WO2022190511A1 - Photoelectric sensor and screen display method therefor - Google Patents

Photoelectric sensor and screen display method therefor Download PDF

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Publication number
WO2022190511A1
WO2022190511A1 PCT/JP2021/046798 JP2021046798W WO2022190511A1 WO 2022190511 A1 WO2022190511 A1 WO 2022190511A1 JP 2021046798 W JP2021046798 W JP 2021046798W WO 2022190511 A1 WO2022190511 A1 WO 2022190511A1
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WIPO (PCT)
Prior art keywords
photoelectric sensor
screen
button
setting
teaching
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PCT/JP2021/046798
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French (fr)
Japanese (ja)
Inventor
佳樹 谷
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オムロン株式会社
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Publication of WO2022190511A1 publication Critical patent/WO2022190511A1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled

Definitions

  • the present invention relates to a photoelectric sensor and its screen display method.
  • Photoelectric sensors are widely used in the manufacturing and inspection processes of industrial products, and are being multi-functionalized and miniaturized to meet various needs.
  • a display unit of this type of photoelectric sensor one using a dot-matrix display is known, as described in Patent Document 1, for example.
  • a dot-matrix display can display more information than a 7-segment LED (light-emitting diode), so the degree of freedom of display can be increased.
  • buttons due to the miniaturization of photoelectric sensors, it is difficult to increase the size of the display and provide a sufficient number of buttons. In addition to this situation, against the backdrop of the multifunctionality of photoelectric sensors, the operation procedure of buttons for setting various setting items of the photoelectric sensors is becoming complicated.
  • photoelectric sensors equipped with multiple teaching means are increasing in order to automatically set appropriate judgment thresholds in various usage environments.
  • a photoelectric sensor equipped with three types of buttons a teach button, select button 1 (UP button), and select button 2 (DOWN button), a long press of the DOWN button activates the detailed setting function, and a short press of the teach button activates the detailed setting function. Repeating twice activates a certain teaching, and pressing and holding the teach button activates another teaching.
  • a photoelectric sensor provided with three types of buttons a mode button, a display button, and a setting button
  • a long press of the mode button activates the detailed setting function
  • a long press of the display button activates a display screen switching function.
  • buttons to be input-operated differs depending on the setting function to be activated, but even the same button may be pressed for different times if the setting function to be activated is different.
  • teaching refers to a function that automatically determines the determination threshold when the output of the photoelectric sensor is reversed, using the measured distance or the measured value of the amount of light received by the photoelectric sensor.
  • it is necessary to set the object to be measured in the same predetermined state as during operation (for example, without the object to be measured or with the object to be measured), and then perform a predetermined button operation.
  • detailed setting means that the user manually determines sensing parameters other than the threshold.
  • display switching means that when the threshold value, input/output state, measured distance and amount of light received by the photoelectric sensor are displayed on the display unit, the user selects the content to be displayed from a plurality of predetermined candidates. means to choose.
  • an object of the present invention is to solve such problems and to propose a photoelectric sensor and a screen display method thereof that can easily set various setting items.
  • the photoelectric sensor according to the present invention includes a button and a display section.
  • the display unit displays a plurality of setting items of the photoelectric sensor in response to a first operation on the button, and when teaching of the photoelectric sensor is selected from among the plurality of setting items by a second operation on the button. , displays a screen that guides the button input operation for executing the teaching of the photoelectric sensor. Accordingly, the user can perform teaching of the photoelectric sensor while referring to the screen that guides the input operation of the button for performing teaching of the photoelectric sensor without memorizing in advance the operation procedure of the button for performing teaching. can be properly executed.
  • the guidance of the input operation means that the state of the measurement object to be placed by the user and the button operation to be executed are indicated on the display section of the photoelectric sensor.
  • the display unit may display a screen for setting the selected setting item.
  • a user can select an arbitrary setting item from a plurality of setting items and appropriately set the selected setting item by memorizing at least the operation procedure of the buttons for displaying the plurality of setting items. can. This eliminates the need for the user to individually memorize the button operation procedures for activating various setting functions.
  • a first operation of the button for displaying a plurality of setting items of the photoelectric sensor on the display unit and a second operation of the button for selecting one of the plurality of setting items are different operations. It's okay.
  • the display unit displays a plurality of setting items of the photoelectric sensor in response to a first button operation, and displays a plurality of setting items in response to a second button operation.
  • the display unit displays a screen for guiding the input operation of the button for executing the photoelectric sensor teaching.
  • the user can select an arbitrary setting item from the plurality of setting items and set the selected setting item appropriately by memorizing at least the operation procedure of the buttons for displaying the plurality of setting items. be able to. This eliminates the need for the user to individually memorize the button operation procedures for activating various setting functions.
  • FIG. 1 is a perspective view of a photoelectric sensor according to an embodiment of the invention
  • FIG. 1 is a side view of a photoelectric sensor according to an embodiment of the invention
  • FIG. It is a bottom view of the photoelectric sensor in connection with embodiment of this invention.
  • It is an example of a screen displayed on the display unit of the photoelectric sensor according to the embodiment of the present invention.
  • It is an example of the home screen for various settings displayed on the display unit of the photoelectric sensor according to the embodiment of the present invention.
  • FIG. 7 is a transition diagram of screens showing setting items of “teaching” related to the embodiment of the present invention
  • FIG. 4 is an explanatory diagram of two-point teaching according to the embodiment of the present invention;
  • FIG. 4 is an explanatory diagram of background teaching according to the embodiment of the present invention
  • FIG. 4 is an explanatory diagram of work teaching according to the embodiment of the present invention
  • FIG. 4 is an explanatory diagram of background reference teaching according to the embodiment of the present invention
  • It is an example of a screen that guides the procedure of button input operation for setting two-point teaching according to the embodiment of the present invention.
  • It is an example of the screen for setting the threshold value of the photoelectric sensor according to the embodiment of the present invention.
  • It is an example of the screen for setting the threshold value of the photoelectric sensor according to the embodiment of the present invention.
  • It is an example of the screen for setting the threshold value of the photoelectric sensor according to the embodiment of the present invention.
  • FIG. 1 is a block diagram showing the configuration of a photoelectric sensor according to an embodiment of the present invention
  • FIG. 1 to 3 respectively show an example of a perspective view, a side view, and a bottom view of a photoelectric sensor 10 according to an embodiment of the invention.
  • the photoelectric sensor 10 includes a right button 51, a left button 52, and an enter button 53 as buttons for the user to set and input various setting items.
  • the photoelectric sensor 10 includes a display section 60 that displays various information (for example, measurement results, various setting items, etc.).
  • the display unit 60 is, for example, a dot matrix display (for example, a liquid crystal display).
  • FIG. 4 shows an example of a monitor screen 80 displayed on the display unit 60.
  • the monitor screen 80 is displayed on the display unit 60 when the photoelectric sensor 10 is not operated for setting, and shows information including the operational status of the photoelectric sensor 10 .
  • the monitor screen 80 shown in FIG. 4 is an example of displaying the distance measurement result.
  • the number “3500” indicates the measured distance
  • the number "2500” indicates the threshold
  • "2" indicates the channel
  • the number "90" indicates the light receiving margin.
  • FIG. 5 shows an example of a home screen 70 for various settings displayed on the display unit 60.
  • FIG. 5 When a predetermined button operation (for example, long press of decision button 53 for 3 seconds) is input, display unit 60 displays home screen 70 .
  • a predetermined button operation for example, long press of decision button 53 for 3 seconds
  • display unit 60 displays home screen 70 .
  • a predetermined button operation for displaying the home screen 70 corresponds to the "first operation".
  • a screen 71 is an example of a screen showing setting items of "teaching”.
  • a screen 72 is an example of a screen showing setting items of "threshold setting”.
  • Threshold setting means that the user manually determines the threshold without using the teaching function.
  • a screen 73 is an example of a screen showing a setting item of "switch display screen”.
  • a screen 74 is an example of a screen showing setting items of "detailed settings”.
  • the user operates the right button 51 or the left button 52 to cyclically display each setting item displayed on the home screen 70 in the right or left direction, and operates the decision button 53 to select one of them. You can select one setting item.
  • a button operation for selecting any one setting item from the home screen 70 corresponds to a "second operation".
  • the screen 71 showing the setting item "teaching" when the screen 71 showing the setting item "teaching" is selected from the home screen 70, the user operates the right button 51 or the left button 52 to perform four types of teaching, as shown in FIG.
  • the screens 71-1, 71-2, 71-3, and 71-4 showing the setting items are cyclically displayed in the right or left direction, and the decision button 53 is operated to select one of the setting items. can do.
  • the screen 71-1 is a screen showing setting items for two-point teaching.
  • the screen 71-2 is a screen showing setting items for background teaching.
  • the screen 71-3 is a screen showing setting items for work teaching.
  • the screen 71-4 is a screen showing setting items for background-based teaching.
  • the home screen 70 may be configured as follows. (1) Information about the currently selected setting item is displayed in the central portion of the home screen 70 . (2) The information about the setting item may be a setting item name or an illustration corresponding to the setting item. (3) On the left side of the home screen 70, an illustration of the setting item to be selected when the left button 52 is pressed next is displayed in a slightly lighter color and in a slightly obliquely deformed form. (4) On the right side of the home screen 70, the illustration of the setting item to be selected when the right button 51 is pressed next is displayed in a slightly lighter color and in a slightly obliquely deformed form. By configuring the home screen 70 as described in (3) and (4) above, the user can be notified in advance of which setting item will be transitioned to by the next button operation, thereby improving operability.
  • the threshold TH is calculated as (L1+L2)/2.
  • the photoelectric sensor 10 detects the existence of the measurement object 100 when the measurement distance between the measurement object to be detected and the photoelectric sensor 10 is shorter than the threshold value TH.
  • the distance L3 between the photoelectric sensor 10 and the background 90 is measured while the object to be measured is not placed on the background 90.
  • the threshold TH is calculated as L3-d1.
  • the margin d1 is determined according to the distance L3.
  • the photoelectric sensor 10 detects the existence of the measurement object 100 when the measurement distance between the measurement object to be detected and the photoelectric sensor 10 is shorter than the threshold value TH.
  • the distance L4 between the photoelectric sensor 10 and the measurement object 100 is measured with the measurement object 100 placed on the background 90, as shown in FIG.
  • the margin is d2
  • the near side threshold THN is calculated as L4-d2.
  • the margin d2 is determined according to the distance L4.
  • the photoelectric sensor 10 detects the presence of the measurement object 100 when the measured distance between the measurement object to be detected and the photoelectric sensor 10 is between the threshold THN and the threshold THF.
  • the distance L5 between the photoelectric sensor 10 and the background 90 is measured with no object to be measured placed on the background 90 .
  • the margin is d3
  • the near side threshold THN is calculated as L5-d3.
  • the margin d3 is determined according to the distance L5.
  • the photoelectric sensor 10 detects the presence of the measurement object 100 when the measured distance between the measurement object to be detected and the photoelectric sensor 10 is shorter than the threshold THN or longer than the threshold THF.
  • buttons (right side) for executing two-point teaching are displayed as shown in FIG. Screens 71-11 and 71-12 for guiding input operations of the button 51, the left button 52, and the enter button 53) are displayed on the display unit 60.
  • the screen 71-11 displays buttons (the right button 51, the left button 52, and the enter It guides the input operation of the button 53).
  • An illustration indicating that the currently selected setting item is background teaching is displayed on the left side of the screen 71-11.
  • a character string indicating that the currently selected setting item is background teaching is displayed at the upper right of the screen 71-11.
  • a downward arrow, the decision button 53, and its button operation (Push) are displayed in association with each other.
  • Screen 71-12 displays buttons (right button 51, left button 52, and the input operation of the enter button 53).
  • the screen 71-12 informs that, following the teaching (background teaching) shown on the screen 71-11, object (measurement object) teaching will be executed if the user presses the decision button 53.
  • buttons the right button 51, the left button 52, and the enter button 53
  • the buttons can be appropriately operated to measure the distances L1 and L2.
  • a screen is displayed on the display unit 60 to guide the input operation of the buttons (the right button 51, the left button 52, and the enter button 53).
  • the buttons the right button 51, the left button 52, and the enter button 53.
  • a screen is displayed on the display unit 60 for guiding input of buttons for executing background teaching in the same manner as described above.
  • the photoelectric sensor 10 measures the distance L3 to the background 90, and an appropriate threshold TH is automatically set.
  • Thresholds can be set through For example, screen 72-1 shows a state in which the cursor is placed on the "1" channel.
  • screen 72-1 shows a state in which the cursor is placed on the "1" channel.
  • the user presses the right button 51 or the left button 52 while the screen 72-1 is being displayed on the display unit 60.
  • the screen displayed in transitions from the screen 72-1 to the screen 72-4.
  • the enter button 53 in this state the screen displayed on the display unit 60 changes from the screen 72-4 to the screen 72-5.
  • the threshold of the "2" channel is increased or decreased.
  • the threshold may be manually set by the user through screens 72-7 through 72-18 shown in FIG.
  • the characters "Single” indicating the single point mode are highlighted, indicating that the currently set mode is the single point mode (Single).
  • the screen 72-7 also shows that the currently set threshold value is "2500". In this state, when the user presses the decision button 53, the screen displayed on the display unit 60 changes from the screen 72-7 to the screen 72-8.
  • the screen displayed on the display unit 60 changes from the screen 72-8 to screens 72-9 and 72-10. do.
  • the currently set mode can be switched to the window BGS mode (WindowBGS).
  • the currently set mode can be switched to the window FGS mode (WindowFGS).
  • the screen displayed on the display unit 60 changes from screen 72-9 to screen 72-11.
  • the currently selected channel can be switched to the "1" channel or the "2" channel.
  • the screen displayed on the display unit 60 changes from the screen 72-12 to the screen 72-13.
  • the threshold for the "1" channel increases or decreases from “2500”.
  • the "1" channel threshold becomes “2700” and the enter button 53 is pressed, the "1" channel threshold is changed to "2700" as shown in the screen 72-14.
  • the screen displayed on the display unit 60 changes from screen 72-10 to screen 72-15.
  • the currently selected channel can be switched to the "1" channel or the "2" channel.
  • the decision button 53 while the "2" channel is selected, the screen displayed on the display unit 60 changes from the screen 72-15 to the screen 72-16.
  • the threshold for the "2" channel increases or decreases from “4000”.
  • threshold value and output mode for example, window BGS mode, window FGS mode, etc.
  • An icon may be displayed on the display unit 60 .
  • the screen 73 showing the setting item "switch display screen” is selected from the home screen 70, as shown in FIG. It can be changed through the input operation of the button 51, the left button 52, and the decision button 53).
  • the user By operating the right button 51 or the left button 52, the user can move the screens 73-1, 73-2, 73-3, 73-4 corresponding to the four display modes to the right or left. Any one of the display modes can be selected by cyclically displaying and operating the enter button 53 .
  • the number “3500” indicates the measurement distance
  • the number “2500” indicates the threshold value
  • the numbers “1” and “2” indicate the channels
  • the number “90” indicates the light receiving margin.
  • Standard indicates the mode name.
  • the number “3500” indicates the measured distance
  • the numbers “1” and “2” indicate channels
  • Simple indicates the mode name.
  • the number “3500” indicates the measured distance
  • the numbers “1” and “2” indicate channels
  • P3700 indicates the peak value of the measured distance
  • B3300 indicates the bottom value of the measured distance.
  • Peak Bottom indicates the mode name.
  • numbers “1” and “2” indicate channels
  • ON/OFF indicates mode names.
  • screens 74-1, 74-2, and 74-3 are examples of screens displayed on the display unit 60 when setting the response time of the photoelectric sensor 10.
  • the response time means the time from when light enters or is blocked by the photoelectric sensor 10 to when the photoelectric sensor 10 responds and the output is inverted.
  • screens 74-4, 74-5, and 74-6 are examples of screens displayed on the display unit 60 when the output mode of the photoelectric sensor 10 is set.
  • Some photoelectric sensors 10 are capable of multiple outputs, and for such photoelectric sensors 10, output items can be individually set for each output.
  • Single point mode (Single) and window BGS mode (WindowBGS) are output modes that can be set to output 1 (Out1).
  • WindowFGS window FGS mode
  • Each of the single point mode, the window BGS mode, and the window FGS mode is well-known, so detailed description thereof will be omitted.
  • FIG. 17 is a flow chart showing the flow of the setting method for the photoelectric sensor 10.
  • the photoelectric sensor 10 determines whether or not a predetermined button operation (for example, a long press of the enter button 53 for 3 seconds) has been input (step 1501).
  • a predetermined button operation for example, a long press of the enter button 53 for 3 seconds
  • step 1501 When a predetermined button operation (for example, long press of the decision button 53 for 3 seconds) is input (step 1501; YES), the display unit 60 displays the home screen 70 (step 1502).
  • a predetermined button operation for example, long press of the decision button 53 for 3 seconds
  • each setting item displayed on the home screen 70 for example, “teaching”, “threshold setting”, “switching display screen”, and “detailed setting”).
  • the user operates each setting item displayed on the home screen 70 (for example, “teaching”, “threshold setting”, “switching display screen”, and “detailed setting”). ”) are cyclically displayed in the right or left direction, and any one of the setting items can be selected by operating and inputting the enter button 53 .
  • buttons (right button 51, left button 52, and enter button 53) for executing teaching.
  • screens 71-11 and 71-12 are displayed (step 1504).
  • the display unit 60 displays screens 72-1, 72-2, 72-3, 72-4, and 72 for setting thresholds. -5, 72-6 are displayed (step 1506).
  • the display unit 60 displays screens 73-1 and 73- for switching the display mode of the screen displayed on the display unit 60. 2, 73-3, and 73-4 are displayed (step 1508).
  • the display unit 60 displays screens 74-1, 74-2, 74-3, 74-4, 74-4, 74-4, 74-2, 74-3, 74-4, 74-2, 74-2, 74-3, 74-4, and 74-4 for inputting detailed settings. 74-5 and 74-6 are displayed (step 1510).
  • FIG. 18 is a block diagram showing the configuration of the photoelectric sensor 10. As shown in FIG. As an example of the photoelectric sensor 10, the distance to the measurement object (for example, the measurement object 100) obtained by triangulation using light is measured, and the binary value that is the result of comparison between the distance to the measurement object and the reference distance is obtained. A distance-setting type photoelectric sensor that outputs a signal is illustrated.
  • the photoelectric sensor 10 includes a light projecting section 20 , a light receiving section 30 , a main control section 40 , buttons 50 and a display section 60 .
  • the light projecting section 20 includes a light emitting element 21 and a light projecting lens 22 .
  • the light receiving section 30 includes a light receiving element 31 and a light receiving lens 32 . Light projected from the light emitting element 21 passes through the light projecting lens 22 and is projected onto the measurement object 100 , and light reflected by the measurement object 100 passes through the light receiving lens 32 and enters the light receiving element 31 .
  • the light receiving element 31 for example, a PSD (position detection semiconductor device), a CCD (solid-state imaging device), or the like, which has a light receiving surface of a certain range and can detect the spot position on the light receiving surface of the incident light or the barycentric position of the light amount distribution.
  • a sensor element is used. By detecting the position of the light-receiving spot on the light-receiving surface of the light-receiving element 31 or the barycentric position of the light amount distribution, the distance or displacement of the measurement object 100 can be measured.
  • the main control unit 40 is a microcomputer composed of a processor, memory, and the like.
  • the main control unit 40 controls each unit (the light projecting unit 20, the light receiving unit 30, and the display unit 60) in response to the input operation of the buttons 50 by the user.
  • the main control unit 40 responds to the input operation of the buttons 50 by the user to perform various operations of the photoelectric sensor 10 (for example, distance measurement of the measurement object 100, update of the screen displayed on the display unit 60, and setting change of the photoelectric sensor 10).
  • Buttons 50 collectively refer to right button 51 , left button 52 , and enter button 53 .
  • the main control unit 40 performs various settings of the photoelectric sensor 10 according to the processing procedure shown in FIG.
  • the photoelectric sensor 10 is not limited to the distance setting type photoelectric sensor described above. may be a photoelectric sensor. Alternatively, the photoelectric sensor 10 may be a photoelectric sensor that measures the distance to the measurement object 100 using a TOF (Time Of Flight) method.
  • TOF Time Of Flight
  • the user can use the buttons 50 for executing teaching of the photoelectric sensor 10 without memorizing in advance the operation procedure of the buttons 50 for executing teaching.
  • Teaching of the photoelectric sensor 10 can be performed appropriately while referring to the screen that guides the input operation of .
  • the user can select any setting item from the home screen 70 by memorizing at least the operation procedure of the buttons 50 for displaying the home screen 70, and appropriately set the selected setting item. be able to. This has the advantage that the user does not need to individually memorize the operation procedures of the buttons 50 for activating various setting functions.
  • the photoelectric sensor 10 buttons 51, 52, 53; a display unit 60;
  • the display unit 60 displays a plurality of setting items of the photoelectric sensor 10 when the buttons 51, 52 and 53 are input according to a predetermined operation, and the buttons 51, 52 and 53 after the predetermined operation are displayed.
  • screens 71-11 and 71 for guiding the input operation of the buttons 51, 52 and 53 for setting the teaching of the photoelectric sensor 10 are displayed.
  • a photoelectric sensor 10 displaying -12.
  • Appendix 2 The photoelectric sensor 10 according to Appendix 1, When a setting item other than teaching of the photoelectric sensor 10 is selected from a plurality of setting items by inputting buttons 51, 52, and 53 after a predetermined operation, the display unit 60 displays the selected setting item. The photoelectric sensor 10 displays a screen for setting the .
  • a screen display method for a photoelectric sensor 10 including buttons 51, 52, 53 and a display unit 60 When buttons 51, 52, and 53 are input according to a predetermined operation (step 1501), display unit 60 displays a plurality of setting items of photoelectric sensor 10 (step 1502), When teaching of the photoelectric sensor 10 is selected from among a plurality of setting items by inputting the buttons 51, 52, 53 after a predetermined operation (step 1503), the display unit 60 displays the Display a screen for guiding the input operation of buttons 51, 52, 53 for setting teaching (step 1504), When a setting item other than the teaching of the photoelectric sensor 10 is selected from a plurality of setting items by inputting the buttons 51, 52, 53 after a predetermined operation (steps 1505, 1507, 1509), the A screen display method in which the unit 60 displays a screen for setting the selected setting item (steps 1506, 1508, 1510).
  • Photoelectric sensor 20 for Light emitting part 30
  • Light receiving part 40 for Light receiving part 40
  • Main control part 50 for Buttons 60
  • Display part 70 for Home screen

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  • Theoretical Computer Science (AREA)
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Abstract

The present invention proposes a photoelectric sensor setting method that makes it possible to easily set various setting items. When an input via buttons 50 is performed according to a predefined operation (step 1501), a display unit 60 displays a plurality of setting items of a photoelectric sensor 10 (step 1502). When teaching of the photoelectric sensor 10 is selected from among the plurality of setting items by means of an input via the buttons 50 after the predefined operation (step 1503), the display unit 60 displays a screen guiding an input operation via the buttons 50 for setting teaching of the photoelectric sensor 10 (step 1504). When a setting item other than those for teaching of the photoelectric sensor 10 is selected from among the plurality of setting items by means of an input operation via the buttons 50 (steps 1505, 1507, 1509), the display unit 60 displays a screen for setting the selected setting item (steps 1506, 1508, 1510).

Description

光電センサ及びその画面表示方法Photoelectric sensor and its screen display method
　本発明は、光電センサ及びその画面表示方法に関わる。 The present invention relates to a photoelectric sensor and its screen display method.
　光電センサは、工業製品の製造工程及び検査工程などで幅広く使用されており、様々なニーズに対応するために多機能化及び小型化が進められている。この種の光電センサの表示部として、例えば、特許文献１に記載されているように、ドットマトリクス方式のディスプレイを用いるものが知られている。ドットマトリクス方式のディスプレイによれば、７セグメントＬＥＤ（発光ダイオード）よりも、多くの情報を表示できるため、表示の自由度を高めることができる。 Photoelectric sensors are widely used in the manufacturing and inspection processes of industrial products, and are being multi-functionalized and miniaturized to meet various needs. As a display unit of this type of photoelectric sensor, one using a dot-matrix display is known, as described in Patent Document 1, for example. A dot-matrix display can display more information than a 7-segment LED (light-emitting diode), so the degree of freedom of display can be increased.
特開２０１８－８２７７５号公報JP 2018-82775 A
　しかし、光電センサの小型化に伴い、表示部を大型化することや、十分な数のボタンを設けることが困難な状況にある。このような状況に加え、光電センサの多機能化を背景として、光電センサの各種の設定項目を設定するためのボタンの操作手順が複雑化している。 However, due to the miniaturization of photoelectric sensors, it is difficult to increase the size of the display and provide a sufficient number of buttons. In addition to this situation, against the backdrop of the multifunctionality of photoelectric sensors, the operation procedure of buttons for setting various setting items of the photoelectric sensors is becoming complicated.
　例えば、様々な使用環境においても適切な判定閾値を自動で設定するために複数のティーチング手段を備えた光電センサが増えている。例えばティーチボタン、選択ボタン１（ＵＰボタン）、選択ボタン２（ＤＯＷＮボタン）の３種類のボタンを備える光電センサにおいては、ＤＯＷＮボタン長押しにより、詳細設定の機能が起動され、ティーチボタン短押しを2回繰り返すことにより、あるティーチングが起動され、ティーチボタン長押しにより、別のティーチングが起動される。他方、モードボタン、ディスプレイボタン、及び設定ボタンの３種類のボタンを備える光電センサにおいては、モードボタンの長押しにより、詳細設定の機能が起動され、ディスプレイボタンの長押しにより、表示画面の切り替え機能が起動され、設定ボタンの短押しを２回繰り返すことにより、あるティーチングが起動され、設定ボタンの長押しを２回繰り返すことにより、別のティーチングが起動される。このように、起動される設定機能によって、入力操作されるボタンが異なるだけでなく、同じボタンでも、起動される設定機能が異なれば、押下される時間も異なり得る。 For example, photoelectric sensors equipped with multiple teaching means are increasing in order to automatically set appropriate judgment thresholds in various usage environments. For example, in a photoelectric sensor equipped with three types of buttons: a teach button, select button 1 (UP button), and select button 2 (DOWN button), a long press of the DOWN button activates the detailed setting function, and a short press of the teach button activates the detailed setting function. Repeating twice activates a certain teaching, and pressing and holding the teach button activates another teaching. On the other hand, in a photoelectric sensor provided with three types of buttons, a mode button, a display button, and a setting button, a long press of the mode button activates the detailed setting function, and a long press of the display button activates a display screen switching function. is activated, a certain teaching is activated by repeating the short press of the setting button twice, and another teaching is activated by repeating the long pressing of the setting button twice. As described above, not only the button to be input-operated differs depending on the setting function to be activated, but even the same button may be pressed for different times if the setting function to be activated is different.
　なお、ティーチングとは、光電センサが取得した測定距離あるいは受光量の実測値を使用して、光電センサの出力が反転するときの判定閾値を自動で決定する機能のことをいう。ティーチングを実行するにあたっては、測定対象物を稼働時と同様の所定の状態(例えば測定対象物なし状態や測定対象物あり状態)にした上で、決められたボタン操作を行う必要がある。また、詳細設定とは、閾値以外のセンシングパラメータをユーザが手動で決定することをいう。また、表示切り替えとは、閾値や入出力状態、光電センサが取得した測定距離や受光量などを表示部に表示するときに、表示される内容を予め決められた複数の候補の中からユーザが選択することをいう。 It should be noted that teaching refers to a function that automatically determines the determination threshold when the output of the photoelectric sensor is reversed, using the measured distance or the measured value of the amount of light received by the photoelectric sensor. In order to carry out teaching, it is necessary to set the object to be measured in the same predetermined state as during operation (for example, without the object to be measured or with the object to be measured), and then perform a predetermined button operation. Further, detailed setting means that the user manually determines sensing parameters other than the threshold. In addition, display switching means that when the threshold value, input/output state, measured distance and amount of light received by the photoelectric sensor are displayed on the display unit, the user selects the content to be displayed from a plurality of predetermined candidates. means to choose.
　この種の光電センサの設定機能を起動するには、ユーザは、各機能を起動するためのボタンの操作手順を予め記憶しておく必要があり、操作性に難点があった。特に、光電センサにおいては、ティーチングを実行するためのボタンの操作手順が複雑であることから、ユーザは、ティーチングを実行するためのボタンの操作手順を予め記憶しておくのが困難であった。 　In order to activate the setting function of this type of photoelectric sensor, the user had to memorize in advance the button operation procedure for activating each function, and there was a difficulty in operability. In particular, since the photoelectric sensor has a complicated button operation procedure for teaching, it is difficult for the user to store in advance the button operation procedure for teaching.
　そこで、本発明は、このような課題を解決し、各種の設定項目を容易に設定できる光電センサ及びその画面表示方法を提案することを課題とする。 Therefore, an object of the present invention is to solve such problems and to propose a photoelectric sensor and a screen display method thereof that can easily set various setting items.
　上述の課題を解決するため、本発明に関わる光電センサは、ボタンと、表示部と、を備える。表示部は、ボタンに対する第１の操作に応答して、光電センサの複数の設定項目を表示し、ボタンに対する第２の操作により、複数の設定項目の中から光電センサのティーチングが選択されると、光電センサのティーチングを実行するためのボタンの入力操作を案内する画面を表示する。これにより、ユーザは、ティーチングを実行するためのボタンの操作手順を予め記憶しなくても、光電センサのティーチングを実行するためのボタンの入力操作を案内する画面を参照しながら、光電センサのティーチングを適切に実行することができる。なお、入力操作の案内とは、光電センサの表示部にユーザが設置すべき測定対象物の状態や実行すべきボタン操作を明示することをいう。 　In order to solve the above-described problems, the photoelectric sensor according to the present invention includes a button and a display section. The display unit displays a plurality of setting items of the photoelectric sensor in response to a first operation on the button, and when teaching of the photoelectric sensor is selected from among the plurality of setting items by a second operation on the button. , displays a screen that guides the button input operation for executing the teaching of the photoelectric sensor. Accordingly, the user can perform teaching of the photoelectric sensor while referring to the screen that guides the input operation of the button for performing teaching of the photoelectric sensor without memorizing in advance the operation procedure of the button for performing teaching. can be properly executed. The guidance of the input operation means that the state of the measurement object to be placed by the user and the button operation to be executed are indicated on the display section of the photoelectric sensor.
　表示部は、ボタンに対する第２の操作により、複数の設定項目の中から光電センサのティーチング以外の設定項目が選択されると、選択された設定項目を設定するための画面を表示してもよい。ユーザは、複数の設定項目を表示するためのボタンの操作手順を最低限記憶しておくことにより、複数の設定項目から任意の設定項目を選択し、選択された設定項目を適宜設定することができる。これにより、ユーザは、各種の設定機能を起動するためのボタンの操作手順を個別に記憶しなくて済む。 When a setting item other than the photoelectric sensor teaching is selected from among the plurality of setting items by the second operation on the button, the display unit may display a screen for setting the selected setting item. . A user can select an arbitrary setting item from a plurality of setting items and appropriately set the selected setting item by memorizing at least the operation procedure of the buttons for displaying the plurality of setting items. can. This eliminates the need for the user to individually memorize the button operation procedures for activating various setting functions.
　光電センサの複数の設定項目を表示部に表示するためのボタンに対する第１の操作と、複数の設定項目の中から何れかの設定項目を選択するためのボタンに対する第２の操作は、異なる操作でもよい。 A first operation of the button for displaying a plurality of setting items of the photoelectric sensor on the display unit and a second operation of the button for selecting one of the plurality of setting items are different operations. It's okay.
　本発明に関わる光電センサの画面表示方法では、表示部は、ボタンに対する第１の操作に応答して、光電センサの複数の設定項目を表示し、ボタンに対する第２の操作により、複数の設定項目の中から光電センサのティーチングが選択されると、表示部は、光電センサのティーチングを実行するためのボタンの入力操作を案内する画面を表示する。これにより、ユーザは、ティーチングを実行するためのボタンの操作手順を予め記憶しなくても、光電センサのティーチングを実行するためのボタンの入力操作の手順を案内する画面を参照しながら、光電センサのティーチングを適切に実行することができる。また、ユーザは、複数の設定項目を表示するためのボタンの操作手順を最低限記憶しておくことにより、複数の設定項目から任意の設定項目を選択し、選択された設定項目を適宜設定することができる。これにより、ユーザは、各種の設定機能を起動するためのボタンの操作手順を個別に記憶しなくて済む。 In the photoelectric sensor screen display method according to the present invention, the display unit displays a plurality of setting items of the photoelectric sensor in response to a first button operation, and displays a plurality of setting items in response to a second button operation. When the photoelectric sensor teaching is selected from , the display unit displays a screen for guiding the input operation of the button for executing the photoelectric sensor teaching. Thereby, the user can operate the photoelectric sensor while referring to the screen that guides the procedure of the button input operation for performing the teaching of the photoelectric sensor without memorizing the button operation procedure for performing the teaching in advance. can be properly executed. In addition, the user can select an arbitrary setting item from the plurality of setting items and set the selected setting item appropriately by memorizing at least the operation procedure of the buttons for displaying the plurality of setting items. be able to. This eliminates the need for the user to individually memorize the button operation procedures for activating various setting functions.
　本発明によれば、光電センサの各種の設定項目を容易に設定することができる。　 According to the present invention, various setting items of the photoelectric sensor can be easily set.　
本発明の実施形態に関わる光電センサの斜視図である。1 is a perspective view of a photoelectric sensor according to an embodiment of the invention; FIG. 本発明の実施形態に関わる光電センサの側面図である。1 is a side view of a photoelectric sensor according to an embodiment of the invention; FIG. 本発明の実施形態に関わる光電センサの底面図である。It is a bottom view of the photoelectric sensor in connection with embodiment of this invention. 本発明の実施形態に関わる光電センサの表示部に表示される画面の一例である。It is an example of a screen displayed on the display unit of the photoelectric sensor according to the embodiment of the present invention. 本発明の実施形態に関わる光電センサの表示部に表示される各種設定用のホーム画面の一例である。It is an example of the home screen for various settings displayed on the display unit of the photoelectric sensor according to the embodiment of the present invention. 本発明の実施形態に関わる「ティーチング」の設定項目を示す画面の遷移図である。FIG. 7 is a transition diagram of screens showing setting items of “teaching” related to the embodiment of the present invention; 本発明の実施形態に関わる２点ティーチングの説明図である。FIG. 4 is an explanatory diagram of two-point teaching according to the embodiment of the present invention; 本発明の実施形態に関わる背景ティーチングの説明図である。FIG. 4 is an explanatory diagram of background teaching according to the embodiment of the present invention; 本発明の実施形態に関わるワークティーチングの説明図である。FIG. 4 is an explanatory diagram of work teaching according to the embodiment of the present invention; 本発明の実施形態に関わる背景基準ティーチングの説明図である。FIG. 4 is an explanatory diagram of background reference teaching according to the embodiment of the present invention; 本発明の実施形態に関わる２点ティーチングを設定するためのボタンの入力操作の手順を案内する画面の一例である。It is an example of a screen that guides the procedure of button input operation for setting two-point teaching according to the embodiment of the present invention. 本発明の実施形態に関わる光電センサの閾値を設定するための画面の一例である。It is an example of the screen for setting the threshold value of the photoelectric sensor according to the embodiment of the present invention. 本発明の実施形態に関わる光電センサの閾値を設定するための画面の一例である。It is an example of the screen for setting the threshold value of the photoelectric sensor according to the embodiment of the present invention. 本発明の実施形態に関わる光電センサの閾値を設定するための画面の一例である。It is an example of the screen for setting the threshold value of the photoelectric sensor according to the embodiment of the present invention. 本発明の実施形態に関わる光電センサの画面の表示モードを切り替えるための画面の一例である。It is an example of the screen for switching the display mode of the screen of the photoelectric sensor according to the embodiment of the present invention. 本発明の実施形態に関わる光電センサの詳細設定を入力するための画面の一例である。It is an example of a screen for inputting detailed settings of a photoelectric sensor according to the embodiment of the present invention. 本発明の実施形態に関わる光電センサの設定方法の流れを示すフローチャートである。4 is a flow chart showing the flow of a photoelectric sensor setting method according to an embodiment of the present invention. 本発明の実施形態に関わる光電センサの構成を示すブロック図である。1 is a block diagram showing the configuration of a photoelectric sensor according to an embodiment of the present invention; FIG.
　以下、本発明の一側面に関わる実施形態を図面に基づいて説明する。本発明の実施形態は、本発明の理解を容易にするためのものであり、本発明を限定して解釈するためのものではない。本発明は、その趣旨を逸脱することなく、変更又は改良され得るととともに、本発明には、その等価物も含まれる。なお、同一符号は、同一の構成要素を示すものとし、重複する説明は省略する。 Hereinafter, an embodiment related to one aspect of the present invention will be described based on the drawings. The embodiments of the present invention are for facilitating understanding of the present invention, and are not for limiting interpretation of the present invention. The present invention may be modified or improved without departing from its spirit, and the present invention also includes equivalents thereof. In addition, the same reference numerals denote the same components, and duplicate descriptions are omitted.
［適用例］
　まず、図１乃至図１５を参照しながら、本発明の適用例について説明する。
　図１乃至図３は、それぞれ、本発明の実施形態に関わる光電センサ１０の斜視図、側面図、及び底面図の一例を示す。光電センサ１０は、ユーザが各種設定項目を設定入力するためのボタン類として、右ボタン５１、左ボタン５２、及び決定ボタン５３を備える。光電センサ１０は、各種の情報（例えば、計測結果や各種設定項目など）を表示する表示部６０を備える。表示部６０は、例えば、ドットマトリクス方式のディスプレイ（例えば、液晶ディスプレイ）である。 [Application example]
First, application examples of the present invention will be described with reference to FIGS. 1 to 15. FIG.
1 to 3 respectively show an example of a perspective view, a side view, and a bottom view of a photoelectric sensor 10 according to an embodiment of the invention. The photoelectric sensor 10 includes a right button 51, a left button 52, and an enter button 53 as buttons for the user to set and input various setting items. The photoelectric sensor 10 includes a display section 60 that displays various information (for example, measurement results, various setting items, etc.). The display unit 60 is, for example, a dot matrix display (for example, a liquid crystal display).
　図４は、表示部６０に表示されるモニタ画面８０の一例を示す。モニタ画面８０は、光電センサ１０の設定操作をしないときに表示部６０に表示され、光電センサ１０の稼働状況を含む情報を示す。図４に示すモニタ画面８０は、距離の測定結果を表示する一例であり、この例では、数字「３５００」は、測定距離を示し、数字「２５００」は、閾値を示し、数字「１」及び「２」は、チャネルを示し、数字「９０」は、受光余裕度を示す。 FIG. 4 shows an example of a monitor screen 80 displayed on the display unit 60. FIG. The monitor screen 80 is displayed on the display unit 60 when the photoelectric sensor 10 is not operated for setting, and shows information including the operational status of the photoelectric sensor 10 . The monitor screen 80 shown in FIG. 4 is an example of displaying the distance measurement result. In this example, the number "3500" indicates the measured distance, the number "2500" indicates the threshold, "2" indicates the channel, and the number "90" indicates the light receiving margin.
　図５は、表示部６０に表示される各種設定用のホーム画面７０の一例を示す。予め定められたボタン操作（例えば、決定ボタン５３の３秒間の長押し）が入力されると、表示部６０は、ホーム画面７０を表示する。例えば、図４に示すモニタ画面８０が表示部６０に表示されている状態で、予め定められたボタン操作（例えば、決定ボタン５３の３秒間の長押し）が入力されると、表示部６０に表示される画面は、図４に示すモニタ画面８０から図５に示すホーム画面７０に遷移する。ホーム画面７０を表示するための予め定められたボタン操作は、「第１の操作」に対応する。 FIG. 5 shows an example of a home screen 70 for various settings displayed on the display unit 60. FIG. When a predetermined button operation (for example, long press of decision button 53 for 3 seconds) is input, display unit 60 displays home screen 70 . For example, when the monitor screen 80 shown in FIG. The displayed screen transitions from the monitor screen 80 shown in FIG. 4 to the home screen 70 shown in FIG. A predetermined button operation for displaying the home screen 70 corresponds to the "first operation".
　ここでは、光電センサ１０の複数の設定項目として、「ティーチング」、「閾値設定」、「表示画面の切り替え」、及び「詳細設定」を例示する。画面７１は、「ティーチング」の設定項目を示す画面の一例である。画面７２は、「閾値設定」の設定項目を示す画面の一例である。閾値設定とは、ティーチング機能を使用せずにユーザが手動で閾値を決定することをいう。画面７３は、「表示画面の切り替え」の設定項目を示す画面の一例である。画面７４は、「詳細設定」の設定項目を示す画面の一例である。ユーザは、右ボタン５１又は左ボタン５２を操作入力することにより、ホーム画面７０に表示される各設定項目を右方向又は左方向に巡回表示し、決定ボタン５３を操作入力することにより、何れか一つの設定項目を選択することができる。ホーム画面７０から何れか一つの設定項目を選択するボタン操作は、「第２の操作」に対応する。 Here, as a plurality of setting items of the photoelectric sensor 10, "teaching", "threshold setting", "switching of display screen", and "detailed setting" are exemplified. A screen 71 is an example of a screen showing setting items of "teaching". A screen 72 is an example of a screen showing setting items of "threshold setting". Threshold setting means that the user manually determines the threshold without using the teaching function. A screen 73 is an example of a screen showing a setting item of "switch display screen". A screen 74 is an example of a screen showing setting items of "detailed settings". The user operates the right button 51 or the left button 52 to cyclically display each setting item displayed on the home screen 70 in the right or left direction, and operates the decision button 53 to select one of them. You can select one setting item. A button operation for selecting any one setting item from the home screen 70 corresponds to a "second operation".
　例えば、「ティーチング」の設定項目を示す画面７１がホーム画面７０から選択されると、図６に示すように、ユーザは、右ボタン５１又は左ボタン５２を操作入力することにより、４種類のティーチングの設定項目を示す画面７１－１，７１－２，７１－３，７１－４を右方向又は左方向に巡回表示し、決定ボタン５３を操作入力することにより、何れか一つの設定項目を選択することができる。ここで、画面７１－１は、２点ティーチングの設定項目を示す画面である。画面７１－２は、背景ティーチングの設定項目を示す画面である。画面７１－３は、ワークティーチングの設定項目を示す画面である。画面７１－４は、背景基準ティーチングの設定項目を示す画面である。 For example, when the screen 71 showing the setting item "teaching" is selected from the home screen 70, the user operates the right button 51 or the left button 52 to perform four types of teaching, as shown in FIG. The screens 71-1, 71-2, 71-3, and 71-4 showing the setting items are cyclically displayed in the right or left direction, and the decision button 53 is operated to select one of the setting items. can do. Here, the screen 71-1 is a screen showing setting items for two-point teaching. The screen 71-2 is a screen showing setting items for background teaching. The screen 71-3 is a screen showing setting items for work teaching. The screen 71-4 is a screen showing setting items for background-based teaching.
　なお、ホーム画面７０を以下のように構成してもよい。
（１）現在選択されている設定項目に関する情報がホーム画面７０の中央部分に表示される。
（２）設定項目に関する情報は、設定項目名や設定項目に対応するイラストであってもよい。
（３）ホーム画面７０の左側には、次に左ボタン５２を押したときに選択される設定項目のイラストがやや薄い色で、かつ、少し斜めに変形させた形態にて表示される。
（４）ホーム画面７０の右側には、次に右ボタン５１を押したときに選択される設定項目のイラストがやや薄い色で、かつ、少し斜めに変形させた形態にて表示される。
　ホーム画面７０を上述の（３）及び（４）のように構成することによって、次のボタン操作によってどんな設定項目に遷移するのかを予めユーザに知らせることができ、操作性が向上する。 Note that the home screen 70 may be configured as follows.
(1) Information about the currently selected setting item is displayed in the central portion of the home screen 70 .
(2) The information about the setting item may be a setting item name or an illustration corresponding to the setting item.
(3) On the left side of the home screen 70, an illustration of the setting item to be selected when the left button 52 is pressed next is displayed in a slightly lighter color and in a slightly obliquely deformed form.
(4) On the right side of the home screen 70, the illustration of the setting item to be selected when the right button 51 is pressed next is displayed in a slightly lighter color and in a slightly obliquely deformed form.
By configuring the home screen 70 as described in (3) and (4) above, the user can be notified in advance of which setting item will be transitioned to by the next button operation, thereby improving operability.
　ここで、４種類のティーチングのそれぞれの概略を説明する。 Here, an outline of each of the four types of teaching will be explained.
　２点ティーチングでは、図７に示すように、背景９０に測定対象物１００が置かれていない状態で光電センサ１０と背景９０との間の距離Ｌ１を測定し、次いで、背景９０に測定対象物１００が置かれている状態で光電センサ１０と測定対象物１００との間の距離Ｌ２を測定する。この場合、閾値ＴＨ＝（Ｌ１＋Ｌ２）／２として算出される。検出対象となる測定対象物と光電センサ１０との間の測定距離が閾値ＴＨよりも短い場合には、光電センサ１０は、測定対象物１００の存在を検出する。 In two-point teaching, as shown in FIG. A distance L2 between the photoelectric sensor 10 and the object 100 is measured while the object 100 is placed. In this case, the threshold TH is calculated as (L1+L2)/2. The photoelectric sensor 10 detects the existence of the measurement object 100 when the measurement distance between the measurement object to be detected and the photoelectric sensor 10 is shorter than the threshold value TH.
　背景ティーチングでは、図８に示すように、背景９０に測定対象物が置かれていない状態で光電センサ１０と背景９０との間の距離Ｌ３を測定する。余裕度をｄ１とすると、閾値ＴＨ＝Ｌ３－ｄ１として算出される。余裕度ｄ１は、距離Ｌ３に応じて決定される。検出対象となる測定対象物と光電センサ１０との間の測定距離が閾値ＴＨよりも短い場合には、光電センサ１０は、測定対象物１００の存在を検出する。 In the background teaching, as shown in FIG. 8, the distance L3 between the photoelectric sensor 10 and the background 90 is measured while the object to be measured is not placed on the background 90. Assuming that the margin is d1, the threshold TH is calculated as L3-d1. The margin d1 is determined according to the distance L3. The photoelectric sensor 10 detects the existence of the measurement object 100 when the measurement distance between the measurement object to be detected and the photoelectric sensor 10 is shorter than the threshold value TH.
　ワークティーチングでは、図９に示すように、背景９０に測定対象物１００が置かれている状態で光電センサ１０と測定対象物１００との間の距離Ｌ４を測定する。余裕度をｄ２とすると、近い側の閾値ＴＨＮ＝Ｌ４－ｄ２として算出される。遠い側の閾値ＴＨＦ＝Ｌ４＋ｄ２として算出される。余裕度ｄ２は、距離Ｌ４に応じて決定される。検出対象となる測定対象物と光電センサ１０との間の測定距離が閾値ＴＨＮと閾値ＴＨＦとの間にある場合には、光電センサ１０は、測定対象物１００の存在を検出する。 In work teaching, the distance L4 between the photoelectric sensor 10 and the measurement object 100 is measured with the measurement object 100 placed on the background 90, as shown in FIG. Assuming that the margin is d2, the near side threshold THN is calculated as L4-d2. It is calculated as the far side threshold THF=L4+d2. The margin d2 is determined according to the distance L4. The photoelectric sensor 10 detects the presence of the measurement object 100 when the measured distance between the measurement object to be detected and the photoelectric sensor 10 is between the threshold THN and the threshold THF.
　背景基準ティーチングでは、図１０に示すように、背景９０に測定対象物が置かれていない状態で光電センサ１０と背景９０との間の距離Ｌ５を測定する。余裕度をｄ３とすると、近い側の閾値ＴＨＮ＝Ｌ５－ｄ３として算出される。遠い側の閾値ＴＨＦ＝Ｌ５＋ｄ３として算出される。余裕度ｄ３は、距離Ｌ５に応じて決定される。検出対象となる測定対象物と光電センサ１０との間の測定距離が、閾値ＴＨＮよりも短い場合、又は閾値ＴＨＦより長い場合には、光電センサ１０は、測定対象物１００の存在を検出する。 In the background reference teaching, as shown in FIG. 10, the distance L5 between the photoelectric sensor 10 and the background 90 is measured with no object to be measured placed on the background 90 . Assuming that the margin is d3, the near side threshold THN is calculated as L5-d3. It is calculated as the far side threshold THF=L5+d3. The margin d3 is determined according to the distance L5. The photoelectric sensor 10 detects the presence of the measurement object 100 when the measured distance between the measurement object to be detected and the photoelectric sensor 10 is shorter than the threshold THN or longer than the threshold THF.
　上述の４種類のティーチングの設定項目の中から、２点ティーチングの設定項目を示す画面７１－１が選択されると、図１１に示すように、２点ティーチングを実行するためのボタン類（右ボタン５１、左ボタン５２、及び決定ボタン５３）の入力操作を案内する画面７１－１１，７１－１２が表示部６０に表示される。 When the screen 71-1 showing setting items for two-point teaching is selected from among the four types of setting items for teaching described above, buttons (right side) for executing two-point teaching are displayed as shown in FIG. Screens 71-11 and 71-12 for guiding input operations of the button 51, the left button 52, and the enter button 53) are displayed on the display unit 60. FIG.
　画面７１－１１は、背景９０に測定対象物１００が置かれていない状態で光電センサ１０と背景９０との間の距離Ｌ１を測定するためのボタン類（右ボタン５１、左ボタン５２、及び決定ボタン５３）の入力操作を案内する。画面７１－１１の左側には、現在選択されている設定項目が背景ティーチングであることを示すイラストが表示される。画面７１－１１の右上には、現在選択されている設定項目が背景ティーチングであることを示す文字列が表示される。画面７１－１１の右下には、下向きの矢印と、決定ボタン５３、及びそのボタン操作（Ｐｕｓｈ）が関連づけて表示される。このように表示することによって、ユーザが次に決定ボタン５３を下向きに押せば、背景ティーチングが実行されることをユーザに知らせている。 The screen 71-11 displays buttons (the right button 51, the left button 52, and the enter It guides the input operation of the button 53). An illustration indicating that the currently selected setting item is background teaching is displayed on the left side of the screen 71-11. A character string indicating that the currently selected setting item is background teaching is displayed at the upper right of the screen 71-11. At the bottom right of the screen 71-11, a downward arrow, the decision button 53, and its button operation (Push) are displayed in association with each other. By displaying in this manner, the user is informed that the background teaching will be executed when the user next presses the decision button 53 downward.
　画面７１－１２は、背景９０に測定対象物１００が置かれている状態で光電センサ１０と測定対象物１００との間の距離Ｌ２を測定するためのボタン類（右ボタン５１、左ボタン５２、及び決定ボタン５３）の入力操作を案内する。画面７１－１２は、画面７１－１１が示すティーチング（背景ティーチング）に続いて、ユーザが決定ボタン５３を押せば、オブジェクト（測定対象物）ティーチングが実行されることを知らせている。なお、画面７１－１，７１－１１，７１－１２のそれぞれの左側のイラストに着目して、画面７１－１１と画面７１－１２とを対比すると、、両者は、画面７１－１のイラストをベースにしながら、背景とオブジェクトが選択的に薄い色で表示されるようにしている。このように表示することで、画面７１－１１と画面７１－１２が、上位の設定項目（画面７１－１が示す設定項目）を継承しつつ、さらに、これからどちらの対象に着目してティーチングを行おうとしているか、をユーザに（直感的に）知らしめることができる。 Screen 71-12 displays buttons (right button 51, left button 52, and the input operation of the enter button 53). The screen 71-12 informs that, following the teaching (background teaching) shown on the screen 71-11, object (measurement object) teaching will be executed if the user presses the decision button 53. FIG. Focusing on the illustrations on the left side of each of the screens 71-1, 71-11, and 71-12, the screens 71-11 and 71-12 are compared to each other. While using it as a base, the background and objects are selectively displayed in a light color. By displaying in this manner, the screens 71-11 and 71-12 inherit the upper setting items (the setting items indicated by the screen 71-1), and further, which target is to be focused on for teaching from now on. You can let the user (intuitively) know what you are going to do.
　ユーザは、閾値ＴＨの設定に必要とされる距離Ｌ１，Ｌ２を測定するためのボタン類（右ボタン５１、左ボタン５２、及び決定ボタン５３）の入力操作の手順を予め記憶しなくても、画面７１－１１，７１－１２を参照しながら、ボタン類（右ボタン５１、左ボタン５２、及び決定ボタン５３）を適切に入力操作し、距離Ｌ１，Ｌ２を測定することができる。 The user does not have to memorize in advance the procedure of input operation of the buttons (the right button 51, the left button 52, and the enter button 53) for measuring the distances L1 and L2 required for setting the threshold TH. While referring to the screens 71-11 and 71-12, the buttons (the right button 51, the left button 52, and the enter button 53) can be appropriately operated to measure the distances L1 and L2.
　なお、画面７１－１１，７１－１２において、背景や検出物体を強調したり、決定ボタン５３を押すことを強調したりするようなアニメーションを追加することにより、ユーザは、測定すべき距離Ｌ１，Ｌ２2と押すべきボタンの種類を視覚的により理解しやすくなる。 By adding an animation such as emphasizing the background or the detected object or emphasizing pressing the decision button 53 on the screens 71-11 and 71-12, the user can easily see the distance L1, It becomes easier to visually understand L22 and the type of button to be pressed.
　なお、上述の４種類のティーチングの設定項目の中から、２点ティーチング以外の何れかのティーチング（背景ティーチング、ワークティーチング、又は背景基準ティーチング）が選択された場合にも、選択されたティーチングを実行するためのボタン類（右ボタン５１、左ボタン５２、及び決定ボタン５３）の入力操作を案内する画面が表示部６０に表示される。例えば、背景ティーチングを例に挙げると、画面７１－２が選択されると、上述と同様に背景ティーチングを実行するためのボタン類の入力を案内する画面が表示部６０に表示される。ユーザは、画面の案内に従ったボタン操作をすると、光電センサ１０は、背景９０までの距離Ｌ３を測定し、適切な閾値ＴＨが自動で設定される。 If any of the above four teaching setting items other than the two-point teaching (background teaching, work teaching, or background reference teaching) is selected, the selected teaching is executed. A screen is displayed on the display unit 60 to guide the input operation of the buttons (the right button 51, the left button 52, and the enter button 53). For example, taking background teaching as an example, when the screen 71-2 is selected, a screen is displayed on the display unit 60 for guiding input of buttons for executing background teaching in the same manner as described above. When the user operates the button according to the guidance on the screen, the photoelectric sensor 10 measures the distance L3 to the background 90, and an appropriate threshold TH is automatically set.
　「閾値設定」の設定項目を示す画面７２がホーム画面７０から選択されると、図１２に示すように、ユーザは、ボタン類（右ボタン５１、左ボタン５２、及び決定ボタン５３）の入力操作を通じて閾値を設定することができる。例えば、画面７２－１は、「１」チャンネルにカーソルが合わされている状態を示している。ユーザは、「１」チャンネルの閾値の設定変更を希望する場合、画面７２－１が表示部６０に表示されている状態でユーザが決定ボタン５３を押下すると、表示部６０に表示される画面は、画面７２－１から画面７２－２に遷移する。この状態でユーザが右ボタン５１又は左ボタン５２を押下すると、「１」チャンネルの閾値は増減する。「１」チャンネルの閾値が「２７００」になったときに、決定ボタン５３が入力されると、画面７２－３に示すように、「１」チャンネルの閾値は、「２７００」に変更される。 When the screen 72 showing the setting item "threshold setting" is selected from the home screen 70, as shown in FIG. Thresholds can be set through For example, screen 72-1 shows a state in which the cursor is placed on the "1" channel. When the user desires to change the setting of the threshold value for the "1" channel, when the user presses the OK button 53 while the screen 72-1 is displayed on the display unit 60, the screen displayed on the display unit 60 is , the screen 72-1 transitions to the screen 72-2. When the user presses the right button 51 or the left button 52 in this state, the threshold for the "1" channel increases or decreases. When the determination button 53 is pressed when the threshold for channel "1" is "2700", the threshold for channel "1" is changed to "2700" as shown in screen 72-3.
　一方、ユーザは、「２」チャンネルの閾値の設定変更を希望する場合、画面７２－１が表示部６０に表示されている状態でユーザが右ボタン５１又は左ボタン５２を押下すると、表示部６０に表示される画面は、画面７２－１から画面７２－４に遷移する。この状態でユーザが決定ボタン５３を押下すると、表示部６０に表示される画面は、画面７２－４から画面７２－５に遷移する。この状態でユーザが右ボタン５１又は左ボタン５２を押下すると、「２」チャンネルの閾値は増減する。「２」チャンネルの閾値が「３７００」になったときに、決定ボタン５３が入力されると、画面７２－６に示すように、「２」チャンネルの閾値は、「３７００」に変更される。なお、「ＥＸＩＴ」が選択されると、閾値設定が完了し、ホーム画面７０へ遷移する。 On the other hand, if the user desires to change the setting of the threshold value for channel "2", the user presses the right button 51 or the left button 52 while the screen 72-1 is being displayed on the display unit 60. The screen displayed in , transitions from the screen 72-1 to the screen 72-4. When the user presses the enter button 53 in this state, the screen displayed on the display unit 60 changes from the screen 72-4 to the screen 72-5. When the user presses the right button 51 or the left button 52 in this state, the threshold of the "2" channel is increased or decreased. When the determination button 53 is pressed when the threshold for the "2" channel is "3700", the threshold for the "2" channel is changed to "3700" as shown on the screen 72-6. Note that when "EXIT" is selected, threshold setting is completed, and the home screen 70 is displayed.
　「閾値設定」の設定項目を示す画面７２がホーム画面７０から選択された場合には、図１２に示す画面７２－１～７２－６に替えて、又はこれに加えて、図１３及び図１４に示す画面７２－７～７２－１８を通じて、ユーザが閾値を手動で設定できるようにしてもよい。画面７２－７では、シングルポイントモードを示す「Ｓｉｎｇｌｅ」の文字が強調表示されており、現在設定されているモードがシングルポイントモード（Ｓｉｎｇｌｅ）であることが示されている。また、画面７２－７では、現在設定されている閾値が「２５００」であることが示されている。この状態で、ユーザが決定ボタン５３を押下すると、表示部６０に表示される画面は、画面７２－７から画面７２－８に遷移する。 13 and 14 instead of or in addition to the screens 72-1 to 72-6 shown in FIG. The threshold may be manually set by the user through screens 72-7 through 72-18 shown in FIG. On the screen 72-7, the characters "Single" indicating the single point mode are highlighted, indicating that the currently set mode is the single point mode (Single). The screen 72-7 also shows that the currently set threshold value is "2500". In this state, when the user presses the decision button 53, the screen displayed on the display unit 60 changes from the screen 72-7 to the screen 72-8.
　画面７２－８が表示されている状態で、ユーザが右ボタン５１又は左ボタン５２を押下すると、表示部６０に表示される画面は、画面７２－８から画面７２－９，７２－１０に遷移する。画面７２－９が表示部６０に表示されている状態でユーザが決定ボタン５３を押下すると、現在設定されているモードをウインドウＢＧＳモード（ＷｉｎｄｏｗＢＧＳ）に切り替えることができる。画面７２－１０が表示部６０に表示されている状態でユーザが決定ボタン５３を押下すると、現在設定されているモードをウインドウＦＧＳモード（ＷｉｎｄｏｗＦＧＳ）に切り替えることができる。 When the user presses the right button 51 or the left button 52 while the screen 72-8 is displayed, the screen displayed on the display unit 60 changes from the screen 72-8 to screens 72-9 and 72-10. do. When the user presses the decision button 53 while the screen 72-9 is displayed on the display unit 60, the currently set mode can be switched to the window BGS mode (WindowBGS). When the user presses the determination button 53 while the screen 72-10 is displayed on the display unit 60, the currently set mode can be switched to the window FGS mode (WindowFGS).
　現在設定されているモードがウインドウＢＧＳモード（ＷｉｎｄｏｗＢＧＳ）に切り替わると、表示部６０に表示される画面は、画面７２－９から画面７２－１１に遷移する。画面７２－１１が表示されている状態でユーザが右ボタン５１又は左ボタン５２を押下すると、現在選択されているチャネルを「１」チャネル」又は「２」チャネルに切り替えることができる。「１」チャネルが選択されている状態でユーザが決定ボタン５３を押下すると、表示部６０に表示される画面は、画面７２－１２から画面７２－１３に遷移する。この状態でユーザが右ボタン５１又は左ボタン５２を押下すると、「１」チャンネルの閾値は「２５００」から増減する。「１」チャンネルの閾値が「２７００」になったときに、決定ボタン５３が入力されると、画面７２－１４に示すように、「１」チャンネルの閾値は、「２７００」に変更される。 When the currently set mode is switched to the window BGS mode (WindowBGS), the screen displayed on the display unit 60 changes from screen 72-9 to screen 72-11. When the user presses the right button 51 or the left button 52 while the screen 72-11 is displayed, the currently selected channel can be switched to the "1" channel or the "2" channel. When the user presses the enter button 53 while the "1" channel is selected, the screen displayed on the display unit 60 changes from the screen 72-12 to the screen 72-13. When the user presses the right button 51 or the left button 52 in this state, the threshold for the "1" channel increases or decreases from "2500". When the "1" channel threshold becomes "2700" and the enter button 53 is pressed, the "1" channel threshold is changed to "2700" as shown in the screen 72-14.
　現在設定されているモードがウインドウＦＧＳモード（ＷｉｎｄｏｗＦＧＳ）に切り替わると、表示部６０に表示される画面は、画面７２－１０から画面７２－１５に遷移する。画面７２－１５が表示されている状態でユーザが右ボタン５１又は左ボタン５２を押下すると、現在選択されているチャネルを「１」チャネル」又は「２」チャネルに切り替えることができる。「２」チャネルが選択されている状態でユーザが決定ボタン５３を押下すると、表示部６０に表示される画面は、画面７２－１５から画面７２－１６に遷移する。この状態でユーザが右ボタン５１又は左ボタン５２を押下すると、「２」チャンネルの閾値は「４０００」から増減する。「２」チャンネルの閾値が「３７００」になったときに、決定ボタン５３が入力されると、画面７２－１７に示すように、「２」チャンネルの閾値は、「３７００」に変更される。 When the currently set mode is switched to the window FGS mode (WindowFGS), the screen displayed on the display unit 60 changes from screen 72-10 to screen 72-15. When the user presses the right button 51 or the left button 52 while the screen 72-15 is displayed, the currently selected channel can be switched to the "1" channel or the "2" channel. When the user presses the decision button 53 while the "2" channel is selected, the screen displayed on the display unit 60 changes from the screen 72-15 to the screen 72-16. When the user presses the right button 51 or the left button 52 in this state, the threshold for the "2" channel increases or decreases from "4000". When the determination button 53 is pressed when the threshold for channel "2" is "3700", the threshold for channel "2" is changed to "3700" as shown in screen 72-17.
　なお、手動で閾値や出力モード（例えば、ウインドウＢＧＳモードやウインドウＦＧＳモードなど）の設定を行う際に、今どの出力モードなのか、どの閾値を変更しているのかを視覚的に識別可能とするアイコンを表示部６０に表示してもよい。 In addition, when manually setting the threshold value and output mode (for example, window BGS mode, window FGS mode, etc.), it is possible to visually identify which output mode is currently being used and which threshold value is being changed. An icon may be displayed on the display unit 60 .
　「表示画面の切り替え」の設定項目を示す画面７３がホーム画面７０から選択されると、図１５に示すように、ユーザは、表示部６０に表示される画面の表示モードを、ボタン類（右ボタン５１、左ボタン５２、及び決定ボタン５３）の入力操作を通じて、変更することができる。ユーザは、右ボタン５１又は左ボタン５２を操作入力することにより、４種類の表示モードのそれぞれに対応する画面７３－１，７３－２，７３－３，７３－４を右方向又は左方向に巡回表示し、決定ボタン５３を操作入力することにより、何れか一つの表示モードを選択することができる。 When the screen 73 showing the setting item "switch display screen" is selected from the home screen 70, as shown in FIG. It can be changed through the input operation of the button 51, the left button 52, and the decision button 53). By operating the right button 51 or the left button 52, the user can move the screens 73-1, 73-2, 73-3, 73-4 corresponding to the four display modes to the right or left. Any one of the display modes can be selected by cyclically displaying and operating the enter button 53 .
　画面７３－１において、数字「３５００」は、測定距離を示し、数字「２５００」は、閾値を示し、数字「１」及び「２」は、チャネルを示し、数字「９０」は、受光余裕度を示し、Standardは、モード名を示す。画面７３－２において、数字「３５００」は、測定距離を示し、数字「１」及び「２」は、チャネルを示し、Simpleは、モード名を示す。画面７３－３において、数字「３５００」は、測定距離を示し、数字「１」及び「２」は、チャネルを示し、Ｐ３７００は、測定距離のピーク値を示し、Ｂ３３００は、測定距離のボトム値を示し、Peak Bottomは、モード名を示す。画面７３－４において、数字「１」及び「２」は、チャネルを示し、ＯＮ／ＯＦＦは、モード名を示す。 In the screen 73-1, the number "3500" indicates the measurement distance, the number "2500" indicates the threshold value, the numbers "1" and "2" indicate the channels, and the number "90" indicates the light receiving margin. and Standard indicates the mode name. In the screen 73-2, the number "3500" indicates the measured distance, the numbers "1" and "2" indicate channels, and Simple indicates the mode name. In the screen 73-3, the number "3500" indicates the measured distance, the numbers "1" and "2" indicate channels, P3700 indicates the peak value of the measured distance, and B3300 indicates the bottom value of the measured distance. , and Peak Bottom indicates the mode name. In the screen 73-4, numbers "1" and "2" indicate channels, and ON/OFF indicates mode names.
　「詳細設定」の設定項目を示す画面７４がホーム画面７０から選択されると、図１６に示すように、ユーザは、詳細設定の各項目を、ボタン類（右ボタン５１、左ボタン５２、及び決定ボタン５３）の入力操作を通じて設定することができる。例えば、画面７４－１，７４－２，７４－３は、光電センサ１０の応答時間を設定するときに表示部６０に表示される画面の例である。応答時間とは、光電センサ１０に光が入光又は遮光してから、光電センサ１０が応答し、出力が反転するまでの時間を意味する。 When the screen 74 showing setting items of "detailed settings" is selected from the home screen 70, the user can select each item of the detailed settings by pressing buttons (the right button 51, the left button 52, and the It can be set through the input operation of the decision button 53). For example, screens 74-1, 74-2, and 74-3 are examples of screens displayed on the display unit 60 when setting the response time of the photoelectric sensor 10. FIG. The response time means the time from when light enters or is blocked by the photoelectric sensor 10 to when the photoelectric sensor 10 responds and the output is inverted.
　また、例えば、画面７４－４，７４－５，７４－６は、光電センサ１０の出力モードを設定するときに表示部６０に表示される画面の例である。光電センサ１０の中には、複数の出力が可能なものがあり、そのような光電センサ１０については、各出力に対して個別に出力項目を設定することができる。シングルポイントモード（Ｓｉｎｇｌｅ）及びウインドウＢＧＳモード（ＷｉｎｄｏｗＢＧＳ）は、出力１（Ｏｕｔ１）に設定できる出力モードである。なお、図１６には図示していないが、ウインドウＦＧＳモード（ＷｉｎｄｏｗＦＧＳ）の設定も可能である。シングルポイントモード、ウインドウＢＧＳモード、及びウインドウＦＧＳモードのそれぞれは、公知であるため、それらの詳細な説明を省略する。 For example, screens 74-4, 74-5, and 74-6 are examples of screens displayed on the display unit 60 when the output mode of the photoelectric sensor 10 is set. Some photoelectric sensors 10 are capable of multiple outputs, and for such photoelectric sensors 10, output items can be individually set for each output. Single point mode (Single) and window BGS mode (WindowBGS) are output modes that can be set to output 1 (Out1). Although not shown in FIG. 16, it is also possible to set a window FGS mode (WindowFGS). Each of the single point mode, the window BGS mode, and the window FGS mode is well-known, so detailed description thereof will be omitted.
　図１７は、光電センサ１０の設定方法の流れを示すフローチャートである。 FIG. 17 is a flow chart showing the flow of the setting method for the photoelectric sensor 10. FIG.
　光電センサ１０は、予め定められたボタン操作（例えば、決定ボタン５３の３秒間の長押し）が入力されたか否かを判定する（ステップ１５０１）。 The photoelectric sensor 10 determines whether or not a predetermined button operation (for example, a long press of the enter button 53 for 3 seconds) has been input (step 1501).
　予め定められたボタン操作（例えば、決定ボタン５３の３秒間の長押し）が入力されると（ステップ１５０１；ＹＥＳ）、表示部６０は、ホーム画面７０を表示する（ステップ１５０２）。 When a predetermined button operation (for example, long press of the decision button 53 for 3 seconds) is input (step 1501; YES), the display unit 60 displays the home screen 70 (step 1502).
　ユーザは、右ボタン５１又は左ボタン５２を操作入力することにより、ホーム画面７０に表示される各設定項目（例えば、「ティーチング」、「閾値設定」、「表示画面の切り替え」、及び「詳細設定」）を右方向又は左方向に巡回表示し、決定ボタン５３を操作入力することにより、何れか一つの設定項目を選択することができる。 By operating the right button 51 or the left button 52, the user operates each setting item displayed on the home screen 70 (for example, "teaching", "threshold setting", "switching display screen", and "detailed setting"). ”) are cyclically displayed in the right or left direction, and any one of the setting items can be selected by operating and inputting the enter button 53 .
　ホーム画面７０から「ティーチング」の設定項目が選択されると（ステップ１５０３）、表示部６０は、ティーチングを実行するためのボタン類（右ボタン５１、左ボタン５２、及び決定ボタン５３）の入力操作を案内する画面７１－１１，７１－１２を表示する（ステップ１５０４）。 When the setting item "teaching" is selected from the home screen 70 (step 1503), the display unit 60 performs input operation of buttons (right button 51, left button 52, and enter button 53) for executing teaching. screens 71-11 and 71-12 are displayed (step 1504).
　ホーム画面７０から「閾値設定」の設定項目が選択されると（ステップ１５０５）、表示部６０は、閾値を設定するための画面７２－１，７２－２，７２－３，７２－４，７２－５，７２－６を表示する（ステップ１５０６）。 When the setting item "threshold setting" is selected from the home screen 70 (step 1505), the display unit 60 displays screens 72-1, 72-2, 72-3, 72-4, and 72 for setting thresholds. -5, 72-6 are displayed (step 1506).
　ホーム画面７０から「表示画面の切り替え」の設定項目が選択されると（ステップ１５０７）、表示部６０は、表示部６０に表示される画面の表示モードを切り替えるための画面７３－１，７３－２，７３－３，７３－４を表示する（ステップ１５０８）。 When the setting item “switch display screen” is selected from the home screen 70 (step 1507), the display unit 60 displays screens 73-1 and 73- for switching the display mode of the screen displayed on the display unit 60. 2, 73-3, and 73-4 are displayed (step 1508).
　ホーム画面７０から「詳細設定」の設定項目が選択されると（ステップ１５０９）、表示部６０は、詳細設定を入力するための画面７４－１，７４－２，７４－３，７４－４，７４－５，７４－６を表示する（ステップ１５１０）。 When the setting item "detailed settings" is selected from the home screen 70 (step 1509), the display unit 60 displays screens 74-1, 74-2, 74-3, 74-4, 74-4, 74-4, 74-2, 74-3, 74-4, 74-2, 74-2, 74-3, 74-4, and 74-4 for inputting detailed settings. 74-5 and 74-6 are displayed (step 1510).
　このように、光電センサ１０の各種の設定を行うには、ホーム画面７０を経由する必要があるため、設定項目の選択は、ホーム画面７０を表示部６０に表示するための予め定められた操作の後に、行われる。なお、入力操作の案内や光電センサ１０の複数の設定項目を光電センサ１０の表示部６０に表示するときに、視覚的に識別可能とするアイコンやアニメーションを用いてもよい。 As described above, in order to perform various settings of the photoelectric sensor 10 , it is necessary to go through the home screen 70 . Therefore, selection of setting items is performed by performing a predetermined operation for displaying the home screen 70 on the display unit 60 . is done after It should be noted that when guidance for input operations and a plurality of setting items of the photoelectric sensor 10 are displayed on the display unit 60 of the photoelectric sensor 10, visually identifiable icons or animations may be used.
　図１８は光電センサ１０の構成を示すブロック図である。
　光電センサ１０の一例として、光による三角測距によって得られる測定対象物（例えば、測定対象物１００）までの距離を測定し、測定対象物までの距離と基準距離との比較結果である二値信号を出力する距離設定型光電センサを例示する。 FIG. 18 is a block diagram showing the configuration of the photoelectric sensor 10. As shown in FIG.
As an example of the photoelectric sensor 10, the distance to the measurement object (for example, the measurement object 100) obtained by triangulation using light is measured, and the binary value that is the result of comparison between the distance to the measurement object and the reference distance is obtained. A distance-setting type photoelectric sensor that outputs a signal is illustrated.
　光電センサ１０は、投光部２０、受光部３０、主制御部４０、ボタン類５０、及び表示部６０を備えている。投光部２０は、発光素子２１と、投光レンズ２２とを備えている。受光部３０は、受光素子３１と、受光レンズ３２とを備えている。発光素子２１から投光された光が投光レンズ２２を通って測定対象物１００に投光され、測定対象物１００で反射した光が受光レンズ３２を通って受光素子３１に入射する。受光素子３１として、例えば、一定範囲の受光面を有し、入射光の受光面におけるスポット位置又は光量分布の重心位置を検出可能なＰＳＤ（位置検出半導体素子）、ＣＣＤ（固体撮像素子）等のセンサ素子が使用される。受光素子３１の受光面における受光スポットの位置又は光量分布の重心位置を検出することによって、測定対象物１００での距離又はその変位を測定することができる。 The photoelectric sensor 10 includes a light projecting section 20 , a light receiving section 30 , a main control section 40 , buttons 50 and a display section 60 . The light projecting section 20 includes a light emitting element 21 and a light projecting lens 22 . The light receiving section 30 includes a light receiving element 31 and a light receiving lens 32 . Light projected from the light emitting element 21 passes through the light projecting lens 22 and is projected onto the measurement object 100 , and light reflected by the measurement object 100 passes through the light receiving lens 32 and enters the light receiving element 31 . As the light receiving element 31, for example, a PSD (position detection semiconductor device), a CCD (solid-state imaging device), or the like, which has a light receiving surface of a certain range and can detect the spot position on the light receiving surface of the incident light or the barycentric position of the light amount distribution. A sensor element is used. By detecting the position of the light-receiving spot on the light-receiving surface of the light-receiving element 31 or the barycentric position of the light amount distribution, the distance or displacement of the measurement object 100 can be measured.
　主制御部４０は、プロセッサ及びメモリなどから構成されるマイクロコンピュータである。主制御部４０は、ユーザによるボタン類５０の入力操作に応答して、各部（投光部２０、受光部３０、及び表示部６０）を制御する。例えば、主制御部４０は、ユーザによるボタン類５０の入力操作に応答して、光電センサ１０の各種の動作（例えば、測定対象物１００の距離測定、表示部６０に表示される画面の更新、及び光電センサ１０の設定変更など）を制御する。ボタン類５０は、右ボタン５１、左ボタン５２、及び決定ボタン５３を総称するものである。主制御部４０は、図１５に示す処理手順に従って、光電センサ１０の各種の設定を行う。 The main control unit 40 is a microcomputer composed of a processor, memory, and the like. The main control unit 40 controls each unit (the light projecting unit 20, the light receiving unit 30, and the display unit 60) in response to the input operation of the buttons 50 by the user. For example, the main control unit 40 responds to the input operation of the buttons 50 by the user to perform various operations of the photoelectric sensor 10 (for example, distance measurement of the measurement object 100, update of the screen displayed on the display unit 60, and setting change of the photoelectric sensor 10). Buttons 50 collectively refer to right button 51 , left button 52 , and enter button 53 . The main control unit 40 performs various settings of the photoelectric sensor 10 according to the processing procedure shown in FIG.
　なお、光電センサ１０は、上述の距離設定型光電センサに限られるものではなく、例えば、測定対象物１００からの反射光の受光量を閾値と比較して測定対象物１００を検出する受光量方式の光電センサでもよい。また、光電センサ１０は、ＴＯＦ（Time Of Flight）法を利用して測定対象物１００での距離を測定する光電センサでもよい。 Note that the photoelectric sensor 10 is not limited to the distance setting type photoelectric sensor described above. may be a photoelectric sensor. Alternatively, the photoelectric sensor 10 may be a photoelectric sensor that measures the distance to the measurement object 100 using a TOF (Time Of Flight) method.
　本発明の実施形態に関わる光電センサ１０によれば、ユーザは、ティーチングを実行するためのボタン類５０の操作手順を予め記憶しなくても、光電センサ１０のティーチングを実行するためのボタン類５０の入力操作を案内する画面を参照しながら、光電センサ１０のティーチングを適切に実行することができる。また、ユーザは、ホーム画面７０を表示するためのボタン類５０の操作手順を最低限記憶しておくことにより、ホーム画面７０から任意の設定項目を選択し、選択された設定項目を適宜設定することができる。これにより、ユーザは、各種の設定機能を起動するためのボタン類５０の操作手順を個別に記憶しなくて済む利点を有する。 According to the photoelectric sensor 10 according to the embodiment of the present invention, the user can use the buttons 50 for executing teaching of the photoelectric sensor 10 without memorizing in advance the operation procedure of the buttons 50 for executing teaching. Teaching of the photoelectric sensor 10 can be performed appropriately while referring to the screen that guides the input operation of . In addition, the user can select any setting item from the home screen 70 by memorizing at least the operation procedure of the buttons 50 for displaying the home screen 70, and appropriately set the selected setting item. be able to. This has the advantage that the user does not need to individually memorize the operation procedures of the buttons 50 for activating various setting functions.
　上述の実施形態の一部又は全部は、以下の付記のように記載され得るが、以下には限定されない。
（付記１）
　光電センサ１０であって、
　ボタン５１，５２，５３と、
　表示部６０と、を備え、
　表示部６０は、予め定められた操作に従って、ボタン５１，５２，５３が入力されると、光電センサ１０の複数の設定項目を表示し、予め定められた操作の後のボタン５１，５２，５３の入力により、複数の設定項目の中から光電センサ１０のティーチングが選択されると、光電センサ１０のティーチングを設定するためのボタン５１，５２，５３の入力操作を案内する画面７１－１１，７１－１２を表示する、光電センサ１０。
（付記２）
　付記１に記載の光電センサ１０であって、
　表示部６０は、予め定められた操作の後のボタン５１，５２，５３の入力により、複数の設定項目の中から光電センサ１０のティーチング以外の設定項目が選択されると、選択された設定項目を設定するための画面を表示する、光電センサ１０。
（付記３）
　ボタン５１，５２，５３と表示部６０とを備える光電センサ１０の画面表示方法であって、
　予め定められた操作に従って、ボタン５１，５２，５３が入力されたときに（ステップ１５０１）、表示部６０は、光電センサ１０の複数の設定項目を表示し（ステップ１５０２）、
　予め定められた操作の後のボタン５１，５２，５３の入力により、複数の設定項目の中から光電センサ１０のティーチングが選択されたときに（ステップ１５０３）、表示部６０は、光電センサ１０のティーチングを設定するためのボタン５１，５２，５３の入力操作を案内する画面を表示し（ステップ１５０４）、
　予め定められた操作の後のボタン５１，５２，５３の入力により、複数の設定項目の中から光電センサ１０のティーチング以外の設定項目が選択されたときに（ステップ１５０５，１５０７，１５０９）、表示部６０は、選択された設定項目を設定するための画面を表示する（ステップ１５０６，１５０８，１５１０）、画面表示方法。 Some or all of the above-described embodiments may be described as in the following appendices, but are not limited to the following.
(Appendix 1)
The photoelectric sensor 10,
buttons 51, 52, 53;
a display unit 60;
The display unit 60 displays a plurality of setting items of the photoelectric sensor 10 when the buttons 51, 52 and 53 are input according to a predetermined operation, and the buttons 51, 52 and 53 after the predetermined operation are displayed. When the teaching of the photoelectric sensor 10 is selected from a plurality of setting items by inputting , screens 71-11 and 71 for guiding the input operation of the buttons 51, 52 and 53 for setting the teaching of the photoelectric sensor 10 are displayed. A photoelectric sensor 10 displaying -12.
(Appendix 2)
The photoelectric sensor 10 according to Appendix 1,
When a setting item other than teaching of the photoelectric sensor 10 is selected from a plurality of setting items by inputting buttons 51, 52, and 53 after a predetermined operation, the display unit 60 displays the selected setting item. The photoelectric sensor 10 displays a screen for setting the .
(Appendix 3)
A screen display method for a photoelectric sensor 10 including buttons 51, 52, 53 and a display unit 60,
When buttons 51, 52, and 53 are input according to a predetermined operation (step 1501), display unit 60 displays a plurality of setting items of photoelectric sensor 10 (step 1502),
When teaching of the photoelectric sensor 10 is selected from among a plurality of setting items by inputting the buttons 51, 52, 53 after a predetermined operation (step 1503), the display unit 60 displays the Display a screen for guiding the input operation of buttons 51, 52, 53 for setting teaching (step 1504),
When a setting item other than the teaching of the photoelectric sensor 10 is selected from a plurality of setting items by inputting the buttons 51, 52, 53 after a predetermined operation ( steps 1505, 1507, 1509), the A screen display method in which the unit 60 displays a screen for setting the selected setting item ( steps 1506, 1508, 1510).
１０…光電センサ　２０…投光部　３０…受光部　４０…主制御部　５０…ボタン類　６０…表示部　７０…ホーム画面 10... Photoelectric sensor 20... Light emitting part 30... Light receiving part 40... Main control part 50... Buttons 60... Display part 70... Home screen

Claims (5)

  1. 　光電センサであって、
    　ボタンと、
    　表示部と、を備え、
    　前記表示部は、前記ボタンに対する第１の操作に応答して、前記光電センサの複数の設定項目を表示し、前記ボタンに対する第２の操作により、前記複数の設定項目の中から前記光電センサのティーチングが選択されると、前記光電センサのティーチングを実行するための前記ボタンの入力操作を案内する画面を表示する、光電センサ。     A photoelectric sensor,
    a button;
    a display unit;
    The display unit displays a plurality of setting items of the photoelectric sensor in response to a first operation of the button, and selects the photoelectric sensor from among the plurality of setting items by a second operation of the button. A photoelectric sensor that, when teaching is selected, displays a screen that guides an input operation of the button for executing teaching of the photoelectric sensor.
  2. 　請求項１に記載の光電センサであって、
    　前記表示部は、前記第２の操作により、前記複数の設定項目の中から前記光電センサのティーチング以外の設定項目が選択されると、選択された設定項目を設定するための画面を表示する、光電センサ。     The photoelectric sensor according to claim 1,
    When a setting item other than teaching of the photoelectric sensor is selected from the plurality of setting items by the second operation, the display unit displays a screen for setting the selected setting item. Photoelectric sensor.
  3. 　請求項１又は２に記載の光電センサであって、
    　前記第１の操作及び前記第２の操作は、異なる操作である、光電センサ。     The photoelectric sensor according to claim 1 or 2,
    The photoelectric sensor, wherein the first operation and the second operation are different operations.
  4. 　ボタンと表示部とを備える光電センサの画面表示方法であって、
    　前記表示部は、前記ボタンに対する第１の操作に応答して、前記光電センサの複数の設定項目を表示し、
    　前記ボタンに対する第２の操作により、前記複数の設定項目の中から前記光電センサのティーチングが選択されると、前記表示部は、前記光電センサのティーチングを実行するための前記ボタンの入力操作を案内する画面を表示する、画面表示方法。     A screen display method for a photoelectric sensor comprising a button and a display unit,
    the display unit displays a plurality of setting items of the photoelectric sensor in response to a first operation on the button;
    When teaching of the photoelectric sensor is selected from among the plurality of setting items by a second operation on the button, the display section guides an input operation of the button for executing teaching of the photoelectric sensor. The screen display method that displays the screen to be displayed.
  5. 　請求項４に記載の光電センサの画面表示方法であって、
    　前記第２の操作により、前記複数の設定項目の中から前記光電センサのティーチング以外の設定項目が選択されると、前記表示部は、選択された設定項目を設定するための画面を表示する、画面表示方法。     A screen display method for a photoelectric sensor according to claim 4,
    When a setting item other than teaching of the photoelectric sensor is selected from the plurality of setting items by the second operation, the display unit displays a screen for setting the selected setting item. screen display method.
PCT/JP2021/046798 2021-03-12 2021-12-17 Photoelectric sensor and screen display method therefor WO2022190511A1 (en)

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Cited By (1)

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CN116243328A (en) * 2023-01-20 2023-06-09 松下神视电子（苏州）有限公司 Sensor for detecting a position of a body

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Publication number Priority date Publication date Assignee Title
JP2013214516A (en) * 2002-10-31 2013-10-17 Omron Corp Fiber type photoelectric sensor
JP2015082776A (en) * 2013-10-23 2015-04-27 株式会社キーエンス Photoelectronic sensor

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Publication number Priority date Publication date Assignee Title
JP2013214516A (en) * 2002-10-31 2013-10-17 Omron Corp Fiber type photoelectric sensor
JP2015082776A (en) * 2013-10-23 2015-04-27 株式会社キーエンス Photoelectronic sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116243328A (en) * 2023-01-20 2023-06-09 松下神视电子（苏州）有限公司 Sensor for detecting a position of a body

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