WO2005104080A1

WO2005104080A1 - Visual range informing device

Info

Publication number: WO2005104080A1
Application number: PCT/JP2005/007494
Authority: WO
Inventors: Hiroshi Tahara; Junichi Yamanouchi
Original assignee: Eye Power Sports Corporation
Priority date: 2004-04-19
Filing date: 2005-04-13
Publication date: 2005-11-03
Also published as: JP3104709U

Abstract

A visual range informing device being added to an electronic apparatus for processing information and having an electronic screen for displaying the results, wherein provided is a distance sensor arranged at the frame of the electronic screen to constantly detect the distance between the electronic screen and the face of a person operating the electronic apparatus while facing the screen. A comparing section compares a detected distance with a predetermined numeric value and delivers a signal alarming the possibility of becoming shortsighted if the detected distance is shorter than the predetermined numeric value. Upon receiving the alarm signal, an alarming section delivers an alarm toward the person by means of sound and light emission. A device in which an electronic apparatus itself monitors the distance from a person using the electronic apparatus to the electronic screen constantly and calls the person’s attention is provided.

Description

Description Viewing distance notification device Technical field

The present invention relates to a viewing distance notification device for an electronic display device, and more particularly to a viewing distance notification device that is used by a user of an electronic device during use. Background art

In recent years, computer training has been adopted in elementary and junior high school education, and developing young people have more time to interact with personal computers. In the workplace, it is common to work for a long time at a personal computer. As for the workplace, the visual distance between the electronic screen and the eyes should be 40 cm.

Focusing on an electronic screen, such as a vasicon, causes eyestrain and blurred text on the screen, which inevitably causes the face to approach the screen. In this state, focusing on the screen forced the eyes to undergo extreme accommodative tension, and there was a problem that pseudo-myopia was apt to occur when the subject was kept close to the subject. This is a major contributor to myopia in developing adolescents and, in adults, eye fatigue.

In recent years, young people have been encouraged to use bathocons in schools and homes for the purpose of early understanding of advanced artificial intelligence knowledge and for such ideas and development.

On the other hand, even if you look into the PC screen and bring your face close to the screen without your knowledge, the person who is obsessed with learning and work often does not notice.

Working on electronic screens such as mobile phones, portable game consoles and electronic terminals, e-books, calculators, and various types of personal computers. I always had myopia without knowing it.

Teachers and parents sometimes take care to keep children at the correct distance from the screen, but there are limits to constantly monitoring and alerting young people. Even ordinary people Even if the visual distance between the child screen and the eyes was shorter than 40 cm, the posture collapsed even if it was far or far away, the burden on the spinal cord, and the risk of disc herniation was not small (see the “VDT work labor” above). Sanitary practice ”).

As the knowledge society promotes the use of bathocons and the like, undesired side effects such as a decrease in the visual acuity of adolescents have occurred, which has become a social problem. In addition, the more people who work, the more they face electronic devices, and the importance of eyesight health management is increasing. However, there has been no known visual distance notifying device capable of maintaining a reference distance of 40 cm even in such a situation.

According to the present invention, an electronic device such as a personal computer used automatically reports the distance between the electronic screen and the user's eyes, and the visual acuity caused by the user's eyes approaching the display screen and passing too far. The purpose of the present invention is to provide a device that prevents deterioration of the eye, short-sightedness and poor posture, and prevents poor posture due to too far away.In the case of already short-sighted eyes, the purpose is to clarify the change in the degree as data. . Disclosure of the invention

The present invention has been made to solve the above-mentioned problem. In the invention of claim 1, a distance sensor for detecting a distance between two objects, a memory for recording the detected distance, and An electronic timepiece, comparing the detected distance with a predetermined numerical value, and outputting a warning signal when the distance is smaller than the predetermined numerical value; This device is a visual distance notification device that is composed of a 务 element part of a warning unit that issues a warning by sound and light emission to humans and is arranged near the display screen of an electronic device that processes information.

According to the second aspect of the present invention, each of the element units is stored and shaped in a box shape separate from the electronic device, and is detachably attached to a frame edge of the display screen to operate the electronic device. An approximate distance between a human face and the display screen.

According to the third aspect of the present invention, each of the element parts is embedded and stored in the frame of the display screen of the electronic device when the electronic device is manufactured, and a human face that operates the electronic device. A device for approximately detecting a distance between the display screen and the display screen. ' According to the fourth aspect of the present invention, each of the element parts is stored in a container separate from the electronic device, and the container is further stored in a decorative ornament to allow a person who operates the electronic device to operate the electronic device. An apparatus for approximately detecting a distance between a face and the display screen.

In the invention according to claim 5, the distance sensor calculates the distance from an ultrasonic wave emitted from one of the two objects and an ultrasonic wave reflected from the other object, or emits the ultrasonic wave from the other object. One of an infrared sensor that detects the infrared ray detected by one object to calculate the distance, and an electronic camera that calculates the distance by detecting visible light reflected from the other as image data and calculating the distance. An apparatus characterized in that:

The invention according to claim 6 is characterized in that the warning unit includes a voice generation unit that receives the warning signal and emits a voice, and a light emitter that receives the warning signal and emits light electronically. Device.

The invention of claim 7 is characterized in that the detected distance recorded by the memory in the memory is readably stored in association with the time of the electronic clock unit. The invention according to claim 8, wherein the sound generation unit includes a speaker and emits a sound for warning that the person is too close to the person, and the illuminant is a symbol, a character, or a color. It is.

According to the ninth aspect of the present invention, the sound generator and the speaker are provided in advance in the electronic device, and the illuminant is the electronic screen provided in the electronic device in advance. It is a characteristic device. Brief Description of Drawings

FIG. 1 is a diagram showing the overall configuration of a viewing distance notification device for an electronic display device of the present invention, and FIG. 2 is a diagram showing an ultrasonic circuit diagram of the viewing distance notification device of the present invention. FIG. 3 is a diagram showing a circuit diagram of an infrared type of the viewing distance notification device of the present invention, and FIG. 4 is a diagram showing a circuit diagram of an electronic camera type of the viewing distance notification device of the present invention. FIG. 6 is a schematic view of a separate type of viewing distance notification device for the electronic display device of the present invention. FIG. 6 is a front view of various embedded types of the viewing distance notification device for the electronic display device of the present invention. The figure shows the operation of the electronic display device of the present invention. 6 is a time chart for explaining FIG. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. First, FIG. 1 illustrates an embodiment of a viewing distance notification device for an electronic display device according to the present invention using an electronic screen of a desktop computer (personal computer).

FIG. 1 shows the overall appearance of a viewing distance notification device for an electronic display device. This device uses a personal computer 1, and a viewing distance notification device 10 is provided in a frame 5 of a screen portion 4 which is a large liquid crystal electronic screen. The viewing distance notification device 10 includes a distance sensor 2 and an alarm device 3.

The distance sensor 2 of the viewing distance notifying device 10 includes an ultrasonic type, an infrared type and an electronic force type. First, the ultrasonic rangefinders are available in the market for intruder alarms, automatic switches for lights, back sonars for vehicles, automatic doors, liquid level meters, and automatic traffic signal switching devices. This rangefinder is sold, for example, by Nippon Ceramic and can be ordered on the Internet. See the NIPPON CERAMIC CO., LTD. Home page for its performance and specifications.

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Next, the infrared type uses an infrared sensor, which turns on the light suddenly when passing by in the dark, or automatically opens the door when standing at the entrance. One such device is the infrared sensor.

Infrared light is a type of light that is invisible to the human eye, is light outside the red color of the rainbow, and has a longer wavelength than light that is perceived by the human eye, and is called a heat ray because it has a greater thermal effect. In other words, since infrared rays always come out of places where there is heat, the human body emits infrared rays of a wavelength corresponding to the body temperature in the same way.

3 6. 5 C wavelength around the infrared human body radiation is infrared sensor one 6~ 14 μ πι is to concern the infrared band of width, you transmit only wavelengths of _6~14 μ ηι the front With a filter, it becomes a sensor that detects only the human body. The infrared sensor can detect a linear range, up to about 5 m. Infrared sensors can also be ordered on the Internet, and their performance and specifications are described in the home shopping guide. ぺ ^ ~

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http: //www.hs-u. cora / bouhan / chime, html

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First, the principle of the ultrasonic type of the viewing distance notification device 10 will be described in detail with reference to FIG.

The distance sensor 2 includes an ultrasonic transmitting unit 20 and a receiving unit 21. From the transmitting unit 20, a series of pulsed sound waves corresponding to the distance are emitted in order, for example, every two seconds as indicated by a dotted line. The receiving section 21 counts the number of these series of pulsed sound waves reflected from the face F of the person 13 in synchronization with the transmitting section 20. The greater the number of pulsed sound waves, the farther they are reflected, and the narrower the pulsed sound wave width, the more accurate the distance can be measured. Since the person 13 using the personal computer 1 in Fig. 1 does not suddenly approach the screen 4, it is sufficient to emit pulsed sound waves every 2 seconds, but it is also possible to shorten the interval between shots. It is possible. '

The receiving unit 21 calculates the distance D between the screen unit 4 and the face F from the number of pulsed sound waves, that is, the time difference between emission and reception, and the speed of sound waves. This distance D is recorded in the buffer memory 16, and the recorded distance D is sent to the personal computer 1 in FIG. 1 via a general-purpose USB terminal. The viewing distance notification device 10 includes a power supply 17 and is supplied with power from the computer 1 via a USB terminal. The power supply section 12 is composed of safety resistors R 1 and R 2, an electrolytic capacitor C and a battery E 0, and supplies the voltage E 0 to the distance sensor 2, the alarm device 3 and other necessary circuits. The buffer memory 16 receives time data from the personal computer 1 via the USB terminal, and the distance D is recorded in relation to time. Record this record not only on a daily basis, but also on a weekly, monthly, and semi-annual basis.

The comparison circuit 23 outputs an alarm pulse K to the alarm device 3 when the distance D becomes equal to or less than a value 40 cm set in the memory 22 in advance. The alarm device 3 includes an optical drive circuit 24 and an audio drive circuit 25. The optical drive circuit 24 generates a drive signal E2 to the red lamp 26 and sends it to the red lamp 26 by the alarm pulse K. The voice drive circuit 25 generates alarm voice data E1 and sends it to the speaker 27. Then the red lamp 26 lights up, and a warning sound such as "Beep, beep too close, keep your eyes far away" is heard from the speaker 27.

Therefore, the user becomes aware of and approaches the screen unit 4 too close. A yellow lamp and a red lamp may be provided instead of the red lamp 26, and the yellow lamp may be turned on when approaching, and the red lamp may be turned on when the distance falls below 40 cm. In addition, a blue lamp, a yellow lamp, and a red lamp are provided instead of the red lamp 26.If it is 50 cm or more, the blue lamp is turned on, and when approaching 40 cm, the yellow lamp is turned on, and 40 cm is turned on. The red lamp may be turned on when the following occurs.

In addition, the sound quality of the warning voice can be changed, such as the voice of the mother, the voice of the teacher, and the voice of the father. When the temperature falls below 40 cm, a beep sound may be sounded from the speaker 27.

Furthermore, a value of 30.cm can also be set in the memory 22 so that when the value exceeds 4Ocm and reaches 3Ocm, the speaker 27 can emit a beep sound. Next, referring to FIG. 3, the principle of the infrared type of the viewing distance notification device 10 will be described in detail.

In the case of the infrared type, when a person 13 approaches the screen section 4, infrared rays (indicated by dotted lines) of human body heat emitted from the face F are detected by the infrared sensor light receiving section 30 having a strong directivity. The detected current mA generated here becomes stronger as the human face is closer to the screen unit 4. Therefore, the average value of the data obtained by experimenting with the distance between the face F and the screen unit 4 and the intensity of the detected current with many human bodies is stored in the storage device 33 in advance.

For example, D = 60 cm for 1 mA, D = 50 cm for 2 mA, 40 cm for 3 mA, 30 cm for 4 mA, 30 cm for 5 mA, 20 cm for 7 mA, etc. I do.

Here, too, a buffer memory 16 is provided, and the detection current mA is likewise recorded in the buffer memory 16 in relation to time. Further, the average value of the data of the distance D and the detected current mA stored in the storage device 33 is previously recorded in a predetermined storage unit of the personal computer 1 similarly attached. The buffer memory 16 receives time data from the personal computer 1 via the USB terminal, and the mA data is recorded in relation to time. This record is recorded not only on a daily basis but also on a weekly, monthly, and semi-annual basis. In PC 1, which reads the detection current mA from buffer memory 16 Distance D can be determined. The power supply unit 17 is the same as the ultrasonic type, and the description is omitted.

The comparison circuit 36 compares the detection current mA with the table data of the storage device 33, and when the distance D corresponding to the detection current mA becomes 40 cm or less set in the storage device 33 in advance, When the current falls below 3 mA, the alarm pulse K is output to the optical drive circuit 24 and the audio drive circuit 25 of the alarm device 3.

Here, the infrared sensor light receiving section 30, the storage device 33, and the comparison circuit 36 constitute the distance sensor 2. As described above, the light drive circuit 24 generates the drive signal E2 by the alarm pulse K and sends it to the red lamp 26, and the sound drive circuit 25 generates the alarm sound data E1 and sends it to the speaker 27. As in the first embodiment, the red lamp 26 lights up, and the speaker 15 hears a warning sound such as "Beep, beep too close. Beware of approaching too closely.

Next, in FIG. 4, the principle of the electronic camera type of the viewing distance notification device 10 will be described in detail.

As shown in Fig. 4, the operator 1 2 sits facing the electronic camera 40 on the frame 5 of the personal computer 1 and performs his / her face F when sending an e-mail to family and friends. Will be taken at

The image size Z generated by the electronic force camera 40 becomes larger as the human face is closer to the electronic force camera 40. Therefore, the average value of the data obtained by experimenting with the distance between the face F and the electronic camera 40 and the generated image size Z with many human bodies is stored in the storage device 35 in advance. In the storage device 35 of FIG. 4, the image size Z of the face F is 2 O cm at address 1 ', 30 era at address 2 and 40 cm at address 3 in order from the electronic camera 40. By making it as far as 5 O cm at address 4, it becomes smaller in this order.

That is, the relationship between the image size Z and each distance is stored in advance, such as 20 cm at address 1, 30 cm at address 2, 40 cm at address 3, 50 cm at address 4, and the like. Since the electronic camera 40 is attached to the frame 5 of the bass computer 1 as shown in FIG. 1, the distance D is substantially equal to the distance D between the electronic camera 40 and the face F. Also, in Fig. 4, if the movement increments of addresses 1, 2, 3, 4,… are made finer, the image size Z can be grasped more precisely. Wear.

Next, the electronic camera 40 captures the latest face F of the operator at intervals of one minute, and sends the image data to the comparison circuit 36.

For near-sighted people, the face F approaches the screen 4 of the bathocon 1 and the image data of a large area is output from the electronic camera 40. Thus, the image data of the face photograph corresponding to any address of the storage device 35 is sent from the electronic camera 40 to the comparison circuit 36.

The comparison circuit 36 compares the input image data with the image size group Z in the memory 35 and outputs the distance D to the determination unit 15. The time data is supplied from the personal computer 1 to the buffer memory 16 via the USB terminal, and the data of the distance D is recorded in relation to the time. This record is recorded not only on a daily basis but also on a weekly, monthly, and semi-annual basis.

The determination unit 15 compares the received distance D with a predetermined value of 40 cm, and generates an alarm pulse K when D <40 cm. The alarm pulse K is output to the optical drive circuit 24 and the audio drive circuit 25 of the alarm device 3. The power supply unit 17 and other operations are the same as those of the ultrasonic type and the infrared type, and therefore the description is omitted.

The red lamp 26 of the alarm device 3 may be a light emitting diode, a normal light bulb, or the like. For mobile phones with small size, such as mobile phones, portable electronic terminals, and e-books, it is desirable to use the embedded type when manufacturing electronic devices. In the case of a large computer or a CRT Vasocon II large LCD screen, a new product may be embedded, but in existing electronic equipment, it may be mounted on the screen frame later, or may be a separate type. AC / DC adapters and solar cells can be used for the power supply.

Next, the operation will be described with reference to the time chart of FIG. 7 in FIG. The operator sits in front of the distance sensor 2 (PC 1),

Set to 0. The operator was working until 1 in a while, facing screen D in Fig. 1 at a distance D of about 43 cm, but his eyes gradually became tired. I have approached.

The distance sensor 2 that detects 40 cm or less outputs an alarm pulse K to the alarm device 3. For this reason, the optical drive circuit 24 of the alarm device 3 generates the drive signal E2 and sends it to the red lamp 26, and the audio drive circuit 25 of the alarm device 3 generates the alarm audio data E1. And send it to speakers 27.

The drive signal E2 lasts from T1 to T2 while the distance D is less than 4 O cm, alerting the operator. On the other hand, the alarm sound data E1 is generated once or twice when the distance D becomes 4 Ocm or less, and then re-generated once or twice in the middle if the distance D is still 4 Ocra or less, and the speaker 2 Attention sounds from 7.

Keeping the alarm sounding will cause the worker to touch the nerves and rather deepen eye fatigue, so prevent this. The operator carefully sets the distance D to 4 O cm or more. After T2, the drive signal E2 disappears, the red lamp 26 turns off, the alarm sound data E1 also disappears, and the speaker 27 is quiet. .

FIG. 5 shows a schematic view of a separately placed type. The viewing distance notifying device 10 including the distance sensor 2 and the alarm device 3 is mounted in the clock frame type 8. In this case, the distance sensor 2 may be any of the ultrasonic type shown in FIG. 2, the infrared type shown in FIG. 3, and the electronic force type shown in FIG. The table clock frame type 8 is covered with a doll's sewing wrapper 1 1 so that it can have the taste of accessories. It is also possible to make this wrapper 11 a one-character character of a popular anime or athlete.

Further, the viewing distance notification device 10 receives power from the personal computer body via a predetermined cable and a USB terminal. Furthermore, the clock frame type 8 can be provided with a plurality of new USB terminals 9. In this case, the USB terminal of the personal computer is electrically connected to the new USB terminal 9 by the cable 15. These new USB terminals 9 can be used as input / output terminals for other various peripheral devices. The separate type can be used by placing it on the side of the screen part 4 of the existing personal computer 1 and retrofitting it.

Fig. 6 shows a front view of the embedded type. The viewing distance notification device 10 including the distance sensor 2 and the alarm device 3 is embedded and mounted in the frame 5 of the screen 4 of the personal computer 1 at the time of manufacturing the personal computer. By embedding them in the center of the frame 5, the distance between the eyes of the PC user 13 and the screen unit 4) can be set more accurately.

At this time, the distance sensor 2 may be of an ultrasonic type, an infrared type or an electronic camera type.

Similarly, the visual distance notifying device 10 is simultaneously embedded in the frame 5 of the mobile phone 19 or the mobile electronic terminal 18 at the time of manufacturing.

Further, as a modified example of a separate type, as shown in FIG. It may be shaped as a flat plate (box), and attached to the upper center of the frame 5 of the screen 4 of the personal computer 1 with a detachable adhesive member. The detachable type can be attached to mobile phones and mobile electronic terminals if it is miniaturized. By attaching the distance sensor 12 at the center of the frame 5, the distance D between the eyes of the PC user 13 and the screen 4 can be set more accurately. The separate type can be retrofitted to existing Bathocon 1, mobile phones, portable game consoles, portable e-books and other portable electronic terminals. Without special human effort, it automatically prevents the user's eyes, such as a personal computer, from getting too close to or too far from the display screen. The occurrence can be prevented. It also prevents the posture from collapsing and reduces the burden on the spinal cord.

Without requiring the effort of others, computer education for young people can be promoted with peace of mind, and the health management of eyesight that changes with age can be easily and widely spread.

By reading the visual distance recorded in the memory and comparing and referencing it with the normal person, the degree of fatigue due to VDT work can be grasped and used as basic data on worker health management. Industrial applicability

It can be used as an inexpensive and simple device that informs the viewing distance of modern people, such as mobile phones, portable game machines and electronic terminals, electronic books, calculators, various personal computers, etc. . By reading the visual distance data D and the detected current value mA recorded in relation to time from the buffer memory 16 to the personal computer 1, the changes in the visual acuity of the worker can be measured on a weekly, monthly or semi-annual basis. I can know that. Therefore, it is possible to grasp any symptoms of eye fatigue and medical conditions, and to start consultation with a specialist. At the company level, it can be used to manage the health of internal VDT workers.

Explanation of symbols

1 Electronic equipment

2 Distance sensor

3 Warning section

4 Electronic screen 5 frames

6 speakers

8 Table clock frame type

9 USB terminal

10 Visual distance notification device

11 Seam wrapping ·

12 Power supply section

13 human

1 4 CPU

15 Cable

16 Buffer memory

17 Judgment section

18 Mobile devices

1 9 mobile phone

2 0 Ultrasonic transmitter

2 1 Ultrasonic receiver

2 2 memory

2 3, 3 6 Comparison section

2 4 Optical drive

2 5 Audio driver

2 6 Light emitting section

27, P speed

3 0 Infrared sensor

3 3 Storage device

D distance

F face

K warning pulse

Claims

The scope of the claims

1. A distance sensor that detects the distance between two objects, a memory that records the detected distance, and an electronic clock unit, and compares the detected distance with a predetermined numerical value. 'If the distance is smaller than the predetermined numerical value, the comparing unit outputs a warning signal, and the warning unit which receives the warning signal and issues a warning to the human by sound and light emission, and comprises: A visual distance notification device arranged near the display screen of the electronic device that processes the image.

2. Each of the elements is stored and shaped in a box shape separate from the electronic device, and is removably attached to a frame edge of the display screen, and a human face operating the electronic device and the display screen. 2. The viewing distance notification device according to claim 1, wherein a distance between the viewing distance and the distance is approximately detected.

3. Each of the elements is embedded and stored in the frame of the display screen of the electronic device at the time of manufacturing the electronic device, and is formed between the face of a person who operates the electronic device and the display screen. The viewing distance notification device according to claim 1, wherein the distance is approximately detected.

4. Each of the elements is stored in a container separate from the electronic device, and the container is stored in a decorative ornament, and a human face operating the electronic device, the display screen, and the like. 3. The viewing distance notification device according to claim 1, wherein a distance between the visual distances is approximately detected.

5. The distance sensor is an ultrasonic sensor that calculates the distance from ultrasonic waves emitted from one of the two objects and ultrasonic waves reflected from the other object, or is emitted from the other. An infrared sensor that detects infrared light with one object to calculate the distance, or an electronic force sensor that detects visible light reflected from the other object as image data and calculates the distance. The viewing distance notification device according to claim 1, wherein

6. The visual inspection device according to claim 1, wherein the warning unit includes: a voice generation unit that receives the warning signal and emits a voice; and a luminous body that receives the warning signal and emits light electronically. Distance notification device.

7. The detected distance recorded in the memory is related to the time of the electronic clock. 7. The viewing distance notification device according to claim 6, wherein the viewing distance notification device is stored in a readable manner in a linked manner.

8. The sound generator according to claim 6, wherein the sound generator includes a speaker and warns that it is too close to the human, and emits a sound, and the illuminant is formed of symbols, characters, and colors. Viewing distance notification device.

9. The sound generator and the speaker are provided in the electronic device in advance, and the illuminant is the electronic screen provided in the electronic device in advance. 8. The viewing distance notification device according to 8.