JP3670471B2 - Alarm device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an alarm device that notifies an alarm occurrence of a power plant or the like.
[0002]
[Prior art]
Generally, when a plant alarm or device abnormality occurs in a plant such as a power plant, this is detected depending on whether or not the process data measured in each part of the plant has deviated from a predetermined alarm set value, and an alarm window is displayed. The operator is notified of the alarm occurrence, the generating device, the alarm content, etc. by lighting and displaying on the display device.
[0003]
Such alarm processing is performed by a computer, but in a plant monitoring control system such as a power plant, whether or not the process data has deviated from the alarm set value by a control device for controlling the plant or a computer for monitoring and controlling them. Judgment is carried out.
[0004]
In recent years, the number of alarm points monitored by a computer has been increasing in order to centrally monitor alarms by a computer. For this reason, the number of alarm points collected in the alarm window is also increasing.
[0005]
On the other hand, attempts have been made to reduce the number of windows by consolidating alarm windows, and further, an alarm window-less system without this alarm window has been developed. For this reason, the importance which monitors an alarm with a display apparatus is increasing.
[0006]
The alarm screen displayed on the display device is saved as a hard copy as necessary. FIG. 62 shows a conventional hard copy output control system. The display device 1 displays screen data from the screen data output processing means 2, and the operator sends a hard copy request for the displayed screen to the input device 3. Input by operation. The input hard copy request is notified to the screen data output processing means 2 through the hard copy request processing means 4, and the screen data output processing means 2 outputs the screen data displayed on the display device 1 to the hard copy screen data output means. Output to 5. The hard copy screen data output means 5 performs hard copy output processing on the screen data from the screen data output processing means 2 and outputs it to a hard copy output device 6 such as a printer. As a result, the display screen requested by the operator to make a hard copy is output from the hard copy output device 6 as a hard copy.
[0007]
[Problems to be solved by the invention]
However, in the conventional alarm device, if the computer that performs alarm processing stops, alarm information cannot be output, and the range of alarm monitoring by the computer and the number of alarm points tend to increase. Then there is a problem that alarm backup is indispensable.
[0008]
Further, in the alarm windowless system, there is a problem that it is impossible to determine what type of alarm message is generated for each facility due to the absence of the alarm window.
[0009]
Further, since the number of alarm points to be monitored by the computer increases, there is a problem that when an alarm occurs, the distinction between an important alarm and a minor alarm cannot be determined from the alarm screen of the display device.
[0010]
Further, in an alarm device that performs alarm determination at two or more locations of the control device, this alarm generation timing deviation occurs. When analyzing the cause of alarm generation, there is a problem that it may not be possible to determine what is the source of the alarm due to this deviation.
[0011]
In addition, it is ideal that the alarm information of the plant does not output more alarms than necessary to the operator. However, when the control device for controlling the plant is regularly inspected, the alarm that is understood in advance by turning off the device power supply or adjusting the device. Will be issued.
[0012]
There is a problem that the operator who operates the plant needs to judge each time whether the alarm is output by the inspection of the control device or the original plant alarm every time an alarm is output.
[0013]
Furthermore, in the conventional hard copy output control system, the screen requested for hard copy is sequentially output from the hard copy device. In this case, the screen data requested for hard copy is output as paper, and the screen data storage medium is paper. It becomes only. When the storage medium is paper, there is a problem that it is very difficult to store screen data due to deterioration due to fading or the like.
[0014]
The present invention has been made in response to the above-mentioned problems, and in order to make the computers that perform alarm processing redundant, when a computer with a high priority is stopped, the computers that perform the alarm processing are sequentially stopped until all computers stop. An object of the present invention is to provide an alarm device that backs up alarm processing and continues alarm monitoring.
[0015]
In addition, the present invention displays an alarm window in which a plant is classified for each system on a display device, and by selecting the displayed alarm window, an input point in an alarm state belonging to the window can be easily recognized. An object is to provide an alarm device.
[0016]
Further, the present invention provides an alarm device that notifies an alarm by changing the format according to the combination of the categories of alarms generated so that the importance (category) of the alarm can be recognized when the alarm occurs. With the goal.
[0017]
It is another object of the present invention to provide an alarm device that adds and manages an alarm generation time during an alarm determination process so that there is no alarm determination deviation in the alarm determination process of two or more control devices.
[0018]
It is another object of the present invention to provide an alarm device that prevents unnecessary alarms from being output in advance during periodic inspections.
[0019]
It is another object of the present invention to provide a hard copy output control system capable of storing screen data to be hard copied in a storage medium other than paper, or an alarm device equipped with the hard copy output control system.
[0022]
[Means for Solving the Problems]
That is,Claim1The alarm device of the invention includes an alarm window database for storing alarm window information to be displayed on the display device for each input point, an alarm window state memory for storing the current state of the alarm window displayed on the display device, and a plant Alarm determination means for determining an alarm state for each input point based on the process data from, and alarm information to be displayed on the display device based on the alarm window database and the alarm window state memory from the determination result of the alarm determination means The alarm information creating means to be created, the alarm window point data table for storing the alarm status of each input point obtained from the alarm information creating means for each alarm window, and the alarm window displayed on the display device are selected by the operator. Based on the selected alarm window selection information, the corresponding alarm window in the alarm window status memory is updated while it is selected, and the alarm window point data table is updated. The alarm state of the input point corresponding to the alarm window is taken out, the alarm window selecting means for generating alarm point information, the alarm information from the alarm information generating means and the alarm point information from the alarm window selecting means are output to the display device Output processing means.
[0023]
Claim1In the invention, only the alarm message belonging to the alarm window selected by the operator is displayed on the display device, so that the operator can easily recognize the input point (alarm point) generating the alarm. .
[0024]
Claim2The alarm device of the invention includes an alarm determination unit that determines an alarm state for each input point based on process data from the plant, an alarm category database that stores alarm category information indicating the importance as an alarm for each input point, and Correspondence between alarm category information setting means for extracting alarm category information of an input point determined as an alarm from the alarm category database based on the determination result from the alarm determination means, and combinations of alarm categories and alarm notification patterns The combination of alarm categories is determined from the alarm notification pattern database for storing information and the alarm category information at the input point determined to be an alarm from the alarm category information setting means, and the corresponding alarm notification pattern information is obtained from the alarm notification pattern database. Alarm information that is taken out and created according to this alarm notification pattern And creating means, characterized by comprising an output processing means for outputting processing to the output device corresponding based on the alarm information from the alarm information creating means.
[0025]
Claim2In this invention, the number of alarm messages displayed on the display device and the display color can be changed according to the level of importance of the generated alarm, or the alarm can be notified by changing the tone of the alarm sound. Can quickly recognize the importance of the alarm.
[0028]
Claim3The invention of claim 1And 2The alarm device includes an alarm excluding unit that sets whether or not to exclude each predetermined alarm and suppresses information output of the alarm that is set to be excluded.
[0029]
The alarm device of the invention of claim 43In the alarm device described in the above, the alarm excluding means sets whether to exclude alarm determination for each input point or predetermined input point group, and suppresses information output of the alarm that has been excluded, and , An alarm window database for storing correspondence information between the input points and the alarm window, and determining an alarm state for each input point based on process data from the plant, and from the input point determined to be an alarm by the alarm excluding means An alarm determination unit that outputs an alarm determination result by excluding the set input points, an alarm window state memory that stores a current display state of the alarm window, and the alarm window database from the determination result of the alarm determination unit And alarm information generating means for generating display information of the alarm window and display information of the alarm message based on the alarm window state memory, and the alarm information generating means Characterized by comprising an output processing means for outputting processing displaying information created me.
[0030]
Claim3and4In this invention, by providing alarm exclusion means such as an alarm exclusion switch for each control device or alarm window, it is possible to prevent unnecessary alarm output due to periodic inspection or the like.
[0031]
Claim5The invention of claim 1 to claim 14In this alarm device, a means for saving the screen data being displayed on the display device in the storage memory in response to a hard copy request from the operator, and a hard copy request confirmation indicating the storage contents of the storage memory in response to a hard copy confirmation request from the operator Accepts a hard copy output request of the hard copy screen selected by the operator from the means for displaying the screen on the display device and the hard copy request confirmation screen, and retrieves the corresponding hard copy screen data from the storage memory to the hard copy output device Means for outputting, and means for accepting a hard copy save request of the hard copy screen selected by the operator from the hard copy request confirmation screen, taking out the corresponding hard copy screen data from the save memory, and saving it in the storage device. It is characterized by that.
[0033]
Claim5In this invention, it is possible to confirm the screen requested for hard copy and output it as a hard copy or save it in a storage device. Thereby, since it can preserve | save in storage media other than paper, degradation of hard copy screen data can be prevented.
[0034]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0035]
FIG. 1 shows a first embodiment of the present invention. An alarm device according to the present embodiment includes n alarm processing computers, that is, alarms that receive process data from a plant 11 such as a power plant and perform alarm processing. A priority determination switching unit 13 for determining which of the generation unit 12, n alarm generation units 12 to use, an alarm message input unit 14 for capturing alarm message data from the alarm generation unit 12 for alarm processing, and an alarm It comprises a display processing means 16 for displaying an alarm message from the message input means 14 on the alarm output device 15.
[0036]
FIG. 2 shows the configuration of FIG. 1 in more detail. Each alarm creating unit 12 inputs a plant input unit 21 that inputs process data from the plant 11 by a connection signal from the priority determination switching unit 13. An alarm setting value table 22 for storing an alarm setting value for determining whether or not there is an alarm for each input point of process data, an alarm setting value input means 23 for extracting an alarm setting value from the alarm setting value table 22, and a plant input Based on the process data from the means 21 and the corresponding alarm set value from the alarm set value input means 23, the alarm determination means 24 for determining whether or not there is an alarm, and the alarm information is created based on the determination result from the alarm determination means 24 The alarm information generation means 25 and an alarm output processing unit for performing an alarm notification output process to the alarm output device 15 based on the alarm information from the alarm information generation means 25 It is composed of a 26.
[0037]
The priority determination switching unit 13 includes a priority processing unit 27 and a switching unit 28. The priority generation unit 27 determines the alarm generation unit 12 to execute the alarm process, and switches to the determined alarm generation unit 12. A connection signal is output by 28.
[0038]
As the alarm output device 15, a printer 29, a chime 30, a display device 1 and the like are installed.
[0039]
Next, the operation of the present embodiment will be described with reference to FIGS.
The priority determination switching means 13 inputs signals indicating normality / abnormality of each of the n alarm processing computers corresponding to the alarm creation means 12, and the priority processing means 27 has the highest priority among normal computers. Determine the high calculator, ie the alarm creation means 12. The switching means 8 of the priority determination switching means 13 sends a connection signal to the alarm processing computer (alarm creating means 12) determined by the priority processing means 27 to execute alarm processing.
[0040]
When the alarm creating unit 12 receives the connection signal from the priority determination switching unit 13, the alarm creating unit 12 inputs the process data from the plant 11 through the plant input unit 21. The input process data is compared with the alarm set value of the corresponding input point taken out from the alarm set value table 22 by the alarm set value input means in the alarm determination means 24, and input when the alarm set value deviates. The point is determined as an alarm. Next, the alarm creating unit 12 creates alarm information based on the determination result of the alarm determining unit 24, the alarm set value used for the determination, and the process data by the alarm information generating unit 25, and the result is output to the alarm output processing unit 26. To output to the printer 29 and chime 30 of the alarm output device 15.
[0041]
Further, the alarm message input means 14 takes in the alarm message data from the alarm information created by the alarm information creation means 25 through the priority determination switching means 13 when there is an alarm display request from the operator, and performs display processing. The information is displayed on the display device 1 of the alarm output device 15 via the means 16.
[0042]
When the computer that has performed the alarm processing stops, the priority determination switching means 13 cuts off the connection signal sent to the computer and stops the processing, and has the highest priority among normal alarm processing computers. A connection signal is sent to a high alarm processing computer to request execution of alarm processing.
[0043]
Further, when the alarm processing computer having a higher priority than the computer that is executing the alarm process becomes normal, the priority determination switching unit 13 disconnects the connection signal that has been sent to the computer that is executing the alarm process, and outputs the connection signal. Switch the destination to a higher priority computer.
[0044]
As is clear from the above description, according to the present embodiment, the alarm processing is made redundant by using a computer having a higher priority among normal computers. The alarm processing can be backed up sequentially until all the computers that perform are stopped.
[0045]
FIG. 3 shows a second embodiment of the present invention. The alarm device of the present embodiment includes a plant input means 31 for inputting process data from the plant 11 and an alarm set value for storing an alarm set value. Table 32, alarm set value input means 33 for extracting the alarm set value from the alarm set value table 32, and comparison of the process data from the plant input means 31 and the alarm set value from the alarm set value input means 33, An alarm determination means 34 for determining an alarm state, an alarm window database 35 for storing alarm window information corresponding to each input point and a display pattern for each alarm window, and an alarm for storing the current display state of the alarm window Window status memory 36, alarm information creation means 37, and alarm window point data table 3 for storing the current alarm status of each input point belonging to each alarm window Display processing means 39 for performing display processing of the display data on the display device 1, and alarm window selection means for discriminating the alarm window selected by the dialogue device 40 and creating message data of alarm points belonging to this alarm window 41.
[0046]
FIG. 4 shows a data configuration example of the alarm window database 35. A corresponding alarm window is set for each input point of process data, and a display pattern for normal / abnormal is set for each alarm window. .
[0047]
FIG. 5 shows an example of the data structure of the alarm window status memory 36. The current status data indicating whether or not the current display status is an alarm status for each alarm window, and whether or not the driver has selected the current status. State data is stored.
[0048]
FIG. 6 shows a data configuration example of the alarm window point data table 38, in which alarm states of input points belonging to the alarm window are stored for each alarm window.
[0049]
Next, the operation of the present embodiment will be described.
The plant input means 31 periodically reads data for monitoring such as the temperature and pressure of the plant and notifies the alarm determination means 34.
[0050]
The alarm determination unit 34 reads the alarm set value table 32 in which the alarm set value is stored for each input point via the alarm set value input unit 33 according to the input point notified from the plant input unit 31. It is determined whether or not the input plant state is an alarm. If the determined result is normal → alarm or alarm → normal, the alarm information creation means 37 is notified of the alarm state transition information together with the input point number as the input point information.
[0051]
The alarm information creation means 27 takes out the alarm determination result information notified from the alarm determination means 34 (step 100), as shown in the flow of processing in FIG. 7, and corresponds to the input point number in the alarm determination result information. The window information data is extracted from the alarm window database 35 as shown in FIG. 4 (step 101). Next, using the window information data extracted from the alarm window database 35 as a key, the current status of the alarm window and the selected state of the alarm window are extracted from the alarm window state memory 36 (step 102). Judge the alarm state transition of the input point from the current status
(Step 103).
[0052]
When the alarm state transition of the input point is alarm → normal, and there is no input point determined to be alarmed in the alarm window to which the input point belongs, all alarm normal return alarm information data based on the alarm window database 35, that is, Create alarm window display data for normal return pattern. At this time, if the corresponding alarm window is selected, alarm message data is created (step 104).
[0053]
If the alarm status transition of the input point is alarm → normal, but the alarm window to which the input point belongs still contains an alarm generation status input point, no alarm window display data is created. Is selected, alarm message data is created (step 105).
[0054]
When the alarm state transition at the input point is normal → alarm, the display data of the alarm occurrence pattern is created based on the alarm window database 35. Further, if an alarm window is selected at this time, alarm message data is created (step 106).
[0055]
After creating the alarm display data, the alarm information creating means 37 updates the alarm window state in the alarm window state memory 36 and stores the alarm state of the changed input point in the alarm window point data table 38 to create it. The displayed data is transferred to the display processing means 39.
[0056]
The display processing means 39 performs warning window display and warning message display on the display device 1 based on the received display data.
[0057]
When the operator wants to know more detailed alarm information from the alarm window information displayed on the display device 1, the alarm window selection means 41 is selected by selecting a desired alarm window area in the dialogue device 40. The alarm point included in the window (the input point in the alarm generation state) is extracted from the alarm window point data table 38 and message data is created.
[0058]
The display processing unit 39 displays the message data created by the alarm window selection unit 41 on the display device 1 and updates the area corresponding to the selected alarm window in the alarm window state memory as being selected.
[0059]
As is clear from the above description, according to the present embodiment, the installation space of the alarm window can be reduced, and the alarm window information displayed on the display device can be changed to the alarm window as necessary. It is possible to easily recognize an input point (alarm point) generating an alarm among the input points to which it belongs.
[0060]
FIG. 8 shows a third embodiment of the present invention. The alarm device of the present embodiment includes a plant input means 45 for inputting process data from the plant 11 and an alarm set value for storing an alarm set value. Table 46, an alarm set value input means 47 for extracting an alarm set value from the alarm set value table 46, a process data from the plant input means 45 and an alarm set value from the alarm set value input means 47 to compare each input point. An alarm determination means 48 for determining an alarm state, an alarm category database 49 for storing alarm category information indicating importance as an alarm for each input point, and an alarm category for setting alarm category information of an input point determined to be an alarm An information setting means 50, an alarm notification pattern database 51 for storing correspondence information between combinations of alarm categories and alarm notification patterns; Alarm category combination pattern setting means 52 for setting an alarm category combination pattern based on the alarm notification pattern database 51 based on the alarm category information from the alarm category information setting means 50, alarm determination information and alarm categories from the alarm category information setting means 50 Alarm notification information generating means 53 for generating alarm notification information based on the alarm category combination pattern from the combination pattern setting means 52, and an alarm for displaying an alarm message on the display device 1 based on the alarm notification information from the alarm notification information generating means 53 A message output unit 54 and an alarm sound output unit 56 that outputs an alarm sound from the speaker 55 based on the alarm notification information from the alarm notification information creation unit 53 are configured.
[0061]
FIG. 9 shows a configuration example on the network of the present embodiment. The plant input means 45 to the alarm determination means 48 shown in FIG. 8 are incorporated in the control devices 61a, 61b,. 61b,... Are connected to the alarm processing server 63 and the alarm processing client 64 via the network 62a. The alarm processing server 63 has an alarm category information setting unit 50 shown in FIG. 8, and the alarm processing client 64 has an alarm category combination pattern setting unit 52 and an alarm notification information creating unit 53. The alarm processing client 64 is further connected to a display processing device 65 composed of the alarm message output means 54 and the display device 1 and a voice notification device 66 composed of the alarm sound output means 56 and the speaker 55 via the network 62b.
[0062]
In FIG. 9, 61a to 61c, 63 and 64 are computers on the network, respectively, and the process data of the plant 11 is subjected to alarm judgment by the control devices 61a to 61c, and the result and process data are sent to the alarm processing server. 63 and the alarm processing client 64. The alarm processing server 63 determines alarm category information, and the result is transmitted to the alarm processing client 64. The alarm processing client 64 processes the data from each of the control devices 61a, 61b,... And the alarm processing server 63, and the generated alarm notification information is output from the display processing device 65 or the voice notification device 66.
[0063]
Next, the operation of the present embodiment will be described with reference to FIGS. 10 to 12 showing the processing flow of the control devices 61a, 61b,..., The alarm processing server 63 and the alarm processing client 64, respectively.
[0064]
As shown in FIG. 10, each of the control devices 61 a to 61 c inputs process data from the plant 11 by the plant input unit 45 (step 200) and passes it to the alarm determination unit 48. On the other hand, the alarm determination means 48 searches the alarm set value database 46 through the alarm set value input means 47 for the alarm set value (step 201), determines the alarm state (steps 202 to 204), and obtains the determination result. It is transmitted along with the plant data via the network 62a (step 205).
[0065]
As shown in FIG. 11, the alarm processing server 63 inputs plant data and its alarm determination result from each of the control devices 61a to 61c by the alarm category information setting means 50 (step 210). The alarm category database 49 is searched (step 211), the obtained data is set as alarm category information (step 212), and the data is transmitted to the alarm processing client 64 via the network 62a together with the plant data and the alarm determination result. (Step 213).
[0066]
As shown in FIG. 12, the alarm processing client 64 inputs plant data and its alarm determination result together with the alarm category information by the alarm notification information creating means 63 (step 220), and the alarm category for each input point where an alarm is generated. The type is determined (step 221). Next, the alarm notification pattern database 51 is searched (step 223) from the determined alarm category type and the number of occurrences via the alarm category combination pattern setting means 52 (step 222), and the obtained notification pattern and alarm information are obtained. Is transmitted to the alarm sound output means 56 and the alarm message output means 54.
[0067]
The alarm sound output means 56 causes the speaker 55 to output an alarm sound having a tone color or volume designated according to the notification pattern transmitted from the alarm processing client 64.
[0068]
The alarm message output means 54 outputs an alarm message to the display device 1 in a display format such as a display color specified according to the notification pattern transmitted from the alarm processing client 64.
[0069]
As is clear from the above description, according to the present embodiment, the number of alarm messages displayed on the display device and the display color are changed or the tone of the alarm sound is changed according to the importance of the generated alarm. It is possible to change and notify the occurrence of an alarm, and to make the operator quickly recognize the importance of the alarm.
[0070]
FIG. 13 shows a fourth embodiment of the present invention. The alarm device according to the present embodiment includes the pressure, temperature, etc. from the plant 11 installed in each control device 71a, 71b,. Plant input means 72 for periodically fetching process data indicating plant state quantities, an alarm set value table 73 for storing alarm set values, an alarm set value input means 74 for taking out alarm set values from the alarm set value table 73, and an input process An alarm determination means 75 for determining whether or not there is an alarm from the alarm set value corresponding to the data, an alarm determination information output means 76 for outputting an alarm determination result and time as alarm determination information, and each control device 71a, 71b,. Alarm determination information input means 79 for inputting alarm determination information from each of the control devices 71a, 71b,... Database 80 for storing input point names corresponding to points, alarm message creating means 81 for creating alarm message information based on alarm judgment information and database 80, and display processing means for displaying the created alarm message on display device 1 82.
[0071]
Next, the operation of the present embodiment will be described.
In the control device 71b, the plant input means 72 periodically takes in plant state quantities such as pressure and temperature from the plant 11 as process data and notifies the alarm determination means 73. At this time, it is assumed that the process input value at the input point A0001 (main steam pressure) is 10 MPa and the process input value at the input point A0002 (main steam temperature) is 530 ° C.
[0072]
In the alarm set value table 73, the maintenance staff sets and changes the alarm set value for each input point from the set value changing device 83, so that the alarm set value and the upper / lower limit type are set for each input point. As value information, it is stored as shown in FIG.
[0073]
The alarm set value input means 74 extracts alarm set value information from the alarm set value table 73 for each input point of the input process data.
[0074]
The alarm determination means 75 is alarm set value information corresponding to the process input value from the alarm set value input means 74 and the main steam pressure = 10 MPa of the process input value taken in by the plant input means 72 and the main steam temperature = 530 ° C. An upper limit value of a certain main steam pressure = 15 MPa and an upper limit value of the main steam temperature = 500 ° C. are sequentially compared. The main steam pressure is normal because the process input value 10 MPa is smaller than the upper limit value 15 MPa of the alarm set value, and the next main steam temperature is an alarm because the process input value 530 ° C deviates from the upper limit value 500 ° C of the alarm set value. Set the alarm contact to be performed and the respective alarm time. In this case, the alarm contact at the input point A0001 = 0, the alarm contact at the input point A0002 = 1, and the alarm time at this time is 10: 15: 30.5 seconds at the input point A0001, and 10: 15: 31.0 seconds at the input point A0002. Suppose there was.
[0075]
The alarm determination information output means 76 has an alarm contact point = 0, 1, alarm time = 10: 15: 30.5 seconds, 10: 15: 31.0 seconds, and 10: 15: 31.0 seconds, which are the determination results of the alarm determination means 75, respectively. The process input value used for the determination = 10 MPa, 530 ° C. and the alarm limit value information = 15 MPa (upper limit value), 500 ° C. (upper limit value) are sent to the network 77.
[0076]
In another controller 71a, the process input values notified from the plant input means 72 to the alarm determination means 75 are reheat steam pressure (input point A0003) = 13 MPa, reheat steam temperature (input point A0004) = 480. Suppose that it was ℃.
[0077]
The alarm determination unit 75 inputs the process input from the alarm set value table 73 by the alarm set value input unit 74 with respect to the reheat steam pressure = 13 MPa and the reheat steam temperature = 480 ° C. of the process input values taken in by the plant input unit 72. The upper limit value of the reheat steam pressure = 10 MPa and the upper limit value of the reheat steam temperature = 450 ° C., which are alarm set value information corresponding to the values, are taken out and sequentially compared. The main steam pressure is an alarm because the process input value 13 MPa is larger than the upper limit value 10 MPa of the alarm set value, and the next reheat steam temperature is an alarm because the process input value 480 ° C deviates from the upper limit value 450 ° C of the alarm set value. Set the corresponding alarm contact and each alarm time. In this case, the alarm contact (input point A0003) = 1 and the alarm contact (input point A0004) = 1, and the alarm time at this time is 10: 15: 30.8 seconds (input point A0003), 10: 15: 31.5 seconds (input Point A0004).
[0078]
The alarm determination information output means 76 has an alarm contact point = 1, 1, alarm time = 10: 15: 30.8 sec, 10: 15: 31.5 sec, 10: 15: 31.5 sec, respectively, of the judgment results of the alert judgment means 75. The process input value used for the determination = 13 MPa, 480 ° C. and the alarm limit value information = 10 MPa (upper limit value), 450 ° C. (upper limit value) are sent to the network 77.
[0079]
It is assumed that the correspondences between the alarm contacts, process input values, and alarm set value information are matched.
[0080]
In the computer 78, the alarm determination information input means 79 captures alarm contact, alarm time, process input value, and alarm set value information transmitted from the respective control devices 71a, 71b... Compare with the previous alarm contact that had been changed, and determine the order of early time according to the alarm time.
[0081]
Here, it is assumed that the previous alarm contact content is alarm contact (input point A0001), (input point A0002), (input point A0003), (input point A0004) = 1, 0, 0, 0.
[0082]
The judgment result is that the main steam pressure (input point A0001) at the alarm time 10: 15: 30.5 seconds is changed from the previous value 1 to the current value 0, so the alarm is restored. Second, the alarm time 10: 15: 30.8 seconds The reheat steam pressure (input point A0003) of the previous time is 0 → the current value 1, so an alarm is generated, and the third main steam temperature (input point A0002) at the alarm time 10: 15: 31.0 seconds is the previous value 0 → Since the current value is 1, an alarm is generated, and fourth, the reheat steam temperature (input point A0004) at the alarm time 10: 15: 31.5 seconds is changed from the previous value 0 to the current value 1, and an alarm is generated. Thus, the message creation request is notified to the warning message creation means 81.
[0083]
As shown in FIG. 15, the database 80 stores a correspondence table of input point numbers and process input value names.
[0084]
The warning message creating means 81 receives the warning message creation request from the warning judgment information input means 79, and the process input values of the input points A0001, A0002, A0003, A0004 = 10 MPa, 530 ° C., 13 MPa, 480 ° C. Information = 15 MPa, 500 ° C., 10 MPa, 450 ° C. is extracted from the alarm determination information input means 79, and the corresponding process input value name = main steam pressure, main steam temperature, reheat steam pressure, reheat steam temperature, 15 is taken out from the database 80 shown in FIG. 15 and alarm message display data is created and passed to the display processing means 82.
[0085]
FIG. 16 shows the warning message display data created by the warning message creation means 81.
[0086]
The display processing means 82 takes out the alarm message display data notified from the alarm message creating means 81, displays it in red for an alarm occurrence message, displays it in green to some extent so that the operator can confirm it, and deletes it. By designation, it is converted into display data of the display device 1 and is output to the display device 1.
[0087]
Thereby, the display apparatus 1 displays an alarm message as shown in FIG.
[0088]
As described above, in the present embodiment, when the control device constantly reads the process input of the alarm target item, compares the predetermined alarm set value with the process input, and the process input value deviates from the alarm set value, The alarm time and alarm contact indicating that the alarm has deviated, the current value of the process input at that time, and the alarm set value information used by the controller for comparison are sent to the computer. By sequentially outputting the alarm point name, the current value of the process input value, and the alarm set value as an alarm message to the display device, it is possible to eliminate the timing difference in alarm generation between two or more control devices.
[0089]
FIG. 18 shows a fifth embodiment of the present invention. The alarm device of the present embodiment includes a plant input means 85 for inputting process data from the plant 11 and an alarm set value table for storing alarm set values. 86, an alarm set value input means 87 for extracting the alarm set value from the alarm set value table 86, and an alarm at each input point by comparing the process data from the plant input means 85 and the alarm set value from the alarm set value input means 87. Alarm determining means 88 for determining the state, an alarm exclusion switch 89 for suppressing the output of the alarm in advance, an alarm window state memory 90 for storing the current display state of the alarm window, and input point information belonging to each alarm window An alarm window database 91 for storing alarm information, an alarm information creating means 92 for creating alarm information based on the alarm judgment information from the alarm judgment means 88, and It is constituted by a display processing unit 93 for displaying the broadcast information to the display device 1.
[0090]
FIG. 19 shows a data configuration example of the alarm set value table 86, in which an alarm set value and its upper / lower limit type are stored for each input point of process data.
[0091]
FIG. 20 shows a data configuration example of the alarm window database 91, in which alarm window numbers, window names, and input point configuration information are stored in units of alarm windows divided for each plant system.
[0092]
Next, the operation of the present embodiment will be described.
The plant input means 85 reads process values such as temperature, pressure, flow rate, and valve opening / closing from the plant 11 and notifies the alarm determination means 88 of the process values.
[0093]
The alarm determination unit 88 reads the alarm set value set in the alarm set value table 86 via the alarm set value input unit 87 with respect to the process value input point notified from the plant input unit 85, and the process value The alarm status at the input point is judged based on whether the alarm deviates from the alarm set value or falls within the alarm set value, and if it is an alarm, then the alarm is excluded for each alarm window or control device The state of the switch 89 is referred to. If this alarm exclusion switch 89 is in the exclusion state (ON), the result determined by the alarm determination means 88 is regarded as not an alarm. If the alarm exclusion switch 89 is in a non-exclusion state (OFF), the result determined by the alarm determination means 88 is regarded as an alarm. This determination result is notified to the alarm creating means 92.
[0094]
The alarm information creation unit 92 compares the alarm determination information at the input point notified from the alarm determination unit 88 with the previous value information, and determines whether or not the alarm state has changed.
[0095]
If the previous value is normal and the current value is an alarm, an alarm message is displayed. If the previous value is an alarm and the current value is normal, an alarm return message is displayed. If the previous and current values do not change, no message is displayed.
[0096]
When there is an alarm message or an alarm return message, the alarm information creating unit 92 stores an alarm window database 91 as shown in FIG. 20 and an alarm window state memory that stores the state of each alarm window divided for each plant system. 90, the display information of the alarm window to which the message display target input point belongs is created, and the alarm window state memory 90 is updated.
[0097]
The display processing means 93 displays on the display device 1 as shown in FIG. 21 based on the warning window display information and the warning message information notified from the warning information creating means 92.
[0098]
As is apparent from the above description, according to the present embodiment, by providing an alarm exclusion switch for each control device or alarm window, it is possible to prevent unnecessary alarm output due to periodic inspections or the like.
[0099]
FIG. 22 shows a sixth embodiment of the present invention. The hard copy output control system of the present embodiment includes a screen data output processing means 2 for displaying screen data on the display device 1, and an input device 3. The hard copy request processing means 4 that receives a hard copy request from the operator via the computer and notifies the screen data output processing means 2 from the screen data output processing means 2 by the hard copy request received by the hard copy request processing means 4 The hard copy screen data storage means 96 for storing the screen data in the hard copy screen data storage memory 95 and the hard copy confirmation request from the operator via the input device 3 are received and the hardware in the hard copy screen data storage memory 95 is received. Require screen data output processing means 2 to create hard copy request confirmation screen data for copy screen data Hard copy request confirmation processing means 97 and hard copy output request processing means for accepting a hard copy output request or a hard copy storage request from an operator via a hard copy request confirmation screen displayed by the hard copy request confirmation processing means 97 98 and the hard copy output request processing means 98 to retrieve the corresponding screen data from the hard copy screen data storage memory 95 and output it to the hard copy output device 6 or the storage device 99 in response to a hard copy output request or hard copy storage request. And copy screen data output means 5.
[0100]
Next, the operation of the present embodiment will be described.
The display device 1 displays the screen data from the screen data output processing means 2, and the operator inputs a hard copy request for the displayed screen by operating the input device 3. The hard copy request processing means 4 notifies the screen data output processing means 2 of a hard copy request from the input device 3.
[0101]
The screen data output processing means 2 passes the screen data displayed on the display device 1 to the hard copy screen data storage means 96 in response to the hard copy request notified from the hard copy request processing means 4. The hard copy screen data storage unit 96 stores the screen data from the screen data output processing unit 2 in the hard copy screen data storage memory 95.
[0102]
When the operator inputs a hard copy confirmation request by operating the input device 3 in order to confirm the screen data requested by the hard copy, the hard copy request confirmation processing means 97 performs a screen data output process on the hard copy confirmation request from the operator. Inform means 2.
[0103]
The screen data output processing means 2 reads the hard copy screen data in the hard copy screen data storage memory 95 in response to the hard copy confirmation request from the hard copy request confirmation processing means 97, edits the hard copy request confirmation screen data, and displays it. 1 displays a hard copy request confirmation screen as shown in FIG.
[0104]
In FIG. 23, the target screen is selected with the cursor of the operation PB at the bottom of the hard copy request confirmation screen from the hard copy screen list displayed on the hard copy request confirmation screen, and the display of the hard copy screen and the selection of output are performed by the operation PB. Execute. When there are a plurality of confirmation screens, the screen is switched according to the previous item and the next item PB.
[0105]
The operator confirms the screen data requested for hard copy on the hard copy request confirmation screen as shown in FIG. 23, and outputs any hard copy screen data to the hard copy output device 6 or saves it to the storage device 99. Select. When outputting to the hard copy output device 6, a hard copy output request is input to the hard copy output request processing means 98 by the selection operation of the input device 3, and the hard copy output request processing means 98 is connected to the hard copy screen data output processing means 5. Notify the hardcopy output request.
[0106]
The hard copy screen data output means 98 takes out the requested hard copy screen data from the hard copy screen data storage memory 95 in response to a hard copy output request from the hard copy output request processing means 98 and outputs it to the hard copy output device 6. . As a result, the hard copy output device 6 outputs a hard copy of the screen requested to be output by the operator.
[0107]
When the hard copy screen data is stored in the storage device 99, a hard copy storage request is input to the hard copy output request processing means 98 by the selection operation of the input device 3, and the hard copy output request processing means 98 outputs the hard copy screen data. A hard copy storage request is notified to the means 5.
[0108]
The hard copy screen data output means 98 takes out the requested hard copy screen data from the hard copy screen data storage memory 95 in response to a hard copy storage request from the hard copy output request processing means 98 and stores it in the storage device 99.
[0109]
As is clear from the above description, according to the present embodiment, the screen requested for hard copy can be confirmed and output as a hard copy or saved in a storage device. Thereby, since it can preserve | save in storage media other than paper, degradation of hard copy screen data can be prevented. Also, a hard copy can be obtained from the storage medium as required.
[0110]
【The invention's effect】
As described above, according to the present invention, by providing a plurality of alarm processing computers, giving priority to them, and configuring to always use the highest priority computer among normal computers, Even when the alarm processing computer is stopped, it is possible to sequentially back up until all the computers that perform the alarm processing stop, thereby preventing the alarm system from being stopped.
[0111]
In addition, according to the present invention, in an alarm window-less system, an alarm device having a high monitoring function is realized by displaying an alarm message only at an alarm point of an alarm window selected by an operator from an alarm window displayed on a display device. can do.
[0112]
According to the present invention, an alarm category is set in advance for each input point, and an alarm notification pattern is determined in advance by a combination of alarm categories. Therefore, it can be easily determined.
[0113]
Further, according to the present invention, by displaying the alarm messages in the order of the alarm occurrence times, it is possible to eliminate the alarm judgment deviation of two or more control devices, and to improve the reliability of the alarm system. .
[0114]
Further, according to the present invention, by providing the alarm exclusion switch, it is possible to suppress the output of unnecessary alarms due to periodic inspections of the control device, and to prevent unnecessary confusion for the operator.
[0115]
Further, according to the present invention, the screen requested for hard copy can be output as a hard copy or stored in a storage device, whereby the hard copy screen data can be stored in a storage medium other than paper, Long-term storage of hard copy screen data can be enabled.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an alarm device according to a first embodiment of the present invention.
FIG. 2 is a block diagram showing a detailed configuration of the embodiment of the present invention shown in FIG.
FIG. 3 is a block diagram showing an alarm device according to a second embodiment of the present invention.
4 is a diagram showing a data configuration example of an alarm window database shown in FIG. 3. FIG.
FIG. 5 is a diagram showing a data configuration of an alarm window state memory shown in FIG. 3;
6 is a diagram showing a data configuration example of an alarm window point data table shown in FIG. 3. FIG.
7 is a flowchart showing a processing example of alarm information creating means shown in FIG. 3;
FIG. 8 is a block diagram showing an alarm device according to a third embodiment of the present invention.
9 is a diagram showing a schematic configuration of the alarm device shown in FIG. 8 on a network.
10 is a flowchart showing an example of alarm processing of the control device shown in FIG. 9;
FIG. 11 is a flowchart showing an example of alarm processing of the alarm processing server shown in FIG. 9;
12 is a flowchart showing an example of alarm processing of the alarm processing client shown in FIG. 9;
FIG. 13 is a block diagram showing an alarm device according to a fourth embodiment of the present invention.
14 is a diagram showing a data configuration example of an alarm setting value table shown in FIG.
15 is a diagram illustrating a data configuration example of a database illustrated in FIG. 13;
16 is a diagram showing an example of alarm message display data created by the alarm message creating means shown in FIG.
FIG. 17 is an example of a warning message display screen displayed on the display device by the display processing means shown in FIG. 13;
FIG. 18 is a block diagram showing an alarm device according to a fifth embodiment of the present invention.
19 is a diagram showing a data configuration example of an alarm set value table shown in FIG.
20 is a diagram showing a data configuration example of an alarm window database shown in FIG.
FIG. 21 is a diagram showing an example of an alarm display screen displayed on the display device by the display processing unit shown in FIG.
FIG. 22 is a block diagram illustrating a hard copy output control system according to a sixth embodiment of this invention.
23 is a diagram showing an example of a hard copy request confirmation screen in the hard copy output control system shown in FIG.
FIG. 24 is a block diagram showing a conventional example of a hard copy output control system.
[Explanation of symbols]
1 ... Display device
2 ... Screen data output processing means
3 ... Input device
4 ... Hard copy request processing means
5 ... Hard copy screen data output means
6. Hard copy output device
11 ……… Plant
12 ……… Alarm creation means
13 ...... Priority determination switching means
16, 39, 82, 93... Display processing means
21, 31, 45, 72, 85... Plant input means
22, 32, 46, 73, 86... Alarm setting value table
24, 34, 48, 75, 88 ......... Warning judgment means
25, 37, 92 .... Alarm information creation means
35, 91 ……… Alarm window database
36, 90 ......... Alarm window status memory
38 ……… Alarm window point data table
41 .... Alarm window selection means
49 ……… Alarm Category Database
50 .... Alarm category information setting means
51 ……… Alarm Notification Pattern Database
52... Alarm category combination pattern setting means
53 .... Alarm notification information creation means
61, 71 ......... Control device
62, 77 ... …… Network
81 .... Alarm message creation means
95 ......... Hardcopy screen data storage memory
96 ......... Hardcopy screen data storage means
97 ......... Hard copy request confirmation processing means
98... Hard copy output request processing means
99 ......... Storage device

Claims (5)

 Based on an alarm window database for storing alarm window information to be displayed on the display device for each input point, an alarm window state memory for storing the current state of the alarm window displayed on the display device, and process data from the plant Alarm determination means for determining an alarm state for each input point, and alarm information to be displayed on the display device based on the alarm window database and the alarm window state memory based on the determination result of the alarm determination means Alarm information creation means, an alarm window point data table that stores the alarm status of each input point obtained from the alarm information creation means for each of the alarm windows, and is selected by the operator from the alarm windows displayed on the display device Based on the selected alarm window selection information, the corresponding alarm window in the alarm window state memory is updated during selection, and the alarm window point data is updated. The alarm state of the input point corresponding to the alarm window is extracted from the table, the alarm window selecting means for generating alarm point information, the alarm information from the alarm information generating means and the alarm point information from the alarm window selecting means An alarm device comprising output processing means for performing output processing to a display device.  An alarm determination unit that determines an alarm state for each input point based on process data from the plant, an alarm category database that stores alarm category information indicating the importance as an alarm for each input point, and the alarm determination unit Based on the determination result, the alarm category information setting means for extracting the alarm category information of the input point determined to be an alarm from the alarm category database, and the alarm storing the correspondence information between the combination of alarm categories and the alarm notification pattern A combination of alarm categories is determined from the notification category database and the alarm category information at the input point determined as an alarm from the alarm category information setting means, and the corresponding alarm notification pattern information is extracted from the alarm notification pattern database, Alarm information creation that creates alarm information according to this alarm notification pattern Means and alarm device characterized by comprising an output processing means for outputting processing to the output device corresponding based on the alarm information from the alarm information creating means. The alarm device according to any one of claims 1 and 2 , further comprising an alarm exclusion unit that sets whether or not to exclude each predetermined alarm and suppresses information output of the alarm that has been excluded. . The alarm excluding means sets whether to exclude alarm determination for each input point or predetermined input point group, and suppresses information output of the alarm that is excluded, and further, the input point and the alarm window An alarm window database that stores correspondence information with the system, and an alarm state is determined for each input point based on process data from the plant, and an input point that is excluded from the input point determined as an alarm by the alarm excluding means An alarm determination unit that outputs an alarm determination result with exclusion, an alarm window state memory that stores a current display state of the alarm window, and the alarm window database and the alarm window state memory from the determination result of the alarm determination unit Based on the warning information creating means for creating the display information of the warning window and the display information of the warning message, and the display information created by the warning information creating means Alarm device according to claim 3, characterized by comprising an output processing means for force canceling. Means for storing screen data being displayed on the display device in response to a hard copy request from the operator in a storage memory, and a display device for displaying a hard copy request confirmation screen indicating the storage contents of the storage memory in response to a hard copy confirmation request from the operator The hard copy output request of the hard copy screen selected by the operator from the hard copy request confirmation screen is received, and the corresponding hard copy screen data is extracted from the storage memory and output to the hard copy output device. And means for accepting a hard copy save request of the hard copy screen selected by the operator from the hard copy request confirmation screen, taking out the corresponding hard copy screen data from the save memory, and saving it in a storage device. claims 1, wherein the serial to any one of the 4 Of warning device.

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