Locomotive electrical fault diagnosis system based on dual-spectrum imaging and control method thereof

Abstract

The invention provides a locomotive electrical fault diagnosis system based on dual-spectrum imaging and a control method thereof, and the system comprises at least two thermal imaging card machines which are disposed at different monitoring points in an electrical cabinet, and the different monitoring points correspond to different electrical devices; each thermal imaging card machine is used for acquiring temperature data and infrared image data of the electrical equipment; the switch is arranged in the electrical cabinet, and each thermal imaging card machine is connected with the switch; and the system host is installed in the cab and is used for acquiring fault information of the target electrical equipment according to the temperature data and a preset temperature threshold value and positioning the thermal imaging card machine corresponding to the target electrical equipment according to the fault information and the infrared image data. According to the system and the control method thereof, fine monitoring of the temperature of each electrical device in the electrical cabinet is realized, a monitoring blind area is eliminated, and accurate positioning of an over-temperature fault part is realized.

Description

Technical Field

[0001] This invention relates to the field of temperature monitoring technology, and in particular to a locomotive electrical fault diagnosis system and its control method based on dual-spectral imaging. Background Technology

[0002] Currently, domestic locomotive electrical fault monitoring mainly relies on the 6A system, while the Fire Protection Monitoring Subsystem (AFDR) is a subsystem of the 6A protection system. The 6A system is a locomotive on-board safety protection system designed for railway locomotives. The AFDR uses detection equipment to monitor the protected area of ​​the locomotive in real time and uploads the status information to the 6A central control platform to promptly remind the railway locomotive of its fire protection status.

[0003] In related technologies, AFDR can only passively alarm for fires that have already occurred. The detectors are sparsely distributed and have limited functions. In areas such as large machinery rooms, they can only cover critical equipment. The traditional point-type temperature detectors used in the system respond to the overall temperature rise of the environment, and the video monitoring only displays the entire monitoring area when the alarm occurs, which cannot accurately locate the location of the over-temperature fault. Summary of the Invention

[0004] This invention provides a locomotive electrical fault diagnosis system and its control method based on dual-spectral imaging, which solves the defects of existing AFDRs (Automatic Air Detection and Reconnaissance) systems, such as sparse detector deployment, single function, detector response dependent on the overall temperature rise of the environment, and detection of the overall temperature of the entire monitoring area, which cannot accurately locate the overheating part; the system proposed in this invention can eliminate monitoring blind spots and achieve accurate location of overheating faults.

[0005] This invention provides a locomotive electrical fault diagnosis system based on dual-spectral imaging, comprising: At least two thermal imaging card cameras are deployed at different monitoring points within the electrical cabinet, with each monitoring point corresponding to a different electrical device; each thermal imaging card camera is used to collect temperature data and infrared image data of the electrical device. A switch is deployed inside the electrical cabinet, and each thermal imaging card camera is connected to the switch. The system host is installed in the driver's cab and is connected to the switch. The system host is used to obtain fault information of the target electrical equipment based on the temperature data and a preset temperature threshold, and to locate the thermal imaging card camera corresponding to the target electrical equipment based on the fault information and the infrared image data. The target electrical equipment is one of the different electrical equipment.

[0006] The present invention also provides a locomotive electrical fault diagnosis system based on dual-spectral imaging, wherein the switch is a rail-mounted switch.

[0007] The present invention also provides a locomotive electrical fault diagnosis system based on dual-spectral imaging, wherein the system host includes: The display screen receives electrical signals transmitted by the at least two thermal imaging point-and-shoot cameras through the switch and displays the measured temperature data corresponding to each thermal imaging point-and-shoot camera.

[0008] The present invention also provides a locomotive electrical fault diagnosis system based on dual-spectral imaging, wherein the system host includes: An alarm module, the alarm module comprising at least one of an audible and visual alarm and a voice announcer.

[0009] The present invention also provides a locomotive electrical fault diagnosis system based on dual-spectral imaging, wherein the system host includes: The query module includes a point tree navigation unit, an electronic map and infrared image browsing unit, a perspective switching unit, and a screen locking unit.

[0010] The present invention also provides a locomotive electrical fault diagnosis system based on dual-spectral imaging, the system further comprising: Steel-hooped crossbar assembly; the at least two thermal imaging card cameras are fixed to the top of the electrical cabinet via the steel-hooped crossbar assembly; the steel-hooped crossbar assembly is made of stainless steel clamps and is equipped with anti-loosening bolts; The crossbar of the steel hoop crossbar assembly is an aluminum alloy guide rail with adjustable length.

[0011] The present invention also provides a locomotive electrical fault diagnosis system based on dual-spectral imaging, the system further comprising: A first power supply is deployed inside the electrical cabinet and is electrically connected to the switch. A second power supply is deployed in the driver's cab and is electrically connected to the system host; both the first and second power supplies are DC-DC wide-voltage isolated power supplies.

[0012] This invention also provides a control method for a locomotive electrical fault diagnosis system based on dual-spectral imaging, comprising: For at least two thermal imaging card cameras deployed at different monitoring points within an electrical cabinet, the thermal imaging card cameras are used to collect temperature data and infrared image data of the electrical equipment; different monitoring points correspond to different electrical equipment. The system host obtains fault information of the target electrical equipment based on the temperature data and a preset temperature threshold, and locates the thermal imaging card camera corresponding to the target electrical equipment based on the fault information and the infrared image data; wherein, the target electrical equipment is one of the different electrical equipment; the switch is deployed in the electrical cabinet, and each thermal imaging card camera is connected to the switch.

[0013] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the control method of the locomotive electrical fault diagnosis system based on dual-spectrum imaging as described above.

[0014] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the control method for the locomotive electrical fault diagnosis system based on bispectral imaging as described above.

[0015] The present invention provides a locomotive electrical fault diagnosis system and control method based on dual-spectrum imaging. By setting at least two thermal imaging card cameras at different monitoring points in the electrical cabinet, temperature data and infrared image data of different electrical equipment are acquired. By deploying a switch in the electrical cabinet, data interaction between the thermal imaging card cameras and the system host installed in the driver's cab is realized. The system host realizes fine monitoring of the temperature of each electrical equipment in the electrical cabinet, eliminates monitoring blind spots, and realizes accurate location of over-temperature faults. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is one of the structural schematic diagrams of the locomotive electrical fault diagnosis system based on dual-spectral imaging provided by the present invention.

[0018] Figure 2 This is the second schematic diagram of the locomotive electrical fault diagnosis system based on dual-spectral imaging provided by the present invention.

[0019] Figure 3 This is a flowchart illustrating the control method of the locomotive electrical fault diagnosis system based on dual-spectral imaging provided by the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of the electronic device provided by the present invention.

[0021] Figure label: 110: Thermal imaging card camera; 120: Switch; 130: System host; 131: Display screen; 132: Alarm module; 133: Query module 133; 134: External interface; 140: Steel hoop crossbar assembly; 150: Primary power supply; 160: Second power source. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "upper" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, a wired communication connection, or a wireless communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0025] In embodiments of the present invention, unless otherwise explicitly specified and limited, the first feature being "on" or "under" the second feature may be in direct contact with the first feature, or indirect contact between the first and second features through an intermediate medium.

[0026] In the description of this specification, the references to terms such as "in this embodiment," "some embodiments," and "specific" refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0027] The following is combined Figures 1-3 This invention describes a locomotive electrical fault diagnosis system and its control method based on dual-spectral imaging.

[0028] Figure 1 This is one of the structural schematic diagrams of the locomotive electrical fault diagnosis system based on dual-spectral imaging provided by the present invention. The present invention provides a locomotive electrical fault diagnosis system based on dual-spectral imaging, including: a thermal imaging card camera 110, a switch 120, and a system host 130.

[0029] At least two thermal imaging card cameras 110 are deployed at different monitoring points within the electrical cabinet, with each monitoring point corresponding to a different electrical device; each thermal imaging card camera is used to collect temperature data and infrared image data of the electrical device.

[0030] In this embodiment, each thermal imaging card camera 110 includes a visible light detection unit and an infrared detection unit.

[0031] For example, visible light sensors can be CMOS or CCD sensors; infrared sensors typically use uncooled microbolometers (such as VOx, a-Si, etc.) or cooled detectors.

[0032] In this embodiment, the thermal imaging card camera can use a beam splitter or optical filter to split the light signal into two paths, visible light and infrared light, which are then transmitted to the corresponding sensors to support dual-mode imaging of visible light and infrared light. In some embodiments, thermal imaging compact cameras can also be designed with dual-channel lenses to achieve simultaneous imaging.

[0033] In this embodiment, the infrared image pixel intensity is calibrated and converted into temperature values ​​to achieve accurate temperature monitoring.

[0034] In this embodiment, visible light and infrared images can be registered in real time, and dual-mode images can be accurately superimposed or switched to enhance the visual effect.

[0035] In this embodiment, multiple thermal imaging card cameras 110 can be installed inside the electrical cabinet, and each thermal imaging card camera 110 can perform weather temperature tracking on at least one device inside the electrical cabinet.

[0036] In this embodiment, the thermal imaging card camera 110 uses a visible light detection unit and an infrared detection unit to perform dual-spectrum thermal imaging, and detects equipment temperature changes and anomalies in real time.

[0037] The thermal imaging compact camera 110 used in this embodiment is configured as follows: Parameters: 256×192 pixels; Temperature measurement accuracy: ±2℃; The body includes 10 movable points and 10 movable areas, supporting the drawing of irregular temperature measurement frames; it supports 5-megapixel visible light and white light supplementary illumination. Installation location: Deployment density 2 units / cabinet (coverage blind area <0.1㎡); Temperature measurement mechanism: Through software modeling, multiple temperature measurement points in each equipment log are precisely selected for temperature measurement. Each temperature measurement is performed within the selected equipment by the operator, ensuring the accuracy of the temperature measurement.

[0038] In this embodiment, since the thermal imaging card camera 110 is designed to fit into small spaces and can be embedded in gaps, this embodiment supports multi-point dense deployment and multi-scenario application. Through wide-angle coverage and dense deployment, it achieves no blind spots in the monitoring of the electrical cabinet, solving the problem of the 6A system missing detection of sub-healthy components (such as wiring terminals).

[0039] The switch 120 is deployed in the electrical cabinet, and each thermal imaging card camera 110 is connected to the switch 120.

[0040] In this embodiment, the switch 120 can be an industrial-grade Ethernet switch or other type of switch, used to collect temperature data and image data from each thermal imaging card camera 110, and forward the collected data to the system host 130, thereby realizing data exchange between the thermal imaging card cameras 110. In this embodiment, the switch 120 can be installed on the side of the area under test within the electrical cabinet.

[0041] In this embodiment, the switch 120 has at least N (N ≥ number of thermal imaging card cameras 110) Ethernet ports for connecting each thermal imaging card camera 110. For example, if the system is configured with 4 thermal imaging card cameras 110, the switch 120 needs at least 4 Ethernet ports.

[0042] In this embodiment, the switch 120 continuously listens to its various ports. When a thermal imaging card camera 110 sends data, the switch 120 receives the data and forwards it to the corresponding destination (usually the system host 130) according to the destination address in the data packet. The switch 120 adopts a store-and-forward mode to ensure the integrity and reliability of the data.

[0043] The system host 130 is installed in the driver's cab and is connected to the switch 120. The system host is used to obtain fault information of the target electrical equipment based on temperature data and preset temperature thresholds, and to locate the thermal imaging card camera corresponding to the target electrical equipment based on the fault information and infrared image data. The target electrical equipment is one of different electrical equipment.

[0044] In this embodiment, the system host 130 can be installed on the instrument panel in the driver's cab, for example, by screws or clips, to ensure a secure and reliable installation.

[0045] In this embodiment, the system host 130 receives temperature data recorded by each thermal imaging card camera 110 forwarded by the switch 120, and uses a dynamic monitoring algorithm to accurately select the equipment in the equipment register to ensure that each temperature measurement is located to a specific device.

[0046] Specifically, the system host 130 receives temperature data and infrared image data from the switch 120, analyzes them, and applies a dynamic monitoring algorithm to monitor and analyze the received temperature data in real time to determine if there are any temperature anomalies. Based on a pre-set equipment register, it accurately selects devices in the infrared thermal image to ensure the accuracy of the temperature measurement area. In addition, the system host 130 can also compare the real-time temperature data with a preset temperature threshold (which can be set according to user needs) to determine whether the alarm conditions have been met. By analyzing real-time thermal imaging data, it establishes hierarchical early warning rules and a visual decision-making platform to drive a closed-loop management of "monitoring-analysis-handling-verification," improves the proactive defense capabilities of operation and maintenance, and realizes the proactive security early warning of the system host 130.

[0047] The locomotive electrical fault diagnosis system based on dual-spectrum imaging provided in this invention acquires temperature data and infrared image data of different electrical devices by setting at least two thermal imaging card cameras at different monitoring points in the electrical cabinet. By deploying a switch in the electrical cabinet, data interaction between the thermal imaging card cameras and the system host installed in the driver's cab is realized. The system host realizes fine monitoring of the temperature of each electrical device in the electrical cabinet, eliminates monitoring blind spots, and achieves accurate location of over-temperature faults.

[0048] In some embodiments, switch 120 is a rail-mounted switch 120.

[0049] In this embodiment, it can be fixed to a standard guide rail inside the electrical cabinet by guide rail clips.

[0050] For example, in this embodiment, the rail-mounted switch 120 is installed on a standard DIN rail inside the control cabinet; the switch 120 connects multiple thermal imaging cards and the system host 130, and is used to send the temperature data transmitted by each thermal imaging card to the system host 130 for subsequent analysis and processing. It can also transmit electrical signals (such as various control commands) sent by the system host 130 to a designated thermal imaging card to control the operating status and operating parameters of the thermal imaging card.

[0051] The locomotive electrical fault diagnosis system based on dual-spectrum imaging provided in this embodiment of the invention saves equipment space and facilitates maintenance and expansion by setting the switch 120 to a rail-mounted switch 120.

[0052] In some embodiments, the system host 130 includes a display screen 131, which receives electrical signals transmitted by at least two thermal imaging card cameras 110 through a switch 120 and displays the measured temperature data corresponding to each of the different thermal imaging card cameras 110.

[0053] In this embodiment, the display screen 131 can serve as a human-computer interaction platform, allowing users to query, browse, and edit relevant data or charts on the display screen 131 by inputting commands.

[0054] In this embodiment, multiple thermal imaging card cameras 110 are capable of acquiring infrared thermal images and temperature data of all electrical equipment in the electrical cabinet in real time; each card camera is configured with a unique ID.

[0055] In this embodiment, after receiving data from the rail-mounted switch 120, the system host 130 identifies the ID of each thermal imaging camera and associates the corresponding temperature data with the location information of the camera in the system. Then, the measured temperature data collected by each thermal imaging camera 110 is displayed on the display screen 131 in an intuitive manner, so that relevant technicians can keep track of the temperature status of key components of the electric locomotive at any time.

[0056] For example, the IDs and corresponding temperature values ​​of all thermal imaging point-and-shoot cameras 110 can be displayed in a list on the left side of the screen, while an electronic map of the electric locomotive can be displayed in the center of the screen, with the location of each thermal imaging point-and-shoot camera 110 marked on the electronic map and the corresponding temperature value displayed. Alternatively, the infrared thermal images collected in real time by each thermal imaging point-and-shoot camera 110 can be displayed on the right side of the display screen 131. The left, right, and center positions of the display screen here are only examples, and the specific screen position can be selected according to the user's actual needs. This embodiment does not impose specific limitations.

[0057] The locomotive electrical fault diagnosis system based on dual-spectrum imaging provided in this embodiment of the invention, by setting up a display screen 131 to receive electrical signals transmitted by at least two thermal imaging card cameras 110 through a switch 120, displays the measured temperature data corresponding to different thermal imaging card cameras 110, and provides a visualization service for the temperature information and operating status of abnormal temperature rise parts during daily maintenance.

[0058] In some embodiments, the system host 130 includes an alarm module 132, which includes at least one of an audible and visual alarm and a voice announcer.

[0059] In this embodiment, the audible and visual alarm includes a buzzer and an indicator light (flashing pop-up window); when the system detects a fire hazard, the audible and visual alarm will emit a high-intensity sound and flashing light to alert personnel in the control center.

[0060] In this embodiment, the voice broadcaster is used to broadcast user-inputted voice commands, or to issue an alarm using threshold warning words when an abnormal temperature rise alarm is triggered; the voice broadcaster broadcasts information such as the number, location, and temperature of the equipment with abnormal temperature, so that control center personnel can quickly understand the situation.

[0061] In this embodiment, the system host 130 has a built-in temperature anomaly judgment algorithm. For example, by comparing the real-time temperature data sent by each thermal imaging card camera 110 with a preset temperature threshold (based on industry standard settings), if the real-time temperature data exceeds the temperature threshold, it is determined that the temperature of the thermal imaging card camera 110 is abnormal. The alarm module 132 is immediately controlled to trigger the alarm mechanism. After the alarm is triggered, the visible light and infrared superimposed images of the alarm point are automatically associated and pushed to the driver's cab display screen 131 and the sound and light warning is activated. That is, the sound and light alarm will emit a high-intensity sound and flashing light, and the voice broadcaster will broadcast the voice. At the same time, the display screen 131 will automatically switch to the thermal image of the alarm point and highlight the point, so that the control center personnel can quickly locate the fire source.

[0062] The locomotive electrical fault diagnosis system based on dual-spectral imaging provided in this embodiment of the invention can effectively improve the safety of electrical cabinet operation by setting up an alarm module 132 to alarm electrical equipment in temperature field through various means.

[0063] In some embodiments, the system host 130 includes a query module 133, which includes a point tree navigation unit, an electronic map and infrared image browsing unit, a perspective switching unit, and a screen locking unit.

[0064] In this embodiment, a query module 133 is provided to facilitate inspection personnel and managers to quickly query and browse equipment status.

[0065] In this embodiment, technicians (such as drivers) can access real-time data through the query module 133, which supports point tree navigation, electronic maps, infrared image viewing, and manual switching of viewing angles; it automatically locks abnormal screens when an alarm is triggered; the query module 133 also supports viewing inspection tasks on a monthly basis, and provides horizontal comparison of equipment phase temperature and vertical analysis of historical temperature, making it convenient for maintenance personnel to perform maintenance management through the query module 133.

[0066] In this embodiment, the point tree navigation unit organizes all thermal imaging card cameras 110 in a tree structure, making it convenient for users to quickly locate specific devices or areas; for example, it can be organized according to a hierarchical structure of "workshop-equipment type-equipment number".

[0067] In this embodiment, the electronic map browsing unit is used to display the location of all thermal imaging card cameras 110 on the electronic map and display the temperature data of the devices in real time. Users can view detailed information about the devices by clicking on the icons on the map.

[0068] In this embodiment, the infrared image browsing unit provides real-time browsing and historical playback functions for infrared images. Users can view the temperature distribution on the device surface and the temperature change trend over time.

[0069] In this embodiment, the perspective switching unit allows users to switch between different display modes, such as list view, electronic map view, thermal image view, etc., to meet different viewing needs.

[0070] In this embodiment, the screen locking unit is used to automatically lock the abnormal screen on the display screen 131 when the system detects an abnormal situation and issues an alarm, so as to prevent the loss of key information due to accidental operation; the user can also manually unlock the screen for further analysis.

[0071] The locomotive electrical fault diagnosis system based on dual-spectrum imaging provided in this embodiment of the invention integrates multiple operation functions by setting up a query module 133, which includes a point tree navigation unit, an electronic map and infrared image browsing unit, a perspective switching unit and a screen locking unit, thereby improving the user experience and the management efficiency of the locomotive electrical fault diagnosis system.

[0072] In some embodiments, the system host 130 includes an external interface 134, which is connected to an external program.

[0073] In this embodiment, external programs include, but are not limited to, GIS systems, meteorological systems, energy management systems, or other types of databases and servers.

[0074] In this embodiment, the external interface 134 can be an API interface. The system host 130 provides a standard API interface to facilitate data access and control by external programs.

[0075] In this embodiment, the system host 130 also supports local storage. For example, the system host 130 has a built-in high-capacity solid-state drive (SSD) in its smart terminal for storing abnormal data and logs. At the same time, the system host 130 provides interfaces such as USB 3.0 for maintenance personnel to export data for a specified period of time (such as recordings 10 minutes before and after an alarm).

[0076] The locomotive electrical fault diagnosis system based on dual-spectral imaging provided in this embodiment of the invention enables data sharing with external programs through an external interface 134, thereby achieving linkage between the locomotive electrical fault diagnosis system and other smart city systems.

[0077] In some embodiments, the locomotive electrical fault diagnosis system based on dual-spectrum imaging further includes: a steel hoop crossbar assembly 140; at least two thermal imaging card cameras 110 are fixed to the top of the electrical cabinet via the steel hoop crossbar assembly 140.

[0078] This embodiment designs a wide-angle coverage installation scheme that is vibration-resistant, dustproof, and moisture-proof, based on the size of the locomotive's interior space and complex operating conditions. It comprehensively considers the fixing method (such as brackets or guide rails), material selection (high temperature resistance and vibration resistance), dustproof and moisture-proof measures, viewing angle adjustment mechanism (adjustable bracket), compatibility with existing systems, and ease of maintenance, ensuring reliable operation in the complex environment of the locomotive. In this embodiment, the thermal imaging equipment is fixed at the top of the measured area using a steel hoop-type crossbar hoisting installation method, ensuring that the temperature monitoring of key components has no blind spots and the data is accurate.

[0079] In this embodiment, when installing the steel hoop crossbar assembly 140, the steel hoop crossbar assembly 140 can be installed on the top of the electrical cabinet.

[0080] Specifically, measure the width of the electrical cabinet, adjust the length of the crossbar to match the width of the cabinet, and then use connectors to securely fix the crossbar to the top of the electrical cabinet. This installation method does not require drilling or welding in the electrical cabinet, does not damage the cabinet's structure, and is quick and convenient to install.

[0081] Furthermore, the steel hoop crossbar assembly 140 is made of stainless steel clamps and is equipped with anti-loosening bolts; the crossbar of the steel hoop crossbar assembly 140 is an aluminum alloy guide rail with movable length.

[0082] In this embodiment, a steel hoop-type crossbar assembly 140 is made of high-strength steel. The steel hoop-type crossbar assembly 140 includes a crossbar, steel hoops, connectors, etc. The length of the crossbar can be adjusted according to the width of the electrical cabinet. The steel hoops are used to fix the thermal imaging card camera 110, and the connectors are used to fix the crossbar to the top of the electrical cabinet.

[0083] In this embodiment, by adjusting the position of the stainless steel clamp on the crossbar, the monitoring angle of the thermal imaging card camera 110 can be flexibly adjusted to achieve full coverage of the components inside the electrical cabinet. Furthermore, by controlling the coordinated operation of multiple card cameras, blind spots in monitoring can be eliminated, and the accuracy of temperature measurement can be improved.

[0084] The locomotive electrical fault diagnosis system based on dual-spectrum imaging provided in this embodiment of the invention, by setting up a steel hoop crossbar assembly 140, facilitates the fixing of at least two thermal imaging card cameras 110 to the top of the electrical cabinet through the steel hoop crossbar assembly 140. This can solve the problems of inconvenient installation, poor seismic performance, and limited monitoring field of view in the existing temperature monitoring schemes for components inside the electrical cabinet of electric locomotives, improve the reliability and accuracy of temperature measurement, and provide a guarantee for the safe operation of electric locomotives.

[0085] In some embodiments, the locomotive electrical fault diagnosis system based on dual-spectrum imaging further includes: a first power supply 150, deployed in an electrical cabinet, which is electrically connected to a switch 120; and a second power supply 160, deployed in the driver's cab, which is electrically connected to a system host 130.

[0086] In this embodiment, the first power supply 150 is electrically connected to the rail-mounted switch 120 to supply power to the switch 120, while the rail-mounted switch 120 supplies power to the thermal imaging card camera 110 via a power cable. The second power supply 160 is electrically connected to the system host 130 to supply power to the system host 130. The dual power supply can share the power supply pressure, reduce the load on a single power supply, and improve the stability of the system. At the same time, the two power supplies can be maintained and replaced independently without affecting the operation of the entire system.

[0087] In some embodiments, the locomotive electrical fault diagnosis system based on dual-spectral imaging further includes a power switching module.

[0088] In this embodiment, the power switching module can automatically detect the status of the first power supply 150 and the second power supply 160, and automatically switch to the backup power supply when the main power supply fails; the power switching module can shorten the power switching time and ensure the continuous operation of the system.

[0089] The locomotive electrical fault diagnosis system based on dual-spectrum imaging provided in this embodiment of the invention provides a first power supply 150, which is deployed in the electrical cabinet and electrically connected to the switch 120; and a second power supply 160, which is deployed in the driver's cab and electrically connected to the system host 130, which can provide stable power supply to the system.

[0090] In this embodiment, both the first power supply 150 and the second power supply 160 are DC-DC wide-voltage isolated power supplies.

[0091] In this embodiment, the DC-DC wide-voltage isolated power supply modulates the locomotive power supply voltage through high-frequency switching and transformer step-down, converting it into the standard low-voltage operating voltage required by the system. This physically blocks potential electrical shocks and interference. No matter how the input voltage fluctuates, the voltage output to the host and switch remains constant, preventing the equipment from restarting due to undervoltage or burning out due to overvoltage, thereby ensuring the long-term reliable operation of the locomotive electrical fault diagnosis system.

[0092] In this embodiment, the wide-voltage isolated power supply can be configured as follows: Input range: ultra-wide 40-160V DC, compatible with both new and old vehicle models; Installation scope: Electrical isolation, zero leakage current; Fault location: Isolation and protection prevents fault propagation; Environmental adaptability: wide temperature range, stable under extreme operating conditions; In this embodiment, a DC-DC wide-voltage isolated power converter is used, with an input voltage of 40-160V DC, compatible with both new and old vehicle models, and featuring electrical isolation and anti-interference capabilities, as well as safety and environmental adaptability.

[0093] The locomotive electrical fault diagnosis system based on dual-spectral imaging provided in this embodiment of the invention sets the first power supply 150 and the second power supply 160 as DC-DC wide-voltage isolated power supplies, supporting a wide voltage input of 40–160V, which can cover mainstream vehicle models. By adopting electrical isolation, the power supply failure rate is greatly reduced, thereby ensuring the electrical safety of the system.

[0094] Figure 2 This is the second schematic diagram of the locomotive electrical fault diagnosis system based on dual-spectral imaging provided by the present invention. Figure 2 In the embodiment shown, the core components of the locomotive electrical fault diagnosis system based on dual-spectrum imaging include three identical thermal imaging card cameras, one switch, and one host. Each thermal imaging card camera sends the recorded temperature data to the switch, which then forwards it to the system host for further processing. The switch is connected to one power source, and the system host is connected to another power source, ensuring normal power supply to both the switch and the system host.

[0095] The control method of the locomotive electrical fault diagnosis system based on dual-spectral imaging provided by the present invention will be described below. The control method of the locomotive electrical fault diagnosis system based on dual-spectral imaging described below can be referred to in correspondence with the locomotive electrical fault diagnosis system based on dual-spectral imaging described above.

[0096] Figure 3 This is a flowchart illustrating the control method of the locomotive electrical fault diagnosis system based on dual-spectral imaging provided by the present invention, as shown below. Figure 3As shown, the control method of the locomotive electrical fault diagnosis system based on dual-spectral imaging includes the following steps: Step 310: For at least two thermal imaging card cameras deployed at different monitoring points in the electrical cabinet, use the thermal imaging card cameras to collect temperature data and infrared image data of the electrical equipment; different monitoring points correspond to different electrical equipment.

[0097] In this step, each thermal imaging card camera includes a visible light detection unit and an infrared detection unit.

[0098] For example, visible light sensors can be CMOS or CCD sensors; infrared sensors typically use uncooled microbolometers (such as VOx, a-Si, etc.) or cooled detectors.

[0099] In this embodiment, the thermal imaging card camera can use a beam splitter or optical filter to split the light signal into two paths, visible light and infrared light, which are then transmitted to the corresponding sensors to support dual-mode imaging of visible light and infrared light. In addition, the thermal imaging card camera can also be designed as a system with dual-channel lenses to achieve simultaneous imaging.

[0100] In this embodiment, the infrared image pixel intensity is calibrated and converted into temperature values ​​to achieve accurate temperature monitoring.

[0101] In this embodiment, visible light and infrared images can be registered in real time, and dual-mode images can be accurately superimposed or switched to enhance the visual effect.

[0102] In this embodiment, multiple thermal imaging card cameras can be installed inside the electrical cabinet, and each thermal imaging card camera can perform weather temperature tracking on at least one device inside the electrical cabinet.

[0103] In this embodiment, the thermal imaging card camera uses a visible light detection unit and an infrared detection unit to perform dual-spectrum thermal imaging, thereby detecting changes and anomalies in the device temperature in real time.

[0104] In this embodiment, since the thermal imaging card camera is small enough to fit into narrow spaces and can be embedded in gaps, this embodiment supports dense deployment at multiple points and application in multiple scenarios. Through wide-angle coverage and dense deployment, it achieves no blind spots in the monitoring of the electrical cabinet and solves the problem of the 6A system missing detection of sub-healthy components (such as wiring terminals).

[0105] Step 320: The system host obtains the fault information of the target electrical equipment based on the temperature data and the preset temperature threshold, and locates the thermal imaging card camera corresponding to the target electrical equipment based on the fault information and infrared image data; wherein, the target electrical equipment is one of different electrical equipment; the switch is deployed in the electrical cabinet, and each thermal imaging card camera is connected to the switch respectively.

[0106] In this step, the switch can be an industrial-grade Ethernet switch or other type of switch, used to aggregate temperature and image data from each thermal imaging card camera and forward the aggregated data to the system host, thereby enabling data exchange between the thermal imaging card cameras.

[0107] In this embodiment, the switch can be installed on the side of the area under test within the electrical cabinet.

[0108] In this embodiment, the switch has at least N (N ≥ number of thermal imaging card cameras) Ethernet ports for connecting each thermal imaging card camera. For example, if the system is configured with 4 thermal imaging card cameras, the switch needs at least 4 Ethernet ports.

[0109] In this embodiment, the switch continuously listens to its various ports. When a thermal imaging card camera sends data, the switch receives the data and forwards it to the corresponding destination (usually the system host) according to the destination address in the data packet. The switch adopts a store-and-forward mode to ensure the integrity and reliability of the data.

[0110] In this embodiment, the system host can be installed on the instrument panel in the driver's cab, for example, by screws or clips, to ensure a secure and reliable installation.

[0111] In this embodiment, the system host receives temperature data recorded by each thermal imaging card camera forwarded by the switch, and uses a dynamic monitoring algorithm to accurately select the equipment in the equipment register to ensure that each temperature measurement locates the specific equipment.

[0112] Specifically, the system host receives temperature data and infrared image data from the switch, analyzes them, and applies dynamic monitoring algorithms to monitor and analyze the received temperature data in real time to determine if there are any temperature anomalies. Based on a pre-set equipment register, it accurately selects devices in the infrared thermal image to ensure the accuracy of the temperature measurement area. In addition, the system host can compare the real-time temperature data with preset temperature thresholds (which can be set according to user needs) to determine whether alarm conditions have been met. By analyzing real-time thermal imaging data, it establishes hierarchical early warning rules and a visual decision-making platform to drive closed-loop management of "monitoring-analysis-handling-verification," improves the proactive defense capabilities of operation and maintenance, and realizes proactive security early warning of the system host.

[0113] The control method of the locomotive electrical fault diagnosis system based on dual-spectrum imaging provided in this invention involves setting up at least two thermal imaging card cameras at different monitoring points inside the electrical cabinet to acquire temperature data and infrared image data of different electrical equipment. By deploying a switch inside the electrical cabinet, data interaction is achieved between the thermal imaging card cameras and the system host installed in the driver's cab. The system host enables refined monitoring of the temperature of each electrical device inside the electrical cabinet, eliminating monitoring blind spots and achieving precise location of over-temperature faults.

[0114] Figure 4 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 4 As shown, the electronic device may include: a processor 410, a communication interface 420, a memory 430, and a communication bus 440, wherein the processor 410, the communication interface 420, and the memory 430 communicate with each other through the communication bus 440. The processor 410 can call logical instructions in the memory 430 to execute a control method for a locomotive electrical fault diagnosis system based on dual-spectrum imaging. This method includes: using at least two thermal imaging card cameras deployed at different monitoring points in the electrical cabinet to collect temperature data and infrared image data of electrical equipment; different monitoring points correspond to different electrical equipment; using the system host to obtain fault information of the target electrical equipment based on the temperature data and a preset temperature threshold, and locating the thermal imaging card camera corresponding to the target electrical equipment based on the fault information and infrared image data; wherein the target electrical equipment is one of the different electrical equipment; a switch is deployed in the electrical cabinet, and each thermal imaging card camera is connected to the switch.

[0115] Furthermore, the logical instructions in the aforementioned memory 430 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0116] On the other hand, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon. When executed by a processor, the computer program implements a control method for the locomotive electrical fault diagnosis system based on dual-spectrum imaging provided by the above methods. The method includes: for at least two thermal imaging card cameras deployed at different monitoring points in an electrical cabinet, using the thermal imaging card cameras to collect temperature data and infrared image data of electrical equipment; different monitoring points correspond to different electrical equipment; using a system host to obtain fault information of the target electrical equipment based on the temperature data and a preset temperature threshold, and locating the thermal imaging card camera corresponding to the target electrical equipment based on the fault information and infrared image data; wherein the target electrical equipment is one of the different electrical equipment; a switch is deployed in the electrical cabinet, and each thermal imaging card camera is connected to the switch.

[0117] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0118] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0119] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A locomotive electrical fault diagnosis system based on dual-spectral imaging, characterized in that, include: At least two thermal imaging card cameras are deployed at different monitoring points within the electrical cabinet, with each monitoring point corresponding to a different electrical device; each thermal imaging card camera is used to collect temperature data and infrared image data of the electrical device. A switch is deployed inside the electrical cabinet, and each thermal imaging card camera is connected to the switch. The system host is installed in the driver's cab and is connected to the switch. The system host is used to obtain fault information of the target electrical equipment based on the temperature data and a preset temperature threshold, and to locate the thermal imaging card camera corresponding to the target electrical equipment based on the fault information and the infrared image data. The target electrical equipment is one of the different electrical equipment.

2. The locomotive electrical fault diagnosis system based on dual-spectral imaging according to claim 1, characterized in that, The switch is a DIN rail switch.

3. The locomotive electrical fault diagnosis system based on dual-spectral imaging according to claim 1, characterized in that, The system host includes: The display screen receives electrical signals transmitted by the at least two thermal imaging point-and-shoot cameras through the switch and displays the measured temperature data corresponding to each thermal imaging point-and-shoot camera.

4. The locomotive electrical fault diagnosis system based on dual-spectral imaging according to claim 1, characterized in that, The system host includes: An alarm module, the alarm module comprising at least one of an audible and visual alarm and a voice announcer.

5. The locomotive electrical fault diagnosis system based on dual-spectral imaging according to claim 1, characterized in that, The system host includes: The query module includes a point tree navigation unit, an electronic map and infrared image browsing unit, a perspective switching unit, and a screen locking unit.

6. The locomotive electrical fault diagnosis system based on dual-spectral imaging according to claim 1, characterized in that, The system also includes: Steel-hooped crossbar assembly; the at least two thermal imaging card cameras are fixed to the top of the electrical cabinet via the steel-hooped crossbar assembly; the steel-hooped crossbar assembly is made of stainless steel clamps and is equipped with anti-loosening bolts; The crossbar of the steel hoop crossbar assembly is an aluminum alloy guide rail with adjustable length.

7. The locomotive electrical fault diagnosis system based on dual-spectral imaging according to claim 1, characterized in that, The system also includes: A first power supply is deployed inside the electrical cabinet and is electrically connected to the switch. A second power supply is deployed in the driver's cab and is electrically connected to the system host; both the first and second power supplies are DC-DC wide-voltage isolated power supplies.

8. A control method for a locomotive electrical fault diagnosis system based on dual-spectral imaging, characterized in that, include: For at least two thermal imaging card cameras deployed at different monitoring points inside an electrical cabinet, the thermal imaging card cameras are used to collect temperature data and infrared image data of the electrical equipment. Different monitoring points correspond to different electrical equipment; The system host obtains fault information of the target electrical equipment based on the temperature data and a preset temperature threshold, and locates the thermal imaging card camera corresponding to the target electrical equipment based on the fault information and the infrared image data; wherein, the target electrical equipment is one of the different electrical equipment; the switch is deployed in the electrical cabinet, and each thermal imaging card camera is connected to the switch.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the control method for the locomotive electrical fault diagnosis system based on dual-spectrum imaging as described in claim 8.

10. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the control method for the locomotive electrical fault diagnosis system based on dual-spectral imaging as described in claim 8.

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