Signal type identification methods, devices and computer equipment

Abstract

This application relates to a signal type discrimination method, a fault diagnosis method, an apparatus, a computer device, a storage medium, and a computer program product. The signal type discrimination method includes: receiving an alarm signal; determining the operating status of the monitoring device based on its equipment information; when the operating status is normal, determining the equipment type of the monitored device based on its equipment information; and discriminating the signal type of the alarm signal based on the equipment type of the monitored device. This application can quickly determine the signal type corresponding to an alarm signal, enabling rapid classification and location of faults corresponding to alarm signals, while simultaneously eliminating interference from false signals. The signal type discrimination method in this embodiment does not require much manual judgment or operation, automatically filtering out false signals. Through a closed-loop management method for alarm signals, a closed-loop management process for handling fault events is achieved.

Description

Technical Field

[0001] This application relates to the field of automation technology, and in particular to a signal type discrimination method, fault diagnosis method, device, computer equipment, storage medium and computer program product. Background Technology

[0002] As the network structure of power distribution networks becomes increasingly complex and the network scale gradually expands, the amount of data that needs to be processed during the operation of power distribution networks is also increasing. Power automation systems have made significant progress, which has to some extent solved the contradiction between the large demand for data processing and the shortage of manpower. However, power automation systems themselves have also brought some problems.

[0003] Power automation systems are an important source of information on operational faults. However, fault signals from power automation systems are often mixed with many false signals. This requires manual judgment after receiving fault signals from the power automation system. Such a large amount of manual labor not only brings huge labor costs, but also, due to the low processing speed, it will cause faults that have already occurred to be handled in a timely and proper manner, resulting in a decline in the stability and reliability of power grid operation. Summary of the Invention

[0004] Therefore, it is necessary to provide a signal type discrimination method, fault diagnosis method, device, computer equipment, storage medium, and computer program product that can automatically filter out false signals and determine the fault type corresponding to alarm signals in order to address the above-mentioned technical problems.

[0005] Firstly, this application provides a signal type discrimination method, including:

[0006] Receive alarm signals, the alarm signals carrying equipment information of the monitoring equipment and the equipment information of the monitored equipment;

[0007] The operating status of the monitoring equipment is determined based on the equipment information of the monitoring equipment;

[0008] When the operating status is normal, the device type of the monitored device is determined based on the device information of the monitored device;

[0009] The alarm signal type is determined based on the device type of the monitored device.

[0010] In one embodiment, determining the signal type of the alarm signal based on the device type of the monitored device includes:

[0011] When the monitored equipment is a distribution network control equipment and the alarm signal belongs to the first type of fault, the alarm signal corresponds to a feeder switch tripping fault.

[0012] When the monitored equipment is a distribution network dispatching device and the alarm signal belongs to the second type of fault, the alarm signal is determined to correspond to a station switch tripping fault.

[0013] When the monitored equipment is a distribution network dispatching equipment and the alarm signal belongs to the third type of fault, the alarm signal is determined to correspond to a bus undervoltage fault within the station.

[0014] When the monitored equipment is a distribution network dispatching device and the alarm signal belongs to the fourth type of fault, the fault of the equipment in the station corresponding to the alarm signal is determined.

[0015] In one embodiment, the step of determining that the alarm signal belongs to the first type of fault includes:

[0016] When the monitored device is a distribution network control device, the device type is determined based on the device information of the monitored device.

[0017] When the monitoring device is a feeder device, the tripping status of the monitored device is determined based on the device information of the monitored device.

[0018] When the tripping status is normal, the feeder information is obtained from the equipment information of the monitored equipment;

[0019] Based on the feeder information, determine the first switch state in the feeder;

[0020] When the first switch is in normal condition, the first power outage information in the feeder is determined based on the feeder information.

[0021] When the first power outage information meets the first preset condition, the protection action information in the feeder is determined according to the feeder information;

[0022] When the protection action information meets the second preset condition, the second power outage information in the feeder is determined according to the feeder information;

[0023] When the second power outage information meets the third preset condition, it is determined that the alarm signal belongs to the first type of fault.

[0024] In one embodiment, the step of determining that the alarm signal belongs to the second type of fault includes:

[0025] When the equipment type of the monitored equipment is a distribution network dispatching equipment, the station switch name information is obtained from the equipment information of the monitored equipment;

[0026] When the name information of the switch in the station is successfully obtained, the tripping status of the monitored device is determined according to the device information of the monitored device.

[0027] When the tripping status is normal, the first commissioning status of the monitored equipment is determined based on the equipment information of the monitored equipment.

[0028] When the first production status is normal, the second switch status of the monitored equipment is determined based on the equipment information of the monitored equipment.

[0029] When the second switch is in a normal state, the switch protection action information is determined based on the equipment information of the monitored device;

[0030] When the switch protection action information meets the fourth preset condition, the feeder information is obtained from the equipment information of the monitored equipment, and the third power outage information in the feeder information is determined.

[0031] When the third power outage information meets the fifth preset condition, it is determined that the alarm signal belongs to the second type of fault.

[0032] In one embodiment, the step of determining that the alarm signal belongs to the third type of fault includes:

[0033] When the monitored device is a distribution network control device, the current information of the monitored device is determined based on the device information of the monitored device.

[0034] When the current information does not reach the preset current threshold, the voltage information of the monitored device is determined based on the device information of the monitored device.

[0035] When the voltage information does not exceed the preset voltage threshold, the second production status of the monitored equipment is determined based on the equipment information of the monitored equipment;

[0036] When the second production status is normal, the first power-on status information of the monitored equipment is determined based on the equipment information of the monitored equipment.

[0037] When the first energized state information meets the sixth preset condition, the fourth power outage information of the monitored device is determined according to the device information of the monitored device.

[0038] When the fourth power outage information meets the seventh preset condition, it is determined that the alarm signal belongs to the third type of fault.

[0039] In one embodiment, the step of determining that the alarm signal belongs to the fourth type of fault includes:

[0040] When the monitored equipment type is a distribution network control device, the grouping information of the monitored equipment is determined based on the equipment information of the monitored equipment;

[0041] When the grouping information of the monitoring equipment is in-station equipment, determine the equipment type and switch name information of the monitoring equipment;

[0042] When the monitoring device is a feeder device and the switch name information is successfully obtained, the third production status of the monitored device is determined according to the device information of the monitored device.

[0043] When the third production state is normal, the second energized state information of the monitored equipment is determined based on the equipment information of the monitored equipment.

[0044] When the second energized state information meets the eighth preset condition, the feeder information is obtained from the equipment information of the monitored equipment, and the fifth power outage information in the feeder information is determined.

[0045] When the fifth power outage information meets the ninth preset condition, it is determined that the alarm signal belongs to the fourth type of fault.

[0046] In one embodiment, determining the signal type of the alarm signal based on the device type of the monitored device further includes:

[0047] When the alarm signal belongs to the fifth type of fault, it is determined that the alarm signal corresponds to a tripping fault of the external equipment.

[0048] The steps for determining that the alarm signal belongs to the fifth type of fault include:

[0049] Based on the equipment information of the monitored equipment, the fourth production status of the monitored equipment is determined;

[0050] When the fourth production status is normal, the third switch status of the monitored equipment is determined based on the equipment information of the monitored equipment.

[0051] When the third switch is in normal condition, the feeder information is obtained from the equipment information of the monitored equipment, and the sixth power outage information in the feeder information is determined.

[0052] When the sixth power outage information meets the tenth preset condition, the alarm signal is determined to belong to the fifth type of fault.

[0053] Secondly, this application also provides a signal type discrimination device, comprising:

[0054] The receiving module is used to receive alarm signals;

[0055] The first determining module is used to determine the operating status of the monitoring equipment based on the equipment information of the monitoring equipment carried by the alarm signal;

[0056] The second determining module is used to determine the device type of the monitored device based on the device information of the monitored device carried in the alarm information when the operating state is normal.

[0057] The filtering module is used to determine the signal type of the alarm signal based on the device type of the monitored device.

[0058] Thirdly, this application also provides a computer device. The computer device includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the signal type discrimination method described in any of the above embodiments.

[0059] Fourthly, this application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program thereon, which, when executed by a processor, implements the signal type discrimination method described in any of the above embodiments.

[0060] Fifthly, this application also provides a computer program product. The computer program product includes a computer program that, when executed by a processor, implements the signal type discrimination method described in any of the above embodiments.

[0061] The aforementioned signal type discrimination method, fault diagnosis method, device, computer equipment, storage medium, and computer program product can determine the signal type corresponding to the alarm signal based on the equipment information of the monitoring equipment and the monitored equipment in the power distribution network. This enables rapid classification and location of fault accidents corresponding to alarm signals, while simultaneously eliminating interference from false signals. The signal type discrimination method in this embodiment does not require much manual judgment or operation and can automatically filter out false signals. Through the closed-loop management method of alarm signals, a closed-loop management process for handling fault events can be achieved. Attached Figure Description

[0062] Figure 1 This is a diagram illustrating the application environment of a signal type discrimination method in one embodiment;

[0063] Figure 2 This is a flowchart illustrating a signal type determination method in one embodiment;

[0064] Figure 3 This is a flowchart illustrating the signal type determination method in another embodiment;

[0065] Figure 4This is a structural block diagram of the signal type discrimination device in another embodiment;

[0066] Figure 5 This is a structural block diagram of a signal type discrimination device in one embodiment;

[0067] Figure 6 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0068] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0069] The signal type discrimination method provided in this application embodiment can be applied to, for example, Figure 1 In the application environment shown, terminal 102 communicates with server 104 via a network. The data storage system can store the data that server 104 needs to process. It is understood that the data storage system can be a standalone storage device, integrated onto server 104, located on another terminal, or placed on a cloud or other network server.

[0070] For example, the signal type discrimination method is applied to terminal 102. Terminal 102 first receives an alarm signal, which carries device information of both the monitoring device and the monitored device. Then, terminal 102 determines the operating status of the monitoring device based on its device information. When the operating status is normal, terminal 102 determines the device type of the monitored device based on its device information. Finally, based on the device type of the monitored device, terminal 102 determines the signal type of the alarm signal. Terminal 102 can then send the signal type of the alarm signal to server 104. Server 104, for example, stores the signal type of the alarm signal in a data storage system. Terminal 102 can be, but is not limited to, various personal computers, laptops, smartphones, tablets, IoT devices, and portable wearable devices. IoT devices can include smart speakers, smart TVs, smart air conditioners, and smart in-vehicle devices. Portable wearable devices can include smartwatches, smart bracelets, and head-mounted devices. Server 104 can be implemented using a standalone server or a server cluster consisting of multiple servers. Terminal 102 and server 104 can be directly or indirectly connected via wired or wireless communication, such as through a network connection.

[0071] For example, in the fault diagnosis model training method applied to server 104, terminal 102 first receives an alarm signal, and then sends the alarm signal to server 104. The alarm signal carries the device information of the monitoring device and the device information of the monitored device. Then, server 104 determines the operating status of the monitoring device based on the device information of the monitoring device. When the operating status is normal, server 104 determines the device type of the monitored device based on the device information of the monitored device. Finally, based on the device type of the monitored device, the signal type of the alarm signal is determined. For example, server 104 stores the signal type of the alarm signal in the data storage system.

[0072] In one embodiment, a signal type discrimination method is provided. This embodiment illustrates this method by applying it to a processor. It is understood that the processor may be located on a terminal or a server. Figure 2 As shown, the signal type discrimination method in this embodiment includes:

[0073] Step 202: Receive alarm signal. The alarm signal carries the equipment information of the monitoring equipment and the equipment information of the monitored equipment.

[0074] Alarm signals refer to signals issued by the distribution network according to pre-set alarm rules, used to alert staff that there is a fault in the equipment in the distribution network.

[0075] The monitored equipment refers to all the specific equipment contained in the power distribution network.

[0076] The equipment information of the monitored equipment can include the equipment's operating data, hardware information, etc.

[0077] Monitoring equipment refers to equipment used to monitor and detect the operating status of important equipment in a power distribution network in order to ensure the safe operation of the power distribution network. Monitoring equipment can be installed on feeders.

[0078] The equipment information of the monitoring equipment can include the equipment's operating data, hardware information, etc.

[0079] Step 204: Determine the operating status of the monitoring equipment based on the equipment information of the monitoring equipment.

[0080] Specifically, common fault types in distribution networks include external faults, feeder faults, feeder defects, main transformer faults, and main transformer defects. The power automation system in the distribution network may trigger erroneous signals during operation. These include erroneous remote signaling when the station-end remote control device restarts, inconsistencies between field wiring and station-end remote control device parameters, or between the station-end remote control device and the master station parameter library definitions, erroneous signals caused by dampness, rust, aging, or mechanical issues of auxiliary nodes, and "control circuit disconnection" signals when switches trip. Therefore, in the process of identifying the fault type corresponding to alarm signals, it is also necessary to eliminate the above-mentioned erroneous signals to strengthen the full-process control of alarm signal processing.

[0081] Specifically, the operating status of the monitoring equipment can include alarm suppression status and non-alarm suppression status. For example, when the monitoring equipment is under maintenance, testing or debugging, it can be considered that the operating status of the monitoring equipment is abnormal and the monitoring equipment is in alarm suppression status. At this time, the alarm signal issued can be considered as a false signal, and the processor can exclude the current alarm signal. If the monitoring equipment is not under maintenance, testing or debugging, it can be considered that the operating status of the monitoring equipment is normal and the monitoring equipment is in non-alarm suppression status. The processor further performs signal type discrimination of the alarm signal.

[0082] In this embodiment, the processor can determine whether the monitoring device is under maintenance, testing, or debugging based on the device information of the monitoring device. Only when the monitoring device is not under maintenance, testing, or debugging will the processor continue to determine the signal type of the alarm signal; otherwise, the current alarm signal will be excluded as a false signal.

[0083] Step 206: When the operating status is normal, determine the equipment type of the monitored equipment based on the equipment information of the monitored equipment.

[0084] The types of equipment being monitored can be main grid control equipment, distribution network control equipment, etc.

[0085] When the monitoring equipment is not under maintenance, testing, or debugging, the processor determines the equipment type of the monitored equipment based on the operating data and hardware information of all monitored equipment in the power distribution network.

[0086] In this embodiment, the processor determines whether the monitored device belongs to the main network dispatching device or the distribution network dispatching device based on the operating data and hardware information of the monitored device.

[0087] Step 208: Determine the alarm signal type based on the device type of the monitored device.

[0088] Specifically, when the monitored device belongs to the main control device, the processor can consider the alarm signal to be a false signal. When the monitored device belongs to the distribution network control device, the processor further determines the signal type corresponding to the alarm signal.

[0089] The above-mentioned signal type discrimination method can determine the signal type corresponding to the alarm signal based on the equipment information of the monitoring equipment and the equipment information of the monitored equipment in the power distribution network, realize the rapid classification and rapid location of the fault accident corresponding to the alarm signal, and at the same time eliminate the interference of false signals. The signal type discrimination method in this embodiment does not require more manual judgment and operation, and can automatically filter out false signals. Through the closed-loop management method of alarm signals, the closed-loop management of the fault event handling process can be realized.

[0090] like Figure 3 As shown, in some possible embodiments, step 208 includes:

[0091] Step 2082: When the monitored equipment type is distribution network control equipment and the alarm signal belongs to the first type of fault, determine the feeder switch tripping fault corresponding to the alarm signal;

[0092] Step 2084: When the monitored equipment type is distribution network dispatching equipment and the alarm signal belongs to the second type of fault, determine the switch tripping fault in the station corresponding to the alarm signal;

[0093] Step 2086: When the monitored equipment type is distribution network dispatching equipment and the alarm signal belongs to the third type of fault, determine the bus undervoltage fault corresponding to the alarm signal in the station.

[0094] Step 2088: When the monitored equipment type is distribution network dispatching equipment and the alarm signal belongs to the fourth type of fault, determine the fault of the equipment in the station corresponding to the alarm signal.

[0095] After determining that the monitored equipment is a distribution network dispatching device, the processor classifies the alarm signals and obtains the actual fault type corresponding to the alarm signal based on the classification results, so that staff can perform distribution network maintenance according to the actual fault type corresponding to the alarm signal.

[0096] In some possible embodiments, the step of determining that the alarm signal belongs to the first type of fault includes:

[0097] When the equipment type of the monitored equipment is distribution network dispatching equipment, the equipment type of the monitored equipment is determined according to the equipment information of the monitored equipment;

[0098] When the monitoring device is a feeder device, the tripping status of the monitored device is determined based on the device information.

[0099] When the tripping status is normal, the feeder information is obtained from the equipment information of the monitored equipment;

[0100] Based on the feeder information, determine the state of the first switch in the feeder;

[0101] When the first switch is in normal condition, the first power outage information in the feeder is determined based on the feeder information.

[0102] When the first power outage information meets the first preset condition, the protection action information in the feeder is determined based on the feeder information;

[0103] When the protection action information meets the second preset condition, the third power outage information in the feeder is determined based on the feeder information;

[0104] When the second power outage information meets the third preset condition, it is determined that the alarm signal belongs to the first type of fault.

[0105] The equipment information of the monitoring equipment can include the name of the feeder where the monitoring equipment is located, such as "Tianyou Line 3 F23". When the equipment information of the monitoring equipment contained in the alarm signal contains "Tianyou Line 3 F23", the processor considers the equipment type of the monitoring equipment to be a feeder equipment. Otherwise, the processor considers the equipment type of the monitoring equipment not to be a feeder equipment, and the alarm signal can be considered a false alarm signal.

[0106] When the monitored device trips, the monitoring device can detect the occurrence of the tripping event. When the alarm signal contains information corresponding to the tripping time in the device information of the monitored device, the processor considers the tripping status of the monitored device to be normal. Otherwise, the processor considers that the monitored device has not performed a tripping event, and the alarm signal can be considered a false signal.

[0107] A feeder is a branch that connects to any node in the distribution network; it can be either an incoming or outgoing branch. The typical topology of a distribution network is radial, so energy flow in most feeders is unidirectional. However, to improve power supply reliability, the structure of distribution networks varies greatly, and power transmission is not always in one direction. Therefore, roughly speaking, any branch in a distribution network can be called a feeder.

[0108] The first switch state refers to the switch state in the single-line diagram of the feeder.

[0109] The processor extracts feeder information from the device information of the monitored device and determines whether the switch status of the feeder in the single-line diagram is in the running state based on the feeder information. If it is in the running state, the processor considers the first switch status to be normal. If it is not in the running state, the processor considers the current alarm signal to be a debugging signal, and the alarm signal can be considered to be a false signal.

[0110] The first preset condition can be that the first power outage information includes a main grid power outage order, and the planned power restoration time in the main grid power outage order is after the current time.

[0111] The processor extracts the first power outage information from the feeder information and determines whether the extraction is successful. If the extraction is successful, and the main grid power outage order shows that the bus to which the feeder belongs is out of power, and the planned restoration time for the out-of-power bus is after the current time, then the processor considers the first power outage information to exist in the feeder information and the first power outage information to meet the first preset condition. If the extraction fails, or the main grid power outage order in the extracted first power outage information does not show that the bus to which the feeder belongs is out of power, or the planned restoration time for the out-of-power bus is before the current time, then the processor considers the current alarm signal to be a debugging signal, and the alarm signal can be considered a false signal.

[0112] The second preset condition can be that the feeder information contains protection action information, and the time interval between the issuance time of the protection action signal corresponding to the protection action information and the occurrence time of the aforementioned tripping time does not exceed a preset time difference threshold. The preset time difference threshold is, for example, 10 seconds.

[0113] The protection action information of the feeder refers to the protection action signal of the switch in the single-line diagram of the feeder.

[0114] The processor extracts the protection action information of the feeder from the feeder information and determines whether the extraction is successful. If the extraction is successful and the interval between the time of the protection action signal corresponding to the protection action information and the time of the occurrence of the above-mentioned tripping event does not exceed the preset time difference threshold, it is considered that there is protection action information in the feeder information and the protection action information meets the second preset condition. If the extraction fails, or the interval between the time of the protection action signal corresponding to the protection action information and the time of the occurrence of the above-mentioned tripping event exceeds the preset time difference threshold, the processor considers that there is no protection action information in the feeder and the current alarm signal is a debugging signal. At this time, the alarm signal can be considered as a false signal.

[0115] The third preset condition can be that the second power outage information includes both the main grid power outage order and the distribution network power outage order, and the planned power restoration time in the main grid power outage order is after the current time, and the planned power restoration time in the distribution network power outage order is also after the current time.

[0116] The processor extracts the second power outage information from the feeder information and determines whether the extraction was successful. If the extraction is successful, and the planned restoration time in the main grid power outage order in the second power outage information is after the current time, and the planned restoration time in the distribution network power outage order in the second power outage information is also after the current time, then it is considered that the second power outage information exists in the feeder information and the second power outage information meets the third preset condition. If the extraction fails, or the planned restoration time in the main grid power outage order in the extracted second power outage information is before the current time, or the planned restoration time in the main grid power outage order in the extracted second power outage information is also before the current time, then the processor considers the current alarm signal to be caused by a power outage operation, and at this time the alarm signal can be considered a false alarm signal.

[0117] In some possible embodiments, the step of determining that the alarm signal belongs to the second type of fault includes:

[0118] When the equipment type of the monitored equipment is distribution network dispatching equipment, obtain the switch name information within the station from the equipment information of the monitored equipment;

[0119] When the switch name information within the station is successfully obtained, the tripping status of the monitored equipment is determined based on the equipment information of the monitored equipment.

[0120] When the tripping status is normal, the first commissioning status of the monitored equipment is determined based on the equipment information of the monitored equipment.

[0121] When the first production state is normal, the second switch state of the monitored equipment is determined based on the equipment information of the monitored equipment.

[0122] When the second switch is in normal condition, the switch protection action information is determined based on the equipment information of the monitored equipment.

[0123] When the switch protection action information meets the fourth preset condition, the feeder information is obtained from the equipment information of the monitored equipment, and the third power outage information in the feeder information is determined.

[0124] When the third power outage information meets the fifth preset condition, it is determined that the alarm signal belongs to the second type of fault.

[0125] In a power distribution network, there are various substation switches, and these substation switches use prefixes such as "L", "D", and "ST" to name them. When the equipment information of a monitored device contains the name of a substation switch, the equipment information of the monitored device must contain letters such as "L", "D", or "ST". In this case, the processor considers the monitored device to contain the name of a substation switch. Otherwise, the processor considers the monitored device not to contain a substation switch, and the alarm signal can be considered a false alarm.

[0126] When the monitored device trips, the monitoring device can detect the occurrence of the tripping event. When the alarm signal contains information corresponding to the tripping time in the device information of the monitored device, the processor considers the tripping status of the monitored device to be normal. Otherwise, the processor considers that the monitored device has not performed a tripping event, and the alarm signal can be considered a false signal.

[0127] The first production status refers to the production status recorded in the allocation and dispatch ledger.

[0128] The processor obtains substation information from the equipment information of the monitored equipment, and determines whether the equipment is in operation according to the substation information. If so, the first operation status is considered normal; otherwise, the alarm signal is considered a false signal.

[0129] The second switch status refers to the status of the switch in the substation main wiring diagram.

[0130] The processor obtains substation information from the equipment information of the monitored equipment, and determines whether the switch status in the main wiring diagram is in operation based on the substation information. If it is, the second switch status is considered normal; otherwise, the alarm signal is considered a false signal.

[0131] Switch protection action information refers to the protection action signals of the switches in the substation main wiring diagram.

[0132] The fourth preset condition can be that the equipment information of the monitored equipment includes substation information, and the time interval between the protection action signal issued by the switch protection action information in the substation information and the time of occurrence of the above-mentioned tripping event does not exceed the preset time difference threshold.

[0133] The processor obtains substation information from the equipment information of the monitored equipment and determines whether the extraction is successful. If the extraction is successful and the interval between the time of the protection action signal corresponding to the switch protection action information and the time of the occurrence of the above-mentioned tripping event does not exceed the preset time difference threshold, it is considered that there is switch protection action information in the equipment information of the monitored equipment and the switch protection action information meets the fourth preset condition. If the extraction fails, or the interval between the time of the protection action signal corresponding to the switch protection action information and the time of the occurrence of the above-mentioned tripping event exceeds the preset time difference threshold, the processor considers that there is no switch protection action information in the equipment information of the monitored equipment, and the current alarm signal is a debugging signal. At this time, the alarm signal can be considered as a false signal.

[0134] The fifth preset condition can be that the third power outage information includes a main grid maintenance order, the equipment to be maintained corresponding to the "first maintenance requirement" in the main grid maintenance order includes the switches in the main wiring diagram of the substation mentioned above, and the current time is between the power outage start time and the power outage end time in the main grid maintenance order.

[0135] The processor extracts feeder information from the equipment information of the monitored equipment, and extracts third power outage information from the feeder information. It then determines whether the extraction was successful. If the extraction is successful, and the third power outage information contains a main grid maintenance order, the equipment under maintenance corresponding to the "first maintenance requirement" in the main grid maintenance order includes the switches in the substation main wiring diagram, and the current time is between the power outage start time and power outage end time in the main grid maintenance order, then the processor considers that the feeder information contains third power outage information, and the second power outage information meets the fifth preset condition. If the extraction fails, or the third power outage information does not contain a main grid maintenance order, or the equipment under maintenance corresponding to the "first maintenance requirement" in the main grid maintenance order does not include the switches in the substation main wiring diagram, or the current time is not between the power outage start time and power outage end time in the main grid maintenance order, then the processor considers the current alarm signal to be a debugging signal, and in this case, the alarm signal can be considered a false signal.

[0136] In some possible embodiments, the step of determining that the alarm signal belongs to a third type of fault includes:

[0137] When the equipment type of the monitored equipment is distribution network control equipment, the current information of the monitored equipment is determined based on the equipment information of the monitored equipment;

[0138] When the current information does not reach the preset current threshold, the voltage information of the monitored device is determined based on the device information of the monitored device.

[0139] When the voltage information does not exceed the preset voltage threshold, the second production status of the monitored equipment is determined based on the equipment information of the monitored equipment.

[0140] When the second production state is normal, the first energized state information of the monitored equipment is determined based on the equipment information of the monitored equipment.

[0141] When the first energized state information meets the sixth preset condition, the fourth power outage information of the monitored equipment is determined based on the equipment information of the monitored equipment.

[0142] When the fourth power outage information meets the seventh preset condition, it is determined that the alarm signal belongs to the third type of fault.

[0143] When the current in the distribution network is too low, the current information of the monitored equipment will contain the text "beyond the lower limit of the accident". Therefore, when the equipment information of the monitored equipment contains current information and the current information contains the text "beyond the lower limit of the accident", the processor believes that the current corresponding to the current information has not reached the preset current threshold. Otherwise, the processor believes that the current alarm signal is a false signal.

[0144] The processor extracts voltage information from the device information of the monitored device and determines whether the voltage exceeds a preset voltage threshold. If the voltage exceeds the preset voltage threshold, the processor considers the current alarm signal to be a false alarm. The preset voltage threshold can be 0.2V.

[0145] The second commissioning status refers to the commissioning status of substations and busbars in the dispatching ledger.

[0146] The processor obtains substation information from the equipment information of the monitored equipment, and determines whether the substation and bus in the dispatching ledger are in operation based on the substation information. If yes, the second operation status is considered normal; otherwise, the alarm signal is considered a false signal.

[0147] The first energized status information refers to the energized status of the main network wiring diagram of the distribution network.

[0148] The sixth preset condition can be that the main network wiring diagram is in a state where the topology is energized.

[0149] The processor obtains the energized status of the main network wiring diagram of the distribution network from the equipment information of the monitored equipment. When the energized status of the main network wiring diagram is topology energized, the processor considers the first energized status information to meet the sixth preset condition. Otherwise, the processor considers the current alarm signal to be a debugging signal after a power outage, and at this time the alarm signal can be considered to be a false signal.

[0150] The seventh preset condition can be that the fourth power outage information contains the main grid plan, and the approved power outage time in the main grid plan is before the current time.

[0151] The processor extracts the fourth power outage information from the device information of the monitored device and determines whether the extraction is successful. If the extraction is successful and the fourth power outage information contains the main network plan and the approved power outage time in the main network plan is before the current time, then the fourth power outage information is considered to meet the seventh preset condition. If the extraction fails, or the fourth power outage information does not contain the main network plan, or the approved power outage time in the main network plan is not before the current time, then the processor considers the current alarm signal to be a debugging signal, and the alarm signal can be considered to be a false signal.

[0152] In some possible embodiments, the step of determining that the alarm signal belongs to the fourth type of fault includes:

[0153] When the equipment type of the monitored equipment is distribution network dispatching equipment, the grouping information of the monitored equipment is determined according to the equipment information of the monitored equipment;

[0154] When the grouping information of the monitoring equipment is within the station, determine the equipment type and switch name information of the monitoring equipment;

[0155] When the monitoring device is a feeder device and the switch name information is successfully obtained, the third commissioning status of the monitored device is determined based on the device information of the monitored device.

[0156] When the third production status is normal, the second energized status information of the monitored equipment is determined based on the equipment information of the monitored equipment.

[0157] When the second energized state information meets the eighth preset condition, the feeder information is obtained from the equipment information of the monitored equipment, and the fifth power outage information in the feeder information is determined.

[0158] When the fifth power outage information meets the ninth preset condition, the alarm signal is determined to belong to the fourth type of fault.

[0159] The equipment information of the monitoring equipment can include the name of the feeder where the monitoring equipment is located, such as "Tianyou Line 3 F23". When the equipment information of the monitoring equipment contained in the alarm signal contains "Tianyou Line 3 F23", the processor considers the equipment type of the monitoring equipment to be a feeder equipment. Otherwise, the processor considers the equipment type of the monitoring equipment not to be a feeder equipment, and the alarm signal can be considered a false alarm signal.

[0160] In a distribution network, there are switches in the single-line diagram of feeders and different switches within the substation. Switches in the single-line diagram of feeders use "F" as a prefix in their names, while switches within the substation use "L", "D", "ST", etc., as prefixes in their names. The switch name information consists of the information corresponding to the switches in the single-line diagram of feeders and the different switches within the substation. If the equipment information of the monitored equipment contains letters such as "F", "L", "D", or "ST", the processor assumes that the monitored equipment contains switch name information; otherwise, the processor considers the alarm signal to be a false alarm.

[0161] The third production status refers to the production status recorded in the allocation and dispatch ledger.

[0162] The processor obtains the distribution log information from the equipment information of the monitored equipment and determines whether the equipment in the distribution log is in production. If yes, the third production status is considered normal; otherwise, the alarm signal is considered a false signal.

[0163] The second energized status information refers to the energized status of the main network wiring diagram of the distribution network.

[0164] The eighth preset condition can be that the main network wiring diagram is in a state of topology energization.

[0165] The processor obtains the energized status of the main network wiring diagram of the distribution network from the equipment information of the monitored equipment. When the energized status of the main network wiring diagram is topology energized, the processor considers the second energized status information to meet the eighth preset condition. Otherwise, the processor considers the current alarm signal to be a debugging signal after a power outage, and at this time the alarm signal can be considered to be a false signal.

[0166] The ninth preset condition can be that the fifth power outage information contains the main grid plan, and the approved power outage time in the main grid plan is before the current time.

[0167] The processor extracts the fifth power outage information from the device information of the monitored device and determines whether the extraction is successful. If the extraction is successful and the fifth power outage information contains the main network plan and the approved power outage time in the main network plan is before the current time, then the fourth power outage information is considered to meet the ninth preset condition. If the extraction fails, or the fifth power outage information does not contain the main network plan, or the approved power outage time in the main network plan is not before the current time, then the processor considers the current alarm signal to be a debugging signal, and the alarm signal can be considered to be a false signal.

[0168] like Figure 4 As shown, in some possible embodiments, step 208 further includes:

[0169] Step 20810: When the alarm signal belongs to the fifth type of fault, determine the tripping fault of the external equipment corresponding to the alarm signal;

[0170] The steps to determine that an alarm signal belongs to a Class 5 fault include:

[0171] Based on the equipment information of the monitored equipment, determine the fourth production status of the monitored equipment;

[0172] When the fourth production status is normal, the third switch status of the monitored equipment is determined based on the equipment information of the monitored equipment.

[0173] When the third switch is in normal condition, obtain the feeder information from the equipment information of the monitored equipment, and determine the sixth power outage information in the feeder information;

[0174] When the sixth power outage information meets the tenth preset condition, the alarm signal is determined to belong to the fifth type of fault.

[0175] The fourth commissioning status refers to the commissioning status of the switch in the single-line diagram of the feeder.

[0176] The processor extracts feeder information from the equipment information of the monitored equipment and determines whether there is a single-line diagram of the feeder based on the feeder information. If a single-line diagram exists, the processor considers the fourth production state to be normal; otherwise, it considers the alarm signal to be a false signal.

[0177] The third switch state refers to the state of the switches in the ring network diagram.

[0178] The processor obtains the status of the ring network diagram switches from the device information of the monitored device and determines whether the status of the ring network diagram switches is in the running state. If it is, the processor considers the third switch to be in normal state; otherwise, the processor considers the current alarm signal to be a debugging signal, and the alarm signal can be considered a false signal.

[0179] The tenth preset condition can be that the sixth power outage information contains a distribution network maintenance order in either the state of pending receipt or pending execution, and the planned power outage time in the distribution network maintenance order is after the current time.

[0180] The processor extracts the sixth power outage information from the equipment information of the monitored equipment and determines whether the extraction is successful. If the extraction is successful, and the sixth power outage information contains a distribution network maintenance order in either the pending receipt or pending execution state, and the planned power outage time of the distribution network maintenance order is after the current time, then the sixth power outage information is considered to meet the ninth preset condition. If the extraction fails, or the sixth power outage information does not contain a distribution network maintenance order in either the pending receipt or pending execution state, or the planned power outage time of the distribution network maintenance order is not after the current time, then the processor considers the current alarm signal to be a debugging signal, and in this case, the alarm signal can be considered a false signal.

[0181] It should be noted that the above process of determining whether an alarm signal belongs to the first, second, third, fourth, or fifth type of fault is performed sequentially. Only when the alarm signal does not belong to the first type of fault can the determination of whether the alarm signal belongs to the second, third, fourth, or fifth type of fault be performed sequentially.

[0182] The aforementioned signal type discrimination method obtains equipment information from both the monitoring and monitored devices based on alarm signals emitted by the monitoring equipment. It then further discriminates between various equipment faults and states based on this information, sequentially classifying the alarm signal into one of five fault types: Type 1, Type 2, Type 3, Type 4, or Type 5. This configuration allows the processor to quickly determine the signal type corresponding to the alarm signal, enabling rapid classification and localization of the fault incident. Simultaneously, it eliminates interference from false signals. This signal type discrimination method requires minimal manual judgment and operation, automatically filtering out false signals. Through closed-loop management of alarm signals, it achieves closed-loop management of the fault event handling process.

[0183] It should be understood that although the steps in the flowcharts of the above embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the above embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0184] Based on the same inventive concept, this application also provides a signal type discrimination device for implementing the signal type discrimination method described above. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations in one or more signal type discrimination device embodiments provided below can be found in the limitations of the signal type discrimination method described above, and will not be repeated here.

[0185] In one embodiment, such as Figure 5 As shown, a signal type discrimination device 500 is provided, including: a receiving module 502, a first determining module 504, a second determining module 506, and a filtering module 508, wherein:

[0186] The receiving module 502 is used to receive alarm signals;

[0187] The first determining module 504 is used to determine the operating status of the monitoring equipment based on the equipment information of the monitoring equipment carried by the alarm signal;

[0188] The second determining module 506 is used to determine the device type of the monitored device based on the device information of the monitored device carried in the alarm information when the operating status is normal.

[0189] The filtering module 508 is used to determine the signal type of the alarm signal based on the device type of the monitored device.

[0190] Each module in the aforementioned signal type discrimination device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of a computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0191] In one embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the various steps of the above-described signal type discrimination method.

[0192] This computer device can be a terminal, and its internal structure diagram can be as follows: Figure 6 As shown, the computer device includes a processor, memory, communication interface, display screen, and input devices connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, NFC (Near Field Communication), or other technologies. When the computer program is executed by the processor, it implements a memory data access method. The display screen can be an LCD screen or an e-ink screen. The input devices can be a touch layer covering the display screen, buttons, a trackball, or a touchpad mounted on the computer device casing, or an external keyboard, touchpad, or mouse.

[0193] Those skilled in the art will understand that Figure 6 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0194] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, which, when executed by a processor, implements the various steps of the signal type discrimination method described above.

[0195] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the various steps of the signal type discrimination method described above.

[0196] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0197] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0198] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A signal type discrimination method, characterized in that, include: Receive alarm signals, the alarm signals carrying equipment information of the monitoring equipment and the equipment information of the monitored equipment; The operating status of the monitoring equipment is determined based on the equipment information of the monitoring equipment; When the operating status is normal, the device type of the monitored device is determined based on the device information of the monitored device; The alarm signal type is determined based on the device type of the monitored device; The step of determining the signal type of the alarm signal based on the device type of the monitored device includes: When the monitored equipment is a distribution network control equipment and the alarm signal belongs to the first type of fault, the alarm signal corresponds to a feeder switch tripping fault. When the monitored equipment is a distribution network dispatching device and the alarm signal belongs to the second type of fault, the alarm signal is determined to correspond to a station switch tripping fault. When the monitored equipment is a distribution network dispatching equipment and the alarm signal belongs to the third type of fault, the alarm signal is determined to correspond to a bus undervoltage fault within the station. When the monitored equipment is a distribution network dispatching device and the alarm signal belongs to the fourth type of fault, the fault of the equipment in the station corresponding to the alarm signal is determined.

2. The method according to claim 1, characterized in that, The steps to determine that the alarm signal belongs to the first type of fault include: When the monitored device is a distribution network control device, the device type is determined based on the device information of the monitored device. When the monitoring device is a feeder device, the tripping status of the monitored device is determined based on the device information of the monitored device. When the tripping status is normal, the feeder information is obtained from the equipment information of the monitored equipment; Based on the feeder information, determine the first switch state in the feeder; When the first switch is in normal condition, the first power outage information in the feeder is determined based on the feeder information. When the first power outage information meets the first preset condition, the protection action information in the feeder is determined according to the feeder information; When the protection action information meets the second preset condition, the second power outage information in the feeder is determined according to the feeder information; When the second power outage information meets the third preset condition, it is determined that the alarm signal belongs to the first type of fault.

3. The method according to claim 1, characterized in that, The steps to determine that the alarm signal belongs to the second type of fault include: When the equipment type of the monitored equipment is a distribution network dispatching equipment, the station switch name information is obtained from the equipment information of the monitored equipment; When the name information of the switch in the station is successfully obtained, the tripping status of the monitored device is determined according to the device information of the monitored device. When the tripping status is normal, the first commissioning status of the monitored equipment is determined based on the equipment information of the monitored equipment. When the first production status is normal, the second switch status of the monitored equipment is determined based on the equipment information of the monitored equipment. When the second switch is in a normal state, the switch protection action information is determined based on the equipment information of the monitored device; When the switch protection action information meets the fourth preset condition, the feeder information is obtained from the equipment information of the monitored equipment, and the third power outage information in the feeder information is determined. When the third power outage information meets the fifth preset condition, it is determined that the alarm signal belongs to the second type of fault.

4. The method according to claim 1, characterized in that, The steps to determine that the alarm signal belongs to the third type of fault include: When the monitored device is a distribution network control device, the current information of the monitored device is determined based on the device information of the monitored device. When the current information does not reach the preset current threshold, the voltage information of the monitored device is determined based on the device information of the monitored device. When the voltage information does not exceed the preset voltage threshold, the second production status of the monitored equipment is determined based on the equipment information of the monitored equipment; When the second production status is normal, the first power-on status information of the monitored equipment is determined based on the equipment information of the monitored equipment. When the first energized state information meets the sixth preset condition, the fourth power outage information of the monitored device is determined according to the device information of the monitored device. When the fourth power outage information meets the seventh preset condition, it is determined that the alarm signal belongs to the third type of fault.

5. The method according to claim 1, characterized in that, The steps to determine that the alarm signal belongs to the fourth type of fault include: When the monitored equipment type is a distribution network control device, the grouping information of the monitored equipment is determined based on the equipment information of the monitored equipment; When the grouping information of the monitoring equipment is in-station equipment, determine the equipment type and switch name information of the monitoring equipment; When the monitoring device is a feeder device and the switch name information is successfully obtained, the third production status of the monitored device is determined according to the device information of the monitored device. When the third production state is normal, the second energized state information of the monitored equipment is determined based on the equipment information of the monitored equipment. When the second energized state information meets the eighth preset condition, the feeder information is obtained from the equipment information of the monitored equipment, and the fifth power outage information in the feeder information is determined. When the fifth power outage information meets the ninth preset condition, it is determined that the alarm signal belongs to the fourth type of fault.

6. The method according to claim 1, characterized in that, The step of determining the signal type of the alarm signal based on the device type of the monitored device further includes: When the alarm signal belongs to the fifth type of fault, it is determined that the alarm signal corresponds to a tripping fault of the external equipment. The steps for determining that the alarm signal belongs to the fifth type of fault include: Based on the equipment information of the monitored equipment, the fourth production status of the monitored equipment is determined; When the fourth production status is normal, the third switch status of the monitored equipment is determined based on the equipment information of the monitored equipment. When the third switch is in normal condition, the feeder information is obtained from the equipment information of the monitored equipment, and the sixth power outage information in the feeder information is determined. When the sixth power outage information meets the tenth preset condition, the alarm signal is determined to belong to the fifth type of fault.

7. A signal type discrimination device, characterized in that, include: The receiving module is used to receive alarm signals; The first determining module is used to determine the operating status of the monitoring equipment based on the equipment information of the monitoring equipment carried by the alarm signal; The second determining module is used to determine the equipment type of the monitored equipment based on the equipment information of the monitored equipment carried in the alarm information when the operating state is normal. Specifically, the second determining module is used to determine the feeder switch tripping fault corresponding to the alarm signal when the equipment type of the monitored equipment is a distribution network dispatching device and the alarm signal belongs to the first type of fault; to determine the substation switch tripping fault corresponding to the alarm signal when the equipment type of the monitored equipment is a distribution network dispatching device and the alarm signal belongs to the second type of fault; to determine the substation bus undervoltage fault corresponding to the alarm signal when the equipment type of the monitored equipment is a distribution network dispatching device and the alarm signal belongs to the third type of fault; and to determine the substation equipment fault corresponding to the alarm signal when the equipment type of the monitored equipment is a distribution network dispatching device and the alarm signal belongs to the fourth type of fault. The filtering module is used to determine the signal type of the alarm signal based on the device type of the monitored device.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the signal type discrimination method according to any one of claims 1 to 6.

9. 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 signal type discrimination method according to any one of claims 1 to 6.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 6.

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