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Indoor positioning method based on UWB technology

An indoor positioning and technology technology, applied in the field of positioning based on UWB technology, can solve problems such as communication collisions, affecting positioning accuracy, and affecting data reception, and achieve the effects of ensuring positioning accuracy, reducing the probability of communication collisions, and shortening the allocation time

Active Publication Date: 2019-09-10
GUODIAN LONGYUAN ELECTRICAL +1
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] However, the use of UWB technology requires high-precision positioning of tags. If there are too many tags that cause communication collisions, it will not only affect data reception, but also affect positioning accuracy.

Method used

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  • Indoor positioning method based on UWB technology
  • Indoor positioning method based on UWB technology
  • Indoor positioning method based on UWB technology

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Embodiment Construction

[0039] Various aspects and features of the present application are described herein with reference to the accompanying drawings.

[0040] It should be understood that various modifications may be made to the embodiments applied for herein. Accordingly, the above description should not be viewed as limiting, but only as exemplifications of embodiments. Those skilled in the art will envision other modifications within the scope and spirit of the application.

[0041] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and, together with the general description of the application given above and the detailed description of the embodiments given below, serve to explain the embodiments of the application. principle.

[0042] These and other characteristics of the present application will become apparent from the following description of preferred forms of embodiment given as non-limiting examp...

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Abstract

The invention provides an indoor positioning method based on a UWB technology, and mainly solves the problem of communication collision of UWB multi-positioning tags in the prior art. According to thepositioning method, a time division multiplexing technology is adopted in a time domain, time slots of positioning tags are managed and distributed in a unified mode by setting reference base stations, time slot occupation conditions are marked by adopting a bitmap algorithm, and idle time slots are quickly found; a corresponding relation between the positioning tag and the use time slot is recorded by adopting red-black tree index; and the time slot is recovered by adopting the longest non-use elimination algorithm. According to the method, the time slot searching and distribution of the positioning base station end are optimized, the time slot distribution time is shortened to the maximum extent, the probability of communication collision can be effectively reduced, the positioning precision is ensured, and the requirements of different positioning modes can be met.

Description

technical field [0001] The invention relates to the field of wireless communication and positioning systems, in particular to a positioning method based on UWB technology. Background technique [0002] UWB is a carrier-free communication technology that uses nanosecond to picosecond-level non-sinusoidal narrow pulses to transmit data. By transmitting extremely low-power signals over a wide frequency spectrum, UWB can achieve data transmission rates from hundreds of Mbit / s to several Gbit / s within a range of about 10 meters. It has strong anti-interference performance, high transmission rate, large system capacity and very small transmission power. The communication device can realize the communication with the transmission power less than 1mW. Its electromagnetic radiation has little impact on the human body and has a wide range of applications. Especially in the field of indoor personnel positioning, this technology is widely used and is one of the most promising indoor ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/021H04W4/33H04W72/04
CPCH04W4/021H04W72/0446H04W4/33
Inventor 田雨聪梁金秀石自辉董俊法朱峰陈洁尹振豫吴刚厉磊
Owner GUODIAN LONGYUAN ELECTRICAL
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