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Indoor electronic map generating method and system, and indoor target positioning method and system

A technology of map generation and internal electronics, applied to radio wave measurement systems, positioning, electrical components, etc., can solve problems such as large attenuation, difficulties in precise positioning of people and objects, and GPS receivers cannot receive satellite signals, so as to improve accuracy degree, the effect of reducing the impact of

Inactive Publication Date: 2013-07-31
IBM CORP
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Problems solved by technology

However, the indoor environment is a complex environment. The signal is affected by the walls of people and objects in the room during the propagation process, and the attenuation is relatively large, which brings difficulties to the precise positioning of people and objects in the indoor environment.
GPS is currently the most widely used positioning technology. Although GPS technology has formed a fairly mature industrial application in outdoor positioning, when the GPS receiver works indoors, the wireless signal from the satellite is greatly attenuated by the influence of the building. GPS receivers cannot receive enough satellite signals to achieve indoor positioning

Method used

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  • Indoor electronic map generating method and system, and indoor target positioning method and system
  • Indoor electronic map generating method and system, and indoor target positioning method and system
  • Indoor electronic map generating method and system, and indoor target positioning method and system

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[0028] Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. However, the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully disclose the scope of the present invention to those skilled in the art.

[0029] figure 1 A block diagram of an exemplary computing system 100 suitable for implementing embodiments of the invention is shown. As shown, computer system 100 may include: CPU (Central Processing Unit) 101, RAM (Random Access Memory) 102, ROM (Read Only Memory) 103, system bus 104, hard disk controller 105, keyboard controller 106, serial Line interface controller 107 , parallel interface controller 108 , display controller 109 , hard disk 110 , keyboard 111 , serial peripheral 112 , parallel peripheral 113 and...

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Abstract

A method and system of generating an indoor radio map. In order to reduce the influence of multipath effect on indoor localization and improve the accuracy of indoor localization, a technique of processing data for indoor target locating and a technique of locating an indoor target based on the above technique is proposed. The method for generating an indoor radio map performs a smoothing process on the wireless signal strength measured in at least one position by a mobile node based on wireless signal strengths measured by the mobile node at adjacent positions, so as to reduce the influence of multipath effect.

Description

technical field [0001] The embodiments of the present invention generally relate to a method and system for processing data, and more specifically relate to a method and system for generating an indoor electronic map, and a method and system for indoor target positioning. Background technique [0002] With the rapid increase of data services and multimedia services, people's demand for positioning and navigation is increasing, especially in complex indoor environments, such as airport halls, exhibition halls, warehouses, supermarkets, libraries, underground parking lots, mines, etc. , it is often necessary to determine the location information of the mobile terminal or its holder, facilities and objects indoors. However, the indoor environment is a complex environment, and the signal is affected by the walls of people and objects in the room during the propagation process, and the attenuation is relatively large, which brings difficulties to the precise positioning of people...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00H04W4/33H04W4/02
CPCH04W4/04H04W4/33H04W4/02G01C21/206G01S5/0252G01S5/0273
Inventor 刘飞任常锐何苗李进峰董进
Owner IBM CORP
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