CN108734201B - Classification method and system for experience feedback events of nuclear power plant based on hierarchical reason analysis method - Google Patents
Classification method and system for experience feedback events of nuclear power plant based on hierarchical reason analysis method Download PDFInfo
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Abstract
The invention discloses a classification method and a classification system for experience feedback events of a nuclear power plant based on a hierarchical cause analysis method, wherein the method comprises the following steps: receiving event information input by a management terminal, and performing reason decomposition on the event information by adopting a hierarchical reason analysis method to obtain an event reason meeting a preset condition; according to a preset correlation analysis guide graph, carrying out classification statistics on event reasons to obtain the occurrence frequency and the nuclear security culture characteristic value of the event reasons, and generating and storing an event report; and when the occurrence frequency is greater than a first preset threshold value, triggering an alarm and sending an event report to the management terminal. According to the method and the system, the event reasons can be automatically counted and classified according to the events, and the nuclear safety cultural characteristics are related to carry out quantification and fed back to the management terminal, so that an operator of the nuclear power plant can visually observe weak links in the operation and management of the power plant, obtain the occurrence frequency of a certain reason and the influenced nuclear safety cultural characteristics, and take corrective action before higher-level events occur.
Description
Technical Field
The invention relates to the technical field of nuclear power, in particular to a classification method and a classification system for experience feedback events of a nuclear power plant based on a hierarchical cause analysis method.
Background
After the nuclear power plant engineering is built and put into operation, some events caused by human errors or equipment faults can occur in the operation and maintenance process, the nuclear power plant usually records the events, searches the occurrence reasons and writes reports, so that experience training is accumulated from the occurred events to prevent similar events from being repeated, the safe and stable operation of the nuclear power plant is maximized, and the process is called operation experience feedback.
The operation experience feedback is divided into internal operation experience feedback and external operation experience feedback, wherein the internal operation experience feedback is an event occurring in the power plant, and the external operation experience feedback is an event occurring outside the power plant. According to the report system of the nuclear power plant operation unit released by the national nuclear safety administration of China, the nuclear power plant needs to regularly screen some events meeting the report standard of the nuclear safety administration from the events generated by the power plant, and reports the events to the national nuclear safety administration according to a unified format.
In the current operation experience feedback system of the nuclear power plant, in an event input link, except basic information such as a function position, a place, a unit state, an occurrence date, an event definition criterion and the like, the occurrence reason is only two options of a human factor and equipment, so that only two statistical results of the human factor or the equipment can be counted in an index output link. However, the occurrence of any event at a nuclear power plant is not a cause, and the cause of the event is often composed of a surface cause, a direct cause, a root cause, and a contributing factor. These causes and contributing factors are statistically significant over an ever-accumulating event and may help operators of nuclear power plants to intuitively observe trends in a particular area of plant management, thereby allowing operators to take corrective action before higher-level events occur.
Disclosure of Invention
The technical problem to be solved by the embodiments of the present invention is to provide a classification method and system for experience feedback events of a nuclear power plant based on a hierarchical cause analysis method, which can automatically count and classify the causes of the events according to the events, quantify and feed back the associated nuclear safety cultural characteristics to a management terminal, so that an operator of the nuclear power plant can visually observe weak links in operation and management of the power plant, obtain the occurrence frequency of a certain cause and the affected nuclear safety cultural characteristics, and take corrective action before a higher-level event occurs.
In order to solve the technical problem, an embodiment of the present invention provides a classification method for experience feedback events of a nuclear power plant based on a hierarchical cause analysis method, which specifically includes the following steps:
receiving event information input by a management terminal, and performing reason decomposition on the event information by adopting a hierarchical reason analysis method to obtain an event reason meeting a preset condition;
according to a preset correlation analysis guide graph, carrying out classification statistics on the event reasons to obtain the occurrence frequency and the nuclear security culture characteristic value of the event reasons, and generating and storing an event report according to the event information, the event reasons, the occurrence frequency and the nuclear security culture characteristic value;
and when the occurrence frequency is greater than or equal to a first preset threshold value or the nuclear safety culture characteristic value is less than a second preset threshold value, triggering an alarm and sending the event report to the management terminal.
Further, the event information is an experience feedback event which is input into the management terminal by a user according to a preset code; the event information comprises an event place, an event date, a function position, a unit state and event definition criteria; the code is an identification code of the event information.
Further, the preset condition is set according to the correlation analysis guide map; the correlation analysis guide diagram is a correlation diagram of a preset event reason analysis guide diagram and a preset nuclear security culture characteristic; wherein the event cause analysis leads the picture originating cause or direct cause, root cause or contributing factors, and barrier failure and organizational management; and the nuclear security culture characteristics are defined according to the event reason analysis guide graph, and the incidence relation between the event reason analysis guide graph and the nuclear security culture characteristics is established.
Further, the association relationship refers to that when an event reason meeting preset conditions is obtained, the nuclear security culture characteristics associated with the event reason are automatically extracted according to the event reason.
Further, the nuclear safety culture characteristic value is a score value defined for each nuclear safety culture characteristic according to a preset weighting algorithm.
Further, a hierarchical reason analysis method is adopted to perform reason decomposition on the event information to obtain an event reason meeting a preset condition, and the method specifically comprises the following steps:
according to a preset event reason hierarchical mark, performing reason decomposition on the event information by adopting a hierarchical reason analysis method to obtain a preprocessed event reason;
comparing the reason of the preprocessing event with the correlation analysis guide graph and calculating the similarity according to preset conditions;
and when the similarity is greater than or equal to a third preset threshold, judging that the reason of the pre-processing event is the event reason meeting the preset condition.
Further, the event report comprises event information, event reasons, occurrence frequency, nuclear safety culture characteristic values and corresponding position responsible person information.
The embodiment of the invention also provides a classification system of experience feedback events of a nuclear power plant based on a hierarchical reason analysis method, which comprises the following steps:
the reason decomposition unit is used for receiving the event information input by the management terminal and decomposing the reason of the event information by adopting a hierarchical reason analysis method to obtain the reason of the event meeting the preset conditions;
the classification statistical unit is used for performing classification statistics on the event reasons according to a preset correlation analysis guide map to obtain the occurrence frequency and the nuclear security culture characteristic value of the event reasons, and generating and storing an event report according to the event information, the event reasons, the occurrence frequency and the nuclear security culture characteristic value;
and the alarm unit is used for triggering an alarm and sending the event report to the management terminal when the occurrence frequency is greater than or equal to a first preset threshold value or the nuclear security culture characteristic value is less than a second preset threshold value.
Further, the event information is an experience feedback event which is input into the management terminal by a user according to a preset code; the event information comprises an event place, an event date, a function position, a unit state and event definition criteria; the code is an identification code of the event information.
Further, the preset condition is set according to the correlation analysis guide map; the correlation analysis guide diagram is a correlation diagram of a preset event reason analysis guide diagram and a preset nuclear security culture characteristic; wherein the event cause analysis leads the picture originating cause or direct cause, root cause or contributing factors, and barrier failure and organizational management; the nuclear security culture characteristics are defined according to the event reason analysis guide graph, and an incidence relation between the event reason analysis guide graph and the nuclear security culture characteristics is established; and the incidence relation refers to that when an event reason meeting preset conditions is obtained, the nuclear safety culture characteristics relevant to the event reason are automatically extracted according to the event reason.
The embodiment of the invention has the following beneficial effects:
the embodiment of the invention provides a classification method and a classification system for experience feedback events of a nuclear power plant based on a hierarchical reason analysis method, wherein the method comprises the following steps: receiving event information input by a management terminal, and performing reason decomposition on the event information by adopting a hierarchical reason analysis method to obtain an event reason meeting a preset condition; according to a preset correlation analysis guide graph, carrying out classification statistics on the event reasons to obtain the occurrence frequency and the nuclear security culture characteristic value of the event reasons, and generating and storing an event report; and when the occurrence frequency is greater than or equal to a first preset threshold value, triggering an alarm, and sending the event report to the management terminal. According to the method and the system, the event reasons can be automatically counted and classified according to the events, and the nuclear safety cultural characteristics are related to carry out quantification and fed back to the management terminal, so that an operator of the nuclear power plant can visually observe weak links in the operation and management of the power plant, obtain the occurrence frequency of a certain reason and the influenced nuclear safety cultural characteristics, and take corrective action before higher-level events occur.
Drawings
FIG. 1 is a schematic flow chart of a method for classifying experience feedback events of a nuclear power plant based on a hierarchical cause analysis method according to a first embodiment of the present invention;
FIG. 2 is a diagram of an event cause analysis guide in a first embodiment of the present invention;
FIG. 3 is a diagram of a core security full-segmented feature guide in a first embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a classification system for experience feedback events of a nuclear power plant based on a hierarchical cause analysis method according to a second embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the management terminal in the embodiment of the present invention may be a mobile terminal and a non-mobile terminal, where the non-mobile terminal includes a desktop computer, and the mobile terminal includes a Smart Phone (such as an Android Phone and an iOS Phone), Smart glasses, a Smart watch, a Smart bracelet, a tablet computer, a notebook computer, a personal digital assistant, and other mobile internet devices capable of performing wireless communication.
It is understood that the management terminal may also refer to an intelligent device in the nuclear power plant equipment. In the classification method and system for the experience feedback events of the nuclear power plant based on the hierarchical reason analysis method, the management terminal can be used for automatically inputting event information or manually inputting event information for a user, reasons can be selected according to a preset reason analysis method, and a dynamic state of the nuclear safety cultural characteristics can be obtained through associated guide pictures. That is, based on the system, the management terminal can implement the functions of condition search and input, search according to preset reasons, search according to the state of the unit, and search according to the system code. Meanwhile, the method can also realize that the keywords of the generated event report are searched. The first embodiment of the present invention:
referring to fig. 1, fig. 1 is a schematic flow chart illustrating a method for classifying experience feedback events of a nuclear power plant based on a hierarchical cause analysis method according to a first embodiment of the present invention.
A classification method of experience feedback events of a nuclear power plant based on a hierarchical cause analysis method specifically comprises the following steps:
s101, receiving event information input by a management terminal, and performing reason decomposition on the event information by adopting a hierarchical reason analysis method to obtain an event reason meeting a preset condition.
In this embodiment, the event information is an experience feedback event that is input into the management terminal by a user according to a preset code. Wherein the event information comprises an event location, an event date, a function location, a crew state, and event definition criteria. The code is an identification code of the event information.
It can be understood that event information of the nuclear power plant operation experience event needs to be recorded into a management terminal of the nuclear power plant and uploaded to a nuclear power plant management platform or a server, and then the nuclear power plant management platform or the server decomposes basic information of the event by using an accurate code according to a coding rule in the nuclear power plant and a nuclear power plant operation state by using a hierarchical reason analysis method. For example, the functional location code is H1XXX125DD, where H represents a plant code, 1 represents a unit code, XXX represents a system code, and DD represents a device code. The 10 digit number and letter code represents the functional location of the device. The unit states of the nuclear power plant are as follows: the method comprises a reactor power operation mode, a cooling shutdown mode, a maintenance shutdown mode, a refueling shutdown mode and a complete discharge mode. Therefore, according to the special encoding rule of the nuclear power plant, the occurrence place and the unit state when the event occurs can be identified, namely the encoding is the identification code of the event information.
It should be noted that the hierarchical cause analysis is a scientific method based on human psychology and ergonomic verification, and can cover all causes of events occurring in nuclear power plants. Hierarchical analysis, also known as classification or grouping, is a method of classifying, organizing and summarizing a large amount of collected statistical data about a particular topic according to a certain signature.
Referring to fig. 2, fig. 2 is a diagram of an event cause analysis guide diagram according to a first embodiment of the present invention.
In this embodiment, the preset condition is set according to the correlation analysis guide map. The event reason analysis guide map is an event reason analysis guide map which is based on event information of nuclear power plant operation experience events and selects a layering mark for classification when a layering reason analysis method is used for layering the event information. The event causes analyze the map origination cause or direct cause, root cause or contributing factors, and barrier failures and organizational management.
It is to be understood that the event reason analysis guide specifically covers the originating reason/direct reason, root reason/contributing reason of an event. The root cause/contributing cause includes equipment failure, training or authorization, procedure quality, human causes, management issues, and the like.
It should be noted that, the event information is subjected to reason decomposition by using a hierarchical reason analysis method to obtain an event reason meeting a preset condition, which specifically includes:
and according to a preset event reason hierarchical mark, performing reason decomposition on the event information by adopting a hierarchical reason analysis method to obtain a preprocessed event reason.
And comparing the reason of the preprocessing event with the correlation analysis guide graph and calculating the similarity according to preset conditions.
And when the similarity is greater than or equal to a third preset threshold, judging that the reason of the pre-processing event is the event reason meeting the preset condition.
S102, according to a preset correlation analysis guide graph, carrying out classification statistics on the event reasons to obtain the occurrence frequency and the nuclear security culture characteristic value of the event reasons, and generating and storing an event report according to the event information, the event reasons, the occurrence frequency and the nuclear security culture characteristic value.
In this embodiment, what the event is classified and counted as to the event reason is not only classified and counted as to the reason of the occurrence of a single event, but also classified and counted as to the reasons of the occurrence of a series of events, and is based on the judgment of big data. The correlation analysis guide diagram is a correlation diagram of a preset event reason analysis guide diagram and a preset nuclear security culture characteristic. Wherein the event cause analysis leads the picture originating cause or direct cause, root cause or contributing factors, and barrier failure and organizational management; and the nuclear security culture characteristics are defined according to the event reason analysis guide graph, and the incidence relation between the event reason analysis guide graph and the nuclear security culture characteristics is established.
It should be noted that, establishing the association relationship between the event reason analysis guide graph and the characteristics of the nuclear security culture enables big data statistics on the reasons and the contributing factors of some series of events, and then the reasons and the contributing factors of the events may damage a certain characteristic of the nuclear security culture, and the degree of the damage may be quantified.
Further, the association relationship refers to that when an event reason meeting preset conditions is obtained, the nuclear security culture characteristics associated with the event reason are automatically extracted according to the event reason. The core security culture characteristic value is a score value defined for each core security culture characteristic according to a preset weighting algorithm. For example, a nuclear safety culture characteristic value is set according to nuclear safety culture characteristics and self-defined consideration standards of a nuclear power plant, and when a certain event or a certain event causes damage to a certain characteristic of the nuclear safety culture and causes, and the damage degree is quantized to obtain the nuclear safety culture characteristic value, the nuclear safety culture characteristic value is compared with a preset nuclear safety culture characteristic value.
It can be understood that, the performing classification statistics on the event reasons according to a preset correlation analysis guide map means that a correlation analysis guide map constructed based on a hierarchical reason analysis method detects an event according to event information and event reasons, obtains the event reasons of the event, and performs topic attribution judgment on the event reasons according to a preset weighting algorithm or other related algorithms (such as a similarity algorithm), that is, performing classification statistics and outputting statistical results. Therefore, the method can obtain the nuclear security culture characteristic value by quantitative means, and predict the occurrence time or time period of the event and the occurrence frequency of any reason.
Referring to fig. 3, fig. 3 is a diagram of a core security full-divided feature guide diagram according to a first embodiment of the present invention.
It should be noted that the nuclear security culture sub-feature is divided into 10 features, and each feature is further divided into sub-items below. And the reason in the event reason analysis guide graph has a corresponding incidence relation with the sub-item of the core security culture characteristic. For example, "responsibility unclear, lack of accountability" in the event cause analysis guide map and "la.6 role, responsibility and authority: the leadership clearly defines (power station personnel) roles, responsibilities and authorities to ensure that the core security "has a corresponding relationship of association. If one of the reasons of a certain event is 'responsibility unclear and lack of accountability', the event will form a threat to LA.6 in the nuclear security culture characteristics, and if 'responsibility unclear and lack of accountability' is selected, then LA.6 is automatically identified and extracted, and the analyst can also think that the influence factor (0-100%) of the reason on the nuclear security sub-item is added.
S103, when the occurrence frequency is larger than or equal to a first preset threshold value or the nuclear safety culture characteristic value is smaller than a second preset threshold value, triggering an alarm and sending the event report to the management terminal.
It should be noted that the second preset threshold is a preset value of the nuclear security culture characteristic, that is, a standard score value defined for each nuclear security culture characteristic.
In this embodiment, it may be set that an event occurring due to a certain event has a gradually increasing trend (the slope of the curve increases in three consecutive measurement periods), and an alarm is triggered. As another example, if the probability of a cause exceeds 35% (first preset threshold), an alarm is triggered.
Further, the event report comprises event information, event reasons, occurrence frequency, nuclear safety culture characteristic values and corresponding position responsible person information. Therefore, the operator can make corrective actions according to the basic information and reasons of the occurrence of the event.
It should be noted that, based on the event information of the experience feedback event of the nuclear power plant uploaded by the management terminal and the preset correlation analysis guide map, the nuclear power plant management platform or the server can monitor and immediately feed back the operation event in real time in the operation process of the nuclear power plant, and when the event is detected to be abnormal, an alarm is given out to ensure that a malicious event occurs or spreads. Meanwhile, the malicious event is predicted and evaluated and fed back based on the model, so that operators can take corrective action in advance.
Because the reason in the event reason analysis guide picture in the correlation analysis guide picture and the sub-items of the nuclear safety culture characteristics have corresponding correlation, when the event is detected to be abnormal, corresponding or matched nuclear safety culture characteristics are selected for extraction according to the event reason of the event, evaluation feedback is generated according to a preset nuclear safety health degree evaluation rule and is sent to a management terminal (operator terminal) so that an operator can master the nuclear safety health degree of a nuclear power plant and the characteristic value of the corresponding nuclear safety culture characteristics in real time (the characteristic value refers to that a rating value is defined for each nuclear safety culture characteristic according to a certain related weighting algorithm, and when the related item under a certain nuclear safety culture characteristic theme fluctuates due to the occurrence of certain related event reasons, the characteristic value is also changed), through the characteristic value of the quantified nuclear safety culture characteristics, operators can intuitively master which standard item of which nuclear safety culture characteristics does not reach the standard, and particularly which culture block does not well in which place.
Therefore, the correlation between the event reason and the nuclear security culture is established, so that the characteristics of the nuclear security culture are quantized, and the health degree of the nuclear security culture is monitored, evaluated and fed back in real time.
It should be noted that, in the classification method for experience feedback events of a nuclear power plant based on a hierarchical reason analysis method provided in this embodiment, the management terminal may be configured to automatically enter event information or manually enter event information for a user, select a reason according to a preset reason analysis method, and obtain a state of a dynamic nuclear security cultural characteristic through an associated guide map. That is, based on the system, the management terminal can implement the functions of condition search and input, search according to preset reasons, search according to the state of the unit, and search according to the system code. Meanwhile, the method can also realize that the keywords of the generated event report are searched.
Further, the system can also output condition search through the management terminal, such as all event reports occurring in 2017 during overhaul of the unit, and such as all events occurring in 2015 and 2017 due to program quality.
Further, the system can also carry out free combination comparison reason input through the management terminal. For example, selecting the reasons for "program quality" and "design reasons"
Further, the search function of the system may search any html, xml, txt format of other system file sources, such as other systems used by nuclear power plants: such as a work ticket management system, a CAP (corrective action program), a system health report, and a pre-job record.
The classification method for the experience feedback events of the nuclear power plant based on the hierarchical cause analysis method provided by the embodiment comprises the following steps: receiving event information input by a management terminal, and performing reason decomposition on the event information by adopting a hierarchical reason analysis method to obtain an event reason meeting a preset condition; according to a preset correlation analysis guide graph, carrying out classification statistics on the event reasons to obtain the occurrence frequency and the nuclear security culture characteristic value of the event reasons, and generating and storing an event report; and when the occurrence frequency is greater than or equal to a first preset threshold value, triggering an alarm, and sending the event report to the management terminal. According to the method and the system, the event reasons can be automatically counted and classified according to the events, and the nuclear safety culture characteristics are related to carry out quantification and fed back to the management terminal, so that operators of the nuclear power plant can visually observe the events in the operation and management of the power plant and take corrective action before higher-level events occur.
Second embodiment of the invention:
referring to fig. 4, fig. 4 is a schematic structural diagram of a classification system for experience feedback events of a nuclear power plant based on a hierarchical cause analysis method according to a second embodiment of the present invention.
The embodiment of the invention also provides a classification system of experience feedback events of a nuclear power plant based on a hierarchical reason analysis method, which comprises the following steps:
the reason decomposition unit 201 is configured to receive event information entered by the management terminal, and perform reason decomposition on the event information by using a hierarchical reason analysis method to obtain an event reason meeting a preset condition.
In this embodiment, the event information is an experience feedback event that is input into the management terminal by a user according to a preset code. Wherein the event information comprises an event location, an event date, a function location, a crew state, and event definition criteria. The code is an identification code of the event information.
It can be understood that event information of the nuclear power plant operation experience event needs to be recorded into a management terminal of the nuclear power plant and uploaded to a nuclear power plant management platform or a server, and then the nuclear power plant management platform or the server decomposes basic information of the event by using an accurate code according to a coding rule in the nuclear power plant and a nuclear power plant operation state by using a hierarchical reason analysis method. For example, the functional location code is H1XXX125DD, where H represents a plant code, 1 represents a unit code, XXX represents a system code, and DD represents a device code. The 10 digit number and letter code represents the functional location of the device. The unit states of the nuclear power plant are as follows: the method comprises a reactor power operation mode, a cooling shutdown mode, a maintenance shutdown mode, a refueling shutdown mode and a complete discharge mode. Therefore, according to the special encoding rule of the nuclear power plant, the occurrence place and the unit state when the event occurs can be identified, namely the encoding is the identification code of the event information.
Referring to fig. 2, fig. 2 is a diagram of an event cause analysis guide diagram according to a first embodiment of the present invention.
In this embodiment, the preset condition is set according to the correlation analysis guide map. The event reason analysis guide map is an event reason analysis guide map which is based on event information of nuclear power plant operation experience events and selects a layering mark for classification when a layering reason analysis method is used for layering the event information. The event causes analyze the map origination cause or direct cause, root cause or contributing factors, and barrier failures and organizational management.
It is to be understood that the event reason analysis guide specifically covers the originating reason/direct reason, root reason/contributing reason of an event. The root cause/contributing cause includes equipment failure, training or authorization, procedure quality, human causes, management issues, and the like.
It should be noted that, the event information is subjected to reason decomposition by using a hierarchical reason analysis method to obtain an event reason meeting a preset condition, which specifically includes:
and according to a preset event reason hierarchical mark, performing reason decomposition on the event information by adopting a hierarchical reason analysis method to obtain a preprocessed event reason.
And comparing the reason of the preprocessing event with the correlation analysis guide graph and calculating the similarity according to preset conditions.
And when the similarity is greater than or equal to a third preset threshold, judging that the reason of the pre-processing event is the event reason meeting the preset condition.
And the classification statistical unit 202 is configured to perform classification statistics on the event reasons according to a preset association analysis guide map to obtain occurrence frequency and a nuclear security culture characteristic value of the event reasons, and generate and store an event report according to the event information, the event reasons, the occurrence frequency and the nuclear security culture characteristic value. In this embodiment, it should be noted that the classification and statistics unit 202 may perform classification table statistics on the entered event information and output the event information as an icon or Excel.
In this embodiment, the association analysis guide map is an association map between a preset event cause analysis guide map and a preset nuclear security culture characteristic. Wherein the event cause analysis leads the picture originating cause or direct cause, root cause or contributing factors, and barrier failure and organizational management; and the nuclear security culture characteristics are defined according to the event reason analysis guide graph, and the incidence relation between the event reason analysis guide graph and the nuclear security culture characteristics is established.
Further, the association relationship refers to that when an event reason meeting preset conditions is obtained, the nuclear security culture characteristics associated with the event reason are automatically extracted according to the event reason. The core security culture characteristic value is a score value defined for each core security culture characteristic according to a preset weighting algorithm.
It can be understood that, the performing classification statistics on the event reasons according to a preset correlation analysis guide map means that a correlation analysis guide map constructed based on a hierarchical reason analysis method detects an event according to event information and event reasons, obtains the event reasons of the event, and performs topic attribution judgment on the event reasons according to a preset weighting algorithm or other related algorithms (such as a similarity algorithm), that is, performing classification statistics and outputting statistical results. Therefore, the method can obtain the nuclear security culture characteristic value by quantitative means, and predict the occurrence time or time period of the event and the occurrence frequency of any reason.
Referring to fig. 3, fig. 3 is a diagram of a core security full-divided feature guide diagram according to a first embodiment of the present invention.
It should be noted that the nuclear security culture sub-feature is divided into 10 (which can be set according to actual conditions), and each feature is divided into sub-items below. And the reason in the event reason analysis guide graph has a corresponding incidence relation with the sub-item of the core security culture characteristic. For example, "responsibility unclear, lack of accountability" in the event cause analysis guide map and "la.6 role, responsibility and authority: the leadership clearly defines (power station personnel) roles, responsibilities and authorities to ensure that the core security "has a corresponding relationship of association. If one of the reasons of a certain event is 'responsibility unclear and lack of accountability', the event will form a threat to LA.6 in the nuclear security culture characteristics, and if 'responsibility unclear and lack of accountability' is selected, then LA.6 is automatically identified and extracted, and the analyst can also think that the influence factor (0-100%) of the reason on the nuclear security sub-item is added.
And the alarm unit 203 is configured to trigger an alarm and send the event report to the management terminal when the occurrence frequency is greater than or equal to a first preset threshold or the nuclear security culture characteristic value is less than a second preset threshold.
In this embodiment, it may be set that an event occurring due to a certain event has a gradually increasing trend (the slope of the curve increases in three consecutive measurement periods), and an alarm is triggered. As another example, if the probability of a cause exceeds 35% (first preset threshold), an alarm is triggered.
Further, the event report comprises event information, event reasons, occurrence frequency, nuclear safety culture characteristic values and corresponding position responsible person information.
It should be noted that, based on the event information of the experience feedback event of the nuclear power plant uploaded by the management terminal and the preset correlation analysis guide map, the nuclear power plant management platform or the server can monitor and immediately feed back the operation event in real time in the operation process of the nuclear power plant, and when the event is detected to be abnormal, an alarm is given out to ensure that a malicious event occurs or spreads. Meanwhile, the malicious event is predicted and evaluated and fed back based on the model, so that operators can take corrective action in advance.
Because the reason in the event reason analysis guide picture in the correlation analysis guide picture and the sub-items of the nuclear safety culture characteristics have corresponding correlation, when the event is detected to be abnormal, corresponding or matched nuclear safety culture characteristics are selected for extraction according to the event reason of the event, evaluation feedback is generated according to a preset nuclear safety health degree evaluation rule and is sent to a management terminal (operator terminal) so that an operator can master the nuclear safety health degree of a nuclear power plant and the characteristic value of the corresponding nuclear safety culture characteristics in real time (the characteristic value refers to that a rating value is defined for each nuclear safety culture characteristic according to a certain related weighting algorithm, and when the related item under a certain nuclear safety culture characteristic theme fluctuates due to the occurrence of certain related event reasons, the characteristic value is also changed), through the characteristic value of the quantified nuclear safety culture characteristics, operators can intuitively master which standard item of which nuclear safety culture characteristics does not reach the standard, and particularly which culture block does not well in which place.
Therefore, the correlation between the event reason and the nuclear security culture is established, so that the characteristics of the nuclear security culture are quantized, and the health degree of the nuclear security culture is monitored, evaluated and fed back in real time.
It should be noted that, in the classification system for experience feedback events of a nuclear power plant based on a hierarchical reason analysis method provided in the embodiment, the management terminal may be configured to automatically enter event information or allow a user to manually enter event information, select a reason according to a preset reason analysis method, and obtain a state of a dynamic nuclear security cultural characteristic through an associated guide map. That is, based on the system, the management terminal can implement the functions of condition search and input, search according to preset reasons, search according to the state of the unit, and search according to the system code. Meanwhile, the method can also realize that the keywords of the generated event report are searched.
Further, the system can also output condition search through the management terminal, such as all event reports occurring in 2017 during overhaul of the unit, and such as all events occurring in 2015 and 2017 due to program quality.
Further, the system can also carry out free combination comparison reason input through the management terminal. For example, selecting the reasons for "program quality" and "design reasons"
Further, the search function of the system may search any html, xml, txt format of other system file sources, such as other systems used by nuclear power plants: such as a work ticket management system, a CAP (corrective action program), a system health report, and a pre-job record.
According to the classification system for the experience feedback events of the nuclear power plant based on the hierarchical reason analysis method, event information input by a management terminal is received, and the reason of the event information is decomposed by adopting the hierarchical reason analysis method, so that the reason of the event meeting preset conditions is obtained; according to a preset correlation analysis guide graph, carrying out classification statistics on the event reasons to obtain the occurrence frequency and the nuclear security culture characteristic value of the event reasons, and generating and storing an event report; and when the occurrence frequency is greater than or equal to a first preset threshold value, triggering an alarm, and sending the event report to the management terminal. According to the method and the system, the event reasons can be automatically counted and classified according to the events, and the nuclear safety culture characteristics are related to carry out quantification and fed back to the management terminal, so that operators of the nuclear power plant can visually observe the events in the operation and management of the power plant and take corrective action before higher-level events occur.
The foregoing is directed to the preferred embodiment of the present invention, and it is understood that various changes and modifications may be made by one skilled in the art without departing from the spirit of the invention, and it is intended that such changes and modifications be considered as within the scope of the invention.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
Claims (6)
1. A classification method for experience feedback events of a nuclear power plant based on a hierarchical cause analysis method is characterized by comprising the following steps:
receiving event information input by a management terminal, and performing reason decomposition on the event information by adopting a hierarchical reason analysis method to obtain an event reason meeting a preset condition, wherein the method specifically comprises the following steps:
according to a preset event reason hierarchical mark, performing reason decomposition on the event information by adopting a hierarchical reason analysis method to obtain a preprocessed event reason; according to preset conditions, comparing the reason of the preprocessing event with a preset correlation analysis guide graph and calculating the similarity; when the similarity is larger than or equal to a third preset threshold, judging that the reason of the preprocessed event is an event reason meeting the preset condition;
the preset condition is set according to the correlation analysis guide map; the correlation analysis guide diagram is a correlation diagram of a preset event reason analysis guide diagram and a preset nuclear security culture characteristic; wherein the event cause analysis lead includes an origination cause or direct cause, a root cause or contributing factor, and a barrier failure and organizational management; the nuclear security culture characteristics are defined according to the event reason analysis guide graph, and an incidence relation between the event reason analysis guide graph and the nuclear security culture characteristics is established; the incidence relation refers to that when an event reason meeting preset conditions is obtained, nuclear safety culture characteristics relevant to the event reason are automatically extracted according to the event reason;
according to the correlation analysis guide graph, carrying out classification statistics on the event reasons to obtain the occurrence frequency and the nuclear security culture characteristic value of the event reasons, and generating and storing an event report according to the event information, the event reasons, the occurrence frequency and the nuclear security culture characteristic value;
and when the occurrence frequency is greater than or equal to a first preset threshold value or the nuclear safety culture characteristic value is less than a second preset threshold value, triggering an alarm and sending the event report to the management terminal.
2. The classification method for the experience feedback events of the nuclear power plant based on the hierarchical cause analysis method according to claim 1, wherein the event information is the experience feedback events which are input into the management terminal by a user according to a preset code; the event information comprises an event place, an event date, a function position, a unit state and event definition criteria; the code is an identification code of the event information.
3. The method for classifying experience feedback events of nuclear power plants based on hierarchical cause analysis according to claim 1, wherein the nuclear safety culture characteristic value is a score value defined for each nuclear safety culture characteristic according to a preset weighting algorithm.
4. The method for classifying experience feedback events of nuclear power plants based on hierarchical cause analysis as recited in claim 1, wherein the event report includes event information, event cause, frequency of occurrence, nuclear safety culture characteristic values, and corresponding post-responsible person information.
5. A classification system for experience feedback events of a nuclear power plant based on a hierarchical cause analysis method is characterized by comprising the following steps:
the reason decomposition unit is used for receiving the event information input by the management terminal and decomposing the reason of the event information by adopting a hierarchical reason analysis method to obtain the event reason meeting the preset conditions, and specifically comprises the following steps:
according to a preset event reason hierarchical mark, performing reason decomposition on the event information by adopting a hierarchical reason analysis method to obtain a preprocessed event reason; according to preset conditions, comparing the reason of the preprocessing event with a preset correlation analysis guide graph and calculating the similarity; when the similarity is larger than or equal to a third preset threshold, judging that the reason of the preprocessed event is an event reason meeting the preset condition;
the preset condition is set according to the correlation analysis guide map; the correlation analysis guide diagram is a correlation diagram of a preset event reason analysis guide diagram and a preset nuclear security culture characteristic; wherein the event cause analysis lead includes an origination cause or direct cause, a root cause or contributing factor, and a barrier failure and organizational management; the nuclear security culture characteristics are defined according to the event reason analysis guide graph, and an incidence relation between the event reason analysis guide graph and the nuclear security culture characteristics is established; the incidence relation refers to that when an event reason meeting preset conditions is obtained, nuclear safety culture characteristics relevant to the event reason are automatically extracted according to the event reason;
the classification statistical unit is used for performing classification statistics on the event reasons according to a preset correlation analysis guide map to obtain the occurrence frequency and the nuclear security culture characteristic value of the event reasons, and generating and storing an event report according to the event information, the event reasons, the occurrence frequency and the nuclear security culture characteristic value;
and the alarm unit is used for triggering an alarm and sending the event report to the management terminal when the occurrence frequency is greater than or equal to a first preset threshold value or the nuclear security culture characteristic value is less than a second preset threshold value.
6. The classification system for the experience feedback events of the nuclear power plant based on the hierarchical cause analysis method according to claim 5, wherein the event information is the experience feedback event which is input into the management terminal by a user according to a preset code; the event information comprises an event place, an event date, a function position, a unit state and event definition criteria; the code is an identification code of the event information.
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| CN113032455B (en) * | 2021-03-12 | 2022-05-24 | 福建宁德核电有限公司 | Method and system for analyzing nuclear power plant event report condition and readable storage medium |
| CN113610356A (en) * | 2021-07-16 | 2021-11-05 | 如东信息技术服务(上海)有限公司 | Airport core risk prediction method and system |
| CN114357130A (en) * | 2021-12-08 | 2022-04-15 | 中核武汉核电运行技术股份有限公司 | Automatic trend analysis method for low-level events of nuclear power plant based on machine learning |
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