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Indoor positioning system based on RFID technology

An indoor positioning and technology technology, applied in the direction of positioning, radio wave measurement system, collaborative operation devices, etc., can solve the problems of a large amount of data training, inability to perform accurate positioning, and the SpotON system has not been built, and achieve high application value and strong practicality. high precision

Inactive Publication Date: 2009-11-11
GUANGZHOU HKUST FOK YING TUNG RES INST
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The disadvantage of this method is that it requires a large amount of data for training, and at the same time, it cannot be accurately positioned when there is a lot of interference.
However, a complete SpotON system has not yet been built

Method used

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  • Indoor positioning system based on RFID technology
  • Indoor positioning system based on RFID technology
  • Indoor positioning system based on RFID technology

Examples

Experimental program
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Embodiment Construction

[0016] like figure 1 As shown, the system includes a hardware part and a software part, and the software part runs on the server, which is the core part of the system. The computer program code of the software is written in C++ language, developed based on Microsoft Visual Studio 2005 integrated development environment, and the background database system is Microsoft SQL Server 2005. The number of RFID tags and readers in this system depends on the actual situation of the application scenario, and both reference tags and tracking tags use active tags. As a server, the PC host memory must reach 2G or above, the CPU must be dual-core, the main frequency is above 2.3G Hz, and the hard disk space must reach at least 360G. The administrator terminal only needs an ordinary monitor and keyboard, and the server is the host of the administrator terminal. The computer equipped near each booth only needs an ordinary PC mainframe, but it must support multimedia functions and have a 19-i...

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Abstract

The invention provides a new indoor accurate positioning system based on a RFID technology. The system is shown in a figure 1 and mainly comprises components, such as RFID reader-writers, RFID reference tags, RFID track tags, and the like, and a user can obtain corresponding positioning service by connecting a personal intelligent device to a wireless local area network. The system uses wireless signal intensity as a positioning reference, the tags are communicated with the reader-writers by radio waves, and each reader-writer can read and record the signal intensity of all tags at set intervals. A certain reference tags at known positions are used as reference points, and the signal intensity of the track tags are compared with the signal intensity of the reference tags by the positioning method according to the signal intensity characteristics of the reference points so as to obtain more accurate position information of the track tags.

Description

technical field [0001] The invention is a system for realizing indoor positioning of personnel, vehicles and other articles by using RFID technology. The system can be applied to the positioning of personnel, vehicles and objects in large indoor places such as exhibitions, museums, parking lots, shopping malls, etc., and can be used in conjunction with electronic devices such as mobile phones and PDAs to achieve precise positioning. technical background [0002] Radio frequency identification technology (RFID is the abbreviation of Radio Frequency Identification), also known as electronic tags or radio frequency identification technology, is a technology that can identify specific targets and read and write related data through radio signals. RFID technology involves many high-tech fields such as information, manufacturing, and materials, covering wireless communication, chip design and manufacturing, antenna design and manufacturing, label packaging, system integration, inf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/02G06K17/00H04W84/12
Inventor 倪明选赵弋洋高民
Owner GUANGZHOU HKUST FOK YING TUNG RES INST
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