A method for detecting short circuit of an electrolytic cell and a detection device thereof

Abstract

This application relates to the technical field of short-circuit detection in electrolytic cells, and in particular to a short-circuit detection method and device for electrolytic cells, which includes power-on preparation, environmental zeroing, signal acquisition, data processing and threshold comparison, and fault determination and alarm output. This application deeply integrates a moving average filtering algorithm to eliminate background stray magnetic field interference, utilizes hysteresis comparison logic and a signal integrity resampling verification mechanism to thoroughly suppress false alarms caused by operating condition fluctuations and strong electromagnetic environments, and is further supplemented by an adaptive compensation model for the operating lever length and intelligent switching between automatic and manual modes. This method significantly improves the accuracy of short-circuit feature extraction and the system's anti-interference robustness, achieving end-to-end automation and data traceability from on-site data acquisition and core algorithm calculation to fault classification and early warning. It largely replaces inefficient manual inspections and easily interfered-prone voltage detection methods, providing a highly reliable process guarantee for the stable operation of electrolytic cells.

Description

Technical Field

[0001] This application relates to the technical field of short-circuit detection in electrolytic cells, and in particular to a short-circuit detection method and device for electrolytic cells. Background Technology

[0002] With the increasing application of robotic arms in automated production lines, assembly systems, and precision manufacturing, 3D vision systems play a crucial role in the precise positioning and monitoring of robotic arms. To ensure that robotic arms can perform efficient and accurate motion control when performing tasks, 3D vision calibration technology has become an important means to improve the working accuracy of robotic arms. However, in the existing 3D vision calibration process, the occlusion problem of the robotic arm body and its joints seriously affects the field of view of the calibration equipment, resulting in blind spots during the calibration process and affecting calibration accuracy and efficiency. To solve this problem, the traditional installation method adopts a combination of fixed structure and manual adjustment. Although it can complete some calibration tasks, it usually faces technical bottlenecks such as limited installation position, inaccurate adjustment, and difficulty in optimizing the field of view. Especially when facing complex production environments, the adjustability and flexibility of the installation process are obviously insufficient.

[0003] Most existing 3D vision calibration devices for robotic arms fail to effectively address the problem of field-of-view occlusion. Traditional calibration installation devices typically employ fixed supports or manual adjustment structures, lacking precise adjustment capabilities for installation height and position. This leads to the calibration device being easily obstructed by the robotic arm's own structure, especially in situations with complex robotic arm structures or limited space. The lifting and adjustment functions of existing devices are often accomplished through simple mechanical supports and manual operation, resulting in poor accuracy and flexibility, making it difficult to adapt to precise requirements at various heights and angles. During the calibration process, interference between the calibration target or camera module and physical obstacles such as the robotic arm body, joints, and wiring harnesses cannot be effectively avoided, thus affecting calibration accuracy and efficiency. Existing equipment struggles to provide smooth and vibration-free adjustments, especially during lateral or longitudinal fine-tuning, which can easily lead to unstable force distribution, further impacting the system's accuracy and reliability. Therefore, we provide a method and device for detecting short circuits in electrolytic cells. Summary of the Invention

[0004] To address the problems existing in the background art, this application provides a method and apparatus for detecting short circuits in an electrolytic cell.

[0005] This application provides a method and apparatus for detecting short circuits in an electrolytic cell, which adopts the following technical solution:

[0006] Optionally, the method is applied to a short-circuit detection device for electrolytic cells, the device comprising a main unit, an operation box, and an operation rod with a Hall sensor at its end, the method comprising the following steps:

[0007] S1. Turn on the main power supply and attach or bring the Hall sensor at the end of the operating rod close to the preset detection position of the area to be detected in the electrolytic cell;

[0008] S2. Trigger the zeroing button on the operation box. The host collects the background magnetic field signal under the current working condition in real time, calculates it into a reference zero point value and stores it in the memory to eliminate environmental stray magnetic field interference.

[0009] S3. Control the Hall sensor to continuously acquire the real-time magnetic field strength signal during the operation of the electrolytic cell at a preset sampling frequency, and transmit the real-time magnetic field strength signal to the processor of the host through the sensor interface;

[0010] S4. The processor sequentially performs digital filtering and signal amplification processing on the received real-time magnetic field strength signal, extracts effective magnetic field feature values, and dynamically compares the effective magnetic field feature values ​​with a preset short-circuit threshold.

[0011] S5. If the effective magnetic field characteristic value continuously exceeds the preset short-circuit threshold and reaches the set judgment condition, it is determined that a short-circuit fault has occurred inside the electrolytic cell, and the host is controlled to trigger an audible and visual alarm. The audible and visual alarm is indicated by the fault indicator light and / or the display screen. If the effective magnetic field characteristic value does not exceed the preset short-circuit threshold, it is determined that the electrolytic cell is operating normally, and the normal working status is indicated by the working indicator light.

[0012] Optionally, the environmental zeroing in step S2 specifically includes: after receiving the zeroing command from the zeroing button, the host controls the Hall sensor to collect at least N background magnetic field sampling points under the steady-state condition of the electrolytic cell, calculates the background magnetic field reference value using a moving average algorithm, and subtracts the background magnetic field reference value from all subsequent real-time magnetic field intensity signals to obtain a normalized differential signal as the input signal for subsequent processing.

[0013] Optionally, the preset short-circuit threshold in step S4 can be remotely configured by interacting with an external terminal device through a wireless communication module; the dynamic comparison adopts a hysteresis comparison logic, which triggers a fault warning when the effective magnetic field characteristic value rises and crosses the preset short-circuit threshold, and restores normal operation status determination only when it falls and crosses the hysteresis range below the preset short-circuit threshold, so as to suppress false alarms caused by signal fluctuations.

[0014] Optionally, a working mode switching step is also included between steps S3 and S5: selecting automatic mode or manual mode via the toggle switch of the operation box; in automatic mode, the host automatically triggers the cyclic detection process of S3 to S5 according to a preset cycle, and automatically locks the current detection data when a short circuit is detected; in manual mode, the host only executes the detection process of S3 to S5 once when it receives a single acquisition command triggered by the user, and displays the current magnetic field waveform and judgment result on the display screen in real time.

[0015] Optionally, the alarm output in step S5 also includes a voice broadcast step: when a short circuit fault is determined to exist in the electrolytic cell, the host synchronously calls the built-in voice broadcast module to broadcast the fault type, detection time and current magnetic field characteristic value in voice form; the power indicator, working indicator and fault indicator on the host panel are distinguished by status, wherein the power indicator is constantly lit to indicate normal power supply, the working indicator is flashing to indicate data acquisition or processing, and the fault indicator is constantly lit or flashing rapidly to indicate that a short circuit fault has been confirmed.

[0016] Optionally, the method further includes a data storage and historical traceability step: after each S5 judgment, the host will package the corresponding effective magnetic field characteristic value, judgment result, timestamp and current working mode to generate a detection log and store it in non-volatile memory; the user can locally access the historical detection log through the host's display screen, or remotely download and generate the electrolytic cell health status trend curve through a dedicated application of an external terminal device via a wireless communication module.

[0017] Optionally, step S1 further includes an adaptive compensation step for the length of the operating rod: adjusting the extension length of the operating rod according to the structural specifications of the electrolytic cell and the detection distance requirements; the host has a built-in length-magnetic field attenuation compensation model, and in the data processing stage of S4, automatically calls the corresponding magnetic field attenuation compensation coefficient according to the currently set physical length of the operating rod to correct the effective magnetic field characteristic value by distance, so as to ensure the consistency of the short circuit judgment threshold under different detection distances.

[0018] Optionally, the signal transmission in step S3 adopts shielded twisted pair or differential transmission protocol. In the data processing stage of S4, the host also performs a signal integrity verification step: if the received real-time magnetic field strength signal has packet loss or amplitude change, the resampling mechanism is started and the abnormal frame is discarded, and only the continuous valid data segment is sent to the filtering and amplification module.

[0019] Optionally, it includes: a host, which integrates a processor, a memory, a display screen, an indicator light group and a wireless communication module. The processor is electrically connected to the memory, the display screen, the indicator light group and the wireless communication module respectively, and is used to perform data processing, threshold comparison, status display and remote communication.

[0020] The operation box is electrically connected to the host and has a charging port, a toggle switch and a zeroing button on its surface. The toggle switch is used to switch between the host's automatic detection mode and manual detection mode, and the zeroing button is used to trigger a command to zero the ambient background magnetic field.

[0021] The operating lever is mechanically connected to the operating box at one end, and a Hall sensor is fixedly installed at the other end. The Hall sensor is electrically connected to the sensor interface of the host through a signal line, and is used to collect the magnetic field strength signal around the electrolytic cell in a non-contact manner and output it to the processor.

[0022] Optionally, the host also includes a voice broadcast module, which is electrically connected to the processor; the indicator light group includes at least a power indicator light, a working indicator light, and a fault indicator light, and the processor independently controls the on / off state and flashing frequency of each indicator light according to the system operating status and fault judgment results; the wireless communication module supports Bluetooth or Wi-Fi protocols and is used to establish a two-way data link with a smart mobile terminal running a dedicated configuration APP; the operating lever adopts a multi-section sleeve-type adjustable structure, the Hall sensor is installed on the probe part at the end of the operating lever, and the surface of the probe part is covered with an insulating high-temperature resistant protective layer; the host, the operating box, and the operating lever are modularly electrically connected through waterproof connectors.

[0023] In summary, this application includes the following beneficial technical effects:

[0024] 1. This invention utilizes a standard operating procedure of "one-click environmental zeroing and normalization—continuous high-frequency magnetic field acquisition—digital filtering and dynamic comparison of hysteresis thresholds—multi-modal audible and visual alarms." It deeply integrates a moving average filtering algorithm to eliminate background stray magnetic field interference and employs hysteresis comparison logic and signal integrity resampling verification mechanism to thoroughly suppress false alarms caused by operating condition fluctuations and strong electromagnetic environments. Furthermore, it incorporates an adaptive compensation model for the operating lever length and intelligent switching between automatic and manual modes. This method significantly improves the accuracy of short-circuit feature extraction and the system's anti-interference robustness. It achieves full-link automation and data traceability from on-site data acquisition and core algorithm calculation to fault classification and early warning, greatly replacing inefficient manual inspections and easily interfered voltage detection methods, and providing highly reliable process assurance for the stable operation of electrolytic cells.

[0025] 2. This invention relies on a lightweight modular hardware architecture, providing core computing power and a remote parameter configuration channel via a mobile APP through the built-in processor and wireless communication module of the host. Combined with the toggle switch and zeroing button on the operation box, it achieves second-level switching of operating modes and zeroing of the background magnetic field. A Hall sensor mounted on the multi-section sleeve-type operating rod at the end performs non-contact, high-precision magnetic field capture. The design of the probe's insulating high-temperature resistant protective layer, waterproof connectors, and three-color status indicator lights ensures long-term stable operation of the entire machine in the harsh environment of high temperature, high humidity, and strong corrosion in electrolytic cells. The device has a compact structure, intuitive human-machine interaction, and high protection level, effectively overcoming the shortcomings of traditional detection equipment such as bulkiness, fragility, and poor on-site adaptability. It provides a robust, durable, plug-and-play intelligent hardware terminal for short-circuit detection in electrolytic cells. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the device in this invention.

[0027] Figure 2 This is a schematic diagram showing the details of the main unit panel in this invention.

[0028] Figure 3 This is a schematic diagram showing the structural details of the operation box in this invention.

[0029] Figure 4 This is a schematic diagram of the electrical connection frame of the internal modules of the host in this invention.

[0030] Figure 5 This is a schematic diagram of the detection operation scenario in this invention.

[0031] Legend:

[0032] 1. Main unit; 2. Control box; 3. Control lever; 4. Hall sensor; 5. Display screen; 6. Power indicator light; 7. Working indicator light; 8. Fault indicator light; 9. Zero adjustment knob; 10. Charging port; 11. Toggle switch;

[0033] 101. Processor; 102. Memory; 103. Wireless communication module; 104. Sensor interface Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] Example 1

[0036] like Figure 1-5As shown, a short-circuit detection method for an electrolytic cell is applied to an electrolytic cell short-circuit detection device. The device includes a main unit 1, an operation box 2, and an operation rod 3 with a Hall sensor 4 at its end. The method includes the following steps:

[0037] S1. Turn on the power of the host 1 and place the Hall sensor 4 at the end of the operating lever 3 against or near the preset detection position of the area to be detected in the electrolytic cell.

[0038] S2. Trigger the zeroing button 9 on the operation box 2. The host 1 collects the background magnetic field signal under the current working condition in real time, calculates it into a reference zero point value and stores it in the memory 102 to eliminate environmental stray magnetic field interference.

[0039] S3. Control Hall sensor 4 to continuously collect real-time magnetic field strength signal during the operation of electrolytic cell at a preset sampling frequency, and transmit the real-time magnetic field strength signal to processor 101 of host 1 through sensor interface 104.

[0040] S4. The processor 101 performs digital filtering and signal amplification processing on the received real-time magnetic field strength signal in sequence, extracts the effective magnetic field feature value, and dynamically compares the effective magnetic field feature value with the preset short-circuit threshold.

[0041] S5. If the effective magnetic field characteristic value continuously exceeds the preset short circuit threshold and reaches the set judgment condition, it is determined that a short circuit fault has occurred inside the electrolytic cell. The control host 1 triggers an audible and visual alarm, and the audible and visual alarm is indicated by the fault indicator 8 and / or the display screen 5. If the effective magnetic field characteristic value does not exceed the preset short circuit threshold, it is determined that the electrolytic cell is operating normally, and the normal working status is indicated by the working indicator 7.

[0042] The environmental zeroing in step S2 specifically includes: after receiving the zeroing command from the zeroing button 9, the host 1 controls the Hall sensor 4 to collect at least N background magnetic field sampling points under the steady-state condition of the electrolytic cell, calculates the background magnetic field reference value using the moving average algorithm, and subtracts the background magnetic field reference value from all subsequent real-time magnetic field intensity signals to obtain a normalized differential signal as the input signal for subsequent processing.

[0043] The preset short-circuit threshold in step S4 is remotely configured by interacting with an external terminal device through the wireless communication module 103; the dynamic comparison adopts a hysteresis comparison logic, which triggers a fault warning when the effective magnetic field characteristic value rises and crosses the preset short-circuit threshold, and restores normal operation status only when it falls and crosses the hysteresis range below the preset short-circuit threshold, so as to suppress false alarms caused by signal fluctuations.

[0044] Between steps S3 and S5, there is also a working mode switching step: select automatic mode or manual mode by using the toggle switch 11 of the operation box 2; in automatic mode, the host 1 automatically triggers the cyclic detection process from S3 to S5 according to the preset cycle, and automatically locks the current detection data when a short circuit is detected; in manual mode, the host 1 only executes the detection process from S3 to S5 once when it receives a single acquisition command triggered by the user, and displays the current magnetic field waveform and judgment result on the display screen 5 in real time.

[0045] The alarm output in step S5 also includes a voice broadcast step: when a short circuit fault is determined to exist in the electrolytic cell, the host 1 synchronously calls the built-in voice broadcast module to broadcast the fault type, detection time and current magnetic field characteristic value in voice form; the power indicator 6, working indicator 7 and fault indicator 8 on the host 1 panel are used to distinguish the status, wherein the power indicator 6 is constantly lit to indicate that the power supply is normal, the working indicator 7 is flashing to indicate that data acquisition or processing is in progress, and the fault indicator 8 is constantly lit or flashing rapidly to indicate that a short circuit fault has been confirmed;

[0046] The method also includes data storage and historical traceability steps: After completing the judgment of S5 each time, the host 1 packages the corresponding effective magnetic field characteristic value, judgment result, timestamp and current working mode to generate a detection log and stores it in the non-volatile memory 102; the user can access the historical detection log locally through the display screen 5 of the host 1, or remotely download and generate the electrolytic cell health status trend curve through the dedicated application of the external terminal device via the wireless communication module 103.

[0047] Step S1 also includes an adaptive compensation step for the length of the operating rod: the extension length of the operating rod 3 is adjusted according to the structural specifications of the electrolytic cell and the detection distance requirements; the host 1 has a built-in length-magnetic field attenuation compensation model, and in the data processing stage of S4, the corresponding magnetic field attenuation compensation coefficient is automatically called according to the current physical length of the operating rod 3 to correct the effective magnetic field characteristic value by distance, so as to ensure the consistency of the short circuit judgment threshold under different detection distances.

[0048] The signal transmission in step S3 uses shielded twisted pair or differential transmission protocol. In the data processing stage of S4, host 1 also performs a signal integrity verification step: if the received real-time magnetic field strength signal has packet loss or amplitude change, the resampling mechanism is started and the abnormal frame is discarded, and only the continuous valid data segment is sent to the filtering and amplification module.

[0049] In the above embodiments, a standard operating procedure of "one-click environmental zeroing and normalization—continuous high-frequency magnetic field acquisition—digital filtering and dynamic comparison of hysteresis thresholds—multi-modal audible and visual alarms" is employed. This procedure deeply integrates a moving average filtering algorithm to eliminate background stray magnetic field interference. Hysteresis comparison logic and a signal integrity resampling verification mechanism are used to thoroughly suppress false alarms caused by operating condition fluctuations and strong electromagnetic environments. Furthermore, an adaptive compensation model for the operating lever length and intelligent switching between automatic and manual modes are incorporated. This method significantly improves the accuracy of short-circuit feature extraction and the system's anti-interference robustness. It achieves end-to-end automation and data traceability from on-site data acquisition and core algorithm calculation to fault classification and early warning, substantially replacing inefficient manual inspections and easily interfered-prone voltage detection methods, providing highly reliable process assurance for the stable operation of electrolytic cells.

[0050] Example 2

[0051] like Figure 1-5 As shown, an electrolytic cell short circuit detection device includes: a host 1, which integrates a processor 101, a memory 102, a display screen 5, an indicator light group and a wireless communication module 103. The processor 101 is electrically connected to the memory 102, the display screen 5, the indicator light group and the wireless communication module 103 respectively, and is used to perform data processing, threshold comparison, status display and remote communication.

[0052] The operation box 2 is electrically connected to the main unit 1. The surface is provided with a charging port 10, a toggle switch 11 and a zeroing button 9. The toggle switch 11 is used to switch between the automatic detection mode and the manual detection mode of the main unit 1. The zeroing button 9 is used to trigger the command to zero the ambient background magnetic field.

[0053] The operating lever 3 is mechanically connected to the operating box 2 at one end, and a Hall sensor 4 is fixedly installed at the other end. The Hall sensor 4 is electrically connected to the sensor interface 104 of the host 1 through a signal line, and is used to collect the magnetic field strength signal around the electrolytic cell in a non-contact manner and output it to the processor 101.

[0054] The host 1 also includes a voice broadcast module, which is electrically connected to the processor 101; the indicator light group includes at least a power indicator light 6, a working indicator light 7, and a fault indicator light 8. The processor 101 independently controls the on / off state and flashing frequency of each indicator light according to the system operating status and fault judgment results; the wireless communication module 103 supports Bluetooth or Wi-Fi protocols and is used to establish a two-way data link with a smart mobile terminal running a dedicated configuration APP; the operating lever 3 adopts a multi-section sleeve adjustable structure, and the Hall sensor 4 is installed on the probe part at the end of the operating lever 3. The surface of the probe part is covered with an insulating high-temperature resistant protective layer. The host 1, the operating box 2, and the operating lever 3 are modularly electrically connected through waterproof connectors.

[0055] In the above embodiments, relying on a lightweight modular hardware architecture, the processor 101 built into the host 1 and the wireless communication module 103 provide core computing power and a remote parameter configuration channel via a mobile APP. Combined with the toggle switch 11 and zeroing button 9 of the operation box 2, the operating mode can be switched in seconds and the background magnetic field can be zeroed. The Hall sensor 4 mounted on the multi-section sleeve-type operating rod 3 at the end performs non-contact, high-precision magnetic field capture. The design of the probe's insulating high-temperature resistant protective layer, waterproof connectors, and three-color status indicator lights ensures long-term stable operation of the entire machine in the harsh environment of high temperature, high humidity, and strong corrosion in the electrolytic cell. This device has a compact structure, intuitive human-machine interaction, and high protection level, effectively overcoming the shortcomings of traditional detection equipment such as bulkiness, fragility, and poor on-site adaptability. It provides a robust, durable, plug-and-play intelligent hardware terminal for short-circuit detection in electrolytic cells.

[0056] Working Principle: In use, the present invention powers the host 1 through the charging port 10 on the operation box 2, and the power indicator 6 remains constantly lit, indicating that the system power supply is normal. Based on the structural specifications of the electrolytic cell and the required detection distance, the multi-section telescopic length of the operating rod 3 is adjusted so that the Hall sensor 4 at the end can safely approach or be close to the preset detection position of the area to be detected in the electrolytic cell. Then, the zeroing button 9 on the operation box 2 is pressed to trigger the environmental zeroing command. The processor 101 of the host 1 controls the Hall sensor 4 to continuously collect at least N background magnetic field sampling points under the steady-state operating conditions of the electrolytic cell. A moving average algorithm is used to calculate the background magnetic field reference value under the current environment, and this reference value is stored in the memory 102. All subsequent real-time magnetic field intensity signals will be subtracted from this background magnetic field reference value to obtain a normalized differential signal, thereby effectively eliminating the influence of stray magnetic fields, geomagnetic fields, and other electromagnetic interference in the workshop on the detection accuracy, laying the foundation for subsequent accurate detection.

[0057] After zeroing is completed, the operator selects automatic or manual mode using the toggle switch 11 on the operation box 2. In automatic mode, the host 1 automatically triggers the cyclic detection process according to the preset cycle. In manual mode, a detection is only performed when a single acquisition command is received from the user. The Hall sensor 4 continuously acquires the real-time magnetic field strength signal generated around the electrolytic cell at a preset sampling frequency. The signal is transmitted to the processor 101 of the host 1 via shielded twisted pair cable or differential transmission protocol through the sensor interface 104. The processor 101 first performs signal integrity verification. If packet loss or amplitude change is detected, a resampling mechanism is initiated and abnormal frames are discarded. Only continuous and valid data segments are sent to the subsequent processing module. Then, the real-time magnetic field strength signal is digitally filtered in sequence, such as low-pass filtering to remove high-frequency noise and signal amplification processing, to extract the effective magnetic field feature value. The processor 101 automatically calls the corresponding magnetic field attenuation compensation coefficient in the built-in length-magnetic field attenuation compensation model according to the physical length currently set by the operating lever 3, and performs distance correction on the effective magnetic field feature value to ensure the consistency of the short circuit judgment threshold under different detection distances. The working indicator 7 flashes during this process to indicate that data acquisition or processing is in progress.

[0058] The processor 101 dynamically compares the compensated and corrected effective magnetic field characteristic value with a preset short-circuit threshold. This preset threshold can be remotely configured and adjusted via the wireless communication module 103 and a dedicated APP running on an external smart mobile terminal (phone or tablet), enabling intelligent management of the detection parameters. The dynamic comparison adopts a hysteresis comparison logic: when the effective magnetic field characteristic value rises and crosses the preset short-circuit threshold, a fault warning is immediately triggered, but normal operation is only restored when the characteristic value falls and crosses the hysteresis range below the preset short-circuit threshold. This hysteresis comparison mechanism effectively suppresses false alarms caused by signal fluctuations due to power grid fluctuations, changes in electrolytic cell operating conditions, etc. If the effective magnetic field characteristic value continuously exceeds the preset short-circuit threshold and reaches the set judgment condition (e.g., exceeding the limit for three consecutive sampling cycles), the processor 101 determines that a short-circuit fault has occurred inside the electrolytic cell; if the effective magnetic field characteristic value never exceeds the preset short-circuit threshold, the electrolytic cell is determined to be operating normally. The entire judgment process fully considers the complexity of the actual operating environment of the electrolytic cell, ensuring the accuracy and reliability of the detection results.

[0059] When a short circuit fault is detected in the electrolytic cell, the host 1 synchronously triggers a multi-modal alarm mechanism: the fault indicator 8 remains constantly lit or flashes rapidly to provide a visual warning, the built-in voice broadcast module broadcasts the fault type, detection time, and current magnetic field characteristic value in voice form, and the display screen 5 displays the magnetic field waveform curve and specific values ​​in real time. The staff can quickly obtain fault information through sound and light without looking directly at the screen. The processor 101 packages the effective magnetic field characteristic value, judgment result, timestamp, current working mode, and operating rod length parameter of this test to generate a test log and stores it in the non-volatile memory 102 to achieve persistent storage of test data. Staff can access historical test logs locally via the display screen 5 of the host unit 1, or establish a two-way data link with a dedicated APP via Bluetooth / Wi-Fi protocol through the wireless communication module 103 to remotely download historical data and generate electrolytic cell health status trend curves, enabling early warning of faults and preventive maintenance. After the test is completed, the host unit 1, operation box 2 and operation rod 3 can be quickly disassembled through waterproof connectors. The insulating high-temperature resistant protective layer covering the probe ensures long-term stable operation of the device in the harsh environment of high temperature, high humidity and strong corrosion in the electrolytic cell, providing efficient, accurate and reliable short-circuit detection technology for electrolytic aluminum, electrolytic copper and other electrolytic production processes.

[0060] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A method for detecting short circuits in an electrolytic cell, characterized in that, An electrolytic cell short-circuit detection device is used, the device comprising a main unit (1), an operation box (2), and an operation rod (3) with a Hall sensor (4) at its end. The method includes the following steps: S1. Power on the host (1) and attach or bring the Hall sensor (4) at the end of the operating lever (3) to the preset detection position of the area to be detected in the electrolytic cell; S2. Trigger the zeroing button (9) on the operation box (2). The host (1) collects the background magnetic field signal under the current working condition in real time, calculates it into a reference zero point value and stores it in the memory (102) to eliminate environmental stray magnetic field interference. S3. Control the Hall sensor (4) to continuously collect the real-time magnetic field strength signal during the operation of the electrolytic cell at a preset sampling frequency, and transmit the real-time magnetic field strength signal to the processor (101) of the host (1) through the sensor interface (104). S4. The processor (101) performs digital filtering and signal amplification processing on the received real-time magnetic field strength signal in sequence, extracts effective magnetic field feature values, and dynamically compares the effective magnetic field feature values ​​with a preset short-circuit threshold. S5. If the effective magnetic field characteristic value continuously exceeds the preset short-circuit threshold and reaches the set judgment condition, it is determined that a short-circuit fault has occurred inside the electrolytic cell, and the host (1) is controlled to trigger an audible and visual alarm prompt. The audible and visual alarm prompt is indicated by the fault indicator (8) and / or the display screen (5). If the effective magnetic field characteristic value does not exceed the preset short-circuit threshold, it is determined that the electrolytic cell is in normal operating condition, and the normal operating condition is indicated by the working indicator (7).

2. The method for detecting short circuits in an electrolytic cell according to claim 1, characterized in that, The environmental zeroing in step S2 specifically includes: after receiving the zeroing command from the zeroing button (9), the host (1) controls the Hall sensor (4) to collect at least N background magnetic field sampling points under the steady-state condition of the electrolytic cell, calculates the background magnetic field reference value using the moving average algorithm, and subtracts the background magnetic field reference value from all subsequent real-time magnetic field intensity signals to obtain a normalized differential signal as the input signal for subsequent processing.

3. The method for detecting short circuits in an electrolytic cell according to claim 1, characterized in that, The preset short-circuit threshold in step S4 is remotely configured by interacting with an external terminal device through the wireless communication module (103); the dynamic comparison adopts a hysteresis comparison logic, which triggers a fault warning when the effective magnetic field characteristic value rises and crosses the preset short-circuit threshold, and restores normal operation status only when it falls and crosses the hysteresis range below the preset short-circuit threshold, so as to suppress false alarms caused by signal fluctuations.

4. The method for detecting short circuits in an electrolytic cell according to claim 1, characterized in that, The steps between S3 and S5 also include a working mode switching step: select automatic mode or manual mode through the toggle switch (11) of the operation box (2); in automatic mode, the host (1) automatically triggers the cyclic detection process from S3 to S5 according to a preset cycle, and automatically locks the current detection data when a short circuit is detected; in manual mode, the host (1) only executes the detection process from S3 to S5 once when it receives a single acquisition command triggered by the user, and displays the current magnetic field waveform and judgment result on the display screen (5) in real time.

5. The method for detecting short circuits in an electrolytic cell according to claim 1, characterized in that, The alarm output in step S5 also includes a voice broadcast step: when it is determined that there is a short circuit fault in the electrolytic cell, the host (1) synchronously calls the built-in voice broadcast module to broadcast the fault type, detection time and current magnetic field characteristic value in voice form; the power indicator (6), working indicator (7) and fault indicator (8) on the host (1) panel are distinguished by status, wherein the power indicator (6) is constantly lit to indicate that the power supply is normal, the working indicator (7) is flashing to indicate that data acquisition or processing is in progress, and the fault indicator (8) is constantly lit or flashing rapidly to indicate that the short circuit fault has been confirmed.

6. The method for detecting short circuits in an electrolytic cell according to claim 1, characterized in that, The method also includes a data storage and history tracing step: after each S5 judgment, the host (1) packages the corresponding effective magnetic field characteristic value, judgment result, timestamp and current working mode to generate a detection log and stores it in a non-volatile memory (102). Users can access historical detection logs locally via the display screen (5) of the host (1), or remotely download and generate electrolytic cell health status trend curves via a dedicated application of an external terminal device through a wireless communication module (103).

7. The method for detecting short circuits in an electrolytic cell according to claim 1, characterized in that, Step S1 also includes an adaptive compensation step for the length of the operating rod: the extension length of the operating rod (3) is adjusted according to the structural specifications of the electrolytic cell and the detection distance requirements; the host (1) has a built-in length-magnetic field attenuation compensation model, and in the data processing stage of S4, the corresponding magnetic field attenuation compensation coefficient is automatically called according to the physical length currently set by the operating rod (3) to correct the effective magnetic field characteristic value by distance, so as to ensure the consistency of the short circuit judgment threshold under different detection distances.

8. The method for detecting short circuits in an electrolytic cell according to claim 1, characterized in that, The signal transmission in step S3 uses shielded twisted pair or differential transmission protocol. In the data processing stage of S4, the host (1) also performs a signal integrity verification step: if the received real-time magnetic field strength signal has packet loss or amplitude change, the resampling mechanism is started and the abnormal frame is discarded, and only the continuous valid data segment is sent to the filtering and amplification module.

9. A short-circuit detection device for an electrolytic cell, used to implement the short-circuit detection method for an electrolytic cell as described in any one of claims 1 to 8, characterized in that, include: The host (1) integrates a processor (101), a memory (102), a display screen (5), an indicator light group and a wireless communication module (103). The processor (101) is electrically connected to the memory (102), the display screen (5), the indicator light group and the wireless communication module (103) respectively, and is used to perform data processing, threshold comparison, status display and remote communication. The operation box (2) is electrically connected to the host (1). The surface is provided with a charging port (10), a toggle switch (11) and a zeroing button (9). The toggle switch (11) is used to switch the automatic detection mode and the manual detection mode of the host (1). The zeroing button (9) is used to trigger the command to return the ambient background magnetic field to zero. The operating lever (3) is mechanically connected to the operating box (2) at one end and a Hall sensor (4) is fixedly installed at the other end. The Hall sensor (4) is electrically connected to the sensor interface (104) of the host (1) through a signal line and is used to collect the magnetic field strength signal around the electrolytic cell in a non-contact manner and output it to the processor (101).

10. The electrolytic cell short-circuit detection device according to claim 9, characterized in that, The host (1) also includes a voice broadcast module, which is electrically connected to the processor (101); the indicator light group includes at least a power indicator light (6), a working indicator light (7) and a fault indicator light (8), and the processor (101) independently controls the on / off state and flashing frequency of each indicator light according to the system operating status and fault judgment result; the wireless communication module (103) supports Bluetooth or Wi-Fi protocol and is used to establish a two-way data link with a smart mobile terminal running a dedicated configuration APP; the operating lever (3) adopts a multi-section sleeve adjustable structure, the Hall sensor (4) is installed on the probe part at the end of the operating lever (3), the surface of the probe part is covered with an insulating high temperature resistant protective layer, and the host (1), the operating box (2) and the operating lever (3) are modularly electrically connected through waterproof connectors.

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