JP5063526B2 - Information processing method, program, and information processing apparatus - Google Patents

Description

  The present invention relates to an information processing method, a program, and an information processing apparatus.

  Mental and physical fatigue due to VDT (Visual Display Terminals) work is a problem. Even in the survey of the actual situation of VDT work by the Ministry of Health, Labor and Welfare ("Fact-finding Survey on Technological Innovation and Labor (2003)"), there are still a large proportion of VDT workers who feel a feeling of physical and mental fatigue due to VDT work. It has been revealed.

Patent Document 1 proposes a system in which a visual sensor is provided on a display and a warning is output when a VDT worker gets too close to the screen. In this system, if the VDT work is performed for a long time, the screen becomes too engrossed and the screen is approached too much, leading to eye fatigue and a reduction in visual acuity.
JP 2003-70768 A

  By the way, if you are addicted to VDT work, you may not only get too close to the screen, but also have a forward tilted posture with the head protruding (stoop) or a posture in which the spine is bent. If the VDT work is continued in such a bad working posture, it causes stiff shoulders, low back pain, migraine, and the like.

  The present invention has been made in view of such problems, and detects the poor working posture of a VDT worker and outputs a warning signal to prevent the occurrence of symptoms of VDT syndrome associated with the poor working posture. For the purpose.

One of the present invention is an information processing method according to Preparations obtain information processing apparatus and an input device and a display device, a distance sensor the information processing apparatus, which is disposed in at least two locations around the screen of the display device more, the from the screen of the display device, obtaining a distance to the operator operating the input device toward the screen, determining the working position of the worker on the basis of the distance obtained, the A step of outputting a warning signal related to the work posture based on the determination result of the work posture, a step of obtaining an image obtained by photographing the eyes of the worker from an image sensor arranged around the screen, and the obtained worker And determining whether or not the operator's line of sight is facing the screen based on the image of the eye, and determining the working posture includes the step of: If not toward the plane, characterized in that it comprises a step of invalidating the determination of the working posture.

  Further, in the above information processing method, the distance sensor includes a first distance sensor and a second distance sensor having different positions in the vertical direction of the screen, and the step of determining the work posture includes the first distance sensor. Determining whether the difference between the distances acquired from each of the sensor and the second distance sensor exceeds a first threshold value indicating a boundary indicating whether or not the worker is tilting too much forward with respect to the screen. The step of outputting the warning signal includes a step of outputting a warning signal indicating that the work posture of the worker is excessively inclined forward with respect to the screen when the first threshold value is exceeded. Good.

  Further, in the above information processing method, the distance sensor includes a third distance sensor and a fourth distance sensor having different positions in the horizontal direction of the screen, and the step of determining the working posture includes the third distance sensor. Determining whether the difference between the distances acquired from each of the sensor and the fourth distance sensor exceeds a second threshold value indicating a boundary indicating whether or not the operator is too oblique to the screen, The step of outputting the warning signal may include a step of outputting a warning signal indicating that the work posture of the worker is too oblique with respect to the screen when the second threshold value is exceeded.

  Further, in the above information processing method, whether any one of the plurality of distances acquired from the distance sensor is below a third threshold value indicating a boundary indicating whether the worker is too close to the screen or not. The step of outputting the warning signal includes a step of outputting a warning signal indicating that the work posture of the worker is too close to the screen when the third threshold is exceeded. It is good also as having.

  In the information processing method, the step of outputting the warning signal may include a step of displaying the warning signal on a screen of the display device.

Further, the other main present invention for solving the above-described problem is that, in an information processing apparatus including an input device and a display device, the distance sensor disposed in at least two places around the screen of the display device, A function of acquiring a distance from the screen of the display device to an operator who operates the input device toward the screen; a function of determining a worker's working posture based on the acquired distance; and A function for outputting a warning signal related to the working posture based on the determination result, a function for obtaining an image obtained by photographing the eyes of the worker from an image sensor arranged around the screen, and an eye of the obtained worker A function for determining whether or not the operator's line of sight is directed toward the screen based on an image; and a function for invalidating the determination of the work posture when the worker's line of sight is not directed toward the screen. Is a program for the current.

Still other principal present invention for solving the problems described above, an input device and a display device, from a distance sensor disposed in at least two positions around the screen of the display device, the screen of the display device a distance acquisition section that acquires a distance to an operator operating the input device toward the screen, a work posture determination unit determines worker working posture based on the distance obtained, of the working posture A warning output unit that outputs a warning signal related to a work posture based on the determination result, an image acquisition unit that acquires an image obtained by photographing an operator's eyes from an image sensor arranged around the screen, and the acquired work A line-of-sight direction determination unit that determines whether or not the operator's eye is directed toward the screen based on the image of the worker's eyes, and Characterized Rukoto a working posture determination invalidating unit for invalidating a constant.

  According to the present invention, by detecting a poor working posture of a VDT worker and outputting a warning, it is possible to prevent the occurrence of symptoms of VDT syndrome associated with the poor working posture.

<< Configuration of VDT equipment >>
A VDT device is an information processing device having a display device for displaying information such as characters and graphics and an input device, and is used in a desktop or notebook personal computer (hereinafter abbreviated as a personal computer), a store, or the like. It is used as a POS (Point Of Sale) terminal, a display panel for system monitoring, and the like. Note that the work of performing programming, monitoring, etc., such as data entry, search, collation, creation, editing, correction, etc. of data, images, etc., using a VDT device is called VDT work. In addition, a disease that disturbs the mind and body by continuing VDT work for a long time is called VDT syndrome.

  In addition to the above-described configuration and functions, the VDT device of the present invention has a configuration and a function for alerting the work posture to the VDT worker who operates the input device toward the screen of the display device.

  FIG. 1 is a block diagram showing a configuration of a VDT device 100 and peripheral devices according to an embodiment of the present invention.

  The VDT device 100 includes a CPU (Central Processing Unit) 101, an input device 102, a display device 103, a display driver 104, a distance sensor 105, an image sensor 106, an output device 107, a USB (Universal Serial Bus) interface 108, a USB receiver 109, It has a memory 110 and a hard disk 111.

The CPU 101 is a processor that controls the entire VDT device 100. In addition to the CPU 101, the present invention may be implemented as a microcomputer or a microprocessor.
The input device 102 is a device on which a VDT worker inputs data and is implemented by a keyboard, a mouse, a numeric keypad input device, or the like.
The display device 103 is a device for visually confirming characters, images, and the like displayed on the screen when the VDT worker performs the VDT operation, and is implemented by a liquid crystal display, a liquid crystal panel, a cathode ray tube, or the like.
The display driver 104 is a driver that controls screen display of characters and images on the display device 103.

  The distance sensor 105 is arranged at least at two different positions in the screen vertical direction around the screen of the display device 103 (for example, a frame surrounding the screen), and determines the distance to the VDT worker heading toward the screen of the display device 103. It is a sensor to detect. The distance sensor 105 is implemented by an infrared distance sensor, an ultrasonic distance sensor, a laser distance sensor, or the like. The distance sensor 105 has a wireless communication function according to standards such as Bluetooth (registered trademark) and IrDA, and transmits the detected distance to the USB receiver 109 by wireless communication.

  The image sensor 106 is a sensor that captures an image of the eyes of the VDT worker around the screen of the display device 103 (for example, a frame surrounding the screen). The image sensor 106 is implemented by a CCD (Charge Coupled Device) camera, a CMOS (Complementary Metal Oxide Semiconductor) camera, or the like. Similarly to the distance sensor 105, the image sensor 106 has a wireless communication function according to a standard such as Bluetooth (registered trademark) or IrDA, and transmits the detected image to the USB receiver 109 by wireless communication.

  The distance sensor 105 and the image sensor 106 may be USB devices and may be connected to the USB receiver 109 with a USB cable. In this case, the distance sensor 105 and the image sensor 106 can be supplied with power from the USB receiver 109 via the USB cable.

  The output device 107 is an output device other than the display device 103 and is implemented as a speaker, a printer, or the like.

  The USB interface 108 is a communication interface that exchanges information with various USB devices connected to a USB port (not shown) included in the VDT device. A USB device connected to the USB port can be supplied with power via the USB interface 108.

  The USB receiver 109 is one of USB devices connected to the USB interface 108. The USB receiver 109 has a function of receiving the distance detected by the plurality of distance sensors 105 and the image detected by the image sensor 106 by wireless communication. The USB receiver 109 corresponds to the distance acquisition unit according to the claims of the present application.

  The memory 110 is a main storage device of the VDT device 100 and is implemented by a RAM, a ROM, or the like. The CPU 101 executes various processes using data and programs stored in the memory 102.

  The hard disk 111 is an auxiliary storage device of the VDT device 100. The hard disk 111 is installed with a VDT work posture determination program 200 stored in a recording medium such as a CD medium or a DVD medium. The VDT work posture determination program 200 includes an image processing module 210, a distance detection module 220, and a work posture determination module 230, and is a main routine for calling them.

  The image processing module 210 is a program that performs image processing on an image sent from the image sensor 106. For example, a process of identifying color information for each pixel of the original image is performed. As a result, the position of the line of sight of the VDT worker (retina, pupil, etc.) can be identified.

  The distance detection module 220 can compare a plurality of distances sent from the plurality of distance sensors 105 according to a time difference in data exchange between the plurality of distance sensors 105 and the USB receiver 109 and a posture of the display device 103. It is a program which corrects as follows.

  The work posture determination module 230 comprehensively calculates the position of the line of sight of the VDT worker obtained as the processing result of the image processing module 210 and the distance between the VDT worker obtained as the processing result of the distance detection module 220. This is a program for judging whether or not the working posture of the VDT worker is bad and outputting a warning signal for the VDT worker when the working posture is bad. The warning signal is output by causing the display driver 104 to display a warning message (an example of a warning signal) indicating that the working posture is bad on the screen of the display device 103.

  Note that the VDT work posture determination program 200 is not limited to being installed in the hard disk 111. The recording medium such as a CD medium or a DVD medium in which the VDT work posture determination program 200 is stored may be directly reproduced from a CD / DVD reproducing apparatus (not shown) provided in the VDT device 100 and executed. The function executed by the VDT work posture determination program 200 may be implemented as hardware such as an integrated circuit.

  The output of the warning signal is not limited to the embodiment in which the warning message is displayed on the screen, and the warning message and the warning sound may be output from the speaker as the output device 107.

<< Mounting position of distance sensor and image sensor >>
Hereinafter, with reference to FIG. 2, a notebook personal computer 300 is taken as an example of the VDT device 100 illustrated in FIG. 1, and mounting positions of the distance sensor 105 and the image sensor 106 in the display device 103 will be described in detail.

In the notebook personal computer 300 illustrated in FIG. 2, the keyboard 1021 and the pointing device 1022 that constitute a part of the main body housing 1023 correspond to the input device 102 in relation to the VDT device 100 illustrated in FIG. 1.
Further, a liquid crystal casing 1033 including a liquid crystal panel 1031 and a frame 1032 surrounding the liquid crystal panel 1031 corresponds to the display device 103. Note that FIG. 2 shows a case where a warning message 1035 is displayed at the center position of the liquid crystal panel 1031.
The five distance sensors 105 a to 105 e correspond to the distance sensor 105.
The image sensor 106 is disposed at the center of the frame 1032 on the upper side of the drawing with respect to the liquid crystal panel 1031.

The distance sensor 105a is disposed at the center of the frame 1032 on the upper side of the drawing with respect to the liquid crystal panel 1031. The image sensor 106 and the image sensor 106 are arranged side by side in the horizontal direction.
The distance sensor 105b is disposed at the center of the frame 1032 on the right side of the drawing with respect to the liquid crystal panel 1031.
The distance sensor 105 c is disposed at the center of the frame 1032 on the left side of the paper with respect to the liquid crystal panel 1031.
The distance sensor 105d is disposed below the frame 1032 on the right side of the drawing with respect to the liquid crystal panel 1031 (that is, the lower right corner).
The distance sensor 105e is disposed below the frame 1032 on the left side of the paper with respect to the liquid crystal panel 1031 (that is, the lower left corner).

  With the above arrangement, the distance sensor 105a, the distance sensors 105b and 105c, and the distance sensors 105d and 105e are arranged in this order from the upper side to the lower side of the liquid crystal display panel 1031 in the vertical direction.

  Note that the first distance sensor and the second distance sensor having different positions in the vertical direction according to the claims of the present application are the distance sensor 105a (first distance sensor) and the distance sensor 105b (second distance sensor). In the case of the sensor 105a (first distance sensor) and the distance sensor 105b (second distance sensor), in the case of the distance sensor 105a (first distance sensor) and the distance sensor 105c (second distance sensor), the distance sensor 105b (first distance sensor). 1 distance sensor) and distance sensor 105d (second distance sensor) correspond to distance sensor 105c (first distance sensor) and distance sensor 105e (second distance sensor).

  Further, the distance sensors 105b and 105d, the distance sensor 105a, and the distance sensors 105c and 105e are arranged in this order from the right side to the left side as the horizontal position of the liquid crystal display panel 1031.

  The third distance sensor and the fourth distance sensor having different horizontal positions according to the claims of the present application are the distance sensors 105b (third distance sensor) and the distance sensor 105c (fourth distance sensor). The case of the sensor 105d (third distance sensor) and the distance sensor 105e (fourth distance sensor) corresponds.

  FIG. 3 is a diagram showing the positional relationship between the VDT worker and various sensors. In the example shown in FIG. 3, with respect to the main body casing 1023, the liquid crystal casing 1033 is tilted backward by an angle θ from the vertical position (position on the line XL shown in the figure) (the line shown in the figure). (Position on YL).

  The image sensor 106 is positioned around the eyes of the VDT worker at a position (position parallel to the horizontal line HL shown in the drawing) parallel to the mounting table (such as on the office desk) 400 on which the main body housing 1023 is placed. The image around the eyes is expressed as an image F.

In the distance sensor 105a, the central portion of the head of the VDT worker is positioned at a position parallel to the horizontal line HL shown in FIG. The distance from the distance sensor 105a to the center of the head of the VDT worker is expressed as a distance L1.
In the distance sensor 105b (105c), the right chest (left chest) of the VDT worker is positioned at a position parallel to the horizontal line HL shown in FIG. Note that the distance from the distance sensor 105b (105c) to the right chest (left chest) of the VDT worker is expressed as a distance L2 (L3).
In the distance sensor 105d (105e), the right abdomen (left abdomen) of the VDT worker is positioned at a position parallel to the horizontal line HL shown in FIG. The distance from the distance sensor 105d (105e) to the right abdomen (left abdomen) of the VDT worker is expressed as a distance L4 (L5).

  The above-mentioned guidelines describe that “a viewing distance of approximately 40 cm or more can be secured”. When the liquid crystal housing 1033 is at the reference position (position on the line XL), the boundary indicating whether or not the VDT worker is too close to the screen with respect to the distance L1 from the distance sensor 105a to the VDT worker is shown. A threshold LA (a third threshold according to the claims of the present application) is set. In the present embodiment, the threshold value LA is set at a distance in the range of 40 to 60 cm.

  Further, the degree of bending of the back muscles of the VDT worker (the degree of obliqueness of the back muscles) can be identified by the difference between the distances L2 and L3 (| L2-L3 |) and the difference between the distances L4 and L5 (| L4-L5 |). it can. Therefore, a threshold LB indicating a boundary as to whether or not the VDT worker is too oblique to the screen is set for these differences. In the present embodiment, the threshold LB is set as a distance within a range of 30 to 100 cm.

  Further, the difference between the distances L1 and L2 (L2−L1), the difference between the distances L1 and L3 (L3−L1), the difference between the distances L2 and L4 (L4−L2), and the difference between the distances L3 and L5 (L5−L3). The degree of the forward tilt posture of the VDT worker can be identified. Therefore, for these differences, a threshold value LC is set that indicates a boundary as to whether or not the VDT worker is leaning forward with respect to the screen. In the present embodiment, the threshold LC is set at a distance within a range of 10 to 30 cm.

  Each sensor (105a to 105e, 106) preferably has a structure capable of swinging using gravity so as to face the VDT worker in the horizontal direction regardless of the angle of the liquid crystal casing 1033.

  Further, the number and arrangement of the distance sensors 105a to 105e are not limited to the number and arrangement position shown in FIGS. For example, when identifying the degree of the forward leaning posture, it is sufficient that at least two distance sensors 105 are provided. For example, a distance sensor is provided at a position facing the distance sensor 105a, and the other distance sensors 105b to 105d are not provided. May be. In identifying the degree of bending of the back muscle, it is sufficient that at least two distance sensors 105 are provided, and for example, the distance sensors 105b and 105c may be omitted.

<< Working posture alert method (information processing method) >>
With reference to the flowchart shown in FIG. 4, the processing flow of the method for alerting the working posture of the VDT worker by the notebook personal computer 300 shown in FIG. 3 will be described. The subject of the following processing is the CPU 101 that executes the VDT work posture determination program 200 unless otherwise specified.

  First, the VDT worker opens the liquid crystal casing 1033 and performs a VDT operation for checking the display on the liquid crystal panel 1031 of the liquid crystal casing 1033 while operating the keyboard 1022 and the like. In this case, the image sensor 106 captures an image F around the eyes of the VDT worker and transmits it to the USB receiver 109. Similarly, the distance sensors 105a to 105e detect the distances L1 to L5 between the VDT worker and transmit them to the USB receiver 109, respectively.

  At the start of the VDT work, the notebook personal computer 300 transfers the VDT work posture determination program 200 stored in the hard disk 111 to the memory 110 and starts execution by the CPU 101. When the USB receiver 109 receives the image F and the distances L1 to L5, the notebook personal computer 300 acquires it via the USB interface 108, and calls and executes the image processing module 210 and the distance detection module 220. Accordingly, the image F and the distances L1 to L5 are converted into a format that can be processed by the work posture determination module 230. Then, the CPU 101 calls the work posture determination module 230 and executes it.

  Under the above circumstances, first, in S401, the CPU 101 determines whether or not the line of sight of the VDT worker is facing the liquid crystal panel 1031 based on the image F processed by the image processing module 210. For example, the determination is made based on the image of the eye that is facing the liquid crystal panel 1031. When the line of sight does not face the liquid crystal panel 1031 such as when the line of sight faces downward or far away (S401: NO), the output of the warning signal related to the working posture is invalidated. Specifically, the process returns to S401. On the other hand, when the line of sight is directed toward the liquid crystal panel 1031 (S401: YES), the process proceeds to S402.

  In S402, the CPU 101 determines whether any of the distances L1 to L5 processed by the distance detection module 220 is smaller than the threshold LA (S402). That is, it is determined whether or not the VDT worker is too close to the liquid crystal panel 1031. If all of the distances L1 to L5 are larger than the threshold LA (S402: NO), the process proceeds to S403, and if any of the distances L1 to L5 is smaller than the threshold LA (S402: YES), the process proceeds to S409.

  In S403, the CPU 101 calculates the absolute value | L2-L3 | of the difference between the distances L2 and L3 and the absolute value | L4-L5 | of the difference between the distances L4 and L5. Then, the CPU 101 determines whether any of | L2-L3 | and | L4-L5 | is greater than the threshold LB. That is, it is determined whether or not the working posture of the VDT worker is too oblique. If all of | L2-L3 | and | L4-L5 | are smaller than the threshold LB (S403: NO), the process proceeds to S404, and if any of | L2-L3 | and | L4-L5 | is larger than the threshold LB ( (S403: NO), the process proceeds to S406.

  In step S404, the CPU 101 determines that any one of the differences L2-L1 between the distances L2 and L1, the differences L3-L1 between the distances L3 and L1, the differences L4-L2 between the distances L4 and L2, and the differences L5-L3 between the distances L5 and L3 is a threshold value. Determine if greater than LC. That is, it is determined whether or not the working posture of the VDT worker is tilted forward too much. When all of L2-L1, L3-L1, L4-L2, and L5-L3 are smaller than the threshold value LC (S404: NO), it is not too close, not too oblique, and is not inclined too forward. The warning signal is not output, and the process returns to S401. On the other hand, when any of L2-L1, L3-L1, L4-L2, and L5-L3 is larger than the threshold LC (S404: YES), it is neither too close nor too oblique, but is too leaning forward. Therefore, a warning signal to that effect is output (S405). Then, the process returns to S401.

  In S406, similarly to S404, it is determined whether or not the working posture of the VDT worker is tilted too much forward. When all of L2-L1, L3-L1, L4-L2, and L5-L3 are smaller than the threshold value LC (S406: NO), it is neither too close nor too far forward, but it is too oblique, A warning signal to that effect is output (S407). Then, the process returns to S401. On the other hand, when any one of L2-L1, L3-L1, L4-L2, and L5-L3 is larger than the threshold LC (S406: YES), it is not too close, but is too slanted and is too leaning forward. Therefore, a warning signal to that effect is output (S408). Then, the process returns to S401.

  In S409, similarly to S403, it is determined whether or not the working posture of the VDT worker is too oblique. If all of | L2-L3 | and | L4-L5 | are smaller than the threshold LB (S409: NO), the process proceeds to S410, and if any of | L2-L3 | and | L4-L5 | (S409: NO), the process proceeds to S413.

  In S410, as in S404, it is determined whether or not the working posture of the VDT worker is tilted too far forward. If all of L2-L1, L3-L1, L4-L2, and L5-L3 are smaller than the threshold LC (S410: NO), it is not too forward tilted, but not too oblique, but it is too close, A warning signal to that effect is output (S411). Then, the process returns to S401. On the other hand, when any of L2-L1, L3-L1, L4-L2, and L5-L3 is larger than the threshold LC (S410: YES), it is neither too close nor too oblique, but is too inclined forward. Therefore, a warning signal to that effect is output (S412). Then, the process returns to S401.

  In S413, as in S404, it is determined whether or not the working posture of the VDT worker is tilted too much forward. When all of L2-L1, L3-L1, L4-L2, and L5-L3 are smaller than the threshold value LC (S413: NO), it is not too leaning forward, but it is too close and too oblique. A warning signal to that effect is output (S414). Then, the process returns to S401. On the other hand, when any of L2-L1, L3-L1, L4-L2, and L5-L3 is larger than the threshold value LC (S413: YES), it is too close, too oblique, and too lean forward. Therefore, a warning signal to that effect is output (S415). Then, the process returns to S401.

  As described above, according to the above-described work posture alerting method, the VDT device 100 (notebook personal computer 300) is acquired from the distance sensors 105 arranged in at least two different positions in the screen vertical direction of the display device 103. Based on the distance, it is possible to detect the degree of the forward tilt posture with respect to the screen of the VDT worker. In addition, since a warning signal indicating that is tilted too much is output, it is possible to prevent in advance the occurrence of symptoms of VDT syndrome (stiff shoulders, back pain, migraine, etc.) associated with poor working posture. Become.

  Whether the work posture of the VDT worker is tilted too forward based on the distance acquired from at least one pair of distance sensors (for example, distance sensors 105a and 105b) having different positions in the screen vertical direction of the display device 103. It is possible to individually determine whether or not and output a warning signal to that effect.

  Whether the working posture of the VDT worker is too oblique based on the distances detected by at least one pair of distance sensors (for example, distance sensors 105b and 105c) having different positions in the screen horizontal direction of the display device 103. Such determination and output of a warning signal to that effect can be performed individually and specifically.

  Furthermore, in addition to the above-mentioned determination and warning of the poor working posture (too forward tilting, too oblique tilting), the working posture of the VDT worker is too close based on the distances detected by the plurality of distance sensors 105. It is possible to determine whether or not there is a warning signal and output a warning signal to that effect.

  Further, based on the image of the eyes of the VDT worker taken by the image sensor 106 provided in the display device 103, when the line of sight of the VDT worker is not facing the screen, the determination of the poor working posture is performed. Since it is not necessary to output a warning signal to that effect, these can be invalidated.

  In addition, the warning signal is output by displaying a warning message 1035 on the screen of the display device 103 of the VDT device 100 on which the VDT worker is actually working, so that the VDT worker can directly output the warning signal. It is possible to call attention to the poor working posture more quickly.

  Although the present embodiment has been described above, the above-described examples are for facilitating the understanding of the present invention, and are not intended to limit the present invention. The present invention can be changed / improved without departing from the spirit thereof, and the present invention includes equivalents thereof.

It is the block diagram which showed the structure of the VDT apparatus which concerns on one Embodiment of this invention. It is the figure which showed the attachment position of the distance sensor in the display apparatus of the VDT apparatus which concerns on one Embodiment of this invention, and an image sensor. It is a figure explaining the positional relationship of the VDT worker who concerns on one Embodiment of this invention, a distance sensor, and an image sensor. It is a flowchart which shows the flow of a process of the alerting method of the working posture which concerns on one Embodiment of this invention.

Explanation of symbols

100 VDT equipment 101 CPU
102 Input Device 103 Display Device 105, 105a to 105e Distance Sensor 106 Image Sensor 107 Output Device 108 USB Interface 109 USB Receiver 110 Memory 111 Hard Disk 200 VDT Work Attitude Determination Program 210 Image Processing Module 220 Distance Detection Module 230 Work Attitude Determination Module 300 Notes Type PC

Claims (7)

An information processing method according to Preparations obtain information processing apparatus and an input device and a display device,
The information processing apparatus is
Obtaining a distance from a screen of the display device to an operator operating the input device toward the screen from a distance sensor disposed at least at two locations around the screen of the display device;
Determining a working posture of the operator based on the acquired distance,
Outputting a warning signal related to a work posture based on the determination result of the work posture;
Obtaining an image of the eyes of the operator from an image sensor arranged around the screen;
Determining whether or not the operator's eye line is facing the screen based on the acquired operator's eye image;
Run
The step of determining the working posture includes
An information processing method comprising a step of invalidating the determination of the working posture when the line of sight of the worker is not facing the screen . An information processing method according to claim 1,
The distance sensor is constituted position on the vertical direction of the screen have a different first distance sensor and the second distance sensor,
The step of determining the working posture includes
It is determined whether or not the difference between the distances acquired from each of the first distance sensor and the second distance sensor exceeds a first threshold value indicating a boundary indicating whether or not the worker is tilting forward with respect to the screen. Including steps,
Outputting the warning signal comprises:
When said first exceeds the threshold value, that the work skilled work posture comprising outputting a warning signal indicating that too tilted forward relative to the screen,
An information processing method characterized by the above. The information processing method according to claim 1 or 2,
The distance sensor is constituted position on the horizontal direction of the screen have a different third distance sensor and the fourth distance sensor,
The step of determining the working posture includes
Determining whether or not the difference in distance acquired from each of the third distance sensor and the fourth distance sensor exceeds a second threshold value indicating a boundary indicating whether or not the operator is too oblique to the screen. Including
Outputting the warning signal comprises:
When exceeding the second threshold value, further comprising the step of outputting a warning signal indicating that work supplier work posture has passed obliquely to the screen,
An information processing method characterized by the above. The information processing method according to claim 2 or 3,
Any of a plurality of distances obtained from the distance sensor comprises determining whether below a third threshold which indicates whether the boundary operator is too close to the screen,
Outputting the warning signal comprises:
When used below the third threshold value, further comprising the step of outputting a warning signal indicating that work supplier work posture is too close to the screen,
An information processing method characterized by the above. An information processing method according to any one of claims 1 to 5,
Outputting the warning signal comprises:
Including displaying the warning signal on a screen of the display device;
An information processing method characterized by the above. In an information processing device including an input device and a display device,
A function of acquiring a distance from a screen of the display device to a worker who operates the input device toward the screen from a distance sensor disposed at least at two locations around the screen of the display device;
A function of determining a worker's working posture based on the acquired distance;
A function of outputting a warning signal related to a work posture based on the determination result of the work posture;
A function of acquiring an image of an operator's eyes from an image sensor arranged around the screen;
A function for determining whether or not the operator's eye line is facing the screen based on the acquired image of the operator's eye;
A function of invalidating the determination of the working posture when the operator's line of sight is not facing the screen;
Program to realize. An input device and a display device ;
A distance acquisition unit that acquires a distance from a screen of the display device to a worker who operates the input device toward the screen from a distance sensor disposed at least at two locations around the screen of the display device;
A working posture determination unit determines working posture of the operator based on the acquired distance,
A warning output unit that outputs a warning signal related to the work posture based on the determination result of the work posture;
An image acquisition unit that acquires an image of the eyes of an operator from an image sensor disposed around the screen;
A line-of-sight direction determination unit that determines whether or not the line of sight of the worker is facing the screen based on the acquired image of the eye of the worker;
Wherein when the operator's perspective is not facing the screen, the information processing apparatus according to claim Rukoto a working posture determination invalidating unit for invalidating the determination of the working posture.

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