Indoor positioning method and system

A technology for indoor positioning and positioning parameters, which is applied in wireless communication services, electrical components, wireless communication, etc., can solve problems such as difficult implementation, signal noise, and easy interference of wireless network signals, and achieve simple application and high positioning accuracy Effect

Active Publication Date: 2014-01-15
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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Problems solved by technology

Use ultrasonic, bluetooth or radio frequency signals for positioning, but because these technologies require additional hardware to be added to the environment or mobile devices, the cost is high and it is not easy to implement, so there is no way to popularize them on a large scale
[0005] The second is the indoor positioning technology based on wireless network signals: due to the current high-coverag

Method used

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[0018] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0019] See figure 1 Shown is the operation flow chart of the preferred embodiment of the indoor positioning method of the present invention.

[0020] Step S401: Set a reference point, collect the fingerprint of the reference point, and store it in the fingerprint library. details as follows:

[0021] For an indoor environment that needs to be positioned, reference points P1, P2, ..., PN are set at regular intervals in the area that the equipment can reach in the room. The area that the device can reach refers to the area covered by the wireless network signal of the device. For each reference point Pi (i=1,2,...,N), collect the fingerprints Fi1, Fi2,...,FiM at that point and store them in the fingerprint library. Wherein, the fingerprint is represented by a vector, and the vector is obtained by combining the signal strengths of multiple devices receiv...

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Abstract

The invention relates to an indoor positioning method. The method comprises the steps that a. reference points are set, and fingerprints of the reference points are collected and are deposited in a fingerprint database; b. the collected fingerprint of each reference point is trained, so as to acquire a needed positioning parameter; c. by using the acquired positioning parameter, the distance between the fingerprint needing positioning and each reference point is calculated, the reference point of the minimum distance is selected as a positioning result. The invention further relates to an indoor positioning system. According to the invention, the method and the system can be easily applied to a variety of smart mobile devices, and high positioning accuracy can be acquired.

Description

technical field [0001] The invention relates to an indoor positioning method and system. Background technique [0002] With the continuous popularization of smart mobile devices and the rapid development of wireless network technology, service applications based on user information emerge in endlessly. As users require various services to be more and more targeted, user location information, as a basic information for providing customized services, is used by more applications in various services. Although the field of outdoor positioning has been basically developed due to GPS (Global Positioning System) positioning technology, indoor positioning is still in the development stage due to various limitations of the indoor environment. Therefore, how to propose an indoor positioning technology that is accurate and can be practically implemented in smart mobile devices is a challenging problem. [0003] The existing indoor positioning technology can be roughly divided into th...

Claims

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Application Information

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IPC IPC(8): H04W4/04H04W64/00
Inventor 沈昀陈爱樊建平黄昊权
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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