Alarm filtering display method and system based on power plant working conditions and operation tasks

Abstract

The application discloses a method and system for alarm screening display based on power plant working conditions and operation tasks, and the method comprises the following steps: establishing a power plant working condition alarm list corresponding to each power plant working condition according to different power plant working conditions, and screening alarm contents of the power plant working condition alarm list according to different state characteristics of different working conditions; establishing a self-defined alarm list according to operation tasks, and inputting alarm contents of the self-defined alarm list according to the operation tasks, which are different from the alarm contents of the power plant working condition alarm list; when an alarm is triggered, identifying whether the alarm is the alarm content of the power plant working condition alarm list or the self-defined alarm list, if yes, locating the position of the alarm in the two lists, and displaying the alarm on an interface. Through implementation of the application, the task load of alarm response of operators can be reduced in the work of the nuclear power plant, the performance of the operators is improved, and the risk of human error is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power plant alarm management, and particularly relates to an alarm screening display method and system based on power plant working conditions and operation tasks. BACKGROUND

[0002] In recent years, new power plants generally adopt digital control systems, and traditional analog panel alarm lamps are replaced by digital alarms. Digital alarms are not limited by panel capacity and can provide more operation information in the form of lists according to needs, while also introducing common problems such as "lock hole effect" and "avalanche of information" existing in digital systems.

[0003] In the prior art scheme one, an alarm list is displayed in the order of alarm occurrence / resumption time; in the prior art scheme two, through alarm inhibition and alarm suppression technology, alarms that do not need to be handled by the operator are no longer presented to the operator; and in the prior art scheme three, an alarm dynamic priority technology is adopted, and alarm priority is dynamically adjusted according to power plant working conditions, so that the operator can prioritize and handle alarms that need to be handled in the current state.

[0004] Under low working conditions of the power plant, the number of running equipment is reduced accordingly, but the management task of invalid alarms is multiplied, which reduces the ability of the operator to identify and manage key alarms and increases the risk of human error. SUMMARY

[0005] The technical problem to be solved by the present application is at least one defect of the related art mentioned in the background above: how to improve the effectiveness of power plant alarm attention identification, and provide an alarm screening display method and system based on power plant working conditions and operation tasks.

[0006] The technical solution adopted by the present application to solve the technical problem is: constructing an alarm screening display method based on power plant working conditions and operation tasks, the method comprising:

[0007] S1: establishing a power plant working condition alarm list corresponding to each power plant working condition according to different power plant working conditions, and the alarm content of the power plant working condition alarm list is screened according to different state characteristics of different working conditions;

[0008] S2: establishing a custom alarm list according to operation tasks, and the alarm content of the custom alarm list is input according to operation tasks and is different from the alarm content of the power plant working condition alarm list;

[0009] S3: when an alarm is triggered, identifying whether the alarm is the alarm content of the power plant working condition alarm list or the custom alarm list, if so, locating the position of the alarm in the two lists, and displaying the alarm on the interface.

[0010] Preferably, in the alarm screening display method based on power plant working conditions and operation tasks, the alarm contents of the power plant working condition alarm list are screened according to different state characteristics, including:

[0011] According to the frequency index of the alarm item and the weight assignment of the screening principle, a key degree index is obtained, and the alarm contents are screened according to the key degree index scores from high to low.

[0012] Preferably, in the alarm screening display method based on power plant working conditions and operation tasks, the screening principle includes: alarm of violating technical specification, radiation monitoring alarm, alarm affecting unit availability, equipment monitoring alarm, experience feedback type alarm and operation operation specific alarm.

[0013] Among them, in view of the priority response principle of the first fault, the screening principle excludes the first fault alarm and its direct extension alarm.

[0014] Preferably, in the alarm screening display method based on power plant working conditions and operation tasks, the frequency index of the alarm item is defined by semi-empirical definition method, which quantitatively assigns the running experience factor, and divides the alarm categories and assigns different frequency indexes.

[0015] Preferably, in the alarm screening display method based on power plant working conditions and operation tasks, when the alarm item corresponds to multiple screening principles, the key degree index increases an additional weight, and the additional weight is (N-1)*0.2, where N is the number of screening principles involved.

[0016] Preferably, in the alarm screening display method based on power plant working conditions and operation tasks, the alarm type in the self-defined alarm list includes: expected alarm, abnormal alarm and time sequence alarm.

[0017] Preferably, in the alarm screening display method based on power plant working conditions and operation tasks, the self-defined alarm list can be modified in real time based on the operation task.

[0018] Preferably, in the alarm screening display method based on power plant working conditions and operation tasks, the interface includes a list display interface and a window comprehensive display interface, and the two interfaces can be switched to each other to display the alarm information.

[0019] Preferably, in the alarm screening display method based on power plant working conditions and operation tasks, after step S3, it further includes:

[0020] S4: responding to the alarm information, the responding including muting, confirming, clearing and calling the corresponding alarm card.

[0021] The application also constructs an alarm screening display system based on power plant working conditions and operation tasks, comprising:

[0022] The first table building module is configured to build a power plant working condition alarm list corresponding to each power plant working condition according to the different power plant working conditions, and the alarm content of the power plant working condition alarm list is screened according to the different state characteristics of different working conditions.

[0023] The second table building module is configured to build a custom alarm list according to the operation tasks, and the alarm content of the custom alarm list is inputted according to the operation tasks and is different from the alarm content of the power plant working condition alarm list.

[0024] The display module is configured to, when an alarm is triggered, identify whether the alarm is the alarm content of the power plant working condition alarm list or the custom alarm list, if yes, locate the position of the alarm in the two lists, and display the alarm on the interface.

[0025] By implementing the application, the following beneficial effects are achieved:

[0026] The application discloses an alarm screening display method and system based on power plant working conditions and operation tasks, a power plant working condition alarm list is built after screening according to the different state characteristics of different power plant working conditions, a custom alarm list is built according to operation tasks, when an alarm is triggered, it is identified whether the alarm is the alarm content of the power plant working condition alarm list or the custom alarm list, if yes, the position of the alarm in the two lists is located, and the alarm is displayed on the interface. By implementing the application, important alarm screening and pushing are provided, an operator can quickly and efficiently identify and respond to the alarm closely related to the current working condition and task, economic loss caused by missing important alarms by the operator in a large number of alarms is avoided, the task load of the operator in responding to the alarm is reduced, the operator performance is improved, and the risk of human error is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0027] The application will be further described below in combination with the drawings and embodiments, and the drawings are as follows:

[0028] Figure 1 is a flowchart of the alarm screening display method based on power plant working conditions and operation tasks of the application;

[0029] Figure 2 is a schematic diagram of the working condition alarm list screen index of the application;

[0030] Figure 3 is a flowchart of the alarm screening function implementation of the application;

[0031] Figure 4 is a schematic diagram of the list display interface of the present application;

[0032] Figure 5 is a schematic diagram of the window comprehensive display interface of the present application;

[0033] Figure 6 is a module block diagram of the alarm screening display system based on power plant working conditions and operation tasks of the present application. DETAILED DESCRIPTION

[0034] In order to have a clearer understanding of the technical features, objectives and effects of the present application, the specific embodiments of the present application will be described in detail with reference to the accompanying drawings.

[0035] It should be noted that the flowchart shown in the accompanying drawings is only an exemplary description, and does not necessarily include all the contents and operations / steps, nor does it necessarily execute in the order described. For example, some operations / steps can be further divided, and some operations / steps can be combined or partially combined, so the actual execution order can be changed according to the actual situation.

[0036] The block diagram shown in the accompanying drawings is only a functional entity, and does not necessarily correspond to a physically independent entity. That is, these functional entities can be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0037] In the present embodiment, as shown in Figure 1 , the present application constructs an alarm screening display method based on power plant working conditions and operation tasks, including the following steps:

[0038] S1: According to different power plant working conditions, respectively establish power plant working condition alarm lists corresponding to the power plant working conditions, and the alarm contents of the power plant working condition alarm lists are screened according to the different state characteristics of different working conditions;

[0039] S2: Establish a custom alarm list according to the operation task, and the alarm contents of the custom alarm list are input according to the operation task, and are different from the alarm contents of the power plant working condition alarm list;

[0040] S3: When the alarm is triggered, identify whether the alarm is the alarm content of the power plant working condition alarm list or the custom alarm list, if so, locate the position of the alarm in the two lists, and display the alarm on the interface.

[0041] Preferably, the operator identifies the alarms that need special attention according to different power plant conditions, and defines the important alarm list for each power plant condition based on the characteristics of the unit equipment, which can be upgraded offline and dynamically optimized. Figure 2 As shown in the figure, according to the different state characteristics of the power plant, sixteen working conditions are divided, so sixteen state power plant working condition alarm lists need to be defined, and the corresponding alarm list screen is drawn, and the alarm content of the corresponding power plant working condition alarm list can be viewed by clicking the important alarm list.

[0042] According to the defined sixteen working conditions of the power plant, the alarm list of each working condition is defined offline, and the number of alarm lists is related to the mode. The higher the mode, the more complex the reactor state, and the number of lists is relatively small, which can greatly realize the filtering of invalid alarms in low mode. In addition, the main control operation system server will calculate the current working condition through internal calculation logic, and automatically activate the alarm list of the current working condition.

[0043] The important alarm list based on the operation task is defined online, for example, starting and stopping the main pump, etc. Since it only occurs in individual specific working conditions, after the list is defined, it needs to be manually activated to take effect, and then the screening effect is generated.

[0044] Specifically:

[0045] In this embodiment, the alarm content of the power plant working condition alarm list is screened according to different state characteristics, including:

[0046] According to the frequency index of the alarm item and the weight assignment of the screening principle, the key degree index is obtained, and the alarm content is screened according to the key degree index score from high to low.

[0047] Preferably, the key degree index is obtained by multiplying the frequency index of the alarm item and the weight assignment of the screening principle.

[0048] The screening principle includes: alarm of violating technical specification, radiation monitoring alarm, alarm affecting unit availability, equipment monitoring alarm, experience feedback alarm and operation operation specific alarm.

[0049] Preferably, in view of the principle of priority response to the first failure, the screening principle excludes the first failure alarm and its direct extension alarm, and the rest of the screening principle is divided into six categories, of which the first category is the operation-specific alarm, the operation nature of which includes immediately executing the reactor shutdown operation, immediately executing the shutdown operation and immediately executing the power reduction or stable power operation, and the weight assignment values thereof are 10, 9 and 8 respectively; the second category is the radiation monitoring alarm, the operation nature of which includes performing the radiation authenticity discrimination, and the weight assignment value thereof is 7; the third category is the technical specification violation alarm, the operation nature of which includes performing the technical specification mitigation measures, and the weight assignment value thereof is 6; the fourth category is the important equipment monitoring alarm, the operation nature of which includes appearing the initial sign of equipment damage, and the weight assignment value thereof is 5; the fifth category is the alarm affecting the unit availability, the operation nature of which includes appearing the potential shutdown, shutdown or power reduction operation, and the weight assignment value thereof is 3; and the sixth category is the major experience feedback alarm, the operation nature of which includes implementing the experience feedback to avoid recurrence, and the weight assignment value thereof is 2.

[0050] Further, the occurrence frequency index of the alarm item is defined by using the semi-empirical definition method, the operation experience factor is utilized, and the weight assignment is quantified, and the alarm categories are divided to assign different frequency indexes.

[0051] Preferably, the sample for defining the frequency index is derived from 62 operation personnel with senior operator qualification in a nuclear power plant with more than ten years of average operation experience, i.e. the cumulative operation experience is more than 600 reactor years, and the occurrence probability of the alarms other than the operation-specific operation alarm is selected respectively, and the optional content is: five levels of greater probability of occurrence within the cycle life, possible occurrence within the cycle life, greater probability of occurrence within the operation life, possible occurrence within the operation life and lower probability of occurrence within the operation life. It should be noted that for the operation-specific operation alarm, the frequency index is defined as 1, i.e. the highest frequency index. The above 62 senior operators independently divide the alarms into six categories, and the specific frequency index of a certain alarm is confirmed according to the final calculated frequency index, i.e. the occurrence frequency of the alarm.

[0052] Preferably, in view of the principle of priority response to the first failure, the screening principle excludes the first failure alarm and its direct extension alarm, and the rest of the screening principle is divided into six categories, of which the first category is the operation-specific alarm, the operation nature of which includes immediately executing the reactor shutdown operation, immediately executing the shutdown operation and immediately executing the power reduction or stable power operation, and the weight assignment values thereof are 10, 9 and 8 respectively; the second category is the radiation monitoring alarm, the operation nature of which includes performing the radiation authenticity discrimination, and the weight assignment value thereof is 7; the third category is the technical specification violation alarm, the operation nature of which includes performing the technical specification mitigation measures, and the weight assignment value thereof is 6; the fourth category is the important equipment monitoring alarm, the operation nature of which includes appearing the initial sign of equipment damage, and the weight assignment value thereof is 5; the fifth category is the alarm affecting the unit availability, the operation nature of which includes appearing the potential shutdown, shutdown or power reduction operation, and the weight assignment value thereof is 3; and the sixth category is the major experience feedback alarm, the operation nature of which includes implementing the experience feedback to avoid recurrence, and the weight assignment value thereof is 2.

[0053] Further, when the alarm item corresponds to multiple screening principles, the key degree index of the alarm item is increased by an additional weight, and the additional weight is (N-1)*0.2, where N is the number of screening principles involved.

[0054] In this embodiment, the alarm types in the custom alarm list include expected alarms, abnormal alarms, and time sequence alarms.

[0055] Preferably, the alarm types are provided as a reference for customizing alarm specifications to avoid confusion in customizing rules. In addition, the alarm types are not limited to the above three types and can also include alarms that need to be paid special attention by the operator during operation management.

[0056] The expected alarms are alarms that are expected to be triggered when performing a major operation or a periodic test, and the reason needs to be further verified if the alarms are not triggered. The abnormal alarms are alarms that are not expected to occur when performing a major operation or starting an important device, and the operator needs to immediately intervene and stop the operation once the abnormal alarms occur. The time sequence alarms are alarms that occur in a certain sequence according to a test process when performing a comprehensive periodic test, and the operator needs to check the alarms one by one. Therefore, based on the above requirements, the corresponding alarms are input in the custom alarm column in a sequence to facilitate the execution of the alarms related to the test.

[0057] In addition, in this embodiment, the custom alarm list can be modified in real time based on the operation task.

[0058] In this embodiment, the interface includes a list display interface and a window comprehensive display interface, and the two interfaces can be switched to each other to display the alarm information.

[0059] Preferably, as shown in FIG. 13, the basic framework structure of the method is defined according to the combination of the power plant working condition alarm list and the definition and effective mode of the custom alarm list. Figure 3

[0060] Preferably, the display can be displayed on a display screen in a control room or on a mobile terminal.

[0061] When an alarm occurs, as shown in FIG. 14, the list display interface is first displayed, and the alarms in the important alarm list are sequentially displayed according to the sequence of the alarm triggering, and the triggering and display are automatically selected and controlled by the custom button definition and the working condition calculation. This interface increases the triggering time information and the alarm content information compared with the comprehensive display picture, but the number of displays is limited. When an alarm in the non-power plant working condition alarm list and the custom alarm list is identified, the alarm and its information can also be displayed on the list display interface. Figure 4 The window comprehensive display interface can be switched to by the important alarm list definition button in the interface, as shown in FIG. 15.

[0062] Figure 5 ​​As shown, all important alarms are displayed independently through a single screen, with the left side being a power plant working condition alarm list and the right side being a custom alarm list. Under normal circumstances, when the alarm is not triggered, the window is statically displayed. If the upstream real-time server sends an alarm that is consistent with a certain alarm in the window, the window bar state flashes and synchronously sounds and flashes.

[0063] Based on various major operation tasks, the alarm list corresponding to the online custom operation task is selected by the operator to activate the custom major operation important alarm list, and the content of the list can be increased or decreased online.

[0064] The custom alarm list is set through a comprehensive display window, and after setting, the correctness and integrity can be verified through the display interface. When the alarm in the alarm window is triggered, the alarm column flashes to remind.

[0065] In this embodiment, step S3 further includes:

[0066] S4: responding to the alarm information, including muting, confirming, clearing, and calling the corresponding alarm card.

[0067] The interface of the method also has a query function for querying the important alarm list based on the power plant working condition and the operation task, so as to facilitate the operator to manage the important alarm list.

[0068] In this embodiment, as shown, Figure 6 The application also constructs an alarm screening and display system based on the power plant working condition and the operation task, which includes:

[0069] The first table building module is used to build a power plant working condition alarm list corresponding to each power plant working condition according to different power plant working conditions, and the alarm content of the power plant working condition alarm list is screened according to the different state characteristics of different working conditions;

[0070] The second table building module is used to build a custom alarm list according to the operation task, and the alarm content of the custom alarm list is input according to the operation task and is different from the alarm content of the power plant working condition alarm list;

[0071] The display module is used to identify whether the alarm is the alarm content of the power plant working condition alarm list or the custom alarm list when the alarm is triggered, and if so, the position of the alarm in the two lists is located, and the alarm is displayed on the interface.

[0072] Preferably, the operator identifies the alarms that need special attention and the alarms based on the characteristics of the local unit equipment according to different power plant working conditions, and defines the important alarm list under each power plant working condition offline, which can be upgraded offline and dynamically optimized. As shown, Figure 2As shown, according to the different state characteristics of the power plant, sixteen working conditions are divided, so sixteen state working condition alarm lists are defined, and the corresponding alarm list screen is drawn, and the alarm content of the corresponding power plant working condition alarm list can be viewed by clicking the important alarm list.

[0073] According to the defined sixteen working conditions of the power plant, the alarm list of each working condition is defined offline, and the number of alarm lists is related to the mode. Generally, the high mode reactor state is complex, and the number of lists is relatively large, and the low mode is relatively small, and the invalid alarm filtering under the low mode can be realized to a large extent. In addition, the main control operation system server will calculate and confirm the current working condition through internal calculation logic, and automatically activate the alarm list under the working condition.

[0074] The important alarm list based on the operation task is defined online, for example, starting and stopping the main pump. Since it only occurs in individual specific working conditions, after the list is defined, it needs to be manually activated to take effect, and then the screening effect is generated.

[0075] Specifically:

[0076] In this embodiment, the first table building module is further used for:

[0077] According to the frequency index of the alarm item and the weight assignment of the screening principle, the criticality index is obtained, and the alarm content is screened according to the criticality index score from high to low.

[0078] Preferably, the criticality index is obtained by multiplying the frequency index of the alarm item and the weight assignment of the screening principle.

[0079] The first table building module is further used for: the screening principle includes: alarm of violating the technical specification, radiation monitoring alarm, alarm affecting the unit availability, equipment monitoring alarm, experience feedback alarm and operation operation specific alarm.

[0080] Preferably, in view of the principle of priority response to the first failure, the screening principle excludes the first failure alarm and its direct extension alarm, and the rest of the screening principle is divided into six categories, of which the first category is the operation-specific alarm, the operation nature of which includes immediately executing the reactor shutdown operation, immediately executing the shutdown operation and immediately executing the power reduction or stable power operation, and the weight assignment values thereof are 10, 9 and 8 respectively; the second category is the radiation monitoring alarm, the operation nature of which includes performing the radiation authenticity discrimination, and the weight assignment value thereof is 7; the third category is the technical specification violation alarm, the operation nature of which includes performing the technical specification mitigation measures, and the weight assignment value thereof is 6; the fourth category is the important equipment monitoring alarm, the operation nature of which includes appearing the initial sign of equipment damage, and the weight assignment value thereof is 5; the fifth category is the alarm affecting the unit availability, the operation nature of which includes appearing the potential shutdown, shutdown or power reduction operation, and the weight assignment value thereof is 3; and the sixth category is the major experience feedback alarm, the operation nature of which includes implementing the experience feedback to avoid recurrence, and the weight assignment value thereof is 2.

[0081] Further, the occurrence frequency index of the alarm item is defined by using the semi-empirical definition method, the operation experience factor is utilized, and the weight assignment is quantified, and the alarm categories are divided to assign different frequency indexes.

[0082] Preferably, the sample for defining the frequency index is derived from 62 operation personnel with senior operator qualification in a nuclear power plant with more than ten years of average operation experience, i.e. the cumulative operation experience is more than 600 reactor years, and the occurrence probability of the alarms other than the operation-specific operation alarm is selected respectively, and the optional content is: five levels of greater probability of occurrence within the cycle life, possible occurrence within the cycle life, greater probability of occurrence within the operation life, possible occurrence within the operation life and lower probability of occurrence within the operation life. It should be noted that for the operation-specific operation alarm, the frequency index is defined as 1, i.e. the highest frequency index. The above 62 senior operators independently divide the alarms into six categories, and the specific frequency index is confirmed according to the final calculated frequency index, i.e. the occurrence frequency of a certain alarm.

[0083] Preferably, in view of the principle of priority response to the first failure, the screening principle excludes the first failure alarm and its direct extension alarm, and the rest of the screening principle is divided into six categories, of which the first category is the operation-specific alarm, the operation nature of which includes immediately executing the reactor shutdown operation, immediately executing the shutdown operation and immediately executing the power reduction or stable power operation, and the weight assignment values thereof are 10, 9 and 8 respectively; the second category is the radiation monitoring alarm, the operation nature of which includes performing the radiation authenticity discrimination, and the weight assignment value thereof is 7; the third category is the technical specification violation alarm, the operation nature of which includes performing the technical specification mitigation measures, and the weight assignment value thereof is 6; the fourth category is the important equipment monitoring alarm, the operation nature of which includes appearing the initial sign of equipment damage, and the weight assignment value thereof is 5; the fifth category is the alarm affecting the unit availability, the operation nature of which includes appearing the potential shutdown, shutdown or power reduction operation, and the weight assignment value thereof is 3; and the sixth category is the major experience feedback alarm, the operation nature of which includes implementing the experience feedback to avoid recurrence, and the weight assignment value thereof is 2.

[0084] Furthermore, when an alarm item corresponds to multiple screening principles, its criticality index is given an additional weight, which is (N-1)*0.2, where N is the number of screening principles involved.

[0085] Furthermore, in this embodiment, the alarm types in the custom alarm list include: expected alarms, abnormal alarms, and time-series alarms.

[0086] Preferably, the alarm type provides a custom alarm specification for reference to avoid confusion in custom rules. Furthermore, it is not limited to the three types mentioned above, but also includes alarms that require additional attention from operators for operational management.

[0087] Among them, anticipated alarms refer to alarms that are expected to be triggered normally during a major operation or periodic test; if they are not triggered, the cause needs further investigation. Abnormal alarms refer to alarms that should not occur during major operations or the startup of important equipment; if such alarms occur, the operator needs to intervene immediately and stop the operation. Sequential alarms refer to alarms that will occur sequentially according to a certain time sequence during the execution of some comprehensive periodic tests; the operator needs to check each alarm one by one. Therefore, based on this requirement, the corresponding alarms are entered online in a custom alarm field according to their sequence, facilitating the execution of alarm-related tests.

[0088] In addition, in this embodiment, the custom alarm list can be modified in real time based on the operation task.

[0089] In this embodiment, the interface includes a list display interface and a window integrated display interface, and the two interfaces can be switched to display alarm information.

[0090] Preferably, such as Figure 3 As shown, the basic framework of this method is formed by combining the power plant operating condition alarm list and the definition and activation mode of the custom alarm list.

[0091] Preferably, the display can be on a screen in the control room or on a mobile terminal.

[0092] When an alarm occurs, such as Figure 4 As shown, the alarms in the important alarm list are displayed sequentially according to their triggering order through the display list interface. The triggering and display are controlled by custom button definitions and automatic selection based on operating condition calculations. This interface adds trigger time information and alarm content information compared to the comprehensive display screen, but the number of displayed alarms is limited. When alarms from non-power plant operating condition alarm lists and custom alarm lists are detected, the alarms and their information can also be displayed in the display list interface.

[0093] Switch to the comprehensive window display interface by clicking the "Define Important Alarm List" button in its interface, such as... Figure 5As shown, all important alarms are displayed independently through a single screen, wherein the left side is a power plant working condition alarm list, and the right side is a custom alarm list, and under normal circumstances, when the alarm is not triggered, the window is statically displayed.If the upstream real-time server sends an alarm consistent with a certain alarm in the window, the window bar state flashes and synchronously sounds and flashes.

[0094] Based on various major operation tasks, the alarm list corresponding to the online custom operation task is selected by the operator manually to activate the custom major operation important alarm list, and the content of the list can be increased or decreased online.

[0095] The custom alarm list is set through a comprehensive display window, and after setting, the correctness and integrity can be verified through the display interface.When the alarm in the alarm window is triggered, the alarm column flashes to remind.

[0096] In the embodiment, the system further comprises:

[0097] The response module: according to the alarm information, the response processing includes silencing, confirmation, clearing and calling the corresponding alarm card.

[0098] The interface of the system also has a query function, which is used to query the important alarm list based on the power plant working condition and the operation task, so as to facilitate the operator to manage the important alarm list.

[0099] By implementing the present application, the following beneficial effects are obtained:

[0100] The application discloses an alarm screening and display method and system based on power plant working conditions and operation tasks, establishes a power plant working condition alarm list according to different state characteristics of different power plants, establishes a custom alarm list according to operation tasks, identifies whether the alarm is the alarm content of the power plant working condition alarm list or the custom alarm list when the alarm is triggered, and if so, positions the alarm in the two lists and displays the alarm on the interface. By implementing the present application, targeted important alarm screening and pushing are provided, which facilitates the operator to quickly and efficiently identify and respond to the alarm closely related to the current working condition and task, avoids the economic loss caused by the operator missing important alarms in a large number of alarms, reduces the task load of the operator's alarm response, is beneficial to improving the operator's performance and reducing the risk of human error.

[0101] It can be understood that the above embodiments only express the preferred embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application; it should be pointed out that for ordinary skilled in the art, the above technical features can be freely combined without departing from the concept of the present application, and several modifications and improvements can be made, which belong to the protection scope of the present application; therefore, any equivalent transformation and modification made with the patent claim scope of the present application shall belong to the coverage of the patent claim of the present application.

Claims

1. A method for displaying an alarm filter based on a power plant condition and an operation task, characterized by, The method comprises the following steps: S1: establishing power plant working condition alarm lists corresponding to different power plant working conditions respectively according to the different power plant working conditions, and alarm contents of the power plant working condition alarm lists being screened according to different state characteristics of different working conditions; The alarm contents of the power plant working condition alarm lists are screened according to different state characteristics, comprising: According to the frequency index of the alarm item and the weight assignment of the screening principle, a key degree index is obtained, and the alarm contents are screened from high to low according to the key degree index scores; The screening principle comprises: alarm of violating technical specifications, radiation monitoring alarm, alarm affecting unit availability, equipment monitoring alarm, experience feedback type alarm and operation operation specific alarm; Among them, in view of the priority response principle of the first fault, the screening principle excludes the first fault alarm and its direct extension alarm; The frequency index of the alarm item is defined by a semi-empirical definition method, which quantitatively assigns scores by using operation experience factors, and divides different frequency indexes according to alarm categories; the number of alarm list is related to the mode, the higher the mode, the more the number of list, and the lower the mode, the less the number of list; S2: establishing a custom alarm list according to an operation task, and alarm contents of the custom alarm list being input according to the operation task and being different from alarm contents of the power plant working condition alarm list; S3: when an alarm is triggered, it is identified whether the alarm is the alarm content of the power plant working condition alarm list or the custom alarm list, if so, the position of the alarm in the two lists is located, and the alarm is displayed on the interface.

2. The method of claim 1, wherein, When the alarm item corresponds to multiple screening principles, the key degree index increases an additional weight, and the additional weight is (N-1)*0.2, wherein N is the number of screening principles involved.

3. The method of claim 1, wherein the power plant condition and operation task based alarm screening display method is characterized by, The alarm types in the custom alarm list include: expected alarm, abnormal alarm and time sequence alarm.

4. The method of claim 1, wherein the power plant condition and operation task based alarm screening display method is characterized by, The custom alarm list can be modified in real time based on the operation task.

5. The method of claim 1, wherein the power plant condition and operation task based alarm screening display method is characterized by, The interface comprises a list display interface and a window comprehensive display interface, and the two interfaces can be switched to display alarm information.

6. The method of claim 1, wherein the power plant condition and operation task based alarm screening display method is characterized by, After step S3, it further comprises: S4: responding to the alarm information, and the response processing comprising muting, confirming, clearing and calling corresponding alarm cards.

7. An alarm filtering display system based on power plant operating conditions and operational tasks, characterized by, It comprises: A first table establishing module is configured to establish power plant working condition alarm lists corresponding to different power plant working conditions respectively according to the different power plant working conditions, and alarm contents of the power plant working condition alarm lists being screened according to different state characteristics of different working conditions; The alarm contents of the power plant working condition alarm lists are screened according to different state characteristics of different working conditions, comprising: According to the frequency index of the alarm item and the weight assignment of the screening principle, a key degree index is obtained, and the alarm contents are screened from high to low according to the key degree index scores; The screening principle comprises: alarm of violating technical specifications, radiation monitoring alarm, alarm affecting unit availability, equipment monitoring alarm, experience feedback type alarm and operation operation specific alarm; Among them, the screening principle excludes the first fault alarm and its direct extension alarm in view of the priority response principle of the first fault; The occurrence frequency index of the alarm item is defined by a semi-empirical definition method, which quantitatively assigns scores by using operation experience factors, classifies according to alarm categories, and assigns different frequency indexes; the number of alarm list is related to the mode, and the higher the mode, the more the number of list, and the lower the mode, the less the number of list; The second table building module is used for establishing a custom alarm list according to an operation task, and the alarm content of the custom alarm list is inputted according to the operation task and is different from the alarm content of the power plant working condition alarm list; The display module is used for identifying whether the alarm is the alarm content of the power plant working condition alarm list or the custom alarm list when the alarm is triggered, positioning the position of the alarm in the two lists if yes, and displaying the alarm on the interface.

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