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A tag positioning method and device based on ultra-wideband

A positioning method and ultra-wideband technology, applied in the field of ultra-wideband-based tag positioning methods and devices, can solve problems such as long positioning time, inability of tags to be positioned to receive base station scheduling information, and failure of tag positioning

Active Publication Date: 2021-04-20
RUIJIE NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Among them, step (1)-step (3) is called the label exploration stage, this process lasts about 6*2ms, and the process of step (4)-step (6) lasts 0.5*6ms, because each round of label positioning It needs to be executed from step (1) to step (7), so a positioning of the tag needs 6*2+0.5*6=15ms, and the positioning time is relatively long; moreover, if the Ranging Init message is lost during transmission, the tag to be positioned cannot Received base station scheduling information, resulting in label positioning failure

Method used

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  • A tag positioning method and device based on ultra-wideband
  • A tag positioning method and device based on ultra-wideband
  • A tag positioning method and device based on ultra-wideband

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Embodiment Construction

[0101] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of them. Based on the embodiments of the present application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present application.

[0102] The ultra-wideband UWB positioning system can include tags, base stations, servers, such as figure 2 shown.

[0103] Tags are positioned devices in UWB positioning systems that can be mobile. Tags can be badges, wristbands, devices attached to hard hats, etc. Tags can emit radio frequency signals, namely UWB ultra-wideband signals. The tag may include a power module, a motion sensor, a Microcontroller Unit (Microcontroller Unit, MCU) module,...

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PUM

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Abstract

The present application discloses a UWB-based tag positioning method and device. In the method, the tag to be positioned detects whether to store the scheduling information of the first base station, and the scheduling information of the first base station includes the base station identification and the corresponding positioning time slot of at least three positioning base stations; The base station of the message uploads the polling message to the server; receives the first response message sent by the corresponding positioning base station according to the base station identification of at least three positioning base stations and includes the scheduling information of the second base station required for the next positioning; sends the first base station The scheduling information is updated to the scheduling information of the second base station, and the stop message is broadcast according to the first response message sent by at least three positioning base stations, so that at least three positioning base stations will stop the message, each positioning base station and its own label. The distance value and the current base station information of the corresponding positioning base station are uploaded to the server. The method shortens the delay of label scheduling and improves the success rate of label positioning.

Description

technical field [0001] The present application relates to the technical field of positioning, and in particular to an ultra-wideband-based tag positioning method and device. Background technique [0002] Ultra Wideband (UWB) is a carrier-free communication technology that uses nanosecond to microsecond non-sinusoidal narrow pulses to transmit data. Because the UWB signal itself has low power consumption, high security, and multipath resolution capabilities In recent years, UWB has been used for high-precision positioning at home and abroad. [0003] The UWB positioning system may include at least one tag, at least one base station and a server. In the current UWB positioning system, the positioning tag requires at least 7 stages, such as figure 1 Shown: [0004] (1) The tag to be located broadcasts Blink messages at a fixed frequency. [0005] (2) After each base station receives the Blink message, it sends scheduling reference information to the server. The scheduling r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/02H04W4/06
CPCH04W4/023H04W4/025H04W4/06
Inventor 丁晟
Owner RUIJIE NETWORKS CO LTD