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A synchronization method and synchronization system for a uwb positioning system

A technology of positioning system and synchronization system, applied in the direction of synchronization device, wireless communication, electrical components, etc., to achieve the effect of reducing cost and simple synchronization method

Active Publication Date: 2019-08-16
SHENZHEN YIRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, synchronization routing is also a problem, involving the strategy of optimal synchronization delivery, to minimize the number of synchronizations, and to minimize the accumulation of errors and other issues

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  • A synchronization method and synchronization system for a uwb positioning system
  • A synchronization method and synchronization system for a uwb positioning system
  • A synchronization method and synchronization system for a uwb positioning system

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Embodiment Construction

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0030] The UWB positioning system in the present invention needs to realize two-dimensional positioning, so the minimum unit is 3 base stations. In order to ensure the positioning effect, in practice, the signal of one base station can be received by at least two other base stations. In addition, the XY (and Z, if not equal height) coordinates of all base stations are known at the time of base station setup.

[0031] Based on the above-mentioned UWB positioning system, the present invention uses an extremely simple synchronization method to synchronize all base stations in the network. Compared with the pairwise synchronization in the existing wireless synchronization, this method does not need to estimate the signal processing time and does not need to consider the routing strategy.

[0032] The synchronous method of the present invention c...

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Abstract

The invention provides a UWB positioning system synchronization method and synchronization system, belonging to the technical field of UWB technology application. The method includes selecting one of the base stations to transmit a UWB synchronization signal to other base stations covered by the signal of the selected base station; recording the time stamps uploaded by other base stations; calculating the correction factor between the other base stations according to the time difference of the UWB synchronization signal reaching the other base stations and the uploaded time stamps; according to the correction factor, obtaining the flight time difference between the other base stations and completing the synchronization of the other base stations covered by the base station transmitting the UWB synchronization signal; and selecting a base station different from the previous base station transmitting the UWB synchronization signal to transmit the UWB synchronization signal to other base stations covered by the signal of the selected base station. The UWB positioning system synchronization method and synchronization system are free of a synchronising controller and a high-precision transmission line, and reduce the cost; and compared with the wireless synchronization method in the prior art, the method provided is very concise.

Description

technical field [0001] The invention relates to the application field of UWB technology, in particular to a synchronization method of a UWB positioning system, and also to a synchronization system for realizing the synchronization method. Background technique [0002] UWB (Ultra Wideband, a carrierless communication technology) positioning system synchronization generally has two forms, wired synchronization and wireless synchronization. [0003] Wired synchronization is based on a transmission line with a specific electrical length, using high-precision pulse signals, or high-frequency sine waves with sudden phase loss, phase reversal, or similar high-precision signals for synchronization. This method needs to connect the positioning base stations of the entire system with transmission lines, and strictly make the length of the transmission lines. All base stations are controlled by a unified synchronization controller. This method of networking is inflexible, the synchro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W56/00
CPCH04W56/0005H04W56/001
Inventor 翁凯利陈新科文智力徐跃福
Owner SHENZHEN YIRI TECH