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Ultra-wideband based indoor emergent positioning method

A positioning method and ultra-wideband technology, applied in positioning, measuring devices, instruments, etc., to achieve the effect of avoiding indoor environmental interference, satisfying randomness, and ensuring indoor positioning accuracy

Inactive Publication Date: 2015-06-10
梁二
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, none of the above technologies can fully meet these requirements.

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Embodiment Construction

[0033] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments. But those skilled in the art should know that the following examples are not the sole limitation to the technical solution of the present invention, and any equivalent transformation or modification made under the spirit of the technical solution of the present invention should be considered as belonging to the protection of the present invention scope.

[0034] refer to figure 1 , the implementation steps taken by the positioning method of the present invention are:

[0035] 1) First, install an ultra-broadband ranging processor on the inner toes and heels of the left and right feet, named respectively as the left toe A processor, the left heel B processor, the right toe C processor, and the right heel D processor. This ultra-wideband processor is actually to place a multi-distance and multi-directional distance sensor on the heel and toe of the left...

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Abstract

The invention provides an ultra-wideband based indoor emergent positioning method. The method is that ultra-wideband processors are respectively positioned at inside heels and tiptoes of the left and right feet; the B processor is used for continuously calculating the distance of BC and BD; the D processor is used for continuously calculating the distance of AD and BD; the initial B point coordinate (x0, y0) of the left foot is known, the distance of the AB, AD and BD sides of the right foot are known, and then the D point coordinate (x1, y1) of the right foot can be calculated; the distance of the CD, BC and BD of the left foot is known, and thus the distance of the point B can be calculated by the same way. The feet continuously alternatively move forwards, and then the location of the people can be continuously tracked. With the adoption of the method, the problems of indoor positioning navigation magnetic interference and magnetic deviation problem and the displacement error of in-situ vibration based on the stepping principle can be avoided; the final indoor positioning precision can be basically ensured, and the terrible indoor environmental interference problem can be avoided.

Description

technical field [0001] The present invention relates to indoor positioning technology, in particular to an indoor emergency positioning method based on Ultra Wide Band (UWB). Background technique [0002] In recent years, indoor positioning technology and location-based applications have become a research hotspot. The existing indoor positioning technology research is basically divided into three directions: one is base station positioning, mainly using WIFI, ZIGBEE, NFC, RFID, ultra-wideband, Bluetooth, infrared, ultrasonic and other technologies to achieve triangulation positioning principles; the other is geomagnetic inertial navigation Positioning, mainly using geomagnetic sensors to calculate displacement using the principle of direction, acceleration and gyro comprehensive step counting, and using air pressure and temperature to calculate height for three-dimensional positioning; the other is to use beacon positioning, mainly using a beacon for each distance It is use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/02
CPCG01S5/02
Inventor 梁二
Owner 梁二