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GNSS and UWB fused enhanced unmanned aerial vehicle (UAV)positioning method and system

A technology that enhances positioning and unmanned aerial vehicles, applied in satellite radio beacon positioning systems, radio wave measurement systems, instruments, etc., can solve the problems of difficult positioning and navigation operations of unmanned aerial vehicles, and achieve the effect of convenient use

Active Publication Date: 2018-09-04
SHENZHEN UNIV
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a UAV enhanced positioning method and system that integrates GNSS and UWB in view of the above-mentioned defects of the prior art, aiming at solving the problem that UAVs in the prior art are difficult to carry out in complex environments. The problem of precise positioning and navigation operations

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  • GNSS and UWB fused enhanced unmanned aerial vehicle (UAV)positioning method and system
  • GNSS and UWB fused enhanced unmanned aerial vehicle (UAV)positioning method and system
  • GNSS and UWB fused enhanced unmanned aerial vehicle (UAV)positioning method and system

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[0043] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0044] In the prior art, when the UAV is performing navigation operations outdoors, satellite signals are easily blocked by buildings, resulting in insufficient number of received GNSS observation satellites, making it impossible for the UAV to perform positioning. In order to solve the above problems, the present invention provides a UAV enhanced positioning method that integrates GNSS and UWB, such as figure 1 as shown, figure 1 It is a flow chart of a preferred embodiment of the UAV enhanced positioning method fused with GNSS and UWB of the present invention. The unmanned aerial veh...

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Abstract

The invention discloses a GNSS and UWB fused enhanced UAV positioning method and system. The method comprises that a pseudo base station UAV and a moving station UAV are arranged in advance; the moving station detects the number of GNSS satellite signals at present, and compares the number with a threshold; when the number of satellite signals is greater than the threshold, the moving station UAVuses a GNSS positioning module to receive positioning information from a reference station, and carries out real-time coordinate difference resolution; and when the number of the satellite signals islower than the threshold, the moving station UAV uses a UWB positioning module, and solves a real-time coordinate via UWB range finding and receiving positioning information from the pseudo base station UAV. The UAV is positioned in the complex environment by fusing GNSS with UWB technologies, when the satellite signals are influenced, the UAV uses UWB for positioning automatically, and influenceon UAV positioning and navigation when the satellite signals are interfered is overcome.

Description

technical field [0001] The invention relates to the technical field of outdoor positioning, in particular to a UAV enhanced positioning method and system that integrates GNSS and UWB. Background technique [0002] Currently, GNSS (Global Navigation Satellite System, Global Navigation Satellite System) and UWB (Ultra-Wideband, ultra-wideband) are widely used in the field of positioning technology. [0003] UAVs can use GNSS to obtain high-precision positioning and navigation results in a good outdoor observation environment, but satellite signals are easily blocked by buildings, resulting in insufficient number of observation satellites received, making it impossible for UAVs to operate in such a complex environment. It is inconvenient for users to carry out related positioning and navigation operations in the environment. [0004] Therefore, the prior art still needs to be improved and developed. Contents of the invention [0005] The technical problem to be solved by th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/48
CPCG01S19/48
Inventor 朱家松林伟东刘炎炎
Owner SHENZHEN UNIV
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