JP2009175993A - Hmi device for monitoring controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an HMI device for a monitoring controller, allowing automatic evacuation to another area by a designated trigger, and allowing knowledge of a little future change likely to occur to allow an operator to continue operation monitoring while performing prediction. <P>SOLUTION: Data displayed on a graphic screen are recorded for a prescribed period, data for a past prescribed period before trigger occurrence and for a prescribed period on and after the trigger occurrence are stored in a storage device with the change of a previously designated failure signal or state signal as the trigger, the data at designated time are redisplayed on the graphic screen, and are compared with time series data of a flow rate, rainfall or an operation state from the past up to now from files of time series data stored in time of the trigger occurrence, a file including the most similar time series data is retrieved, and a signal state after a time set from time of the similar data of the file is redisplayed on the graphic screen. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an HMI (Human Machine Interface) device of a monitoring and control device related to operation monitoring of an infrastructure plant monitoring control system such as a water and sewage plant, a power plant, a factory, a railway operation monitoring system, and a utility monitoring system.

  The conventional HMI device for monitoring and control systems for infrastructure and plant monitoring can visually analyze plant behavior by redisplaying past data on a graphic screen in order to perform plant failure analysis. .

  The redisplay data is stored in the trend DB or the event history DB in which signal items registered in advance are stored. To redisplay the data stored in the graphic screen (hereinafter referred to as a process monitoring player), the display is redisplayed. Signals for which data for a period required for the above are defined on the graphic screen are collected from the DB and the screen is redisplayed.

  In [Patent Document 1], the video encoding unit converts the plant monitoring video into a digital code to generate monitoring video data, and the sound encoding unit converts the monitoring sound into a digital code to generate monitoring sound data. The sensor data input unit captures the sensor value that represents the plant state and creates monitoring sensor data. When an abnormality occurs in the monitoring target, it records a certain amount of data as a log, and the monitoring log playback unit records it in the past. A supervisory control support device for reproducing the accumulated log is described. In [Patent Document 2], an image obtained by imaging a monitoring target, process data input / output with respect to the monitoring target, and voice data collected from the monitoring target are cyclically stored in real time in a main memory device. When an abnormality is detected, each data stored in the main storage device is saved to the auxiliary storage device for a certain period before and after that, and each data saved in the auxiliary storage device is read to the display and the speaker, respectively. An apparatus for reproducing in synchronization is described.

JP-A-9-81233 JP-A-6-289927

  In addition to the analog signal, the graphic screen displays various information such as a failure, a status signal, a control status, and a normal status of the analog value. In addition, when failure analysis is performed with the process monitoring player function at the time of an accident, the data to be redisplayed on the screen needs to be redisplayed with the resolution before the accident as well as with the resolution in seconds. . Therefore, for failure analysis at the time of an accident, it is necessary to accumulate a large number of signal points with a resolution of a unit of seconds or a unit of several milliseconds. In this case, since the DB capacity increases, long-term data storage is possible. It becomes difficult and a bad effect that only data can be stored for a short time occurs.

  As a result, if the data in the trend DB where the data at the time of the accident is stored is not saved to another storage device at an early stage, the data at the time of failure will be deleted by overwriting, and the data at the time of failure will be redisplayed with the process monitoring player function There are cases where it is not possible.

  With the techniques described in [Patent Document 1] and [Patent Document 2], the above-described problems can be dealt with and data at the time of failure can be reproduced. However, it did not take into consideration what kind of changes would occur before the accident occurred.

  It is an object of the present invention to automatically retreat to another area with a specified trigger, know the change that will occur a little ahead, and can monitor the HMI of a monitoring control device that can continue operation monitoring while predicting by the operator. To provide an apparatus.

  Time series data necessary for re-display of the process monitoring player part is recorded for a certain period, and the recorded time series data is recorded for a certain period after the occurrence of the event by a previously registered failure occurrence or state change trigger. Is recorded as a data file for redisplay in a storage device in another area, and the data at the specified time is redisplayed on the graphic screen. Compare the time series data of the flow rate, rainfall, and operation status from to the present, search for the file containing the most similar time series data, and the signal status after the time set from the time of the similar data of that file Is redisplayed on the graphic screen.

  According to the present invention, storage of time series data necessary for re-display using a graphic screen displaying many signal items can be automatically saved to another area by a specified trigger, and the storage period is limited. From the trend DB, the data at the time of the accident can be saved without being deleted, and the change that will occur a little ahead can be understood, so that the driver can continue monitoring while predicting.

  An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a configuration diagram of an infrastructure plant monitoring control system having a process monitoring player function.

  The plant real-time data 9 is input to the supervisory control system 1 and stored in the plant database 8. The plant database 8 includes a graphic display unit 3, a trend storage processing unit 6, a trend database 4 (hereinafter referred to as trend DB 4), an event storage processing unit 7 through an event database 5 (hereinafter referred to as event DB 5), data Redisplay data files 14 are connected to each other via the storage processing unit 15.

  The graphic display unit 3 is connected to the graphic monitoring screen 2, and real-time monitoring is performed by calling up data from the plant database 8 via the graphic display unit 3 at a certain period and updating the display of the graphic monitoring screen 2.

  The trend storage process 6 and the event storage process 7 read out plant real-time data from the plant database 8 and accumulate them in the trend DB 4 and the event DB 5, and the accumulated data is used for trend graph display and event display. Since the trend DB 4 is stored in a cyclic manner, it always accumulates for a certain period and is overwritten and erased from old data.

  The trend DB 4 and the event DB 5 are connected to the trigger storage processing unit 11, and the trigger storage processing unit 11 is connected to the trigger setting screen 10 and the redisplay data file 14. Changes in failure signals and status signals are registered on the trigger setting screen 10, and the data in the trend DB 4 and event DB 5 are stored in the redisplay data file 14 when the corresponding signal changes. In the data storage process 15, data for a certain period after the trigger is generated is read from the plant database 8 and stored in the redisplay data file 14.

  The redisplay data file 14 is connected to the graphic screen 12 via the process monitoring player 13, and the process monitoring player unit 13 redisplays the data of the redisplay data file 14 on the graphic screen 12.

  By reproducing the state immediately before the accident occurred, the circumstances leading to the accident and the state of the transition after the accident can be visually reproduced, which is useful for planning accident analysis, accident prevention policies, and post-accident response policies. Can.

  FIG. 2 is a diagram illustrating an example of a display screen of the trigger setting screen 10. The trigger setting unit 22 of the trigger setting screen 10 can specify a change of a plurality of signals by combining AND, OR, or threshold determination. In the example of FIG. 2, when the alarm of the analog value PV001 is an occurrence of PH (upper limit abnormality) and the digital value ST100 is turned ON, the time series data is saved. As another method of designating a trigger, it is also possible to register all the fault signals, major faults only, middle faults and major faults only, and upper limit abnormalities in a batch in units of fault signals. By specifying failure signals in advance as triggers, a data file for redisplay can be created automatically, so you don't have to forget to save and important data when a failure occurs Can be securely stored. In addition, the saved data file for redisplay can be redisplayed by the process monitoring player unit, and the data file for redisplay once saved in the storage device is not automatically deleted.

  In addition to trigger specification, it is possible to save at the timing when the operator presses the save button 25, and it is possible to specify the time 23. When the time is specified, the automatic operation is performed when the specified time is reached. It is possible to save time series data files. As a result, the behavior of automatic operation and automatic control is analyzed and used for adjustment work of automatic control. Test content can be verified.

  In the example of FIG. 2, the data items displayed on the graphic screen 12 are recorded for one hour at intervals of one second, and when the trigger condition is satisfied, the data for one hour accumulated at that time is further increased to 10 Add and save minutes of data. The data file storage content setting unit 24 can set the time before the occurrence, the time after the occurrence, and the sampling period.

  FIG. 3 is a block diagram of an infrastructure plant monitoring control system having a process monitoring player function as another example.

  In this example, the data center 35 is connected to a monitoring device 33 via a network 34 such as the Internet, and the monitoring device 33 is connected to the Web browser 31 via a network 34 such as the Internet.

  A data server device 36 is installed in the data center 35, and real-time data of the plant is input and stored. The data server device 36 is connected to the process monitoring player unit 13, and the process monitoring player unit 13 is connected to the graphic screen 12.

  The monitoring device 33 includes a trend storage unit 11 connected to the trend DB 4, the event DB 5, the trend DB 4 and the event DB 5, a storage device 33 connected to the trigger storage processing unit 11 and provided with a reproduction data file, and a Web server 38. , An automatic voice response unit 30 is provided. The automatic voice response unit 30 is connected to a terminal 28 via a telephone line 29.

  A graphic monitoring screen 2 is displayed on the Web browser 31, and a save button 32 is provided in the screen.

  As described above, the monitoring control system shown in FIG. 3 displays the graphic screen 12 of the monitoring control apparatus on the Web browser 31 remotely via the network 34 such as the Internet, and saves it. The button 32 can be used to instruct to save time-series data from the screen. By installing the voice telephone automatic response unit 30 in the monitoring device, it is also possible to give a storage instruction from a voice telephone. In particular, in the case of a voice call, it is possible to instruct data storage at the time of failure from the destination by using mail notification and voice notification at the time of failure occurrence, and to perform failure analysis later.

  Further, the time series data stored by the trigger is transmitted to, for example, the data server device 36 of the data center 35 via a line such as the Internet, and the redisplay data file 37 is stored. The data server device 36 has a function of redisplaying the time series data by the process monitoring player unit 13 so that the situation at the time of the accident can be redisplayed on the data center 35 side.

  For example, the situation of an accident that occurred at a water treatment plant can be redisplayed on the graphic screen 12 of the government building connected by a line such as the Internet, and the progress of the process value can be graphically displayed at another place immediately after the failure occurs. It can be re-displayed on the screen, and remote failure analysis and troubleshooting can be performed at government buildings and head offices.

  A method of using the redisplay data file 34 will be described with reference to FIGS. As shown in the flowchart shown in FIG. 5, in step 45, for example, time series data of rainfall and water level from the present to one hour before is extracted from the redisplay data file 34 at a plurality of different times on the corresponding screen. In step 46, a specified item, for example, a data file including a time zone in which temporal variations from the past to the present such as the rainfall and water level, the water level and the number of pumps operated, etc. are most similar is extracted. In step 47, a time word in which the time of the portion similar to the extracted data file is set, for example, 5 minutes later, is set as the reproduction start time. In step 48, the process monitoring player unit 13 reproduces the data file at the designated time such as five minutes after the current situation.

  As shown in FIG. 4, with the two displays, the first display 41 displays the current data, and the second display 42 displays the similar time zone of the similar data file on the process monitoring player unit 13. The data is displayed again 5 minutes ahead so that changes from the present to 5 minutes ahead can be seen visually.

  As a result, by referring to the process monitoring player, a change that will occur a little ahead can be understood, so that the driver can continue to monitor driving while predicting.

It is a block diagram of the monitoring control system of an infrastructure plant provided with the process monitoring player function. It is a figure which shows the example of the display screen of a trigger setting screen. It is a block diagram of the monitoring control system of the infrastructure plant provided with the process monitoring player function which is another example. It is a figure which shows the example of a display of two displays. It is a flowchart of determination of the time position of the determination of the file containing similar data, and a redisplay.

Explanation of symbols

1 Monitoring control system 2 Graphic monitoring screen 3 Graphic display unit 4 Trend DB
5 Event DB
6 Trend storage processing section 7 Event storage processing section 8 Plant database 9 Plant real-time data 10 Trigger setting screen 11 Trigger storage processing section 12 Graphic screen 13 Process monitoring player 14 Redisplay data file 22 Trigger setting section

Claims (5)

  HMI equipment for monitoring and control equipment of infrastructure plants such as water and sewage plants, power plants, factories, railway operation monitoring, utility monitoring systems, etc., which records the data to be displayed on the graphic screen for a certain period and specifies it in advance Triggered by a change in the failure signal or status signal, the data for the past fixed period and after that for a certain period is stored in the storage device, the data at the specified time is displayed again on the graphic screen, and the trigger is generated. Compares the time-series data saved from time to time with the flow-rate, rainfall, and operating status data from the past to the present, searches for the file containing the most similar time-series data, and resembles the similar data in that file HMI device of monitoring and control device for re-displaying signal state after time set from time of day on graphic screen   The HMI device of the monitoring control device according to claim 1, wherein the trigger condition is generated by a combination of AND and OR of a plurality of signals, or threshold determination of an analog value.   2. The HMI device of the monitoring control device according to claim 1, wherein the pre-designated trigger is an operation of a button operated by an operator or a pre-designated time other than a signal change.   The HMI device of the monitoring control device according to claim 1, wherein the trigger is given remotely by an instruction from a web browser or a voice phone via the Internet. The time-series data stored by the trigger is transmitted and stored in a server equipped with a large-scale storage device of a data center by communication via an Internet line, and the stored data is displayed on the HMI device of the data center. The HMI device of the monitoring control device according to 1.

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