JP5783364B2 - Field device and display control method - Google Patents

Description

  The present invention relates to a field device or the like including a display unit that displays an interface screen for receiving information input and a plurality of infrared switches that receive an operation for switching the display of the interface screen. It relates to field devices.

  FIG. 10 is a diagram showing a configuration of a display functioning as a human machine interface of a conventional field device such as a Coriolis flow meter. Parameters and the like for the field device can be set via the display.

  As shown in FIG. 10, the display device is provided with a display unit 90 such as an LCD, and infrared switches 91, 92, and 93 that can be operated with a glass surface therebetween. The infrared switch is composed of a light emitting unit that emits infrared rays and a light receiving unit that receives infrared rays reflected by a reflector, and so on, so as to determine whether or not a reflector such as a finger is placed at a predetermined position based on the amount of reflected light. It is configured. As shown in FIG. 10, a predetermined number of infrared switches are arranged in a horizontal row from the viewpoint of limiting the location of infrared switches and reducing costs. When moving the cursor displayed on the display unit 90, the right movement of the cursor is operated by the infrared switch 91, the upward movement of the cursor is simultaneously pressed by the infrared switches 92 and 93, and the left movement of the cursor is performed by the infrared switch. By simultaneously pressing 91 and 92 and moving the cursor downward as an operation to the infrared switch 93, etc., the cursor can be moved by the switch.

JP 2003-037563 A JP 2006-260353 A JP 2008-232707 A

  However, the number of operation patterns that can be assigned cannot be increased with a combination of states (on / off) of infrared switches that are limited in number. If the number of switches is increased, the number of switches increases the number of operation patterns, but the increase in switches is costly. Furthermore, there is also a problem that the user cannot intuitively know which combination is to be operated by simultaneously pressing a plurality of switches. In the case of simultaneous pressing, two or more fingers are required, but there is a problem that it is difficult to operate unless the operation part is in front of the user. There is also a problem that the finger cannot be pressed well, especially when the finger is thick. In addition, when pressing simultaneously, the user often uses his index finger and middle finger. However, since the index finger and the middle finger are different in length, it is difficult to simultaneously press the switches arranged on the same plane in a limited space.

  An object of the present invention is to provide a field device or the like with high operability capable of intuitively and easily operating a human machine interface.

The field device according to the present invention is a field device including a display unit that displays an interface screen for receiving information input and a plurality of infrared switches that receive an operation for switching the display of the interface screen. A motion analysis means for detecting that another infrared switch is operated at a predetermined time within a predetermined time after the switch is operated and that the one infrared switch is not operated at the predetermined time; and Motion selection means for selecting a predetermined slide motion based on a detection result, wherein the motion selection means detects that the one infrared switch is not operated at the predetermined time by the motion analysis means. If the predetermined slide motion is selected, the motion analysis means selects the predetermined slide motion. When the one infrared switch is detected to be operated, it is determined that the one infrared switch and the other infrared switch are operated at the same time, and the operation selecting means is the predetermined unit. The display unit executes switching of the display of the interface screen as the slide operation selected by the operation selection unit without selecting a slide operation.
According to this field device, since a slide operation corresponding to the slide operation can be selected, more operations can be performed even when the number of switches is limited. In addition, a plurality of operations can be performed with one finger, and operability can be improved. In addition, intuitive operation is possible.

  The display unit may execute display switching including a sliding motion as the slide motion selected by the motion analysis unit.

  The plurality of infrared switches may be arranged on the same straight line.

  After the operation on the one infrared switch is completed, the operation selecting unit may select the slide operation only when the operation analyzing unit detects that the other infrared switch is operated.

The display control method of the present invention is a display control method for a field device comprising: display means for displaying an interface screen for receiving information input; and a plurality of infrared switches for receiving an operation for switching the display of the interface screen. In the operation analysis step of detecting that another infrared switch is operated at a predetermined time within a predetermined time after the one infrared switch is operated, and that the one infrared switch is not operated at the predetermined time; And a motion selection step of selecting a predetermined slide motion based on the detection result of the motion analysis step. In the motion selection step, the one infrared switch is operated at the predetermined time by the motion analysis step. If it is detected that there is not, the predetermined slide operation is performed. If the operation analysis step detects that the one infrared switch is operated at the predetermined time, the one infrared switch and the other infrared switch are operated simultaneously. In the operation selection step, the predetermined slide operation is not selected, and the display unit performs display switching of the interface screen as the slide operation selected by the operation selection unit. To do.
According to this display control method, a slide operation corresponding to a slide operation can be selected, so that even when the number of switches is limited, more operations can be performed. In addition, a plurality of operations can be performed with one finger, and operability can be improved. In addition, intuitive operation is possible.

  According to the field device of the present invention, since a slide operation corresponding to the slide operation can be selected, more operations can be performed even when the number of switches is limited. In addition, a plurality of operations can be performed with one finger, and operability can be improved. In addition, intuitive operation is possible.

  According to the display control method of the present invention, a slide operation corresponding to a slide operation can be selected, so that even when the number of switches is limited, more operations can be performed. In addition, a plurality of operations can be performed with one finger, and operability can be improved. In addition, intuitive operation is possible.

The block diagram which shows the circuit structural example of a field apparatus. The external appearance front view of a display. Explanatory drawing of a slide operation | movement. Explanatory drawing of a slide operation | movement. The table | surface which shows the example of a combination of slide operation | movement. The flowchart which shows operation | movement of a field apparatus. The external appearance front view of the field device of another example. The principal part sectional drawing of the field apparatus of another example. The figure which shows the relationship between the distance of a reflective material and an infrared switch, and the output voltage of an infrared light receiving element. The figure which shows the human machine interface of the conventional field device.

  Hereinafter, an embodiment of a field device according to the present invention will be described.

  FIG. 1 is a block diagram showing a configuration example of a field device, and FIG. 2 is an external front view of a display. 1 and 2, a field device including three infrared switches will be described as an example.

  As shown in FIG. 1, the field device of the present embodiment includes a first switch receiving unit 1 and a second switch that receive signals from a first switch 31, a second switch 32, and a third switch 33 (FIG. 2), which will be described later. Based on the signals from the switch receiver 2 and the third switch receiver 3, and the first switch receiver 1, the second switch receiver 2 and the third switch receiver 3, the operation status of the switch group is analyzed. The operation analysis unit 4, the operation selection unit 5 for selecting an operation corresponding to the operation on the switch group based on the analysis result in the operation analysis unit 4, and the current display information on the display unit 30 (FIG. 2) are held. The display state holding unit 6, the updating unit 7 for outputting an instruction to update the display state and field device parameters in the display means 30 (FIG. 2), and the field device parameters. Comprises a parameter holding section 8 for holding data, a communication reception unit 9 receives information from the outside by the communication, the.

  As shown in FIG. 2, the field device is provided with a display device 100 as a human machine interface, and a display means 30 having a display screen composed of LEDs or the like is arranged at the center of the display device 100. Yes. Below the display screen, a first switch 31, a second switch 32, and a third switch 33, which are infrared switches, are arranged in a horizontal row. Each of the first switch 31 to the third switch 33 includes an infrared light emitting element (not shown) and an infrared light receiving element (not shown), and is turned on when the reflecting object 10 such as a finger or a hand is detected by infrared rays.

  Next, the operation of the field device of this embodiment will be described.

  When a user holds a finger or hand over the first switch 31 as the reflector 10, a cover (not shown) made of a transparent member or the like of the display 100 is irradiated from the infrared light emitting element (not shown) of the first switch 31. The infrared rays emitted through the reflector 10 are reflected by the reflector 10. And the infrared light receiving element (not shown) with which the 1st switch receiving part 1 is provided receives the reflected light which returned via the cover of the indicator. Similarly, when the user holds a finger or the like over the second switch 32, an infrared light receiving element (not shown) provided in the second switch receiving unit 2 receives the reflected light and receives a signal. When the user holds a finger or the like over the third switch 33, an infrared light receiving element (not shown) provided in the third switch receiving unit 3 receives the reflected light.

  Each of the switch receiving units 1 to 3 generates a voltage corresponding to the intensity of the reflected light received by the infrared light receiving element, and determines that the switch is pressed (ON) when the voltage exceeds a predetermined threshold voltage. To do. In the following description, holding a finger or the like without touching the switch is referred to as pressing the switch for convenience.

  When any one of the first switch 31 to the third switch 33 is pressed, the first switch receiving unit 1 to the third switch receiving unit 3 corresponding to the pressed switch receive a signal (FIG. 1).

  As shown in FIG. 1, signals from the first switch receiving unit 1 to the third switch receiving unit 3 are transmitted to the operation analysis means 4. The operation analysis means 4 includes a switch operation analysis unit 4a that analyzes the operation of each switch 31 to 33 (ON, OFF), duration, and the like, and a slide operation analysis unit 4b that analyzes the presence or absence of a slide operation on the switch. Is provided. The operation selection unit 5 selects an operation such as display or parameter change in the display unit 30 using the analysis result of the operation analysis unit 4 and the current display information held in the display state holding unit 6. Based on the selected operation, the updating unit 7 changes the display state of the display unit 30 or changes the parameter stored in the parameter holding unit 8. The change of the display state is, for example, a change of the measurement display result, a horizontal movement of the display, a vertical movement, a change of the display process value, a numeric digit movement, a numeric increment, a numeric decrement or the like.

  The updating unit 7 changes the display state of the display unit 30 based on information received from the outside from the communication receiving unit 9 or changes the parameters stored in the parameter holding unit 8.

  3 and 4 are diagrams for explaining the sliding operation. In the field device of the present embodiment, when a slide operation on the first switch 31 to the third switch 33 is detected, a slide operation corresponding to the slide operation is executed. When one of the switches 31 to 33 is pressed and then another switch is pressed within a predetermined time (for example, 100 msec), the motion analysis unit 4 recognizes the slide operation. When the slide operation is recognized, in the screen display of the display means 30, for example, the display state is changed, for example, the cursor slides or the display screen is switched according to the display state history.

  FIG. 3A shows an example in which the first switch 31 is pressed within a predetermined time after the second switch 32 is pressed, and FIG. 3B shows a state after the display state change of the display means 30 thereafter. Is a display example. Specifically, from the state in which “Basic Setup” and “Tag”, “Long Tag”, and “Display config” in the lower hierarchy are displayed (FIG. 3A), the display in the upper hierarchy of “Basic Setup” It is an example changed to (FIG. 3 (B)). After the change, “Main Menu” that is an upper layer of “Basic Setup” and “Basic Setup”, “Detailed Setup”, and “Review device info” that are lower than “Main Menu” are displayed. The user can switch the display state only by performing a slide operation of moving the finger or the like as the reflector 10 from the front surface of the second switch 32 to the front surface of the first switch 31. In addition, since the display is switched so that the cursor is moved in the same direction as the slide operation, the relationship between the slide operation and the development of the screen display can be easily grasped.

  4A specifically shows an example in which the third switch 33 is pressed within a predetermined time since the second switch 32 is pressed, and FIG. 4B shows the display means 30 thereafter. It is an example of a display after a display state change. From the state where the value of “DEN” (density) is displayed ((A) in FIG. 4), it is changed to “TMP” (temperature) which is set to be displayed to the right of “DEN” (density). This is an example (FIG. 4B). The user can switch the display state only by performing a slide operation for moving the finger or the like as the reflector 10 from the front surface of the second switch 32 to the front surface of the third switch 33. Also in this case, since the display is switched so that the cursor is slid in the same direction as the slide operation, the relationship between the slide operation and the development of the screen display can be easily grasped. The display may be switched so that the cursor is moved in the direction opposite to the direction of the slide operation. For example, when the finger or the like that is the reflecting object 10 is slid to the right as if turning the paper, the cursor may be moved to the left.

  FIG. 5 is a table showing examples of combinations of sliding operations.

  The motion analysis unit 4 analyzes the on / off state of each of the switches 31 to 33 and the duration thereof, and selects a sliding motion based on the order in which the motion selection unit 5 is pressed. Each slide operation is associated with the order of pressing. In the example shown in FIG. 5, when the first switch 31 is pressed first, the second switch 32 is pressed second, and the third switch 33 is pressed third, the operation selecting means 5 is the sliding operation A. Select. The update unit 7 updates the display unit 30 corresponding to the slide operation A, or changes the parameter stored in the parameter holding unit 8.

  For example, when pressing the switches 31 to 33 arranged in a horizontal row from the third switch 33, which is the rightmost switch, in the order of the second switch 32 and the first switch 31, the display on the display means 30 is displayed If it is associated with the slide operation D of returning to the display state, a more intuitive operation becomes possible. The operation of returning the display of the display means 30 to the previous display state can be executed based on the display state history.

  FIG. 6 is a flowchart showing the operation of the field device. Details of the operation will be described below with reference to FIG.

  The switch operation analysis unit 4a of the operation analysis unit 4 determines whether any one of the switches 31 to 33 is pressed (Step S1). If the result of determination in step S1 is that the switch has not been pressed (step S1: N), processing returns to step S1.

  If the switch is pressed as a result of the determination in step S1 (step S1: Y), the slide motion analysis unit 4b of the motion analysis unit 4 determines whether another switch is pressed within a predetermined time. (Step S2). The other switches are switches other than the switch pressed in step S1. For example, if the first switch 31 is pressed in step S1, it is determined whether the second switch 32 or the third switch 33 is pressed within a predetermined time.

  If the result of determination in step S2 is that no other switch has been pressed within a predetermined time (step S2: N), the operation selection means 5 selects an operation corresponding to the switch pressed in step S1 (step S2). S3), the process proceeds to step S1.

  As a result of the determination in step S2, if another switch is pressed within a predetermined time (step S2: Y), the slide motion analysis unit 4b determines whether another switch is pressed within the predetermined time. (Step S4). The other switches are switches other than the switches pressed in step S1 and step S2. For example, when the first switch 31 is pressed in step S1 and the second switch 32 is pressed in step S2, it is determined whether the third switch 33 is pressed within a predetermined time. The other switch may be a switch other than the switch pressed in step S2. For example, when the first switch 31 is pressed in step S1 and the second switch 32 is pressed in step S2, it is determined whether the first switch 31 or the third switch 33 is pressed within a predetermined time. judge.

  If the result of determination in step S4 is that no other switch has been pressed within the predetermined time (step S4: N), the action selection means 5 selects the corresponding slide action (step S5), and the process goes to step S1. Return. For example, when the first switch 31 is pressed in step S1 and the second switch 32 is pressed in step S2, the first switch 31 is pressed first and the second switch 32 is pressed second. The slide operation B in the case of being performed is selected (FIG. 5). In this case, for example, display switching corresponding to FIG. 3 or 4 is executed.

  If the result of determination in step S4 is that another switch has been pressed within a predetermined time (step S4: Y), the action selection means 5 selects the corresponding slide action (step S6) and returns to step S1. . For example, when the first switch 31 is pressed in step S1, the second switch 32 is pressed in step S2, and the third switch 33 is pressed in step S4, the first switch 31 is first. The slide operation A when the second switch 32 is pressed second and the third switch 33 is pressed third is selected (FIG. 5).

  It should be noted that the switch operation analysis unit 4a can also be configured to determine whether or not the switch that was being pressed immediately before has been released (turned off) when determining in step S2 or step S4. Then, the operation selection means 5 may affirm the determinations in steps S2 and S4 only when it is confirmed that the switch pressed immediately before is turned off. For example, even when it is recognized that the first switch 31 is pressed in step S1 and the second switch 32 is pressed within a predetermined time in step S2, the first switch 31 is determined at the time of determination in step S2. By eliminating the case where the switch 31 and the second switch 32 are pressed simultaneously, the sliding operation and the simultaneous pressing of the two switches can be reliably distinguished.

  As described above, in the field device according to the present embodiment, after determining that one switch 31 to 33 is turned on, it is determined whether or not another switch 31 to 33 is turned on within a predetermined time. When the action analyzing means 4 and the action analyzing means 4 determine that one of the switches 31 to 33 is turned on and then determine that the other switches 31 to 33 are turned on within a predetermined time, And a motion selection means 5 for selecting a predetermined slide motion. For this reason, even when the number of switches is limited, more operations are possible. In addition, a plurality of operations can be performed with one finger, and operability can be improved. In addition, intuitive operation is possible.

  In the present embodiment, the switches 31 to 33 are all used for the slide operation, but it may be configured to use only specific switches. Also, the sliding operation can be configured to start from a specific switch. For example, it is possible to prevent the erroneous detection of the slide operation by limiting the slide operation to start from the second switch 31.

  In the present embodiment, the switches 31 to 33 are arranged in a horizontal row, but the arrangement of the switches is arbitrary. It is not limited to a single horizontal row, but may be arranged vertically and horizontally, and vertically.

  FIG. 7 is an external front view of another example field device.

  In the display device 200 of FIG. 7A, the display screen of the display means 40 is provided on the front surface of the display device 200. A first switch 41, a second switch 42, and a third switch 43 are provided at the bottom of the display screen. Other configurations are the same as those of the field device 100 of the present embodiment. Thus, by arranging the switches vertically and horizontally, it becomes possible to move the finger in the horizontal direction and the vertical direction, and an intuitive operation can be performed in both directions.

  Moreover, it is possible to increase the number of operation patterns by making it possible to identify a sliding operation by another switch while pressing one switch. For example, it is possible to provide an operation pattern in which a slide operation is performed so that the second switch and the third switch are sequentially turned on while the first switch 41 is pressed. In this case, since the operation pattern can be distinguished from the slide operation in which only the second switch and the third switch are sequentially turned on without pressing the first switch 41, the operation pattern is increased. Can be made.

  In the display device 300 of FIG. 7B, the display screen of the display means 50 is provided on the front surface of the display device 300. A first switch 51, a second switch 52,..., A ninth switch 59 are provided at the bottom of the display screen. Other configurations are the same as those of the display 100.

  As described above, by arranging the switches in a grid pattern, it is possible to perform a slide operation of moving a finger not only vertically and horizontally but also in an oblique direction, and a more intuitive operation can be performed. Further, as shown in FIG. 7B, an operation using the pointer 60 may be performed. For example, the pointer 60 is moved to the right arrow mark 61 or the left arrow mark 62 by the switch operation or the slide operation, and the pointer 60 is clicked by the switch operation or the slide operation, so that the right arrow mark 61 or the left arrow mark 62 is moved. It is also possible to configure so that the operation mode associated with is selected. In this case, a more flexible operation can be performed.

  FIG. 8 is a cross-sectional view of a main part of a field device configured to identify a sliding operation in the height direction.

  In the display device 400 shown in FIG. 8, the display screen of the display means 70 is provided at a position where the display device 70 can be seen from above, and an infrared switch is disposed at the lower portion of the display screen. When a user holds a finger or hand over the infrared switch as the reflector 10, the infrared light emitted from the infrared light emitting unit 71 made of an infrared light emitting element is reflected on the reflector 10, and the infrared light made of the infrared light receiving element. The light receiving unit 72 receives the reflected light and receives a signal. Infrared rays are reflected to the reflector 10 through a cover 73 made of a transparent member. At this time, the amount of reflected light received by the infrared light receiving unit 72 changes according to the distance between the reflector 10 and the infrared switch.

FIG. 9 is a graph showing the relationship between the distance between the reflector 10 and the infrared switch and the output voltage of the infrared light receiving unit 72. The output voltage of the infrared light receiving unit 72 changes according to the intensity of the reflected light received by the infrared light receiving element. As shown in FIG. 9, the output voltage of the infrared light receiving unit 72 decreases as the reflector 10 moves away from the surface of the display device 400. For example, the output voltage of the infrared receiving section 72, a predetermined time from when the thresholds _{T 1} or less (e.g., 100 msec) within, when it becomes the threshold _{T 2} or less, or, is a threshold _{T 3} than the threshold value _{T 2} or less If it is determined that the reflecting object 10 is moving in a direction of gradually separating. Thus, the distance between the reflector 10 and the display 400 can be determined as a sliding motion in the height direction, and the corresponding sliding motion can be selected. The operation pattern can be increased by appropriately combining such a method with the configuration shown in FIGS.

  In each of the above embodiments, the display state changing operation on the display screen of the display unit 30 has been described as an example of the sliding operation. However, an operation of selecting and inputting numbers and characters may be used as the sliding operation. In this case, for example, numbers and characters can be input by performing a slide operation on the infrared switch group. Note that the plurality of infrared switches may be used for other purposes in addition to receiving an operation for switching the display of the interface screen.

  The scope of application of the present invention is not limited to the above embodiment. The present invention is widely applied to field devices including display means for displaying an interface screen for receiving information input and a plurality of infrared switches for receiving an operation for switching the display of the interface screen.

4 motion analysis means 5 motion selection means 31 1st switch (infrared switch)
32 Second switch (infrared switch)
33 Third switch (infrared switch)

Claims (5)

In a field device comprising: a display unit that displays an interface screen for receiving information input; and a plurality of infrared switches that receive an operation for switching the display of the interface screen.
An operation analysis means for detecting that another infrared switch is operated at a predetermined time within a predetermined time after the one infrared switch is operated, and that the one infrared switch is not operated at the predetermined time;
An action selecting means for selecting a predetermined slide action based on a detection result by the action analyzing means;
With
The operation selecting means selects the predetermined slide operation when the operation analyzing means detects that the one infrared switch is not operated at the predetermined time,
If it is detected by the motion analysis means that the one infrared switch is operated at the predetermined time, it is determined that the one infrared switch and the other infrared switch are operated simultaneously, The operation selection means does not select the predetermined slide operation,
The field device according to claim 1, wherein the display unit performs switching of the display of the interface screen as the slide operation selected by the operation selection unit.   The field device according to claim 1, wherein the display unit performs display switching including a sliding motion as the slide motion selected by the motion analysis unit.   The field device according to claim 1, wherein the plurality of infrared switches are arranged on the same straight line.   The operation selecting means selects the slide operation only when the operation analyzing means detects that the other infrared switch has been operated after the operation on the one infrared switch is completed. The field device according to any one of claims 1 to 3. In a display control method for a field device comprising: display means for displaying an interface screen for receiving information input; and a plurality of infrared switches for receiving an operation for switching the display of the interface screen.
An operation analysis step of detecting that another infrared switch is operated at a predetermined time within a predetermined time after the one infrared switch is operated, and that the one infrared switch is not operated at the predetermined time;
An operation selection step of selecting a predetermined slide operation based on the detection result of the operation analysis step,
In the operation selection step, when it is detected by the operation analysis step that the one infrared switch is not operated at the predetermined time, the predetermined slide operation is selected,
When it is detected by the operation analysis step that the one infrared switch is operated at the predetermined time, it is determined that the one infrared switch and the other infrared switch are operated simultaneously, In the operation selection step, the predetermined slide operation is not selected,
The display control method, wherein the display unit executes display switching of the interface screen as the slide operation selected by the operation selection unit.

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