Railway vehicle and control system and method for service life balance of pantograph device of railway vehicle

Abstract

The invention discloses a rail vehicle and a control system and method for service life balance of a pantograph device of the rail vehicle, and relates to the technical field of rail transit. The central control unit is in control connection with all the pantograph devices, the central control unit can confirm state information of all the pantograph devices, and the central control unit is used for receiving time information sent by the time unit and counting the use conditions of the pantograph devices when the state information of the pantograph devices indicates that the pantographs rise; and the pantograph devices are selected according to the use conditions of the pantograph devices. According to the control system for service life balance of the pantograph device of the railway vehicle, through the automatic control system, the problems of inaccuracy and complexity of manual selection of replacement and lifting operation of the pantograph device are solved, service life balance management of the pantograph device is achieved, the accuracy and efficiency of operation are improved, and the service life of the pantograph device is prolonged. And meanwhile, the running safety of the train is enhanced.

Description

Technical Field

[0001] This application relates to the technical field of rail transit, and particularly to a control system and method for balancing the service life of a rail vehicle and its pantograph device. Background Art

[0002] The pantograph of a rail vehicle introduces electrical energy into the vehicle's electrical system by contacting the catenary, thereby driving the train to operate. In actual operation, the performance and service life of the pantograph directly affect the operation safety and reliability of the train.

[0003] Currently, the pantograph device of a rail vehicle usually adopts a manual selection method for replacement and raising operations. This manual selection method has obvious defects: the manual selection of the replacement and raising operations of the pantograph device is easily affected by human factors, resulting in inaccurate selection, thus unable to effectively ensure the service life balance of the pantograph. The manual selection method is relatively cumbersome in operation, increasing the workload of the staff, and may not be able to make the correct selection in a timely manner in case of emergency, affecting the operation safety of the train. Summary of the Invention

[0004] The purpose of this application is to provide a control system for balancing the service life of a rail vehicle pantograph device. Through an automated control system, it solves the problems of inaccuracy and cumbersome nature of manually selecting the replacement and raising operations of the pantograph device, realizes the service life balance management of the pantograph device, improves the accuracy and efficiency of the operation, and enhances the operation safety of the train. Another purpose of this application is to provide a control method for a rail vehicle and its pantograph device service life balance.

[0005] To achieve the above purpose, this application provides a control system for balancing the service life of a rail vehicle pantograph device, including:

[0006] At least two pantograph devices;

[0007] A time unit, communicatively connected to the central control unit;

[0008] A central control unit, control-connected to all the pantograph devices. The central control unit can confirm the status information of all the pantograph devices. The central control unit is used to receive the time information sent by the time unit and count the usage of the pantograph device when the status information of the pantograph device is that the pantograph is raised, and then select the pantograph device according to the usage of the pantograph device.

[0009] In some embodiments, the pantograph device includes a pantograph valve plate, and the pantograph valve plate is control-connected to the central control unit; the control system further includes a voltage sensor and a pantograph raising relay;

[0010] The central control unit comprises:

[0011] A signal receiving module, used to obtain the state signal of the pantograph raising relay, the grid voltage signal of the voltage sensor, and the wind pressure signal of the pantograph valve plate;

[0012] A status judgment module is connected to the signal receiving module and is used to confirm the status information of the pantograph device.

[0013] In some embodiments, the state judgment module is used to use the state signal of the pantograph raising relay, the grid voltage signal of the voltage sensor, and the wind pressure signal of the pantograph valve plate as a signal pool, and to determine that the state information of the pantograph device is when the pantograph is raised by at least two of the three signals satisfying the conditions; and / or,

[0014] The central control unit also includes:

[0015] a judgment processing module, connected to the state judgment module, for counting the usage of the pantograph device when the pantograph is raised according to the time information and the state information, and then selecting the pantograph device according to the usage of the pantograph device;

[0016] The instruction sending module is connected to the judgment processing module and is used to send a pantograph raising or lowering instruction to the pantograph device.

[0017] In some embodiments, the pantograph valve plate is directly connected to the central control unit for feedback of the wind pressure signal of the pantograph valve plate;

[0018] The control system also includes an input-output unit, which is directly connected to the voltage sensor and the pantograph raising relay for communication. The input-output unit is also directly connected to the central control unit for communication to feed back the status signal of the pantograph raising relay and the grid voltage signal of the voltage sensor.

[0019] In some embodiments, the pantograph device is disposed at a different train set, and the input / output unit is disposed at the same train set as the pantograph device.

[0020] In some embodiments, the time unit includes a wireless transmission device, and the wireless transmission device is communicatively connected to the central control unit; and / or,

[0021] The time unit sent by the time unit to the central control unit is GPS time information.

[0022] The present application also provides a control method for life balance of a rail vehicle pantograph device, which is applied to the control system for life balance of the rail vehicle pantograph device, comprising:

[0023] Obtain pantograph status information: Obtain the status information of all pantograph devices, where the status information includes the status signal of the pantograph rising relay, the network voltage signal of the voltage sensor, and the wind pressure signal of the pantograph valve plate;

[0024] Confirm the pantograph status: According to the status information, confirm whether the pantograph device is in the raised state;

[0025] Receive time information: Receive the time information sent by the time unit;

[0026] Statistical usage: When the pantograph device is in the raised state, statistically analyze the usage of the pantograph device;

[0027] Select a pantograph device: Select a pantograph device according to the usage of the pantograph device;

[0028] Send a control command: Send a command to raise or lower the pantograph to the pantograph device.

[0029] In some embodiments, the step of confirming the pantograph status includes:

[0030] Signal pool judgment: Using the status signal of the pantograph rising relay, the network voltage signal of the voltage sensor, and the wind pressure signal of the pantograph valve plate as a signal pool, if at least two of the three signals are satisfied, it is determined that the pantograph device is in the raised state.

[0031] In some embodiments, the step of selecting a pantograph device includes:

[0032] Start: Start the control process;

[0033] Judge the pantograph status: Judge whether the pantograph devices of the first formation vehicle and the second formation vehicle are both available;

[0034] Process the unavailable pantograph: If the pantograph devices of the first formation vehicle and the second formation vehicle are unavailable, default to select the available pantograph device, automatically cut off the unavailable pantograph device, and the process ends;

[0035] Judge the cumulative usage time difference: If the pantograph devices of the first formation vehicle and the second formation vehicle are both available, judge whether the cumulative usage time difference between the pantograph devices of the first formation vehicle and the second formation vehicle is ≥ 24 hours;

[0036] Process the cumulative usage time difference: If the cumulative usage time difference is ≥ 24 hours, then default to select the pantograph device with less usage time, automatically cut off the other pantograph device, and the process ends;

[0037] Judge the validity of GPS time: If the cumulative usage time difference < 24 hours, judge whether the GPS time is valid;

[0038] Process invalid GPS time: If the GPS time is invalid, by default, select to raise the pantograph device of the second formation vehicle of the rear formation vehicle, and automatically cut off the pantograph device of the first formation vehicle of the front formation vehicle, and the process ends;

[0039] Judge whether the GPS date is odd or even: If the GPS time is valid, judge whether the GPS date is odd;

[0040] Process odd GPS date: If the GPS date is odd, select to raise the pantograph device of the first formation vehicle of the front formation vehicle, and automatically cut off the pantograph device of the second formation vehicle of the rear formation vehicle, and the process ends;

[0041] Process even GPS date: If the GPS date is even, select to raise the pantograph device of the second formation vehicle of the rear formation vehicle, and automatically cut off the pantograph device of the first formation vehicle of the front formation vehicle, and the process ends.

[0042] This application also provides a rail vehicle, including the control system for balancing the service life of the pantograph device of the above rail vehicle.

[0043] Compared with the above background technology, the control system for balancing the service life of the pantograph device of the rail vehicle provided by this application mainly includes at least two pantograph devices, a time unit and a central control unit, and the time unit is communicatively connected to the central control unit; the central control unit is control-connected to all pantograph devices, the central control unit can confirm the status information of all pantograph devices, the central control unit is used to receive the time information sent by the time unit and count the usage of the pantograph device when the status information of the pantograph device is that the pantograph is raised, and then select the pantograph device according to the usage of the pantograph device.

[0044] The control system for balancing the service life of the pantograph device of the rail vehicle provided by this application, by integrating at least two pantograph devices, a time unit and a central control unit, effectively solves the problems of inaccuracy and cumbersome in the manual selection of pantograph device replacement and raising operations in the prior art. Through the communication connection between the time unit and the central control unit, the accurate acquisition of time information is realized. As the core of the system, the central control unit is control-connected to all pantograph devices, and can confirm and process the status information of all pantograph devices in real time. When the status information of the pantograph device shows that the pantograph is raised, the central control unit will count the usage of the pantograph device and automatically select the pantograph device according to this information.

[0045] This automated control system not only improves the accuracy and efficiency of pantograph device management but also realizes the balanced life management of pantograph devices. By automatically selecting the pantograph device with less usage time, the system ensures that the wear and aging rates of pantograph devices are balanced, thus extending the overall service life of pantograph devices. In addition, the automated control process reduces the need for manual operation, lowers the operation risks caused by human errors, and enhances the safety of train operation. In case of an emergency, the system can quickly make the correct choice to ensure the stable operation of the train, further improving the reliability and safety of train operation. Therefore, the technical solution of this application significantly improves the intelligent level of pantograph device management through an automated control system, providing strong guarantee for the stable operation of rail vehicles.

[0046] Combined with the above structural and process descriptions, it can be seen that the control system for the balanced life of the pantograph device of this rail vehicle has at least the following beneficial effects: The control system for the balanced life of the pantograph device of this rail vehicle, through an automated technical solution, solves the problems of inaccuracy and cumbersome nature in manually selecting the replacement and raising operations of pantograph devices, realizes the balanced life management of pantograph devices, improves the accuracy and efficiency of operations, and at the same time enhances the safety of train operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of this application or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0048] Figure 1 Schematic diagram of the control system for the balanced life of the pantograph device of the rail vehicle provided in the embodiment of this application;

[0049] Figure 2 Schematic diagram of the control system for the balanced life of the pantograph device of the rail vehicle provided in another embodiment of this application;

[0050] Figure 3 Schematic diagram of the control system for the balanced life of the pantograph device of the rail vehicle provided in yet another embodiment of this application;

[0051] Figure 4 Schematic diagram of the control method for the balanced life of the pantograph device of the rail vehicle provided in the embodiment of this application.

[0052] Wherein:

[0053] Pantograph device 1, pantograph valve plate 11,

[0054] Time unit 2, wireless transmission device 21,

[0055] Central control unit 3,

[0056] Input / output unit 4,

[0057] Voltage sensor 5,

[0058] Pantograph raising relay 6. Specific embodiments

[0059] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0060] In order to enable those skilled in the art of this technology to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0061] Please refer to Figure 1 , Figure 1 which is a schematic diagram of the control system for equalizing the service life of the pantograph device of a rail vehicle provided by an embodiment of the present application.

[0062] In the first specific embodiment, the control system for equalizing the service life of the pantograph device of a rail vehicle provided by the embodiment of the present application mainly includes at least two pantograph devices 1, a time unit 2, and a central control unit 3. The time unit 2 is communicatively connected to the central control unit 3; the central control unit 3 is control-connected to all pantograph devices. The central control unit 3 can confirm the status information of all pantograph devices. The central control unit 3 is used to receive the time information sent by the time unit 2 and count the usage of the pantograph device when the status information of the pantograph device is that the pantograph is raised, and then select the pantograph device according to the usage of the pantograph device.

[0063] The control system for equalizing the service life of the pantograph device of a rail vehicle provided by the present application effectively solves the problems of inaccuracy and cumbersome operation in manually selecting the replacement and raising operations of the pantograph device in the prior art by integrating at least two pantograph devices 1, a time unit 2, and a central control unit 3. Through the communicative connection between the time unit 2 and the central control unit 3, accurate acquisition of time information is achieved. The central control unit 3, as the core of the system, is control-connected to all pantograph devices and can confirm and process the status information of all pantograph devices in real time. When the status information of the pantograph device shows that the pantograph is raised, the central control unit 3 will count the usage of the pantograph device and automatically select the pantograph device according to this information.

[0064] This automated control system not only improves the accuracy and efficiency of the pantograph device management, but also realizes the life balance management of the pantograph device. By automatically selecting the pantograph device with less usage time, the system ensures that the wear and aging speed of the pantograph device is balanced, thus extending the overall service life of the pantograph device. In addition, the automated control process reduces the need for manual operation, reduces the operation risk caused by human error, and enhances the safety of train operation. In case of emergency, the system can quickly make the correct choice to ensure the stable operation of the train, further improving the reliability and safety of train operation. Therefore, the technical solution of this application significantly improves the intelligent level of the pantograph device management through the automated control system, providing a strong guarantee for the stable operation of rail vehicles.

[0065] Combined with the above structure and process description, it can be seen that the control system for the life balance of the pantograph device of this rail vehicle has at least the following beneficial effects: The control system for the life balance of the pantograph device of this rail vehicle, through an automated technical solution, solves the problems of inaccuracy and cumbersome operation in manually selecting the replacement and raising operations of the pantograph device, realizes the life balance management of the pantograph device, improves the accuracy and efficiency of operation, and at the same time enhances the safety of train operation.

[0066] In some cases, in the control system for the life balance of the pantograph device of this application, at least two pantograph devices 1 are alternately used through the automatic control of the control system, so as to achieve the effect of balancing the usage frequency and wear degree of each pantograph device. Such a design not only optimizes the service life of the pantograph device, but also improves the reliability and stability of the whole system. In addition, the specific number of the pantograph devices 1 in this embodiment is not limited, it can be two, or three or more. The core purpose is to confirm the status information of the pantograph device 1 and count the usage situation of the raised pantograph through the central control unit 3, and then realize the balanced selection of the pantograph device 1. As for the specific implementation method of the balanced selection, it will be described in detail in the following content of this application. Through this automated selection mechanism based on status information confirmation and usage situation statistics, this control system can intelligently manage the pantograph device 1 to ensure that it can maintain the optimal working state under different operating conditions, thus extending the service life of the pantograph device and reducing the maintenance cost.

[0067] Please refer to Figure 2 , Figure 2 which is a schematic diagram of the control system for the life balance of the pantograph device of another embodiment of this application.

[0068] In some embodiments, the pantograph device 1 includes a pantograph valve plate 11, which is controllably connected to the central control unit 3; the control system further includes a voltage sensor 5 and a pantograph rising relay 6;

[0069] The central control unit 3 includes:

[0070] A signal receiving module, configured to obtain the status signal of the pantograph rising relay 6, the line voltage signal of the voltage sensor 5, and the air pressure signal of the pantograph valve plate 11;

[0071] A status judgment module, connected to the signal receiving module, for confirming the status information of the pantograph device.

[0072] In this embodiment, the design of the pantograph device 1 takes into account its interaction with the central control unit 3 and the real-time monitoring of the pantograph status. The pantograph device 1 includes a pantograph valve plate 11, which is controllably connected to the central control unit 3, so as to achieve precise control and monitoring of the pantograph status. In addition, the control system also integrates a voltage sensor 5 and a pantograph rising relay 6, and these two components are crucial for ensuring the correct operation and status monitoring of the pantograph device 1.

[0073] The central control unit 3 plays a core role in the system. It includes a signal receiving module and a status judgment module. The signal receiving module is responsible for obtaining the status signal from the pantograph rising relay 6, the line voltage signal of the voltage sensor 5, and the air pressure signal of the pantograph valve plate 11. These signals are essential for judging the current status of the pantograph device 1. The status judgment module is connected to the signal receiving module, and its function is to confirm the status information of the pantograph device. By analyzing various signals received from the signal receiving module, the status judgment module can accurately judge whether the pantograph device 1 is in the raised state.

[0074] This design allows the central control unit 3 to monitor the working status of the pantograph device 1 in real time and make a quick response based on the real-time data. For example, if the pantograph device 1 needs to be raised or lowered, the central control unit 3 can send corresponding control instructions in a timely manner to ensure that the operation of the pantograph device 1 is synchronized with the operation requirements of the train. In addition, through the precise monitoring of the status of the pantograph device 1, potential faults and damages can be prevented, thereby improving the reliability and safety of the entire system.

[0075] In addition, the design of the central control unit 3 also takes into account the scalability and flexibility of the system. By integrating different sensors and control modules, the central control unit 3 can adapt to different types of pantograph devices 1, as well as different operating environments and operating conditions. This modular design makes the system easier to maintain and upgrade, while also reducing the complexity and cost of the system. In general, the control system in this embodiment achieves efficient management and control of the pantograph device 1 through precise status monitoring and intelligent control logic, thereby improving the stability and reliability of train operation.

[0076] In some embodiments, the status judgment module is used to use the status signal of the pantograph raising relay 6, the grid voltage signal of the voltage sensor 5, and the wind pressure signal of the pantograph valve plate 11 as a signal pool, and to determine that the status information of the pantograph device is when the pantograph is raised when at least two of the three signals meet the conditions.

[0077] In this embodiment, the design of the state judgment module is to improve the accuracy and reliability of the pantograph device state judgment. The module comprehensively considers the state signal of the pantograph lifting relay 6, the grid voltage signal of the voltage sensor 5, and the wind pressure signal of the pantograph valve plate 11. These three signals together constitute a signal pool, providing multi-dimensional information support for state judgment.

[0078] First, the status signal of the pantograph raising relay 6 directly reflects the physical position of the pantograph, which is the key information for judging whether the pantograph is raised. Secondly, the network voltage signal provided by the voltage sensor 5 can indicate the electrical connection status between the pantograph and the contact network, and further verify the working status of the pantograph. Finally, the wind pressure signal of the pantograph valve plate 11 involves the air pressure status inside the pantograph, and provides auxiliary information for judging whether the pantograph is raised normally.

[0079] By adopting the method that at least two of the three signals meet the conditions, the state judgment module can more robustly determine that the state information of the pantograph device is the pantograph raised. This multi-signal fusion judgment mechanism not only improves the accuracy of the judgment, but also enhances the fault tolerance of the system. Even if a signal source is abnormal, the system can make a correct state judgment based on other normal signals.

[0080] In addition, this design also helps to reduce misjudgment caused by single signal failure, thereby avoiding unnecessary system intervention or operation and ensuring the continuity and stability of train operation. Through this comprehensive judgment method, the state judgment module can provide the central control unit 3 with more reliable and accurate pantograph state information, thereby achieving accurate control and management of the pantograph device 1 and optimizing the service life and performance of the pantograph.

[0081] In some embodiments, the central control unit 3 further includes:

[0082] A judgment processing module, connected to the status judgment module, is used to count the usage of the pantograph device when the pantograph is raised according to the time information and status information, and then select the pantograph device according to the usage of the pantograph device;

[0083] An instruction sending module, connected to the judgment processing module, is used to send a pantograph raising or lowering instruction to the pantograph device.

[0084] In this embodiment, the central control unit 3 is designed to integrate a judgment processing module, which is closely connected to the status judgment module. Its function is to use the time information and status information to count the usage of the pantograph device when it is confirmed that the pantograph device 1 is in the raised state. This step is the key to achieving the life balance of the pantograph device. Because by accurately counting the usage duration of each pantograph device, the system can identify which devices need more maintenance or replacement, thereby preventing overuse and extending the overall service life of the pantograph device.

[0085] In addition, the judgment processing module is also responsible for selecting the most suitable pantograph device to work according to the counted usage of the pantograph device. This selection process is based on the strategy of optimizing the service life of the pantograph and improving the energy efficiency ratio, ensuring that the train can continuously and stably obtain power supply during operation, while reducing the risk of operation interruption caused by pantograph failures.

[0086] The instruction sending module is connected to the judgment processing module. Its function is to convert the decision of the central control unit 3 into specific operation instructions, that is, to send a pantograph raising or lowering instruction to the pantograph device. This module is the execution part of the control system, which ensures that the decision of the central control unit can be accurately conveyed to the pantograph device to achieve automatic control. In this way, the instruction sending module not only improves the accuracy of the operation, but also reduces the need for manual intervention, thereby reducing the possibility of operation errors and improving the response speed of the system.

[0087] In some embodiments, the pantograph valve plate 11 is directly communicatively connected to the central control unit 3 to feedback the wind pressure signal of the pantograph valve plate 11;

[0088] The control system further includes an input / output unit 4. The input / output unit 4 is directly communicatively connected to the voltage sensor 5 and the pantograph raising relay 6. The input / output unit 4 is also directly communicatively connected to the central control unit 3 to feedback the status signal of the pantograph raising relay 6 and the line voltage signal of the voltage sensor 5.

[0089] In this embodiment, the pantograph valve plate 11 feeds back the air pressure signal to the central control unit 3 by directly communicating with the central control unit 3. This direct communication method improves the efficiency and reliability of signal transmission, ensuring that the central control unit 3 can obtain the accurate status information of the pantograph valve plate 11 in real time, thereby precisely controlling and monitoring the working status of the pantograph device 1.

[0090] In addition, the control system also includes an input / output unit 4, which is designed to be directly communicatively connected to the voltage sensor 5 and the pantograph rising relay 6 to obtain the necessary status signals. The input / output unit 4 not only collects the line voltage signal from the voltage sensor 5 but also collects the status signal from the pantograph rising relay 6, and feeds these key information back to the central control unit 3. Such a design ensures that the central control unit 3 can comprehensively understand the electrical and physical status of the pantograph device 1, providing a solid data basis for the automatic control and management of the system.

[0091] Through the setting of the input / output unit 4, the central control unit 3 can more accurately judge the rising status of the pantograph device 1 and perform real-time statistics on the usage of the pantograph device. This design allows the system to automatically select the most suitable pantograph device to work according to the actual usage of the pantograph device, realizing the balanced management of the service life of the pantograph device. In addition, this automatic data collection and processing method reduces the need for manual operation, reduces the operation risk caused by human error, and enhances the safety of train operation.

[0092] In some embodiments, the pantograph device 1 is provided at different formation vehicles, and the input / output unit 4 is provided at the same formation vehicle as the pantograph device 1.

[0093] In this embodiment, the pantograph device 1 is configured at different formation vehicles of the rail vehicle, while the input / output unit 4 is installed on the same formation vehicle as the pantograph device 1. Such a layout design enables the input / output unit 4 to conveniently obtain the status signal of the pantograph rising relay 6 and the line voltage signal of the voltage sensor 5 at the location of its formation vehicle. These signals are crucial for monitoring the working status of the pantograph device 1 because they can reflect the contact quality between the pantograph and the catenary and the working voltage of the pantograph.

[0094] These signals collected by the input / output unit 4 are then uniformly fed back to the central control unit 3. This design allows the central control unit 3 to centrally process the data from the input / output units 4 and the pantograph valve plates 11 of different formation vehicles, thereby comprehensively monitoring and managing the pantograph devices 1 of the entire train. This centralized management method optimizes the signal transmission and processing process, improving the efficiency and accuracy of data collection.

[0095] In addition, this layout also helps to reduce the wiring complexity inside the train, because the input / output unit 4 of each formation vehicle only needs to be associated with the voltage sensor 5, the pantograph raising relay 6 of the formation vehicle where it is located, rather than being connected across formation vehicles. Such a design simplifies the structure of the system, reduces the maintenance difficulty, and also reduces the risk of system failure caused by line faults.

[0096] In some embodiments, the time unit 2 includes a wireless transmission device 21, and the wireless transmission device 21 is communicatively connected to the central control unit 3.

[0097] In this embodiment, the design of the time unit 2 includes a wireless transmission device 21, which is communicatively connected to the central control unit 3. This design allows the time unit 2 to transmit time information to the central control unit 3 through the wireless transmission device 21, thereby realizing the real-time update and synchronization of time information. Such a communication method not only improves the flexibility of the system, but also simplifies the wiring requirements and reduces the complexity of installation and maintenance.

[0098] In some embodiments, the time unit sent by the time unit 2 to the central control unit 3 is GPS time information.

[0099] In this embodiment, the time sent by the time unit 2 to the central control unit 3 in some embodiments is GPS time information. Using GPS time information as a time reference can ensure the accuracy and global consistency of time. This is particularly important for rail vehicle systems that require precise time control and coordination, such as in scheduling, operation monitoring, and maintenance planning. By utilizing GPS time information, the central control unit 3 can more accurately perform the usage statistics and life balance management of the pantograph device 1, thereby improving the operation efficiency and reliability of the entire system.

[0100] In a specific implementation manner, the control system provided by the present application realizes the automation and intelligence of pantograph selection through the core role of the central control unit 3, in combination with the time unit 2 and at least two pantograph devices 1.

[0101] Based on network control, the central control unit 3 can receive GPS time information from the time unit 2. These accurate time data provide an accurate time reference for the usage statistics of the pantograph device; the central control unit 3 utilizes these time information and the status information of the pantograph device to dynamically adjust the selection of pantograph raising, ensuring that the usage time of the pantograph device is evenly distributed. This dynamic adjustment mechanism effectively prevents excessive wear caused by continuous use of the same pantograph device for a long time, thereby extending the service life of the pantograph device.

[0102] In addition, the design of this control system also takes into account the scalability and flexibility of the system, without limiting the number of pantograph devices 1, enabling it to adapt to the configuration requirements of different formation vehicles. Through the input / output unit 4, the system can obtain status signals from different formation vehicles and uniformly feedback them to the central control unit 3, further optimizing the signal management and control process.

[0103] The implementation of this control system not only improves the accuracy and efficiency of pantograph device management, but also reduces the operation risk caused by human errors by reducing the need for manual operations, enhancing the safety of train operation. In case of an emergency, the system can quickly make the correct choice to ensure the stable operation of the train, further improving the reliability and safety of train operation. Therefore, the technical solution of this application significantly improves the intelligent level of pantograph device management through an automated control system, providing a strong guarantee for the stable operation of rail vehicles.

[0104] Please refer to Figure 3 , Figure 3 which is a schematic diagram of the control system for the life balance of the pantograph device of the rail vehicle provided in another embodiment of this application.

[0105] In some cases, as Figure 3 shown, the rail vehicle in this embodiment is an eight-car formation EMU. In such an EMU, pantograph devices 1 are respectively arranged on the third-car formation and the sixth-car formation vehicles. The main function of these pantograph devices 1 is to contact the catenary through the carbon skateboard above their bow heads after rising, thereby introducing current into the transformer to provide the required electric energy for the entire EMU. This configuration allows the EMU to stably obtain electric energy from the catenary to support its operation and the operation of various on-board systems.

[0106] This control system is specially designed for the EMU with multiple-car formations to achieve the life balance management of the pantograph device 1. By dynamically adjusting the rising selection of the pantograph device 1, the control system can ensure that each pantograph device is evenly used, avoiding excessive wear caused by continuous use of a single pantograph for a long time. This intelligent management method not only improves the use efficiency of the pantograph device, but also extends its service life, reducing the maintenance cost and replacement frequency.

[0107] For example, when the pantograph devices 1 of the third and sixth formation vehicles are both available, the control system determines which pantograph should be raised based on the cumulative usage time of the two pantograph devices. If the usage time of one pantograph is significantly longer than the other, the system will automatically select the pantograph with the shorter usage time to be raised, thus achieving an equalization of the service life. In addition, the system also takes into account the GPS time information to further optimize the pantograph selection strategy, ensuring that the pantograph selection is based not only on the usage time but also on the specific running time and conditions of the train.

[0108] The present application also provides a control method for equalizing the service life of the pantograph device of a rail vehicle, which is applied to the control system for equalizing the service life of the pantograph device of the above-mentioned rail vehicle, and includes:

[0109] Obtain pantograph status information: Obtain the status information of all pantograph devices 1, and the status information includes the status signal of the pantograph raising relay 6, the network voltage signal of the voltage sensor 5, and the wind pressure signal of the pantograph valve plate 11;

[0110] Confirm the pantograph status: According to the status information, confirm whether the pantograph device 1 is in the raised state;

[0111] Receive time information: Receive the time information sent by the time unit 2;

[0112] Statistical usage: When the pantograph device 1 is in the raised state, statistically analyze the usage of the pantograph device 1;

[0113] Select a pantograph device: Select the pantograph device 1 according to the usage of the pantograph device 1;

[0114] Send a control command: Send a pantograph raising or lowering command to the pantograph device 1.

[0115] In this embodiment, the control method for equalizing the service life of the pantograph device of the rail vehicle provided by the present application realizes the effective management of the pantograph device 1 through a series of steps. This method first involves obtaining the status information of all pantograph devices 1, and these status information include the status signal of the pantograph raising relay 6, the network voltage signal of the voltage sensor 5, and the wind pressure signal of the pantograph valve plate 11. These information are crucial for understanding the immediate status of each pantograph device.

[0116] In the step of confirming the pantograph status, the system will judge whether the pantograph device 1 is in the raised state according to the collected status information. This confirmation process is automated and relies on accurate status signals to ensure the accuracy of the judgment. The step of receiving time information involves obtaining time data from the time unit 2, which is usually GPS time information, providing an accurate time reference for the system's decision-making.

[0117] In the step of counting usage, when the pantograph device 1 is in the raised state, the system will count its usage. This count is crucial for subsequent pantograph selection as it provides the actual usage data of each pantograph device, enabling the system to make a more reasonable selection based on the actual usage.

[0118] The step of selecting the pantograph device is to select the most suitable pantograph device to work according to the usage of the pantograph device 1. This selection process is automated and aims to optimize the service life of the pantograph device by selecting the pantograph device with less usage to achieve an even balance of life.

[0119] Finally, the step of sending control instructions involves sending a raise or lower pantograph instruction to the selected pantograph device 1 to achieve effective control of the pantograph device. These instructions ensure that the pantograph device operates according to the system's decision, thus maintaining the stable power supply and operation safety of the train.

[0120] By this method, this control system not only improves the accuracy and efficiency of pantograph device management but also realizes the balanced management of the service life of the pantograph device. By automatically selecting the pantograph device with less usage time, the system ensures that the wear and aging speed of the pantograph device are balanced, thereby extending the overall service life of the pantograph device. In addition, the automated control process reduces the need for manual operation, reduces the operation risk caused by human error, and enhances the safety of train operation. In case of an emergency, the system can quickly make the correct choice to ensure the stable operation of the train, further improving the reliability and safety of train operation. Therefore, the technical solution of this application significantly improves the intelligent level of pantograph device management through an automated control system, providing a strong guarantee for the stable operation of rail vehicles.

[0121] In some embodiments, the step of confirming the pantograph state includes:

[0122] Signal pool judgment: Using the status signal of the pantograph raise relay 6, the network voltage signal of the voltage sensor 5, and the air pressure signal of the pantograph valve plate 11 as a signal pool, if at least two of the three signals are satisfied, it is determined that the pantograph device 1 is in the raised state.

[0123] In this embodiment, the step of confirming the pantograph state adopts a comprehensive signal evaluation method, namely signal pool judgment. This method involves integrating the three independent signal sources of the status signal of the pantograph raise relay 6, the network voltage signal of the voltage sensor 5, and the air pressure signal of the pantograph valve plate 11 into a signal pool.

[0124] First, the status signal of the pantograph raising relay 6 directly reflects the physical position of the pantograph, that is, whether it is in the raised state. Secondly, the catenary voltage signal provided by the voltage sensor 5 can indicate the electrical connection status between the pantograph and the catenary, which is an important electrical parameter for evaluating the working state of the pantograph. Finally, the air pressure signal of the pantograph valve plate 11 is related to the internal air pressure state of the pantograph, which provides an additional physical parameter for judging whether the pantograph rises normally.

[0125] During the signal pool judgment process, the system is designed to determine that the pantograph device 1 is in the raised state as long as at least two signals meet the preset conditions. Such a design improves the judgment accuracy and the fault tolerance of the system. Even if one of the signal sources fails or provides inaccurate information, as long as the other two signals are normal, the system can still accurately evaluate the state of the pantograph.

[0126] In addition, this signal pool-based judgment method also helps to reduce misjudgments caused by signal interference or temporary failures. In the railway operation environment, the pantograph may be affected by various external factors, such as weather changes, physical impacts, etc. These factors may temporarily affect the accuracy of a single signal. By comprehensively considering multiple signals, the system can more robustly evaluate the true state of the pantograph, and thus make more reliable control decisions.

[0127] Please refer to Figure 4 , Figure 4 which is a schematic diagram of the control method for the life balance of the pantograph device of the rail vehicle provided by the embodiment of the present application.

[0128] In some embodiments, the steps of selecting the pantograph device include:

[0129] Start: Start the control process;

[0130] Judge the pantograph state: Judge whether the pantograph devices 1 of the first formation vehicle and the second formation vehicle are both available;

[0131] Process the unavailable pantograph: If the pantograph devices 1 of the first formation vehicle and the second formation vehicle are unavailable, then by default select the available pantograph device 1, automatically cut off the unavailable pantograph device 1, and the process ends;

[0132] Judge the cumulative usage time difference: If the pantograph devices 1 of the first formation vehicle and the second formation vehicle are both available, judge whether the cumulative usage time difference between the pantograph devices 1 of the first formation vehicle and the second formation vehicle is ≥ 24 hours;

[0133] Process the cumulative usage time difference: If the cumulative usage time difference is ≥ 24 hours, then by default select the pantograph device 1 with less usage time, automatically cut off the other pantograph device 1, and the process ends;

[0134] Judge the validity of GPS time: If the cumulative usage time difference < 24 hours, judge whether the GPS time is valid;

[0135] Process invalid GPS time: If the GPS time is invalid, by default, select to raise the pantograph device 1 of the second formation vehicle of the rear formation vehicle, and automatically cut off the pantograph device 1 of the first formation vehicle of the front formation vehicle, and the process ends;

[0136] Judge whether the GPS date is odd or even: If the GPS time is valid, judge whether the GPS date is odd;

[0137] Process odd GPS date: If the GPS date is odd, then select to raise the pantograph device 1 of the first formation vehicle of the front formation vehicle, and automatically cut off the pantograph device 1 of the second formation vehicle of the rear formation vehicle, and the process ends;

[0138] Process even GPS date: If the GPS date is even, then select to raise the pantograph device 1 of the second formation vehicle of the rear formation vehicle, and automatically cut off the pantograph device 1 of the first formation vehicle of the front formation vehicle, and the process ends.

[0139] In some cases, continue to take an eight - formation EMU as an example. Pantograph devices 1 are respectively set on the third - formation vehicle and the sixth - formation vehicle. As Figure 3 shown, the first formation vehicle of the front formation vehicle is the leading vehicle, the pantograph device 1 of the first formation vehicle of the front formation vehicle is the front pantograph, the second formation vehicle of the rear formation vehicle is the trailing vehicle, and the pantograph device 1 of the second formation vehicle of the rear formation vehicle is the rear pantograph.

[0140] In this embodiment, the step of selecting the pantograph device is a detailed and elaborate process aimed at ensuring the balanced management of the lifespan of the pantograph device. This process starts from the startup control flow. First, the status of the pantograph devices 1 of the first formation vehicle and the second formation vehicle is judged to confirm whether they are both available.

[0141] If it is found that the pantograph device 1 of any formation vehicle is unavailable, the system will default to select the available pantograph device 1 and automatically cut off the unavailable pantograph device 1, thus ending the current process. This step ensures that at least one pantograph device of the train is in a working state, ensuring the normal operation of the train.

[0142] When it is confirmed that the pantograph devices 1 of both groups of vehicles are available, the system will enter the next step, that is, to judge whether the difference in the cumulative usage time of these two groups of pantograph devices 1 reaches or exceeds 24 hours. If the difference reaches or exceeds 24 hours, the system will default to select the pantograph device 1 with less usage time, and at the same time automatically cut off the other pantograph device 1, so as to realize the rotation use of the pantograph device, avoid overuse of a single pantograph device, and thus extend its service life.

[0143] If the difference in cumulative usage time is less than 24 hours, the system will judge the validity of the GPS time. If the GPS time is invalid, the system will default to select the pantograph device 1 of the second formation vehicle of the rear formation vehicle and automatically cut off the pantograph device 1 of the first formation vehicle of the front formation vehicle, so as to ensure that the power supply of the train is not affected.

[0144] Finally, if the GPS time is valid, the system will judge whether the GPS date is odd. According to the odd or even number of the date, the system will select the corresponding pantograph device 1 to rise and automatically cut off the pantograph device 1 of the other formation vehicle. This intelligent selection mechanism further optimizes the usage efficiency and life balance of the pantograph device.

[0145] In summary, in this embodiment, the steps of selecting the pantograph device realize the intelligent management and automatic control of the pantograph device through a series of logical judgments and operations, effectively improve the reliability and safety of train operation, and at the same time extend the service life of the pantograph device.

[0146] In a specific implementation manner, the present application effectively solves the problem in the prior art that manually selecting the pantograph to rise according to the date cannot effectively ensure the life balance of the pantograph through the control method for the life balance of the pantograph device. The present application can automatically control the selection of the pantograph to rise according to the cumulative usage of the pantograph and the GPS time. This method involves a "pantograph rising" state judgment technology, and comprehensively judges through the pantograph rising pressure value, the state of the pantograph rising relay, and the network voltage value to ensure the accuracy of the pantograph rising state judgment. In addition, it also involves a pantograph selection method, which automatically selects the pantograph through the GPS time, the state of the pantograph, and the cumulative usage of the pantograph.

[0147] The control method provided by the present application obtains the status information of all pantograph devices, including the status signal of the pantograph rising relay, the network voltage signal of the voltage sensor, and the air pressure signal of the pantograph valve plate. These information are crucial for understanding the instant status of each pantograph device. In the step of confirming the pantograph status, the system judges whether the pantograph device is in the rising state according to the collected status information. This confirmation process is automated and relies on accurate status signals to ensure the accuracy of the judgment.

[0148] The step of receiving time information involves obtaining time data from a time unit, which is usually GPS time information, providing an accurate time reference for the system's decision-making. In the step of statistical usage, when the pantograph device is in the raised state, the system will count its usage. This statistic is crucial for subsequent pantograph selection as it provides the actual usage data of each pantograph device, enabling the system to make a more reasonable choice based on the actual usage.

[0149] The step of selecting a pantograph device is to select the most suitable pantograph device for operation according to the usage of the pantograph device. This selection process is automated and aims to optimize the service life of the pantograph device by choosing the pantograph device with less usage to achieve an even distribution of life. The step of sending control instructions involves sending a raise or lower pantograph instruction to the selected pantograph device to achieve effective control of the pantograph device. These instructions ensure that the pantograph device operates according to the system's decision, thus maintaining the stable power supply and operation safety of the train.

[0150] This application also provides a rail vehicle, including the control system for equalizing the service life of the pantograph device of the above-mentioned rail vehicle.

[0151] The rail vehicle should have all the beneficial technical effects of the control system for equalizing the service life of the pantograph device of the above-mentioned rail vehicle. By integrating the control system for equalizing the service life of the pantograph device of the above-mentioned rail vehicle, intelligent management and maintenance of the pantograph device 1 are achieved. The design of the rail vehicle fully considers the operation efficiency and maintenance requirements of the pantograph device, ensuring the stability and reliability of the power supply during the train's operation.

[0152] By applying the service life equalization control system, the rail vehicle can automatically make dynamic adjustments according to the usage of the pantograph device 1 and GPS time information, optimizing the working state of the pantograph device. Such a design not only improves the usage efficiency of the pantograph device, extends its service life, but also reduces maintenance costs and potential operation risks.

[0153] In addition, the control system of the rail vehicle improves the safety of train operation through precise condition monitoring and intelligent control logic. In case of an emergency, the system can quickly respond to ensure the stable operation of the train, further enhancing the reliability and safety of train operation. Therefore, the rail vehicle provided by this application, through its control system for equalizing the service life of the pantograph device, demonstrates significant technical advantages and practical value, providing a comprehensive solution for the stable operation and maintenance of rail vehicles.

[0154] It should be noted that many components mentioned in this application are common standard components or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or by conventional experimental methods.

[0155] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0156] The above has introduced in detail the control system and method for lifespan balancing of the rail vehicle and its pantograph device provided in this application. Specific examples are used in this article to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of this application, several improvements and modifications can still be made to this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A control system for life balance of a pantograph device of a railway vehicle, characterized in that: include: At least two pantograph devices; A time unit, communicatively connected to the central control unit; A central control unit is connected to the control of all the pantograph devices. The central control unit can confirm the status information of all the pantograph devices. The central control unit is used to receive the time information sent by the time unit and count the usage of the pantograph device when the status information of the pantograph device is that the pantograph is raised, and then select the pantograph device according to the usage of the pantograph device.

2. The control system according to claim 1, characterized in that: The pantograph device includes a pantograph valve plate, and the pantograph valve plate is control-connected to the central control unit; the control system also includes a voltage sensor and a pantograph raising relay; The central control unit comprises: A signal receiving module, used to obtain the state signal of the pantograph raising relay, the grid voltage signal of the voltage sensor, and the wind pressure signal of the pantograph valve plate; A status judgment module is connected to the signal receiving module and is used to confirm the status information of the pantograph device.

3. The control system according to claim 2, characterized in that: The state judgment module is used to use the state signal of the pantograph raising relay, the grid voltage signal of the voltage sensor, and the wind pressure signal of the pantograph valve plate as a signal pool, and to determine that the state information of the pantograph device is when the pantograph is raised by at least two of the three signals satisfying the conditions; and / or, The central control unit also includes: a judgment processing module, connected to the state judgment module, for counting the usage of the pantograph device when the pantograph is raised according to the time information and the state information, and then selecting the pantograph device according to the usage of the pantograph device; The instruction sending module is connected to the judgment processing module and is used to send a pantograph raising or lowering instruction to the pantograph device.

4. The control system according to claim 2, characterized in that: The pantograph valve plate is directly connected to the central control unit for communication so as to feed back the wind pressure signal of the pantograph valve plate; The control system also includes an input-output unit, which is directly connected to the voltage sensor and the pantograph raising relay for communication. The input-output unit is also directly connected to the central control unit for communication to feed back the status signal of the pantograph raising relay and the grid voltage signal of the voltage sensor.

5. The control system according to claim 4, characterized in that: The pantograph device is provided at a different train set, and the input / output unit is provided at the same train set as the pantograph device.

6. The control system according to claim 1, characterized in that: The time unit comprises a wireless transmission device, and the wireless transmission device is communicatively connected with the central control unit; and / or, The time unit sent by the time unit to the central control unit is GPS time information.

7. A method for controlling the life balance of a pantograph device of a railway vehicle, applied to the control system for the life balance of a pantograph device of a railway vehicle as claimed in any one of claims 1 to 6, characterized in that: include: Obtain pantograph status information: Obtain status information of all pantograph devices, including a status signal of a pantograph raising relay, a grid voltage signal of a voltage sensor, and a wind pressure signal of a pantograph valve plate; Confirming the pantograph status: confirming whether the pantograph device is in a raised state according to the status information; Receive time information: receive time information sent by the time unit; Statistics of usage: When the pantograph device is in the raised state, statistics of the usage of the pantograph device are collected; Select the pantograph device: Select the pantograph device according to its usage; Send control instructions: Send a command to raise or lower the pantograph device.

8. The control method according to claim 7, characterized in that: The step of confirming the pantograph status comprises: Signal pool judgment: The status signal of the pantograph lifting relay, the grid pressure signal of the voltage sensor, and the wind pressure signal of the pantograph valve plate are used as the signal pool. If at least two of the three signals meet the conditions, it is determined that the pantograph device is in the raised state.

9. The control method according to claim 7, characterized in that: The step of selecting the pantograph device comprises: Start: start the control process; Determine the pantograph status: determine whether the pantograph devices of the first train set and the second train set are both available; Processing unavailable pantographs: If the pantograph devices of the first and second train sets are unavailable, the available pantograph devices are selected by default, and the unavailable pantograph devices are automatically cut off, and the process ends; Determine the difference in accumulated usage time: if the pantograph devices of the first train set and the second train set are both available, determine whether the difference in accumulated usage time of the pantograph devices of the first train set and the second train set is ≥ 24 hours; Processing of the difference in cumulative usage time: If the difference in cumulative usage time is ≥ 24 hours, the pantograph device with less usage time is selected by default, and the other pantograph devices are automatically cut off, and the process ends; Determine the validity of GPS time: If the cumulative usage time difference is less than 24 hours, determine whether the GPS time is valid; Processing invalid GPS time: If the GPS time is invalid, the pantograph device of the second marshaling vehicle, which is the rear marshaling vehicle, is raised by default, and the pantograph device of the first marshaling vehicle, which is the front marshaling vehicle, is automatically cut off, and the process ends; Determine whether the GPS date is odd or even: If the GPS time is valid, determine whether the GPS date is an odd number; Processing odd-number GPS date: If the GPS date is odd-numbered, the pantograph device of the first marshaling vehicle, which is the front marshaling vehicle, is raised, and the pantograph device of the second marshaling vehicle, which is the rear marshaling vehicle, is automatically cut off, and the process ends; Processing even-numbered GPS dates: If the GPS date is an even number, the pantograph device of the second vehicle in the rear vehicle group is raised, and the pantograph device of the first vehicle in the front vehicle group is automatically cut off, and the process ends.

10. A rail vehicle, characterized in that: A control system for life equalization of a rail vehicle pantograph device comprising the control system as claimed in any one of claims 1 to 6.

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