Protection system and method for linear plasma arc striking

Abstract

The invention discloses a protection system and method for linear plasma arc striking. The protection system comprises a detection module, a data processing module, a control module, a protection execution module, a display and alarm module and a communication module. Various parameters in the arc striking process are monitored in real time through the detection module, abnormal conditions can be found in time, and accurate data support is provided for fault diagnosis and implementation of protective measures. And the data processing module analyzes and processes the data by using an advanced algorithm, so that the accuracy and reliability of fault diagnosis are improved, and whether abnormity exists in the arc striking process can be quickly judged. And the control module and the protection execution module can take corresponding protection measures in time according to a fault diagnosis result, so that the safety of arc striking equipment and operators is effectively protected, and the stability and the success rate of the arc striking process are improved. And the display and alarm module and the communication module realize real-time monitoring and remote management of the arc striking process, so that an operator can conveniently know the working state of the system in time.

Description

Technical Field

[0001] The present invention relates to the technical field of plasma arc ignition, and in particular to a protection system and method for linear plasma arc ignition. Background Art

[0002] The linear plasma arc ignition process creates harsh environments such as high temperatures, high pressures, and strong electromagnetic interference. These factors not only damage the arc ignition equipment itself, affecting its service life and stability, but also pose a threat to operator safety. Furthermore, abnormalities that may occur during the arc ignition process, such as arc flicker and arc instability, can lead to arc ignition failure and reduce production efficiency. Therefore, an effective protection system and method are urgently needed to improve the safety and stability of linear plasma arc ignition. Summary of the Invention

[0003] The object of the present invention is to provide a linear plasma arc protection system and method to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a linear plasma arc ignition protection system, comprising a detection module, a data processing module, a control module, a protection execution module, a display and alarm module, and a communication module;

[0005] The detection module is used to detect various parameters in the linear plasma arc ignition process in real time, including arc voltage, arc current, arc ignition device temperature, and electromagnetic intensity of the surrounding environment;

[0006] The data processing module receives the various parameter data transmitted by the detection module, performs pre-processing of filtering, amplification, and analog-to-digital conversion on the data, and then uses a preset algorithm to analyze and process the data to determine whether the arc ignition process is normal or whether there are any abnormal conditions;

[0007] The control module outputs a control signal to maintain the normal operation of the arc striking device according to the judgment result of the data processing module when the arc striking process is normal; when an abnormal situation is detected, a control instruction is issued in time to take corresponding protective measures, including but not limited to adjusting the arc striking parameters, cutting off the power supply, and starting the cooling system;

[0008] The protection execution module executes corresponding protection measures according to the instructions of the control module;

[0009] The display and alarm module is used to display various parameters and working status during the arc striking process, and when an abnormal situation is detected, an audible and visual alarm signal is issued to alert the operator;

[0010] The communication module realizes data transmission and communication between the protection system and external equipment or a monitoring center, so that operators can remotely monitor the arc ignition process and the working status of the protection system.

[0011] Preferably, the detection module is composed of multiple sensors, specifically as follows:

[0012] Voltage sensor: A high-precision Hall voltage sensor is used to detect the voltage at both ends of the arc. Its working principle is based on the Hall effect. When current passes through the Hall element, a Hall voltage is generated in the direction perpendicular to the current and magnetic field. The arc voltage can be obtained by measuring the Hall voltage.

[0013] Current sensor: A Rogowski coil current sensor is used to measure arc current in a contactless manner. The induced electromotive force of the Rogowski coil is proportional to the rate of change of the measured current. The induced electromotive force is converted into a voltage signal proportional to the current through an integrating circuit, thereby realizing the measurement of arc current.

[0014] Temperature sensor: A thermocouple temperature sensor is installed at key locations of the arc striking device, such as electrodes and nozzles, to monitor the temperature of these locations in real time. The working principle of a thermocouple is based on the Seebeck effect. Two conductors made of different materials form a closed circuit. When the temperatures at the two junctions are different, a thermoelectric potential is generated in the circuit. The temperature value can be obtained by measuring the thermoelectric potential.

[0015] Electromagnetic intensity sensor: An electromagnetic radiation sensor is used to detect the electromagnetic intensity of the surrounding environment during the arc striking process; the sensor can sense the changes in the electromagnetic field in space and convert them into electrical signals for output.

[0016] Preferably, the data processing module includes a preprocessing unit and an algorithm processing unit;

[0017] Pre-processing unit: Filters the analog signal output by the detection module to remove noise interference and amplifies the signal to meet the requirements of subsequent analog-to-digital conversion. The filtering process uses a digital filter, and its transfer function is:

[0018]

[0019] Among them, w c is the cutoff frequency, and n is the filter order. By properly selecting the cutoff frequency and order, noise can be effectively filtered out.

[0020] Algorithm processing unit: Use the fault diagnosis algorithm to analyze the pre-processed data to determine whether there is any abnormality in the arc initiation process; adopt a fault diagnosis method based on threshold comparison to set the normal threshold range of arc voltage, current, temperature and electromagnetic intensity. When the detected data exceeds the range, it is judged as an abnormal situation.

[0021] Preferably, the control module includes a controller and a drive circuit;

[0022] Controller: Uses a high-performance microprocessor, such as an ARM processor, as the control core; the controller receives the output signal of the data processing module and generates control instructions according to the preset control strategy;

[0023] Drive circuit: Converts the control instructions output by the controller into signals that can drive the actuator, such as relay drive signals, motor drive signals, etc. The drive circuit uses power amplifier devices, such as field-effect transistors (MOSFETs) and insulated gate bipolar transistors (IGBTs), to provide sufficient drive power.

[0024] Preferably, the protection execution module includes a power protection submodule, a cooling submodule, an electromagnetic shielding submodule and a mechanical protection submodule;

[0025] Power supply protection submodule: When an abnormal situation is detected, such as excessive arc current, too high or too low voltage, the power supply of the arc striking device is cut off through a relay to prevent equipment damage. At the same time, it also includes overvoltage protection and overcurrent protection circuits to monitor and protect the power supply in real time.

[0026] Cooling submodule: During the arc striking process, the arc striking device generates a large amount of heat, causing the temperature to rise. The cooling submodule uses circulating water cooling or air cooling to cool the arc striking device and control the temperature within a reasonable range. The cooling system includes a water pump, radiator, fan, and other components. The operating status of the cooling system is automatically adjusted based on the feedback signal from the temperature sensor.

[0027] Electromagnetic shielding submodule: To reduce the impact of electromagnetic interference generated during arc striking on surrounding equipment and personnel, an electromagnetic shielding cover is installed around the arc striking device. The electromagnetic shielding cover is made of materials with good conductive properties, such as copper and aluminum, which can effectively block the propagation of electromagnetic radiation.

[0028] Mechanical protection submodule: Protect the mechanical structure of the arc striking device, such as setting up protective covers and guardrails, to prevent personnel from coming into contact with high-temperature and high-voltage components and avoid safety accidents.

[0029] Preferably, the display screen in the display and alarm module adopts a liquid crystal display LCD or a light-emitting diode display LED to display the arc voltage, current, temperature, and electromagnetic intensity parameters in real time; the indicator light is used to display the working status of the system, such as whether the power is connected, whether the protective measures are activated, etc.; the buzzer emits a sound alarm signal when an abnormal situation occurs.

[0030] Preferably, the communication module supports multiple communication protocols, including but not limited to RS-485, Ethernet, and wireless communication, and the appropriate communication method is selected according to actual needs.

[0031] A protection method for a linear plasma arc protection system comprises the following steps:

[0032] Step 1, parameter detection: the various sensors in the detection module collect the arc voltage, current, arc ignition device temperature, and ambient electromagnetic intensity parameters during the arc ignition process in real time, and transmit these analog signals to the data processing module;

[0033] Step 2, data preprocessing: The preprocessing unit of the data processing module filters, amplifies and performs analog-to-digital conversion on the collected analog signal, converting it into a digital signal for subsequent algorithm processing;

[0034] Step 3, fault diagnosis: The algorithm processing unit uses a preset fault diagnosis algorithm to analyze the pre-processed digital signal to determine whether the arc ignition process is normal. For example, the detected arc voltage, current, temperature, and electromagnetic intensity parameters are compared with the preset normal threshold range. If one or more parameters exceed the threshold range, it is determined to be an abnormal situation.

[0035] Step 4: Control Decision: The controller of the control module makes a control decision based on the fault diagnosis results. If the arc striking process is normal, the controller outputs a control signal to maintain the normal operation of the arc striking device. If an abnormality is detected, the controller generates corresponding control instructions based on the type and severity of the abnormality, such as adjusting the arc striking parameters (such as reducing the arc striking current, adjusting the electrode spacing, etc.), starting the cooling system, and cutting off the power supply.

[0036] Step 5, protection execution: The protection execution module executes corresponding protection measures according to the instructions of the control module; for example, the power protection submodule cuts off the power supply, the cooling submodule starts the cooling system, the electromagnetic shielding submodule strengthens the electromagnetic shielding, and the mechanical protection submodule closes the protective cover;

[0037] Step 6, display and alarm: The display and alarm module displays various parameters and working status of the arc ignition process in real time. When an abnormal situation is detected, an audible and visual alarm signal is issued to remind the operator to deal with it in time;

[0038] Step 7, data communication: The communication module transmits the working status and detection data of the protection system to external equipment or monitoring center to achieve remote monitoring and management.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] The present invention monitors various parameters in the arc striking process in real time through the detection module, can detect abnormal situations in time, and provide accurate data support for fault diagnosis and the implementation of protective measures. The data processing module uses advanced algorithms to analyze and process data, which improves the accuracy and reliability of fault diagnosis and can quickly determine whether there are abnormalities in the arc striking process. The control module and the protection execution module can take corresponding protective measures in time according to the fault diagnosis results, such as cutting off the power supply, starting the cooling system, strengthening electromagnetic shielding, etc., to effectively protect the safety of arc striking equipment and operators, and improve the stability and success rate of the arc striking process. The display and alarm module and the communication module realize real-time monitoring and remote management of the arc striking process, which makes it convenient for operators to understand the working status of the system in a timely manner, thereby improving production efficiency and management level. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a system principle diagram of the present invention;

[0042] Figure 2 It is a flow chart of the method of the present invention. DETAILED DESCRIPTION

[0043] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] See also Figure 1-2 , the present invention provides a linear plasma arc ignition protection system, including a detection module, a data processing module, a control module, a protection execution module, a display and alarm module and a communication module;

[0045] The detection module is used to detect various parameters in the linear plasma arc ignition process in real time, including arc voltage, arc current, arc ignition device temperature, and electromagnetic intensity of the surrounding environment;

[0046] The data processing module receives the various parameter data transmitted by the detection module, performs pre-processing of filtering, amplification, and analog-to-digital conversion on the data, and then uses the preset algorithm to analyze and process the data to determine whether the arc ignition process is normal or whether there are any abnormal conditions;

[0047] The control module outputs a control signal to maintain the normal operation of the arc striking device according to the judgment result of the data processing module when the arc striking process is normal; when an abnormal situation is detected, the control module promptly issues a control instruction and takes corresponding protective measures, including but not limited to adjusting the arc striking parameters, cutting off the power supply, and starting the cooling system;

[0048] The protection execution module executes corresponding protection measures according to the instructions of the control module;

[0049] The display and alarm module is used to display various parameters and working status during the arc striking process. When an abnormal situation is detected, an audible and visual alarm signal is issued to alert the operator;

[0050] The communication module realizes data transmission and communication between the protection system and external equipment or monitoring center, so that operators can remotely monitor the arc ignition process and the working status of the protection system.

[0051] The detection module consists of multiple sensors, as follows:

[0052] Voltage sensor: A high-precision Hall voltage sensor is used to detect the voltage at both ends of the arc. Its working principle is based on the Hall effect. When current passes through the Hall element, a Hall voltage is generated in the direction perpendicular to the current and magnetic field. The arc voltage can be obtained by measuring the Hall voltage.

[0053] Current sensor: A Rogowski coil current sensor is used to measure arc current in a contactless manner. The induced electromotive force of the Rogowski coil is proportional to the rate of change of the measured current. The induced electromotive force is converted into a voltage signal proportional to the current through an integrating circuit, thereby realizing the measurement of arc current.

[0054] Temperature sensor: A thermocouple temperature sensor is installed at key locations of the arc striking device, such as electrodes and nozzles, to monitor the temperature of these locations in real time. The working principle of a thermocouple is based on the Seebeck effect. Two conductors made of different materials form a closed circuit. When the temperatures at the two junctions are different, a thermoelectric potential is generated in the circuit. The temperature value can be obtained by measuring the thermoelectric potential.

[0055] Electromagnetic intensity sensor: An electromagnetic radiation sensor is used to detect the electromagnetic intensity of the surrounding environment during the arc striking process; the sensor can sense the changes in the electromagnetic field in space and convert them into electrical signals for output.

[0056] The data processing module includes a pre-processing unit and an algorithm processing unit;

[0057] Pre-processing unit: Filters the analog signal output by the detection module to remove noise interference and amplifies the signal to meet the requirements of subsequent analog-to-digital conversion. The filtering process uses a digital filter, and its transfer function is:

[0058]

[0059] Among them, w c is the cutoff frequency, and n is the filter order. By properly selecting the cutoff frequency and order, noise can be effectively filtered out.

[0060] Algorithm processing unit: Use the fault diagnosis algorithm to analyze the pre-processed data to determine whether there is any abnormality in the arc initiation process; adopt a fault diagnosis method based on threshold comparison to set the normal threshold range of arc voltage, current, temperature and electromagnetic intensity. When the detected data exceeds the range, it is judged as an abnormal situation.

[0061] The control module includes a controller and a drive circuit;

[0062] Controller: Uses a high-performance microprocessor, such as an ARM processor, as the control core; the controller receives the output signal of the data processing module and generates control instructions according to the preset control strategy;

[0063] Drive circuit: Converts the control instructions output by the controller into signals that can drive the actuator, such as relay drive signals, motor drive signals, etc. The drive circuit uses power amplifier devices, such as field-effect transistors (MOSFETs) and insulated gate bipolar transistors (IGBTs), to provide sufficient drive power.

[0064] The protection execution module includes a power protection submodule, a cooling submodule, an electromagnetic shielding submodule and a mechanical protection submodule;

[0065] Power supply protection submodule: When an abnormal situation is detected, such as excessive arc current, too high or too low voltage, the power supply of the arc striking device is cut off through a relay to prevent equipment damage. At the same time, it also includes overvoltage protection and overcurrent protection circuits to monitor and protect the power supply in real time.

[0066] Cooling submodule: During the arc striking process, the arc striking device generates a large amount of heat, causing the temperature to rise. The cooling submodule uses circulating water cooling or air cooling to cool the arc striking device and control the temperature within a reasonable range. The cooling system includes a water pump, radiator, fan, and other components. The operating status of the cooling system is automatically adjusted based on the feedback signal from the temperature sensor.

[0067] Electromagnetic shielding submodule: To reduce the impact of electromagnetic interference generated during arc striking on surrounding equipment and personnel, an electromagnetic shielding cover is installed around the arc striking device. The electromagnetic shielding cover is made of materials with good conductive properties, such as copper and aluminum, which can effectively block the propagation of electromagnetic radiation.

[0068] Mechanical protection submodule: Protect the mechanical structure of the arc striking device, such as setting up protective covers and guardrails, to prevent personnel from coming into contact with high-temperature and high-voltage components and avoid safety accidents.

[0069] The display screen in the display and alarm module uses a liquid crystal display LCD or a light-emitting diode display LED to display arc voltage, current, temperature, and electromagnetic intensity parameters in real time; the indicator light is used to display the working status of the system, such as whether the power is connected, whether the protective measures are activated, etc.; the buzzer emits a sound alarm signal when an abnormal situation occurs.

[0070] The communication module supports multiple communication protocols, including but not limited to RS-485, Ethernet, and wireless communication. Select the appropriate communication method according to actual needs.

[0071] A protection method for a linear plasma arc protection system comprises the following steps:

[0072] Step 1, parameter detection: the various sensors in the detection module collect the arc voltage, current, arc ignition device temperature, and ambient electromagnetic intensity parameters during the arc ignition process in real time, and transmit these analog signals to the data processing module;

[0073] Step 2, data preprocessing: The preprocessing unit of the data processing module filters, amplifies and performs analog-to-digital conversion on the collected analog signal, converting it into a digital signal for subsequent algorithm processing;

[0074] Step 3, fault diagnosis: The algorithm processing unit uses a preset fault diagnosis algorithm to analyze the pre-processed digital signal to determine whether the arc ignition process is normal. For example, the detected arc voltage, current, temperature, and electromagnetic intensity parameters are compared with the preset normal threshold range. If one or more parameters exceed the threshold range, it is determined to be an abnormal situation.

[0075] Step 4: Control Decision: The controller of the control module makes a control decision based on the fault diagnosis results. If the arc striking process is normal, the controller outputs a control signal to maintain the normal operation of the arc striking device. If an abnormality is detected, the controller generates corresponding control instructions based on the type and severity of the abnormality, such as adjusting the arc striking parameters (such as reducing the arc striking current, adjusting the electrode spacing, etc.), starting the cooling system, and cutting off the power supply.

[0076] Step 5, protection execution: The protection execution module executes corresponding protection measures according to the instructions of the control module; for example, the power protection submodule cuts off the power supply, the cooling submodule starts the cooling system, the electromagnetic shielding submodule strengthens the electromagnetic shielding, and the mechanical protection submodule closes the protective cover;

[0077] Step 6, display and alarm: The display and alarm module displays various parameters and working status of the arc ignition process in real time. When an abnormal situation is detected, an audible and visual alarm signal is issued to remind the operator to deal with it in time;

[0078] Step 7, data communication: The communication module transmits the working status and detection data of the protection system to external equipment or monitoring center to achieve remote monitoring and management.

[0079] Example:

[0080] In a specific industrial production scenario, the linear plasma arc ignition protection system of the present invention is used to perform arc ignition operations. First, the voltage, current, temperature, and electromagnetic intensity sensors in the detection module collect various parameters during the arc ignition process in real time and transmit analog signals to the data processing module. After the data processing module pre-processes the signals, the algorithm processing unit determines whether the arc ignition process is normal.

[0081] During the arc striking process, if the arc current suddenly increases and exceeds a preset threshold, the data processing module identifies this as an abnormality and transmits the signal to the control module. The control module's controller immediately generates a control instruction, which, through the driver circuit, controls the power protection submodule to cut off the power to the arc striking device. Simultaneously, the display and alarm module activates an audible and visual alarm signal to alert the operator.

[0082] At the same time, the cooling submodule automatically adjusts the cooling system's operating status based on feedback from the temperature sensor, cooling the arc ignition device and preventing damage from excessive temperatures. The electromagnetic shielding submodule and mechanical protection submodule also operate normally, effectively reducing electromagnetic interference and protecting personnel safety.

[0083] The protection system and method of the present invention can timely discover and handle abnormal situations during the arc striking process, thereby ensuring the safety of equipment and personnel and improving the arc striking success rate and production efficiency.

[0084] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A linear plasma arc protection system, characterized by: It includes detection module, data processing module, control module, protection execution module, display and alarm module and communication module; The detection module is used to detect various parameters in the linear plasma arc ignition process in real time, including arc voltage, arc current, arc ignition device temperature, and electromagnetic intensity of the surrounding environment; The data processing module receives the various parameter data transmitted by the detection module, performs pre-processing of filtering, amplification, and analog-to-digital conversion on the data, and then uses a preset algorithm to analyze and process the data to determine whether the arc ignition process is normal or whether there are any abnormal conditions; The control module outputs a control signal to maintain the normal operation of the arc striking device according to the judgment result of the data processing module when the arc striking process is normal; when an abnormal situation is detected, a control instruction is issued in time to take corresponding protective measures, including but not limited to adjusting the arc striking parameters, cutting off the power supply, and starting the cooling system; The protection execution module executes corresponding protection measures according to the instructions of the control module; The display and alarm module is used to display various parameters and working status during the arc striking process, and when an abnormal situation is detected, an audible and visual alarm signal is issued to alert the operator; The communication module realizes data transmission and communication between the protection system and external equipment or a monitoring center, so that operators can remotely monitor the arc ignition process and the working status of the protection system.

2. A linear plasma arc ignition protection system according to claim 1, characterized in that: The detection module is composed of multiple sensors, as follows: Voltage sensor: uses a high-precision Hall voltage sensor to detect the voltage at both ends of the arc; Current sensor: Rogowski coil current sensor is used to measure arc current in a non-contact manner; Temperature sensor: A thermocouple temperature sensor is installed at key locations of the arc striking device to monitor the temperature of these locations in real time. Electromagnetic intensity sensor: Use electromagnetic radiation sensor to detect the electromagnetic intensity of the surrounding environment during arc striking.

3. The linear plasma arc ignition protection system according to claim 1, characterized in that: The data processing module includes a preprocessing unit and an algorithm processing unit; Pre-processing unit: Filters the analog signal output by the detection module to remove noise interference and amplifies the signal to meet the requirements of subsequent analog-to-digital conversion. The filtering process uses a digital filter, and its transfer function is: Among them, w c is the cutoff frequency, and n is the filter order. By properly selecting the cutoff frequency and order, noise can be effectively filtered out. Algorithm processing unit: Use the fault diagnosis algorithm to analyze the pre-processed data to determine whether there is any abnormality in the arc initiation process; use the fault diagnosis method based on threshold comparison to set the normal threshold range of arc voltage, current, temperature and electromagnetic intensity. When the detected data exceeds the range, it is judged as an abnormal situation.

4. The linear plasma arc ignition protection system according to claim 1, characterized in that: The control module includes a controller and a drive circuit; Controller: uses a high-performance microprocessor as the control core; the controller receives the output signal of the data processing module and generates control instructions according to the preset control strategy; Drive circuit: converts the control instructions output by the controller into signals that can drive the actuator; the drive circuit uses power amplifier devices to provide sufficient drive power.

5. The linear plasma arc ignition protection system according to claim 1, characterized in that: The protection execution module includes a power protection submodule, a cooling submodule, an electromagnetic shielding submodule and a mechanical protection submodule; Power supply protection submodule: When an abnormal situation is detected, such as excessive arc current, too high or too low voltage, the power supply of the arc striking device is cut off through a relay to prevent equipment damage. At the same time, it also includes overvoltage protection and overcurrent protection circuits to monitor and protect the power supply in real time. Cooling submodule: During the arc striking process, the arc striking device generates a large amount of heat, causing the temperature to rise; The cooling submodule uses circulating water cooling or air cooling to cool the arc striking device and control the temperature within a reasonable range. The cooling system includes a water pump, radiator, fan, and components. The operating status of the cooling system is automatically adjusted through feedback signals from temperature sensors. Electromagnetic shielding submodule: To reduce the impact of electromagnetic interference generated during the arc striking process on surrounding equipment and personnel, an electromagnetic shielding cover is installed around the arc striking device. The electromagnetic shielding cover is made of materials with good conductive properties and can effectively block the propagation of electromagnetic radiation. Mechanical protection submodule: protects the mechanical structure of the arc striking device to prevent personnel from coming into contact with high-temperature and high-voltage components, thus avoiding safety accidents.

6. The linear plasma arc ignition protection system according to claim 1, characterized in that: The display screen in the display and alarm module adopts a liquid crystal display LCD or a light-emitting diode display LED to display arc voltage, current, temperature, and electromagnetic intensity parameters in real time; the indicator light is used to display the working status of the system; and the buzzer emits a sound alarm signal when an abnormal situation occurs.

7. The linear plasma arc ignition protection system according to claim 1, characterized in that: The communication module supports multiple communication protocols, including but not limited to RS-485, Ethernet, and wireless communication. The appropriate communication method can be selected according to actual needs.

8. A method for protecting a linear plasma arc ignition protection system according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1, parameter detection: the various sensors in the detection module collect the arc voltage, current, arc ignition device temperature, and ambient electromagnetic intensity parameters during the arc ignition process in real time, and transmit these analog signals to the data processing module; Step 2, data preprocessing: The preprocessing unit of the data processing module filters, amplifies and performs analog-to-digital conversion on the collected analog signal, converting it into a digital signal for subsequent algorithm processing; Step 3, fault diagnosis: the algorithm processing unit uses a preset fault diagnosis algorithm to analyze the pre-processed digital signal to determine whether the arc ignition process is normal; Step 4: Control Decision: The controller of the control module makes a control decision based on the fault diagnosis results. If the arc ignition process is normal, the controller outputs a control signal to maintain the normal operation of the arc ignition device; if an abnormality is detected, the controller generates a corresponding control instruction based on the type and severity of the abnormality; Step 5, protection execution: the protection execution module executes corresponding protection measures according to the instructions of the control module; Step 6, display and alarm: The display and alarm module displays various parameters and working status of the arc ignition process in real time. When an abnormal situation is detected, an audible and visual alarm signal is issued to remind the operator to deal with it in time; Step 7, data communication: The communication module transmits the working status and detection data of the protection system to external equipment or monitoring center to achieve remote monitoring and management.

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