KR101125957B1 - Distance measuring apparatus and method for mobile communication using laser beam - Google Patents

Abstract

The present invention attaches a laser transmitting / receiving device to a camera-type mobile communication terminal, utilizes the camera as an aiming device, and fires a laser on an object photographed by the camera. The present invention relates to a distance measuring device and method using a laser of a mobile communication terminal to calculate and display an accurate distance of the mobile communication terminal, the laser generating unit being controlled through a user's menu operation to fire a laser; A laser receiver for receiving the fired laser; A modem controller for controlling the laser generator and the laser receiver, and calculating a distance based on a laser reception time; And an LCD screen displaying the measured distance calculated by the modem controller, and configuring the laser generator and the laser receiver to match the direction of the camera, and displaying a aiming screen by selecting a distance measurement menu from a user. Wow; Calculating a distance by automatically or manually firing a laser for distance measurement according to a preset distance measuring method; It can be achieved by including the step of displaying the calculated distance at a predetermined position of the aiming screen.

Description

Distance measuring device and method using laser of mobile communication terminal {DISTANCE MEASURING APPARATUS AND METHOD FOR MOBILE COMMUNICATION USING LASER BEAM}

1 is an illustration of a mobile communication terminal having a distance measuring device using a laser of the present invention.

Figure 2 is an exemplary view showing the mounting state of the laser generating unit and the laser receiving unit according to the present invention.

Figure 3 is an exemplary view showing the aiming screen displayed on the LCD screen in the distance measurement mode in accordance with the present invention.

Figure 4 is a flow chart illustrating a distance measuring method using a laser of a mobile communication terminal according to the present invention.

* Description of the symbols for the main parts of the drawings *

10: camera 20: LCD screen

101: laser generator 102: laser receiver

200: aiming screen

The present invention relates to a distance measuring device and method using a laser of a mobile communication terminal, and more particularly, to attach a laser transmitting / receiving device to a camera-type mobile communication terminal and to use the camera as an aiming device to apply a laser to an object photographed by the camera. The present invention relates to a distance measuring device and a method using a laser of a mobile communication terminal which emits and calculates and displays an accurate distance to an object photographed by a camera at a time when the laser is reflected and returned.

In general, there are various keys (keys) together with a wallet as a portable item of a user of a conventional mobile communication terminal, and in particular, a key holder for collecting and managing the keys includes an antistatic function, a mosquito repellent function, a flash function, and a tape measure. It is equipped with various additional functions such as a function.

However, in recent years, as most of the keys have been changed to electronic, there is almost no need to carry the keys except for the car keys, and as the user base of the mobile communication terminal is expanded to middle and high school students, additional functions provided through the existing key holders, etc. A lot of researches have been conducted to implement the above in a mobile communication terminal.

For example, the tape measure function of the additional functions added to the key holder was reduced in size by reducing the width of the tape measure, but the length of the tape measure was also shortened to about 1m, so that the tape measure was actually used to measure the length of the object. There is a problem that the ability to measure the distance of several tens of meters is lost.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and attaches a laser transmitting / receiving device to a camera-type mobile communication terminal and utilizes the camera as an aiming device to apply a laser to an object photographed by the camera. It is an object of the present invention to provide a distance measuring apparatus and method using a laser of a mobile communication terminal that can fire and calculate and display an accurate distance to an object photographed by a camera at a time when the laser is reflected and returned.

The present invention for achieving the above object, the laser generating unit for controlling the user's menu operation to fire a laser; A laser receiver for receiving the fired laser; A modem controller for controlling the laser generator and the laser receiver, and calculating a distance based on a laser reception time; And an LCD screen displaying the measured distance calculated by the modem controller, wherein the laser generator and the laser receiver are configured to match the direction that the camera faces.

In addition, the present invention comprises the steps of selecting a distance measurement menu from the user to display the aiming screen; Calculating a distance by automatically or manually firing a laser for distance measurement according to a preset distance measuring method; And displaying the calculated distance at a predetermined position on the aiming screen.

The present invention operates a distance measurement menu of a user interface in a camera-type mobile communication terminal to emit a laser to a desired object (or point), and the intensity or time of the waveform in which the emitted laser hits the object (or point). By adding a distance measuring function for displaying the corresponding distance on the liquid crystal display of the mobile communication terminal, the camera can be used as a kind of aiming device for accurately pointing an object (or a point) for measuring the distance. In addition, it is an object of the present invention to provide an apparatus and a method for aligning the laser generating apparatus with the photographing direction of the camera so that no error occurs.

In other words, a method for measuring distance using a laser generally uses a method for calculating a distance proportional to the time when the laser is reflected back. In the present invention, such a method may be added to the terminal rather than the measurement technology itself. In this case, the main purpose of the present invention is to provide a technology for adding a corresponding function (distance measurement function) most effectively by using a function of an existing terminal.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First of all, in adding reference numerals to the components of each drawing, it should be noted that the same components have the same reference numerals as much as possible even if displayed on different drawings.

Also, in the following description, numerous specific details, such as specific processing flows, are set forth in order to provide a more general understanding of the invention, and it is to be understood that the invention may be practiced without these specific details. It will be obvious to them.

In addition, detailed description of well-known functions and structures which are determined to unnecessarily obscure the subject matter of the present invention will be omitted.                     

1 is an exemplary diagram of a mobile communication terminal having a distance measuring device using a laser of the present invention, which is controlled by a user's menu operation to generate a laser and a laser generator 101 to receive the laser beam. The laser receiver 102 is provided, and the laser generator 101 and the laser receiver 102 are configured to match the direction in which the camera 10 faces.

In this case, the mobile communication terminal controls the laser generator and the laser receiver, a modem controller (not shown, MSM) for calculating the distance by the laser reception time, and an LCD screen for displaying the measured distance calculated by the modem controller 20 is provided.

That is, the arrangement of the laser generator 101 and the laser receiver 102 as described above is to accurately aim the object to be measured through the camera 10 when firing the laser for distance measurement. In addition, there is a feature that can more stably point to the target object than the conventional method using a laser pointer.

However, since the laser generating unit 101 and the laser receiving unit 102 are actually spaced apart from the camera 10 by a predetermined distance (several millimeters) as shown in FIG. 2, the object shown on the LCD screen 20. The center of the object and the actual position of the object to which the laser is reflected differ by the separation distance (a few millimeters).

Therefore, in the present invention, when performing a distance measurement function using a laser, as shown in FIG. 3, the aiming screen 200 displayed on the LCD screen 20 is corrected and displayed by the separation distance, and is separated from the camera input image. Displayed on a separate OSD (On Screen Display) screen. In this case, the shape of the aiming screen may be generally considered to be a shooting target shape, but may be displayed in various shapes according to the producer.

As a result, the position of the target object (point) on which the laser is reflected coincides with the aiming screen 200 displayed on the LCD screen 20 through the camera 10, and accurate distance measurement with the target object (point) is performed.

FIG. 4 is a flowchart illustrating a distance measuring method using a laser of a mobile communication terminal according to the present invention. When a distance measuring menu is selected through a menu of a user interface, an aiming screen as shown in FIG. 3 is displayed and an operation is performed. Displays software buttons and information output screen required for the left / right or bottom of the screen.

Here, the information output screen is a screen for displaying the measured distance. The distance is measured in one-time by pressing the laser generation button (distance measurement start button). Display.

In general, since the speed of the laser does not take much time for transmission and reception because of the speed of light, there is no difficulty in real time (several msec interval) measurement, and it is more convenient because it does not require pressing a measurement start button.

On the other hand, after the laser for the distance measurement is launched, when the laser is received through the laser receiver 102, the modem controller (not shown, MSM) calculates the distance based on the reception time and displays it at a predetermined position of the aiming screen. .

As described above, the present invention aims at a target object (point) to be measured by using a camera of the mobile communication terminal, and automatically fires a laser in real time or manually by a button input to measure the distance to the LCD screen of the terminal. To display.

As described above, the apparatus and method for measuring distance using a laser of the mobile communication terminal of the present invention attaches a laser transmitting / receiving device to a camera-type mobile communication terminal and utilizes the camera as an aiming device to apply the laser to an object photographed by the camera. It is effective to calculate and display the exact distance to the object photographed by the camera at the time when the laser beam is reflected and returned.

Claims (8)

A laser generator which is controlled through a user's menu operation to fire a laser; A laser receiver for receiving the fired laser; A camera disposed on the same plane as the laser generator and the laser receiver; A modem controller which controls the laser generator and the laser receiver, and calculates a distance from a laser reception time; And an LCD screen displaying the measured distance calculated by the modem controller. The method of claim 1, When the mobile communication terminal is switched to the distance measurement mode by the user's menu operation, a distance using the laser of the mobile communication terminal is displayed on the LCD screen, in which an aiming screen coincides with the laser firing direction. Measuring device. The method of claim 2, And the aiming screen displayed on the LCD screen is corrected and displayed by a distance (a few millimeters) between the camera and the laser generation unit. Selecting a distance measurement menu from a user and displaying an aiming screen of an object; Calculating a distance by automatically or manually firing a laser for distance measurement according to a preset distance measuring method; Displaying the calculated distance at a predetermined position on an aiming screen; The displaying of the aiming screen may include: The distance measuring method using the laser of the mobile communication terminal, characterized in that the step of correcting and displaying the distance between the camera and the laser generating unit. The method of claim 4, wherein The aiming screen is a distance measuring method using a laser of the mobile communication terminal, characterized in that configured to output the software button and information output screen necessary for the operation on the left / right or bottom of the screen. The method of claim 4, wherein The distance measuring method includes a manual method in which the user measures the laser generation button (distance measurement start button) one-time measurement and an automatic method of measuring the center portion of the aiming screen in real time (several msec intervals). Distance measuring method using a laser of the mobile communication terminal. The method of claim 4, wherein The aiming screen is displayed by correcting the distance by a distance (a few millimeters) from the camera and the laser generator so that the center portion thereof indicates a point where the distance measuring laser is reflected on the object, and is distinguished from the camera input image. A distance measuring method using a laser of a mobile communication terminal, characterized in that to display on a separate OSD (On Screen Display) screen. The method of claim 4, wherein The aiming screen is a distance measuring method using a laser of a mobile communication terminal, characterized in that to display a target mark for shooting.

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