Locating system based on intelligent mobile device and locating method

A technology of mobile equipment and positioning system, applied in positioning, radio wave measurement system, measurement device and other directions, can solve the problem of high cost of indoor precise positioning equipment, achieve the effect of simple structure, accurate positioning, and improve anti-noise performance

Inactive Publication Date: 2014-10-15
SUZHOU HONGTING INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is the high cost of indoor precise positioning equipment in the prior art, so as to provide a low-cost positioning system and positioning method based on intelligent mobile devices

Method used

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  • Locating system based on intelligent mobile device and locating method
  • Locating system based on intelligent mobile device and locating method
  • Locating system based on intelligent mobile device and locating method

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Embodiment 1

[0048] see figure 1 As shown, as a positioning system based on an intelligent mobile device according to an embodiment of the present invention, the system includes:

[0049]Three locators, each of the locators is used to broadcast an audio signal, and the audio signal includes a locator ID. As a specific implementation, the locators are identified by multi-user orthogonal codes, that is, through Use different multi-user orthogonal codes to identify different locator IDs, and broadcast the audio signal after performing orthogonal encoding (such as BPSK) on the audio signal. Using multi-user orthogonal codes can effectively improve the anti-interference ability of the signal , and the BPSK encoding is simple and efficient to improve the system response speed; there is a simple reference time mechanism in the locator, and before each audio signal is sent, one or more distributed master locators send time synchronization signals; simple Time synchronization can also be used to e...

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Abstract

The invention relates to a locating system based on an intelligent mobile device and a locating method. A plurality of locators, which send radio signals, are configured, and the sent radio signals from the locators are received by the intelligent mobile device so that the locating of the intelligent mobile device is realized. A conventional intelligent mobile device is fully applied to act as a signal receiving and processing module so that a special and additional signal receiving and processing device is saved, and the whole locating system is simple in structure and low in cost. Meanwhile, the transmission speed of the radio signals is low and the relative bandwidth is large so that higher ranging accuracy can be realized and the position of the intelligent mobile device can be located more accurately.

Description

technical field [0001] The invention relates to an indoor positioning technology, in particular to a positioning system and a positioning method based on an intelligent mobile device. Background technique [0002] With the development of smart phones, people can easily locate geographical coordinates in a wide-area environment by using the onboard GPS module. The popularity of this positioning technology has prompted people to pursue indoor precise positioning services that are closer to life. [0003] The existing positioning methods mainly include satellite positioning (GPS), laser positioning, infrared positioning, Bluetooth positioning, Wifi positioning, Zigbee positioning, radar positioning, ultrasonic positioning, etc. However, the above-mentioned positioning methods, except ultrasonic positioning, cannot meet the requirements of precise indoor positioning. For example, satellite positioning can only provide the positioning of outdoor wide-area environments at the met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/26
CPCG01S5/26G01S5/30
Inventor 李晓林
Owner SUZHOU HONGTING INFORMATION TECH CO LTD
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