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Seamless positioning method and device

A technology of seamless positioning and positioning methods, applied in satellite radio beacon positioning systems, measurement devices, radio wave measurement systems, etc., can solve problems such as difficult to meet the needs of arbitrary switching of positioning scenarios

Inactive Publication Date: 2013-11-06
SHANGHAI BEIGA NAVIGATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] In summary, relying solely on navigation satellite signals or a certain indoor positioning signal, it is difficult to meet the needs of arbitrary switching between indoor / outdoor positioning scenarios; moreover, in some short-term positioning blind spots, no radio signal can play a role Sometimes, self-positioning means are often needed to assist in order to realize the transition splicing of the positioning process

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  • Seamless positioning method and device

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Embodiment Construction

[0057] The embodiment of the present application provides a seamless positioning technology and device, which effectively integrates RTD technology positioning suitable for outdoor positioning, UWB technology positioning suitable for indoor positioning, and MEMS technology positioning suitable for assisted positioning, so that In any application scenario, obtain high-precision position, speed, attitude and other parameters that users care about in real time.

[0058] The above is the core idea of ​​the present application, in order to enable those skilled in the art to better understand the solution of the present application. The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodimen...

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Abstract

The invention discloses a seamless positioning method, which comprises the steps of: selecting an RTD (Real-time Dynamic) positioning technology to perform positioning if a satellite signal meets the preset requirement when a ground-based augmentation system GNSS (Global Navigation Satellite System) receives the satellite signal, or else, selecting an MEMS (Microelectromechanical Systems) positioning technology to perform positioning; selecting a UWB (Ultra Wideband) positioning technology to perform positioning if the UWB positioning technology can be used when the ground-based augmentation system GNSS cannot receives a satellite signal, or else, selecting the MEMS positioning technology to perform positioning; and inputting positioning data into a Kalman Filter to carry out data fusion calculation so as to obtain accurate positioning information. According the seamless positioning method disclosed by the invention, the RTD positioning technology, the UWB positioning technology and the MEMS-based inertial navigation technology are comprehensively utilized to be effectively integrated and combined; and a proper positioning method is effectively selected according to the intensity of satellite signals, arbitrary switching between indoor positioning and outdoor positioning is performed, and auxiliary positioning of seamless positioning can be realized in case of a blind zone where positioning cannot be carried out.

Description

technical field [0001] The present application relates to the field of spatial positioning, in particular to a method and device for dynamically adjusting authority items based on a seamless positioning method integrated with UWB, RTD, and MEMS. Background technique [0002] The premise of the realization of high-precision seamless positioning technology is to make full use of widely existing radio signals such as GNSS, Wi-Fi, UWB, etc. in environments and occasions with / without navigation satellite signals, and to use MEMS-based inertial devices to provide Velocity, acceleration, attitude and other information are used as an auxiliary, and fusion processing is performed on the above, so that in any application scenario, high-precision position, velocity, attitude and other parameters that users care about can be obtained in real time; existing positioning technologies are mainly divided into the following Several categories: [0003] 1) Outdoor positioning (GNSS-RTD) techn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/38G01S19/53G01S19/52G01C21/16
Inventor 刘峻宁胡华钱华刘壮余超
Owner SHANGHAI BEIGA NAVIGATION TECH CO LTD