Nuclear power equipment inspection alarm method, system, equipment and medium

Abstract

The invention provides a nuclear power equipment inspection alarm method, system, equipment and medium, and the method comprises the steps: obtaining the states of a plurality of recognition point locations, the recognition point locations comprise basic point locations and associated point locations, and the state of each basic point location is associated with the state of at least one associated point location; when the state of the basic point location is abnormal and is not matched with the state of the corresponding associated node, starting a primary alarm mechanism; when the state of the basic point location is normal but is not matched with the state of the corresponding associated node, starting a secondary alarm mechanism; when the state of the basic point location is normal and the fluctuation amplitude of the corresponding operation parameter exceeds a preset threshold value, a third-level alarm mechanism is started; wherein the priority of the first-level alarm mechanism is higher than that of the second-level alarm mechanism, and the priority of the second-level alarm mechanism is higher than that of the third-level alarm mechanism. The method can effectively reduce the false alarm risk, and guarantees the stable operation of equipment.

Description

Technical Field

[0001] This invention relates to the field of nuclear power equipment inspection and alarm methods, systems, equipment, and media. Background Technology

[0002] With the rapid development of the nuclear power industry, the safe and stable operation of nuclear power equipment is crucial to the reliability of the entire power system. Nuclear power equipment inspection, as an important means of ensuring the safe operation of nuclear power equipment, directly affects the safe operating status of the equipment through the accuracy and timeliness of its alarm mechanism. Currently, nuclear power equipment inspection alarm systems have gradually evolved from traditional manual inspections to intelligent inspection systems. Through real-time monitoring and analysis of equipment operating status, these systems promptly detect equipment anomalies and issue alarm prompts.

[0003] However, existing methods for constructing alarm logic in intelligent inspection of nuclear power equipment have significant shortcomings, making it difficult to meet the accurate alarm requirements under collaborative monitoring of multiple identification points. Specifically, existing technologies have the following deficiencies: First, existing methods mostly adopt a customized logic development model for single devices, lacking a unified construction framework. Alarm logic for different devices cannot be reused, and new devices need to be redesigned and developed when they are added for inspection, which increases development costs and prolongs the system deployment cycle.

[0004] Secondly, in the process of logic construction, the correlation between multiple identification points is often ignored, and alarms are determined based solely on data from a single point. This leads to one-sided alarm logic and frequent false alarms and missed alarms. Traditional single-point alarms are prone to false alarms such as sensor mis-triggers or missed alarms such as failure to identify abnormalities in multi-parameter coordination.

[0005] Furthermore, the lack of correlation verification between multi-source data points makes it impossible to identify anomalies such as "contradictory statuses," like a knob being turned off while the current exceeds the limit. The alarm logic also suffers from poor adaptability, failing to match the varying operating conditions of nuclear power plant switchgear with the characteristics of different location types, thus affecting the accuracy and timeliness of alarms.

[0006] Finally, existing alarm systems lack closed-loop management after an alarm is triggered, and do not provide functions for fault location, historical review, and linkage with maintenance records, making it difficult to form a complete equipment status monitoring and maintenance system. Summary of the Invention

[0007] In view of the problems existing in the prior art, the present invention proposes a method, system, equipment and medium for nuclear power equipment inspection alarm, which mainly solves the problem of insufficient accuracy of the current alarm methods.

[0008] To achieve the above and other objectives, the technical solution adopted by the present invention is as follows.

[0009] This invention provides a nuclear power equipment inspection and alarm method, comprising: The status of multiple identification points is acquired, wherein the identification points include basic points and associated points, and the status of each basic point is associated with the status of at least one associated point; the basic points are detection points corresponding to the operating parameters of nuclear power equipment, and the associated points are detection points corresponding to indicating devices or protective devices; When the status of the basic point is abnormal and does not match the status of the corresponding associated node, a level one alarm mechanism is activated. When the status of the basic point is normal, but does not match the status of the corresponding associated node, a secondary alarm mechanism is activated; When the status of the basic point is normal, but the fluctuation of the corresponding operating parameters exceeds the preset threshold, a three-level alarm mechanism is activated; wherein the priority of the first-level alarm mechanism is higher than that of the second-level alarm mechanism, and the priority of the second-level alarm mechanism is higher than that of the third-level alarm mechanism.

[0010] In one embodiment of the present invention, when adding a new identification point, the normal state of the new identification point is defined, and the association relationship of the new identification point is added to associate it with the corresponding basic point or associated point.

[0011] In one embodiment of the present invention, the first-level alarm mechanism includes: activating the audible and visual alarm device and the corresponding protection device at the basic point, and pushing the fault point; The secondary alarm mechanism includes: activating a designated alarm device, prompting the target object to conduct on-site verification, and recording the status of the corresponding location within a preset time period to generate a trend report; The three-level alarm mechanism includes: recording fluctuation data and generating a prompt message based on the fluctuation data when the corresponding identification point is inspected again.

[0012] In one embodiment of the present invention, the activation conditions of the first-level alarm mechanism, the second-level alarm mechanism and the third-level alarm mechanism are judged in order of priority, and after any one of the alarm mechanisms is activated, the activation condition judgment of the subsequent low-priority alarm mechanisms is stopped.

[0013] In one embodiment of the present invention, when the alarm mechanisms at each level are activated, on-site images of the corresponding identification points are collected simultaneously for viewing.

[0014] In one embodiment of the present invention, after the alarm mechanisms at all levels are activated, maintenance records are received to update the equipment historical database, and the status of the corresponding identification points is reassessed.

[0015] In one embodiment of the present invention, the method further includes, before obtaining the status of multiple identification points: Collect data from each of the identified locations and convert the collected data into a preset standardized format. The standardized format data is preprocessed to remove interfering data; Based on the preprocessed data, determine whether the relationship between the base points and related points is normal. If it is abnormal, output the abnormal information. If everything is normal, proceed to determine the activation conditions for subsequent alarm mechanisms at all levels.

[0016] The present invention also provides a system utilizing the aforementioned nuclear power equipment inspection and alarm method, comprising: The data acquisition module is used to acquire the status of multiple identification points, wherein the identification points include basic points and associated points, and the status of each basic point is associated with the status of at least one associated point; the basic points are detection points corresponding to the operating parameters of nuclear power equipment, and the associated points are detection points corresponding to indicating devices or protective devices; The alarm processing module is used to activate a level 1 alarm mechanism when the status of the basic point is abnormal and does not match the status of the corresponding associated node; to activate a level 2 alarm mechanism when the status of the basic point is normal but does not match the status of the corresponding associated node; and to activate a level 3 alarm mechanism when the status of the basic point is normal but the fluctuation range of the corresponding operating parameter exceeds a preset threshold. The level 1 alarm mechanism has a higher priority than the level 2 alarm mechanism, and the level 2 alarm mechanism has a higher priority than the level 3 alarm mechanism.

[0017] The present invention also provides a computer device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the nuclear power equipment inspection and alarm method.

[0018] The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the nuclear power equipment inspection and alarm method.

[0019] As described above, the nuclear power equipment inspection alarm method, system, equipment and medium of the present invention have the following beneficial effects.

[0020] By establishing a cross-monitoring mechanism between basic and associated points, the false alarms and missed alarms caused by flawed logic in existing technologies are resolved, improving alarm accuracy. A three-level cross-alarm priority logic accurately identifies anomalies of different risk levels, reducing false alarm rates. The priority mechanism ensures high-risk faults are handled first, improving system security and reliability. A full-process data collaboration and closed-loop mechanism, including data preprocessing, correlation verification, alarm evidence collection, and maintenance records, forms a complete closed-loop management system. Compared to existing technologies lacking closed-loop management, this invention provides fault location, historical backtracking, and maintenance record linkage functions. Alarm logic for different devices is reusable, reducing development costs and shortening system deployment cycles. When new equipment is inspected, only the normal status of the newly added identification point needs to be defined and the correlation added; there is no need to redesign and develop alarm logic. The alarm logic has strong adaptability, matching the differences in operating conditions of nuclear power switchgear and the characteristics of point types, improving system adaptability. Through the forced correlation design of multiple types of identification points, a "parameter-status-control" correlation monitoring network is constructed, realizing multi-point collaborative monitoring. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a nuclear power equipment inspection and alarm method in one embodiment of the present invention; Figure 2 This is a schematic diagram of the overall judgment logic of the nuclear power equipment inspection and alarm method in one embodiment of the present invention; Figure 3 This is a block diagram of a nuclear power equipment inspection and alarm system according to one embodiment of the present invention. Detailed Implementation

[0022] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0023] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0024] Please see Figure 1 , Figure 1This is a schematic flowchart of a nuclear power equipment inspection and alarm method according to an embodiment of the present invention. The method includes the following steps: S100: Obtain the status of multiple identification points, wherein the identification points include basic points and associated points, and the status of each basic point is associated with the status of at least one associated point; the basic points are detection points corresponding to the operating parameters of nuclear power equipment, and the associated points are detection points corresponding to indicating devices or protective devices.

[0025] In this embodiment, taking the intelligent inspection system for nuclear power switchgear as an example, eight core identification points are deployed on the nuclear power switchgear, including a digital tube voltmeter (point 1), a red power indicator light (point 2), a green closing indicator light (point 3), a yellow fault alarm light (point 4), a pointer-type ammeter (point 5), a temperature and humidity sensor (point 6), a circuit breaker control knob (point 7), and three sets of protection pressure plates (point 8). The system clearly defines the association rules for each point; for example, point 2 must be lit when the voltage of point 1 is ≥361V. Points 1, 5, and 6 involve operating parameters of the nuclear power switchgear such as voltage, current, temperature, and humidity, and can be used as basic points. Points 2, 3, and 4 involve indicating devices, such as alarm lights and indicator lights, while points 7 and 8 involve protective devices, such as circuit breaker knobs and protection pressure plates; therefore, they can be used as associated points. The status of each point and the status association relationship between basic points and associated points can be preset as follows: Point 1 (Digital tube type meter - voltage value): Displays the bus voltage inside the cabinet, normal range 380V±5% (three phases are displayed separately, denoted as Ua, Ub, Uc); Point 2 (circular indicator light - power indicator light): red, normally "on" (related to point 1: when point 1 detects a voltage ≥361V, point 2 must be on; when the voltage <361V, point 2 must be off). Point 3 (square indicator light - circuit breaker closing indicator light): green, normal state "on / off" matches the knob state (associated with point 7: point 3 is on when the knob of point 7 is "On", and point 3 is off when the knob is "Off"). Point 4 (Status Screen Light - Fault Alarm Light): Yellow, normally "off" (remains off when there is no fault, and can be turned on when any point is abnormally triggered to trigger an alarm); Point 5 (pointer-type instrument - current value): Displays the circuit current inside the cabinet, normal range 0-100A (three phases are displayed separately, denoted as Ia, Ib, Ic); Point 6 (cabinet temperature and humidity sensor): normal temperature range 0-40℃, normal humidity range 30%-60%RH (the two are monitored independently, but both affect insulation performance). Point 7 (Knob Status - Circuit Breaker Control Knob): Two positions (On - Close, Off - Open). In normal state, "On / Off" is consistent with the operating requirements (related to points 3 and 5: when the knob is "On", point 3 is lit and the current of point 5 should be ≥1A; when the knob is "Off", point 3 is off and the current of point 5 should be ≈0A). Point 8 (column-shaped pressure plate - protection pressure plate): 3 sets (overcurrent protection, overvoltage protection, leakage protection), normally "in action" (related to point 4: when the pressure plate is "out of action", the corresponding protection function is disabled, and point 4 needs to flash to remind).

[0026] Before acquiring the status of multiple identification points, the method also includes the following preprocessing steps: S101: Collect data from each identification point and convert the collected data into a preset standardized format.

[0027] The data acquisition module is set to periodically collect data from 8 points, converting the digital tube / pointer data of operating parameters such as voltage, current, temperature and humidity into digital signals. The status of indicator lights / knobs is recorded as "on / off" or "On / Off" format and stored in the system database.

[0028] S102: Preprocess the standardized format data to remove interfering data.

[0029] The system starts a data preprocessing program to automatically filter out jump values ​​in the digital tube caused by electromagnetic interference, such as voltage jumps from 380V to 450V and then recovers.

[0030] S103: Determine whether the relationship between the base point and the associated point is normal based on the preprocessed data. If it is abnormal, output the abnormal information.

[0031] The system checks the correlation between points. For example, if it finds that point 7 is "On" while point 3 is "Off", it will be directly marked as "abnormal correlation". If it is normal, it will proceed to determine the activation conditions of subsequent alarm mechanisms at all levels.

[0032] S110: When the status of a basic point is abnormal and does not match the status of the corresponding associated node, a level 1 alarm mechanism is activated.

[0033] In one embodiment, the first-level alarm mechanism includes: activating the audible and visual alarm device and the corresponding protection device at the basic point, and pushing the fault point. For example, when the voltage at point 1 is >400V and the overvoltage protection plate at point 8 is "out" and the circuit breaker at point 4 is "off" (no overvoltage protection and no alarm, indicating a risk of equipment burnout); or, when the current of any phase at point 5 is >120A and the knob at point 7 is "off" and the closing indicator at point 3 is "on" (the knob is open but the circuit breaker is actually closed, the current exceeds the limit, indicating a risk of malfunction), the audible and visual alarm is immediately triggered, the cabinet is urgently tripped, and the fault point (such as "Ua overvoltage + overvoltage protection plate out") is pushed to the maintenance terminal, along with an isolation operation guide. S120: When the status of the basic point is normal, but does not match the status of the corresponding associated node, the secondary alarm mechanism is activated.

[0034] In one embodiment, the secondary alarm mechanism includes: activating a designated alarm device, prompting the target object to conduct on-site verification, and recording the status of the corresponding points within a preset time period to generate a trend report. For example, if the power light at point 2 is off and the three-phase voltage at point 1 is ≥361V (the voltage is normal but the power light is not on, which may be due to an indicator light malfunction or a loose connection in the wiring); or if the temperature at point 6 is >40℃ and the humidity is >60%RH and the leakage protection circuit breaker at point 8 is engaged (temperature and humidity exceed the standard, although the protection is engaged, the insulation performance is reduced). At this time, a voice alarm is issued, prompting on-site verification within 20 minutes, and the status records of points 1-8 for the past 10 minutes are automatically retrieved to generate a trend report.

[0035] S130: When the status of the basic point is normal, but the fluctuation of the corresponding operating parameters exceeds the preset threshold, the three-level alarm mechanism is activated.

[0036] In one embodiment, the three-level alarm mechanism includes: recording fluctuation data and generating a prompt message based on the fluctuation data when the corresponding identification point is inspected again. For example, the three-phase voltage deviation at point 1 is >5V (e.g., Ua=385V, Ub=378V, not exceeding the threshold but unbalanced, which may affect the power supply to the equipment); or, trigger condition 2: the three-phase current deviation at point 5 is >10A and the knob at point 7 is "On" (current imbalance, the load may be uneven). At this time, the system records the abnormal data, highlights it in the inspection report, and prompts the system to focus on retesting point 1 or 5 during the next inspection.

[0037] It should be noted that the priority of the Level 1 alarm mechanism is higher than that of the Level 2 alarm mechanism, and the priority of the Level 2 alarm mechanism is higher than that of the Level 3 alarm mechanism. The activation conditions for the Level 1, Level 2, and Level 3 alarm mechanisms are determined according to their priority order, and once any one alarm mechanism is activated, the activation condition determination for subsequent lower-priority alarm mechanisms stops. The system's operational logic judgment module verifies according to the "Level 1 → Level 2 → Level 3" priority: first, it checks whether the Level 1 alarm condition is met; if so, the corresponding alarm is triggered; if not, it checks the Level 2 alarm condition; if so, the corresponding alarm is triggered; if still not met, it checks the Level 3 alarm condition; if so, the corresponding alarm is triggered; if none of these conditions are met, the system is considered to be operating normally.

[0038] In one embodiment, when the alarm mechanisms at each level are activated, on-site images of the corresponding identification points are collected simultaneously for viewing.

[0039] When an alarm is triggered, the system activates the high-definition camera inside the cabinet to capture images of the scene, providing a direct basis for subsequent analysis and processing.

[0040] In one embodiment, after the alarm mechanisms at each level are activated, maintenance records are received to update the equipment historical database, and the status of the corresponding identification points is reassessed.

[0041] After maintenance personnel complete the maintenance of the corresponding identified locations, they upload the maintenance records to the system. The system then updates the equipment's historical database and reassesses the location status, completing closed-loop management. By reassessing the location status, it can be determined whether the anomalies have been eliminated, ensuring the reliability of equipment operation.

[0042] In one embodiment, when adding a new identification point, the normal state of the new identification point is defined, and the association relationship of the new identification point is added to associate it with the corresponding basic point or associated point.

[0043] When the system needs to expand its monitoring range, new identification points can be added through this step, and their normal status and relationship with other points can be defined to ensure that the system can correctly judge the abnormal situation of the newly added points.

[0044] The aforementioned nuclear power equipment inspection and alarm method enables multi-level monitoring and alarming of the operating status of nuclear power equipment, improving equipment safety and reliability. This method sets different priority alarm mechanisms based on different abnormal situations, ensuring that the most serious abnormalities receive the highest priority handling, effectively reducing the operational risks of nuclear power equipment, and forming a closed-loop alarm handling system. It can quickly achieve functions such as fault location, historical data review, and maintenance record linkage. Cross-alarm verification through multi-point correlation avoids contradictory statuses (e.g., a knob tripping but current exceeding limits). This method can be applied to auxiliary power distribution switchgear in the nuclear island, power distribution switchgear in the main plant of the conventional island, or power distribution cabinets temporarily put into use during generator unit overhauls. It solves the problems of false alarms (e.g., sensor mis-triggers) and missed alarms (e.g., unidentified multi-parameter coordinated abnormalities) associated with traditional single-point alarms.

[0045] Please see Figure 3 , Figure 3 This is a block diagram of a nuclear power equipment inspection and alarm system according to an embodiment of the present invention. This embodiment also provides a nuclear power equipment inspection and alarm system, which includes: a data acquisition module 30, used to acquire the status of multiple identification points, wherein the identification points include basic points and associated points, and the status of each basic point is associated with the status of at least one associated point; the basic points are detection points corresponding to the operating parameters of the nuclear power equipment, and the associated points are detection points corresponding to indicating devices or protective devices; an alarm processing module 31, used to activate a first-level alarm mechanism when the status of a basic point is abnormal and does not match the status of the corresponding associated node; to activate a second-level alarm mechanism when the status of a basic point is normal but does not match the status of the corresponding associated node; and to activate a third-level alarm mechanism when the status of a basic point is normal but the fluctuation range of the corresponding operating parameter exceeds a preset threshold; wherein the priority of the first-level alarm mechanism is higher than the priority of the second-level alarm mechanism, and the priority of the second-level alarm mechanism is higher than the priority of the third-level alarm mechanism.

[0046] In one embodiment, the system determines the status of multiple identification points based on data collected by the data acquisition module 30. These identification points include basic points and associated points. Basic points are the detection points corresponding to the operating parameters of nuclear power equipment, such as the locations of digital tube voltmeters, pointer ammeters, and temperature and humidity sensors. Associated points are the detection points corresponding to indicating devices or protective devices, such as the locations of red power indicator lights, green closing indicator lights, yellow fault alarm lights, circuit breaker control knobs, and protection pressure plates. The status of each basic point is associated with the status of at least one associated point. For example, when the digital tube voltmeter displays a voltage ≥361V, the red power indicator light should be illuminated.

[0047] In one embodiment, before acquiring the status of multiple identification points, the system also performs the following steps: First, data from each identification point is collected and converted into a preset standardized data format. For example, the data from the digital tube / pointer is converted into digital signals, and the status of the indicator light / knob is recorded as "on / off" or "On / Off" and stored in the system database.

[0048] Then, the standardized format data is preprocessed to remove interfering data. For example, the system automatically filters out jump values ​​in the digital display caused by electromagnetic interference, such as voltage jumps from 380V to 450V and then recovers.

[0049] Next, based on the preprocessed data, determine whether the correlation between the base points and related points is normal. If abnormal, output the abnormal information. For example, if it is found that the green closing indicator light is in the "off" state when the circuit breaker control knob is in the "On" state, it is directly marked as "correlation abnormal". If normal, proceed to determine the activation conditions of subsequent alarm mechanisms at all levels.

[0050] In one embodiment, when determining the alarm mechanism activation conditions, the alarm processing module 31 performs the determination according to priority order: When the status of a basic point is abnormal and does not match the status of its corresponding associated node, the processor activates a Level 1 alarm mechanism. For example, when the voltmeter displays a voltage > 400V, the overvoltage switch is in the "out" state, and the yellow fault alarm light is in the "off" state, a Level 1 alarm is triggered. The Level 1 alarm mechanism includes: activating the audible and visual alarm device and the corresponding protection device of the basic point, and pushing the fault point, such as triggering the audible and visual alarm and emergency tripping.

[0051] When the status of a basic point is normal, but does not match the status of its corresponding associated node, the processor activates a secondary alarm mechanism. For example, when the red power indicator light is off but the three-phase voltage is ≥361V, a secondary alarm is triggered. The secondary alarm mechanism includes: activating a designated alarm device, prompting the target object to conduct on-site verification, and recording the status of the corresponding point within a preset time period to generate a trend report, such as issuing a voice prompt.

[0052] When the status of the basic points is normal, but the fluctuation range of the corresponding operating parameters exceeds the preset threshold, the processor activates a three-level alarm mechanism. For example, when the three-phase voltage deviation is >5V, a three-level alarm is triggered. The three-level alarm mechanism includes: recording the fluctuation data, and generating prompt information based on the fluctuation data when the corresponding identification point is inspected again, such as recording the anomaly and highlighting it.

[0053] In one embodiment, the activation conditions for the Level 1, Level 2, and Level 3 alarm mechanisms are determined in order of priority, and once any one alarm mechanism is activated, the activation condition determination for subsequent lower-priority alarm mechanisms is stopped. The Level 1 alarm mechanism has a higher priority than the Level 2 alarm mechanism, and the Level 2 alarm mechanism has a higher priority than the Level 3 alarm mechanism.

[0054] In one embodiment, when each level of the alarm mechanism is activated, the system controls the synchronous acquisition of on-site images of the corresponding identification points for viewing. For example, if an alarm is triggered, the high-definition camera inside the cabinet is activated to capture on-site footage.

[0055] In one embodiment, after each level of alarm mechanism is activated, the system receives maintenance records to update the equipment historical database and reassesses the status of the corresponding identified locations. For example, after maintenance personnel handle the issue, they upload the maintenance records to the system, update the equipment historical database, and finally reassess the location status to complete the closed loop.

[0056] In one embodiment, when a new identification point needs to be added, relevant personnel can specify the normal status of the new identification point in the system and add the association relationship of the new identification point to associate it with the corresponding basic point or associated point. For example, when a temperature sensor is added to a nuclear power switchgear, the system will set its normal operating temperature range to 20-40℃ and associate it with the corresponding temperature alarm indicator. The temperature range is only an example and can be configured and adjusted according to the actual application scenario.

[0057] This embodiment provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. The computer device is used to execute a nuclear power equipment inspection and alarm method.

[0058] When the processor of this computer device executes the computer program, it first acquires the status of multiple identification points, including basic points and associated points. Basic points are the detection points corresponding to the operating parameters of the nuclear power equipment, such as the locations of digital tube voltmeters, pointer ammeters, and temperature and humidity sensors. Associated points are the detection points corresponding to indicating or protective devices, such as the locations of red power indicator lights, green closing indicator lights, yellow fault alarm lights, circuit breaker control knobs, and protection pressure plates. The status of each basic point is associated with the status of at least one associated point; for example, when the digital tube voltmeter displays a voltage ≥361V, the red power indicator light should be illuminated.

[0059] Before acquiring the status of multiple identification points, the processor will perform the following steps: First, data from each identification point is collected and converted into a preset standardized data format. For example, the data from the digital tube / pointer is converted into digital signals, and the status of the indicator light / knob is recorded as "on / off" or "On / Off" and stored in the system database.

[0060] Then, the standardized format data is preprocessed to remove interfering data. For example, the system automatically filters out jump values ​​in the digital display caused by electromagnetic interference, such as voltage jumps from 380V to 450V and then recovers.

[0061] Next, based on the preprocessed data, determine whether the correlation between the base points and related points is normal. If abnormal, output the abnormal information. For example, if it is found that the green closing indicator light is in the "off" state when the circuit breaker control knob is in the "On" state, it is directly marked as "correlation abnormal". If normal, proceed to determine the activation conditions of subsequent alarm mechanisms at all levels.

[0062] When determining the conditions for triggering the alarm mechanism, the processor makes judgments according to priority order: When the status of a basic point is abnormal and does not match the status of its corresponding associated node, the processor activates a Level 1 alarm mechanism. For example, when the voltmeter displays a voltage > 400V, the overvoltage switch is in the "out" state, and the yellow fault alarm light is in the "off" state, a Level 1 alarm is triggered. The Level 1 alarm mechanism includes: activating the audible and visual alarm device and the corresponding protection device of the basic point, and pushing the fault point, such as triggering the audible and visual alarm and emergency tripping.

[0063] When the status of a basic point is normal, but does not match the status of its corresponding associated node, the processor activates a secondary alarm mechanism. For example, when the red power indicator light is off but the three-phase voltage is ≥361V, a secondary alarm is triggered. The secondary alarm mechanism includes: activating a designated alarm device, prompting the target object to conduct on-site verification, and recording the status of the corresponding point within a preset time period to generate a trend report, such as issuing a voice prompt.

[0064] When the status of the basic points is normal, but the fluctuation range of the corresponding operating parameters exceeds the preset threshold, the processor activates a three-level alarm mechanism. For example, when the three-phase voltage deviation is >5V, a three-level alarm is triggered. The three-level alarm mechanism includes: recording the fluctuation data, and generating prompt information based on the fluctuation data when the corresponding identification point is inspected again, such as recording the anomaly and highlighting it.

[0065] The activation conditions for alarm mechanisms at levels one, two, and three are determined in order of priority. Once any one alarm mechanism is activated, the activation condition determination for subsequent lower-priority alarm mechanisms ceases. The priority of level one alarm mechanisms is higher than that of level two alarm mechanisms, and the priority of level two alarm mechanisms is higher than that of level three alarm mechanisms.

[0066] When alarm mechanisms at each level are activated, the processor controls the synchronous acquisition of on-site images from the corresponding identification points for viewing. For example, if an alarm is triggered, the high-definition camera inside the cabinet is activated to capture on-site footage.

[0067] Once alarm mechanisms at all levels are activated, the processor receives maintenance records to update the equipment's historical database and reassesses the status of the corresponding identified locations. For example, after maintenance personnel handle the issue, they upload the maintenance record to the system, update the equipment's historical database, and finally reassess the location's status, completing the closed loop.

[0068] In one embodiment, when a new identification point needs to be added, the processor determines the normal state of the new identification point and adds an association relationship to the new identification point to associate it with the corresponding basic point or associated point. For example, when a temperature sensor is added to a nuclear power switchgear, the system sets its normal operating temperature range to 20-40℃ and associates it with the corresponding temperature alarm indicator. The temperature range is only an example and can be configured and adjusted according to the actual application scenario.

[0069] This invention also provides a computer-readable storage medium storing one or more modules (programs) that, when applied in a nuclear power plant, enable the nuclear power plant to execute embodiments of this invention. Figure 1 The instructions for the steps included in the inspection and alarm method for nuclear power equipment. The computer-readable storage medium can be any usable medium that a computer can store, or a data storage device such as a server or data center that integrates one or more usable media. The usable medium can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state drives (SSDs)).

[0070] The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of a nuclear power plant inspection and alarm method. The steps of the nuclear power plant inspection and alarm method, when executed by a processor, are as follows: First, the computer program controls the processor to acquire the status of multiple identification points. In this step, the identification points include basic points and associated points, with the status of each basic point associated with the status of at least one associated point. Basic points are the detection points corresponding to the operating parameters of the nuclear power equipment, and associated points are the detection points corresponding to indicating devices or protective devices. Taking a nuclear power switchgear intelligent inspection system as an example, the identification points acquired by the computer program control processor include the status of a digital tube voltmeter (point 1), a red power indicator light (point 2), a green closing indicator light (point 3), a yellow fault alarm light (point 4), a pointer-type ammeter (point 5), a temperature and humidity sensor (point 6), a circuit breaker control knob (point 7), and three sets of protection pressure plates (point 8). Points 1, 5, and 6 are basic points, while points 2, 3, 4, 7, and 8 are associated points. The computer program also specifies the association rules for each point; for example, point 2 must be lit when the voltage of point 1 is ≥361V.

[0071] Before acquiring the status of multiple identification points, the computer program also controls the processor to perform the following steps: Data from each identification point is collected and converted into a preset standardized data format. Specifically, the computer program is configured to collect data from 8 points per second, convert the digital tube / pointer data into digital signals, record the status of indicator lights / knobs as "on / off" or "On / Off" format, and store them in the system database.

[0072] Standardized format data is preprocessed to remove interfering data. Specifically, the computer program starts a data preprocessing program to automatically filter out jump values ​​on the digital display caused by electromagnetic interference, such as voltage jumps from 380V to 450V and then recovering.

[0073] Based on the preprocessed data, determine whether the association between the base points and related points is normal. If abnormal, output the abnormal information. For example, if the computer program detects that point 7 is "On" while point 3 is "Off", it directly marks it as "association abnormal" and outputs the corresponding abnormal information.

[0074] If the correlation is normal, the computer program controls the processor to determine the activation conditions for subsequent alarm mechanisms at all levels.

[0075] When the status of a basic point is abnormal and does not match the status of its corresponding associated node, the computer program controls the processor to activate the first-level alarm mechanism. For example, when the voltage of point 1 is detected to be >400V, the overvoltage plate of point 8 is "exited", and point 4 is "off", the computer program determines that the first-level alarm conditions are met.

[0076] When the status of a basic point is normal, but does not match the status of its corresponding associated node, the computer program controls the processor to activate a secondary alarm mechanism. For example, when point 2 is detected as "off" and the three-phase voltage of point 1 is ≥361V, the computer program determines that the secondary alarm conditions are met.

[0077] When the status of the basic points is normal, but the fluctuation of the corresponding operating parameters exceeds the preset threshold, the computer program controls the processor to activate a three-level alarm mechanism. For example, when the three-phase voltage deviation of point 1 is detected to be greater than 5V, the computer program determines that the three-level alarm conditions are met.

[0078] The priority of a Level 1 alarm mechanism is higher than that of a Level 2 alarm mechanism, and the priority of a Level 2 alarm mechanism is higher than that of a Level 3 alarm mechanism. The computer program checks the activation conditions in the order of "Level 1 → Level 2 → Level 3" priority, and stops checking the activation conditions of subsequent lower priority alarm mechanisms once any one of the alarm mechanisms is activated.

[0079] In a preferred embodiment, when a new identification point needs to be added, the computer program controls the processor to execute the normal state of the newly added identification point and add the association relationship of the newly added identification point to associate it with the corresponding basic point or associated point.

[0080] The Level 1 alarm mechanism includes: the computer program controlling the processor to activate the audible and visual alarm devices and the corresponding protection devices at the basic points, and to push the fault location information. Specifically, when the Level 1 alarm conditions are met, the computer program triggers the audible and visual alarm and emergency tripping, and pushes the fault location information.

[0081] The level-two alarm mechanism includes: a computer program controlling the processor to activate a designated alarm device, prompting the target object to conduct on-site verification, and recording the status of the corresponding point within a preset time period to generate a trend report. Specifically, when the level-two alarm conditions are met, the computer program issues a voice prompt, requiring maintenance personnel to conduct on-site verification and record the status of relevant points to generate a trend report.

[0082] The three-level alarm mechanism includes: a computer program controlling the processor to record fluctuation data, and generating a prompt message based on the fluctuation data when the corresponding identification point is reached during the next inspection. Specifically, when the three-level warning conditions are met, the computer program records the anomaly and highlights it, generating a corresponding prompt message during the next inspection.

[0083] When alarm mechanisms at all levels are activated, the computer program controls the processor to simultaneously acquire on-site images of the corresponding identification points for viewing. For example, if an alarm is triggered, the computer program activates the high-definition camera inside the cabinet to capture on-site footage for maintenance personnel to view and analyze.

[0084] Once the alarm mechanisms at each level are activated, the computer program controls the processor to receive maintenance records to update the equipment's historical database and reassess the status of the corresponding identified locations. Specifically, after handling the alarm, maintenance personnel upload the maintenance records to the system via the computer program, which then updates the equipment's historical database and reassesses the location status, completing closed-loop management.

[0085] The computer program stored on the aforementioned computer-readable storage medium enables efficient and intelligent inspection of nuclear power equipment, and can activate alarm mechanisms in stages according to different abnormal situations to ensure the safe and stable operation of nuclear power equipment.

[0086] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A method for alarming during inspection of nuclear power equipment, characterized in that, include: The status of multiple identification points is acquired, wherein the identification points include basic points and associated points, and the status of each basic point is associated with the status of at least one associated point; the basic points are detection points corresponding to the operating parameters of nuclear power equipment, and the associated points are detection points corresponding to indicating devices or protective devices; When the status of the basic point is abnormal and does not match the status of the corresponding associated node, a level one alarm mechanism is activated. When the status of the basic point is normal, but does not match the status of the corresponding associated node, a secondary alarm mechanism is activated; When the status of the basic point is normal, but the fluctuation of the corresponding operating parameters exceeds the preset threshold, a three-level alarm mechanism is activated; wherein the priority of the first-level alarm mechanism is higher than that of the second-level alarm mechanism, and the priority of the second-level alarm mechanism is higher than that of the third-level alarm mechanism.

2. The nuclear power equipment inspection and alarm method according to claim 1, characterized in that, When adding a new identification point, the normal status of the new identification point should be specified, and the association relationship of the new identification point should be added to associate it with the corresponding basic point or related point.

3. The nuclear power equipment inspection and alarm method according to claim 2, characterized in that, The first-level alarm mechanism includes: activating the audible and visual alarm device and the corresponding protection device at the basic point, and pushing the fault location; The secondary alarm mechanism includes: activating a designated alarm device, prompting the target object to conduct on-site verification, and recording the status of the corresponding location within a preset time period to generate a trend report; The three-level alarm mechanism includes: recording fluctuation data and generating a prompt message based on the fluctuation data when the corresponding identification point is inspected again.

4. The nuclear power equipment inspection and alarm method according to claim 2, characterized in that, The activation conditions for the first-level alarm mechanism, the second-level alarm mechanism, and the third-level alarm mechanism are determined in order of priority. Once any one of the alarm mechanisms is activated, the activation condition determination for subsequent lower-priority alarm mechanisms is stopped.

5. The nuclear power equipment inspection and alarm method according to claim 1, characterized in that, When the alarm mechanisms at each level are activated, on-site images of the corresponding identification points are collected simultaneously for viewing.

6. The nuclear power equipment inspection and alarm method according to claim 5, characterized in that, Once the alarm mechanisms at all levels are activated, maintenance records are received to update the equipment's historical database, and the status of the corresponding identification points is reassessed.

7. The nuclear power equipment inspection and alarm method according to any one of claims 1-6, characterized in that, Before obtaining the status of multiple identification points, the following steps are also included: Collect data from each of the identified points and convert the collected data into a preset standardized format. The standardized format data is preprocessed to remove interfering data; Based on the preprocessed data, determine whether the relationship between the base points and related points is normal. If it is abnormal, output the abnormal information. If everything is normal, proceed to determine the activation conditions for subsequent alarm mechanisms at all levels.

8. A system utilizing the nuclear power equipment inspection and alarm method according to any one of claims 1-7, characterized in that, include: The data acquisition module is used to acquire the status of multiple identification points, wherein the identification points include basic points and associated points, and the status of each basic point is associated with the status of at least one associated point; the basic points are detection points corresponding to the operating parameters of nuclear power equipment, and the associated points are detection points corresponding to indicating devices or protective devices; The alarm processing module is used to activate a level 1 alarm mechanism when the status of the basic point is abnormal and does not match the status of the corresponding associated node; to activate a level 2 alarm mechanism when the status of the basic point is normal but does not match the status of the corresponding associated node; and to activate a level 3 alarm mechanism when the status of the basic point is normal but the fluctuation range of the corresponding operating parameter exceeds a preset threshold. The level 1 alarm mechanism has a higher priority than the level 2 alarm mechanism, and the level 2 alarm mechanism has a higher priority than the level 3 alarm mechanism.

9. A computer device, comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, when the processor executes the computer program, it implements the steps of the nuclear power equipment inspection alarm method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the nuclear power equipment inspection and alarm method according to any one of claims 1 to 7.

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