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An Indoor Wireless Positioning Method Based on Path Matching

An indoor wireless and positioning method technology, applied in the field of positioning, to achieve the effect of simple positioning method and wide application

Active Publication Date: 2017-09-26
STATE GRID CORP OF CHINA +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of high precision and anti-interference in indoor wireless positioning, it is necessary to start from the application requirements. This invention proposes an indoor wireless positioning method based on path matching, which is used for the precise positioning of indoor workers or robots, and tracks the moving path. And match, send out an alarm when people or robots stray into dangerous areas, especially suitable for the requirements of power equipment inspection on positioning accuracy and anti-interference

Method used

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  • An Indoor Wireless Positioning Method Based on Path Matching
  • An Indoor Wireless Positioning Method Based on Path Matching
  • An Indoor Wireless Positioning Method Based on Path Matching

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Embodiment Construction

[0038] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0039] Such as figure 1 with image 3 , the present invention provides a method for indoor wireless positioning based on path matching, the method includes the following steps:

[0040] Step 1: Predefine the moving path;

[0041] Step 2: Track the moving path;

[0042] Step 3: Match the moving path;

[0043] Step 4: Correct the system error to obtain the final indoor positioning result.

[0044] In the step 1, the mobile path of the wireless positioning terminal is predefined according to the indoor building pattern, equipment layout and work requirements; there are:

[0045]

[0046] Among them, R(x, y) represents the moving path of the wireless positioning terminal, such as figure 2 , according to the needs of actual maintenance operations, the moving path is composed of n consecutive straight line segments, r i Indicates the 1st to nth straight-li...

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Abstract

The invention provides an indoor wireless positioning method based on path matching. The indoor wireless positioning method based on path matching comprises the following steps that a movable path is pre-defined; the movable path is tracked; the movable path is matched; system errors are corrected to obtain the final indoor positioning result. The indoor wireless positioning method based on path matching achieves high accuracy and interference resistance of indoor wireless positioning, is used for accurately positioning an indoor worker or a robot, tracking and matching the movable route and warning the worker or the robot when the worker or the robot enters a dangerous area by mistake, and particularly meets the requirements for positioning accuracy and interference resistance of power equipment inspection.

Description

technical field [0001] The invention relates to a positioning method, in particular to a method for precise wireless positioning of a person or robot moving along a fixed path within an indoor local area. Background technique [0002] Precise guidance and positioning in industrial operating environments and equipment maintenance operations can effectively prevent workers from straying into dangerous areas and ensure personal safety. At present, the main positioning technology is based on GPS and Beidou satellite positioning, but satellite positioning is greatly affected by the environment where the terminal is located. When the user is indoors or underground, the positioning accuracy will be greatly reduced, or even the positioning cannot be completed. Ultra-wideband wireless (UWB) technology is an indoor high-precision wireless positioning technology proposed in recent years. It has a time resolution capability of up to nanoseconds. Combined with a ranging algorithm based o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/04H04W64/00
Inventor 梁云刘世栋曾鹏飞朱亮郭云飞王瑶郭经红缪巍巍
Owner STATE GRID CORP OF CHINA
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