JP2007064782A - Detection sensor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a constitution capable of offering an index of long press period to an operator. <P>SOLUTION: The detection sensor 10 is provided with a light receiving means 24 outputting a detection signal of a level according to the detection status of an object to be detected and can detect the object to be detected based on the level of the detection signal and a specific detection condition. It also has an operation means 11 capable of operation by an operator and is constituted to measure the continuous operation time when the operation means 11 is continuously operated, to recognize the specific operation when continuous operation over the first reference time is done, and to process based on the recognized specific operation. Furthermore, an indication means 16 is provided and when the continuous operation time in the operation means 11 is over the second reference time shorter than the first reference time, the information according to the continuous operation time is indicated on a display means 11 in the constitution. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a detection sensor.

2. Description of the Related Art Conventionally, a detection sensor has been provided in which setting changes of a plurality of conditions such as timer operation, response time, and hysteresis can be performed. In such a detection sensor capable of changing the setting, there is a possibility that the setting condition may be changed by an operator touching the operation key by mistake during the detection operation. On the other hand, as a configuration that can solve such a problem, a technique such as Patent Document 1 is provided. In Patent Document 1, the description about the key lock is made in the 42nd paragraph. By enabling the key lock in this way, an erroneous setting change by the operator can be prevented.
JP 2000-214908 A

  In the prior art as described in Patent Document 1, when an operation key is pressed and held for a certain time or longer, subsequent operation key operations are invalidated to prevent setting changes due to erroneous operations.

  However, it is difficult for the operator to intuitively grasp the operation time until the invalidation (long press time) simply by adopting a configuration that prevents erroneous operation simply by long pressing, and it is understood how long the operation should be continued. Since it was difficult, there was a problem in terms of operability. In addition, when the operator erroneously operates a button that requires a long press, the configuration in which no information is given to the operator makes it difficult for the operator to recognize the error and there is a problem in terms of convenience.

  The present invention has been completed based on the above-described circumstances, and an object thereof is to provide a configuration capable of giving an index of a long press time to an operator.

As means for achieving the above-mentioned object, the invention of claim 1 comprises physical quantity detection means for outputting a detection signal of a level corresponding to the detection state of the detected object,
Detected object detection means for detecting the detected object based on a level of the detection signal and a predetermined detection condition;
Operation means that can be operated by an operator;
An operation recognizing unit that measures a continuous operation time when the operation unit is operated continuously, and recognizes that a predetermined operation is performed when the continuous operation time is equal to or longer than a first reference time;
Processing execution means for performing processing based on the predetermined operation recognized by the operation recognition means;
A detection sensor comprising:
Display means;
Display control means for performing display control of the display means,
The display control means includes
When the continuous operation time in the operation means is equal to or longer than a second reference time shorter than the first reference time, information corresponding to the continuous operation time is displayed on the display means.

The invention of claim 2 is the detection sensor of claim 1,
The information according to the continuous operation time is difference information according to a difference between the continuous operation time and the first reference time.

The invention of claim 3 is the detection sensor according to claim 2,
The display control means includes
A bar graph having a level corresponding to a difference between the continuous operation time in the operation means and the first reference time is displayed on the display means.

The invention of claim 4 is the detection sensor according to claim 2,
The display means is constituted by a digital display unit,
The display control means includes
When the detection object is detected by the detection object detection means, the level of the detection signal is displayed on the digital display unit,
When the continuous operation time at the operation means becomes equal to or longer than the second reference time, a level corresponding to a difference between the continuous operation time and the first reference time is displayed on the digital display unit. It is characterized by.

  According to a fifth aspect of the present invention, in the detection sensor according to the fourth aspect, a display mode for displaying the level of the detection signal based on an operation of the operation means, and a difference between the continuous operation time and the first reference time. And a mode switching control means for automatically switching the display mode for displaying the level according to the above.

The invention of claim 6 is the detection sensor according to claim 3,
The display means is composed of a plurality of digital display units in a 7-segment format,
The display control means includes
When the detection object is detected by the detection object detection means, the level of the detection signal is displayed on the digital display unit,
When the continuous operation time in the operation means becomes equal to or longer than the second reference time, a level corresponding to the difference between the continuous operation time and the first reference time is used for each segment of the digital display unit. The bar graph is displayed.

The invention of claim 7 is the detection sensor according to any one of claims 1 to 6,
The display control means includes
When the continuous operation time at the operation means is equal to or longer than the first reference time, the display content on the display means is changed from the display content according to the difference between the continuous operation time and the first reference time, The display content is changed according to the predetermined operation recognized by the operation recognition means.

<Invention of Claim 1>
According to the invention of claim 1, since it is possible to give an index of the long press time to the worker, it is easy for the worker to grasp how long the operation should be continued, and the configuration is excellent in operability. . In addition, when the operator erroneously operates a button that requires a long press, information is given to the operator, so that the operator can easily recognize the mistake and is highly convenient.

<Invention of Claim 2>
According to the invention of claim 2, since the difference information corresponding to the difference between the continuous operation time and the first reference time can be provided, the operator can more appropriately grasp how long the press should be continued, The configuration is more excellent in operability.

<Invention of Claim 3>
In the configuration of claim 3, since the bar graph of the level corresponding to the difference between the continuous operation time in the operation means and the first reference time is displayed on the display means, the difference information can be obtained with a simple configuration. It becomes a suitable example which can provide.

<Invention of Claim 4>
According to the invention of claim 4, when the detection object is detected by the detection object detection means, the level of the detection signal is displayed on the digital display unit, and the continuous operation time in the operation means is displayed. When the second reference time is exceeded, the level corresponding to the difference between the continuous operation time and the first reference time is displayed on the digital display, so the digital display is displayed in two types of display. It can be combined. Therefore, since the difference information can be provided without providing a special display device, a high function can be provided at low cost.

<Invention of Claim 5>
According to the fifth aspect of the present invention, mode switching for switching between a display mode for displaying the level of the detection signal and a display mode for displaying a level corresponding to the difference between the continuous operation time and the first reference time based on the operation of the operation means. Since the means is provided, the operator can easily change the mode according to the situation. Therefore, the configuration is more convenient.

<Invention of Claim 6>
In the invention of claim 6, when the detected object is detected by the detected object detecting means, the level of the detection signal is displayed on the 7-segment digital display unit, and the continuous operation by the operating means is performed. When the time becomes equal to or longer than the second reference time, a level corresponding to the difference between the continuous operation time and the first reference time is displayed as a bar graph using the segments of each digital display unit. Therefore, the 7-segment digital display unit can be used for two types of display, and the display contents can be smoothly shifted when the second reference time is reached. Therefore, a high function can be easily realized and the operability is further improved.

<Invention of Claim 7>
In the invention of claim 7, when the continuous operation time in the operation means is equal to or longer than the first reference time, the display content on the display means is changed from the display content corresponding to the difference between the continuous operation time and the first reference time. The display contents are changed according to a predetermined operation performed by the operation recognition means. Therefore, when the first reference time elapses, the display content smoothly transitions to the desired content, and the configuration becomes even easier to use.

<Embodiment 1>
Embodiment 1 of the present invention will be described with reference to the drawings.
1. Overall Configuration FIG. 1 shows a detection sensor according to the first embodiment, and FIG. 2 shows a block diagram of the detection sensor. FIG. 3 shows a sensor system in which a plurality of detection sensors are arranged adjacent to each other. In FIG. 1, a fiber sensor having a plurality of functions is illustrated as the detection sensor 10, and the fiber sensor includes a display unit 16 capable of selectively displaying a plurality of setting items respectively corresponding to each function, and a work The operation means 11 is configured to be input-operable by a person. 2 is a general term for the mode key (first key 12) and the switch (second key 14) shown in FIG.

  As shown in FIG. 2, the detection sensor 10 includes a light projecting element (light projecting means 22) that emits light to a predetermined detection region, and a light receiving means 24 that receives light emitted from the light projecting element. Yes. The light receiving unit 24 corresponds to a physical quantity detection unit, and outputs a detection signal having a level corresponding to the detection state of the detected object. Furthermore, a receiving means 26 for receiving information from other detection sensors and control units, a transmission means 28 for transmitting information to other detection sensors and control units, and a memory 32 for storing various data. Each has. Further, a CPU 20 for performing various controls is provided, and the CPU 20 corresponds to an operation recognition unit, a display control unit, a detected object detection unit, a process execution unit, and a mode switching control unit in the claims.

  Further, the detection object is detected based on the amount of light received by the light receiving means 24. Furthermore, it has the light-receiving element 23 for monitoring which is arrange | positioned in the vicinity of a light projection element and monitors the light projection amount irradiated from a light projection element.

  The display means 16 shown in FIG. 2 is a general term for the 4-digit 7-segment LED display units 16A to 16D shown in FIG. In the present embodiment, control is performed so that a plurality of setting items are switched and displayed on the display unit 16 based on the input operation by the operation unit 11 described above.

  The detection sensor 10 according to the present embodiment has a configuration having a plurality of functions whose settings can be changed. As an example of the plurality of functions, the detection sensor 10 is configured based on the amount of light received by the monitor light receiving element 23. It has a function of driving the light projecting element so that the amount of light emitted is a predetermined amount. As an example of the function setting change, there is a function for setting whether to enable or disable such a driving method. When the setting for invalidating the drive is made, the setting information is stored in the memory 32, and in the subsequent processing, control is performed so that such a drive control method is prohibited. Become.

(basic setting)
Further, in the detection sensor 10, various settings can be made based on the operation recognized by the operation recognition means (that is, the CPU 20). Specifically, these various settings are the basic settings shown in FIG. And detailed setting processing shown in FIG. The basic setting process is started by pressing the first key 12 in the RUN state (that is, the normal detection state), and first switches from the normal detection state to the TEACH state (teaching mode) as shown in FIG. Thereafter, every time the first key 12 is pressed, “ADJ” (adjustment setting) → “L / D ON” (L / D ON setting) → “TIMER” (timer operation setting) → “PRO” (detailed setting) → “MAS” (mask setting) → “RUN” (normal detection state) is switched. The basic setting state is displayed by lamps 18A to 18G. An example of a specific processing flow is a flowchart as shown in FIG. 6. In this embodiment, when a predetermined operation is performed in a state where each setting mode is displayed on the lamps 18 </ b> A to 18 </ b> G. Processing for each mode is possible.

  In the detection sensor 10 according to the present embodiment, detailed setting can be performed in the “PRO” mode of the basic setting process shown in FIG. 3, and when various setting processes are selected in S180, the process proceeds to Y in S180. Executed. The CPU 20 as the control unit performs control so that the setting item is switched and displayed on the display unit 16 in accordance with the operation of the operation unit 11.

  Specifically, in the “PRO mode”, when the second key 14 is tilted once to the + side, the response time is switched, and when the response time is switched, the second key 14 is pressed again in this state. The response time can be set by switching to the screen. To make other settings, turn the second key 14 to the + side from the previous response time switching state, and depending on the number of times, response time switching → timer setting → hysteresis → stability → key lock time setting → response time switching Will be switched sequentially. Then, when the second key 14 is pushed in a desired state, the setting can be performed. If the non-operation state of the first key is continued for a predetermined time or more after the setting has been completed, the state becomes invalid, and then the normal detection is resumed by returning to the RUN state. The detection sensor 10 is configured to detect an object to be detected based on the detection conditions set in this way.

  As described above, the detection sensor 10 has the operation means 11 having one or a plurality of functions whose settings can be changed and which can be operated by an operator. And it is comprised so that the setting of the various functions utilized for a detection may be performed based on operation of this operation means 11, and it may be comprised so that the detection target may be detected based on this function setting.

  The detection sensor 10 according to the present embodiment measures the continuous operation time when the operation unit 11 is continuously operated by the CPU 20, and the operation unit 11 continues for a key lock time (first reference time) or longer. It is configured to recognize the operation on the condition that it has been operated. Then, processing based on the recognized operation is performed.

  Furthermore, when the continuous operation time in the operation means 11 is equal to or longer than a certain time (this certain time corresponds to the second reference time) shorter than the key lock time (this key locking time corresponds to the first reference time). In addition, information corresponding to the continuous operation time is displayed on the display means 16. Specifically, difference information corresponding to the difference between the continuous operation time and the first reference time is displayed as information corresponding to the continuous operation time.

  The display means 16 is composed of a 7-segment digital display, and when the detection object is detected by the light receiving element 24, the level of the detection signal from the light receiving element 24 is digitally displayed. Display (for example, numerical display). On the other hand, when the continuous operation time in the operation means 11 is equal to or longer than a predetermined time (second reference time), a level corresponding to the difference between the continuous operation time and the first reference time is used as difference information. , It is displayed on the digital display. As a level display according to the difference between the continuous operation time and the first reference time, as shown in FIGS. 10 to 12, the level display according to the difference between the continuous operation time at the operation means 11 and the first reference time. It may be a bar graph, or may be numerical information of a level corresponding to the difference between the continuous operation time and the first reference time, as shown in FIGS. Details of the display control will be described later.

  In the present embodiment, the key lock time (first reference time) required for the operation can be set and changed. In other words, when the operation means 11 is operated continuously for the key lock time or longer, the operation is recognized, and an effective state is entered in which various settings can be changed. On the other hand, when the operating means 11 is not operated continuously for a predetermined time or longer under a predetermined condition, control is performed so as to set an invalidation state in which various setting changes cannot be performed.

  The operating means 11 includes a first key 12 that can be switched between a setting mode for performing a setting operation and a detection mode for performing a detection operation, and a second key capable of inputting information for performing the setting operation in the setting mode. In the CPU 20, when the first key 12 is not operated continuously for the predetermined time (that is, the key lock time N), the function setting is invalidated (specifically, the first key 12). If the key is not operated for more than the key lock time N, various settings cannot be made. On the other hand, when the first key 12 is continuously operated for the key lock time N or longer, the function setting is activated. I do. That is, when the CPU 20 (operation recognition unit) recognizes that the operation of the operation unit 11 (here, the first key 12) continues for a key lock time N or longer, the detection mode is switched to the setting mode. It has become. On the other hand, in the setting mode, when it is detected by the CPU 20 (operation recognition means) that the operation means 11 has not been operated continuously for a predetermined time or more, the setting mode is switched to the detection mode. ing.

Next, the flow of processing will be described with reference to FIGS.
In the present embodiment, various setting processes are started when the operator operates the operation unit 11 in the RUN mode. Then, in S10, it is determined whether or not the operation means 11 has been pressed for a certain time (second reference time or more). If the operation means 11 is pressed for a long time, the continuous operation time and key lock time (first time) Difference information corresponding to the difference from (1 reference time) is displayed (S20). Since this difference information changes as the continuous operation time increases, the display also changes as the continuous operation time increases.

  Specifically, when the continuous operation time in the operation means 11 becomes equal to or longer than a certain time (second reference time), as shown in FIG. 10, the continuous operation time and the key lock time (first reference time) The level corresponding to the difference between the two is displayed as a bar graph using the segments of each digital display unit, and as shown in FIGS. 11 and 12, the display control is performed so that the number of bars decreases as the continuous operation time increases. I do. And when the long press continues more than the key lock time N, it progresses to Yes in S30 and performs a setting process in S40. When the continuous operation time in the operation means 11 becomes equal to or longer than the key lock time (first reference time) as described above, the display content on the display means 16 is determined according to the difference between the continuous operation time and the first reference time. Display contents (that is, display of difference information), display contents corresponding to a recognized predetermined operation (continuous operation, that is, release operation for releasing key lock) (that is, display contents for performing setting processing in S40) ) To change.

  The level corresponding to the difference between the continuous operation time and the key lock time (first reference time) may be numerically displayed using segments of each digital display unit as shown in FIG. As shown in FIG. 14 and FIG. 15, display control is performed so that the numerical value decreases as the continuous operation time increases.

  In the setting process, as shown in S100, S120, S140, S160, S180, and S200, each function can be set, and when changing the setting of any function, S100, S120, S140, Yes is selected in S160, S180, and S200, and settings are made in S110, S130, S150, S170, S190, and S210.

  Further, when setting the key lock time until the invalidation state is set, the process proceeds to Yes in S180 and is performed in the process of S190. In the process of S190, detailed setting can be performed, and as shown in FIG. 7, detailed setting of each process (process 1 to process 4) and key lock time setting process is performed. Processes 1 to 4 correspond to the setting change processes of response time switching, timer setting, hysteresis, stability, and shift shown in FIG.

  On the other hand, when setting the time until the invalidation state is set (that is, when setting the key lock time), Yes is selected in S410, and the process of S420 is performed. In the process of S420, as shown in FIG. 8, when setting the key lock time, the process proceeds to Yes in S421, prompting the input of the key lock time, and when the key lock time is input from the operator, The key lock time (key lock time N) is stored in the memory. The stored key lock time N is used in the process of FIG.

  Returning to FIG. 5, if the operation is performed within the key lock time N stored in the memory after the setting process is completed, the process of S40 is repeated again. On the other hand, if the operation is not performed within the key lock time N after the setting process is completed, the disabled state is set in S60. When set to the invalid state, the setting cannot be changed unless the key is pressed for longer than the key lock time N (that is, N in S30). Conversely, the key is pressed longer than the key lock time N. Then, the setting is changed to an enabled state (that is, the process proceeds to Yes in S30, and the setting process in S40 is possible).

  In addition, you may make it like FIG. In FIG. 9, when the first key 12 (mode key) is pressed for longer than the key lock time N, the setting process shown in FIG. 6 is started, and the first key 12 and the second key 14 are started. When both are pressed for longer than the key lock time N, invalidation processing is performed (S630). That is, in the example of FIG. 5, after the setting process, the key lock state is automatically set when a certain time has passed in the non-operation state. However, in the example of FIG. 9, the processes of S50 and S60 in FIG. As shown in FIG. 9B, when the first key 12 and the second key 14 are pressed for longer than the key lock time N, the key lock is turned on (invalidated state). In the invalid state, as shown in S520, the setting process of S530 can be performed only when the first operation key 12 is pressed and held for a key lock time N or longer (that is, in this case). You can only change the setting of the function.

  In the example of FIG. 9, when the setting process is started as shown in S500 and S510, or in the invalidation state as shown in S600 and S610, a long time has passed for a certain period of time. In addition, difference information corresponding to the difference between the continuous operation time and the key lock time (first reference time) is displayed. Any difference information may be displayed as shown in FIGS. 10 to 12 or as shown in FIGS. 13 to 15.

  Note that the detection sensor 10 of the present embodiment is based on the operation of the operation means 11 and displays a display mode for displaying the level of the detection signal and a display mode for displaying a level corresponding to the difference between the continuous operation time and the first reference time. Control to switch between and is possible. As described above, the CPU functions as mode switching means for performing such mode switching.

<Other embodiments>
(1) In the above embodiment, the difference information corresponding to the difference between the continuous operation time and the first reference time is displayed as “information according to the continuous operation time”, but the continuous operation time is displayed. May be. In this case, it is possible to grasp how long the worker has advanced by displaying the continuous operation time.

The figure which illustrates the detection sensor concerning Embodiment 1 of the present invention. Block diagram of the detection sensor of FIG. Explanatory drawing explaining switching of the setting item based on operation of the 1st key Explanatory drawing explaining switching of detailed settings including key lock setting Flowchart explaining function setting flow Flow chart explaining the flow of basic setting processing Flow chart showing the flow of various settings including key lock settings Flowchart illustrating key lock setting process Flowchart illustrating a processing example different from FIG. Explanatory drawing which shows the display example 1 of the level according to the difference of continuous operation time and 1st reference time. Figure following Figure 10 Figure following Figure 11 Explanatory drawing which shows the example 2 of a display of the level according to the difference of continuous operation time and the 1st standard time. Figure following Figure 13 Figure following Figure 14

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Detection sensor 11 ... Operation means 12 ... 1st key (operation means)
14 ... Second key (operation means)
16 ... display means 20 ... CPU (operation recognition means, display control means, detected object detection means, processing execution means, mode switching control means)
24. Light receiving means (physical quantity detecting means)

Claims (7)

Physical quantity detection means for outputting a detection signal at a level corresponding to the detection state of the detected object;
Detected object detection means for detecting the detected object based on a level of the detection signal and a predetermined detection condition;
Operation means that can be operated by an operator;
An operation recognizing unit that measures a continuous operation time when the operation unit is operated continuously, and recognizes that a predetermined operation is performed when the continuous operation time is equal to or longer than a first reference time;
Processing execution means for performing processing based on the predetermined operation recognized by the operation recognition means;
A detection sensor comprising:
Display means;
Display control means for performing display control of the display means,
The display control means includes
When the continuous operation time in the operation means is equal to or longer than a second reference time shorter than the first reference time, information corresponding to the continuous operation time is displayed on the display means. . The detection sensor according to claim 1, wherein the information corresponding to the continuous operation time is difference information corresponding to a difference between the continuous operation time and the first reference time. The display control means includes
The detection sensor according to claim 2, wherein a bar graph having a level corresponding to a difference between the continuous operation time in the operation unit and the first reference time is displayed on the display unit. The display means is constituted by a digital display unit,
The display control means includes
When the detected object is detected by the detected object detecting means, a level corresponding to the detection signal is displayed on the digital display unit,
When the continuous operation time at the operation means becomes equal to or longer than the second reference time, a level corresponding to a difference between the continuous operation time and the first reference time is displayed on the digital display unit. The detection sensor according to claim 2. Mode switching that automatically switches between a display mode that displays the level of the detection signal and a display mode that displays a level corresponding to the difference between the continuous operation time and the first reference time based on the operation of the operation means. The detection sensor according to claim 4, further comprising a control unit. The display means is composed of a plurality of digital display units in a 7-segment format,
The display control means includes
When the detection object is detected by the detection object detection means, the level of the detection signal is displayed on the digital display unit,
When the continuous operation time in the operation means becomes equal to or longer than the second reference time, a level corresponding to the difference between the continuous operation time and the first reference time is used for each segment of the digital display unit. 4. The detection sensor according to claim 3, wherein a bar graph is displayed. The display control means includes
When the continuous operation time at the operation means is equal to or longer than the first reference time, the display content on the display means is changed from the display content according to the difference between the continuous operation time and the first reference time, The detection sensor according to any one of claims 1 to 6, wherein the display content is changed according to the predetermined operation recognized by the operation recognition means.

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