JP2010044607A - Alarm device of proximity to screen - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display or a control device for automatically issuing an alarm after continuously watching a screen of a television receiver or a game machine for a long while at a close range. <P>SOLUTION: An alarm device of proximity to a screen includes a distance measurement means for detecting a distance up to a human body present within a predetermined range in front of a display; and an alarm control means for issuing an alarm when the measured distance detected by the measured means becomes shorter than a preset limit distance. Then, the alarm device calls attention to keep watching the screen of the display at the close range. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to a control function for preventing an adverse effect of continuously watching a screen of a display device of a television or game machine at a short distance for a long time.

It has been said that if the screen of a display device of a television or game machine is viewed at a short distance for a long time, the visual and thought forms may be disturbed, but it may be too close to the screen.
Patent Document 1 discloses a visual acuity table that describes precautions, advertisements, and advertisers when playing a video game or the like. The technology described in this document relates to a manual for multimedia video game play, educational activities, etc., illnesses caused by the manual, countermeasures, advertisements, universal vision charts describing advertisers, and short-range vision charts. It is.

JP-A-7-255670

Conventionally, for example, in order to prevent a child from continuing to watch the screen of a display device of a television or a game machine at a short distance for a long time at home, the parent or the like is constantly monitoring and the distance is too short It was necessary to be careful, and in some cases it was necessary to turn off the TV or pick up the game console.
In either case, there are problems such as the time and effort required of the parents and the fact that they cannot be completely monitored and the problem that the child's own ability to restrain himself cannot be nurtured.

Accordingly, an object of the present invention is to provide a display device or a control device that can automatically issue an alarm when a screen of a display device of a television or game machine is continuously viewed over a long time at a short distance. It was made.

A screen approach alarm device according to claim 1 of the present invention is provided.
Distance measuring means for detecting a distance to a human body existing in a predetermined range in front of the display device;
By providing alarm control means for outputting an alarm when the measurement distance detected by the distance measurement means is less than or equal to a preset limit distance, to continue to view the screen of the display device at a short distance It is configured to call attention.
In the invention of claim 2,
The alarm control means is configured to output an alarm when the measured distance is continuously equal to or longer than a predetermined set time and equal to or less than the limit distance.
In the invention of claim 3,
The alarm control means is configured to display characters or figures that call attention on the screen of the display device.
In the invention of claim 4,
The alarm control means controls so as to reduce the brightness of the screen of the display device.
In the invention of claim 5,
The alarm control means includes sound output means for outputting a sound for calling attention.
In the invention of claim 6,
The alarm control means includes power control means for turning off the power of the display device.
In the invention of claim 7,
The distance measuring means irradiates at least one of far infrared rays, radar waves, and ultrasonic reflections in front of the display device, and detects a reflected wave from a human body existing in a predetermined range in front of the display device. Is configured to detect the distance to the human body.
In the invention of claim 8,
The distance measuring means is installed on the floor or ceiling in front of the display device.

According to the screen approach alarm device according to claim 1 of the present invention,
Detect the distance to the human body that is in a predetermined range in front of the display device,
When the detected measurement distance is less than or equal to the preset limit distance, an alarm is output to remind the user to keep watching the display screen at a short distance. It is possible to prevent the screen from being continuously viewed for a long time at a short distance.
In the second aspect of the invention, an alarm is output when the measured distance is continuously longer than or equal to a predetermined set time, and the alarm is not output when only passing in front of the display device.
In the invention of claim 3, since a character or a graphic for calling attention is displayed on the screen of the display device, it can be surely noticed.
In the invention of claim 4, since the brightness of the screen of the display device is lowered, the visual effect can be reduced.
According to the fifth aspect of the present invention, since a voice for calling attention is output, the user can be surely noticed.
In the invention of claim 6, since the power source of the display device is turned off, it can be surely noticed.
In the invention of claim 7,
The distance measuring means irradiates at least one of far infrared rays, radar waves, and ultrasonic reflections in front of the display device, and detects a reflected wave from a human body existing in a predetermined range in front of the display device. Since the distance to the human body is detected by this, it can be configured by widely spread technology, and the price of the screen approach alarm device can be reduced.
In the invention of claim 8,
Since the distance measuring means is installed on the floor or ceiling in front of the display device, the human body in front of the display device can be reliably detected.

Below, the screen approach warning device concerning the present invention is explained in detail based on a drawing which showed the embodiment.
In FIG.
Reference numeral 1 denotes a display device of a television or game machine. Reference numeral 2 denotes a television receiver or a game console main body. In the case of a game machine, an operation unit (not shown) such as a controller is connected to the main body unit 2. Reference numeral 3 denotes a screen approach alarm device according to the present invention.
As shown in FIG. 2, the screen approach alarm device 3 includes a distance detection unit 4 as a distance measurement unit using various physical principles and methods, an alarm determination unit 5 and an alarm output unit as an alarm control unit. 6 is included.

In the case of the screen approach alarm device 3 of Example 1,
The distance detection unit 4 can use various technologies. For example, in the first embodiment, the far-infrared ray in the form of a pulse is emitted toward the front, and the infrared ray is emitted from the front of the human body. When reflected, the distance to the human body is measured by measuring the timing of receiving the reflected wave. As will be described later, the distance can be detected by other methods.

  The alarm determination unit 5 compares the measurement distance to the human body measured by the distance measurement unit 4 with a predetermined limit distance set in advance, and activates the built-in timer 51 when the distance is less than the limit distance. To start measuring elapsed time. If the measured distance exceeds the limit distance during the elapsed time measurement, the built-in timer 51 is reset. If the built-in timer 51 is not reset until a preset time limit elapses without the measurement distance exceeding the limit distance, it is determined that an alarm should be issued, and an alarm determination signal is output. To do.

The alarm output unit 6 receives an alarm determination signal output from the alarm determination unit 5;
A warning by voice such as “Too close to the screen! Please leave!” Is issued from the speaker 61, or the warning characters and the warning light 62 are controlled to blink to warn that the distance to the screen is too close.
In this way, even if the user approaches too unconsciously, the screen approach warning device 3 issues a warning, so that the person who was looking at the screen of the display device 1 keeps watching from a short distance for a long time without noticing. Can be prevented.

In the above description, the distance detection unit 4 measures the distance based on far-infrared reflected light. For example, the distance detection unit 4 emits an ultrasonic wave toward the front, and the ultrasonic wave is transmitted. When reflected on the surface of the human body in front, the distance to the human body may be measured by measuring the timing of receiving the reflected wave.
In this way, it is possible to detect the distance to the human body by irradiating various kinds of light, sound waves, electromagnetic waves or the like toward the front and measuring their reflected waves.
In addition, the built-in timer 51 outputs an alarm when the screen is continuously viewed within the limit distance for a preset limit time or longer, so that it passes within the limit distance such as passing near the screen. When the time spent is short, no alarm is output and appropriate alarm judgment is possible.

As shown in FIG. 3, the screen approach alarm device 23 according to the second embodiment is provided with an electric resistance type or capacitance type detection switch 24 on the floor surface in front of the display device 1 as a distance measuring unit. When the human body comes to the detection area of the detection switch 24, an alarm determination signal is output from the alarm determination unit 25. Since the alarm output unit 26 can have the same configuration as the alarm output unit 6 described above, a detailed description thereof is omitted.

As shown in FIG. 4, the screen approach alarm device 33 according to the third embodiment includes a pyroelectric infrared sensor 34 in an upper space (such as a ceiling) in front of the display device 1, and the human body is pyroelectric. An alarm determination signal is output from the alarm determination unit 35 when the detection area of the infrared sensor 34 (area indicated by a broken line) is reached. Since the alarm output unit 36 can have the same configuration as the alarm output unit 6 described above, a detailed description thereof is omitted. In this case, the detection area corresponds to an area within a limit distance.

As shown in FIG. 5, the screen approach alarm device 43 according to the fourth embodiment includes a screen control circuit 431 in the alarm output unit 46, and detects that the distance measuring unit 44 has approached too much. Similarly to the above, if the built-in timer is not reset until a predetermined elapsed time, an alarm determination signal is output from the alarm determination unit 45, and the screen control circuit 431 displays a warning message such as “You are too close to the screen! Display data for displaying the sentence is generated and displayed on the screen of the display device 1.
Alternatively, the screen control circuit 431 may control the video circuit of the display device 1 together with the sound warning as described above to reduce the screen brightness or turn off the screen display. Good. By controlling the screen in this way, it is unavoidable to move away from the screen, so it is possible to prevent the adverse effect of continuing to watch from a close distance.

In the fifth embodiment, in the case of a television receiver, the reception channel may be forcibly switched to another channel.

As shown in FIG. 6, the screen approach alarm device 63 of the sixth embodiment includes a power supply control circuit 631 in the alarm output unit 66, and detects that the distance measuring unit 64 is too close, Similarly, if the built-in timer is not reset until a predetermined elapsed time, an alarm determination signal is output from the alarm determination unit 65, and the power control circuit 631 turns off the power of the display device 1 or the reception unit or the main body 2. To do.
In this case, it may be controlled so that the power cannot be turned on again until a predetermined set time has elapsed. By controlling the power supply to be turned off in this way, it is possible to prevent the adverse effect of continuously watching from a short distance for a long time.

In the above embodiment, the screen approach alarm devices 3, 23, 33, 43, and 63 can be incorporated in the main body 2. In the case of a built-in screen approach alarm device, the devices are integrated and no mutual connection is required outside.
A screen approach alarm device that can be retrofitted as a separate device without including the screen approach alarm device in the main body 2 can be provided.
In this case, it is preferable to provide a lock mechanism that covers the connection portion so that the interconnection with the display device 1 and the main body portion 2 is not easily released.
In the eighth embodiment, as shown in FIG. 7, the screen approach alarm device 83 different from the normal display device 1 and the main body 2 is configured to be retrofitted to the conventional display device 1 and the main body 2.
The screen approach alarm device 83 in this case includes various types of distance measuring means as described above, an alarm determination unit, an alarm output unit, and a connection unit 831 for the display device 1 and the main body unit 2. Yes.
The connection unit 831 is, for example, an outlet for inserting a power plug of the normal display device 1 and the main body unit 2, a display signal input terminal of the normal display device 1, and a display signal output terminal of the main body unit 2. A connector for connection is provided.
The outlet for inserting the power plug of the conventional display device 1 and the main body 2 may be provided with a lock mechanism 832 with a locking mechanism so that the power plug cannot be easily pulled out and replaced with another outlet.

It is the block diagram which showed the structure of embodiment of the screen approach alarm apparatus concerning this invention. 1 is a block diagram of a screen approach alarm device according to Embodiment 1. FIG. It is a block diagram of the screen approach warning device concerning Example 2. It is a block diagram of the screen approach warning device concerning Example 3. It is a block diagram of the screen approach warning device concerning Example 4. FIG. 10 is a block diagram of a screen approach warning device according to a sixth embodiment. FIG. 10 is a block diagram of a screen approach alarm device according to an eighth embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Main-body part 3 Screen approach alarm apparatus 4 Distance measurement means, distance detection part 5 Alarm control means 5 Alarm judgment part 6 Alarm output part

Claims (8)

Distance measuring means for detecting a distance to a human body existing in a predetermined range in front of the display device;
By providing alarm control means for outputting an alarm when the measurement distance detected by the distance measurement means is less than or equal to a preset limit distance, to continue to view the screen of the display device at a short distance A screen approach warning device characterized by being configured to call attention. 2. The screen approach alarm according to claim 1, wherein the alarm control unit is configured to output an alarm when the measured distance is continuously equal to or less than the limit distance for a predetermined set time or longer. apparatus. 3. The screen approach alarm device according to claim 1, wherein the alarm control unit displays a character or a graphic for calling attention on the screen of the display device. 4. 3. The screen approach alarm device according to claim 1, wherein the alarm control unit performs control so as to reduce a screen brightness of the display device. 5. The screen approach alarm device according to claim 1, wherein the alarm control unit includes a voice output unit that outputs a voice for calling attention. 6. The screen approach alarm device according to claim 1, wherein the alarm control unit includes a power control unit that turns off the power of the display device. The distance measuring means irradiates at least one of far infrared rays, radar waves, and ultrasonic reflections in front of the display device, and detects a reflected wave from a human body existing in a predetermined range in front of the display device. The screen approach alarm device according to any one of claims 1 to 6, wherein the screen approach alarm device is configured to detect a distance to a human body. The screen approach alarm device according to any one of claims 1 to 6, wherein the distance measuring means is installed on a floor or a ceiling in front of the display device.

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