JP2010133809A - Equipment information display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an equipment information display device for facilitating the worker's confirmation work of display information by changing transition time intervals of a plurality of pieces of display information. <P>SOLUTION: The equipment information display device 100 includes: a display means 80 for displaying a plurality of pieces of display information having a plurality of pieces of equipment information; and a display information transition means 50 for making the transition of display information displayed on the display means 80 at a prescribed time interval. The equipment information display device further includes: at least one change instruction detection means 110 for detecting instructions for changing the time interval; and a transition time changing means 120 for changing the time interval based on signals detected by the change instruction detection means 110. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a device information display device, and more particularly to a device information display device that can change a transition time interval of a plurality of display information.

  As a distributed control system used in a chemical plant or the like, a system in which a host device and a field device are connected to each other by a digital signal transmission line such as a field bus is known (Non-Patent Document 1 (for example, FIG. 1). )reference). Such a distributed control system will be described with reference to the configuration diagram of FIG.

  6, the distributed control system 10 includes a field device (differential pressure transmitter 2, differential pressure transmitter 2, The flow meter 3, the temperature transmitter 4) and the device information display device 8 are connected.

  The differential pressure transmitter 2 measures a high pressure side or a low pressure side static pressure, or a differential pressure between the high pressure side static pressure and the low pressure side static pressure with respect to a throttle (orifice plate or the like) inserted in the pipe 1.

  A flow meter 3 such as an electromagnetic flow meter measures the flow rate of the fluid to be measured FLD. In addition, the temperature transmitter 4 measures temperature at multiple points such as the temperature of the fluid FLD to be measured (hereinafter referred to as “temperature 1”) and the surface temperature of the pipe 1 (hereinafter referred to as “temperature 2”).

  The host device 7 receives digital signals representing the measured values of the differential pressure, the static pressure, the flow rate, and the temperature from the differential pressure transmitter 2, the flow meter 3, and the temperature transmitter 4 through the field bus 5, and uses them. Control pressure, flow rate and temperature.

  The device information display device 8 acquires a plurality of device information such as measured values and tag information from the differential pressure transmitter 2, the flow meter 3, and the temperature transmitter 4, and generates a plurality of display information from these device information. The display information is displayed while transitioning at predetermined time intervals. Below, the apparatus information display apparatus 8 is demonstrated.

  FIG. 7 is a configuration diagram of the device information display device 8 in which field devices are connected via the field bus 5. In FIG. 7, the device information display device 8 includes device information acquisition means 30, display information generation means 40, display information transition means 50, and display means 80.

  The display information transition means 50 includes a display information selection means 60 and a selection activation signal generation means 70. The selection activation signal generation means 70 includes a counting means 71, a comparison means 73, and a comparison reference value REF.

  The device information acquisition unit 30 is connected to the field device via the field bus 5 and outputs a plurality of device information acquired from the field device to the display information generation unit 40.

  The display information generation unit 40 generates a plurality of display information having a plurality of device information received from the device information acquisition unit 30, and outputs the plurality of display information to the display information selection unit 60.

  The display information selection means 60 selects display information to be displayed on the display means 80 from the plurality of display information received from the display information generation means 40 according to the selection activation signal input from the selection activation signal generation means 70, and displays the display information. It outputs to the means 80.

  The comparison unit 73 receives the comparison reference value REF and the count value from the counting unit 71, and compares both values and outputs a selection activation signal to the display information selection unit 60 at a predetermined time interval when they match. The display unit 80 displays the display information received from the display information selection unit 60.

  In this way, the display information selection means 60 in the display information transition means 50 changes the display information to be displayed on the display means 80 at a predetermined time interval according to the selection activation signal, and the display means 80 displays a plurality of display information. Transition to display.

  Next, a plurality of display information generated by the display information generating means 40 will be described in detail with reference to FIG.

  FIG. 8A shows first (differential pressure) display information H1 having a plurality of pieces of device information such as differential pressure values acquired from the differential pressure transmitter 2. FIG. In FIG. 8A, as a plurality of device information, for example, tag information K1a of the differential pressure transmitter 2 that outputs a differential pressure value, measured value type information K1b that represents the type of a measured value (differential pressure value in this case), A measured value (here, differential pressure value) K1c and device state information K1d representing the operating state of the differential pressure transmitter 2 are shown. In the device status information K1d, “Good” represents a normal state and “Bad” represents an abnormal state.

  Similarly, FIG. 8B represents second (static pressure) display information H2 having a plurality of pieces of device information such as a static pressure value acquired from the differential pressure transmitter 2.

  FIG. 8C shows third (flow rate) display information H <b> 3 having a plurality of pieces of device information such as flow rate values acquired from the flow meter 3.

  FIG. 8D shows fourth (temperature 1) display information H4 having a plurality of pieces of device information such as temperature 1 acquired from the temperature transmitter 4.

  FIG. 8E shows fifth (temperature 2) display information H5 having a plurality of pieces of device information such as temperature 2 acquired from the temperature transmitter 4. Note that the first (differential pressure) display information H1 to the fifth (temperature 2) display information H5 may include other pieces of information as well as a plurality of pieces of device information, or may include only a plurality of pieces of device information.

  The display information transition means 50 includes first (differential pressure) display information H1, second (static pressure) display information H2, third (flow rate) display information H3, fourth (temperature 1) display information H4, and fifth. (Temperature 2) The display information to be displayed on the display means 80 is changed at predetermined time intervals by repeating the display information H5 in this order.

  Next, the transition of display information by the display information transition means 50 will be described with reference to the operation flowchart of FIG.

  In step S 10 of FIG. 9, the display information selection unit 60 selects initial display information to be displayed at the time of activation, and outputs it to the display unit 80. Here, the initial display information is first (differential pressure) display information H1 in FIG.

  In step S20 of FIG. 9, the counting means 71 starts counting after setting the count value to zero. For example, a counter or a timer is used as the counting means 71, and count-up or time measurement is performed.

  In step S <b> 30, the comparison unit 73 compares the comparison reference value REF with the count value of the counting unit 71. As a result of the comparison, if the count value is smaller than the comparison reference value REF (“No” in step S30), step S30 is repeated.

  On the other hand, if both values match (“Yes” in step S30), the process proceeds to step S40. In step S <b> 40, the comparison unit 73 outputs a selection activation signal to the display information selection unit 60.

  Here, as the comparison reference value REF, a value is set in advance so that the time until the count value reaches the comparison reference value REF from zero is a predetermined time interval (for example, 2 seconds). The comparison reference value REF may be stored in advance in storage means (not shown).

  In step S50, the display information selection means 60 selects the second (static pressure) display information H2 in FIG. 8B, which is the next display information, according to the selection activation signal, and outputs it to the display means 80.

  As a result, the display information selection means 60 causes the display information to be displayed on the display means 80 to transition from the first (differential pressure) display information H1 to the second (static pressure) display information H2 at a predetermined time interval.

  In step S60, the counting means 71 starts counting after setting the count value to zero. Then, it returns to step S30 and repeats step S30 to step S60. By this repetition, the display information of the display unit 80 repeatedly changes in the order of FIGS. 8A to 8E as shown in FIG. It should be noted that the transition can be repeated in the reverse order.

Hiroshi Mori and three others, “CENTUM CS Fieldbus Communication Function”, Yokogawa Technical Journal, Yokogawa Electric Corporation, April 20, 1998, Vol. 42 no. 2 (1998) p. 63-66

  However, since the transition of the display information is performed at a predetermined time interval, for example, when the interval is as short as 2 seconds, there is a problem that it is difficult for the operator to confirm or record the display information.

  In addition, since a plurality of display information has transitioned, when an operator overlooks the display information to be confirmed or wants to confirm again, the worker has to wait until the display information transitions and is displayed. is there.

  For example, when the display information shown in FIGS. 8A to 8E has transitioned, the operator must wait for 10 seconds when he / she wants to confirm the first (differential pressure) display information H1 again.

  An object of the present invention is to provide a device information display device that makes it easy for an operator to check display information by changing the transition time interval of a plurality of display information.

In order to achieve such an object, the invention of claim 1
In a device information display device comprising: display means for displaying a plurality of display information having a plurality of device information; and display information transition means for transitioning the display information displayed on the display means at a predetermined time interval.
At least one change instruction detecting means for detecting an instruction to change the time interval;
Transition time changing means for changing the time interval based on a detection signal of the change instruction detecting means;
It is provided with.
The invention of claim 2 is the invention of claim 1,
The transition time changing means makes the time interval longer than a current time interval.
The invention of claim 3 is the invention of claim 1 or 2,
The transition time changing means makes the time interval shorter than a current time interval.
The invention of claim 4 is the invention of claim 2,
The transition time changing means is characterized in that the time interval is set to an infinite time interval and is longer than the current time interval.
The invention of claim 5 is the invention of claim 3,
The transition time changing means sets the time interval to zero and makes it shorter than the current time interval.
The invention of claim 6 is the invention of claim 3 or 5,
The transition time changing means makes the time interval shorter than the current time interval, and makes the time interval longer than the current time interval after the display information has changed N times (N is a natural number). .
The invention according to claim 7 is the invention according to any one of claims 1 to 6,
The change instruction detecting means is arranged around the display means.
The invention of claim 8 is the invention according to any one of claims 1 to 7,
The change instruction detecting means is detected by a non-contact method.

  According to the present invention, the transition time changing means changes the transition time interval of the plurality of display information based on the detection signal of the change instruction detecting means, so that the operator can check the display information that the operator wants to check. Confirmation or recording can be performed, and a waiting time until the display information to be confirmed can be shortened can be shortened. Thereby, the operator's confirmation work can be facilitated.

[First embodiment]
A first embodiment will be described with reference to FIG. FIG. 1 is a configuration diagram of a device information display device 100 according to the present invention.

  1, the device information display device 100 includes a change instruction detection unit 110 and a transition time change unit 120 in addition to the configuration of the device information display device 8 of FIG.

  The features of the device information display device 100 are a change instruction detection unit 110 and a transition time change unit 120, which will be described below mainly. In addition, the same component as the apparatus information display apparatus 8 of FIG.

  The change instruction detection unit 110 detects a change instruction signal MD instructing a change in a time interval (hereinafter referred to as “transition time interval”) for transition of display information, and outputs this detection signal to the transition time change unit 120.

  The transition time changing unit 120 changes the transition time interval based on the detection signal received from the change instruction detecting unit 110. For example, the transition time changing unit 120 increases the comparison reference value REF to increase the transition time interval, and decreases the comparison reference value REF to shorten the transition time interval.

  Next, a case where a Hall element is used for the change instruction detection unit 110 will be described with reference to the configuration diagram of the change instruction detection unit 110 in FIG.

  In FIG. 2, the change instruction detecting means 110 (Hall element) includes a Hall IC switch 111 inside.

  The Hall IC switch 111 detects magnetism generated from an external magnet 112. When the magnet 112 is moved away from the Hall IC switch 111 by a certain distance, the Hall IC switch 111 does not detect magnetism and connects the internal switch to the circuit common voltage Vcom. Then, the change instruction detecting unit 110 (Hall element) outputs the circuit common voltage Vcom to the transition time changing unit 120.

  On the other hand, when the magnet 112 is brought close to the Hall IC switch 111 within a certain distance, the Hall IC switch 111 detects magnetism and connects the internal switch to the power supply voltage Vcc. Then, change instruction detecting means 110 (Hall element) outputs power supply voltage Vcc to transition time changing means 120.

  When the operator changes the transition time interval, the change instruction detection unit 110 (Hall element) detects magnetism (change instruction signal MD) by bringing the magnet 112 closer to the Hall IC switch 111, and Power supply voltage Vcc (detection signal) is output to transition time changing means 120.

  Next, the transition time interval changing process performed by the transition time changing unit 120 will be described with reference to FIG. A description will be given separately when the transition time interval is lengthened and shortened.

<To increase the transition time interval>
A case where the transition time interval is made longer than the current time interval will be described. In step S <b> 100 of FIG. 3, the transition time changing unit 120 determines whether a detection signal is received from the change instruction detecting unit 110. If not received (“NO” in step S100), step S100 is repeated.

  On the other hand, if it has been received (“Yes” in step S100), the process proceeds to step S110. In step S110, the transition time changing means 120 makes the comparison reference value REF larger than the currently set value.

  In step S <b> 120, the transition time changing unit 120 determines whether a detection signal is received from the change instruction detecting unit 110. If the magnet 112 continues to approach the Hall IC switch 111 (“Yes” in Step S120), Step S120 is repeated.

  While the step S120 is repeated, the comparison reference value REF remains large, and the step S30 of FIG. 9 executed in parallel with this process repeats the step S30 longer as the comparison reference value REF is increased (FIG. 9). 9 “No” in step S30).

  Therefore, the display information does not transition to the next display information during this period, and the currently displayed display information is displayed longer by this amount. For example, if the comparison reference value REF is increased so that the transition time interval is 60 seconds, the currently displayed display information is displayed for 60 seconds.

  Returning to step S120 of FIG. 3, when the magnet 112 moves away from the Hall IC switch 111, the transition time changing unit 120 does not receive a detection signal from the change instruction detecting unit 110 (“No” in step S120). The process proceeds to S130.

  In step S130, the transition time changing unit 120 changes (returns) the comparison reference value REF to a normal value (for example, an initially set comparison reference value (time interval 2 seconds)). Then, it returns to step S100 and repeats step S100 to step S130.

  As described above, the transition time changing unit 120 makes the comparison reference value REF larger than the current set value and makes the transition time interval longer than the current time interval based on the detection signal of the change instruction detecting unit 110. The operator can confirm or record the display information to be confirmed only for the time when he / she wants to confirm, and can confirm or record the display information within one display time. Thereby, the operator's confirmation work can be facilitated.

  Next, a case where the transition time interval is made infinite will be described as another example. In this case, in step S110 of FIG. 3, the transition time changing unit 120 sets the comparison reference value REF to an infinite value.

  As a result, the transition time changing unit 120 sets the transition time interval to an infinite time interval, that is, the display information transition stops, so that the operator confirms or records the display information to be confirmed while it is stopped. Work can be facilitated.

  In step S110, the transition time changing unit 120 may stop the counting operation of the counting unit 71 or stop the selection operation of the display information selecting unit 60. Thereby, the transition time interval becomes an infinite time interval, and the transition of the display information can be stopped.

  When this process is executed, in step S130, the transition time changing unit 120 starts the counting operation of the counting unit 71 or starts the selection operation of the display information selecting unit 60.

<To shorten the transition time interval>
The case where the transition time interval is made shorter than the current time interval will be described focusing on the difference from the case where the transition time interval is made longer. In step S110 of FIG. 3, the transition time changing means 120 makes the comparison reference value REF smaller than the currently set value.

  Then, the comparison reference value REF remains small while the step S120 is repeated, and the step S30 of FIG. 9 executed in parallel with this process shortens the repetition time by reducing the comparison reference value REF. .

  For this reason, the currently displayed display information is displayed shorter by this amount. For example, if the comparison reference value REF is reduced so that the transition time interval is 0.5 seconds, the currently displayed display information is displayed for 0.5 seconds.

  In this way, the transition time changing unit 120 makes the comparison reference value REF smaller than the current set value and makes the transition time interval shorter than the current time interval based on the detection signal of the change instruction detecting unit 110, The worker can shorten the waiting time until the display information to be confirmed is changed, thereby facilitating the work.

  For example, when the display information shown in FIGS. 8A to 8E has transitioned, when the operator wants to confirm the first (differential pressure) display information H1 again, the worker waits for 2.5 seconds. That's it.

  As another example of shortening the transition time interval, in step S110 of FIG. 3, the transition time changing unit 120 sets the comparison reference value REF to zero and sets the transition time interval to zero. The waiting time for transition to display information to be confirmed can be eliminated.

  In order to perform this operation, in step S110, the transition time changing unit 120 makes the count value of the counting unit 71 coincide with the comparison reference value REF, or forcibly performs the selection operation of the display information selection unit 60. You may let them.

[Second Embodiment]
A second embodiment will be described with reference to FIG. FIG. 4 is an operation flowchart showing another example of the transition time interval changing process performed by the transition time changing unit 120. Below, it demonstrates centering on difference with a 1st Example.

  In step S <b> 200 of FIG. 4, the transition time changing unit 120 determines whether a detection signal is received from the change instruction detecting unit 110. If not received (“NO” in step S200), step S200 is repeated.

  On the other hand, if it has been received (“Yes” in step S200), the process proceeds to step S210. In step S210, the transition time changing unit 120 makes the comparison reference value REF smaller than the currently set value. This makes the transition time interval shorter than the current time interval.

  The transition time changing unit 120 sends a signal indicating that the comparison reference value REF has been reduced to the display information selecting unit 60. After receiving this signal, the display information selection means 60 changes the display information N times (N is a natural number) and then sends a signal indicating that this operation has been performed (hereinafter referred to as “N-time transition completion signal”). This is sent to the transition time changing means 120.

  In step S220, the transition time changing unit 120 waits for reception of a transition completion signal N times. If not received (“No” in step S220), step S220 is repeated.

  On the other hand, if it has been received (“Yes” in step S220), the process proceeds to step S230. In step S230, the transition time changing unit 120 makes the comparison reference value REF larger than the currently set value. This makes the transition time interval longer than the current time interval.

  In step S240, the transition time changing unit 120 determines whether a detection signal is received from the change instruction detecting unit 110. If the magnet 112 continues to approach the Hall IC switch 111 (“Yes” in step S240), step S240 is repeated.

  Transition time interval in which the current display is the first (differential pressure) display information H1 in FIG. 8A, the transition time interval shortened in step S210 is 0.5 seconds, N in step S220 is “1”, and the transition time is long in step S230. When the interval is 60 seconds, the following operations can be performed by the processing so far.

  When the information that the operator wants to confirm is the second (static pressure) display information H2 in FIG. 8B, the display information quickly transitions to the second (static pressure) display information H2 (after 0.5 seconds). After that, the second (static pressure) display information H2 is displayed for a long time (60 seconds).

  When the information that the operator wants to confirm is the third (flow rate) display information H3 in FIG. 8C, if N is set to “2”, the third (flow rate) display information H3 is quickly displayed (after 1 second). After the transition to (0.5 seconds × 2)), the third (flow rate) display information H3 is displayed for a long time (60 seconds). The value of N is stored in storage means (not shown) and can be changed.

  Returning to step S240 in FIG. 4, when the magnet 112 moves away from the Hall IC switch 111, the transition time changing unit 120 does not receive the detection signal from the change instruction detecting unit 110 (“No” in step S240). The process proceeds to S250.

  In step S250, the transition time changing unit 120 changes (returns) the comparison reference value REF to a normal value. Then, it returns to step S200 and repeats step S200 to step S250.

  In this way, the transition time changing unit 120 makes the transition time interval shorter than the current time interval based on the detection signal of the change instruction detecting unit 110, and after the display information has transitioned N times, the transition time interval is set to the current time interval. By making it longer than the time interval, the worker can reduce the waiting time until transition to the display information to be confirmed, and can confirm or record only the time for which the display information is to be confirmed. Display information can be confirmed or recorded within the display time. Thereby, the operator's confirmation work can be facilitated.

[Third embodiment]
A third embodiment will be described with reference to FIG. FIG. 5 is a layout diagram of the display unit 80 and the change instruction detection units 110a to 110d.

  In FIG. 5, a display unit 80 is disposed on a printed circuit board 115, and four change instruction detection units 110 a to 110 d are disposed around the display unit 80.

  Specifically, change instruction detection means 110a to 110d are arranged on the upper side, lower side, left side, and right side of the display means 80, respectively.

  The change instruction detection units 110a to 110d output change instruction detection signals to the transition time change unit 120, respectively.

As an example, the transition time changing unit 120 performs the following operations (1) to (4).
(1) The transition time changing unit 120 makes the comparison reference value REF larger than the current set value and makes the transition time interval longer than the current time interval based on the detection signal from the change instruction detecting unit 110a.
(2) The transition time changing unit 120 sets the comparison reference value REF to an infinite value based on the detection signal from the change instruction detecting unit 110b, and stops the transition of the display information.
(3) The transition time changing unit 120 makes the comparison reference value REF smaller than the current set value and makes the transition time interval shorter than the current time interval based on the detection signal from the change instruction detecting unit 110c.
(4) The transition time changing unit 120 sets the comparison reference value REF to zero and sets the transition time interval to zero based on the detection signal from the change instruction detecting unit 110d.

  Then, the worker brings the magnet 112 closer to the change instruction detection means 110a to 110d corresponding to the transition time to be changed.

  Thus, the operator can confirm or record the display information desired to be confirmed through the change instruction detecting means 110a and 110b only for the time when the operator wants to confirm the information, and via the change instruction detecting means 110c and 110d. The waiting time until transition to display information to be confirmed can be shortened. Thereby, the operator's confirmation work can be facilitated.

  In this way, it is possible to flexibly respond to the operator's request to make the transition time longer or shorter.

  The transition time changing unit 120 can perform the processing described in the second embodiment based on the detection signal of any one of the change instruction detecting units 110a to 110d.

  The change instruction detection means 110 described in each embodiment detects the change instruction signal MD by a non-contact method using magnetism. As another example of detection by a non-contact method, infrared using a remote controller capable of infrared communication and wireless using a wireless mouse can be used.

  As described above, the change instruction detection unit 110 detects the change instruction signal MD by a non-contact method, so that the device information display device 100 can be used even in a dangerous atmosphere where explosive gas exists such as an explosion-proof region. Can do.

  The device information acquisition means 30, display information generation means 40, display information transition means 50, display information selection means 60, selection activation signal generation means 70, counting means 71, comparison means 73, and transition time change means 120 are predetermined It may be realized by a processor such as a CPU that executes a program, or may be realized by a logic circuit or the like. As the display means 80, various display means such as liquid crystal display and CRT can be used.

  The field bus 5 can be a foundation field bus or a profile bus that transmits digital signals. In addition, the form by which apparatus information is transmitted to the apparatus information display apparatus 100 via the separate cable from a field apparatus using the analog signal represented by 4-20 mA may be sufficient.

  The device connected to the device information display device 100 may be various measuring devices in addition to field devices.

  In addition, this invention is not limited to the above-mentioned Example, In the range which does not deviate from the essence, many changes and deformation | transformation are included. Moreover, combinations other than the combination of each means mentioned above can be included.

It is an example of the block diagram of the apparatus information display apparatus to which this invention is applied. It is an example of the block diagram of the change instruction | indication detection means to which this invention is applied. It is an example of the operation | movement flowchart figure of the transition time change means shown in FIG. It is another example of the operation | movement flowchart figure of the transition time change means shown in FIG. It is an example of the layout of a display means and a change instruction detection means. It is an example of a block diagram of the distributed control system shown by background art. It is an example of the block diagram of the apparatus information display apparatus shown in FIG. It is an example of the display information produced | generated and displayed with the apparatus information display apparatus shown in FIG. It is an example of the operation | movement flowchart figure of the display information transition means shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 30 Device information acquisition means 40 Display information generation means 50 Display information transition means 60 Display information selection means 70 Selection start signal generation means 71 Count means 73 Comparison means 80 Display means 100 Equipment information display apparatus 110 Change instruction detection means 120 Transition time change means REF comparison reference value

Claims (8)

In a device information display device comprising: display means for displaying a plurality of display information having a plurality of device information; and display information transition means for transitioning the display information displayed on the display means at a predetermined time interval.
At least one change instruction detecting means for detecting an instruction to change the time interval;
Transition time changing means for changing the time interval based on a detection signal of the change instruction detecting means;
A device information display device comprising:   The apparatus information display device according to claim 1, wherein the transition time changing unit makes the time interval longer than a current time interval.   The apparatus information display device according to claim 1, wherein the transition time changing unit makes the time interval shorter than a current time interval.   3. The device information display device according to claim 2, wherein the transition time changing means sets the time interval to an infinite time interval and makes it longer than the current time interval.   4. The apparatus information display device according to claim 3, wherein the transition time changing means sets the time interval to zero and makes it shorter than a current time interval.   The transition time changing means makes the time interval shorter than the current time interval, and makes the time interval longer than the current time interval after the display information has changed N times (N is a natural number). The device information display device according to claim 3 or 5.   The device information display device according to claim 1, wherein the change instruction detection unit is arranged around the display unit.   The apparatus information display device according to claim 1, wherein the change instruction detection unit detects the change instruction by a non-contact method.

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