JP2006330878A - Plant monitor controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plant monitor controller for safely monitoring the operating status of a plant in an operating interface device(OIS). <P>SOLUTION: A graphic screen 301 showing a current status and a graphic screen 302 showing a status at the same time on the pervious day are simultaneously displayed on one screen of The CRT display device of an OIS. Thus, it is possible to easily confirm whether or not the current status of the equipment or facility of a plant is the same as a certain specific date and time, that is, the status at the same time on the previous day. Thus, it is possible to safely monitor the operating status of a plant by assisting an operator to judge that the operating status of the plant is abnormal. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a plant monitoring control apparatus that displays a graphic screen representing a state of a plant on a display device to monitor and control the plant.

  The plant monitoring and control device is created by simulating a plant displayed on a display device such as a CRT or LCD in an operator interface device (hereinafter referred to as OIS) when an operator operates the plant equipment. A graphic screen (or called a process flow screen. In the present invention, the notation is unified on the graphic screen), the symbol of the device assigned to the graphic screen is changed, and if it is a measured value, the sensor The value indicated by the sensor is displayed numerically in the vicinity of the symbol to inform the operator of the current state of the plant, and the operator observes the state of the plant by looking at the graphic screen.

  For example, in a building facility monitoring and control apparatus, a floor in a building is displayed as a graphic screen, in which an air conditioner to be monitored is turned on / off, lighting is turned on / off, a security key is locked / At the same time, the key opening state, the fire occurrence state for disaster prevention, etc. are displayed as symbols, and the values indicated by the sensors such as the room temperature and humidity are displayed numerically.

  This graphic screen is constantly updated to the latest state at regular intervals, and the operator is informed of the state of the building facility. The operator looks at the graphic screen and monitors whether there is an abnormality in the state of the building facility. Was.

  On the other hand, in the case of a building facility, the operation of the facility is generally the same operation state every weekday on weekdays and every holiday on holidays, and it may be different from a general day rarely called a special day. is there.

  For example, the entrance lighting on the first floor is turned on at 6:00 on weekdays and turned off at 22:00 on weekdays. On holidays, the lights turn on at 8:00 and turn off at 18:00. On a specific day, there are many cases where a pattern such as lighting at 10:00 and turning off at 24:00 is determined.

  Since there are many such operations, the plant supervisory control device schedules such operations in advance, and if it is a weekday decision, a lighting command is output from the supervisory control device side at 6:00 and the lighting is turned on. In general, schedule control (hereinafter referred to as schedule control) is performed in which a turn-off command is output at 22:00 and the lights are turned off. Therefore, it is generally rare that the operator himself manually outputs the lighting command at 6:00. Especially in large-scale buildings, there are many cases in which the lighting is automatically performed by the above-described schedule control instead of leaving it to the operator. Although lighting was taken as an example, the same applies to air conditioners, air conditioners, and the like.

  On the other hand, as an operator's work, it has been a normal operation to monitor the graphic screen and check whether the lighting is correctly lit or whether the air conditioner is operating correctly.

  Here, the operator has grasped the above-described schedule control state, and has been monitoring from the viewpoint that it is in an abnormal state if the illumination is turned off during this time zone.

  However, in recent large-scale building facilities, it has become difficult for operators to grasp all the conditions, and it was an important issue to check how the building facilities are operating as usual. .

  Of course, for example, failure of the air conditioner itself is taken into the plant monitoring and control device, and if a failure occurs, an alarm can be sounded and notified to the operator, but the operational status of the building facility cannot be confirmed. It was. There were also cases where unexpected devices were suddenly operated due to mistakes.

In Patent Document 1, it is described that the past operation history and the state are displayed as a playback, but this is a method for designating a past playback start time. For example, it is not possible to confirm whether the operation is the same as the normal day, for example, compared with the state of yesterday.
JP 2003-50622 A

  In the plant monitoring and control apparatus described above, the operator cannot find that the facility operating state is different from the normal state, and in operation, the plant and the user who uses the plant (for example, in a building facility, customers who have visited the building) ) May cause operational inconvenience. Moreover, even if it is said that there is an operational inconvenience, in the case of a building facility as an example, there are cases where the lighting is not turned on, which hinders the walking of the customer or the customer is injured. In addition, there were many cases in which the operator confirmed the state of the building facility in a hurry after the complaint was raised.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a plant monitoring control device that can safely monitor the operation state of a plant in OIS.

  In order to achieve the above-described object, the present invention provides a graphic of the current state of plant equipment and facilities in a plant monitoring and control apparatus for monitoring and controlling a plant by displaying a graphic screen representing the state of the plant on a display device. Means is provided for simultaneously displaying a screen and a graphic screen of a specific date and time state so that the difference between the specific date and time state of the plant equipment and facilities and the current state can be understood.

  In addition, the present invention includes a difference determination unit that determines a difference between the current state of the plant equipment and facilities and the state of a specific date and time, and issues an alarm on the graphic screen based on the determination result of the difference determination unit. The display of the equipment and facilities in the plant where the differences are identified is displayed in a special state, the status of differences occurring in the entire plant is listed on the display device, and the current state of the equipment and facilities in the plant However, it can be configured to control to be in a state of a specific date and time.

  According to the present invention, the current state of the plant equipment and equipment and the state of the specific date and time are displayed simultaneously, or various operations are performed based on the difference between the current state of the plant equipment and equipment and the state of the specific date and time. By performing the above, the operator can safely monitor the operation state of the plant in the OIS.

  Hereinafter, an embodiment of a plant monitoring and control apparatus according to the present invention will be described with reference to the drawings.

(First embodiment)
First, the first embodiment will be described with reference to FIG. In the present embodiment, a monitoring control device is configured by a CPU (that is, OIS) 101 on which an operator 120 performs a monitoring operation and a PLC 151 that performs an interface with a plant. The OIS 101 includes a CRT display device 111, a keyboard 112, a mouse 113, and a speaker 114 in order to interact with the operator 120.

  In the present embodiment configured as described above, the operator 120 performs display using the keyboard 112 and the mouse 113 in order to display a graphic screen. For example, a graphic screen 201 of a building facility as shown in FIG. 2 is displayed. In this state, the current state of the building facility is displayed. For example, the AHU (fan unit) operation / stop state 202 shown in FIG. 2 is displayed in a red / green state, or the current temperature 203 of the room is displayed as a numerical value.

  Conventionally, such a graphic screen display is generally used, and an operator confirms the state by accurately displaying the current state of the building facility.

  In the present embodiment, from the characteristics of the plant, a graphic screen is used to monitor the plant such that the state of the plant is the same as a specific date and time, and it is the same as the specific date and time. It has a function to display for easy confirmation.

  For example, in the monitoring of a building facility, the state of the building facility is almost the same on weekdays (Monday to Friday) as weekdays and on holidays (Saturday and Sunday) as holidays. If there is, it is a case where the state of the plant can be determined to be normal.

  As shown in the example of FIG. 2, assuming that the lighting facility on / off state 204 is a building facility that is turned on at 6:00 and turned off at 22:00 on weekdays, of course, at 7:00 It needs to be lit. For example, if today is defined as Tuesday, Monday corresponding to yesterday should have been lit at 7:00.

  In such a plant in which a state equivalent to a specific date and time (a specific date and time) can be determined to be correct in the operation of the plant, it can be determined that, for example, a difference from the same time of yesterday is an abnormal state.

  Therefore, in the first embodiment, a specific date and time are simultaneously displayed at the same time as the graphic screen showing the current state so that it can be easily confirmed that the state is the same as a specific date and time. By displaying the status, a function is provided to help the operator determine that the plant operating status is abnormal.

  If the lighting equipment on / off state 204 in FIG. 2 is different from the lighting state at the same time yesterday (when the lighting facility is off), it is useful for determining an abnormality. This is especially useful for monitoring plants that are becoming larger and wider.

  Also, a specific date and time is a weekday or holiday state, the same day of the week last week, the same date of the previous month, or the same month, date and time of the previous year, as described above. It has a function that can be set according to the plant.

  In the example of the building facility described above, there are many examples in which operation is performed by distinguishing between weekdays (Monday to Friday), holidays (Saturday, Sunday), and special days (New Year, Bon holidays, region specific days, etc.).

  FIG. 3 shows a screen example in which two graphic screens are displayed and the current date and time are displayed. That is, the graphic screen 301 indicating the current state and the graphic screen 302 indicating the same time state yesterday are simultaneously displayed on one screen. In this example, although it is difficult to understand from the drawing, the ON / OFF state 204 of the lighting equipment is displayed so that it can be identified by the color of the symbol, although it is currently turned on yesterday but is now turned off. .

  FIG. 4 shows a screen example for setting a specific date and time.

  The specific date / time selection screen 401 is an example in which the mode of the specific date is specified. In this example, the weekday / holiday / singular day mode 402 is selected.

  The time selection screen 403 is an example of designating a time selection mode, and it can be designated whether to display at the same time or display with an offset (display the time shifted by n hours). In this example, the mode 404 for displaying the same time is selected.

  Depending on the graphic screen, it seems that there are few plants that operate with the same date and time. In such a case, it is meaningless to display a screen with a specific date and time on the graphic screen, so it is possible to specify whether or not to display a graphic screen with a specific date and time for each graphic screen. Shall. Also, with the same concept, it is possible to specify whether or not to display a graphic screen of a specific date and time only for a specific device and a specific facility.

  A functional block diagram for realizing this function is shown in FIG. Reference numerals 101, 111, 112, 113, and 151 in FIG. 8 denote a CPU (OIS), a CRT display device, a keyboard, a mouse, and a PLC corresponding to the 101, 111, 112, 113, and 151 in FIG.

  In the CPU (OIS) 101, device operation request information for the PLC 151 is transmitted from the PLC data transmission program 931. The plant information input from the PLC 151 is received by the PLC data receiving program 932 and expanded into the current PLC data 933. The information of the current PLC data 933 is used by the current state display program 911, and the specific date PLC data 920 is displayed. Saved as

  When the operator 120 operates the keyboard 112 and the mouse 113 to display the graphic screen 201 showing the current state as shown in FIG. 2, for example, this operation information is processed by the input processing program 902 and the current PLC data 933 is used. Thus, the graphic screen 201 is displayed on the CRT display device 111 by the current state display program 911 and the graphic screen display program 901.

  Next, in order to confirm that the operator 120 is the same as the state of a specific date and time, for example, an operation for performing a two-screen display of a graphic screen as shown in FIG. When this is done, the operation information is processed by the input processing program 902, and a specific date selection screen as shown in FIG. 4 is displayed on the CRT display device 111, for example. Then, when the operator 120 selects each mode of the specific date / time selection screen 401 and the time selection screen 403, the current state display program 911 and the specific date / time display program 912 are used using the specific date information 921 and the specific date PLC data 920. The graphic screen display program 901 displays the graphic screen on the CRT display device 111 as shown in FIG.

  As described above, in the present embodiment, the current state, a specific date, and a graphic screen that displays the time state are simultaneously displayed on one screen, whereby a specific date with the current state, It is possible to easily confirm whether or not the time is the same as the time, and it is possible for the operator to help determine that the operation state of the plant is abnormal.

(Second Embodiment)
Next, a second embodiment will be described. This second embodiment compares and displays the current plant state and the state of the plant at a specific date and time according to the first embodiment described above, and at the same time checks the state difference on the monitoring control device side, If there is a difference, an alarm is sounded, and the difference portion is displayed on the screen, for example, by flicker (flashing), so that the operator can be notified more easily.

  That is, in the first embodiment described above, the difference is left to the operator for confirmation, but in this second embodiment, the difference is checked on the monitoring control device side, and the flicker display and alarm of the difference portion are checked. A function for notifying the operator is provided.

  FIG. 5 shows an example of a flicker display 501 of a difference portion and an example of an alarm message 502.

  The operation of the present embodiment is executed by the differential alarm processing program 913 of FIG. 8 in addition to the operation of the first embodiment described above, issues an alarm from the speaker 114, and displays on the display screen of the CRT display device 111. As shown in FIG. 5, the flicker display 501 is performed for the difference portion, and the alarm message 502 is displayed at an appropriate position on the display screen (for example, at the top of the screen).

  As described above, according to the present embodiment, the monitoring control device checks the difference between the current plant state displayed in the first embodiment and the plant state at a specific date and time. If there is, a warning is sounded and a warning message is displayed, and at the same time, by displaying a special state such as flickering (flashing), for example, a symbol of equipment or equipment on the screen, from the first embodiment, It is easier to understand and the operator can be informed of differences in plant equipment and facilities.

(Third embodiment)
Next, a third embodiment will be described. In the second embodiment described above, the difference can be confirmed on individual graphic screens. However, in reality, there are many cases where the graphic screen exceeds 100 sheets in a large-scale building. Therefore, in this third embodiment, assuming such a case, in addition to the individual display of the second embodiment, a function for displaying a list of the states of differences occurring in the entire plant is provided. Yes. An example of the specific date difference location list display screen is shown in FIG.

  In FIG. 6, the display 601 of “XX: XX 1F floor screen illumination-1, 2 difference occurrence (currently OFF, specific date ON)” indicates that there is a difference in the status of illumination-1, 2 on the 1F floor screen. ing. In addition, when a “1F floor screen” portion is selected with a mouse or the like, a function of expanding to a difference screen (first embodiment) is also provided.

  The operation of this embodiment is performed using the difference list display program 914 in FIG.

  As described above, in the above-described second embodiment, the operator can check the difference between a specific date and time and the current plant state individually for each graphic screen. In the embodiment, it is possible to display a list of differences occurring in the entire plant, and it is also possible to develop from a list display screen to a graphic screen having individual differences.

(Fourth embodiment)
Next, a fourth embodiment will be described. In the third embodiment, the function is to display a list of locations where the plant state is different from a specific date and time. However, in the fourth embodiment, the state of the device or facility in which the difference has occurred is specified. The monitoring control device has a function of performing control to eliminate the difference so that the date and time are the same. For example, in the example of the third embodiment, the illuminations 1 and 2 are on (lit) on a specific date and time, but are currently off (unlit), so the monitoring control device side determines the difference. At the time, a function of turning on (lighting) is provided.
Of course, in consideration of the safety of the plant, it is possible to select a function of performing control output after confirming the operator and a function of controlling automatically. Of course, there are options that do not control output.

  When the devices and facilities having the difference are controlled to be in the same state as the specific date, the fact that the control is performed as a record is left in the history of the monitoring control device.

  The operation of this embodiment is performed using the differential control output program 915 in FIG.

  As described above, in the above-described third embodiment, it is possible to confirm a difference between a specific date and time and the current plant state. In this fourth embodiment, the third embodiment In addition to the functions of the form, the burden on the operator can be further reduced by providing a function to control the equipment and equipment that have further differences in the state of the specific date and time with the monitoring control device. It becomes possible.

(Fifth embodiment)
Next, a fifth embodiment will be described.

  There are cases where there is no problem even if there is a difference between the state of a specific date and time and the current state in the operation of the plant. For example, there is a case where a difference occurs due to a failure of the equipment or facility, or a difference occurs due to inspection of the equipment or facility.

  In such a case, since there is a difference in the operation of the plant even if there is a difference, there is a problem that an alarm is sounded as in the second embodiment or control output is performed as in the fourth embodiment. In some cases.

  Since such a case is a function assumed in the operation of the plant, from the beginning (for example, when it is known in advance by a failure or inspection, etc.), the function for checking the difference between the corresponding equipment and equipment is excluded. There is a need. Therefore, in the fifth embodiment, a function of excluding the difference check from the graphic screen is provided.

  As a method of excluding, a method of excluding by selecting a device or facility for checking a difference with a mouse or the like can be considered. When a lighting device is selected as shown in FIG. 7, a difference exclusion dialog window 701 is displayed and an exclusion instruction is given. For the excluded devices, the symbols are deleted from the specific date state display screen of FIG. 3, and the difference is not checked.

  The operation of this embodiment is performed using the difference exclusion storage program 941 in FIG. 8, and the excluded device is stored as difference exclusion data 942.

  As described above, in the second or fourth embodiment, the difference between a specific date and time and the current plant state can be checked and output for control. However, there are cases where the current and specific date and time are not the same as the plant status due to equipment inspection or failure. In such a case, in the fifth embodiment, it is possible to have a function of selecting equipment and equipment that excludes the difference check in advance.

The block diagram which shows schematic structure of the 1st-5th embodiment of this invention. The figure which shows the example of a graphic screen. The figure which shows the example of a simultaneous display screen of the graphic screen of the state of the specific date in the 1st Embodiment of this invention, and the graphic screen of the present state. The figure which shows the example of a specific date selection screen in the 1st Embodiment of this invention. The figure which shows the example of a difference warning display screen of the specific date in the 2nd Embodiment of this invention, and the present state. The figure which shows the specific date difference location list display screen example in the 3rd Embodiment of this invention. The figure which shows the example of a difference location check exclusion apparatus registration screen in the 5th Embodiment of this invention. The block diagram which shows the function structure of the principal part in the 1st-5th embodiment of this invention.

Explanation of symbols

101 ... CPU (OIS)
111 ... CRT display device 112 ... keyboard 113 ... mouse 114 ... speaker 120 ... operator 151 ... PLC
901 ... Graphic screen display program 911 ... Current state display program 912 ... Specific date / time display program 913 ... Difference alarm processing program 914 ... Difference list display program 915 ... Difference control output program 920 ... Specific date PLC data 921 ... Specific date information 931 ... PLC data transmission program 932 ... PLC data reception program 933 ... Current PLC data 941 ... Difference exclusion storage program 942 ... Difference exclusion data

Claims (5)

  In a plant monitoring and control device that displays and displays a graphic screen showing the state of the plant on the display device, the graphic screen of the current state of the plant equipment and equipment and the graphic screen of the state of a specific date and time are simultaneously displayed A plant monitoring and control apparatus comprising a means for displaying, wherein a difference between a specific date and time of plant equipment and facilities and a current state is known.   The plant monitoring control apparatus according to claim 1, wherein a difference determination means for determining a difference between a current state of the plant equipment and facilities and a state at a specific date and time, and a warning when the difference is determined by the difference determination means And a means for displaying a display of the equipment and facilities of the plant whose difference is determined on the graphic screen in a special state.   In a plant monitoring and control device for displaying and displaying a graphic screen representing a plant state on a display device, a difference determining means for determining a difference between a current state of plant equipment and facilities and a state at a specific date and time And a means for displaying a list of differences occurring in the whole plant determined by the difference determination means on a display device, and a screen of the list display displayed by this means to a graphic screen having individual differences. A plant monitoring and control device comprising: means for controlling to expand.   In a plant monitoring and control device for displaying and displaying a graphic screen representing a plant state on a display device, a difference determining means for determining a difference between a current state of plant equipment and facilities and a state at a specific date and time And a means for controlling so that the current state of the equipment and facilities of the plant from which the difference is determined when the difference is determined by this means, is a specific date and time. Control device. The plant monitoring control device according to claim 2 or 4, further comprising a difference determination exclusion selection unit that selects equipment and equipment for excluding difference determination, wherein the difference determination unit includes a current state and a state of a specific date and time. A plant monitoring control apparatus characterized in that when the difference is determined, the difference is determined by excluding the equipment and equipment selected by the difference determination exclusion selecting means.

Images