JP2000224669A - Plant monitoring equipment - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To easily and easily store and manage measurement point data related to an alarm. SOLUTION: The same causal relationship group registering means 2 to 5 for registering measurement points having a correlation with an alarm as the same causal relationship group, and a collection for collecting respective measurement point data and storing them in time series according to the same causal relationship group. Data storage means 6, 4, 5 and an alarm group determining means for determining which of the same causal relation groups the alarm belongs to from the registered same causal relation groups when an alarm relating to the collected measurement point data is received. 7 is a plant monitoring apparatus provided with data storage means 8 and 9 for reading and storing each measured point data of the determined same causal relationship group from the collected data storage means before and after an alarm is generated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant monitoring device for petroleum, chemical, steel, electric power, papermaking, and the like, and more particularly to a plant monitoring device devised to acquire data when an alarm occurs.

[0002]

2. Description of the Related Art In general, a plant monitoring apparatus has a data display system for displaying trend data, which is a process signal from a certain point in the past to the present, and a trigger generated in response to a certain state change such as a pump abnormality or a valve abnormality. A high-speed data storage system for receiving signals and storing the process signals before and after the signal at a high speed.

Here, the data display system registers in advance a process signal name to be displayed. The registered data is hereinafter referred to as historical registered data, and the displayed trend data is referred to as historical data.

On the other hand, the high-speed data storage system needs to store the process signal before and after the trigger signal is received. The prerequisite is to register the name of the process signal to be stored and the name of the trigger signal related to the occurrence of the alarm. However, these registered data are hereafter referred to as high-speed trend data,
The data stored at that time is called high-speed trend data.

[0005] Such a conventional plant monitoring apparatus is specifically configured as shown in FIG.

That is, the data display system stores the name of the process signal to be displayed among the process signals at each measurement point from the input device 51 in the historical registration data memory 52 in advance.
Register with. The historical data storage unit 53 reads the historical registration data registered in the memory 52 and sequentially registers the data in the historical data memory 54.

In this state, the data collecting means 55
Each measurement point data (process signal and other on / off signals of each device) is sequentially acquired and output at predetermined intervals. The historical data storage means 53 fetches the corresponding process signal according to the signal name and stores it in the historical data memory 54 in time series. The trend screen display control means 56 reads out the historical data stored in the historical data memory 54 and displays it on the display unit 57.

On the other hand, the data high-speed storage system registers in advance a process signal name and a trigger signal name to be stored from the input device 51 in the high-speed trend data memory 61 and the trigger signal memory 62, respectively.

In this state, the data collecting means 55
, Sequentially captures and outputs data of each measurement point, that is, a process signal, as well as on / off signals such as operation / stop of a pump and opening / closing of a valve at predetermined intervals. Here, the high-speed trend data storage unit 63 stores the process signal input according to the registered high-speed trend data in the memory 64. In the memory 64, at least process signals and the like corresponding to at least a predetermined period in the past are stored in time series.

At this time, when the trigger signal memory 62 receives an alarm based on the process signal and the ON / OFF signal from the data collection means 55, the trigger signal memory 62, if it belongs to a registered trigger signal name, To the high-speed trend data extraction and storage means 65. Upon receiving the trigger signal name, the high-speed trend data extraction and storage means 65 fetches the trend data for a certain period before and after the input from the memory 64 and the high-speed trend data storage means 63 and stores it as a data storage data base 66. To save.

[0011]

By the way, in the above plant monitoring apparatus, when displaying the historical data at the time of generation of the alarm signal, each time the alarm is generated, the operator is required to display various pieces of historical data related to the alarm. Is displayed on the display unit 57, a trend screen is searched for by trial and error, and information relating to the alarm occurrence must be collected by hard copy or the like.

[0012] Further, regarding the collection of high-speed trend data,
By registering the trigger signal name related to the alarm occurrence and the process signal name that you want to save when the alarm occurs, you can save the necessary data when the alarm occurs.To do so, set the trigger signal name and the process signal name that you want to save, All the measurement points to be stored had to be registered, which required a very complicated data input operation.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a plant monitoring apparatus capable of easily and easily storing measurement point data related to occurrence of an alarm.

[0014]

In order to solve the above-mentioned problems, the present invention provides an identical causal relation group registering means for registering in advance a measuring point having a correlation with each alarm as an identical causal relation group; A collection data storage unit that collects data and stores the data in a time series according to the same causal relationship group; and, when receiving an alarm related to the collected measurement point data, an alarm from the same causal relationship group registered by the registration unit. An alarm group judging unit for judging to which of the same causal relationship groups belongs, and reading out each measurement point data of the same causal relationship group judged by the alarm group judging unit from the collected data storage unit before and after the occurrence of the alarm. Plant provided with data storage means for storing It is a visual device.

According to the present invention, by taking the above measures, measurement points having a correlation with each alarm are registered in advance as the same causal relation group, and each measurement point data is chronologically registered according to the same causal relation group. If the alarm is generated, it is possible to determine which group the measurement point of the alarm is in when an alarm is generated, and according to the determination, the measurement point data belonging to the group can be stored before and after the alarm is generated. Without having to search for measurement point data related to the alarm cause, the data related to the alarm can be appropriately stored and managed, which is very effective even when investigating the cause of the alarm.

Further, another invention is a method of determining and registering the same causal relationship group, wherein when an alarm is generated based on data collected from each measurement point, an alarm generated within a predetermined judgment time from the occurrence of the alarm is determined. It is to make a measurement point into the same causal relationship group.

As described above, if the same causal relationship group is used as the determination means, a large number of the same causal relationship groups are automatically obtained from the collected measurement point data without the operator examining the measurement points having a correlation with each alarm. Can be determined.

Still another aspect of the present invention is to provide a method for determining and registering the same causal relationship category as the same causal relationship category, by determining and registering mutually related signal registration categories, for example, measurement points belonging to required equipment units. The same causal relationship category can be easily determined and registered.

Further, another aspect of the present invention is that, as the same causal relationship category determination and registration means, the measurement points existing on the same graphic screen are determined and registered as the same causal relationship group. The same causal relationship category can be determined and registered.

[0020]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a plant monitoring apparatus according to the present invention.

In FIG. 1, reference numeral 1 denotes an input device such as a keyboard and a pointing device. Alarm signal correlation data correlated with each alarm is set in the alarm signal correlation data memory 2 from the input device 1 in advance.

Here, the reason for setting the alarm signal correlation data in advance will be described.

With respect to the control of the boiler and the like shown in FIG. 2, the water supply is performed by operating the water supply valve 11 so that the drum water level is constant.
After this operation, it is supplied to the drum 12. The hot water that has entered the drum 12 descends to the downcomer 13, receives heat from the combustion of the burner 14, evaporates in the evaporator 15, and is sent to the drum 12 again. Then, the steam discharged from the drum 12 is sent to a turbine (not shown) or the like through a steam valve 16. At this time, it is necessary that the temperature and pressure in the drum meet the specifications of the turbine, and there is a correlation between the operation of the water supply valve 11 and the water level of the drum 12 and the amount of steam.

Accordingly, alarm correlation data having a correlation with each alarm as shown in FIG. 3 is set in the memory 2 with respect to the alarm generation of the measurement point data (process signal and other ON / OFF signals of each device).

Reference numeral 3 denotes an identical causal group selecting means, which selects identical causal group data from the alarm signal correlation data memory 2 based on a predetermined identical causal group signal selecting program. The data is registered in the grouping memory 5 via the data storage unit 4.

In this state, when the data collection means 6 captures and outputs the process signal and the device on / off signal as each measurement point data at predetermined intervals, the same causal relationship group data storage means 4 collects the data. With respect to the process signal and the device ON / OFF signal of each measurement point input from the means 6, the grouping memory 5 is registered according to the same causal relationship group registered.
Are sequentially stored in time series.

This grouping memory 5 stores measurement point data which is divided into areas for the same causal relationship groups as shown in FIG. 3 and which has a causal relationship for each group, regardless of the type of storage medium. The area is divided.

7 is an alarm group judging means,
When an alarm signal relating to the measurement point data is received from the data collection means 6, it is determined which of the plurality of same cause-effect groups in the grouping memory 5 belongs to the same cause-effect group. To the group data extraction and storage means 8.

When the group data extracting and storing means 8 receives the judgment result from the alarm group judging means 7, in addition to the measured point data for a predetermined period before the occurrence of the alarm, Measurement point data for a predetermined period after the occurrence is also received from the memory 5 or the group data storage means 4 and sequentially stored in the data storage database 9.

In the display system 10, the display control unit reads data stored in the data storage database 9 and displays the data on the display unit in accordance with an instruction from the input device 1.

Therefore, according to the above configuration, the same causal group selecting means 3 selects the same causal group from the alarm signal correlation data inputted in advance.

In this state, when the data collection means 6 collects the process data of each measurement point and other on / off signals of each device, the same causality group data storage means 4 makes the signals belonging to the same causality group selected. If so, the data of the group is sequentially stored in the grouping memory 5 in time series.

Here, when an alarm signal relating to a process signal or an on / off signal is generated from the data collection means 6,
The alarm group judging means 7 judges to which of the already registered same causal relation groups the alarm belongs, and if it belongs to the group, sends the group name data belonging to the group to the group data extracting and storing means 8. .

Upon receipt of the group name data, the group data extracting and storing means 8 reads out data for a predetermined period before and after the occurrence of the alarm from the grouping memory 5, or reads data for a predetermined period before the occurrence of the alarm from the grouping memory 5. The data is read out, and the data for a predetermined period after the occurrence of the alarm is directly fetched from the same causal relationship group data storage means 4 and stored in the data storage database 9.

Therefore, according to the above-described embodiment, at the time of occurrence of an alarm, the measurement point data is stored for each of the same causal relationship groups, so that the data for analysis at the time of occurrence of the alarm can be appropriately managed. Thus, the operator does not need to search for the relevant process signal by trial and error while displaying the process signal at each measurement point every time an alarm occurs. This means that even when the cause of the alarm occurrence is to be checked later, the data stored in the data storage database 9 only needs to be output from the display unit or other output devices, which greatly reduces the labor required for checking the cause of the alarm. To contribute.

FIG. 4 is a block diagram showing another embodiment of the plant monitoring apparatus according to the present invention. In this figure, the same parts as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof will be omitted.

In this plant monitoring apparatus, the alarm signal correlation data memory 2 is removed from the configuration of FIG. 1, and the data is collected by the data collection means 6 based on the group alarm selection judgment time set from the input device 1 instead. After receiving the process alarm signal, the same causal relationship group alarm selecting means 21 for selecting the measurement point of the alarm generated within the determination time as the same causal relationship group, and the same selected by the selecting means 21 A group alarm adoption determining means 22 for displaying the measurement point related data of the causal relationship group on the display unit and adopting the same causal relationship group by correcting the same according to the operator's correction instruction data is provided. Is sent to the same causal relationship group selecting means 3 shown in FIG. There, the others are the same as that of FIG.

Next, the operation of the above apparatus will be described.

This process monitoring device first creates an identical causal relationship group.

The same causal relation group is created by setting a group alarm selecting judgment time from the input device 1 to the same causal relation group alarm selecting means 21 at the start of operation after installation of the apparatus.

In this state, the data collecting means 6 collects the process signal of each measurement point and the ON / OFF signal of the device. At this time, when the process signal exceeds the upper and lower limit values or when the pump or the valve is abnormal, the process alarm is generated. When the signal is generated, the same causal relationship group alarm selecting means 21 determines the measurement point of the process alarm that occurred within the set determination time after the first alarm is generated to be the same causal relationship group, and determines whether to adopt the same causal relationship group alarm. To the means 22.

Here, the same causal relationship group alarm adoption judging means 22 displays the measurement points or the measurement point data of the same causal relationship group on the display unit, and asks for the operator's judgment. The operator observes the measurement points and the like related to the same causal relationship group, and determines whether or not to adopt a correction instruction or the like as necessary.

If there is an instruction for adoption, the measurement points of the adopted group are sent to the same causal relation group selecting means 3.

The following processing is the same as in FIG.

Therefore, by executing the above-described processing, it becomes possible to construct a large number of the same causal relationship groups as the period elapses.

Therefore, according to the above-described embodiment, by providing the same causality group alarm selecting means 21 and the same causality group alarm adoption judging means 22, the measurement points collected by the data collection means 6 are provided. The measurement points of the same causal relationship group can be automatically registered from the data, and a large number of the same causal relationship groups can be created without complicated data input work as in the related art.

FIG. 5 is a block diagram showing another embodiment of the plant monitoring apparatus according to the present invention. In this figure, the same parts as those in FIGS. 1 and 4 are denoted by the same reference numerals, and detailed description thereof will be omitted.

This embodiment is an example in which devices or regions installed in various parts of a plant are defined as one section, and measurement points in each section are defined as the same causal relationship group. For example, the first boiler, the first turbine, the second boiler, the second turbine,... Are each defined as one section, and process signals such as a flow rate, a pressure, and a temperature related to the first boiler are included. And the device on / off signal are signals of the same causal relationship group.

More specifically, a device category relation data memory 31 that previously stores, for example, category relationship data for each device that is input from the input device 1, and an identical causal relationship based on the category relationship data of the device category relationship data memory 31. The same causal relationship category selecting means 32 for selecting a category and the alarm category determining means 33 for determining an alarm category based on the same causal relationship category are provided, and the other configuration is the same as that of FIGS.

According to the device having such a configuration, required division relation data is input in advance from the input device 1 and stored in the division relation data memory 31. The same causal relationship category selecting means 32 selects data of the same causal relationship category from the category relationship data in the memory 31 and registers the data in the grouping memory 5 via the same causal relationship group data storage means 4.

The subsequent processing is the same as in FIGS. 1 and 4, and a description thereof will be omitted here.

Therefore, according to the above-described embodiment, if a device or area at a required location is divided in advance and division relation data related to this division is set, measurement points belonging to the same causal relation group are constructed. Yes, when an alarm occurs, it is possible to determine which alarm category from the same causal relationship group that has been established, and save it in the process signal or device ON / OFF signal of the measurement point belonging to the group for a required period before and after the alarm occurrence, and later This is useful for checking the cause of an alarm.

FIG. 6 is a block diagram showing still another embodiment of the plant monitoring apparatus according to the present invention. In addition,
In this figure, the same parts as those in FIGS. 1 and 4 are denoted by the same reference numerals, and detailed description thereof will be omitted.

This embodiment is an example in which the plant monitoring apparatus has a large number of monitoring process instrumentation screens (graphic screens), but the measurement points belonging to the process instrumentation screens are set as the same causal relationship group. is there.

Specifically, a process instrumentation screen data memory 41 is provided, and process instrumentation screen data such as measurement points existing on each process instrumentation screen in advance from the input device 1 is stored in the process instrumentation screen data memory 41. Set. Here, the same causal relationship group selecting means 3 selects the same causal relationship group from the process instrumentation screen data set in the process instrumentation screen data memory 41 according to the same causal relationship group selection program, and stores the same grouping memory as described above. Register to 5.

The subsequent processing is the same as in FIGS. 1 and 4, and a description thereof will be omitted here.

Therefore, according to the above-described embodiment, since the measurement points and the like existing on the process instrumentation screen are set as the same causal relation group, necessary measurement point data is obtained for each monitoring screen when an alarm occurs. The monitoring screen is displayed on the display unit even when the cause of the alarm is analyzed, and the state of the plant can be checked while changing the measurement point data from the past to after the occurrence of the alarm.

[0059]

As described above, according to the present invention, measurement points that are correlated with an alarm are set as the same causal relationship group, and the collected data of these measurement points are stored according to the group. Since the collected data is saved, the measurement point data related to the alarm can be easily and easily saved and managed, accurate information can be obtained more quickly when an abnormality occurs, and it can be effectively used for subsequent status judgment. In addition, it assists in judgment and operation at the time of abnormality, and can be linked to the safety of the plant.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a plant monitoring apparatus according to the present invention.

FIG. 2 is a conceptual diagram of a plant for explaining an alarm correlation.

FIG. 3 is a diagram illustrating alarm correlation data.

FIG. 4 is a block diagram showing another embodiment of the plant monitoring apparatus according to the present invention.

FIG. 5 is a block diagram showing still another embodiment of the plant monitoring apparatus according to the present invention.

FIG. 6 is a block diagram showing still another embodiment of the plant monitoring apparatus according to the present invention.

FIG. 7 is a block diagram of a conventional plant monitoring device.

[Explanation of symbols]

 2 ... Alarm signal correlation data memory 3 ... Same causality group selection means 4 ... Same causality group data storage means 5 ... Grouping memory 6 ... Data collection means 7 ... Alarm group determination means 8 ... Group data extraction and storage means 9 ... Data storage database 21 ... Group alarm player means 22 ... Group alarm adoption selection means 31 ... Segment relation data memory 32 ... Same causal relation division selection means 33 ... Alarm division judgment means 41 ... Process instrumentation screen data memory

Claims (4)

[Claims] 1. An identical causal relationship group registering means for registering measurement points having a correlation with each alarm in advance as an identical causal relationship group, and collecting respective measurement point data and storing them in time series according to the identical causal relationship group. A collected data storage unit, and an alarm group determination for determining which of the same causal relationship groups the alarm belongs to from the same causal relationship group registered by the registering unit when an alarm relating to the collected measurement point data is received. And a data storage means for reading and storing each measurement point data of the same causal relationship group determined by the alarm group determination means from the collected data storage means before and after the occurrence of the alarm. apparatus. 2. A determination time setting means for setting a determination time for selecting a group alarm, and when an alarm is generated based on data collected from each measurement point, measurement of an alarm generated within the determination time after the occurrence of the alarm. The same causal relationship group registering means for registering points as the same causal relationship group; collected data storage means for storing measurement point data collected from each measurement point in time series according to the same causal relationship group; An alarm group judging unit for judging to which of the same causal relationship groups the alarm belongs from the same causal relationship group registered by the registering unit when an alarm relating to the measurement point data is received; Of the same causality group Plant monitoring apparatus characterized by comprising a data storage means for storing read from the collected data storage means over a longitudinal alarm point data. 3. An identical causal relationship group registering means for registering measurement points belonging to mutually linked signal registration sections as an identical causal relationship group, and storing measurement point data collected from each measuring point according to the identical causal relationship group. A collection data storage unit for sequentially storing, and an alarm for determining which category the alarm belongs to from the same causal relationship group registered by the registration unit when an alarm is received for the collected measurement point data. A plant monitoring apparatus comprising: a classification judging unit; and a data storage unit that reads and stores each measurement point data of the classification determined by the alarm classification judging unit from the collected data storage unit before and after an alarm occurs. . 4. An identical causal relationship group registering means for registering measuring points existing on the same graphic screen as an identical causal relationship group, and measuring point data collected from each measuring point in chronological order according to the identical causal relationship group. And an alarm group determining unit that determines which group the alarm belongs to from the same causal relationship group registered by the registering unit when an alarm relating to the collected measurement point data is received. And a data storage means for reading and storing each measurement point data of the group determined by the alarm group determination means from the collected data storage means before and after the occurrence of the alarm.