Railway vehicle control system for regional intercity traffic
By designing a centralized rail vehicle control system, the problems of large signal transmission delay and low control accuracy in the prior art are solved, efficient, safe and comfortable operation of rail vehicles are achieved, and the service quality and operation management level of regional intercity transportation are improved.
Patent Information
- Application Number
- CN202411906529.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-03-28
AI Technical Summary
The signal transmission delay of existing urban rail transit vehicles is large, and the distribution control method increases the difficulty of coordination between the traction subsystem and the brake subsystem, resulting in low vehicle control accuracy.
Design a rail vehicle control system for regional intercity traffic, including a central control center, a train automatic control system, a station control system, a communication network system, an operation plan management module, a train position and speed monitoring module, a safety protection module and a equipment status monitoring and maintenance module. The system achieves efficient, safe and comfortable rail vehicle operation through centralized scheduling, autonomous driving, automatic protection, real-time monitoring and equipment status monitoring.
It has achieved efficient, safe and comfortable operation of rail vehicles, improved the service quality and operation management level of regional intercity transportation, and has good scalability and adaptability, and can be continuously upgraded and improved according to regional transportation development and technological progress.
Smart Images

Figure CN119705560A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of rail transportation, and in particular to a rail vehicle control system for regional intercity transportation. Background Art
[0002] Current urban rail transit vehicles may include a traction subsystem, a braking subsystem and a control network, wherein the traction subsystem is used to achieve traction of the vehicle, and the braking subsystem is used to achieve braking of the vehicle, that is, the traction and braking of the vehicle are achieved in a distributed control manner, and the control network only participates in the transmission of instructions and the forwarding of signals;
[0003] In the process of transmitting commands and forwarding signals to the vehicle, the signal transmission delay will increase. In addition, the distributed control method increases the difficulty of coordination between the traction subsystem and the braking subsystem, resulting in low vehicle control accuracy.
[0004] Therefore, a rail vehicle control system for regional intercity transportation is proposed. Summary of the invention
[0005] The purpose of the present invention is to provide a rail vehicle control system for regional intercity transportation. The regional intercity transportation rail vehicle control system of the present application can realize efficient, safe and comfortable operation of rail vehicles, improve the service quality and operation management level of regional intercity transportation, and meet the travel needs of passengers. At the same time, the system has good scalability and adaptability, and can be continuously upgraded and improved according to the needs of regional transportation development and technological progress to solve the problems raised in the above background technology.
[0006] To achieve the above object, the present invention provides the following technical solution: a rail vehicle control system for regional intercity transportation, characterized in that it includes:
[0007] Central Control Center: Responsible for the overall dispatching and monitoring of intercity rail vehicle operations in the entire region. Receive information from various stations, vehicles, meteorological monitoring systems, and power supply systems;
[0008] Automatic train control system: installed on each rail vehicle, including automatic train control, automatic train protection and automatic train monitoring subsystems;
[0009] Station control system: deployed in each station, mainly responsible for the control of train entry and exit, platform screen door control and information interaction with passengers;
[0010] Communication network system: A combination of wired and wireless communication is used to realize the central control center, train automatic control system and communication network system, and the stable communication between the train and the ground control system during high-speed operation;
[0011] Operation plan management module: formulate long-term and short-term train operation plans in advance based on historical passenger flow data and activity arrangements in the area;
[0012] Train location and speed monitoring module: accurately obtain the train location and speed information, and conduct train dispatching and station operation management;
[0013] Safety protection module: Based on the train's position, speed, speed limit information of the track line, and signal system status, a safety protection model is established to continuously calculate the train's safe operation envelope. If the train's operating status exceeds the safety envelope, emergency braking is immediately triggered. At the same time, communication is carried out with the automatic monitoring system of adjacent trains to achieve safe interval control between trains and prevent train rear-end collisions.
[0014] Equipment status monitoring and maintenance module: Real-time monitoring of various equipment on rail vehicles, such as traction systems, braking systems, door systems, on-board communication equipment, and track infrastructure along the line, such as track circuits, signal machines, and power supply systems. The operating status information of the equipment, such as temperature, pressure, current, and voltage, is transmitted to the central control center. If equipment failure or abnormality is detected, an alarm is issued in a timely manner, and fault diagnosis information and maintenance suggestions are provided to maintenance personnel. At the same time, a reasonable equipment maintenance plan is formulated based on the equipment usage and maintenance records, and preventive maintenance work is arranged in advance.
[0015] Preferably, the equipment status monitoring and maintenance module uses a high-precision, high-reliability sensor network, and the key equipment of the rail vehicle, such as the traction motor, the braking system, and the electrical control system, deploys various types of sensors, including temperature sensors, using high-precision thermistors or thermocouples to accurately measure the temperature changes of key parts of the equipment with an accuracy of ±0.5°C, pressure sensors to measure the pressure of the hydraulic or pneumatic system, vibration sensors, and current and voltage sensors;
[0016] In terms of track infrastructure along the line, current sensors and signal quality monitoring sensors are installed in the track circuit to monitor the current changes and signal transmission quality of the track circuit; status monitoring sensors are installed on the signal machines, including brightness monitoring of signal lights and position monitoring of signal conversion mechanisms; in the power supply system, oil temperature, oil pressure, and insulation resistance monitoring sensors are installed on the transformers and switch cabinet equipment of the substations, as well as sensors for monitoring the tension and wear of the contact network.
[0017] Preferably, the equipment status monitoring and maintenance module adopts an efficient data transmission channel, utilizes the existing communication network of the rail vehicle, adopts a dedicated data transmission protocol, sets a higher transmission priority for the equipment status data, compresses and encrypts the data, adopts advanced LZ77 or LZ78 compression algorithms, increases the data compression rate to more than 50%, and adopts encryption algorithms such as AES to encrypt the data to prevent the data from being stolen or tampered with during transmission.
[0018] Preferably, the equipment status monitoring and maintenance module includes optimization of fault diagnosis and early warning mechanisms, introduces a fault diagnosis algorithm based on artificial intelligence and machine learning, and uses a large amount of historical equipment operation data and fault cases as training samples to train a fault diagnosis model.
[0019] Preferably, the equipment status monitoring and maintenance module includes a graded warning system, and a graded warning mechanism is established according to the severity of the fault and the impact on the safety of train operation.
[0020] Preferably, the equipment status monitoring and maintenance module includes maintenance planning and resource management optimization, dynamic maintenance plan generation, based on the real-time operating status of the equipment, historical fault data and predicted remaining service life of the equipment.
[0021] Preferably, the maintenance plan and resource management optimization includes maintenance resource management, establishing a maintenance resource database, including maintenance personnel information, maintenance tools and equipment information, automatically matching required maintenance resources according to the maintenance plan, and making resource allocation work in advance.
[0022] Preferably, the equipment status monitoring and maintenance module includes remote maintenance and collaboration function optimization, and maintenance personnel connect to the control system of the rail vehicle through a remote terminal to obtain the equipment's operating status data in real time and perform remote fault diagnosis.
[0023] Preferably, the remote maintenance and collaboration function optimization includes maintaining a collaboration platform, and establishing a maintenance collaboration platform for maintenance personnel from different departments to share information and collaborate.
[0024] Compared with the prior art, the present invention has the following beneficial effects:
[0025] The regional intercity transportation rail vehicle control system of this application can realize the efficient, safe and comfortable operation of rail vehicles, improve the service quality and operation management level of regional intercity transportation, and meet the travel needs of passengers. At the same time, the system has good scalability and adaptability, and can be continuously upgraded and improved according to the needs of regional transportation development and technological progress. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0027] Figure 1 It is a block diagram of the rail vehicle control system for intercity transportation of the present invention;
[0028] Figure 2 It is a block diagram of the equipment status monitoring and maintenance module of the present invention;
[0029] Figure 3 This is a flow chart of the rail vehicle control system for intercity transportation of the present invention. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0031] See also Figures 1 to 3 , the present invention provides a technical solution:
[0032] A rail vehicle control system for regional intercity transportation includes a central control center (CCC):
[0033] Responsible for the overall dispatching and monitoring of intercity rail vehicle operations in the entire region. Receive information from various stations, vehicles and other related systems (such as weather monitoring systems, power supply systems, etc.).
[0034] Based on the preset operation plan, real-time passenger flow data, line conditions, etc., the train operation timetable is generated and optimized, and operation instructions are issued to each train control system, including the train departure time, stop points, operating speed, etc.
[0035] Unified deployment of rail vehicle resources in the entire region, emergency dispatch strategies for handling emergencies (such as equipment failures, natural disasters, etc.), to ensure the safety and efficiency of operations.
[0036] Automatic Train Control (ATC):
[0037] Installed on every rail vehicle, it includes automatic train operation (ATO), automatic train protection (ATP) and automatic train monitoring (ATS) subsystems.
[0038] The ATO subsystem automatically controls the train's traction, braking and parking according to the operating instructions issued by the CCC and the train's position, speed, track line information, etc. obtained by the on-board sensors, realizes automatic driving of the train, ensures that the train runs smoothly according to the predetermined speed curve, and improves the operating comfort and punctuality.
[0039] The ATP subsystem is the core of train operation safety. It monitors the train's running speed, position and distance to obstacles ahead (including other trains, track fault points, etc.) in real time. Once a potential dangerous situation is detected (such as overspeed, over-advancing signals, etc.), the emergency braking system is automatically triggered to stop the train and prevent accidents.
[0040] The ATS subsystem is responsible for communicating with the CCC, uploading the real-time operating status of the train (such as position, speed, status of on-board equipment, etc.) to the CCC, receiving the operation plan and control instructions issued by the CCC, and conveying them to the ATO and ATP subsystems to realize remote monitoring and scheduling of the train.
[0041] Station Control System (SSC):
[0042] Deployed at various stations, it is mainly responsible for the entry and exit control of trains in the station, the control of platform screen doors, and the interaction of information related to passengers.
[0043] Maintain communication with CCC, receive train arrival and departure information and operation plan change information, control the opening and closing timing of platform screen doors, ensure safe isolation between trains and platforms and smooth boarding and alighting of passengers.
[0044] Collect passenger flow information in the station (such as the number of people entering and leaving the station, peak passenger flow hours, etc.) and upload it to CCC so that CCC can adjust and optimize the operation plan. At the same time, set up a passenger information display system (PIDS) in the station to show passengers the train arrival time, line information, transfer guide, etc., to improve passengers' travel experience.
[0045] Communication network system:
[0046] Build a high-speed, reliable and secure communication network to realize information transmission and interaction between CCC, ATC, SSC and other related systems.
[0047] A combination of wired communication (such as fiber optic networks) and wireless communication (such as LTE-R or 5G) is used to ensure stable communication between the train and the ground control system during high-speed operation.
[0048] The communication network should have a redundant design to improve the reliability of the system and prevent a single point failure from paralyzing the entire control system.
[0049] Operation plan management module:
[0050] When operating in the CCC, long-term (monthly, quarterly) and short-term (daily, weekly) train operation plans are formulated in advance based on historical passenger flow data, event arrangements in the region (such as sports events, large conferences, etc.), holidays and other factors.
[0051] The operation plan can be adjusted dynamically according to the real-time passenger flow changes and emergencies. For example, the train frequency can be increased during peak passenger flow periods, or when a line fails, the train route and stop points can be adjusted in a timely manner to guide passengers to transfer.
[0052] Train position and speed monitoring module:
[0053] In the ATC system, the train's position and speed information is accurately obtained through various sensors such as the on-board global positioning system (GPS), inertial measurement unit (IMU), track circuits, and transponders.
[0054] This information is transmitted to the ATP and ATO subsystems in real time for train operation control and safety protection. At the same time, the train location information is uploaded to the CCC and SSC for train dispatching and station operation management.
[0055] Security protection module:
[0056] The core functional module in the ATP subsystem establishes a safety protection model based on the train's position, speed, speed limit information of the track line, signal system status, etc.
[0057] The safe operating envelope of the train is constantly calculated, and once the train's operating status exceeds the safe envelope, emergency braking is immediately triggered. At the same time, it communicates with the ATP system of adjacent trains to achieve safe interval control between trains and prevent train rear-end collisions.
[0058] Equipment status monitoring and maintenance module:
[0059] Real-time monitoring of various equipment on rail vehicles (such as traction systems, braking systems, door systems, on-board communication equipment, etc.) and track infrastructure along the line (such as track circuits, signal machines, power supply systems, etc.).
[0060] The equipment's operating status information (such as temperature, pressure, current, voltage and other parameters) is transmitted to CCC. Once a device failure or abnormality is detected, an alarm is issued in a timely manner, and fault diagnosis information and repair suggestions are provided to maintenance personnel. At the same time, according to the equipment's usage and maintenance records, a reasonable equipment maintenance plan is formulated, and preventive maintenance work is arranged in advance to improve the reliability and service life of the equipment.
[0061] System control flow:
[0062] Preparation before operation:
[0063] The CCC issues operation preparation instructions to each station and train according to the operation plan. The station control system checks the operating status of platform screen doors and station equipment (such as elevators, escalators, etc.) to ensure the normal operation of station facilities.
[0064] The train control system performs self-inspection on the train, including inspection of onboard equipment (such as the ATC system, communication equipment, traction and braking system, etc.), and after confirming that the train is in good condition, waits for departure instructions.
[0065] Train departures:
[0066] The CCC sends departure instructions to the train's ATC system according to the operation schedule. The ATO subsystem controls the train's traction system according to the instructions, so that the train starts slowly and accelerates to the operating speed according to the preset speed curve.
[0067] During the train departure process, the ATP subsystem monitors the speed and position of the train in real time to ensure the safe operation of the train during the departure process and prevent the train from running into signals or exceeding the speed limit.
[0068] Interval operation:
[0069] When the train is running in the section, the ATO subsystem automatically adjusts the speed of the train according to the operation plan issued by the CCC and the information obtained by the on-board sensors to maintain a safe distance from the train in front.
[0070] The ATP subsystem continuously monitors the running status of the train and immediately triggers emergency braking once an abnormal situation is detected (such as foreign objects on the track, failure of the train ahead, etc.). At the same time, the train maintains real-time communication with the CCC and SSC through the communication network, uploading information such as the train's location, speed, and equipment status.
[0071] Train Arrival:
[0072] When the train approaches the station, the ATO subsystem gradually slows down based on the information provided by the station control system, allowing the train to stop smoothly at the designated location on the platform.
[0073] The ATP subsystem ensures the safety of trains entering the station and prevents them from crossing the platform stop point. After the train stops, the station control system controls the platform screen door to open synchronously with the train door to facilitate passengers to get on and off the train.
[0074] Passenger boarding and alighting and platform operations:
[0075] The station control system monitors passengers getting on and off the train, collects passenger flow information through platform cameras and sensors, and uploads it to the CCC. At the same time, station staff clean the platform and inspect equipment.
[0076] When the train's stop time is over, the station control system controls the platform screen doors and train doors to close, and the train prepares to leave the station.
[0077] Train departure:
[0078] The ATO subsystem controls the train to start leaving the station according to the instructions of the CCC and drive to the destination according to the operation plan. During the departure process, the ATP subsystem continues to ensure the safe operation of the train to prevent conflicts with subsequent trains.
[0079] End of operation:
[0080] When the operation is over, CCC issues an order to all stations and trains to end the operation. The train control system controls the train to return to the depot or vehicle depot for equipment inspection, maintenance, and charging. The station control system shuts down the station equipment, organizes the operation data, and uploads it to CCC for archiving and analysis.
[0081] Through the regional intercity transportation rail vehicle control system designed above, efficient, safe and comfortable operation of rail vehicles can be achieved, the service quality and operation management level of regional intercity transportation can be improved, and the travel needs of passengers can be met. At the same time, the system has good scalability and adaptability, and can be continuously upgraded and improved according to the needs of regional transportation development and technological progress.
[0082] Equipment status monitoring and maintenance modules include:
[0083] Data collection and transmission optimization
[0084] Using high-precision and high-reliability sensor networks:
[0085] For key equipment of rail vehicles, such as traction motors, braking systems, electrical control systems, etc., various types of sensors are deployed, including temperature sensors (using high-precision thermistors or thermocouples, which can accurately measure temperature changes in key parts of the equipment with an accuracy of up to ±0.5°C), pressure sensors (measuring the pressure of hydraulic or pneumatic systems, with the range and accuracy customized according to the actual needs of the equipment, such as the braking system pressure sensor with an accuracy of up to ±0.1MPa), vibration sensors (used to monitor the operating vibration of the equipment, which can detect tiny vibration amplitudes, and the frequency range covers the main frequency bands of the equipment operation) and current and voltage sensors (accurately measuring the working current and voltage of electrical equipment, with current sensors with an accuracy of up to ±0.5% and voltage sensors with an accuracy of up to ±0.2%), etc.
[0086] In terms of track infrastructure along the line, current sensors and signal quality monitoring sensors are installed in the track circuit to monitor the current changes and signal transmission quality of the track circuit; status monitoring sensors are installed on the signal machines, including brightness monitoring of signal lights and position monitoring of signal conversion mechanisms; in the power supply system, monitoring sensors such as oil temperature, oil pressure, and insulation resistance are installed on transformers, switch cabinets and other equipment in substations, as well as sensors for monitoring the tension and wear of the contact network.
[0087] Optimize the layout of sensors and distribute them reasonably according to the fault-prone points and key operating parts of the equipment to ensure that the operating status information of the equipment can be fully and accurately obtained. For example, install temperature and vibration sensors on the stator windings and bearings of the traction motor to achieve all-round monitoring of the motor's operating status.
[0088] Establish efficient data transmission channels:
[0089] Utilize the existing communication network of rail vehicles (such as LTE-R or 5G network) and adopt a dedicated data transmission protocol to ensure the priority transmission of equipment status data. For example, set a higher transmission priority for equipment status data to ensure that the data can be transmitted to the central control center (CCC) in a timely and stable manner.
[0090] Compress and encrypt data to improve data transmission efficiency and ensure data security without affecting data accuracy. Use advanced compression algorithms, such as the improved version of LZ77 or LZ78 in lossless compression algorithms, to increase data compression rate to more than 50% and reduce data transmission volume. At the same time, use encryption algorithms such as AES (Advanced Encryption Standard) to encrypt data to prevent data from being stolen or tampered with during transmission.
[0091] Fault diagnosis and early warning mechanism optimization
[0092] Intelligent fault diagnosis algorithm:
[0093] Introduce fault diagnosis algorithms based on artificial intelligence and machine learning, such as artificial neural networks (ANN) and support vector machines (SVM). Use a large amount of historical equipment operation data and fault cases as training samples to train fault diagnosis models. For example, for fault diagnosis of the traction system, the current, voltage, temperature, vibration and other data of the traction motor are used as input features. The trained neural network model can accurately determine whether there is a fault in the traction system and further determine the type of fault (such as motor winding short circuit, bearing wear, etc.).
[0094] The fault tree analysis (FTA) method is used to construct a logical model of equipment failure. Starting from the equipment failure phenomenon, the various possible causes of the failure and their interrelationships are gradually analyzed to form a fault tree. For example, for a door system failure, the top event is the failure of the door to close normally. The possible causes analyzed include door lock failure, drive motor failure, sensor failure, control circuit failure, etc. Through the analysis of the fault tree, the root cause of the failure can be quickly located, improving the efficiency and accuracy of fault diagnosis.
[0095] Hierarchical early warning system:
[0096] According to the severity of the fault and the degree of impact on the safety of train operation, a graded warning mechanism is established. For example, the warning level is divided into three levels: the first-level warning indicates that the equipment has a slight abnormality, but it does not affect the normal operation of the train for the time being, such as a slight deviation in the measurement value of a sensor. At this time, the system will issue a warning message to notify maintenance personnel to pay attention and further check; the second-level warning indicates that the equipment failure may affect the performance or comfort of the train, such as a slight drop in the pressure of the braking system, and maintenance personnel need to arrange maintenance in the near future; the third-level warning indicates that the equipment failure seriously threatens the safety of train operation, such as the traction motor temperature is too high and close to the dangerous value. At this time, the system will immediately take corresponding safety measures (such as automatically limiting the train speed or triggering emergency braking), and send an emergency alarm message to the CCC and maintenance personnel, requiring immediate repairs.
[0097] Maintenance planning and resource management optimization
[0098] Dynamic maintenance plan generation:
[0099] Based on the real-time operating status of the equipment, historical fault data and the predicted remaining service life of the equipment, CCC's equipment status monitoring and maintenance module automatically generates a dynamic maintenance plan. For example, for equipment that often fails or is near the end of its service life, the maintenance cycle can be appropriately shortened; while for equipment in good operating condition, the maintenance cycle can be appropriately extended.
[0100] In combination with the train operation plan, the maintenance time should be reasonably arranged to minimize the impact on normal operation. For example, the equipment maintenance and inspection work can be carried out during the non-operating time of the train (such as nighttime suspension time or off-peak operation time) to ensure that the train can operate normally during the peak operation period during the day.
[0101] Maintenance Resource Management:
[0102] Establish a maintenance resource database, including maintenance personnel information (such as name, skill level, work experience, types of equipment they are good at repairing, etc.), maintenance tool and equipment information (such as tool type, quantity, storage location, equipment model, technical parameters, etc.) and maintenance spare parts inventory information (such as spare parts type, quantity, supplier information, inventory location, etc.).
[0103] According to the maintenance plan, the required maintenance resources are automatically matched and resource allocation is done in advance. For example, when it is determined that the brake system of a train needs maintenance, the system selects maintenance personnel with corresponding skills, required maintenance tools and spare parts from the maintenance resource database according to the fault type and maintenance requirements, and generates a resource allocation list to notify relevant personnel and departments to prepare. At the same time, the use of maintenance resources is tracked in real time, and inventory information is updated in a timely manner. When the spare parts inventory is lower than the warning value, a purchase order is automatically generated to ensure the timely supply of maintenance spare parts.
[0104] Remote maintenance and collaboration function optimization
[0105] Remote diagnosis and control functions:
[0106] Maintenance personnel can connect to the control system of rail vehicles through remote terminals (such as computers or mobile devices), obtain real-time equipment operating status data, and conduct remote fault diagnosis. For example, during the operation of a train, if an equipment abnormality occurs, maintenance personnel can use diagnostic software in the remote monitoring room of the CCC or the depot to remotely detect and analyze the on-board equipment to determine the cause of the fault and the solution.
[0107] In some cases, such as adjusting equipment parameters or repairing simple faults, maintenance personnel can operate the equipment through the remote control system. For example, for the parameter settings of some electrical equipment, they can remotely log in to the control interface of the equipment to modify it without having to go on board for on-site operation, which improves maintenance efficiency and reduces the impact on train operations.
[0108] Maintenance collaboration platform:
[0109] Establish a maintenance collaboration platform for maintenance personnel from different departments (such as vehicle maintenance department, rail infrastructure maintenance department, technical support department, etc.) to share information and collaborate. The platform can publish equipment failure information, maintenance progress, maintenance plan and other content, so that relevant personnel can understand the situation in a timely manner.
[0110] Supporting online discussion and video conferencing functions, when encountering complex faults or problems that require collaboration among multiple departments, maintenance personnel can communicate and exchange ideas in real time through the platform, share maintenance experience and technical information, and jointly develop solutions. For example, when a train operation fault involves both vehicle and track infrastructure problems, vehicle maintenance personnel and track maintenance personnel can communicate face-to-face through video conferencing, jointly analyze the cause of the fault, and improve the speed and quality of fault resolution.
[0111] Through the above detailed optimization of the equipment status monitoring and maintenance module, the management level of the regional intercity transportation rail vehicle control system can be significantly improved, equipment failures can be discovered and handled in a timely manner, the safe and reliable operation of rail vehicles can be ensured, the operation and maintenance costs can be reduced, and the operation efficiency can be improved.
[0112] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A rail vehicle control system for regional intercity transportation, characterized in that: include: Central Control Center: Responsible for the overall dispatching and monitoring of intercity rail vehicle operations in the entire region. Receive information from various stations, vehicles, meteorological monitoring systems, and power supply systems; Automatic train control system: installed on each rail vehicle, including automatic train control, automatic train protection and automatic train monitoring subsystems; Station control system: deployed in each station, mainly responsible for the control of train entry and exit, platform screen door control and information interaction with passengers; Communication network system: A combination of wired and wireless communication is used to realize the central control center, train automatic control system and communication network system, and the stable communication between the train and the ground control system during high-speed operation; Operation plan management module: formulate long-term and short-term train operation plans in advance based on historical passenger flow data and activity arrangements in the area; Train location and speed monitoring module: accurately obtain the train location and speed information, and conduct train dispatching and station operation management; Safety protection module: Based on the train's position, speed, speed limit information of the track line, and signal system status, a safety protection model is established to continuously calculate the train's safe operation envelope. If the train's operating status exceeds the safety envelope, emergency braking is immediately triggered. At the same time, communication is carried out with the automatic monitoring system of adjacent trains to achieve safe interval control between trains and prevent train rear-end collisions. Equipment status monitoring and maintenance module: Real-time monitoring of various equipment on rail vehicles, such as traction systems, braking systems, door systems, on-board communication equipment, and track infrastructure along the line, such as track circuits, signal machines, and power supply systems. The operating status information of the equipment, such as temperature, pressure, current, and voltage, is transmitted to the central control center. If equipment failure or abnormality is detected, an alarm is issued in a timely manner, and fault diagnosis information and maintenance suggestions are provided to maintenance personnel. At the same time, a reasonable equipment maintenance plan is formulated based on the equipment usage and maintenance records, and preventive maintenance work is arranged in advance.
2. A rail vehicle control system for regional intercity transportation according to claim 1, characterized in that: The equipment status monitoring and maintenance module adopts a high-precision and high-reliability sensor network. The key equipment of the rail vehicle, such as the traction motor, the braking system, and the electrical control system, deploys various types of sensors, including temperature sensors, which use high-precision thermistors or thermocouples to accurately measure the temperature changes of key parts of the equipment with an accuracy of ±0.5°C, pressure sensors to measure the pressure of the hydraulic or pneumatic system, vibration sensors, and current and voltage sensors; In terms of track infrastructure along the line, current sensors and signal quality monitoring sensors are installed in the track circuit to monitor the current changes and signal transmission quality of the track circuit; status monitoring sensors are installed on the signal machines, including the brightness monitoring of the signal lights and the position monitoring of the signal conversion mechanism; In the power supply system, oil temperature, oil pressure, and insulation resistance monitoring sensors are installed on the transformers and switch cabinet equipment of the substation, as well as sensors for monitoring the tension and wear of the contact network.
3. A rail vehicle control system for regional intercity transportation according to claim 2, characterized in that: The equipment status monitoring and maintenance module adopts an efficient data transmission channel, utilizes the existing communication network of the rail vehicle, adopts a dedicated data transmission protocol, sets a higher transmission priority for the equipment status data, compresses and encrypts the data, adopts advanced LZ77 or LZ78 compression algorithms, increases the data compression rate to more than 50%, and adopts encryption algorithms such as AES to encrypt the data to prevent the data from being stolen or tampered with during transmission.
4. A rail vehicle control system for regional intercity transportation according to claim 3, characterized in that: The equipment status monitoring and maintenance module includes fault diagnosis and early warning mechanism optimization, introduces a fault diagnosis algorithm based on artificial intelligence and machine learning, and uses a large amount of historical equipment operation data and fault cases as training samples to train the fault diagnosis model.
5. A rail vehicle control system for regional intercity transportation according to claim 4, characterized in that: The equipment status monitoring and maintenance module includes a graded warning system, which establishes a graded warning mechanism according to the severity of the fault and the impact on the safety of train operation.
6. A rail vehicle control system for regional intercity transportation according to claim 5, characterized in that: The equipment status monitoring and maintenance module includes maintenance planning and resource management optimization, dynamic maintenance plan generation, based on the real-time operating status of the equipment, historical fault data and predicted remaining service life of the equipment.
7. A rail vehicle control system for regional intercity transportation according to claim 6, characterized in that: The maintenance plan and resource management optimization includes maintenance resource management, establishing a maintenance resource database, including maintenance personnel information, maintenance tools and equipment information, automatically matching the required maintenance resources according to the maintenance plan, and making resource allocation work in advance.
8. A rail vehicle control system for regional intercity transportation according to claim 7, characterized in that: The equipment status monitoring and maintenance module includes remote maintenance and collaboration function optimization. Maintenance personnel connect to the control system of the rail vehicle through a remote terminal to obtain the equipment's operating status data in real time and perform remote fault diagnosis.
9. A rail vehicle control system for regional intercity transportation according to claim 8, characterized in that: The remote maintenance and collaboration function optimization includes a maintenance collaboration platform, which establishes a maintenance collaboration platform for maintenance personnel from different departments to share information and collaborate.