Locomotive auxiliary machine electric leakage monitoring and protecting device

Abstract

The invention belongs to the technical field of railway locomotive parts, and discloses a locomotive auxiliary engine electric leakage monitoring protection device which comprises an accurate monitoring and basic guarantee module, a self-checking maintenance reminding module, a multi-path flexible monitoring module, a real-time interaction management and control module, a complete historical recording module, a wide-voltage adaptive power supply module and a man-machine interaction display module. The monitoring protection device can accurately capture grounding abnormity of the auxiliary machine in real time, response, positioning and alarming are fast, the safety risk is reduced, and shutdown of a locomotive is avoided; the structure is simple, installation is easy and convenient, adaptability is high, selected materials are high in quality, operation is stable, maintenance is reduced, and cost is reduced; and thirdly, the grounding problem of the auxiliary machine is efficiently solved, maintenance is convenient, time is shortened, and smooth transportation is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of railway locomotive parts, and specifically relates to a leakage monitoring and protection device for locomotive auxiliary machines. Background Technique

[0002] During the operation of a railway locomotive, auxiliary machines (such as cooling fans, oil pumps, ventilators, air compressors, phase splitting machines, etc.) are key auxiliary equipment, and their electrical safety is directly related to the normal operation of the locomotive and train operation safety.

[0003] However, in the prior art, the monitoring and protection measures for auxiliary machine leakage are not yet perfect, and there are many potential safety hazards. In actual operation, the following situation often occurs: when the locomotive is running, the TCMS screen shows that the main circuit breaker trips due to the grounding fault of the auxiliary converter. After in-depth analysis, it is found that the vast majority of APU grounding faults are caused by the grounding of auxiliary machine equipment; if the faulty auxiliary machine cannot be removed in time during the operation of the locomotive, it is very likely to cause the locomotive to stop operating, which will directly disrupt the normal transportation production order and bring serious economic losses and adverse effects to railway transportation.

[0004] When the auxiliary machine is grounded, there are obvious limitations in the current protection circuit of the locomotive auxiliary converter device. It can only protect the locomotive auxiliary converter itself, but cannot perform separate removal protection for a specific auxiliary machine. Therefore, currently, it can only rely on manual judgment to determine the specific faulty auxiliary machine. This means that the operator needs to monitor all the auxiliary machines in the two independent auxiliary converters APU1 and APU2 in the locomotive one by one to determine whether there is a ground fault. This is undoubtedly a huge and cumbersome task. If problems occur during operation and rely entirely on manual judgment of auxiliary machine grounding and corresponding treatment measures, it places too high requirements on the professional skills, response ability, and work intensity of the crew. A slight oversight may lead to untimely fault handling and further expand the losses.

[0005] Therefore, it is particularly important to develop a device that can monitor in real time and effectively determine the position of the specific faulty auxiliary machine in a railway locomotive, which will greatly improve the safety and reliability of railway locomotive operation and provide a strong guarantee for the efficient and stable operation of railway transportation. Summary of the Invention

[0006] The purpose of the present invention is to provide a leakage monitoring and protection device for locomotive auxiliary machines to solve the problems raised in the above background technique.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A leakage monitoring and protection device for locomotive auxiliary machines, which includes a precise monitoring and basic guarantee module, a self-check and maintenance reminder module, a multi-channel flexible monitoring module, a real-time interaction and control module, a complete historical record module, a wide-voltage adaptation power supply module, and a human-machine interaction display module;

[0008] Precision Monitoring and Basic Guarantee Module: The external monitoring module uses a high-precision leakage current monitoring device to monitor the leakage current of the auxiliary machine circuit in real time. Once the standard is exceeded, the circuit breaker is immediately disconnected to cut off the electrical circuit to ensure electrical safety; the leakage main control module uses a fast-processing microcontroller, which responds quickly to leakage. The buzzer and LED indicator in the alarm part intuitively prompt the abnormality. The power supply module uses an isolation transformer and a voltage stabilizing circuit to stably supply power to the device under different voltage fluctuations;

[0009] Self-Inspection and Maintenance Reminder Module: Set up a self-inspection module to regularly remind maintenance personnel to check the working status of the device by voice to ensure the continuous good operation of the device;

[0010] Multi-channel Flexible Monitoring Module: Supports synchronous monitoring of multiple switches, up to the status of sixteen auxiliary machines, and can customize the quantity according to user needs. Once any switch is abnormal during monitoring, it will quickly start an audible and visual alarm and store historical records;

[0011] Real-time Interaction and Control Module: With the help of a human-machine interaction interface, it monitors and records in real time, accurately judges the leaking auxiliary machine at the moment of failure, and automatically executes power-off isolation to ensure safety;

[0012] Complete Historical Record Module: Has a powerful historical record storage and query function, storing up to one thousand records at most, covering detailed fault information. When querying, it is presented in reverse chronological order, and the page-turning button is used to assist browsing, and it can also be deleted as needed;

[0013] Wide-Voltage Adaptation Power Supply Module: Powered by DC110V, compatible with wide-voltage input of DC60V - DC140V to cope with complex working conditions;

[0014] Composition of Human-Machine Interaction Display Module: Equipped with a liquid crystal screen for display and touch control. The main interface presents the status information of multiple switches, RTC clock, and buzzer in real time, supports RTC clock calibration, vehicle information and buzzer function settings, and also has operations such as silencing and password modification, with timely and clear feedback. The auxiliary machine leakage protector is the core of the leakage monitoring of the locomotive auxiliary machine circuit, and each module works together to protect the locomotive operation.

[0015] Preferably, the precision monitoring and basic guarantee module includes:

[0016] (1) External Monitoring Module: Using a high-precision leakage current monitoring device to monitor the leakage current of the auxiliary machine circuit in real time. Once the standard is exceeded, the circuit breaker is immediately disconnected to cut off the electrical circuit to ensure electrical safety;

[0017] (2) Auxiliary Machine Leakage Main Control Module: Using a fast-processing microcontroller, which responds quickly to leakage. The buzzer and LED indicator in the alarm part intuitively prompt the abnormality;

[0018] (3) Power supply module: With the isolation transformer and voltage stabilizing circuit, it can stably supply power to the device under different voltage fluctuations.

[0019] Preferably, the self-check and maintenance reminder module refers to regularly sending voice reminders to inform maintenance personnel to promptly check the working status of the device, such as the monitoring accuracy and whether the alarm function is normal, so as to ensure that the device can always operate continuously, stably, and efficiently.

[0020] Preferably, the multi-channel flexible monitoring module includes:

[0021] (1) Multi-channel monitoring activation: After the detection and protection device is started, it automatically activates the multi-channel switch and monitoring function to prepare for comprehensively grasping the operation status of the auxiliary machines. It has a powerful monitoring ability and can simultaneously monitor the status of up to 16 auxiliary machines in real time;

[0022] (2) Personalized configuration: Fully considering the diverse needs of users, it supports flexibly configuring the number of monitored auxiliary machines according to the actual usage scenario to ensure accurate adaptation to the monitoring requirements of different locomotives;

[0023] (3) Abnormality response: During the continuous monitoring of the multi-channel auxiliary machine circuit, once any abnormal switch is detected, the locomotive auxiliary machine leakage monitoring and protection device quickly responds, immediately triggers an audible and visual alarm to alert the staff, and at the same time automatically stores the historical record of this abnormality to provide a basis for subsequent fault troubleshooting.

[0024] Preferably, the real-time interaction and control module includes:

[0025] (1) Real-time monitoring and judgment: Operators can perform real-time monitoring of the operation status of the locomotive auxiliary machines through the man-machine interface equipped with the device, and can accurately lock the leaking auxiliary machine based on the real-time collected data, providing an accurate target for subsequent emergency handling;

[0026] (2) Automatic power-off isolation: Once the leaking auxiliary machine is determined, the man-machine interaction system immediately issues an instruction to the execution module to automatically start the power-off procedure, quickly cut off the circuit connection of the leaking auxiliary machine, and implement effective isolation.

[0027] Preferably, the complete historical record module includes:

[0028] (1) Fault information storage: During the operation of the locomotive auxiliary machine leakage monitoring and protection device, once a fault is detected, it immediately starts the information collection program; accurately captures key fault information such as the fault number, car number, car end, fault point, and fault time, and stores them in an orderly manner in the internal storage unit, which can accommodate up to one thousand historical records, providing a data basis for subsequent analysis;

[0029] (2) Reverse order query and display: The built-in sorting algorithm of the device will arrange the stored fault information according to the rule of reverse time order, ensuring that the most recently occurred fault information is preferentially displayed at the forefront, facilitating users to quickly understand the potential hazards of the equipment operation recently;

[0030] (3) Paging browsing and deletion: Facing the historical records arranged in reverse order, users can easily browse the past data through the paging buttons on the operation interface. If they find that some records are no longer needed, they can directly perform the deletion operation on this interface to independently manage the historical records and maintain the efficient utilization of the storage unit.

[0031] Preferably, the wide-voltage adaptation power supply module means that the locomotive auxiliary equipment leakage monitoring and protection device is powered by DC110V and supports input in the wide voltage range of DC60V to DC140V.

[0032] Preferably, the human-computer interaction display module includes:

[0033] (1) Basic information display: After the device is turned on, the equipped liquid crystal screen immediately enters the working state. With its display and touch functions, it presents the multi-channel switch status in real time on the main interface, enabling the operator to clearly see the on-off status of each auxiliary equipment line at a glance. At the same time, the RTC clock and the buzzer status are also clearly displayed, providing accurate time reference for users and understanding the alarm preparation status, ensuring the basic control of the equipment operation;

[0034] (2) Function setting operation: Users can first accurately set the vehicle information, mainly covering the input and adjustment of the vehicle number and vehicle end, ensuring that the device is accurately adapted to the corresponding locomotive. On this interface, the buzzer can also be flexibly controlled to turn off or turn on its alarm output function according to the actual scenario requirements, meeting the usage preferences in different environments and realizing personalized configuration;

[0035] (3) Auxiliary function application: When a switch fault is detected and the buzzer is in the alarm state, if the user wants to temporarily silence it, they can directly click the buzzer alarm icon on the main interface to quickly eliminate the noise interference and focus on fault handling. In addition, considering safety and usage permissions, users can also easily modify the password in the setting interface. The password is a four-digit number combination, and the system will immediately feedback success or failure information after the modification is completed to ensure the effective execution of the operation.

[0036] The beneficial effects of the present invention are as follows:

[0037] 1. Through the monitoring ability of the leakage monitoring and protection device for auxiliary machines of railway locomotives, the present invention can capture the grounding state of auxiliary machines in real time and accurately. Once an abnormality is detected, it can respond quickly, locate the fault source in an instant, and at the same time emit a loud and eye-catching alarm signal. This series of efficient actions greatly reduces the safety risks caused by the leakage of auxiliary machines, builds a solid defense line for the stable operation of railway locomotive auxiliary machines, effectively ensures the safe running of locomotives on the operation track, and effectively avoids serious accidents of locomotive shutdown caused by auxiliary machine failures.

[0038] 2. Due to the simple structure of the device itself, without any complex and redundant components, the present invention not only makes the production and manufacturing process more efficient, but also makes the installation process extremely simple in actual application scenarios. It can be easily adapted to any type and specification of railway locomotive, regardless of the type of auxiliary equipment installed on the locomotive, just like being tailor-made for the locomotive. At the same time, its internal structure has been carefully optimized and high-quality materials are selected to ensure that it can still operate stably and reliably in the complex and changeable locomotive operation environment, escort the auxiliary machines of the locomotive for a long time, reduce the maintenance frequency, and lower the operation cost.

[0039] 3. The grounding problem of auxiliary machines during the operation of locomotives is efficiently solved by the present invention. When the grounding of the auxiliary machine occurs, the device automatically takes effect, accurately monitors and cuts off the grounded auxiliary machine, and will also record in detail key leakage information such as fault number, car number, car end, fault auxiliary machine code, and fault time. This function shines in the locomotive maintenance link. Maintenance personnel have completely bid farewell to the cumbersome and time-consuming working mode of judging the grounding of all auxiliary machines one by one. Just by gently operating through the main display screen of the leakage monitoring and protection device for auxiliary machines, they can quickly call up and view the fault details of the grounded auxiliary machine, greatly shortening the maintenance time, improving the maintenance efficiency, enabling the locomotive to return to the operation track faster, and ensuring the efficient and smooth railway transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a diagram of the leakage monitoring and protection device for auxiliary machines of the present invention;

[0041] Figure 2 It is a functional schematic diagram of the leakage monitoring and protection device for auxiliary machines of railway locomotives of the present invention;

[0042] Figure 3 It is a working flow chart of the leakage monitoring and protection device for auxiliary machines of railway locomotives of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0044] As Figures 1 to 3 shown, the embodiment of the present invention provides a locomotive auxiliary equipment leakage monitoring and protection device, which includes a precise monitoring and basic guarantee module, a self-check and maintenance reminder module, a multi-channel flexible monitoring module, a real-time interaction control module, a complete historical record module, a wide-voltage adaptation power supply module, and a human-computer interaction display module;

[0045] Precise monitoring and basic guarantee module: The external monitoring module uses a high-precision leakage current monitoring device to continuously monitor the leakage current of the auxiliary equipment circuit. Once it exceeds the standard, the circuit breaker will be immediately disconnected to cut off the electrical circuit to ensure electrical safety; the leakage main control module uses a fast-processing microcontroller, which responds quickly to leakage. The buzzer and LED indicator in the alarm part intuitively prompt the abnormality. The power supply module uses an isolation transformer and a voltage stabilization circuit to stably supply power to the device under different voltage fluctuations;

[0046] Self-check and maintenance reminder module: A self-check module is set to regularly remind the maintenance personnel to check the working status of the device by voice to ensure the continuous good operation of the device;

[0047] Multi-channel flexible monitoring module: Supports synchronous monitoring of multiple switches, up to sixteen auxiliary equipment states, and can customize the quantity according to user needs. Once any switch in the monitoring is abnormal, it will quickly start an audible and visual alarm and store the historical record;

[0048] Real-time interaction control module: With the help of the human-computer interaction interface, it can monitor and record in real time, accurately judge the leaking auxiliary equipment at the moment of failure, and automatically execute power-off isolation to ensure safety;

[0049] Complete historical record module: It has a powerful historical record storage and query function, storing up to one thousand records at most, covering detailed fault information. When querying, it is presented in reverse chronological order, and the page-turning button is used to assist browsing, and it can also be deleted as needed;

[0050] Wide-voltage adaptation power supply module: It is powered by DC110V and is compatible with wide-voltage input of DC60V - DC140V to cope with complex working conditions;

[0051] The human-computer interaction display module is composed of: an LCD screen for display and touch control, the main interface presents multi-way switches, RTC clock, and buzzer status information in real time, supports RTC clock calibration, vehicle information and buzzer function settings, as well as mute and password modification operations, with timely and clear feedback. The auxiliary machine leakage protector serves as the core of the locomotive auxiliary machine line leakage monitoring, and each module works together to protect the locomotive operation.

[0052] All modules of the device work together to ensure the operation of the locomotive in all aspects. In the precise monitoring and basic guarantee module, the external monitoring device always keeps a close eye on the auxiliary machine circuit and trips the circuit breaker when there is a leakage. The main control module responds quickly, with alarms from the buzzer and LED indicator light. The power module provides stable power supply, and the self-inspection and maintenance reminder module provides regular voice prompts to ensure a continuous good state. The multi-channel flexible monitoring module supports sixteen-channel simultaneous monitoring and can be customized on demand. It can provide sound and light alarms and store records in case of abnormalities. The real-time interactive control module uses the human-machine interface for real-time control, and accurately cuts off power and isolates at the moment of fault. The complete historical record, wide-voltage adaptive power supply and human-machine interactive display module also perform their respective duties, with powerful functions and convenient operation to ensure the safe and stable operation of the locomotive auxiliary machine.

[0053] Among them, the precise monitoring and basic guarantee module includes:

[0054] (1) External monitoring module: Use a high-precision leakage current monitoring device to monitor the auxiliary machine circuit leakage current in real time. Once it exceeds the standard, the circuit breaker is immediately disconnected to cut off the power circuit to ensure power safety;

[0055] (2) Auxiliary machine leakage control module: It uses a fast processing microcontroller to respond quickly to leakage, and the buzzer and LED indicator of the alarm part directly indicate abnormalities;

[0056] (3) Power module: With the help of isolation transformer and voltage stabilization circuit, it can provide stable power supply to the device under different voltage fluctuations.

[0057] The external monitoring module uses a high-precision leakage current monitoring device to track the leakage current of the auxiliary machine circuit in real time. Once the current exceeds the standard, it can decisively disconnect the circuit breaker in an instant and quickly cut off the power circuit, building the first solid line of defense for power safety; the auxiliary machine leakage main control module is equipped with a fast-processing microcontroller, which can respond quickly when encountering leakage, and at the same time send out intuitive abnormal warnings through the buzzer and LED indicator. The power module, with the help of an isolation transformer and a voltage stabilizing circuit, ensures that the device can obtain stable power supply under different voltage fluctuations.

[0058] Among them, the self-inspection and maintenance reminder module refers to the regular voice reminders to inform the maintenance personnel to check the working status of the device in time, such as whether the monitoring accuracy and alarm function are normal, so as to ensure that the device can always operate continuously, stably and efficiently.

[0059] Self-check maintenance reminder module. According to the preset cycle, it regularly sends clear voice reminders to urge maintenance personnel to verify the device status, not only paying attention to whether there are deviations in the monitoring accuracy, but also checking whether the alarm function is sensitive and reliable, so as to comprehensively ensure that the device always maintains the best state of continuous, stable and efficient operation.

[0060] Among them, the multi-channel flexible monitoring module includes:

[0061] (1) Multi-channel monitoring start: After the detection and protection device is started, it automatically activates the multi-switch simultaneous monitoring function to prepare for comprehensively grasping the operation status of the auxiliary machines. It has a powerful monitoring ability and can simultaneously monitor the status of up to 16 auxiliary machines in real time;

[0062] (2) Personalized configuration: Fully considering the diverse needs of users, it supports flexibly configuring the number of monitored auxiliary machines according to the actual usage scenario to ensure accurate adaptation to the monitoring requirements of different locomotives;

[0063] (3) Abnormality response: During the continuous monitoring of the multi-channel auxiliary machine circuit, once any abnormal switch is detected, the locomotive auxiliary machine leakage monitoring and protection device responds quickly, immediately triggers an audible and visual alarm to alert the staff, and at the same time automatically stores the historical record of this abnormality to provide a basis for subsequent fault troubleshooting.

[0064] First, in the multi-channel monitoring start stage, at the moment when the device is started, it automatically activates the powerful multi-switch simultaneous monitoring function, which can simultaneously keep an eye on the real-time status of up to 16 auxiliary machines at most, laying a foundation for accurately grasping the overall situation; Secondly, the personalized configuration link fully demonstrates its user-friendly design, which can flexibly adjust the number of monitored auxiliary machines according to different locomotive types and operation scenarios, perfectly adapting to diverse needs; Finally, in the case of abnormality response, once any abnormal switch is detected, it immediately triggers an audible and visual alarm, and at the same time quickly stores the fault information, providing key "clues" for subsequent maintenance personnel to troubleshoot problems, comprehensively ensuring the trouble-free operation of the locomotive auxiliary machines.

[0065] Among them, the real-time interaction control module includes:

[0066] (1) Real-time monitoring and judgment: The operator monitors the operation status of the locomotive auxiliary machines through the man-machine interface equipped with the device, and can accurately lock the leaking auxiliary machine based on the real-time collected data, providing an accurate target for subsequent emergency handling;

[0067] (2) Automatic power-off isolation: Once the leaking auxiliary machine is determined, the man-machine interaction system immediately issues an instruction to the execution module, automatically starts the power-off procedure, quickly cuts off the circuit connection of the leaking auxiliary machine, and implements effective isolation.

[0068] The real-time interaction control module, as the "central brain" of the locomotive auxiliary leakage monitoring and protection device, plays a crucial role. On the one hand, in the real-time monitoring and judgment process, operators, with the help of the man-machine interface, closely monitor the operation dynamics of the auxiliary machines in real time. By virtue of precise algorithms and based on real-time data, they can instantly identify the leaking auxiliary machines and indicate the emergency direction. On the other hand, the automatic power-off isolation link responds quickly. Once the target is locked, it immediately sends a command to the execution module, cutting off the circuit and isolating the hidden danger like lightning to ensure the safety of the locomotive.

[0069] Among them, the complete historical record module includes:

[0070] (1) Fault information storage: During the operation of the locomotive auxiliary leakage monitoring and protection device, once a fault is detected, the information collection program is immediately started; it precisely captures key fault information such as the fault number, car number, car end, fault point, and fault time, and stores them orderly in the internal storage unit, which can accommodate up to one thousand historical records, providing a data basis for subsequent analysis.

[0071] (2) Reverse order query and display: The built-in sorting algorithm of the device will arrange the stored fault information according to the rule of reverse time order, ensuring that the most recently occurred fault information is preferentially displayed at the forefront, facilitating users to quickly understand the potential risks of recent equipment operation.

[0072] (3) Paging browsing and deletion: Facing the historical records arranged in reverse order, users can easily browse the past data through the paging buttons on the operation interface. If they find that some records are no longer needed, they can directly perform the deletion operation on this interface to independently manage the historical records and maintain the efficient utilization of the storage unit.

[0073] The complete historical record module endows the locomotive auxiliary leakage monitoring and protection device with powerful "memory" and convenient query and management capabilities.

[0074] In terms of fault information storage, when the device is running, it is like a rigorous recorder. Once a fault occurs, it immediately starts the collection program, precisely grabs key information such as the fault number and car number, and stores them orderly in the storage unit that can accommodate one thousand records, laying a solid data foundation for in-depth analysis. The reverse order query and display function is like a considerate assistant. The built-in sorting algorithm arranges the fault information in reverse time order, with the latest potential risks at the top, helping users clearly see the recent risks at a glance. The paging browsing and deletion operation is even more convenient. Users can easily look back at the past by pressing the paging button and directly delete the useless records, enabling the storage unit to always serve efficiently and continuously empower equipment maintenance and optimization.

[0075] Among them, the wide-voltage adaptation power supply module means that the locomotive auxiliary leakage monitoring and protection device is powered by DC110V and supports input in the wide voltage range of DC60V to DC140V.

[0076] The wide-voltage adaptation power supply module can be regarded as the power support of the locomotive auxiliary leakage monitoring and protection device. It adopts the DC110V power supply standard and, with its excellent adaptation ability, can stably accept the wide-voltage input of DC60V - DC140V to ensure the stable operation of the device in the complex and changeable locomotive power supply environment.

[0077] Among them, the human-machine interaction display module consists of:

[0078] (1) Basic information display: After the device is turned on, the equipped liquid crystal screen immediately enters the working state. With its display and touch functions, it presents the multi-channel switch status in real time on the main interface, enabling the operator to clearly see the on-off status of each auxiliary machine line at a glance. At the same time, the RTC clock and the buzzer status are also clearly displayed, providing accurate time reference for users and understanding the alarm preparation status to ensure the basic control of the equipment operation.

[0079] (2) Function setting operation: Users can first accurately set the vehicle information, mainly covering the input and adjustment of the vehicle number and vehicle end to ensure that the equipment is accurately adapted to the corresponding locomotive. On this interface, the buzzer can also be flexibly controlled to turn off or turn on its alarm output function according to the actual scenario requirements to meet the usage preferences in different environments and achieve personalized configuration.

[0080] (3) Auxiliary function application: When a switch failure is detected and the buzzer is in the alarm state, if the user wants to temporarily silence it, they can directly click the buzzer alarm icon on the main interface to quickly eliminate the noise interference and focus on troubleshooting. In addition, considering safety and usage rights, users can also easily modify the password in the setting interface. The password is a four-digit number combination, and the system will immediately feedback the success or failure information after the modification is completed to ensure the effective execution of the operation.

[0081] When the basic information display is turned on, the liquid crystal screen lights up quickly, presenting the multi-channel switch status in an intuitive interface. With a single glance, the operator can clearly understand the on-off status of the auxiliary machine line. The RTC clock and the buzzer status are presented synchronously, laying a solid foundation for operation control; in the function setting operation, users accurately input the vehicle number and vehicle end to make the equipment accurately adapted to the locomotive, and can also turn the buzzer on or off as needed, flexibly coping with both noisy workshops and quiet garages to achieve personalization; during the application of the auxiliary function, when the fault alarm noise is disturbing, just click the buzzer icon to silence it and focus on troubleshooting; for safety considerations, the four-digit password can be easily modified, and the system will immediately feedback to ensure the rigorous and effective operation.

[0082] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0083] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Auxiliary machine leakage monitoring and protection device for locomotive, characterized in that: The device consists of a precise monitoring and basic guarantee module, a self-check and maintenance reminder module, a multi-channel flexible monitoring module, a real-time interaction and control module, a complete historical record module, a wide-voltage adaptation power supply module, and a human-computer interaction display module; Precise monitoring and basic guarantee module: The external monitoring module uses a high-precision leakage current monitoring device to continuously monitor the leakage current of the auxiliary machine circuit. Once the standard is exceeded, the circuit breaker is immediately disconnected to cut off the electrical circuit, ensuring electrical safety; Multi-channel flexible monitoring module: It supports synchronous monitoring of multiple switches, with a maximum of 16 auxiliary machine states, and the number can be customized according to user needs. Once any switch is abnormal during monitoring, it quickly activates an audible and visual alarm and stores the historical record; Real-time interaction and control module: With the help of the human-computer interaction interface, it monitors and records in real time, accurately judges the leaking auxiliary machine at the moment of failure, and automatically executes power-off isolation to ensure safety; Wide-voltage adaptation power supply module: It is powered by DC110V and is compatible with wide-voltage input of DC60V - DC140V; Human-computer interaction display module: It is equipped with an LCD screen for display and touch control. The main interface presents the status information of multiple switches, RTC clock, and buzzer in real time, supports RTC clock calibration, vehicle information and buzzer function settings, as well as mute and password modification operations. The feedback is timely and clear. The auxiliary machine leakage protector is the core of the locomotive auxiliary machine line leakage monitoring, and each module works together to protect the locomotive operation.

2. The locomotive auxiliary equipment leakage monitoring and protection device according to claim 1, characterized in that: The precise monitoring and basic guarantee module includes: (1) External monitoring module: It uses a high-precision leakage current monitoring device to continuously monitor the leakage current of the auxiliary machine circuit. Once the standard is exceeded, the circuit breaker is immediately disconnected to cut off the electrical circuit, ensuring electrical safety; (2) Auxiliary machine leakage main control module: It uses a fast-processing microcontroller, which responds quickly to leakage. The buzzer and LED indicator in the alarm part intuitively indicate abnormalities; (3) Power supply module: With an isolation transformer and a voltage stabilizing circuit, it stably powers the device under different voltage fluctuations.

3. The locomotive auxiliary equipment leakage monitoring and protection device according to claim 1, characterized in that: The self-check and maintenance reminder module means that it regularly issues a voice reminder to inform the maintenance personnel to check the working status of the device in time, such as whether the monitoring accuracy and alarm function are normal, so as to ensure that the device can always operate continuously, stably and efficiently.

4. The leakage monitoring and protection device for locomotive auxiliary equipment according to claim 1, characterized in that: The multi-channel flexible monitoring module includes: (1) Multi-channel monitoring activation: After the detection and protection device is started, it automatically activates the multi-channel switch simultaneous monitoring function to prepare for comprehensively controlling the operation of the auxiliary machine. Its monitoring ability is powerful, and it can simultaneously monitor the status of up to 16 auxiliary machines in real time; (2) Personalized configuration: Fully considering the diverse needs of users, it supports flexible configuration of the number of monitored auxiliary machines according to the actual usage scenario to ensure accurate adaptation to the monitoring requirements of different locomotives; (3) Abnormality response: During the continuous monitoring of multiple auxiliary machine circuits, once any switch is detected to be abnormal, the locomotive auxiliary machine leakage monitoring and protection device quickly responds, immediately triggers an audible and visual alarm to warn the staff, and at the same time automatically stores the historical record of this abnormality to provide a basis for subsequent fault troubleshooting.

5. The leakage monitoring and protection device for locomotive auxiliary machines according to claim 1, characterized in that: The real-time interaction and control module includes: (1) Real-time monitoring and judgment: The operator monitors the running status of locomotive auxiliary machines in real time through the man-machine interface equipped with the device. Based on the real-time collected data, the leaking auxiliary machine can be accurately locked, providing an accurate target for subsequent emergency handling. (2) Automatic power-off isolation: Once the leaking auxiliary machine is determined, the man-machine interaction system immediately issues an instruction to the execution module to automatically start the power-off procedure, quickly cut off the circuit connection of the leaking auxiliary machine, and implement effective isolation.

6. The leakage monitoring and protection device for locomotive auxiliary machines according to claim 1, characterized in that: The complete historical record module includes: (1) Fault information storage: During the operation of the locomotive auxiliary machine leakage monitoring and protection device, once a fault is detected, the information collection program is immediately started; the key fault information such as the fault number, vehicle number, vehicle end, fault point, and fault time is accurately captured and stored in the internal storage unit in an orderly manner. It can accommodate up to one thousand historical records at most, providing a data basis for subsequent analysis. (2) Reverse order query and display: The sorting algorithm built into the device arranges the stored fault information according to the rule of reverse time order, ensuring that the most recent fault information is preferentially displayed at the forefront, facilitating users to quickly understand the recent operation hidden dangers of the equipment. (3) Paging browsing and deletion: Facing the historical records arranged in reverse order, users can easily browse the past data through the paging buttons on the operation interface. If it is found that some records are no longer needed, the deletion operation can be directly executed on this interface to independently manage the historical records and maintain the efficient use of the storage unit.

7. The leakage monitoring and protection device for locomotive auxiliary machines according to claim 1, characterized in that: The wide-voltage adaptation power supply module means that the locomotive auxiliary machine leakage monitoring and protection device is powered by DC110V and supports the input of a wide voltage range from DC60V to DC140V.

8. The leakage monitoring and protection device for locomotive auxiliary machines according to claim 1, wherein: The man-machine interaction display module consists of: (1) Basic information display: After the device is turned on, the equipped liquid crystal screen immediately enters the working state. With its display and touch functions, it presents the status of multiple switches in real time on the main interface, allowing the operator to clearly see the on-off situation of each auxiliary machine circuit at a glance. At the same time, the RTC clock and the buzzer status are also clearly displayed, providing an accurate time reference for the user and understanding the alarm preparation status, ensuring the basic control of the equipment operation. (2) Function setting operation: Users can first accurately set the vehicle information, mainly covering the input and adjustment of the vehicle number and vehicle end, ensuring that the equipment accurately adapts to the corresponding locomotive. On this interface, the buzzer can also be flexibly controlled to turn off or turn on its alarm output function according to the actual scenario requirements, meeting the usage preferences in different environments and realizing personalized configuration. (3) Auxiliary function application: When a switch fault is detected and the buzzer is in the alarm state, if the user wants to temporarily silence, they can directly click the buzzer alarm icon on the main interface to quickly eliminate the noise interference and focus on fault handling. In addition, considering safety and usage permissions, users can also easily modify the password in the setting interface. The password is a four-digit number combination. After the modification is completed, the system immediately feedbacks the success or failure information to ensure the effective execution of the operation.

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