WO2013032041A1

WO2013032041A1 - Method for measuring distance, height, and length using a mobile communication terminal

Info

Publication number: WO2013032041A1
Application number: PCT/KR2011/006339
Authority: WO
Inventors: 유민규
Original assignee: Ryoo Min-Kyu
Priority date: 2011-08-26
Filing date: 2011-08-26
Publication date: 2013-03-07
Also published as: KR20130022831A

Abstract

The present invention relates to a method for measuring the distance, height, and length of a subject to be measured using a mobile communication terminal (smart phone or cellular phone). According to the present invention, a method for measuring the distance to a point to be measured using a mobile communication terminal having a sensor and a camera is disclosed, the method comprising the steps of: (a) obtaining the height from the mobile communication terminal to the ground when starting measuring; (b) capturing an image of the ground of a distance-measured subject as a measured point using the camera; (c) measuring an included angle perpendicular to the ground and the measured point captured on the basis of the mobile communication terminal through the sensor; and (d) calculating the distance to the measured point using a trigonometric function on the basis of the measured included angle and the obtained height.

Description

Distance, height and length measurement method using mobile communication terminal

The present invention relates to a measuring method using a mobile communication terminal, and more particularly, to a method of measuring a distance, height, length, etc. of a measurement target using a mobile communication terminal (smartphone, mobile phone).

This application claims priority based on Korean Patent Application No. 10-2011-0085776 filed on Aug. 26, 2011, and all the contents disclosed in the specification and drawings of the application are incorporated in this application.

With the recent rapid development of electronic engineering and communication engineering, mobile communication terminals have various functions. That is, with the rapid development of wireless communication and data processing technology, people can use not only voice calls but also Internet access, video communication and video message transmission using mobile communication terminals. In addition, due to the rapid dissemination of mobile communication terminals, mobile communication terminals have become an essential means of communication in modern life, such as a considerable amount of communication occurring in human relationships through mobile communication terminals.

As the mobile communication service becomes popular and the spread of mobile communication terminals increases, developments are being made to include various functions in the mobile communication terminals and to improve performance. Recently, a smartphone, a mobile phone having various functions and performances, has been developed, and many users purchase and use the smartphone. In addition, recent mobile phones have a built-in sensor for indicating the camera and the direction and angle, tilt, acceleration, illuminance, and the like. Application of these sensors can provide a variety of services through a mobile phone, for example, when shooting a specific object with a mobile phone camera, the application (hereinafter referred to as "app") the mobile phone to use the sensor There is an augmented reality service that can check the angle.

As such, users are increasingly required to receive various interesting and useful services and apps through various functions and capabilities included in recent mobile phones.

Accordingly, the present invention has been made to solve the above-described needs, and provides a method and an app for easily performing various measurements on a specific target object by utilizing various functions and capabilities of a mobile communication terminal. Its purpose is to.

Other objects and advantages of the invention will be described below and will be appreciated by the embodiments of the invention. In addition, the objects and advantages of the invention may be realized by the means and combinations indicated in the appended claims.

In order to achieve the above object, the distance measuring method using a mobile communication terminal according to the present invention, a method for measuring the distance to the measurement point using a mobile communication terminal having a sensor and a camera, (a) measurement Receiving a height from the mobile communication terminal to the ground at the start time; (b) photographing the ground of the distance measuring object as a measurement point through a camera; (c) measuring an angle between the measurement point photographed with respect to the mobile communication terminal and perpendicular to the ground through a sensor; And (d) calculating a distance to a measurement point through a trigonometric function based on the measured angle between the angle and the input height.

On the other hand, in the step (b), it is preferable to maintain the horizontal tilt of the camera when photographing the measurement point, in the step (d), it is preferable to calculate the distance to the measurement point through the following equation. .

Equation: D = tanθ * H (wherein D is a distance, H is a height and θ is an angle)

In addition, the sensor of the mobile communication terminal is preferably an angle, tilt and direction sensor.

According to another aspect of the invention, a method for measuring the height of the measurement target using a mobile communication terminal having a sensor and a camera, (a) receiving the height from the mobile communication terminal to the ground at the start of the measurement, the measurement Measuring a distance to the subject; (b) photographing the upper end of the measurement object as a measurement point through a camera; (c) measuring an angle between the measurement point photographed with respect to the mobile communication terminal and the ground horizontal through the sensor; And (d) calculating a height from the terminal to a measurement point perpendicular to the terminal through a trigonometric function based on the measured inter-angle and the measured distance, and calculating the height of the measurement target by adding the heights of the input ground. A height measuring method using a mobile communication terminal is provided.

In particular, in the step (d), it is preferable to calculate the height up to the measurement point perpendicular to the terminal through the following equation.

Equation: T = tanθ * D (In the above equation, D is the distance, T is the height from the terminal to the vertical measuring point, θ is the angle between)

According to another aspect of the invention, a method for measuring the length of the measurement object using a mobile communication terminal having a sensor and a camera, (a) receiving the height from the mobile communication terminal to the ground at the start of the measurement, Measuring a distance to one end of the measurement target and a distance to the other end of the measurement target; (b) photographing one end and the other end of the measurement object as measurement points through a camera; (c) measuring an angle between one end measurement point and the other end measurement point photographed based on the mobile communication terminal through a sensor; And (d) calculating a length of the measurement target through a trigonometric function based on the measured inter-angle, the measured distance to one end and the distance to the other end. A length measuring method is provided.

Further, in the step (d), it is preferable to calculate the length from one end to the other end of the measurement object through the second cosine law.

According to still another aspect of the present invention, there is provided a computer-readable recording medium having recorded thereon a program to be executed, including the measuring method according to any one of the above methods.

According to the present invention, by using a variety of sensors and cameras provided in the mobile communication terminal, by measuring the angle with a specific point of the target to be measured, using a trigonometric function various elements such as distance, height, length, area of the target terminal It provides an effect that can be measured simply and easily.

The following drawings attached to this specification are illustrative of preferred embodiments of the present invention, and together with the detailed description of the invention to be described later serve to further understand the technical spirit of the present invention, the present invention is a matter described in such drawings It should not be construed as limited to.

1 is a diagram illustrating a configuration of a mobile communication terminal device in which a measurement method using a mobile communication terminal according to an embodiment of the present invention is implemented.

2 is a diagram illustrating a procedure of a distance measuring method using a mobile communication terminal according to an embodiment of the present invention.

3 is a view showing a measuring principle of the distance measuring method using a mobile communication terminal according to an embodiment of the present invention.

4 is a view showing a procedure of a height measuring method using a mobile communication terminal according to an embodiment of the present invention.

5 is a view showing a measuring principle of the height measuring method using a mobile communication terminal according to an embodiment of the present invention.

6 is a diagram illustrating a procedure of a length measuring method using a mobile communication terminal according to one embodiment of the present invention.

7 is a view showing a measuring principle of the length measuring method using a mobile communication terminal according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

Referring to FIG. 1, the mobile communication terminal device 100 in which the present invention is implemented may include a camera module 110, a sensor module 120, an operation input module 130, a distance measuring module 140, and a height measuring module ( 150, the length measuring module 160, the area measuring module 170, and the like.

The camera module 110 is a module that performs a function of capturing an image included in a mobile phone, a smart phone, etc., and is composed of a digital camera and a controller for controlling the same.

The sensor module 120 is provided in a mobile phone, a smart phone, etc. to perform various sensing functions, and serves to measure direction, angle, tilt, and the like. The sensor included in the sensor module 120 may include a direction sensor, an angle sensor, a tilt sensor, and the like. The direction sensor may measure the direction to shoot through the camera module 110, the angle sensor may measure the angle of the point photographed through the camera module 110 with respect to the terminal, the tilt The sensor may measure the inclination of the terminal including the camera module 110.

The manipulation input module 130 serves to allow a user to manipulate the mobile communication terminal device and input various information. The manipulation input module 130 may include a keypad, a touch pad, a touch screen, a microphone, and the like.

The distance measuring module 140 measures and calculates a distance to a measurement target desired by a user. The distance measuring module 140 interworks with the camera module 110, the sensor module 120, and the manipulation input module 130 to perform a distance measurement process. First, a desired measurement object and a measurement point are photographed by the user through the camera module 110, and the height is received from the ground of the terminal currently photographed by the user through the manipulation input module 130, and the sensor module 120 is provided. The angle between the measuring point and the ground perpendicular to the ground is measured, and then the distance to the measurement target is calculated using a trigonometric function based on the current shooting height and angle. Here, when photographing the measurement point through the camera module 110, the sensor module 120 to guide the left and right tilt of the screen to be photographed to maintain the horizontal. Such a detailed description of the distance measurement algorithm and the calculation process will be described later through additional drawings.

The height measuring module 150 measures and calculates a height of a measurement target desired by a user. The height measurement module 150 performs height measurement processing in association with the camera module 110, the sensor module 120, the manipulation input module 130, and the distance measurement module 140. First, the current height is input through the manipulation input module 130, the distance to the object is measured through the distance measuring module 140, and then the upper end point of the object is photographed by the user through the camera module 110. The sensor module 120 measures the angle between the upper end point and the ground horizontally, and then calculates the height from the terminal to the upper end of the object through the trigonometric function based on the distance to the object and the angle between the ground and the ground. In the step of summing the height of the terminal to calculate the height of the final target. Such a detailed description of the height measurement algorithm and the calculation process will be described later through additional drawings.

The length measuring module 160 measures and calculates the length from one end to the other end of the measurement target desired by the user. The length measuring module 160 performs length measurement processing in association with the camera module 110, the sensor module 120, the manipulation input module 130, and the distance measuring module 140. First, the current height is input through the manipulation input module 130, and the distance is measured from the terminal to one end of the object and the terminal to the other end of the object through the distance measuring module 140. Next, one end and the other end point of the object are photographed by the user through the camera module 110, and the sensor module 120 measures the angle between the one end and the other end, and the one end and The distance from one end of the object to the other end is calculated through a trigonometric function, with each distance to the other end as both sides and the angle between them as the measured value. Such a detailed description of the length measurement algorithm and the calculation process will be described later through additional drawings.

The area measuring module 170 measures and calculates an area of a measurement target (rectangle) desired by the user. The length measuring module 160 is interlocked with the camera module 110, the sensor module 120, the manipulation input module 130, the distance measuring module 140, and the length measuring module 160. Perform measurement processing. The area measuring module 170 measures the length of one side of the rectangular object desired by the user through the length measuring module 160, and measures the length of the other side in contact with the rectangular object based on the lengths of the two sides. To calculate.

2 is a view showing a procedure of a distance measuring method using a mobile communication terminal according to an embodiment of the present invention, Figure 3 shows a measuring principle of the distance measuring method using a mobile communication terminal according to an embodiment of the present invention Drawing.

2 and 3, a distance measuring method using a mobile communication terminal according to the present invention will be described. First, a procedure of receiving a height value H of a position A 'currently photographed through a mobile communication terminal is performed by a user. In this case, the user directly inputs the height value H from the ground of the current terminal and the camera. The height value may be input based on the height of the user, or the height may be directly measured by using an external tool. (S11)

Next, a procedure of photographing is performed by using the camera B of the terminal as a measurement point. In this case, the camera is photographed by manipulating the camera to coincide with the measurement point B of the center grid of the camera. In addition, the camera or the mobile communication terminal to shoot while maintaining the horizontal so as not to tilt the left and right when shooting with the camera. In this case, the inclination sensor may inform the user whether the current photographing is maintained horizontally without tilting from side to side (S12).

When the ground of the object is photographed as the measuring point B, the angle between the virtual line from the terminal A 'to the measuring point B and the virtual line from the terminal A' to the point A perpendicular to the ground ( A measuring procedure between the angles θ is made. The angle measurement may be performed through an inclination sensor, an angle sensor, a direction sensor, and the like, which measure the tilt of the camera.

As such, when the angle θ between the height value H of the terminal to be received and the target point B at the terminal A 'and the point A perpendicular to the ground at the terminal A' are measured, Based on these values, a procedure for calculating the distance D to the object through a trigonometric function is performed. That is, if one side and the angle of the right triangle are input, the length value of the other side can be calculated through the trigonometric function, and thus, the distance D to the object can be calculated.

At this time, the trigonometric formula used may be [D = tanθ * H].

Here, 'D' is the distance from the measurement object, which is the base of the right triangle of the drawing, 'H' is the height of the terminal from the ground, which is the height of the right triangle, and 'θ' is the AA 'and' A 'of the right triangle. The angle between the B sides.

By using the method of this embodiment, the distance from a tall building or a building to a measurement object at a distant distance can also be measured. That is, if the height of the building where the current terminal is located as a height value on the ground, it is possible to calculate the distance to the measurement target through the above-described procedure.

4 is a view showing a procedure of a height measuring method using a mobile communication terminal according to an embodiment of the present invention, Figure 5 shows a measuring principle of the height measuring method using a mobile communication terminal according to an embodiment of the present invention Drawing.

4 and 5, a height measuring method using a mobile communication terminal according to the present invention will be described. First, the height value H of the position A 'of the terminal currently photographed is input from the user, and the distance D to the measurement target (tree in the drawing) is measured by the distance measuring method described in the above-described embodiment. And calculating procedure. Here, since the distance D measurement and calculation procedures to the measurement target have been described above, detailed descriptions thereof will be omitted (S21).

Next, a procedure of photographing is performed by using the camera B of the terminal as the measurement point of the upper end portion B '. At this time, again, the center grid at the time of camera shooting is performed by manipulating the camera or the terminal so as to coincide with the measurement point B '. In addition, the terminal and the camera are guided to maintain the horizontal through the inclination sensor so as not to tilt left and right. (S22)

When the upper end B 'of the measurement target is photographed as a measurement point, the angle between the virtual line from the terminal A' to the upper end measurement point B 'of the object and the virtual line horizontal to the ground at the terminal A'. A measuring procedure between the angles [theta] is made. The angle measurement may also be performed through a tilt sensor, an angle sensor, a direction sensor, and the like, which measure the tilt of the camera or the terminal (S23).

As described above, an angle θ between the distance D from the terminal A 'to the target, the target upper end point B' at the terminal A ', and a virtual line horizontal to the ground at the terminal A'. When the measurement is performed, a procedure for calculating the height T from the upper end portion B 'of the target to a point horizontal to the terminal through the trigonometric function is performed. In this case, when one side and the angle of the right triangle are measured, the length value of the other side may be calculated through the trigonometric function, and thus, the height T from the target upper end portion B ′ to the point horizontal to the terminal may be calculated. (S24)

In this case, the trigonometric formula used may be, for example, [T = tanθ * D].

Here, 'D' is the distance to the measurement target which is the base of the right triangle of the drawing, 'T' is the height from the upper end of the target that is the height of the right triangle to the horizontal point on the terminal, and 'θ' is the A of the right triangle. The angle between the B 'side and the horizontal side of the ground.

Next, when the height T from the upper end portion B 'of the target to the point horizontal to the terminal is calculated, the height H from the ground A first inputted to the terminal A' and the calculated target A process of calculating the height of the final object is performed by summing the heights T from the upper end portion B 'to a point horizontal to the terminal.

6 is a view showing a procedure of a length measuring method using a mobile communication terminal according to an embodiment of the present invention, Figure 7 shows a measuring principle of the length measuring method using a mobile communication terminal according to an embodiment of the present invention Drawing.

6 and 7, a length measuring method using a mobile communication terminal according to the present invention will be described. In this example, the object to be measured is the length L of a straight line with BC as the vertex in the drawing. First, the height H of the current terminal is input from the user, and the distance D1 from the terminal to the one end B of the measurement target and the other measurement target in the terminal through the distance measuring method described in the above-described embodiment. The procedure for measuring and calculating the distance D2 to the end C is carried out. Here, since the measurement and calculation procedures of the distance D1 to one end B and the distance D2 to the other end C have been described above through the embodiment of the above-described distance measuring method, a detailed description thereof will be omitted. (S31)

Next, a procedure of performing photographing is performed by using one end B and the other end C of a target to be measured through the camera of the terminal as measuring points, respectively. At this time, the center grid is photographed by manipulating the camera so as to coincide with each measurement point (B, C). In addition, of course, the terminal and the camera are guided to maintain the horizontal through the tilt sensor so as not to tilt left and right.

When one end B and the other end C of the object to be measured are respectively photographed as measurement points, the virtual line from the terminal A 'to the one end measurement point B of the object and the other end measurement point of the object from the terminal A procedure of measuring the angle θ is performed to measure the angle θ between imaginary lines up to (C). This, too, can be measured through the tilt, direction, angle sensor provided in the terminal (S33).

As described above, the distances D1 and D2 from the terminal A 'to the one end B and the other end C of the object and the one end B of the measurement target based on the terminal A'. When the angle θ between the and the other end C is measured, a procedure for calculating the length from one end to the other end of the object through a trigonometric function is performed based on the measured values. That is, if the input angle between two sides of the triangle and the two sides is input, the length of the other side can be calculated through the second law of cosine, and thus the length L of the object can be calculated.

It can be given as an example - this time using [2 * D1 * D2 * COSθ L ² = D1 + D2 ² ^2] Using the cosine second law equation is.

Here, 'L' is the length of the measurement object, which is one side of the triangle facing each other in the drawing, 'D1' is the distance from one terminal of the measurement object, which is one side of the triangle between the angles, and 'D2' Is the distance from the terminal, which is the other side of the triangle with the inter-angle, to the other end of the measurement target, and 'θ' is the inter-angle between the triangle on the side where the terminal is located.

Using the method of this embodiment, it is also possible to measure the area of a specific space in the form of a rectangle. That is, the length of one side of the rectangular space to be measured is measured by the above-described method, the length of the other side in contact with the measured one side is measured, and then the length of the two sides measured is multiplied to give an area of the space to be measured. Can be calculated.

As described above, by using the above-described embodiments in combination, it is possible to easily measure various distances, lengths, heights, areas, and the like through the mobile communication terminal according to the situation.

The methods of the present invention as described above may be implemented in a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form.

While this specification includes many features, such features should not be construed as limiting the scope of the invention or the claims. Also, the features described in the individual embodiments herein can be implemented in combination in a single embodiment. Conversely, various features described in a single embodiment herein can be implemented in various embodiments individually or in appropriate subcombination.

Although the operations are described in a particular order in the drawings, they should not be understood as being performed in a particular order as shown, or in a sequence of successive orders, or in which all described actions are performed to obtain a desired result. . In some circumstances, multitasking and parallel processing may be advantageous. In addition, it should be understood that the division of various system components in the above-described embodiments does not require such division in all embodiments. The program components and systems described above may generally be packaged in a single software product or multiple software products.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

Claims

A method for measuring the distance to a measurement point using a mobile communication terminal having a sensor and a camera,

(a) receiving a height from the mobile communication terminal to the ground at the start of measurement;

(b) photographing the ground of the distance measuring object as a measurement point through a camera;

(c) measuring an angle between the measurement point photographed with respect to the mobile communication terminal and perpendicular to the ground through a sensor; And

(d) calculating a distance to a measurement point through a trigonometric function based on the measured inter-angle and the input height; and a distance measuring method using a mobile communication terminal.
The method of claim 1,

Step (b), when photographing the measuring point,

Distance measuring method using a mobile communication terminal, characterized in that to maintain the horizontal left and right tilt of the camera.
The method of claim 1,

In step (d),

Distance measuring method using a mobile communication terminal, characterized in that to calculate the distance to the measuring point through the following equation.

Equation: D = tanθ * H

(Wherein D is a distance, H is a height and θ is an angle)
The method of claim 1,

The sensor of the mobile communication terminal,

Distance measuring method using a mobile communication terminal, characterized in that the angle, the tilt and the direction sensor.
A method of measuring the height of a measurement target by using a mobile communication terminal having a sensor and a camera,

(a) receiving a height from a mobile communication terminal to the ground at a measurement start time and measuring a distance to a measurement target;

(b) photographing the upper end of the measurement object as a measurement point through a camera;

(c) measuring an angle between the measurement point photographed with respect to the mobile communication terminal and the ground horizontal through the sensor; And

(d) calculating a height from the terminal to a measurement point perpendicular to the terminal through a trigonometric function based on the measured inter-angle angle and the measured distance, and calculating the height of the measurement target by summing the heights of the input ground; Height measurement method using a mobile communication terminal comprising a.
The method of claim 5,

In step (d),

The height from the terminal to the measuring point perpendicular to the height measurement method using a mobile communication terminal, characterized in that it is calculated through the following equation.

Equation: T = tanθ * D

(In the above equation, D is the distance, T is the height from the terminal to the vertical measuring point, θ is the angle between)
A method of measuring the length of a measurement target by using a mobile communication terminal having a sensor and a camera,

(a) receiving a height from the mobile communication terminal to the ground at the start of measurement and measuring a distance to one end of the measurement target and a distance to the other end of the measurement target;

(b) photographing one end and the other end of the measurement object as measurement points through the camera;

(c) measuring an angle between one end measurement point and the other end measurement point photographed based on the mobile communication terminal through a sensor; And

(d) calculating a length of the measurement object through a trigonometric function based on the measured inter-angle angle, the measured distance to one end and the distance to the other end; and a length using a mobile communication terminal. How to measure.
The method of claim 7, wherein

In step (d) above,

The length from one end of the measurement target to the other end, the length measurement method using a mobile communication terminal, characterized in that it is calculated through the second law of cosine.
A computer-readable recording medium having recorded thereon a program to be executed, including the measuring method according to any one of claims 1 to 8.