Mobile terminal supporting indoor positioning

A mobile terminal and indoor positioning technology, applied in the field of positioning, can solve the problem of large positioning error

Inactive Publication Date: 2015-04-01
SICHUAN CHANGHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Router---GPS joint positioning technology, for places where indoor GPS cannot cover, such as basements and relatively closed indoor environments, it can only be estimated by the known location of the nearest router, and the positioning error is also relatively large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0015] An example is used below to illustrate the detailed positioning process of the mobile terminal with indoor positioning function of the present invention. In this example, the mobile terminal is a smart phone equipped with three ranging antennas.

[0016] 1. Prepare a mobile phone equipped with 3 ranging antennas, a phase detection and ranging function module and a compass function, and a standard WIFI wireless router device.

[0017] 2. Use the ranging module of the mobile terminal mentioned in the previous article to measure the relative position coordinates of the WiFi device in the spatial coordinate system of the reference horizontal plane composed of the mobile terminal as the reference origin and the three ranging antennas on the mobile terminal, assuming The relative spatial coordinates of the WiFi device are measured as (a, b, c).

[0018] 3. Then use the compass tool on the mobile terminal to measure the absolute orientation of the WiFi device relative to the m...

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Abstract

The invention relates to a positioning technology, in particular to a mobile terminal supporting indoor positioning. The invention aims at providing a mobile terminal provided with an indoor positioning function. The mobile terminal supporting indoor positioning, which is provided by the invention, comprises a mobile terminal body, wherein the mobile terminal has a wireless communication function, the mobile terminal further comprises at least three distance measurement antennas, a pointing module and a processing module, all distance measurement antennas are positioned on the same horizontal plane and are used for measuring distances between the distance measurement antennas and the wifi (Wireless Fidelity) equipment; the pointing module has a direction pointing function; the processing module is used for computing to obtain a relative position of the wifi equipment relative to the mobile terminal according to the distances, measured by the distance measurement antennas, between the wifi equipment and the distance measurement antennas and obtaining relative dimensional orientation information of the wifi equipment relative to the mobile terminal according to the absolute orientation, which is measured by the pointing module, of the wifi equipment and the mobile terminal. The mobile terminal supporting indoor positioning is suitable for positioning of the mobile terminal.

Description

technical field [0001] The invention relates to positioning technology, in particular to a mobile terminal supporting indoor positioning. Background technique [0002] At present, in the era when the Internet of Things and O2O are becoming increasingly mature and widely used, the requirements for the convenience and accuracy of mobile terminal positioning technology are getting higher and higher. However, the current indoor positioning technology using WiFi signal strength has a serious defect of large errors. At present, the positioning error level with better control is about 1 meter, and the usual error range is 3 meters to 9 meters. Router---GPS joint positioning technology, for places where indoor GPS cannot cover, such as basements and relatively closed indoor environments, it can only be estimated by the known location of the nearest router, and the positioning error is also relatively large. There is a need for an indoor positioning system, which can accurately loca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/02G01S5/14
Inventor 吴纯彬余峰
Owner SICHUAN CHANGHONG ELECTRIC CO LTD
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