Non-reset signal classification method and device, terminal equipment and storage medium

Abstract

The invention discloses a non-reset signal classification method and device, a terminal device and a storage medium, and belongs to the technical field of signal classification, and the method comprises the steps: carrying out the comprehensive consideration of the multi-dimensional information of a signal, more effectively distinguishing a long-term remaining signal from a short-term remaining signal, and improving the accuracy of signal classification. The continuous non-reset time of the non-reset signal, the association state of the maintenance signboard, the association state of the protection action event, the relationship between the non-reset signal and the newly added signal in the preset period, the classification mark and the alarm window are comprehensively considered; according to the invention, whether the current non-reset signal is a signal triggered by equipment abnormity or an abnormal signal triggered by manual operation can be accurately obtained, so that the accuracy of signal classification is improved, the troubleshooting efficiency is also improved, and the stable operation of the system can be better guaranteed. By implementing the method and the device, the problem that the classification accuracy of the non-reset signals is relatively low due to the fact that multi-dimensional information of the signals cannot be comprehensively considered in the prior art can be solved.

Description

Technical Field

[0001] This invention relates to the field of signal classification technology, and in particular to a method, apparatus, terminal device, and storage medium for classifying unrecovered signals. Background Technology

[0002] Unrecovered signals refer to signals that persist during equipment operation and have not returned to a normal state. These signals carry important information such as equipment operating status and event correlations. Accurate classification of unrecovered signals helps maintenance personnel quickly identify equipment anomalies and distinguish between normal operation and malfunctions, thereby improving equipment maintenance efficiency and ensuring stable system operation.

[0003] However, traditional non-return signal classification techniques often employ a single-dimensional judgment method. For example, they may distinguish between long-term and short-term legacy signals solely based on signal duration, or simply classify a signal as either triggered by equipment malfunction or human error based on whether it is within an alarm window. Traditional techniques lack comprehensive consideration of multi-dimensional signal information. For instance, they fail to consider the associated status of maintenance signs and protection action events, thus failing to effectively distinguish between long-term and short-term legacy signals. Furthermore, they cannot combine and analyze the duration of non-return signal failure, the associated status of maintenance signs and protection action events, its relationship with newly added signals within a preset period, classification markers, and alarm windows. Consequently, they cannot effectively distinguish between long-term and short-term legacy signals, nor can they effectively differentiate between current non-return signals triggered by equipment malfunction or human error. This results in low classification accuracy for non-return signals, low troubleshooting efficiency, and an inability to guarantee stable system operation. Summary of the Invention

[0004] This invention provides a method, apparatus, terminal device, and storage medium for classifying unrecovered signals. It comprehensively considers multi-dimensional signal information, more effectively distinguishing between long-term and short-term legacy signals. By comprehensively considering the duration of the unrecovered signal, the associated status of maintenance signs, the associated status of protection action events, its relationship with newly added signals within a preset period, classification markers, and alarm windows, it can accurately determine whether the current unrecovered signal is triggered by equipment malfunction or human error. This not only improves the accuracy of signal classification but also enhances fault diagnosis efficiency. It effectively solves the problems in existing technologies where the distinction between long-term and short-term legacy signals, and between current unrecovered signals triggered by equipment malfunction or human error, leads to low classification accuracy and low fault diagnosis efficiency.

[0005] One embodiment of the present invention provides a method for classifying unrecovered signals, comprising: Obtain the current non-reset signal; wherein, the non-reset signal includes: the duration of non-reset, the association status of the maintenance sign, and the association status of the protection action event; the association status includes: not associated or associated; If it is determined that the continuous non-reset time is greater than the preset reset time threshold, the associated status of the maintenance sign is not associated, and the associated status of the protection action event is not associated, then the non-reset signal is marked as a long-term legacy signal. If the continuous non-reset time is determined to be no greater than the preset reset time threshold, the associated status of the maintenance sign is associated, or the associated status of the protection action event is associated, then it is determined whether the non-reset signal is a newly added non-reset signal within the preset period. If not, when it is determined that the non-recovered signal has a classification mark, the non-recovered signal is marked as a short-term residual signal; when it is determined that the non-recovered signal does not have a classification mark, it is determined whether the non-recovered signal is in the current alarm window. If so, the non-recovered signal is marked as a signal triggered by a device malfunction; otherwise, the non-recovered signal is marked as an abnormal signal triggered by human operation. If so, when it is determined that the non-reset signal is within the current alarm window, the non-reset signal is marked as a signal triggered by a device malfunction; when it is determined that the non-reset signal is not within the current alarm window, the non-reset signal is marked as an abnormal signal triggered by human operation.

[0006] Preferably, the signal triggered by the equipment malfunction includes: a signal triggered after the protection device operates or a signal triggered after the equipment malfunctions; The step of marking the non-recovery signal as a signal triggered by a device malfunction includes: Determine whether the unrecovered signal belongs to the recovery signal library; wherein, the recovery signal library includes several signals that require manual recovery. If so, when the electrical quantity of the unreset signal is consistent with the preset fault electrical quantity, the unreset signal is marked as a signal triggered after the protection device operates; when the electrical quantity of the unreset signal is inconsistent with the preset fault electrical quantity but the signal characteristics of the unreset signal are consistent with the characteristics of historical protection signals, the unreset signal is marked as a signal triggered after the protection device operates; when the electrical quantity of the unreset signal is inconsistent with the preset fault electrical quantity and the signal characteristics of the unreset signal are inconsistent with the characteristics of historical protection signals, the unreset signal is marked as a signal triggered after a equipment failure. If not, the non-reset signal is marked as a signal triggered after a device malfunction; The preset fault electrical quantity is used to characterize the fault electrical quantity recorded by the fault recording device when a power system fault occurs. The historical protection signal characteristics refer to the signal type characteristics, duration characteristics, protection action time characteristics, and maintenance status characteristics of the non-reset signals generated after the protection device has been activated.

[0007] Preferably, the abnormal signals triggered by human operation include: signals triggered by human maintenance or signals accidentally deleted during human scheduling; The step of marking the non-recovery signal as an abnormal signal triggered by human operation includes: Determine whether the substation to which the non-recovery signal belongs has a maintenance sign posted; If so, the non-reset signal is marked as a signal triggered by human maintenance; If not, when it is determined that there is an alarm record of manually deleting the unrecovered signal or a display record of the unrecovered signal being displayed in the historical alarm window, the unrecovered signal is marked as a signal that was mistakenly deleted during manual scheduling; when it is determined that there is no alarm record of manually deleting the unrecovered signal or no display record of the unrecovered signal being displayed in the historical alarm window, a verification work order is generated to indicate that the unrecovered signal needs to be manually checked.

[0008] Preferably, after marking the non-reset signal as a signal triggered after the protection device operates, the method further includes: Based on the signal triggered after the protection device operates, a corresponding warning message is generated; wherein, the warning message includes: the non-reset signal is the signal triggered after the protection device operates, please reset.

[0009] Preferably, after marking the non-reset signal as a signal triggered after a device malfunction, the method further includes: Acquire the duration of non-reset corresponding to the signal triggered after a device malfunction; When the duration of non-return is not less than a preset time setting, a signal processing prompt message is generated to remind the dispatcher to process the non-return signal.

[0010] Preferably, after marking the non-reset signal as a signal triggered by human maintenance, the method further includes: Use the identification sign of the substation to which the signal triggered by human maintenance belongs as the associated identification sign; When it is determined that the signal triggered by human maintenance corresponding to the associated sign has been restored, a sign removal prompt message is generated to indicate that the associated sign can be removed.

[0011] Preferably, after marking the non-recovered signal as a signal mistakenly deleted during manual scheduling, the method further includes: Restore any signals that were accidentally deleted during manual scheduling to the current alarm window.

[0012] Based on the above method embodiments, the present invention provides corresponding apparatus embodiments.

[0013] An embodiment of the present invention provides a classification device for non-return signals, comprising: a non-return signal acquisition module and a signal classification module; The non-reset signal acquisition module is used to acquire the current non-reset signal; wherein, the non-reset signal includes: continuous non-reset time, the association status of the maintenance sign, and the association status of the protection action event; the association status includes: not associated or associated. The signal classification module is used to mark the non-reset signal as a long-term legacy signal when it is determined that the continuous non-reset time is greater than a preset reset time threshold, the associated status of the maintenance sign is not associated, and the associated status of the protection action event is not associated. If the continuous non-reset time is determined to be no greater than the preset reset time threshold, the associated status of the maintenance sign is associated, or the associated status of the protection action event is associated, then it is determined whether the non-reset signal is a newly added non-reset signal within the preset period. If not, when it is determined that the non-recovered signal has a classification mark, the non-recovered signal is marked as a short-term residual signal; when it is determined that the non-recovered signal does not have a classification mark, it is determined whether the non-recovered signal is in the current alarm window. If so, the non-recovered signal is marked as a signal triggered by a device malfunction; otherwise, the non-recovered signal is marked as an abnormal signal triggered by human operation. If so, when it is determined that the non-reset signal is within the current alarm window, the non-reset signal is marked as a signal triggered by a device malfunction; when it is determined that the non-reset signal is not within the current alarm window, the non-reset signal is marked as an abnormal signal triggered by human operation.

[0014] Based on the above method embodiments, the present invention provides corresponding terminal device embodiments.

[0015] Another embodiment of the present invention provides a terminal device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, it implements a method for classifying unrecovered signals as described in the above-described embodiments of the invention.

[0016] Based on the above method embodiments, the present invention provides corresponding storage medium embodiments.

[0017] Another embodiment of the present invention provides a storage medium, the computer-readable storage medium including a stored computer program, wherein, when the computer program is executed, it controls the device where the computer-readable storage medium is located to perform a method for classifying unrecovered signals as described in the above-described embodiments of the invention.

[0018] The following benefits can be obtained by implementing the present invention: This invention provides a method, apparatus, terminal device, and storage medium for classifying unreset signals. The invention can acquire the duration of the unreset signal, the association status of the maintenance sign, and the association status of protection action events. Only when the duration of the unreset signal exceeds a preset reset time threshold, the association status of the maintenance sign is unrelated, and the association status of the protection action event is unrelated, is the unreset signal marked as a long-term legacy signal. If the duration of the unreset signal does not exceed the preset reset time threshold, and the association status of the maintenance sign is associated or the association status of the protection action event is associated, then the classification of the unreset signal can be determined by whether it is a pre-set threshold. The system uses newly added unrecovered signals within a given period to determine whether they are short-term legacy signals, signals triggered by equipment malfunctions, or abnormal signals triggered by human operation. If the unrecovered signal is not newly added within the preset period, it can be identified as a short-term legacy signal by the presence of a classification marker, and can be distinguished as a signal triggered by equipment malfunctions or abnormal signals triggered by human operation by whether the unrecovered signal is within the current alarm window. If the unrecovered signal is newly added within the preset period, it can be directly distinguished as a signal triggered by equipment malfunctions or abnormal signals triggered by human operation based on whether the unrecovered signal is within the current alarm window. Compared with existing technologies, this invention can comprehensively consider multi-dimensional information of signals, more effectively distinguish between long-term and short-term legacy signals, and by comprehensively considering the duration of non-return signal, the associated status of maintenance signs, the associated status of protection action events, the relationship with newly added signals within a preset period, classification markers, and alarm windows, it can accurately determine whether the current non-return signal is triggered by equipment malfunction or human operation. This not only improves the accuracy of signal classification but also increases the efficiency of fault diagnosis, thus better ensuring the stable operation of the system. Attached Figure Description

[0019] Figure 1 This is a flowchart illustrating a method for classifying unrecovered signals according to an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the non-regression signal processing flow provided in another embodiment of the present invention.

[0021] Figure 3This is a schematic diagram of the structure of a classification device for unrecovered signals provided in an embodiment of the present invention. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figure 1 As shown, in order to address the problem that existing technologies cannot comprehensively consider multi-dimensional information of signals, cannot effectively distinguish between long-term and short-term legacy signals, and cannot effectively distinguish whether the current unrecovered signal is triggered by equipment malfunction or human operation, resulting in low classification accuracy of unrecovered signals, an embodiment of the present invention provides a method for classifying unrecovered signals, including: Step S1: Obtain the current non-reset signal; wherein, the non-reset signal includes: continuous non-reset time, the association status of the maintenance sign, and the association status of the protection action event; the association status includes: not associated or associated. Indicatively, a non-reset signal refers to an alarm signal generated during the operation of power grid equipment, resulting from an abnormality, operation, or work-related delay, and which fails to return to a normal state within a specified time. The characteristics of a non-reset signal are: It remains in an active state and has not been restored to normal through manual reset (such as pressing the reset button on the protection screen) or automatic reset mechanism; In this embodiment of the invention, in addition to acquiring the current non-reset signal, the continuous non-reset time of the non-reset signal (e.g., the duration of continuous non-reset from the first trigger to the present), the maintenance sign association status (e.g., whether it is associated with signs such as "maintenance" or "cold standby"), and the protection action event association status (e.g., whether it is related to the action of the protection device).

[0024] Step S2: When it is determined that the continuous non-reset time is greater than the preset reset time threshold, the association status of the maintenance sign is not associated, and the association status of the protection action event is not associated, the non-reset signal is marked as a long-term legacy signal. If the continuous non-reset time is determined to be no greater than the preset reset time threshold, the associated status of the maintenance sign is associated, or the associated status of the protection action event is associated, then it is determined whether the non-reset signal is a newly added non-reset signal within the preset period. If not, when it is determined that the non-recovered signal has a classification mark, the non-recovered signal is marked as a short-term residual signal; when it is determined that the non-recovered signal does not have a classification mark, it is determined whether the non-recovered signal is in the current alarm window. If so, the non-recovered signal is marked as a signal triggered by a device malfunction; otherwise, the non-recovered signal is marked as an abnormal signal triggered by human operation. If so, when it is determined that the non-reset signal is within the current alarm window, the non-reset signal is marked as a signal triggered by a device malfunction; when it is determined that the non-reset signal is not within the current alarm window, the non-reset signal is marked as an abnormal signal triggered by human operation.

[0025] The illustrative criteria for identifying long-term legacy signals (which must be met simultaneously) are as follows: The duration of non-recovery exceeds the preset recovery time threshold (e.g., 72 hours by default). The maintenance sign association status is: not associated (not triggered by maintenance). The associated status of the protection action event is: not associated (not a legacy of a protection action).

[0026] Specifically, after a substation renovation, there were some signals that had not been reset: old switch position signals. If these signals remained unreset for 10 days without any maintenance tags or protection action records, this invention can mark them as long-term residual signals and trigger the subsequent cleanup process.

[0027] For illustrative purposes, if the continuous non-reset time is not greater than the preset reset time threshold, the associated status of the maintenance sign is associated, or the associated status of the protection action event is associated, the process of determining whether it is a newly added signal within the preset period is initiated. If it is a non-new signal (short non-recovery time and not added within a preset period) and there is a classification mark, it means that the system is still processing the signal, and it is marked as a short-term legacy signal. Thus, the present invention achieves an effective distinction between long-term legacy signals and short-term legacy signals. If the signal is not newly added (short non-reset time and not added in this cycle) and there is no classification mark, then further determine whether the non-reset signal is in the current alarm window. If the signal is in the current alarm window, mark it as "equipment abnormal trigger signal" (such as circuit breaker control circuit disconnection); if the signal is not in the alarm window, mark it as "human operation triggered abnormal signal" (such as the signal blocked by the maintenance tag).

[0028] If it is a newly added signal (newly triggered within this cycle), then directly determine whether the unrecovered signal is in the current alarm window. If the signal is in the current alarm window, mark it as "device abnormal trigger signal" (such as equipment real-time fault alarm); if the signal is not in the alarm window, mark it as "human operation triggered abnormal signal" (such as scheduling accidental deletion or maintenance shielding).

[0029] For example, if a signal does not exceed the preset reset time threshold, but has no classification mark and is not in the alarm window, this invention judges it as an abnormal signal triggered by human operation. Traditional technology may misjudge it as normal because it only looks at the time not exceeding the limit, or misjudge it as a fault because it is not associated with the alarm window, which will lead to the waste of subsequent operation and maintenance resources.

[0030] Through the above-mentioned multi-dimensional and hierarchical classification method, this invention achieves accurate identification of non-recovery signals, which not only avoids the problems of missing real faults or falsely reporting normal operations in traditional technologies, but also optimizes the operation and maintenance process through historical classification marking and analysis of new signals, fundamentally improving the efficiency of fault diagnosis and the reliability of system operation.

[0031] For step S1, in a preferred embodiment, the non-recovery signal is a core characteristic of power grid equipment malfunctions and operational / work-related issues, and its main sources can be: (1) Equipment abnormality triggering: alarm signals directly generated by equipment failure or abnormal operation (such as circuit breaker control circuit disconnection, overload alarm). (2) Equipment maintenance trigger: When the equipment is under maintenance or there is related work on site, the work signal will be sent to the dispatch real-time alarm window. In order to avoid the work signal on site from interfering with the dispatch monitoring, the dispatch adopts the method of hanging signs such as "Man on duty", "Maintenance" and "Cold standby" to shield the equipment maintenance signal.

[0032] (3) Residual protection action: This refers to the signal that the associated alarm or status signal of the protection device has not returned to the normal state within the specified time after the protection device has acted due to a fault or abnormality. This type of signal usually reflects that the protection device or safety device has failed to reset correctly or that there is a potential abnormality, which may affect the safe operation of the power grid. This type of signal needs to be manually reset. Local reset can be performed by pressing the "Reset Button" on the protection panel or device panel, or remote reset can be performed by sending a reset command through the monitoring system.

[0033] (4) Residual signals: Invalid signals left over from equipment upgrades or signal rectification. These signals have no actual monitoring significance but occupy system resources for a long time.

[0034] Failure to process non-return signals in a timely manner will result in the following consequences: (1) Equipment status misjudgment: failure to reset signal masking the true status of equipment. For example, failure to reset the action signal of protection device may cause the device to lock up and be unable to respond to subsequent faults; (2) Power grid operation risk: If equipment malfunctions are not identified in time, they may trigger a chain of failures and threaten the stable operation of the power grid.

[0035] (3) Waste of resources: Long-term accumulation of invalid signals interferes with the analytical capabilities of the monitoring system.

[0036] Therefore, in order to accurately classify the non-reset signals, in this step, the present invention can obtain the duration of non-reset, the associated status of the maintenance sign, and the associated status of the protection action event to classify the non-reset signals in more detail.

[0037] For example, when the signal fails to return for more than a threshold time and is not associated with maintenance signs or protection action events, this invention can directly determine it as a long-term residual signal, avoiding the problem in traditional technology where the signal is misjudged as a real-time fault due to a single time dimension.

[0038] For step S2, in a preferred embodiment, the signal triggered by the equipment malfunction includes: a signal triggered after the protection device operates or a signal triggered after the equipment malfunctions; therefore, when marking the non-recovery signal as a signal triggered by the equipment malfunction, the specific classification process is as follows: The step of marking the non-recovery signal as a signal triggered by a device malfunction includes: Determine whether the unrecovered signal belongs to the recovery signal library; wherein, the recovery signal library includes several signals that require manual recovery. If so, when the electrical quantity of the unreset signal is consistent with the preset fault electrical quantity, the unreset signal is marked as a signal triggered after the protection device operates; when the electrical quantity of the unreset signal is inconsistent with the preset fault electrical quantity but the signal characteristics of the unreset signal are consistent with the characteristics of historical protection signals, the unreset signal is marked as a signal triggered after the protection device operates; when the electrical quantity of the unreset signal is inconsistent with the preset fault electrical quantity and the signal characteristics of the unreset signal are inconsistent with the characteristics of historical protection signals, the unreset signal is marked as a signal triggered after a equipment failure. If not, the non-reset signal is marked as a signal triggered after a device malfunction; The preset fault electrical quantity is used to characterize the fault electrical quantity recorded by the fault recording device when a power system fault occurs. The historical protection signal characteristics refer to the signal type characteristics, duration characteristics, protection action time characteristics, and maintenance status characteristics of the non-reset signals generated after the protection device has been activated.

[0039] Specifically, the first step is to determine whether it belongs to the reset signal library. A reset signal library is a database containing signals that require manual reset, such as the signals from protective device actions. Reset signal libraries are typically created using signal name keywords or types.

[0040] In this embodiment of the invention, information such as signal name and type can be extracted from the unreset signal and matched with the reset signal library. If the signal belongs to an entry in the library, the protection action trigger signal judgment is initiated; otherwise, it is directly determined to be a device fault trigger signal.

[0041] If it belongs to the recovery signal library, the present invention can perform secondary classification based on electrical quantities and historical characteristics. First, the electrical quantities are compared with the preset fault electrical quantities. For example, the preset fault electrical quantities refer to the characteristic quantities such as current, voltage change value, and phase angle difference recorded by the fault recording device when the power system is faulty.

[0042] If they match, the signal is marked as triggered after the protection device operates, such as a signal that has not been reset after the protection trips. If the electrical quantities are inconsistent, further compare the characteristics of historical protection signals; for example, the signal type characteristics in the historical protection signal characteristics refer to whether it belongs to a first-level signal (overall accident) or a second-level signal (protection device operation). The comparison of duration characteristics refers to whether the non-return time is consistent with the pattern of non-return duration of historical protection signals; The comparison of protection action time characteristics refers to whether there is a temporal correlation between the signal action time and the historical protection device action time; The comparison of maintenance sign status characteristics refers to whether there are any identical maintenance sign associations.

[0043] Therefore, if it is consistent with the characteristics of historical protection signals, it can be marked as a signal triggered after the protection device operates, such as a signal that has not been reset after the automatic backup power supply switching device operates. If there is no direct fault recording, but it conforms to historical patterns. If the signal does not match the characteristics of historical protection signals, it can be marked as a signal triggered after a device malfunction, such as an alarm caused by a device malfunction, which is not directly triggered by a protection action.

[0044] Furthermore, if the unreset signal does not belong to the reset signal library, it can be directly marked as a device fault trigger signal. It is understandable that the device fault trigger signal does not require manual reset, as it is directly triggered by device abnormalities (such as control loop disconnection or mechanical failure) and is not included in the reset signal library.

[0045] It is understood that the embodiments of the present invention use dual verification of electrical quantities and historical characteristics to avoid misjudging non-protection action signals as legacy protection signals. For example, a signal may belong to the reset signal library, but its electrical quantity is inconsistent with the fault waveform and its historical characteristics do not match. Ultimately, it is determined to be a device fault signal, thus avoiding misjudgment as a protection action and resulting in delays in handling.

[0046] In a preferred embodiment, the abnormal signal triggered by human operation includes: a signal triggered by human maintenance or a signal accidentally deleted during human scheduling; therefore, when marking the unrecovered signal as an abnormal signal triggered by human operation, the specific classification process includes: The step of marking the non-recovery signal as an abnormal signal triggered by human operation includes: Determine whether the substation to which the non-recovery signal belongs has a maintenance sign posted; If so, the non-reset signal is marked as a signal triggered by human maintenance; If not, when it is determined that there is an alarm record of manually deleting the unrecovered signal or a display record of the unrecovered signal being displayed in the historical alarm window, the unrecovered signal is marked as a signal that was mistakenly deleted during manual scheduling; when it is determined that there is no alarm record of manually deleting the unrecovered signal or no display record of the unrecovered signal being displayed in the historical alarm window, a verification work order is generated to indicate that the unrecovered signal needs to be manually checked.

[0047] Specifically, when a non-recovery signal is marked as an abnormal signal triggered by human operation, it will be further distinguished as either triggered by human maintenance or accidentally deleted by human scheduling. The specific process is as follows: First, determine whether the substation to which the non-return signal belongs has a maintenance sign; maintenance signs are signs such as "Manned," "Under Maintenance," and "Cold Standby" used to shield maintenance signals.

[0048] This invention can locate the status of the identification tags of the plant / bay / equipment to which the unrecovered signal belongs. If a corresponding tag exists, it will proceed to the manual maintenance trigger signal marking process; otherwise, it will proceed to the judgment process of the dispatching mistakenly deleted signal. If a maintenance sign is displayed, it is marked as a human-triggered maintenance signal. For example, when a "Maintenance" sign is displayed in a 10kV bay of a substation, the "grounding switch position abnormal" signal of the equipment in that bay is sent up due to maintenance work, but is blocked by the sign and not displayed in the alarm window. In this case, it can be marked as a maintenance trigger signal, and a dynamic association can be established with the sign in the future.

[0049] If no maintenance sign is displayed, the present invention further determines whether it is a signal mistakenly deleted by the dispatcher. Specifically: If there is an alarm record of manually deleting the signal, or if there is a display record of the signal in the historical alarm window, then it is marked as a signal accidentally deleted by human scheduling. If there is no manually deleted alarm record for the unrecovered signal or no display record for the unrecovered signal in the historical alarm window, a manual verification work order is generated. It is understood that when there are no deletion records or no historical alarm records, the signal may be an invalid existing signal (never alarmed and never deleted) or the signal may not have been sent or the record may have been lost due to a system anomaly. In such cases, this invention can generate a manual verification work order, which displays basic signal information and missing record items (such as no deleted logs or no historical alarms) to request the dispatcher to manually verify the signal's validity.

[0050] In a preferred embodiment, after marking the non-reset signal as a signal triggered after the protection device actuates, the method further includes: Based on the signal triggered after the protection device operates, a corresponding warning message is generated; wherein, the warning message includes: the non-reset signal is the signal triggered after the protection device operates, please reset.

[0051] As an illustration, after marking the non-reset signal as a protection device action signal, the present invention can immediately trigger a forced reset reminder to avoid the system refusing to operate due to protection device malfunction.

[0052] In a preferred embodiment, after marking the non-reset signal as a signal triggered after a device malfunction, the method further includes: Acquire the duration of non-reset corresponding to the signal triggered after a device malfunction; When the duration of non-return is not less than a preset time setting, a signal processing prompt message is generated to remind the dispatcher to process the non-return signal.

[0053] Indicatively, this invention can trigger a processing reminder based on the duration of the equipment fault signal's failure to return. First, the duration of the signal's failure to return (e.g., the time from the first alarm to the present) is obtained, and then compared with a preset time setting (default 5 minutes, configurable). If the threshold is exceeded, a prompt message can be generated, such as: "Signal has not returned for 5 minutes, please handle."

[0054] In a preferred embodiment, after marking the non-reset signal as a signal triggered by human maintenance, the method further includes: Use the identification sign of the substation to which the signal triggered by human maintenance belongs as the associated identification sign; When it is determined that the signal triggered by human maintenance corresponding to the associated sign has been restored, a sign removal prompt message is generated to indicate that the associated sign can be removed.

[0055] Indicatively, once a maintenance trigger signal is marked, it can be automatically associated with the identification plate of the corresponding substation / bay / equipment (such as "Maintenance" or "Cold Standby"). When the plate is removed, an alarm message can be generated: the signal associated with the plate has been reset, and the plate removal is allowed.

[0056] Specifically, a "Maintenance" sign is hung on a 10kV bay, and the corresponding "Abnormal Switch Position" signal is marked as the maintenance trigger signal and associated with the sign. After maintenance is completed, the signal resets. When the sign is removed, a prompt is generated: "The signal associated with the 10kV bay's maintenance sign has been reset; removal is permitted." This prevents sign removal if the signal has not reset, avoiding interference with monitoring by working signals during maintenance and ensuring that equipment malfunctions after maintenance are not monitored.

[0057] In a preferred embodiment, after marking the non-recovered signal as a signal mistakenly deleted during manual scheduling, the method further includes: Signals that were accidentally deleted during manual dispatching will be restored to the current alarm window to remind dispatchers to handle them.

[0058] As an illustration, after a signal is marked as accidentally deleted, it can be restored from the historical data in the centralized database to the real-time alarm window; and after restoration, an alert is generated: the signal was accidentally deleted, has been restored, please handle it.

[0059] Specifically, when a dispatcher accidentally deletes the "main transformer gas alarm" signal, the system detects the deletion and automatically restores the signal to the alarm window, then sends a warning. After restoration, the signal can be reclassified as an equipment anomaly signal, and a second warning can be sent if the restoration period exceeds 5 minutes, preventing missed detection of internal transformer faults.

[0060] like Figure 2 The diagram shows the processing flow for non-recovered signals. Starting with a centralized database scan, the flow follows a logical chain of "existing signal assessment → new signal identification → alarm window comparison → classification and handling" to achieve full lifecycle management of non-recovered signals. The specific process is as follows: Step 1: Periodically scan all signals in the centralized database that have not been reset. Efficiency can be improved by using the periodic scanning unit of a signal classification module to perform distributed scanning by plant and substation. The status of the signals includes the duration of non-reset, the status of maintenance sign association, the status of protection action association, and other attributes. Step 2: Determine if the signal is a legacy signal (i.e., a long-term legacy signal): Judgment conditions (must be met simultaneously): Duration of non-return ≥ 72 hours (configurable); No maintenance sign is associated with it; No protective action event association.

[0061] If all conditions are met, it is considered an existing signal and marked as a historical legacy signal (i.e., a long-term legacy signal), triggering the existing signal cleanup module. After confirmation by the dispatcher, it is deleted. If it is not an existing signal, proceed to the next step of the new signal judgment process; Step 3: Determine if the signal is a newly added, non-recovered signal: The signal can be identified by the "is_new" field in the centralized database (1 for new, 0 for historical). If it is a new signal, proceed to the alarm window for comparison (step 4). If it is not a new signal and the non-recovery time is <72 hours, check if the system already has processing records (e.g., whether there is a classification label). If so, mark the non-recovery signal as a short-term legacy signal and the process ends. If not, proceed to step 4.

[0062] Step 4: Determine if the signal exists in the real-time alarm window: If present, it may be a residual protection signal or an abnormal device signal (proceed to step 5). If it does not exist, it may be a maintenance trigger signal or a signal accidentally deleted by the dispatcher (proceed to step 6).

[0063] Step 5: Determine if the signal is a residual protection signal or an abnormal equipment signal (signal in the alarm window). Conditions for protecting legacy signal identification (one of the following must be met): It belongs to the reset signal library (protection-related signals that need to be manually reset), and the electrical quantity is consistent with the preset fault electrical quantity; It belongs to the reset signal library. The electrical quantities are inconsistent, but the signal characteristics are consistent with the characteristics of historical protection signals (such as type, duration, and protection action sequence). Equipment abnormal signal identification conditions: It does not belong to the reset signal library, or it belongs to the reset signal library but the electrical quantity is inconsistent with the historical characteristics.

[0064] After identifying residual protection signals or abnormal equipment signals, the following procedures should be followed: To protect residual signals: immediately send out a "Please restore" warning until the signal is restored; For abnormal equipment signals: count the unacknowledged time, and if the time exceeds the threshold (e.g., 5 minutes), issue a "long period of no processing" warning; Step 6: Determine whether the signal is a maintenance trigger signal or a signal mistakenly deleted by the dispatcher (signal outside the alarm window). Maintenance trigger signal identification conditions: The plant or station has a "Manned" sign, or the intervals / equipment have "Cold Standby" or "Under Maintenance" signs.

[0065] Conditions for identifying accidentally deleted dispatch signals (must be met simultaneously): This is not a maintenance trigger signal; The scheduling operation log contains information about deleting the signal; The signal was previously displayed in the historical alarm window.

[0066] After identifying the maintenance trigger signal or the signal mistakenly deleted by the dispatcher, the following measures are taken: For maintenance trigger signals: dynamically linked to the signboard, the signal must be reset before the signboard is removed (the signboard cannot be removed if it has not been reset). For signals accidentally deleted during scheduling: the system will automatically restore the alarm window, push a "restored" warning, and re-enter the protection legacy / equipment anomaly judgment.

[0067] Therefore, this invention can achieve signal restoration and alert disappearance (all abnormal signal branches), for example: If the residual signal is restored, the restoration reminder will disappear; If the device malfunction signal is restored, the unconfirmed time will be reset to zero and the reminder will disappear. If the maintenance trigger signal is reset, the license plate can be removed and the reminder will disappear.

[0068] Therefore, this invention can bind legacy signals with reset reminders, bind equipment malfunction signals with time reminders to ensure timely processing; link maintenance trigger signals with signage, and automatically restore accidentally deleted signals, forming a full-process management of identification-processing-closed loop.

[0069] Specifically, when the non-reset signal is a protection legacy signal (i.e., a signal triggered after the protection device has acted), then: If a "distance protection action" signal exists in the alarm window of a certain line, belongs to the reset signal library, and the electrical quantities of the fault recording waveform are consistent, it is marked as a protection legacy signal, and a reset reminder is immediately given. The reminder disappears after the reset.

[0070] When the non-reset signal is triggered after a device malfunction, then: If the unconfirmed time exceeds 5 minutes, the dispatcher will be notified to process the unrestored signal so that the dispatcher can arrange for maintenance personnel to check the equipment or circuit. After the repair is completed, the signal will be restored and the notification will disappear.

[0071] When the non-reset signal is triggered by manual maintenance, then: If a substation displays a "Maintenance" sign and the "Grounding Switch Position Abnormal" signal for that bay is not displayed in the alarm window, it is marked as a signal triggered by human maintenance and associated with the corresponding sign. The sign can be removed after the maintenance is completed and the signal returns to normal.

[0072] When the unrecovered signal is a signal mistakenly deleted during manual scheduling, then: If a dispatcher mistakenly deletes the "main transformer oil temperature too high" signal, and this signal has a deletion record and was previously triggered, this invention can automatically restore it to the alarm window, reclassify it as an equipment abnormality signal, and prompt for handling after more than 5 minutes of unconfirmed time.

[0073] In summary, this invention can integrate multi-dimensional features such as time, signage, protective actions, and electrical quantities, thereby improving the classification accuracy of unrecovered signals; and through mechanisms such as signage constraints, accidental deletion recovery, and mandatory reminders, it can eliminate the risk of signal omission.

[0074] In a preferred embodiment, the present invention can also construct a centralized unrecovered signal library with a three-level architecture of plant-bay-equipment, integrate unrecovered signals from the entire network, support global retrieval and visualization, and unify the management of signals across plants to avoid the risk of missed detection.

[0075] Furthermore, it can automatically identify and mark existing signals, triggering the existing signal clearing process. Through a two-person confirmation clearing process and a recycle bin mechanism, the proportion of invalid signals is continuously reduced, freeing up storage resources.

[0076] In a preferred embodiment, the present invention can be applied to a non-return signal processing system, which relies on an OCS (Operation Control System). The non-return signal processing system includes a centralized non-return signal library module, a signal classification module, a signal-signal association module, a sign removal mandatory verification module, an erroneous deletion tracing module, and a stock signal cleanup module.

[0077] The centralized unrecovered signal library module is used to collect unrecovered signal data from the databases of each substation in real time and establish a unified view of the entire area according to the three-level architecture of substation-bay-equipment.

[0078] The centralized unreset signal library module is the core data hub of the system, designed to integrate signal data scattered across the OCS systems of various substations. Through standardized processing and hierarchical classification, it constructs a unified view covering the entire network. Its core functions include: (1) Data aggregation: Real-time / timed collection of unreset signal data from the signal database of each substation. The OCS signal database of each substation includes basic information such as signal point number, substation name, signal name, current value (action, reset), last refresh time, whether it is inverted, and associated equipment.

[0079] (2) Structured storage: Signals are organized in a three-level architecture of plant-station-bay-equipment. The plant level is used to display the statistics of unrestored signals in the whole station; the bay level divides signals according to electrical bays and supports filtering by voltage level; the equipment level displays the specific unrestored signals associated with the equipment.

[0080] (3) Dynamic updates: synchronization signal status (such as reset, addition), action time and associated attributes (4) Visualization support: Provides hierarchical search, filtering and alarm priority sorting functions. The centralized unrecovered signal library module not only solves the problem of data silos, but also provides a high-quality data foundation for upper-level functions such as intelligent verification and risk warning.

[0081] The signal classification module, through multi-dimensional data analysis and rule engine, combined with real-time data and power grid status, realizes intelligent classification and handling of unrecovered signals. It includes a timed scanning unit, an existing signal judgment unit, a new unrecovered signal detection unit, a real-time alarm window comparison unit, a protection legacy identification unit, an equipment anomaly identification unit, a maintenance trigger identification unit, and a scheduling accidental deletion identification unit.

[0082] (1) Timing scanning unit: Each cycle (configurable from 1 to 30 minutes) performs a full scan of the centralized database, scanning signals with values ​​of action or non-return. To improve scanning efficiency, distributed tasks can be used to scan by plant / site segment (e.g., 100 plants / sites divided into 10 segments).

[0083] (2) Inventory signal judgment unit Judgment logic: Signals that have not been reset for ≥72 hours (time threshold is configurable, default is 3 days) and have no associated maintenance signs (such as signs indicating that someone is on duty, maintenance, or cold standby, excluding reasonable unreset signals caused by maintenance) and have no associated protection action events within the signal action cycle are judged as historical legacy signals.

[0084] (3) Add a non-recovery signal detection unit Incremental identification mechanism: Add an "is_new" field (0 or 1) to the centralized unrecovered signal database, and mark newly inserted signals within the scan period as 1.

[0085] (4) Real-time alarm window comparison unit Compare the newly added unreset signal with the signals in the real-time alarm window. If the newly added signal exists in the real-time alarm window, it indicates that the unreset signal may be an abnormal signal of the equipment or a signal left by the protection. If the newly added signal is not present in the real-time alarm window, it may be due to an accidental deletion of an abnormal signal or a signal triggered by maintenance work.

[0086] (5) Inspection trigger identification unit For newly added, unreset signals that do not exist in the real-time alarm window, the power grid topology service is invoked based on the associated equipment, bay, and substation. If one of the following conditions is met, the signal is considered a maintenance trigger signal: The signal station has a "Manned" sign hanging on it; The signal bay or equipment has a "cold standby" or "under maintenance" sign.

[0087] (6) Scheduling error deletion identification unit For newly added, unrecovered signals that do not exist in the real-time alarm window, the following method is used to determine if the newly added, unrecovered signal is an abnormal signal that was mistakenly deleted by the scheduler: This is not a maintenance trigger signal; Review the dispatch signal operation records to determine if any alarm records for that signal have been manually deleted. Check the signal alarm records to verify whether the signal has ever been displayed in the real-time alarm window.

[0088] (7) Protecting legacy identification units Typical characteristics of residual protection signals: directly triggered by the action of protection devices; divided into primary signals (fault signals such as general fault signals and interval fault signals) and secondary signals (abnormal signals such as protection device action signals or safety automatic device action signals); require manual reset (local reset or remote reset).

[0089] For newly added unreset signals appearing in the real-time alarm window, determine whether the newly added unreset signals are legacy protection signals using the following method: Establish a database of legacy protection signals that require manual resetting: Extract keywords from legacy protection signals to create a signal database. If the signal name contains the corresponding keywords, it is initially identified as a legacy protection signal, and further judgment is made based on the fault recording identification method.

[0090] Fault recording identification method: Call the protection information system. If the substation to which the signal belongs has a corresponding protection action recording record within the cycle, it proves whether the newly added signal is a protection legacy signal; if there is no protection action recording record, further judgment is made based on the historical signal identification method.

[0091] Historical signal identification method: Call the OCS signal database. If the substation to which the signal belongs has a bus undervoltage signal within the period, it indicates that the substation is undervoltage due to reasons such as power grid fault. Therefore, the relevant signals generated by the substation's safety automatic devices, such as the automatic transfer switch, should also be included in the scope of protection legacy signals.

[0092] (8) Equipment anomaly identification unit For newly added, unrecovered signals appearing in the real-time alarm window, if the following conditions are met, it is considered a device malfunction signal: The signal does not belong to the relevant signals in the legacy signal library that require manual reset protection; There were no corresponding protection action records at the substation to which the signal belonged within the cycle; There was no corresponding busbar undervoltage record at the substation to which the signal belonged during the period; The abnormal signal alert module is used to remind dispatchers to promptly handle abnormal signals and protection-related signals that have not been processed for a long time. For abnormal signals of equipment, the module counts the duration of unacknowledged signals. When the duration of unacknowledged signals exceeds a set time (usually set to 5 minutes), an alert is automatically pushed: "Unrecovered signal has not been acknowledged for a long time. Please handle it as soon as possible!" For residual protection signals, once the system identifies a residual protection signal, it will immediately push an early warning: "The unreset signal is a residual protection signal. Please reset it as soon as possible!" This reminder, provided by the scheduling abnormal signal module in the real-time alarm window, will only disappear when the signal is reset, thus preventing scheduling from missing abnormal situations.

[0093] The existing signal cleanup module is used to remove legacy signals. After the system identifies a signal as a legacy signal, it marks the signal. After confirmation by two dispatchers, the cleanup process is triggered to ensure consistency between the centralized database and the source station database. The manual confirmation interface displays information such as signal name, duration, associated device, and historical events, and provides dispatchers with options such as immediate processing (triggering deletion and logging), adding to the whitelist (marking as a protected signal and preventing further scanning), and delayed processing (re-evaluation after 24 hours). To avoid misprocessing, an operation audit function (recording the time and operator of the deletion operation) and a recycle bin mechanism (deleted signals are temporarily stored for 30 days and support rapid recovery) are set up.

[0094] The signal-signal association module is used to establish a dynamic binding relationship between maintenance-triggered non-reset signals and signs such as "Manned" and "Maintenance". For example, based on the associated equipment and substation information of the non-reset signal, the power grid topology can be called to scan the relevant signs of the corresponding substation. The binding trigger condition is set as follows: the signal is a maintenance-triggered non-reset signal and the associated sign of the substation to which the signal belongs is "Manned" or the associated sign of the equipment is "Maintenance" or "Cold Standby". If the trigger condition is met, the non-reset signal is associated with the sign.

[0095] The mandatory sign removal verification module is used to prohibit sign removal operations when there is a bound unreturned signal on the sign. The sign removal constraint implementation logic is that the sign removal operation needs to acquire an exclusive lock on the signal and the sign. All sign removal attempts (including failures) are recorded in the audit log.

[0096] The accidental deletion tracing and recovery module is used to automatically restore the accidentally deleted signal to the real-time alarm window and push an alert: "The unrestored signal was accidentally deleted and has been restored."

[0097] like Figure 3 As shown, based on the embodiments of the various classification methods for non-regressed signals described above, the present invention provides corresponding device embodiments; An embodiment of the present invention provides a classification device for non-return signals, comprising: a non-return signal acquisition module and a signal classification module; The non-reset signal acquisition module is used to acquire the current non-reset signal; wherein, the non-reset signal includes: continuous non-reset time, the association status of the maintenance sign, and the association status of the protection action event; the association status includes: not associated or associated. The signal classification module is used to mark the non-reset signal as a long-term legacy signal when it is determined that the continuous non-reset time is greater than a preset reset time threshold, the associated status of the maintenance sign is not associated, and the associated status of the protection action event is not associated. If the continuous non-reset time is determined to be no greater than the preset reset time threshold, the associated status of the maintenance sign is associated, or the associated status of the protection action event is associated, then it is determined whether the non-reset signal is a newly added non-reset signal within the preset period. If not, when it is determined that the non-recovered signal has a classification mark, the non-recovered signal is marked as a short-term residual signal; when it is determined that the non-recovered signal does not have a classification mark, it is determined whether the non-recovered signal is in the current alarm window. If so, the non-recovered signal is marked as a signal triggered by a device malfunction; otherwise, the non-recovered signal is marked as an abnormal signal triggered by human operation. If so, when it is determined that the non-reset signal is within the current alarm window, the non-reset signal is marked as a signal triggered by a device malfunction; when it is determined that the non-reset signal is not within the current alarm window, the non-reset signal is marked as an abnormal signal triggered by human operation.

[0098] It should be noted that the device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules; they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Furthermore, in the accompanying drawings of the device embodiments provided by this invention, the connection relationships between modules indicate that they have communication connections, which can be specifically implemented as one or more communication buses or signal lines. Those skilled in the art can understand and implement this without any creative effort.

[0099] Those skilled in the art will understand that, for convenience and brevity, the specific working process of the device described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0100] Based on the above embodiments of various classification methods for non-recovery signals, the present invention provides corresponding embodiments for terminal devices.

[0101] One embodiment of the present invention provides a terminal device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, it implements a method for classifying unrecovered signals as described in any embodiment of the present invention.

[0102] The terminal device may be a desktop computer, laptop, handheld computer, or cloud server, etc. The terminal device may include, but is not limited to, a processor and a memory.

[0103] The processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor. The processor is the control center of the terminal device, connecting all parts of the terminal device via various interfaces and lines.

[0104] The memory can be used to store the computer program. The processor implements various functions of the terminal device by running or executing the computer program stored in the memory and calling data stored in the memory. The memory may mainly include a program storage area and a data storage area. The program storage area may store the operating system, at least one application program required for a function, etc.; the data storage area may store data created based on the use of the mobile phone, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as hard disk, RAM, plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, at least one disk storage device, flash memory device or other volatile solid-state storage device.

[0105] Based on the above embodiments of various classification methods for non-regressed signals, the present invention provides corresponding embodiments for storage media.

[0106] One embodiment of the present invention provides a storage medium including a stored computer program, wherein, when the computer program is executed, it controls the device where the computer-readable storage medium is located to execute a method for classifying non-regressed signals as described in any embodiment of the present invention.

[0107] The storage medium is a computer-readable storage medium, and the computer program is stored in the computer-readable storage medium. When executed by a processor, the computer program can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable file, or some intermediate form. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording media, USB flash drive, portable hard drive, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content included in the computer-readable medium can be appropriately added or removed according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electrical carrier signals and telecommunication signals.

[0108] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A method for classifying unrecovered signals, characterized in that, include: Obtain the current non-reset signal; wherein, the non-reset signal includes: the duration of non-reset, the association status of the maintenance sign, and the association status of the protection action event; the association status includes: not associated or associated; If it is determined that the continuous non-reset time is greater than the preset reset time threshold, the associated status of the maintenance sign is not associated, and the associated status of the protection action event is not associated, then the non-reset signal is marked as a long-term legacy signal. If the continuous non-reset time is determined to be no greater than the preset reset time threshold, the associated status of the maintenance sign is associated, or the associated status of the protection action event is associated, then it is determined whether the non-reset signal is a newly added non-reset signal within the preset period. If not, when it is determined that the non-recovered signal has a classification mark, the non-recovered signal is marked as a short-term residual signal; when it is determined that the non-recovered signal does not have a classification mark, it is determined whether the non-recovered signal is in the current alarm window. If so, the non-recovered signal is marked as a signal triggered by a device malfunction; otherwise, the non-recovered signal is marked as an abnormal signal triggered by human operation. If so, when it is determined that the non-reset signal is within the current alarm window, the non-reset signal is marked as a signal triggered by a device malfunction; when it is determined that the non-reset signal is not within the current alarm window, the non-reset signal is marked as an abnormal signal triggered by human operation.

2. The method for classifying unrecovered signals as described in claim 1, characterized in that, The signals triggered by the equipment malfunction include: signals triggered after the protection device is activated or signals triggered after the equipment malfunctions; The step of marking the non-recovery signal as a signal triggered by a device malfunction includes: Determine whether the unrecovered signal belongs to the recovery signal library; wherein, the recovery signal library includes several signals that require manual recovery. If so, when the electrical quantity of the unreset signal is consistent with the preset fault electrical quantity, the unreset signal is marked as a signal triggered after the protection device operates; when the electrical quantity of the unreset signal is inconsistent with the preset fault electrical quantity but the signal characteristics of the unreset signal are consistent with the characteristics of historical protection signals, the unreset signal is marked as a signal triggered after the protection device operates; when the electrical quantity of the unreset signal is inconsistent with the preset fault electrical quantity and the signal characteristics of the unreset signal are inconsistent with the characteristics of historical protection signals, the unreset signal is marked as a signal triggered after a equipment failure. If not, the non-reset signal is marked as a signal triggered after a device malfunction; The preset fault electrical quantity is used to characterize the fault electrical quantity recorded by the fault recording device when a power system fault occurs. The historical protection signal characteristics refer to the signal type characteristics, duration characteristics, protection action time characteristics, and maintenance status characteristics of the non-reset signals generated after the protection device has been activated.

3. The method for classifying unrecovered signals as described in claim 2, characterized in that, The abnormal signals triggered by human operation include: signals triggered by human maintenance or signals accidentally deleted during human scheduling; The step of marking the non-recovery signal as an abnormal signal triggered by human operation includes: Determine whether the substation to which the non-recovery signal belongs has a maintenance sign posted; If so, the non-reset signal is marked as a signal triggered by human maintenance; If not, when it is determined that there is an alarm record of manually deleting the unrecovered signal or a display record of the unrecovered signal being displayed in the historical alarm window, the unrecovered signal is marked as a signal that was mistakenly deleted during manual scheduling; when it is determined that there is no alarm record of manually deleting the unrecovered signal or no display record of the unrecovered signal being displayed in the historical alarm window, a verification work order is generated to indicate that the unrecovered signal needs to be manually checked.

4. The method for classifying unrecovered signals as described in claim 3, characterized in that, After marking the non-reset signal as a signal triggered after the protection device operates, the method further includes: Based on the signal triggered after the protection device operates, a corresponding warning message is generated; wherein, the warning message includes: the non-reset signal is the signal triggered after the protection device operates, please reset.

5. The method for classifying unrecovered signals as described in claim 4, characterized in that, After marking the non-reset signal as a signal triggered after a device malfunction, the method further includes: Acquire the duration of non-reset corresponding to the signal triggered after a device malfunction; When the duration of non-return is not less than a preset time setting, a signal processing prompt message is generated to remind the dispatcher to process the non-return signal.

6. The method for classifying unrecovered signals as described in claim 5, characterized in that, After marking the non-reset signal as a signal triggered by human maintenance, the method further includes: Use the identification sign of the substation to which the signal triggered by human maintenance belongs as the associated identification sign; When it is determined that the signal triggered by human maintenance corresponding to the associated sign has been restored, a sign removal prompt message is generated to indicate that the associated sign can be removed.

7. The method for classifying unrecovered signals as described in claim 6, characterized in that, After marking the non-recovered signal as a signal mistakenly deleted during manual scheduling, the method further includes: Restore any signals that were accidentally deleted during manual scheduling to the current alarm window.

8. A classification device for unrecovered signals, characterized in that, include: Unrecovered signal acquisition module and signal classification module; The non-reset signal acquisition module is used to acquire the current non-reset signal; wherein, the non-reset signal includes: continuous non-reset time, the association status of the maintenance sign, and the association status of the protection action event; the association status includes: not associated or associated. The signal classification module is used to mark the non-reset signal as a long-term legacy signal when it is determined that the continuous non-reset time is greater than a preset reset time threshold, the associated status of the maintenance sign is not associated, and the associated status of the protection action event is not associated. If the continuous non-reset time is determined to be no greater than the preset reset time threshold, the associated status of the maintenance sign is associated, or the associated status of the protection action event is associated, then it is determined whether the non-reset signal is a newly added non-reset signal within the preset period. If not, when it is determined that the non-recovered signal has a classification mark, the non-recovered signal is marked as a short-term residual signal; when it is determined that the non-recovered signal does not have a classification mark, it is determined whether the non-recovered signal is in the current alarm window. If so, the non-recovered signal is marked as a signal triggered by a device malfunction; otherwise, the non-recovered signal is marked as an abnormal signal triggered by human operation. If so, when it is determined that the non-reset signal is within the current alarm window, the non-reset signal is marked as a signal triggered by a device malfunction; when it is determined that the non-reset signal is not within the current alarm window, the non-reset signal is marked as an abnormal signal triggered by human operation.

9. A terminal device, characterized in that, It includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor, when executing the computer program, implements a method for classifying unrecovered signals as described in any one of claims 1 to 7.

10. A storage medium, characterized in that, The storage medium includes a stored computer program, wherein, when the computer program is executed, it controls the device where the storage medium is located to perform a method for classifying unrecovered signals as described in any one of claims 1 to 7.

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