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Distance measuring method based on cell phone and cell phone thereof

A distance measurement method and mobile phone technology, applied in the field of distance measurement, can solve the problems of inability to measure the length of an object or the length of a curve, inconvenient carrying of length measurement tools, inability to measure the moving distance of mobile phones, etc. The effect of high degree of automation and easy portability

Inactive Publication Date: 2017-07-18
PHICOMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the above two solutions have solved the inconvenient problem of carrying the length measuring tool to a certain extent, the former can only measure the horizontal distance between the mobile phone and the object, and the latter can only measure the straight-line distance between two mobile phones , Moreover, the two cannot measure the specific length or curve length of an object, nor can they measure the moving distance of the mobile phone, so the application range is limited

Method used

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  • Distance measuring method based on cell phone and cell phone thereof
  • Distance measuring method based on cell phone and cell phone thereof
  • Distance measuring method based on cell phone and cell phone thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] This embodiment is used to measure the length of a straight line segment or a curved segment on a certain plane by moving the mobile phone.

[0052] Such as figure 1 As shown, the mobile phone based on the ranging method of the mobile phone, the mobile phone is preferably a smart phone, which includes a central processing unit 1, and the central processing unit 1 is connected to the acceleration sensor 2, the input module 3, the display module 4 and the data storage module 5 respectively , the sampling period of the acceleration sensor 2 is less than or equal to the interval time;

[0053] Wherein, central processing unit 1 is used for processing various data including mobile phone acceleration;

[0054]The acceleration sensor 2 is used to collect the acceleration of the mobile phone;

[0055] The input module 3 is used to input the start measurement signal and the end measurement signal, and the input module 3 can be a button, a touch screen, etc.;

[0056] The disp...

Embodiment 2

[0091] The structure, principle and implementation steps of this embodiment are similar to Embodiment 1, the difference lies in:

[0092] In step S22, the X-axis velocity component and the Y-axis velocity component of the mobile phone in the two-dimensional XY coordinate system within the mth interval are both formula ②, namely:

[0093] v m =v m-1 +a m Δt ②;

[0094] This ranging method based on the mobile phone utilizes the last calculation result v m-1 , no repeated calculation is required, the calculation process is simplified, and the computing resources of the central processing unit 1 are saved.

Embodiment 3

[0096] The structure, principle and implementation steps of this embodiment are similar to Embodiment 1 or 2, the difference lies in:

[0097] In step S23, the X-axis total displacement component and the Y-axis total displacement component of the mobile phone in the two-dimensional XY coordinate system within the elapsed time are both formula ④, namely:

[0098] s(t)=s(t-1)+v N-1 Δt+a N (Δt) 2 / 2 ④.

[0099] This mobile phone-based ranging method uses the last calculation result s(t-1) when calculating the total displacement component of the X axis and the total displacement component of the Y axis of the mobile phone in the two-dimensional XY coordinate system within the elapsed time, and does not need to be repeated The calculation simplifies the calculation process and saves the computing resources of the central processing unit 1.

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Abstract

The invention provides a distance measuring method based on a cell phone and the cell phone thereof. The distance measuring method comprises steps that S1, a measurement starting signal is input in an input module; S2, a central processor is used to receive an acceleration transducer signal at a certain interval, and is used to calculate the X axis total displacement component and / or the Y axis total displacement component and / or the Z axis total displacement of the cell phone component in the time; S3, a measurement ending signal is input in the input module; S4, the final displacement of the cell phone is calculated by the central processor, and is output to a display module for display. The distance measuring method is advantageous in that by using the cell phone to realize the distance measurement, operation is simple; the cell phone is portable, and can be used for the distance measurement conveniently and quickly, and is not limited by time and places, and therefore a linear distance, a horizontal distance, and a curve length can be measured, and an application range is wide.

Description

technical field [0001] The invention belongs to the technical field of ranging, and in particular relates to a ranging method based on a mobile phone and the mobile phone. Background technique [0002] Length measuring tools mainly include micrometers, vernier calipers, vertical length measuring instruments, optical micrometers, etc. These tools have high precision, but they are inconvenient to carry around. For length measurement occasions that do not require high precision, it is not necessary to use the above-mentioned professional length measurement tools. The mobile phone has almost become a necessity that people carry with them, and it is convenient and quick to use the mobile phone to measure the distance. An existing method is to use the gyroscope in the mobile phone to calculate the angle between the mobile phone and the terminal line and the vertical line, then use its own height to calculate the height of the mobile phone, and finally use trigonometric functions ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/04H04M1/725
CPCG01B21/04H04M1/72403
Inventor 马亚辉
Owner PHICOMM (SHANGHAI) CO LTD
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