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Method for calculating distance between base station and label under non-visual condition and related component thereof

A distance and base station technology, which is applied in the field of calculating the distance between the base station and the tag under non-visual conditions, can solve the problems of reduced positioning accuracy, strong multi-channel signal interference, low slew rate, etc., and achieve the effect of precise distance and avoiding interference

Active Publication Date: 2021-06-11
深圳大漠大智控技术有限公司
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Problems solved by technology

[0003] The embodiment of the present invention provides a method and related components for calculating the distance between a base station and a tag under non-visual conditions, aiming at solving the problem of UWB ultra-wideband technology in the prior art due to low slew rate and strong multi-pass Signal interference, leading to the problem of lower positioning accuracy

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  • Method for calculating distance between base station and label under non-visual condition and related component thereof
  • Method for calculating distance between base station and label under non-visual condition and related component thereof
  • Method for calculating distance between base station and label under non-visual condition and related component thereof

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[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and / or collections thereof.

[0023] It should also be understood that the terminology used ...

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Abstract

The invention discloses a method for calculating a distance between a base station and a label under a non-visual condition and a related component thereof. The method comprises the following steps: carrying out discrete processing on a multipath analog signal to obtain a discrete digital signal, inputting the discrete digital signal into an average window function for calculation, and respectively inputting a calculation result into a first window filter and a second window filter for filtering processing to obtain a first window function signal and a second window function signal; calculating the slew rate of the UWB channel model, obtaining the interval time standard deviation of the pulse signal of the UWB channel model, and judging whether the multipath analog signal is a non-visual signal or not according to the slew rate and the interval time standard deviation; and if so, calculating the distance between the positioning base station and the positioning label by taking a second window function signal output by the second window filter as a front edge signal. According to the method, the non-visual signals are detected at the low slew rate, interference of strong multi-channel signals on front edge signals is avoided, and therefore the distance between the positioning base station and the positioning label can be calculated more accurately.

Description

technical field [0001] The invention relates to the technical field of indoor ranging, in particular to a method for calculating the distance between a base station and a tag under non-visual conditions and related components thereof. Background technique [0002] Global navigation satellite systems such as GPS, GLONASS, Beidou, etc. have been used as the default outdoor positioning system for a long time. In recent years, with the rapid development of the Internet of Things and the increasing popularity of smartphones, the demand for indoor positioning systems has been increasing. At present, many indoor positioning systems have been developed, such as RFID, Bluetooth low energy technology (BLE), Wi-Fi technology, and UWB ultra-wideband technology based on transmitting short pulse signals based on the received radio frequency signal strength to convert back to distance information . UWB ultra-wideband technology is widely used in indoor positioning due to its strong anti-...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/02H04W4/33G01S11/08
CPCH04W4/02H04W4/33G01S11/08
Inventor 程煜王辰熙罗品
Owner 深圳大漠大智控技术有限公司
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