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Indoor three-dimensional positioning system and positioning method based on mobile phone built-in sensor

A technology of three-dimensional positioning and positioning method, applied in the directions of instruments, measuring devices, surveying and navigation, etc., can solve the problems of inability to apply outdoor positioning technology, independent functions, and not applied to indoor positioning, etc., and achieve good economic value and practical value. The effect of low cost and convenient operation

Inactive Publication Date: 2016-06-01
中电科网络安全科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some fields, such as indoor fire drills, emergency rescue in complex environments, indoor tracking, etc., it is necessary to track the movement path and position of indoor personnel in real time, and outdoor positioning technology cannot be applied to these fields
[0003] Generally speaking, mobile phones have built-in acceleration sensors, orientation sensors, and pressure sensors (as described below), but each has independent functions and has not been applied to indoor positioning.

Method used

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  • Indoor three-dimensional positioning system and positioning method based on mobile phone built-in sensor
  • Indoor three-dimensional positioning system and positioning method based on mobile phone built-in sensor
  • Indoor three-dimensional positioning system and positioning method based on mobile phone built-in sensor

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Embodiment Construction

[0044] The design concept of the present invention is: use the acceleration data of the mobile phone acceleration sensor to estimate the step length of each step, combine the azimuth to obtain the two-dimensional coordinates of the measuring personnel, and calculate the altitude from the pressure value of the pressure sensor, thereby realizing the accurate positioning of the indoor personnel .

[0045] In order to use the sensor data, it is necessary to register the acceleration and direction sensor and the air pressure sensor in the sensor registration method. Considering that the time for a normal adult to take a step is between 0.2 and 2 seconds, set the sensor to perform sensor state judgment every 0.2 seconds . If the sensor status changes, the data value of the sensor is updated in real time.

[0046] The main technical core of this invention lies in the acquisition and calculation of three-dimensional coordinate values, as well as the real-time transmission and display of d...

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Abstract

The invention discloses an indoor three-dimensional positioning system and positioning method based on a mobile phone built-in sensor. The acceleration data of a mobile phone acceleration sensor is used for estimating the step length of each step; the azimuth angle is combined for obtaining the two-dimensional coordinate of test personnel; the sea level elevation is reckoned by using the pressure value of a pressure sensor; the precise positioning of indoor personnel is further realized. The existing parts of a mobile phone are used for realizing the indoor positioning of a mobile phone holder; the cost is low; the operation is convenient; the indoor positioning technical requirements are completely met; good economic values and practical values are realized.

Description

Technical field [0001] The invention belongs to the technical field of mobile phone indoor positioning, and specifically relates to an indoor three-dimensional positioning system and a positioning method based on a built-in sensor of a mobile phone. Background technique [0002] Currently, most positioning technologies are aimed at outdoor positioning, while indoor positioning is rare. In some fields, such as indoor fire drills, emergency rescue in complex environments, indoor tracking, etc., it is necessary to track the movement paths and positions of indoor personnel indoors in real time. Outdoor positioning technology cannot be applied to these fields. [0003] Generally speaking, mobile phones have built-in acceleration sensors, direction sensors, and pressure sensors (as described below), but their functions are independent, and they are not applied to indoor positioning. [0004] Mobile phone acceleration sensor: The acceleration sensor is often used for flipping various games...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/20
CPCG01C21/206
Inventor 张亮亮
Owner 中电科网络安全科技股份有限公司
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