KR20010094204A - Control device and method for stand-by state in monitor using camera - Google Patents

Abstract

PURPOSE: A device and method for controlling a waiting status of a monitor using a camera are provided to supply a preferable PC environment to a user by checking an existence of a user using image data of a frame unit scanned using the camera and controlling an insertion to a power saving mode or a screen saver condition in accordance with the checking result. CONSTITUTION: A camera(201) scans image data to motion information of a user. A monitor micro computer(202) outputs the scanned motion information through a PSD line(picture sampling data line) by sampling the scanned motion information, and controls a conversion of the monitor status in accordance with an input of a power saving mode or a screen saver signal through the PSD line. A PC micro computer(203) is connected with the monitor micro computer(202) through a PSD line(206) and receives sampling data and compares the data and outputs a saving mode or a screen saver control signal to the monitor micro computer(202) in accordance with the comparing result. A memory(204) stores sampling image data being inputted to the PC micro computer(203).

Description

Control device and method for controlling the standby state of a monitor using a camera {{control device and method for stand-by state in monitor using camera}

The apparatus and method for controlling a monitor standby state using a camera according to the present invention, in particular, uses a camera installed on the front of a monitor to check a user's movement and automatically switch the monitor to a power saving mode or a screen saver state. An apparatus for controlling a standby state of a monitor and a method thereof are provided.

The standby state control device of the conventional monitor is shown in Figure 1,

A keyboard 101 for inputting a user's key signal and a memory 102 for storing setting data for a display power management (DPM) or a screen saver set through the keyboard 101. ), A counter 103 for counting the time set by the user, and data stored in the memory 102 by recognizing a key signal through the keyboard 101 may coincide with the time data input from the counter 103. In the case of the power saving mode according to the PC microcomputer 104 for outputting the power saving mode control signal as a horizontal and vertical synchronization signal (H-Sync) (V-Sync) and the horizontal and vertical synchronization signals applied from the PC microcomputer 104. Or a monitor microcomputer 105 for switching to the screen saver state.

Figure 2 is a conventional method for controlling the standby state of a monitor, the operation procedure in the PC is as follows.

(a) reading the power save mode or screen saver setting data stored in the memory 102 and determining whether it is time to set the power save mode;

(b) outputting a power saving mode setting signal when the power saving mode setting time has elapsed after step (a);

(c) initializing the counter 103 after step (b) and determining whether there is a key signal input;

(d) determining whether the power saving mode setting data is present when the key signal is input, and as a result, changing the power saving mode setting data when the power saving mode setting signal is output, and outputting the power saving mode setting signal when the power saving mode setting signal is not present. do.

3 is a diagram illustrating a procedure of a monitor in the standby state control method of a conventional monitor.

Referring to FIG. 3, when the power saving mode or the screen saver setting signal is input from the PC, the monitor is switched to the power saving mode or the screen saver state, and when the power saving mode or the screen saver setting signal is not input, the monitor is kept in the normal state. .

Hereinafter, an apparatus and method for controlling a standby state of a conventional monitor will be described in detail with reference to the accompanying drawings.

First, the PC microcomputer 104 outputs horizontal and vertical synchronization signals (H-Sync) (V-Sync) to the monitor microcomputer 105 when the monitor is in a normal state.

Then, for the power saving mode or the screen mode, the PC microcomputer 104 reads the setting data for the power saving mode or the screen saver from the memory 102 when there is no key signal from the keyboard 101 from the user. It is determined whether the data and the time set in the counter 103 match. As a result of the determination, if the two data match, the power saving mode setting signal is output to the monitor microcomputer 105. That is, it does not output the horizontal and vertical synchronization signals (H-Sync) (V-Sync) to the monitor.

Then, the monitor microcomputer 105 determines whether the power saving mode setting signal is input, and if the power saving mode setting signal is input, switches the monitor state to the power saving mode or the screen saver state. Alternatively, the screen saver can be released and returned to normal state.

On the other hand, when a key signal is input through the keyboard 101, the PC microcomputer 104 does not output the power saving mode or the screen saver setting signal, and if the key signal is the setting data for the power saving mode or the screen saver, the power saving mode or the screen saver. The saver data is changed and stored in the memory 102.

The standby state control method of the monitor will be described in detail with reference to FIGS. 2 and 3 as follows.

Referring to FIG. 2, the power saving mode setting data stored in the memory 102 is read (S101), and it is determined whether the power saving mode setting time has come (S102). If the power saving mode setting time is determined, the power saving mode or screen saver setting signal is output (S103), the counting time is initialized to the counter 103 (S104), and the user inputs the key signal through the keyboard 101. It is determined whether or not the input (S105).

At this time, when the key signal is input, it is determined that the key signal is the power saving mode setting data without outputting the power saving mode or the screen saver setting signal. If the key signal is the power saving mode setting data, the power saving mode setting data is changed (S106, S107). .

3, when the power saving mode setting signal is input from the PC microcomputer 104, the monitor state is switched to the power saving mode (S111, S112). It will be maintained (S113).

However, the screen saver or power saving mode that operates after a certain period of time when the user is not using the PC does not perform a phone call, watch a movie, or enter a separate key even when the user is actually using the PC. After a period of time, it automatically enters power saving mode or screensaver state. Frequently in the standby state, there was a problem that the user is inconvenient in use by repeating unnecessary operations.

The present invention has been made to solve the above-described problems, and after checking the presence or absence of the user with the image data of a predetermined frame unit scanned using a camera, enters the power saving mode or screensaver state according to the result. It is an object of the present invention to provide an apparatus for controlling a standby state of a monitor using a camera and a method of controlling the same, which can provide a better PC using environment to the user.

1 is a block diagram showing a standby state control apparatus of a conventional monitor.

Fig. 2 is a flow chart showing an operation procedure in a PC in the standby state control method of a conventional monitor.

3 is a flow chart showing the operation procedure in the monitor in the standby state control method of the conventional monitor.

Figure 4 is a block diagram showing an embodiment of an apparatus for controlling a standby state of a monitor using a camera according to the present invention.

5 is a flowchart showing an embodiment of a method for controlling a standby state of a monitor using a camera according to the present invention;

6 is a flowchart showing an operation procedure in a PC in the embodiment of the method for controlling the standby state of a monitor using a camera according to the present invention.

7 is a flowchart showing an operation procedure of the monitor in the embodiment of the method for controlling the monitor standby state using the camera according to the present invention.

<Explanation of symbols for the main parts of the drawings>

101 ... Keyboard 102,204 ... Memory

103 ... Counter 104,203 ... PC Micom

105,202 ... Monitor MICOM 201 ... Camera

In order to achieve the above object, a standby state control apparatus of a monitor using a camera according to the present invention,

A camera that scans user's motion information into image data,

A monitor micom that samples the scanned image data and outputs the same through a PSD line and controls switching of a monitor state according to whether a power saving mode or a screen saver signal is inputted through the PSD line;

A PC microcomputer connected to the monitor microcomputer and the PSD line to receive sampled image data, comparing the image data with each other, and outputting a power saving mode or a screen saver control signal to the monitor microcomputer according to the result;

And a memory for storing the sampled image data.

The PC microcomputer according to the present invention is characterized by deleting image data stored in the memory after outputting a power saving mode or a screen saver signal to the monitor.

According to the present invention, the monitor microcomputer receives a predetermined frame every second and is characterized by sampling each frame to a specific point.

The standby state control method of the monitor using a camera according to the present invention,

(a) receiving the image data scanned by the camera and sampling the data into a predetermined number of image frames;

(b) sequentially receiving the sampled image data and comparing them to determine whether the image data are identical;

(c) outputting a power saving mode or screen saver setting signal if the image data match, and switching the monitor to a power saving mode or screen saver state, and maintaining the monitor in a normal state if the image data does not match. Characterized in that.

In addition, the sampling step according to the present invention is characterized in that for receiving a user's motion information in a predetermined frame unit per second (sample) and sampling each frame to a specific point (point).

According to the present invention, the determining of whether the image data is matched may include determining whether to match by periodically comparing a predetermined frame sampled with a certain piece of data.

Hereinafter, with reference to the accompanying drawings as follows.

Figure 4 is a block diagram showing an embodiment of a standby state control apparatus for a monitor using a camera, Figure 5 is a flow chart showing an embodiment of a standby state control method of a monitor using a camera, Figure 6 is a monitor using a camera In the embodiment of the standby state control method, a flowchart showing an operation procedure in a PC is shown. FIG. 7 is a flowchart showing an operation procedure in a monitor according to an embodiment of a monitor standby state control method using a camera.

Referring to FIG. 4, a camera 201 scanning image data of a user's motion information, and the scanned motion information are sampled and output through a PSDS (PictureSampling Data Line) 206 and through a PSD line. The monitor microcomputer 202 that controls the switching of the monitor state according to whether the power saving mode or the screen saver signal is input or not, and the sampled data connected to the monitor microcomputer 202 and the PSD line 206 are received. And a PC microcomputer 203 for outputting a power saving mode or screen saver control signal to the monitor microcomputer 202 according to the result, and a memory 204 for storing sampled image data input to the PC microcomputer 203. ) Is a configuration that includes.

Referring to the apparatus for controlling the standby state of the monitor using the camera according to the present invention configured as described above and a control method thereof are as follows.

First, the monitor microcomputer 202 receives image data of the user's motion information from the camera 201 through a data line (ie, USB, serial / parallel port) 205, and Image data is sampled into specific data every frame. The sampled image data is output to the PC microcomputer 203 connected by the PSD line 206.

Upon receiving the sampled image data, the PC microcomputer 203 stores the input image data in the memory 204 and checks whether the sampled image data matches with each other to determine whether a moving object exists.

That is, when sampling image data D _n , D _{n + 1} ,..., D _{n + n of} moving objects is input, the image data is compared in a predetermined frame unit, and as a result, if all are the same, D _{If n} = D _{n + 1} =..., D _{n + n} ), the user does not exist, and thus the power saving mode or screen saver setting signal is sent to the monitor microcomputer 202 through the PSD line 206. At this time, when the power saving mode or the screen saver setting signal is output, the sampled motion information stored in the memory 204 is deleted.

Here, the image data D _n , D _{n + 1} ,..., D _{n + n} represent the entire data sampled in each frame.

If any one of the stored data D _n to D _{n + n} is not the same, the user is present, and thus the power saving mode or the screen saver setting signal is not transmitted to the monitor microcomputer 202. At this time, if the data do not coincide with each other, the sampled motion information stored in the memory 204 is deleted, so that the next comparison data can be stored.

The monitor micom 202 that receives the power saving mode or the screen saver setting signal from the PC microcomputer 203 switches the monitor state to the power saving mode or the screen saver state, and the power saving mode or the screen saver setting signal is not input. The monitor returns to normal.

Such a procedure for controlling the monitor standby state will be described in detail with reference to FIGS. 5 to 7.

First, referring to FIG. 5, the monitor micom 202 receives image data of a user scanned at a constant speed (frame / second) from the camera 201 installed in front of the monitor (S201), and the scanned image data. Is sampled as data in a predetermined point unit (point / frame) (S202).

After receiving the image data sampled after the step S202 from the PC microcomputer 203, the image data are compared (S203), and the result of the comparison determines whether the image data match (S204).

As a result of the determination in step S204, if the image data matches, the monitor state is switched by setting to a power saving mode or a screen saver (S205). If the image data does not match, the monitor is maintained in a normal state (S206).

This will be described in detail with reference to FIGS. 6 and 7.

As shown in FIG. 6, image data is input from the camera 201 at a rate of a predetermined frame per second (S211), and the image data is sampled at a rate of a specific point per frame (S212). The image data sampled in step S212 is output to the PC microcomputer 203 through the PSD line 206 (S213).

Thereafter, it is determined whether the power saving mode or the screen saver setting signal is input from the PC microcomputer 203 (S214). When the power saving mode or the screen saver setting signal is input, the monitor switches to the power saving mode or the screen saver state. If the power saving mode or the screen saver setting signal is not input (S215), it is maintained in the normal state (S216).

As shown in FIG. 7, the sampled image data output to the PSD line 206 in step S213 of FIG. 6 is received by the PC microcomputer 203 and stored in the memory 204 (S221). It is determined whether (D _n , D _{n + 1} , ..., D _{n + n} ) matches, where the data D _n = D _{n + 1} = ·· = D _{n + n} matches the PSD line The power saving mode or screen saver setting signal is outputted through step 206 in step S214 of FIG. 6.

After the power saving mode or the screen saver setting signal is output in step S223 or when the data do not match in step S222, the sampled image data in the memory is deleted (S224).

As described above, the user's movement information is scanned and detected in real time using the camera 201 in an environment such as a movie viewing where a monitor can be used without a keyboard or mouse or a telephone call without using the monitor for a while. By sampling the detected values in a certain unit and comparing them to determine whether the user moves, the monitor automatically switches to the power saving mode or the screen saver state according to the presence or absence of the user, or the power saving mode or the screen saver state. To release it.

Referring to a specific embodiment of the present invention, the monitor microcomputer 202 receives image data at a rate of one frame per second (1 frame / sec) through the camera 201 and then performs sampling to 100 data per frame. do. The sampled image data is output to the PC microcomputer 203 through the PSD line 206.

At this time, the PC microcomputer 203 checks whether the power saving mode or the screen saver setting signal is output, and as a result, converts to the power saving mode or the screen saver state when the power saving mode or the screen saver setting signal is output.

However, when the power saving mode or the screen saver setting signal is not output, the PC microcomputer 203 compares the image data input from the monitor microcomputer 202 in five cycles. That is, the seventh frame (D ₇ = all of the sampled data of the seventh frame) and the next incoming frame (D _{7 + 1} , D _{7 + 2} , D _{7 + 3} , D _{7 + 4} ) are compared with each other. It is determined whether or not a match.

As a result of the determination, if all five frames to be compared match D ₇ = D _{7 + 1} , = D _{7 + 2} , = D _{7 + 3} and = D _{7 + 4,} the user does not exist. If the setting signal is output to the monitor microcomputer 105, and if it does not match, the user does not output the power saving mode or the screen saver setting signal to the monitor microcomputer 105, and the monitor operates in the normal operation state.

On the other hand, according to another embodiment of the present invention, the user can switch to the power saving mode or screen saver with and without the operation of the keyboard or mouse, and to the power saving mode or screen saver with or without the user using the camera described above With the switching function, the user can optionally set the DPM mode to any one.

As described above, the present invention allows the user to keep the computer system in a normal state by checking the sensitive operation of the user when using the PC without operating the keyboard or the mouse, and immediately when the user leaves the office for urgent business. By switching to a power saving mode or a screen saver state, it is effective to maintain security and save power.

In addition, since the power saving mode is automatically set and released, there is an effect that the user's PC environment can be more conveniently provided.

Claims (6)

The camera scanning image data of the user's motion information, the scanned image data are sampled and output through the PSD line, and whether or not the power saving mode or the screen saver signal is input through the PSD line. According to the result, the monitor micom that controls the switching of the monitor state and the sampled image data connected to the monitor micom and the PSD line are inputted, and the image data are compared with each other. And a PC microcomputer for outputting and a memory for storing the sampled image data. The method of claim 1, The monitor microcomputer receives the input in a unit of a predetermined frame per second, standby state control device for a monitor using a camera, characterized in that for sampling each frame divided into a specific number. The method of claim 1, The PC microcomputer is stored in a memory for comparing the data sampled through the camera, and after the comparison, the standby state control apparatus for a monitor using a camera, characterized in that for deleting the sampled data. (a) sampling the predetermined data into image data scanned by the camera; (b) sequentially receiving and storing the sampled image data and comparing the stored data to determine whether the image data is identical; (c) outputting a power saving mode or screen saver setting signal if the image data matches, and switching the monitor to a power saving mode or screen saver state; and maintaining the normal state of the monitor if the image data does not match. Method for controlling the standby state of the monitor using a camera, characterized in that. The method of claim 4, wherein The sampling step is a method for controlling the standby state of a monitor using a camera, characterized in that for receiving a user's movement information in a predetermined frame per second, each frame is sampled to a specific point. The method of claim 4, wherein The image data stored in the memory for the comparison is deleted after the comparison step so that the new image data can be stored standby control method for a monitor using a camera.