Method, device and readable storage medium for detecting operating state of secondary circuit

Abstract

The application discloses a detection method and device for a working state of a secondary circuit and a readable storage medium. The method comprises the following steps: acquiring a connection state of a conduction pulse in the secondary circuit; in response to the connection state being an on state, acquiring a current and a voltage in the secondary circuit; determining the working state of the secondary circuit based on the current and the voltage; and in response to the working state being an abnormal working state, outputting abnormal information of the secondary circuit in the abnormal working state. The application solves the technical problem that the state of the secondary circuit in the power system cannot be detected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circuit detection, in particular to a detection method and device for working state of secondary circuit and readable storage medium. BACKGROUND

[0002] At present, with the development of economy and the improvement of residents' living standards, the demand for electricity is growing. In order to meet the needs of economic and social development, the power distribution network has entered the era of automation by comprehensively using automatic control, electronics, computer, communication and other technologies and high-performance power distribution equipment. With the development of automation, the operation and maintenance pressure follows. The fault of distribution network automation terminal may be caused by many reasons, such as communication problem, power failure, hardware failure, software program problem and improper operation, etc.

[0003] In the related art, the communication problem has an effective solution, but for the on-off fault of secondary circuit, it can only be found when the circuit works, and when it happens, the terminal protection refuses to operate, the breaker fails or the remote control fails. The direct impact on the effectiveness of the automation terminal and the reliability of power supply. At the same time, the early distribution network automation terminal has no self-checking function, and there is no way to detect the on-off of the secondary circuit of the automation terminal. The existing distribution network automation terminal self-checking is also concentrated on the software or main version, and lacks detection of the secondary circuit of the automation terminal. Therefore, there is a technical problem that the state of the secondary circuit in the power system cannot be detected.

[0004] In view of the above technical problem that the state of the secondary circuit in the power system cannot be detected, no effective solution has been proposed so far. SUMMARY

[0005] The embodiments of the present application provide a detection method, device and readable storage medium for working state of secondary circuit, to at least solve the technical problem that the state of the secondary circuit in the power system cannot be detected.

[0006] According to one aspect of the embodiments of the present application, a detection method for working state of secondary circuit is provided. The method can include: obtaining a connection state of a conduction pulse in the secondary circuit; in response to the connection state being an on state, obtaining a current and a voltage in the secondary circuit; determining the working state of the secondary circuit based on the current and the voltage; and in response to the working state being an abnormal working state, outputting abnormal information of the secondary circuit in the abnormal working state.

[0007] Optionally, the working state of the secondary circuit is determined based on the current, including: obtaining a preset normal current; performing difference operation on the current and the preset normal current to determine a current difference; and determining the working state of the secondary circuit based on the current difference.

[0008] Optionally, the working state of the secondary circuit is determined based on the current difference, including: in response to the current difference being less than or equal to a current difference threshold, determining that the working state is a normal working state; and in response to the current difference being greater than the current difference threshold, determining that the working state is an abnormal working state.

[0009] Optionally, the working state of the secondary circuit is determined based on the voltage, including: comparing the voltage with a preset voltage threshold to obtain a comparison result; and determining the working state of the secondary circuit based on the comparison result.

[0010] Optionally, the working state of the secondary circuit is determined based on the comparison result, including: in response to the voltage being greater than the preset voltage threshold, determining that the working state is a normal working state; and in response to the voltage being less than or equal to the preset voltage threshold, determining that the working state is an abnormal working state.

[0011] Optionally, the method for detecting the working state of the secondary circuit further includes: in response to the working state being an abnormal working state, uploading a detection result to a terminal and detecting a running state of a device in the secondary circuit.

[0012] According to another aspect of the embodiments of the present application, a device for detecting a working state of a secondary circuit is provided. The device can include: a first obtaining unit configured to obtain a connection state of a conduction pulse in the secondary circuit; a second obtaining unit configured to obtain a current and a voltage in the secondary circuit in response to the connection state being a connected state; a determining unit configured to determine the working state of the secondary circuit based on the current and the voltage; and an output unit configured to output abnormal information of the secondary circuit in an abnormal working state in response to the working state being the abnormal working state.

[0013] According to another aspect of the embodiments of the present application, a computer readable storage medium is provided. The computer readable storage medium includes a stored program, wherein the program, when executed by a processor, controls a device where the storage medium is located to perform the method for detecting the working state of the secondary circuit in the embodiments of the present application.

[0014] According to another aspect of the embodiments of the present application, a processor is provided. The processor is configured to execute a program, wherein the program, when executed, performs the method for detecting the working state of the secondary circuit in the embodiments of the present application.

[0015] According to another aspect of the embodiments of the present application, a computer program product is provided. The program product includes computer instructions, which, when executed by a processor, implement the method for detecting the working state of the secondary circuit in the embodiments of the present application.

[0016] In the embodiment of the present application, the connection state of the on-pulse in the secondary circuit is acquired; in response to the connection state being the on state, the current and voltage in the secondary circuit are acquired; based on the current and voltage, the working state of the secondary circuit is determined; in response to the working state being the abnormal working state, the abnormal information of the secondary circuit in the abnormal working state is output. That is, in the embodiment of the present application, the current and voltage in the secondary circuit when the on-pulse is in the on state are acquired, and the working state of the secondary circuit is determined according to the current and voltage, so as to determine the abnormal information of the secondary circuit in the abnormal working state, thereby solving the technical problem that the state of the secondary circuit in the power system cannot be detected, and achieving the technical effect that the state of the secondary circuit in the power system is detected. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are included to provide a further understanding of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and serve to explain the present application. In the drawings:

[0018] Figure 1 is a flow chart of a detection method of a working state of a secondary circuit according to an embodiment of the present application;

[0019] Figure 2 is a schematic diagram of a novel power system load control device evaluation system according to an embodiment of the present application;

[0020] Figure 3 is a schematic diagram of a power system load control device evaluation device according to an embodiment of the present application;

[0021] Figure 4 is a schematic diagram of a detection device of a working state of a secondary circuit according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] In order to enable persons skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative work should fall within the protection scope of the present application.

[0023] It is to be understood that the terms "first", "second", and the like, used in the description and the claims of the application, as well as the above-described drawings, are used to distinguish similar objects, and are not necessarily used to describe a particular sequential or chronological order. It is to be understood that the data thus used can be interchanged, where appropriate, so that the embodiments of the application described herein can be carried out in sequences other than those illustrated or described herein. Furthermore, the terms "comprise" and "have", and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, function component, or device that includes a list of steps or units not necessarily limited to those clearly listed, but can include other steps or units not clearly listed or inherent to such processes, methods, function components, or devices.

[0024] According to an embodiment of the application, an embodiment of a method for detecting the working state of a secondary circuit is provided. It is to be understood that the steps shown in the flowchart of the drawings can be executed in a computer system, such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described herein can be executed in an order different from that shown herein.

[0025] Figure 1 is a flowchart of a method for detecting the working state of a secondary circuit according to an embodiment of the application, as shown in Figure 1 The method can include the following steps:

[0026] Step S101, obtaining the connection state of the conduction pulse in the secondary circuit.

[0027] In the technical solution provided by the above step S101 of the application, the connection state can be an on state or an off state.

[0028] In this embodiment, the connection state of the conduction pulse in the secondary circuit is obtained. For example, the connection line of the conduction pulse is checked, so that the connection state of the conduction pulse in the secondary circuit is obtained through the connection line. This is only an example and does not limit the specific method of obtaining the connection state of the conduction pulse in the secondary circuit.

[0029] Step S102, in response to the connection state being an on state, obtaining the current and voltage in the secondary circuit.

[0030] In the technical solution provided by the above step S102 of the application, after obtaining the connection state of the conduction pulse in the secondary circuit in step S101, when the connection state is an on state, the current and voltage in the secondary circuit are obtained.

[0031] In this embodiment, when the connection state is an on state, it indicates that the pulse in the circuit is in a normal state at this time, and based on this, the current and voltage in the secondary circuit are obtained.

[0032] For example, the ammeter and voltmeter are used to measure the current and voltage in the secondary circuit, which is only an example and does not limit the specific method of obtaining the current and voltage in the secondary circuit.

[0033] In step S103, the working state of the secondary circuit is determined based on the current and voltage.

[0034] In the technical solution provided by the above step S103 of the present application, the working state can be a normal working state or an abnormal working state. The abnormal working state can at least include a press plate open circuit or a loop abnormality.

[0035] In this embodiment, after the current and voltage in the secondary circuit are obtained in step S102, the working state of the secondary circuit is determined based on the current and voltage.

[0036] Optionally, the current is compared with the ideal current value. When the current is close to the ideal current value, it indicates that the current in the secondary circuit is normal, and based on this, it can be determined that the secondary circuit is in a normal working state.

[0037] Optionally, when the current is greatly different from the ideal current value, it indicates that the current in the secondary circuit is abnormal, and based on this, it can be determined that the secondary circuit is in an abnormal working state.

[0038] For example, the current flowing through the loop is measured synchronously during the time when the conduction pulse is turned on. If the conduction current is close to the ideal value, it indicates that the secondary circuit is good, otherwise, it indicates that the press plate is open or the loop is abnormal.

[0039] Optionally, when the voltage in the secondary circuit exists, it indicates that the secondary circuit is normal, that is, the secondary circuit is in a normal working state.

[0040] For example, the conduction pulse is turned on at an extreme time, and the voltage point is detected. If the voltage is detected, it is determined that the secondary circuit is normal, otherwise, the secondary circuit is not normal.

[0041] In step S104, in response to the working state being an abnormal working state, abnormal information of the secondary circuit in the abnormal working state is output.

[0042] In the technical solution provided by the above step S104 of the present application, the abnormal information at least includes the on-off condition of the full loop in the secondary circuit and the communication function.

[0043] In this embodiment, after the working state of the secondary circuit is determined in step S103, when the working state is an abnormal working state, abnormal information of the secondary circuit in the abnormal working state is output. For example, the secondary circuit is in the abnormal working state is output in the form of voice and light, which is only an example and does not limit the specific method of outputting the abnormal information of the secondary circuit in the abnormal working state.

[0044] For example, when the working state is an abnormal working state, a sound and light alarm function is provided, and the abnormality is found by voice and light.

[0045] It should be noted that the above embodiment can be executed by the load control device evaluation system.

[0046] The above steps S101 to S104 of the present application, the connection state of the conduction pulse in the secondary circuit is obtained; the current and voltage in the secondary circuit are obtained in response to the connection state being the on state; the working state of the secondary circuit is determined based on the current and voltage; and the abnormal information of the secondary circuit in the abnormal working state is output in response to the working state being the abnormal working state. That is, the current and voltage in the secondary circuit when the conduction pulse is in the on state are obtained, the working state of the secondary circuit is determined according to the current and voltage, and the abnormal information of the secondary circuit in the abnormal working state is determined, thereby solving the technical problem that the state of the secondary circuit in the power system cannot be detected, and achieving the technical effect of detecting the state of the secondary circuit in the power system.

[0047] The above method of this embodiment will be further introduced below.

[0048] As an optional embodiment, the working state of the secondary circuit is determined based on the current, including: obtaining a preset normal current; performing difference operation on the current and the preset normal current to determine a current difference; and determining the working state of the secondary circuit based on the current difference.

[0049] In this embodiment, the preset normal current, i.e. the ideal current value, is obtained, and the difference operation is performed on the current and the preset normal current to determine the current difference.

[0050] Optionally, since the on of the secondary circuit requires a current of about 4A and the closing coil of the circuit breaker is connected for more than 10ms to connect the disconnecting coil, the working state of the secondary circuit can be determined by processing the current value and the preset normal current based on the characteristics of the circuit breaker.

[0051] Optionally, after the current difference is determined, the working state of the secondary circuit is determined according to the current difference, and the specific determination method is as follows.

[0052] As an optional embodiment, the working state of the secondary circuit is determined based on the current difference, including: in response to the current difference being less than or equal to a current difference threshold, determining that the working state is a normal working state; and in response to the current difference being greater than the current difference threshold, determining that the working state is an abnormal working state.

[0053] In this embodiment, the current difference is compared with the current difference threshold, and when the current difference is less than or equal to the current difference threshold, it indicates that the current in the secondary circuit is close to the preset normal current, and based on this, it can be determined that the working state is a normal working state.

[0054] Optionally, when the current difference is greater than the current difference threshold, it indicates that the current in the secondary circuit is greatly different from the preset normal current, and based on this, it can be determined that the working state is an abnormal working state.

[0055] For example, the closing of the secondary circuit requires a current of about 4A and a time of more than 10ms to turn on the closing coil of the circuit breaker, and based on this characteristic of the circuit breaker, an extremely on-pulse can be designed to turn on the secondary circuit through a current-limiting resistor, and during the on-pulse, it is measured whether there is current flowing through the circuit, and if the on-current is close to the ideal value, it indicates that the secondary circuit is good, otherwise, it indicates that the pressure plate is open or the circuit is abnormal.

[0056] As an optional embodiment, the working state of the secondary circuit is determined based on the voltage, including: comparing the voltage with a preset voltage threshold to obtain a comparison result; and determining the working state of the secondary circuit based on the comparison result.

[0057] In this embodiment, the voltage of the detection voltage point is compared with the preset voltage threshold, and the working state of the secondary circuit is determined according to the comparison result. The specific determination method is as follows.

[0058] Optionally, the potential is determined according to the voltage, and thus the working state of the secondary circuit is determined according to the potential difference. For example, in a normal case, the potential difference measured is between +KM and -KM, if the pressure plate is forgotten to be closed after maintenance, no potential difference will be measured between the two groups, and if the contact is poor, a smaller potential difference will be measured, and thus it can be determined based on this whether the secondary circuit is normal.

[0059] As an optional embodiment, the working state of the secondary circuit is determined based on the comparison result, including: in response to the voltage being greater than a preset voltage threshold, determining that the working state is a normal working state; and in response to the voltage being less than or equal to the preset voltage threshold, determining that the working state is an abnormal working state.

[0060] In this embodiment, when the voltage is greater than the preset voltage threshold, it indicates that there is voltage in the secondary circuit at this time, and based on this, it can be determined that the working state is a normal working state.

[0061] Optionally, when the voltage is less than or equal to a preset voltage threshold, it indicates that there is no voltage in the secondary circuit at this time. Based on this, the working state can be determined to be an abnormal working state.

[0062] For example, the conduction pulse is turned on at an extreme time, and if a voltage is detected at the voltage detection point, the secondary circuit is determined to be normal; otherwise, the secondary circuit is abnormal.

[0063] As an optional embodiment, the method for detecting the working state of the secondary circuit further includes: in response to an abnormal working state, uploading the detection result to the terminal and detecting the operating status of the equipment in the secondary circuit.

[0064] In this embodiment, when the operating state is abnormal, the detection results are uploaded to the terminal, and the operating status of the devices in the secondary circuit is detected. For example, the operating status of the devices in the secondary circuit is measured through the detection module.

[0065] For example, it can monitor the status of the circuit in real time and can also detect faulty equipment. In the field detection mode, it is equipped with audible and visual alarm functions, and will provide voice and light prompts when an abnormality is detected.

[0066] It should be noted that the above embodiments can be implemented through a load control device evaluation system.

[0067] In this embodiment, the connection state of the conduction pulse in the secondary circuit is acquired; in response to the connection state being "on", the current and voltage in the secondary circuit are acquired; based on the current and voltage, the operating state of the secondary circuit is determined; in response to the operating state being an abnormal operating state, the abnormal information of the secondary circuit under the abnormal operating state is output. In other words, this embodiment of the invention acquires the current and voltage in the secondary circuit when the conduction pulse is in the "on" state, determines the operating state of the secondary circuit based on the current and voltage, thereby determining the abnormal information of the secondary circuit under the abnormal operating state, thus solving the technical problem of being unable to detect the state of the secondary circuit in a power system, and achieving the technical effect of detecting the state of the secondary circuit in a power system.

[0068] The technical solutions of the embodiments of the present invention will be illustrated below with reference to preferred embodiments.

[0069] Currently, with economic development and the improvement of residents' living standards, electricity demand is constantly increasing. To meet the needs of economic and social development, the power distribution network, through the comprehensive application of technologies such as automatic control, electronics, computers, and communications, as well as high-performance power distribution equipment, has entered the era of automation. With the vigorous development of automation, the pressure of operation and maintenance has also increased. Failures in power distribution network automation terminals can be caused by a variety of reasons, commonly including communication problems, power supply failures, hardware failures, software program problems, and improper human operation.

[0070] While effective solutions exist for communication issues in related technologies, secondary circuit continuity faults can only be detected when the circuit needs to operate. By the time they occur, the terminal protection has already failed to operate, tripping has failed, or remote control has failed. This directly impacts the effectiveness of automation terminals and the reliability of power supply. Furthermore, early distribution network automation terminals lacked self-testing functions, making it impossible to detect the continuity of secondary circuits. Existing self-testing in distribution network automation terminals is also concentrated on software or the main board, lacking detection of the secondary circuit status. Therefore, there is a technical problem of being unable to detect the status of secondary circuits in the power system. Currently, no effective solution has been proposed to address this technical problem of the inability to detect the status of secondary circuits in the power system.

[0071] However, this invention proposes a novel and universal method for detecting the continuity of secondary circuits. During the duration of the conduction pulse, it simultaneously measures whether current and voltage flow through the circuit. If the current is close to the ideal value, the secondary circuit is considered good; otherwise, it indicates an open circuit in the pressure plate or a circuit malfunction. The conduction pulse is applied at an extreme time, and voltage is detected simultaneously. If voltage is detected, the secondary circuit is considered normal; otherwise, it is considered abnormal. This solves the technical problem of not being able to detect the status of secondary circuits in power systems and achieves the technical effect of detecting the status of secondary circuits in power systems.

[0072] The embodiments of the present invention will be further described below.

[0073] Figure 2 This is a schematic diagram of a novel power system load control device evaluation system according to an embodiment of the present invention, such as... Figure 2 As shown, the load control device evaluation system includes four hard-plate interconnections: 1LP protection trip plate, 2LP protection closing plate, 3LP remote control trip plate, and 4LP remote control closing plate. It includes multi-dimensional statistics on online real-time detection and system archive acceptance rate, terminal online rate, branch load acquisition completeness rate, branch load acquisition timeliness rate, action success rate, and load response capacity.

[0074] In this embodiment, when the circuit breaker is in the open position, turning on relays OUT2 and OUT4 will connect the closing circuit. If 2LP or 4LP has poor contact, even if OUT2 or OUT4 is turned on, the closing coil may not be able to connect and the circuit breaker will close. Therefore, under normal circumstances, the potential difference between 5D:3-5D:4 or 5D:7-5D:8 is the potential difference between +KM and -KM. If the pressure plates 2LP and 4LP are not closed after maintenance, no potential difference will be measured between these two sets. If 2LP and 4LP have poor contact, a smaller potential difference will be measured. Therefore, it is possible to measure whether the secondary circuit is normal.

[0075] Optionally, the normal operation of secondary circuits is crucial for the safety, stability, and reliability of electrical systems. Secondary circuits are primarily used to protect, control, and monitor electrical equipment and systems, such as relays, circuit breakers, and transformers. Faults or abnormal conditions in secondary circuits can lead to serious consequences such as equipment failure, short circuits, and fires.

[0076] Optionally, potential difference refers to the difference in electric potential between two points in an electric field. Potential difference is an important parameter describing energy changes in an electric field, usually represented by the symbol ΔV, and its unit is volt (V). The larger the potential difference, the greater the potential difference between the two points, and the greater the energy change when a charge moves between these two points. Potential difference can be represented by the direction and density of electric field lines, which point in the direction of decreasing potential.

[0077] Optionally, a circuit breaker is a safety device used to protect circuits by automatically disconnecting them to prevent overload or short circuits. When the current in the circuit exceeds the rated current of the circuit breaker, it automatically disconnects the circuit, preventing further current flow and thus protecting electrical equipment and personnel. Circuit breakers are commonly used in residential, commercial, and industrial electrical systems and are an essential component of these systems.

[0078] Figure 3 This is a schematic diagram of an evaluation device for a power system load control device according to an embodiment of the present invention, such as... Figure 3 As shown, the secondary circuit requires a current of about 4A and a duration of more than 10ms to connect the circuit breaker's closing and opening coils. Taking advantage of this characteristic of the circuit breaker, an extreme conduction pulse can be designed and the secondary circuit can be connected through a current-limiting resistor.

[0079] In this embodiment, the circuit is synchronously measured for current flow during the conduction pulse. If the conduction current is close to the ideal value, it indicates that the secondary circuit is good; otherwise, it indicates that the pressure plate is open or the circuit is abnormal.

[0080] Optionally, the conduction pulse is turned on at an extreme time, and if a voltage is detected at the voltage detection point, the secondary circuit is determined to be normal; otherwise, the secondary circuit is abnormal.

[0081] Optionally, the circuit is also designed with a limit switch connected to a secondary chamber and remote and local auxiliary contacts to make the judgment logic rigorous.

[0082] Optionally, a 485 communication loop can be designed to send the results back to the automation terminal and upload the signal to the background monitoring.

[0083] Optionally, a real-time monitoring mode and an on-site detection mode can be designed. The circuit status can be monitored in real time, and faulty equipment can also be detected. The on-site detection mode is equipped with an audible and visual alarm function. When an abnormality is detected, there will be a voice prompt and a light flashing.

[0084] Optionally, the secondary circuit of the automation terminal is a crucial component of the power system. It consists of interconnected secondary equipment (such as instrument transformers, measuring instruments, relays, and automatic devices) forming an electrical circuit for monitoring, controlling, regulating, and protecting primary equipment. This mainly refers to measurement circuits, relay protection circuits, switch control and signal circuits, operating power supply circuits, and electrical interlocking circuits.

[0085] Optionally, a measurement circuit is used to measure parameters such as voltage, current, and power at the terminal, and transmits the measurement results to the terminal for measurement and protection actions. A measurement circuit typically includes components such as sensors, signal conditioning circuits, and data acquisition systems, which enable real-time monitoring and recording of changes in electrical parameters. Measurement circuits have wide applications in laboratory research, engineering design, and manufacturing. Common measurement circuits include instruments such as oscilloscopes, multimeters, and bridges.

[0086] Optionally, a relay protection circuit is a protective device used in power systems to monitor faults and abnormal conditions within the power system and take corresponding measures to protect the safe operation of power equipment and systems. A relay protection circuit typically consists of relays, a power supply, a signal receiving device, and an execution device. Its working principle involves monitoring parameters such as current, voltage, and frequency. When a fault or abnormal condition occurs in the system, the relay protection circuit will, according to preset protection logic and set parameters, issue a signal to cut off the power supply or take other measures to ensure the safe operation of the power system. Relay protection circuits play a crucial role in power systems, effectively protecting power equipment and systems and preventing the escalation and damage of faults.

[0087] Optionally, switch control and signal loops are used to control the opening and closing operations of switching equipment and transmit relevant signals to terminals. Switch control is a common electrical control method that uses the on / off state of a switch to open or close a circuit or change the circuit's connection method. Switches can be manual switches, automatic switches, or remote control switches. In a circuit, switches are typically used to control the path of current, thereby controlling electrical appliances. For example, a switch controlling a light can control the light's on / off state, and a switch controlling a motor can control the motor's start and stop. A signal loop refers to the path in a circuit that transmits signals, used to transmit control signals or data signals. In a control system, signal loops are typically used to transmit control signals; for example, a sensor transmits collected data signals to a controller, which then controls actuators based on the signals.

[0088] Optionally, in modern automated control systems, switch control and signal loops are often combined. Switch control is used to control the equipment, while signal loops transmit control signals, thereby achieving automated control. For example, automatic control of a production line can be achieved through switch control and signal loops in a PLC control system.

[0089] Optionally, operate the power circuit: provide the necessary power to various devices in the secondary circuit to ensure their normal operation. Operating the power circuit typically includes: ensuring all devices are switched off to prevent accidental electric shock or damage. Locate the control switch or button for the power circuit, usually located near a power outlet or power panel. Switch the switch or button from the "off" to the "on" position to activate the power circuit. Confirm that the power circuit has been successfully activated by checking if the devices have started working or if the indicator lights are illuminated. After use, always turn off the power circuit to avoid wasting energy or creating safety hazards.

[0090] Optionally, an electrical interlocking circuit is used to implement the electrical interlocking function of equipment such as circuit breakers and disconnect switches to prevent accidents caused by misoperation. It is a control system used to protect electrical equipment and systems. By adding an interlocking device to the circuit, it ensures that the circuit can only be closed or opened under certain conditions. This ensures that the equipment can operate normally under specific circumstances, avoiding equipment damage or safety accidents caused by misoperation or malfunction.

[0091] Optionally, an electrical interlocking circuit typically consists of an interlocking switch, an interlocking relay, and an interlocking button. The interlocking switch is locked under specific conditions and can only be unlocked when those conditions are met. The interlocking relay monitors the status of the interlocking switch and controls the closing or opening of the circuit as needed. The interlocking button is used to manually control the status of the interlocking switch.

[0092] Optionally, electrical interlocking circuits are widely used in industrial production to protect various equipment and systems, such as motors, transmission systems, and lighting systems. They improve equipment safety and reliability, reduce malfunctions and accidents, and protect the safety of personnel and equipment.

[0093] Optionally, an automated terminal secondary circuit continuity detection device: This is an automated device specifically designed to detect the continuity status of secondary circuits (including measurement circuits, relay protection circuits, control circuits, signal circuits, etc.) in an electrical system.

[0094] Optionally, it determines whether the circuit is working properly by detecting the electrical connections of each node or component in the secondary circuit, thereby ensuring the safe and stable operation of the power system.

[0095] Optionally, a turn-on pulse refers to the process in electronics of transmitting current or voltage signals through a circuit by controlling a switch or component. Turn-on pulses are commonly used to control the switching state of circuits or transmit data, and are one of the common operating methods in digital circuits. Through turn-on pulses, the transmission and processing of digital signals can be realized, thereby enabling the functions of various electronic devices.

[0096] Optionally, a relay is an electrical device used to control the switching on and off of a circuit or an appliance. It can control the on / off state of another circuit by switching on one circuit, serving functions such as amplifying circuit signals, isolating circuits, and protecting electrical appliances. A relay typically consists of components such as an electromagnet, contacts, and a spring. When the electromagnet is energized by a current, the contacts close or open, thereby controlling the on / off state of the circuit. Relays are widely used in various electrical control systems, such as household appliances, industrial automation, and traffic signal control.

[0097] Optionally, a measurement loop is a circuit used to measure various parameters in a circuit. It typically consists of a power supply, a signal source, a measuring instrument, and the circuit under test. The function of the measurement loop is to apply voltage or current to the circuit under test and then use the measuring instrument to measure parameters such as voltage, current, and impedance in the circuit under test, thereby understanding the performance and characteristics of the circuit under test.

[0098] Optionally, common measurement circuits include voltage measurement circuits, current measurement circuits, impedance measurement circuits, etc. In practical applications, measurement circuits are widely used in electronics, communications, instrumentation and other fields.

[0099] Optionally, a relay protection circuit is a protection mechanism used in a power system to protect equipment and lines. It monitors parameters such as current and voltage in the power system, and once an abnormality is detected (such as a short circuit or overload), it sends a signal to trigger the protection device to operate, thereby protecting the power equipment and lines from damage.

[0100] Optionally, a relay protection circuit typically consists of relays, current transformers, voltage transformers, and switching equipment. Its working principle is to use relays to transmit and process signals based on changes in parameters such as current and voltage in the power system, and finally trigger the switching equipment to protect the equipment and lines.

[0101] Optionally, relay protection circuits play a crucial role in power systems, enabling them to respond promptly and accurately to abnormal situations in the power system and ensure its safe and stable operation.

[0102] Alternatively, a control loop refers to a feedback system used to monitor and regulate a variable in the system to ensure stable system operation and achieve predetermined goals. A control loop typically includes three main parts: a sensor, a controller, and an actuator.

[0103] Optionally, sensors are used to measure variables in the system, such as temperature, pressure, and flow rate, and transmit this information to the controller. The controller compares the sensor feedback with preset target values ​​and calculates the necessary control adjustments using an algorithm. Finally, the actuator adjusts the system's operating variables according to the controller's instructions to achieve the desired control effect.

[0104] Optionally, control loops can be applied to various systems, such as automated production lines, home appliances, and automotive control systems, to achieve automated and intelligent control. The design and debugging of control loops is one of the most important tasks for engineers in the field of system control, effectively improving system performance and stability.

[0105] Optionally, a signal loop is a circuit used to process and transmit signals. It can amplify, filter, and regulate signals, and can also transmit signals to other devices or systems. A signal loop typically consists of multiple components, such as resistors, capacitors, inductors, and amplifiers. Through the combination and connection of these components, different signal processing functions can be achieved. In electronic equipment and communication systems, signal loops play a crucial role in helping signals to be transmitted and processed correctly, ensuring the normal operation of the system.

[0106] In this embodiment, the circuit continuity is detected by connecting the conduction pulse at an extreme time. This allows for the detection of the continuity of the entire circuit, rather than a single node. Furthermore, it includes communication functionality, transmitting the results via communication, which greatly reduces manual on-site operation, saves a significant amount of time, prevents automation terminal failures early, reduces grid risks, solves the technical problem of not being able to detect the status of secondary circuits in the power system, and achieves the technical effect of detecting the status of secondary circuits in the power system.

[0107] In this embodiment, during the duration of the conduction pulse, the flow of current and voltage in the circuit is simultaneously measured. If the current is close to the ideal value, the secondary circuit is considered good; otherwise, the pressure plate is open or the circuit is abnormal. The conduction pulse is activated at an extreme time, and voltage is detected simultaneously. If voltage is detected, the secondary circuit is considered normal; otherwise, the secondary circuit is abnormal. This solves the technical problem of not being able to detect the status of secondary circuits in a power system and achieves the technical effect of detecting the status of secondary circuits in a power system.

[0108] According to an embodiment of the present invention, a device for detecting the operating state of a secondary circuit is also provided. It should be noted that this device for detecting the operating state of a secondary circuit can be used to execute the method for detecting the operating state of a secondary circuit in the method embodiment.

[0109] Figure 4 This is a schematic diagram of a device for detecting the operating state of a secondary circuit according to an embodiment of the present invention.Figure 4 As shown, the detection device 400 for the working state of the secondary circuit may include: a first acquisition unit 401, a second acquisition unit 402, a determination unit 403, and an output unit 404.

[0110] The first acquisition unit 401 is used to acquire the connection status of the conduction pulse in the secondary circuit.

[0111] The second acquisition unit 402 is used to acquire the current and voltage in the secondary circuit in response to the connection state being on.

[0112] The determination unit 403 is used to determine the operating state of the secondary circuit based on current and voltage.

[0113] Output unit 404 is used to output abnormal information of the secondary circuit in response to an abnormal working state.

[0114] Optionally, the determining unit 403 may include: a first acquisition module for acquiring a preset normal current; a calculation module for performing a difference calculation between the current and the preset normal current to determine the current difference; and a first determining module for determining the operating state of the secondary circuit based on the current difference.

[0115] Optionally, the first determining module may include: a first determining submodule, used to determine the working state as a normal working state in response to the current difference being less than or equal to a current difference threshold; and a second determining submodule, used to determine the working state as an abnormal working state in response to the current difference being greater than a current difference threshold.

[0116] Optionally, the determining unit 403 may include: a comparison module for comparing the voltage with a preset voltage threshold to obtain a comparison result; and a second determining module for determining the operating state of the secondary circuit based on the comparison result.

[0117] Optionally, the second determining module may include: a third determining submodule, used to determine the working state as normal working state in response to the voltage being greater than a preset voltage threshold; and a fourth determining submodule, used to determine the working state as abnormal working state in response to the voltage being less than or equal to a preset voltage threshold.

[0118] Optionally, the secondary circuit operating status detection device 400 may further include: an uploading unit, used to upload the detection results to the terminal in response to an abnormal operating status, and to detect the operating status of the equipment in the secondary circuit.

[0119] In this embodiment, the connection state of the conduction pulse in the secondary circuit is acquired; in response to the connection state being "on", the current and voltage in the secondary circuit are acquired; based on the current and voltage, the operating state of the secondary circuit is determined; in response to the operating state being an abnormal operating state, the abnormal information of the secondary circuit under the abnormal operating state is output. In other words, this embodiment of the invention acquires the current and voltage in the secondary circuit when the conduction pulse is in the "on" state, determines the operating state of the secondary circuit based on the current and voltage, thereby determining the abnormal information of the secondary circuit under the abnormal operating state, thus solving the technical problem of being unable to detect the state of the secondary circuit in a power system, and achieving the technical effect of detecting the state of the secondary circuit in a power system.

[0120] According to an embodiment of the present invention, a computer-readable storage medium is also provided, the storage medium including a stored program, wherein the program execution method embodiment includes a method for detecting the operating state of a secondary circuit.

[0121] According to an embodiment of the present invention, a processor is also provided for running a program, wherein the program executes the method for detecting the working state of the secondary circuit in the method embodiment.

[0122] According to an embodiment of the present invention, a computer program product is also provided, the computer program product including computer instructions, which, when executed by a processor, implement the method for detecting the working state of the secondary loop in the method embodiment.

[0123] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0124] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0125] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between units or modules may be electrical or other forms.

[0126] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0127] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0128] If the integrated unit is implemented as a software functional unit and sold or used as an independent functional component, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software functional component. This computer software functional component is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard drive, magnetic disk, or optical disk.

[0129] The above are merely 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 principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for detecting the operating state of a secondary circuit, characterized in that, include: When the secondary circuit is not in operation, the secondary circuit is turned on by a conduction pulse, and the connection status of the conduction pulse in the secondary circuit is obtained; In response to the connection state being on, the current and voltage in the secondary circuit are synchronously acquired during the time the conduction pulse is on. The operating state of the secondary circuit is determined based on the current and the voltage. In response to the operating state being an abnormal operating state, the abnormal information of the secondary circuit under the abnormal operating state is output; The step of determining the operating state of the secondary circuit based on the current includes: acquiring a preset normal current; performing a difference calculation between the current and the preset normal current to determine a current difference; and determining the operating state of the secondary circuit based on the current difference.

2. The method according to claim 1, characterized in that, Determining the operating state of the secondary circuit based on the current difference includes: In response to the current difference being less than or equal to the current difference threshold, the operating state is determined to be a normal operating state; In response to the current difference being greater than the current difference threshold, the operating state is determined to be the abnormal operating state.

3. The method according to claim 1, characterized in that, Determining the operating state of the secondary circuit based on the voltage includes: The voltage is compared with a preset voltage threshold to obtain the comparison result; Based on the comparison results, the operating state of the secondary circuit is determined.

4. The method according to claim 3, characterized in that, Based on the comparison results, the operating state of the secondary circuit is determined, including: In response to the voltage being greater than the preset voltage threshold, the operating state is determined to be a normal operating state; In response to the voltage being less than or equal to the preset voltage threshold, the operating state is determined to be the abnormal operating state.

5. The method according to any one of claims 1-4, characterized in that, The method further includes: In response to the abnormal working state, the detection result is uploaded to the terminal, and the operating status of the equipment in the secondary circuit is detected.

6. A device for detecting the operating state of a secondary circuit, characterized in that, include: The first acquisition unit is used to, when the secondary circuit is not in operation, turn on the secondary circuit by a conduction pulse and acquire the connection status of the conduction pulse in the secondary circuit; The second acquisition unit is used to synchronously acquire the current and voltage in the secondary circuit during the time the conduction pulse is turned on in response to the connection state being turned on. A determining unit is used to determine the operating state of the secondary circuit based on the current and the voltage; The output unit is used to output the abnormal information of the secondary circuit in the abnormal working state in response to the working state being an abnormal working state. The determining unit is further configured to acquire a preset normal current; perform a difference calculation between the current and the preset normal current to determine the current difference; The operating state of the secondary circuit is determined based on the current difference.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein when the program is run by a processor, it controls the device in which the storage medium is located to perform the method according to any one of claims 1 to 5.

8. A processor, characterized in that, The processor is used to run a program, wherein the program executes the method according to any one of claims 1 to 5 when it runs.

9. A computer program product, characterized in that, The computer program product includes computer instructions that, when executed by a processor, implement the method described in any one of claims 1 to 5.

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