JPH04309996A - Man-machine device - Google Patents

Abstract

PURPOSE:To perform enlarging, reducing, and scrolling operation for a display picture on a CRT in parallel to editing input operation without interrupting operation or consideration for editing input. CONSTITUTION:An operator when viewing the details of the CRT picture 4 in editing input operation for a CRT 1 by operating a mouse 2, a keyboard, etc., puts his eyes to the screen unintentionally as shown by an arrow 6. At this time, the upper half body of the operator moves and the center of gravity moves forward to operate a piezoelectric step 3a fitted to a chair 7, thereby enlarging the CRT picture 4. When the operator sees the whole picture, the eyes leaves the CRT screen 4 unintentionally, so the center of gravity of the operator moves to the rear part of the chair 7 and the piezoelectric switch 3c is operated to reduce the picture 4.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to a man-machine interface method used in an interactive manner in a computer system, and particularly to operability when inputting instructions for enlarging, reducing, or scrolling a screen on a display means. This invention relates to a man-machine device that can perform excellent input.

0002

[Background Art] In recent years, CRT devices have become more sophisticated and intelligent, and in fields such as CAD and word processing, parts of drawings, texts, etc. are displayed on the CRT screen, and these drawings, texts, etc. Edit with mouse, light pen,
Opportunities to use input devices such as keyboards are increasing.

[0003] As a prior art related to a man-machine device for editing such drawings, texts, etc., the technology described in, for example, Japanese Patent Application Laid-Open No. 61-27587 is known.

[0004]Editing work using the above-mentioned prior art apparatus is often done while looking at the overall layout and the relationship with the vicinity of the editing location, and for this reason, it is difficult to enlarge or reduce the screen.
It has a scrolling function.

[0005]The input operation method is to instruct a command indicating enlargement, reduction, or scrolling using a pointing device such as a mouse, light pen, or keyboard, or a code generator, and then specify the enlargement, reduction ratio, or amount of movement. This is done by inputting information.

[0006]

[Problems to be Solved by the Invention] In the prior art, in order to perform screen display operations such as enlarging, reducing, and scrolling the screen, it is necessary to interrupt other editing input operations, and screen display operations are frequently performed. When it is necessary to carry out the implementation, many interruptions in work and thinking occur, resulting in extremely poor operability.

An object of the present invention is to solve the problems of the prior art described above, and to enlarge or reduce the display screen on a CRT in parallel with the editing input work without interrupting the editing input work or thinking. The object of the present invention is to provide a man-machine device with good operability that can perform scroll operations.

[0008]

[Means for Solving the Problems] According to the present invention, the object is to perform operations for enlarging, reducing, and scrolling a screen independently of operations from an editing input device such as a mouse, a light pen, and a keyboard. This can be achieved by providing an input device that can

[0009]Furthermore, the above object is to provide a screen display operation input means for moving the worker's body, head, eyes, or weight;
Detects tilt, rotation, etc., and uses the detection results to enlarge the screen,
This is achieved by providing a device that converts into reduction and scroll operation inputs.

0010

[Effect] In general, when people read documents, etc., they bring their eyes closer to the paper when reading detailed articles (enlargement), and move their eyes away from the paper when looking at the whole thing (zooming out). When viewing (scrolling), the natural action is to rotate the head and look in the direction of the article you want to view.

[0011] Therefore, for example, changes in body weight, body inclination, C
By detecting changes in the distance from the RT to the head and changes in the distance between the eyes and enlarging or reducing the CRT screen, and by detecting head rotation and scrolling. This allows the person to unconsciously operate the CRT screen to enlarge, reduce, and scroll, making it possible to provide an excellent man-machine interface.

0012

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a man-machine interface device according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram illustrating a first embodiment of the present invention in which the CRT screen is enlarged or reduced by detecting the movement of body weight, and FIG. 2 shows the configuration of the first embodiment of the present invention. FIG. 3 is a block diagram illustrating the relationship between the position of the center of gravity of the worker and the operation of the piezoelectric switch, and FIG. 4 is a flowchart illustrating the operation. 1 and 2, 1 is a CRT, 2 is a mouse, 3 is an input device, 4 is a CRT screen, 5 is a CPU, and 7
is a chair, and 3a and 3c are piezoelectric switches.

The embodiment of the present invention shown in FIGS.
The back and forth movement of the weight of the user working while looking at the T screen 4 is detected by piezoelectric switches 3a and 3c arranged at the front and rear of the seat of the chair 7, and the CRT screen is enlarged or reduced. This is an example of realizing a man-machine device, with CPU5, CR
1, a mouse 2, piezoelectric switches 3a and 3c, and an input device 3 for transmitting input signals from the piezoelectric switches to the CPU 5.

As shown in FIG. 3, which shows the operating levels of the piezoelectric switches 3a and 3c and the operating modes depending on the position of the center of gravity of the worker, the piezoelectric switch 3a is placed in front of the seat surface of the chair 7, and The piezoelectric switch 3c operates when the worker leans forward and his/her center of gravity moves forward.
It works when its center of gravity moves backwards. Further, when the worker is in a normal position and his center of gravity is in the center, the piezoelectric switches 3a, 3c do not operate.

The input device 3 instructs the CPU 5 to enlarge or reduce the display screen in response to the operations of the piezoelectric switches 3a and 3c as described above. That is, when the piezoelectric switch 3a is activated, the input device 3 determines that the worker is bending forward and looking closely at the CRT screen 4, and
When the CPU 5 is instructed to enlarge the T screen 4 and the piezoelectric switch 3c is activated, it is determined that the worker is viewing the CRT screen 4 from a distance, and the CPU 5 is instructed to reduce the CRT screen 4. In addition, the input device 3 includes a piezoelectric switch 3
If neither a nor 3c is operating, it is assumed that the worker is in a normal position, and no instructions are given to the CPU 5. The CPU 5 controls the enlargement and reduction of the CRT screen 4 according to these instructions.

The above-mentioned operation is shown in the flow shown in FIG. 4, and this flow is activated every second. Then, when this flow is executed, the piezoelectric switch 3a
When the display screen is in operation and the display screen enlargement instruction state is given, the display screen is enlarged to 1.5 times the current display screen size. As mentioned above, this flow is activated every second, so if the worker leans forward for a long time, the display screen will gradually be enlarged by 1.5 times. . Further, when this flow is executed, if the piezoelectric switch 3c is operating and the display screen is in a reduction instruction state, the display screen is 1/1.5 of the current display screen size.
The image will be displayed reduced in size. Then, as in the case of enlargement, if the worker leans backward for a long time, the display screen will be gradually reduced in size.

Since the first embodiment of the present invention operates as described above, it is possible to control the enlargement or reduction of the screen as follows, depending on the operating state of the operator.

That is, when an operator is performing editing input work on the CRT 1 by operating the mouse 2 or a keyboard (not shown) and wishes to view the details of the CRT screen 4, the operator The user subconsciously moves his/her eyes toward the screen 4 as shown by the arrow 6 in FIG.

At this time, the worker's upper body moves, the worker's center of gravity moves to the front side of the chair 7, the piezoelectric switch 3a attached to the chair 7 is activated, and the CRT screen 4 is enlarged. . By enlarging the screen 4, the worker no longer needs to bring his eyes close and returns to his original position, and the piezoelectric switch 3a becomes inactive, so the CPU
5 stops the enlargement of the screen.

Furthermore, when the worker tries to view the entire screen, the worker unconsciously tries to take his eyes off the CRT screen 4. At this time, the worker's center of gravity moves to the rear of the chair 7, and the piezoelectric switch 3c is activated. As a result, C
The PU 5 executes reduction of the screen 4.

As described above, according to the man-machine device according to the first embodiment of the present invention, the operator can change the screen size necessary for the work without interrupting the editing work using the CRT 1 and the mouse 2, etc. Operations can be performed unconsciously, and the performance of the man-machine interface can be improved.

In the first embodiment of the present invention described above, the chair 7
Switches 3a and 3c using piezoelectric sensors are provided before and after the switch, and the enlargement and reduction of the display screen are controlled by the operation of these switches.As a modification of this embodiment,
There is also a configuration in which another piezoelectric switch is provided in the center of the chair 7.

FIG. 5 is a diagram illustrating a modification of the first embodiment of the present invention. In FIG. 5, 3b is a piezoelectric switch, and other symbols are the same as in FIGS. 1 and 2.

In this example, the signal from the piezoelectric switch 3a installed in front of the chair 7 is compared with the signal from the piezoelectric switch 3b installed at the center, and it is determined that the signal from the piezoelectric switch 3a > the signal from the piezoelectric switch 3b. In this case, an instruction to enlarge the display screen is given, and the signal from the piezoelectric switch 3b provided at the center is compared with the signal from the piezoelectric switch 3c provided at the rear to determine the size of the piezoelectric switch 3c. When the signal is greater than the signal of the piezoelectric switch 3b, an instruction to reduce the display screen is given.

[0026] In this case, if the worker is in a normal working position and his center of gravity is at the center, neither enlargement nor reduction instructions are given, and the display screen is not controlled to enlarge or reduce. .

[0027] Even with such a modification, the same effects as in the case of the first embodiment of the present invention described above can be obtained.

In the above-described first embodiment of the present invention and its modifications, the movement of the worker in the front and back direction is detected by the piezoelectric sensor. It is also possible to detect the inclination of the worker in the left-right direction, thereby making it possible to scroll the screen in the left-right direction.

FIG. 6 is a diagram for explaining a second embodiment of the present invention, FIG. 7 is a block diagram showing its configuration, and FIG. 8 is a flowchart for explaining its operation. 6 and 7, 8 is an input device, 8a to 8d are ultrasonic receivers, 9 is an ultrasonic transmitter, and other symbols are the same as in FIGS. 1 and 2.

In this embodiment, the movement and rotation of the worker's head is detected, and thereby the CRT screen can be enlarged, reduced, and scrolled at the same time.

[0031] In this embodiment of the present invention, the CPU 5, CRT
1. Mouse 2. Ultrasonic transmitter 9 attached to the worker's head
, ultrasonic receivers 8a, 8b, 8c, and 8d, and an input device 8 for transmitting an intensity signal of the ultrasonic waves received by the ultrasonic receivers to the CPU 5.

The ultrasonic receivers 8a to 8d are attached to the squares of the CRT 1, receive ultrasonic waves transmitted from an ultrasonic transmitter 9 attached to the worker's head, and input the received intensity to an input device. 8 is entered.

The input device 8 stores the received sound wave intensity of each receiver when the worker is in the correct position, and as the worker's eyes approach the CRT screen 4, the received sound intensity of all the receivers changes when the worker is in the correct position. When the reception strength becomes stronger than , the CPU 5 instructs the CPU 5 to enlarge the screen 4, and when the reception strength weakens as the eye moves away from the screen 4, it instructs the CPU 5 to reduce the screen.

[0034] Furthermore, when the worker turns his head and the gaze point 10b moves to the gaze point 10a on the left side of the screen 4, the input device 8 changes the reception strength of the receiver 8a or 8b to the reception strength of the receiver 8c or 8d. It detects that the screen 4 has become larger and sends an instruction to the CPU 5 to scroll the display on the screen 4 to the right. Similarly, the reception strength of receivers 8c and 8d is
When it becomes stronger than a or 8b, the input device 8 instructs the CPU 5 to scroll the display on the screen 4 to the left.

Furthermore, if there is a difference in reception strength between the input device and the receivers 8a and 8c and the receivers 8b and 8d, the CPU sends an instruction to scroll the display on the CRT screen 4 up or down.
It has the function of giving instructions to 5.

The embodiment of the present invention described above detects the reception intensity of each ultrasonic receiver and compares it with the reception intensity at the correct position stored in advance, thereby detecting the unconscious movement of the worker. It detects the approach, retreat, and rotation of a certain head and automatically scrolls the screen to keep the worker's gaze point at the center of the CRT screen 4, and also adjusts the screen to the worker's desired screen size. Can be enlarged or reduced.

Next, FIG. 8 shows the operation of the second embodiment of the present invention.
This will be explained in detail using the flow shown in . (1) Read the reception strength of the receivers 8a to 8d in the current state, read out the reception strength of the receivers 8a to 8d in the basic position that was stored in advance at the beginning of use of the device, and enlarge the display screen. , reduction, and scrolling, a preset threshold value for the reception strength difference is read out (steps 81 to 83).

(2) The total value of the reception strengths of the receivers 8a to 8d in the current state read out in step 81 is compared with the basic reception strength read out in step 82 (step 84).

(3) As a result of the comparison in step 84, if the current total value>basic value+threshold value, the input device 8 determines that the worker is approaching the display screen and looking at the CRT 1, and instructs enlargement. Then, the CPU 5 performs control to enlarge the current display screen by 1.5 times (step 85).

(4) As a result of the comparison in step 84, if the current total value<basic value-threshold value, the input device 8 determines that the operator is looking at the CRT 1 away from the display screen, and issues a reduction instruction. and the CPU 5 reduces the current display screen to 1/1.5.
Control is performed to display the image in a reduced size (step 86).

(5) As a result of the comparison in step 84, if none of the above two conditions are met, the enlargement or reduction of the display screen is not controlled.

(6) The total value of the reception strengths of the receivers 8a and 8b is compared with the total value of the reception strengths of the receivers 8c and 8d (step 87).

(7) As a result of the comparison in step 87, 8a+
If the reception strength of 8b>the reception strength of 8c+8d, the input device 8 determines that the worker is gazing at the left side of the screen,
To move the left display to the center, change the current display screen by 1.
Control is performed so that the display is scrolled to the right by /4 screens (step 88).

(8) As a result of the comparison in step 87, 8a+
If the reception strength of 8b<8c+8d, the input device 8 determines that the worker is gazing at the right side of the screen,
To move the right display to the center, change the current display screen by 1.
Control is performed so that the display is scrolled to the left by /4 screens (step 89).

(9) As a result of the comparison in step 87, if none of the above two conditions are met, the display screen is not controlled.

(10) Next, the total value of the reception strengths of the receivers 8a and 8c is compared with the total value of the reception strengths of the receivers 8b and 8d (step 90).

(11) As a result of the comparison in step 90, 8a
When the reception strength of +8c>the reception strength of 8b+8d, the input device 8 determines that the worker is gazing at the upper part of the screen, and in order to move the upper display to the center, the input device 8 reduces the current display screen by 1/4 The display is controlled to be scrolled down by the amount of the screen (step 91).

(12) As a result of the comparison in step 90, 8a
If the reception strength is +8c<8b+8d, the input device 8 determines that the worker is gazing at the bottom of the screen, and in order to move the bottom display to the center, the input device 8 reduces the current display screen to 1/4. The display is controlled to be scrolled upwards by the amount of the screen (step 92).

(13) As a result of the comparison in step 90, if none of the above two conditions are met, the display screen is not controlled.

According to the man-machine device according to the second embodiment of the present invention as described above, the CRT
The screen can be enlarged, reduced, and scrolled at will without interrupting work and thinking using the mouse 1 and the mouse 2 or a keyboard (not shown), thereby improving interface performance.

[0051] In the embodiment of the present invention described above, the movement, tilt, rotation, etc. of the body of the worker or a part thereof is detected using a piezoelectric switch, an ultrasonic receiver, etc. However, the present invention can also be configured using other known sensor devices such as a distance measuring device using infrared rays, an eye movement detecting device, and a line-of-sight direction detecting device.

[0052]Although the above-described embodiment of the present invention has been described with respect to the screen of one display device, the present invention
It can also be applied to systems equipped with multiple display devices, multi-window screens, etc.

[0053]

[Effects of the Invention] As explained above, according to the present invention, unconscious movements of the worker can be detected and the mouse, light pen, etc.
Independently from the main work of the worker using the keyboard, etc.
You can enlarge, reduce, and scroll the screen.
Good man-machine interface can be performed without interrupting work and thinking.

[Brief explanation of drawings]

FIG. 1 is a diagram illustrating a first embodiment of the present invention.

FIG. 2 is a block diagram showing the configuration of a first embodiment of the present invention.

FIG. 3 is a diagram illustrating the relationship between the position of the center of gravity of a worker and the operation of a piezoelectric switch.

FIG. 4 is a flowchart explaining the operation.

FIG. 5 is a diagram illustrating a modification of the first embodiment of the present invention.

FIG. 6 is a diagram illustrating a second embodiment of the present invention.

FIG. 7 is a block diagram showing the configuration of a second embodiment of the present invention.

FIG. 8 is a flowchart explaining the operation.

[Explanation of symbols]

1 CRT 2 Mouse 3, 8 Input device 4 CRT screen 5 CPU 7 Chair 9 Ultrasonic transmitter 3a-3c Piezoelectric switch 8a-8d Ultrasonic receiver

Claims (6)

[Claims] 1. An interactive computer system having a display means and one or more input means, wherein the input means is a dedicated input means for instructing enlargement, reduction, and scrolling of a screen on the display means; A man-machine device characterized in that the means can perform operation input in parallel with other input means. 2. An interactive computer system having a display means and one or more input means, the input means being a dedicated input means for instructing enlargement or reduction of a screen on the display means, the dedicated input means being A man-machine device comprising a device for detecting movement, inclination, and rotation of a worker's body, a part thereof, or the body weight. 3. An interactive computer system having a display means and one or more input means, wherein the input means is a dedicated input means for instructing scrolling of a screen on the display means, and the dedicated input means is configured to perform an operation. 1. A man-machine device comprising a device that detects movement, tilt, and rotation of a person's body or a part thereof, or body weight. 4. An interactive computer system having a display means and one or more input means, wherein the input means is a dedicated input means for instructing enlargement, reduction, and scrolling of a screen on the display means; A man-machine device characterized in that the means includes a device for detecting movement, inclination, and rotation of the worker's body, a part thereof, or the body weight. 5. The dedicated input means instructs to enlarge, reduce, or scroll the screen based on a signal from a piezoelectric switch provided on the seat of the chair. A man-machine device according to any one of claims 1 to 4. 6. The dedicated input means includes an ultrasonic or infrared transmitter and receiver, detects movement of the worker's head, and depending on the detection result, enlarges or reduces the screen, or 5. The man-machine device according to claim 1, wherein the device instructs scrolling.