JP2003029826A - Plant monitor controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plant monitor controller capable of preserving the data of a plant not only when any abnormality is generated but also when equipment is operated, and comparing the data between the past two points of time. SOLUTION: Plant data are collected by a real time data server 18, and a trend data base 17 in which the plant data are preserved as time-serial data and an event history data base 16 in which the history of the event of the plant is preserved are prepared, and two time to be analyzed is selected by using the event history data base 16, and the plant data corresponding to the selected two time are acquired through the real time data server 18, and the plant state is reproduced, and graphic-displayed in parallel, and the time-serial data corresponding to the two time are acquired from the trend data base 17, and the trend graph is displayed in parallel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant supervisory control device for performing supervisory control of various plants such as a water and wastewater treatment plant on a screen.

[0002]

2. Description of the Related Art FIG. 7 is a block diagram showing a conventional plant monitoring and controlling apparatus described in JP-A-55-150009. In FIG. 7, 20 is a plant to be monitored, 30 is a multiplexer that amplifies the input from the plant 20, 31 is an analog / digital conversion device that converts an analog input signal from the multiplexer 30 into a digital signal, and 32 is a changeover switch. , 33a and 33b are data recording / reproducing devices for writing and reading data to and from the flexible disk, and 34a and 34b are flexible disks for storing the data. Reference numeral 35 is a microcomputer that performs monitoring processing, and has a storage unit 36, an arithmetic processing unit 39, and an input / output processing device 40. Reference numeral 41 is a CRT display device for displaying the state of the plant, and 42 is a keyboard for inputting to the microcomputer 35.

Next, the operation will be described. Plant 2
The abnormality detection signal from 0 is input to the input / output processing device 40 of the microcomputer 35, and the content of the abnormality is determined. The storage unit 36 of the microcomputer 35 holds a correspondence table showing plant data related to the abnormality, and the arithmetic processing unit 39 refers to this table,
The plant data related to the abnormality is determined, and the plant data to be stored in the flexible disk is specified in the multiplexer 30. The designated data is converted into digital data by the analog / digital converter 31, and the data recording / reproducing devices 33a, 33 are transmitted through the changeover switch 32.
It is input to b and is stored in either of the flexible disks 34a and 34b. When playing back the saved data,
The type of the abnormal signal, the search range, etc. are input to the microcomputer 35 from the keyboard 42. Based on the search information, the arithmetic processing unit 39 of the microcomputer 35 checks the list of the data recorded and stored in the storage unit 36, and searches for the corresponding data. The retrieved data is reproduced from the flexible disk 34a or 34b, and displayed on the CRT display device 41 as a trend graph in an overlapping manner with the data being recorded. In this conventional example, the trend graph data is saved according to the type of abnormality, and the trend graph of similar cases in the past can be played back and displayed on top of the current data. Confirmation,
Measures can be taken promptly.

[0004]

In the prior art, since data is stored only when an abnormality occurs, it is impossible to compare the state when the abnormality occurs and the normal state. Also, although it is possible to compare the plant status at the time of the past abnormality and the current status, it is not possible to compare the past states, so it is possible to compare the plant status at the past normal time and the status at the time of abnormality It was not sufficient to analyze the cause after the occurrence of the abnormality and to examine the fundamental countermeasures such as performing the above and comparing the past two types of abnormal states.

The present invention has been made to solve the above problems, and saves plant data not only when an abnormality occurs but also when an equipment is operated, and , It is an object of the present invention to obtain a plant monitoring and control apparatus that enables detailed analysis and examination of plant abnormalities by making it possible to compare data between the past two time points.

[0006]

In a plant monitoring and controlling apparatus according to the present invention, a plant monitoring and controlling apparatus for monitoring and controlling a plant, a real-time data server for collecting plant data from the plant, and an event based on the plant data. Event history database storing the history of the event, time selecting means for selecting a plurality of times associated with the event using the event history database, and a plant for reproducing the plant state at a plurality of times selected by the time selecting means It is provided with a graphic screen display unit for acquiring data via a real-time data server, reproducing the plant states at a plurality of times, and displaying the graphic data in parallel. In addition, in a plant monitoring control device that monitors and controls the plant, a real-time data server that collects plant data from the plant, a trend database that stores the plant data as time series data, and an event history based on the plant data are stored. An event history database, time selection means for selecting a plurality of times associated with an event using the event history database, and time series data corresponding to a plurality of times selected by the time selection means are acquired from the trend database. A trend graph screen display unit for reproducing trend graphs at a plurality of times and displaying them in parallel is provided.

Further, in a plant monitoring control device for monitoring and controlling a plant, a real-time data server that collects plant data from the plant, a trend database that stores the plant data as time series data, and an event history based on the plant data. The event history database that stores the, the time selection means for selecting a plurality of times related to the event using the event history database, and the plant data for reproducing the plant state at the plurality of times selected by the time selection means. A graphic screen display unit that acquires via a real-time data server, reproduces plant states at multiple times and displays them in parallel in parallel, and time-series data corresponding to multiple times selected by the time selection means from the trend database. Acquisition Are those with a trend graph screen display unit for displaying in parallel reproduces the trend graph of a plurality of times. Further, one of the graphic display and the trend graph is selected and displayed.

The graphic screen display section displays graphic displays corresponding to a plurality of times on a plurality of window screens, respectively. Further, the graphic screen display section displays graphic displays corresponding to a plurality of times on a plurality of display devices, respectively.

Furthermore, the graphic screen display section is
Graphic displays corresponding to a plurality of times are respectively displayed on a plurality of screens of a multi-large screen device. Further, the trend graphs corresponding to a plurality of times are displayed in a superimposed manner on the same screen.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. Hereinafter, the first embodiment of the present invention will be described with reference to FIG. 1 is a configuration diagram showing a plant monitoring control apparatus according to Embodiment 1 of the present invention. In FIG. 1, reference numeral 1 is a plant monitoring control device having an input / output device and a CPU for monitoring and controlling the plant, and 2 is a plant device monitored and controlled by the plant monitoring control device 1. Reference numeral 3 is a CRT device for displaying the plant monitoring control device 1, 4 is a keyboard for inputting to the plant monitoring control device 1, 5 is a touch panel, and 6 is a mouse. The plant monitoring control device 1 is configured as follows. Reference numeral 11 is a graphic screen display unit that graphically displays the plant data representing the plant status on the CRT device 3, 12 is a trend graph screen display unit that displays the plant status and measured values in a time-series trend graph, 13 Is an integrated data server that mediates real-time data, time-series data, and event history data between each server and the graphic screen display unit 11 and the trend graph screen display unit 12, and includes time selection means. 14 is an event history server that manages event history data such as plant abnormality, failure, and operation history, 15 is a trend server that manages plant data as time series data, and 16 is an event such as plant abnormality, failure, and operation history An event history database that stores associated event history data, 17 is a trend database that stores plant data as time-series data, and 18 is plant data that is collected in real time.
It is a real-time data server that manages.

FIG. 2 is a flow chart showing the operation of the plant monitoring control apparatus according to the first embodiment of the present invention. Figure 3
FIG. 4 is a diagram showing a method of reproducing a graphic screen of the plant monitoring control apparatus according to the first embodiment of the present invention. In addition to the base screen of the current plant status, the window displays the plant status at two times. FIG. 4 is a diagram showing a trend graph reproducing method of the plant monitoring control apparatus according to the first embodiment of the present invention. 3 and 4, 1 and 3 are the same as those in FIG.

Next, the operation will be described with reference to FIG. The operator searches for data to be reproduced from the generated alarm information and events such as operation history (step S1). The integrated data server 13 searches the event information of the event history server 14 for a list of times at which the corresponding events have occurred (step S2). The operator should be analyzed from the searched list by the time selection means 2
A time is selected, a reproduction method is selected from a graphic screen or a trend graph, and reproduction is executed for two times (step S3). It is assumed that the signals displayed on the graphic screen and the trend graph to be reproduced are determined in advance in association with the event information.

During reproduction on the graphic screen, the respective reproduction times of the graphic screen are displayed in a window as shown in FIG. When displaying on a graphic screen, the graphic screen display unit 11 displays the specified screen in a window (step S51), and reproduces the plant data at the 2nd time to be displayed on the integrated data server 1
3 is requested (step S61). Integrated data server 1
3 requests the data of the time from the real-time data server 18 (step S71). Real-time server 1
8 acquires necessary plant data from the event history database 16 and the trend database 17,
It is supplied to the integrated data server 13. Reproduction of data from the real-time data server 18 is performed by the integrated data server 1
3 is sent to the graphic screen display unit 11 and displayed as numerical values or symbols in each window (step S8).
1).

When displaying on the trend screen, the trend graph screen display unit 12 displays the specified trend graph screen (step S52) and requests the integrated data server 13 to reproduce the plant data at the two time points to be displayed ( Step S62). The integrated data server 13 requests the trend server 15 for the data at the time (step S7).
2). The reproduction of the time-series data from the trend server 15 is sent to the trend graph screen display unit 12 via the integrated data server 13 and displayed as a graph (step S8).
1). During playback on the trend graph, the graphs at the respective times are displayed superimposed on the same graph screen. The graphs for each reproduction time are distinguished by colors, line types, etc. as shown in FIG.

According to the first embodiment, plant data at two times associated with an event such as an alarm or an operation history can be simultaneously reproduced in the form of a graphic screen or a trend graph. And the operation at the time of abnormality can be easily compared. Also,
Since it is possible to reproduce a plurality of data at the same abnormal time at the same time, it is possible to make a detailed examination by comparing whether or not two abnormalities are caused by the same cause.

Embodiment 2. Next, a second embodiment will be described. In the second embodiment, two CRT devices are used as a graphic screen reproduction format. FIG. 5 is a diagram showing a method for reproducing a graphic screen of the plant monitoring control apparatus according to the second embodiment of the present invention. In FIG. 5, 1 is the same as that in FIG. 3a,
3b is a CRT device. In FIG. 5, two CRT devices 3a and 3b are connected to the plant monitoring control device 1. The reproduction of the graphic screen is individually performed by each of the CRT devices 3a and 3b. For playback procedure,
Each CRT device 3a, 3b, not a window
The same as Embodiment 1 except that the graphic screen is displayed in.

Since the normal window is smaller than the graphic screen of a size suitable for the CRT device, only a part of the graphic screen can be seen.
According to this, since the reproduction status can be viewed as it is as the image of the normal monitoring screen without using the graphic screen as a window, the status can be grasped more accurately.

Embodiment 3. Next, a third embodiment will be described. In the third embodiment, a multi-large screen is used as the reproduction format of the graphic screen. The multi-large screen is a display device having a size of about 50 inches or more and seamlessly connecting a plurality of display surfaces, and has a high resolution, so that a large amount of information can be displayed at one time. FIG. 6 is a diagram showing a method for reproducing a graphic screen of the plant monitoring control apparatus according to the third embodiment of the present invention. In FIG. 6, 1 is the same as that in FIG. 7 is a multi-large screen device. In FIG.
The reproduction of the graphic screen is performed on the multi-large screen device 7. The procedure of reproduction is the same as that of the first embodiment except that the graphic screen is displayed on the multi-large screen.

According to the third embodiment, since the reproduction of the graphic screen can be performed by the multi-large screen device, it is possible for a large number of people to confirm the reproduction status at the same time. As a result, it is possible to make a more accurate judgment as to the status of failure.

[0020]

Since the present invention is constructed as described above, it has the following effects. In a plant monitoring controller that monitors and controls a plant, a real-time data server that collects plant data from the plant, an event history database that stores the history of events based on the plant data, and event related databases using this event history database The time selection means for selecting a plurality of times selected and the plant data for reproducing the plant status at the plurality of times selected by the time selection means are acquired via the real-time data server, and the plant status at a plurality of times is reproduced. Since the graphic screen display unit for performing graphic display in parallel is provided, the graphic display at a plurality of times can be performed in parallel, and the abnormality of the plant can be analyzed using this.

Further, in a plant monitoring control device for monitoring and controlling a plant, a real-time data server that collects plant data from the plant, a trend database that stores the plant data as time series data, and an event history based on the plant data. The event history database that stores the event history, the time selection means that selects a plurality of times related to the event using the event history database, and the time-series data corresponding to the plurality of times selected by the time selection means to the trend database. It is possible to display trend graphs at multiple times in parallel because it has a trend graph screen display section that reproduces trend graphs at multiple times and displays them in parallel. Can be analyzed.

Further, in a plant monitoring control device for monitoring and controlling a plant, a real-time data server that collects plant data from the plant, a trend database that stores the plant data as time series data, and an event history based on the plant data. The event history database that stores the, the time selection means for selecting a plurality of times related to the event using the event history database, and the plant data for reproducing the plant state at the plurality of times selected by the time selection means. A graphic screen display unit that acquires via a real-time data server, reproduces plant states at multiple times and displays them in parallel in parallel, and time-series data corresponding to multiple times selected by the time selection means from the trend database. Acquisition Since the trend graph screen display unit that reproduces trend graphs at multiple times and displays them in parallel is provided, it is possible to display the graphic display and trend graph at multiple times in parallel, and using this, an abnormality in the plant can be displayed. Can be analyzed.

Furthermore, since either the graphic display or the trend graph is selected and displayed, either display can be selected. Further, since the graphic screen display unit displays graphic displays corresponding to a plurality of times on a plurality of window screens, respectively, the graphic display can be performed in parallel by one display device.

Further, since the graphic screen display unit displays the graphic displays corresponding to a plurality of times on a plurality of display devices, respectively, the plurality of display devices can display the size of the display device. Furthermore, since the graphic screen display unit displays the graphic displays corresponding to a plurality of times on a plurality of screens of the multi-large screen device, the graphic screen display unit can be viewed by many people at the same time.

The trend graphs corresponding to a plurality of times are displayed on the same screen in a superimposed manner, so that the graphs can be easily compared.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a plant monitoring control apparatus according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing an operation of the plant monitoring control apparatus according to the first embodiment of the present invention.

FIG. 3 is a diagram showing a method of reproducing a graphic screen of the plant monitoring control apparatus according to the first embodiment of the present invention.

FIG. 4 is a diagram showing a trend graph reproducing method of the plant monitoring control apparatus according to the first embodiment of the present invention.

FIG. 5 is a diagram showing a method of reproducing a graphic screen of the plant monitoring control apparatus according to the second embodiment of the present invention.

FIG. 6 is a diagram showing a method of reproducing a graphic screen of a plant monitoring control apparatus according to a third embodiment of the present invention.

FIG. 7 is a configuration diagram showing a conventional monitoring control device.

[Explanation of symbols]

1 plant monitoring control device, 2 plant equipment, 3 C
RT device, 4 keyboard, 5 touch panel, 6 mouse, 7 multi-screen device, 11 graphic screen display unit, 12 trend graph screen display unit, 13 integrated data server, 14 event history server, 15 trend server, 16 event history database, 17
Trend database, 18 real-time data server.

Claims (8)

[Claims] 1. A plant monitoring control apparatus for monitoring and controlling a plant, comprising: a real-time data server for collecting plant data from the plant; an event history database storing event history based on the plant data; Time selecting means for selecting a plurality of times associated with an event using, plant data for reproducing the plant state at a plurality of times selected by the time selecting means is acquired through the real-time data server, and the plurality of times are acquired. A plant monitoring and control apparatus comprising a graphic screen display unit for reproducing the plant status of the above and displaying the graphic in parallel. 2. A plant monitoring control apparatus for monitoring and controlling a plant, a real-time data server for collecting plant data from the plant, a trend database for storing the plant data as time series data, and an event based on the plant data. An event history database storing history, time selecting means for selecting a plurality of times related to an event using this event history database, and time series data corresponding to a plurality of times selected by the time selecting means from a trend database A plant monitoring control apparatus comprising: a trend graph screen display unit that acquires and reproduces the trend graphs at a plurality of times and displays them in parallel. 3. A plant monitoring control device for monitoring and controlling a plant, a real-time data server for collecting plant data from the plant, a trend database for storing the plant data as time series data, and an event based on the plant data. The event history database storing the history, time selecting means for selecting a plurality of times associated with an event using the event history database, and plant data for reproducing the plant state at a plurality of times selected by the time selecting means are described above. A graphic screen display unit that acquires via a real-time data server, reproduces the plant states at the plurality of times and graphically displays them in parallel, and the time-series data corresponding to the plurality of times selected by the time selecting means, the trend database. And a trend graph screen display unit that reproduces the trend graphs at a plurality of times and displays them in parallel. 4. The plant monitoring control apparatus according to claim 3, wherein one of the graphic display and the trend graph is selected and displayed. 5. The plant monitoring control apparatus according to claim 1, wherein the graphic screen display unit displays graphic displays corresponding to a plurality of times on a plurality of window screens, respectively. . 6. The plant monitoring controller according to claim 1, 3, or 4, wherein the graphic screen display section displays graphic displays corresponding to a plurality of times on a plurality of display devices, respectively. . 7. The graphic screen display unit displays graphic displays corresponding to a plurality of times on a plurality of screens of a multi-large screen device, respectively. Plant monitoring and control equipment. 8. The plant monitoring control apparatus according to claim 2, wherein the trend graphs corresponding to a plurality of times are displayed in a superimposed manner on the same screen.