This system uses the indoor positioning method designed for unmanned rotorcraft provided by the present invention. The system is mainly composed of three parts, namely: a positioning server, a router and an unmanned rotorcraft.

[0062] In the system, the positioni...

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Abstract

The invention discloses an indoor positioning method for a high-speed unmanned rotor craft. The indoor positioning method comprises the following steps: multiple wireless routers are mounted in an area providing a positioning service; the area is divided into grids, and WiFi signal intensity in every grid is measured; the WiFi signal intensity is continuously measured by the craft in fixed time intervals; the craft asks for positioning to a server and uploads measured data; the server calculates the position of the craft according to a measuring result, and sends the result to the craft; the craft receives the positioning result. The method can effectively improve the indoor positioning precision of the unmanned rotor craft moving at the high speed.

Description

technical field [0001] The invention relates to the technical fields of communication, navigation and positioning, and in particular to an indoor positioning method for high-speed unmanned rotorcraft. Background technique [0002] With the popularity of unmanned aerial vehicles, more and more navigation functions of unmanned aerial vehicles need to be supported by location information, which is the so-called location-based information service (LBS). Therefore, positioning technology has developed into a supporting key technology in the field of unmanned aerial vehicle navigation. Outdoors, UAVs can use GPS technology for positioning, but GPS technology has extremely low positioning accuracy indoors, thus limiting the use of UAV navigation indoors. With the popularity of unmanned rotorcraft in large indoor venues, the problem of indoor positioning of unmanned rotorcraft has become increasingly prominent, and there is no mature commercial solution. [0003] Since the beginni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00
Inventor 于拓周子龙张阳张哲慧吴炜捷杨峰王新兵
Owner SHANGHAI JIAO TONG UNIV
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