A low vacuum maglev train operation control system

Abstract

The present invention discloses a low-vacuum maglev train operation control system. The system includes a central operation control system, a zonal operation control system, a local control system, a vacuum pipeline device, a speed measurement and positioning system, and a traction operation control system; the local control system is connected to the vacuum pipeline device; the central operation control system is used to cancel the route handling of the abnormal air pressure area if it is determined that there is an abnormal air pressure area in the direction of the train's travel, and the train can stop outside the abnormal air pressure area, and send a closing command for the entry side gate valve of the abnormal air pressure area to the zonal operation control system; the zonal operation control system is used to close the entry side gate valve of the abnormal air pressure area through the local control system; the train's achievable end point is determined according to the end point of the area where the route has been handled, and the movement authorization and protection curve are calculated, and the train is controlled to stop outside the abnormal air pressure area through the traction operation control system. The embodiment of the present invention can ensure the safe operation of the train under various abnormal working conditions.

Description

Technical Field

[0001] The invention relates to the technical field of low-vacuum maglev trains, and in particular to a low-vacuum maglev train operation control system. Background Art

[0002] In the rail transit industry, train speed is one of the most important technical indicators. However, due to factors such as air resistance, wheel-rail adhesion, serpentine instability, operating noise, and bow-net current, it will be difficult for traditional wheel-rail transportation to break the speed limit of 500km / h. High-speed magnetic levitation technology can effectively solve the problem of wheel-rail adhesion, but with the substantial increase in operating speed, problems such as train aerodynamic resistance, crosswind instability, and aerodynamic noise will become particularly prominent, making it difficult to meet the requirements of operational economy and environmental protection. The low-vacuum pipeline high-speed magnetic levitation system refers to creating a low-pressure environment in the pipeline. The train runs at high speed in the low-pressure pipeline, which can effectively reduce the running resistance of the train and isolate the noise propagation inside and outside the pipeline.

[0003] The existing technology is only aimed at the research and development, manufacturing and engineering design of vacuum pipeline equipment. How to achieve automated control of low-vacuum high-speed maglev trains and ensure driving safety has become an urgent problem that needs to be solved. Summary of the invention

[0004] The invention provides a low vacuum maglev train operation control system to solve the problem of safe and reliable automatic control of low vacuum high-speed maglev trains.

[0005] According to one aspect of the present invention, a low vacuum maglev train operation control system is provided, the system comprising: a central operation control system, a zone operation control system, a local control system, a vacuum pipeline equipment, a speed measurement and positioning system and a traction operation control system;

[0006] The on-site control system is connected to the vacuum pipeline equipment and is used to collect pipeline environment data of the vacuum pipeline equipment;

[0007] The central operation control system is used for canceling the route handling of the abnormal air pressure area if it is determined based on the positioning data of the speed measurement and positioning system and the pipeline environment data that there is an abnormal air pressure area in the direction of the train travel, and the train can stop outside the abnormal air pressure area, and sending a closing command of the inlet side gate valve of the abnormal air pressure area to the zone operation control system;

[0008] The zoning operation control system is used to send the entry-side gate valve closing command to the local control system to close the entry-side gate valve in the area of ​​abnormal air pressure through the local control system; determine the reachable end of the train according to the area end of the processed route, and calculate the movement authorization and protection curve according to the reachable end, and send the calculated movement authorization and protection curve to the traction operation control system, so as to control the train to stop outside the area of ​​abnormal air pressure through the traction operation control system.

[0009] The embodiment of the present invention realizes linkage control of trains and vacuum pipeline equipment through a central operation control system, a zoned operation control system and a local control system, ensuring that the train maintains a safe and stable operating state under various abnormal working conditions. By monitoring the vacuum pipeline equipment and the pipeline environment, abnormalities of the equipment and environment can be discovered in time, and faults can be handled in time to avoid further expansion of the impact of the fault, thereby ensuring the safe operation of the train.

[0010] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 It is a first structural schematic diagram of a low-vacuum maglev train operation control system provided by an embodiment of the present invention.

[0013] Figure 2 It is a schematic diagram of a low vacuum magnetic levitation pipeline provided by an embodiment of the present invention.

[0014] Figure 3 It is a control flow diagram of a central operation and control system provided by an embodiment of the present invention.

[0015] Figure 4 It is a second structural schematic diagram of the low-vacuum maglev train operation control system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 should fall within the scope of protection of the present invention.

[0017] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0018] Figure 1 1 is a first structural diagram of a low vacuum maglev train operation control system provided by an embodiment of the present invention. Figure 1 As shown, the low vacuum maglev train operation control system includes: a central operation control system, a zoned operation control system, a local control system, a vacuum pipeline equipment, a speed measurement and positioning system, and a traction operation control system. The local control system is connected to the vacuum pipeline equipment and is used to collect pipeline environmental data of the vacuum pipeline equipment. The low vacuum pipeline equipment includes a gate valve. Figure 2 is a schematic diagram of a low vacuum magnetic levitation pipeline provided by an embodiment of the present invention, with reference to Figure 2 The gate valve is used to construct a closed section of a specific length to divide the vacuum pipeline into multiple areas, including garages, switch rails, stations, and inter-station sections. Stations and inter-station sections can be called mainline areas; illustratively, gate valves A, gate valves B, and gate valves C divide the switch rail area and inter-station section 1. If the electronic map is defined as upward from left to right, when the train is going up, gate valve A is the inlet gate valve of the switch rail area, gate valve B is the outlet gate valve of the switch rail area, and gate valve B is also used as the inlet gate valve of inter-station section 1.

[0019] The local control system is connected to the zoning operation control system and the vacuum pipeline equipment respectively. The local control system receives the control command of the zoning operation control system and performs local control on the vacuum pipeline equipment, and a display and control terminal can be provided for receiving local control instructions. By connecting the local control system to the vacuum pipeline equipment, a large number of vacuum pipeline equipment are controlled, and there is no need for the zoning operation control system to directly control the vacuum pipeline equipment, so that the zoning control system can better realize the coordinated control between the train and the vacuum pipeline equipment during the train running process, and realize the safe automatic control of the low-vacuum maglev train operation.

[0020] The local control system is used for collecting pipeline environment data of vacuum pipeline equipment. The pipeline environment data of vacuum pipeline equipment is acquired by the sensor device in the pipeline of vacuum pipeline equipment, mainly including temperature, humidity, pressure, stress, noise and other data. The local control system sends the pipeline environment data of vacuum pipeline equipment to the central operation control system through Ethernet communication, or forwards it to the central operation control system by the partition operation control system.

[0021] The central operation control system is used for canceling the route handling of the abnormal air pressure area if it is determined based on the positioning data of the speed measurement and positioning system and the pipeline environment data that there is an abnormal air pressure area in the direction of the train travel, and the train can stop outside the abnormal air pressure area, and sending a closing command of the inlet side gate valve of the abnormal air pressure area to the zone operation control system;

[0022] Specifically, the central operation control system is used to obtain the pipeline environment data from the local control system and obtain the vehicle positioning data from the speed measurement and positioning system. When it is determined that there is an abnormal air pressure area based on the pipeline environment data, the central operation control system determines whether the train will pass through the abnormal air pressure area based on the train operation plan, the current position of the train and the position of the abnormal air pressure area. If the train will pass through the abnormal air pressure area according to the train operation plan, it is determined whether the train can stop outside the abnormal air pressure area in time. If the train can stop outside the abnormal air pressure area, the route processing of the abnormal air pressure area is cancelled, the train is not allowed to enter the abnormal air pressure area, and a closing command of the inlet gate valve of the abnormal air pressure area is sent to the zone operation control system.

[0023] The zoning operation control system is used to send the entry-side gate valve closing command to the local control system to close the entry-side gate valve in the area of ​​abnormal air pressure through the local control system; determine the reachable end of the train according to the area end of the processed route, and calculate the movement authorization and protection curve according to the reachable end, and send the calculated movement authorization and protection curve to the traction operation control system, so as to control the train to stop outside the area of ​​abnormal air pressure through the traction operation control system.

[0024] Specifically, the zonal operation control system receives the closing command of the gate valve on the inlet side of the abnormal air pressure area sent by the central operation control system, and forwards it to the local control system, and closes the gate valve on the inlet side of the abnormal air pressure area through the local control system. The zonal operation control system is also used to store the access status of each train in each area of ​​the vacuum pipeline; the zonal operation control system sets the access status of the abnormal air pressure area of ​​the current train to "non", indicating that the current train has not processed the access to the abnormal air pressure area; the zonal operation control system determines the end point that the current train can reach based on the end point of the area that has processed the access, and calculates the movement authorization and protection curve based on the end point that the current train can reach, and sends the calculated movement authorization and protection curve to the traction operation control system, and controls the current train to stop outside the abnormal air pressure area through the traction operation control system. Among them, the movement authorization means that the train is authorized to enter and pass through a specific track section according to a given running direction. The protection curve, also known as the speed-distance curve, is a curve that shows the relationship between the speed and running distance of a train during its movement. It indicates the maximum operating speed allowed for the train at a certain position. Once the actual operating speed of the train exceeds the speed value on the curve, the traction control system will trigger protection measures such as deceleration or emergency braking.

[0025] The technical solution of the embodiment of the present invention realizes the linkage control of the train and the vacuum pipeline equipment through the central operation control system, the zoning operation control system and the on-site control system. By monitoring the pipeline environment, it is possible to detect environmental abnormalities in a timely manner, handle faults in a timely manner, avoid further expansion of the fault impact, and ensure the safe operation of the train. When it is ensured that there is an abnormal air pressure area in the direction of the train's travel and the train can stop outside the abnormal air pressure area, the route processing of the abnormal air pressure area is cancelled in time, the route status of the current train in the abnormal air pressure area is updated, and the train is not allowed to enter the abnormal air pressure area; and the end point that the current train can reach is determined according to the end point of the area where the route has been processed, and the movement authorization and protection curve are calculated according to the end point that the current train can reach, and the calculated movement authorization and protection curve are sent to the traction operation control system, and the current train is controlled to stop outside the abnormal air pressure area through the traction operation control system. It can effectively prevent trains from mistakenly entering dangerous areas such as abnormal air pressure, thereby avoiding possible safety accidents. The setting of the protection curve enables the train to automatically slow down or stop when approaching potential dangerous areas, increasing the system's safety redundancy and protection level; reducing dependence on manual operations, reducing errors and delays caused by human factors, and improving operational stability and reliability.

[0026] On the basis of the above embodiments, this embodiment further provides a new low-vacuum maglev train operation control system. In this embodiment, the low-vacuum maglev train operation control system includes a central operation control system, a zoned operation control system, a local control system, a vacuum pipeline equipment, a speed measurement and positioning system, and a traction operation control system; the local control system is connected to the vacuum pipeline equipment and is used to collect pipeline environment data of the vacuum pipeline equipment.

[0027] Figure 3 Schematic diagram of a control flow of a central operation and control system provided by an embodiment of the present invention. Figure 3 As shown, when a pipeline air pressure abnormality fault operating condition occurs, the central operation control system is used to cancel the route processing of the air pressure abnormality area if it is judged that there is an air pressure abnormality area in the direction of train travel based on the positioning data of the speed measurement and positioning system and the pipeline environmental data, and the train can stop outside the air pressure abnormality area, and send a closing command of the inlet side gate valve of the air pressure abnormality area to the zone operation control system.

[0028] In some embodiments, the central operation control system is also specifically used to: determine whether there is an abnormal air pressure area based on the pipeline environmental data; if there is an abnormal air pressure area, obtain the approach section of the abnormal air pressure area, and determine whether the train enters the approach section based on the positioning data of the speed measurement and positioning system; if the train does not enter the approach section, determine that the train can stop outside the abnormal air pressure area.

[0029] Specifically, the length of the approach section is determined based on the maximum speed of the train, the braking acceleration, the safety margin, and the air pressure in the vacuum pipeline. The length of the approach section is regularly checked and adjusted based on the train performance data and the pipeline environment data. An approach section is set for each area of ​​the vacuum pipeline to ensure that the train can stop outside the corresponding area in time before passing through the approach section. When the central operation control system determines that there is an abnormal air pressure area in the vacuum pipeline based on the pipeline environment data collected by the local control system, it obtains the approach section of the abnormal air pressure area and determines whether the current train enters the approach section based on the positioning data of the speed measurement and positioning system. If the train does not enter the approach section, it is determined that the train can stop outside the abnormal air pressure area.

[0030] The zoning operation control system is used to send the entry-side gate valve closing command to the local control system to close the entry-side gate valve in the area of ​​abnormal air pressure through the local control system; determine the reachable end of the train according to the area end of the processed route, and calculate the movement authorization and protection curve according to the reachable end, and send the calculated movement authorization and protection curve to the traction operation control system, so as to control the train to stop outside the area of ​​abnormal air pressure through the traction operation control system.

[0031] By pre-setting the approach sections of each area, when an abnormal air pressure condition occurs in the pipeline, the central operation control system can quickly determine whether the train can stop outside the abnormal air pressure area, and then quickly take measures based on the judgment result to prevent trains far away from the abnormal air pressure area from continuing to enter the abnormal air pressure area, so as to facilitate timely fault handling in the abnormal air pressure area, avoid further expansion of the fault impact, and ensure the safe operation of the train.

[0032] Optionally, if there is an area of ​​abnormal air pressure and the train has entered the approach section or the area of ​​abnormal air pressure, the central operation control system is also used to determine the train speed based on the pipeline air pressure in the area of ​​abnormal air pressure, and issue a speed limit command to the sub-area operation control system to ensure that the train passes through the area of ​​abnormal air pressure at a low speed.

[0033] Specifically, if there is an abnormal air pressure area, and the train has entered the approach section or the train has entered the abnormal air pressure area, the central operation control system is used to determine the train speed corresponding to the pipeline air pressure in the abnormal air pressure area according to the hierarchical correspondence between the pipeline air pressure value and the temporary speed limit value, and send a speed limit command to the sub-area operation control system to ensure that the train passes through the abnormal air pressure area at a low speed. The hierarchical correspondence between the pipeline air pressure value and the temporary speed limit value is pre-stored in the central operation control system, and the higher the pipeline air pressure, the lower the corresponding speed limit value.

[0034] If there is an abnormal air pressure area and the central operation control system determines that the train cannot stop outside the abnormal air pressure area, the train speed will be determined according to the pipeline air pressure in the abnormal air pressure area to control the train to pass through the abnormal air pressure area in a safe speed and in a timely manner to avoid the risk of collision when the train travels from a low pressure area to a high pressure area at high speed.

[0035] If there is an area of ​​abnormal air pressure, and the speed measurement and positioning system determines that the train stops at the entry station of the area of ​​abnormal air pressure, the central transportation control system is also used to stop the train and delay the departure route.

[0036] If there is an area of ​​abnormal air pressure, and the train happens to stop at the entrance station of the area of ​​abnormal air pressure, the central operation control system is also used to stop the train and delay the departure route to prevent the vehicle from entering the area of ​​abnormal air pressure, so as to facilitate timely fault handling in the area of ​​abnormal air pressure, avoid further expansion of the fault impact, and ensure the safe operation of the train.

[0037] The technical solution of the embodiment of the present invention realizes the linkage control of the train and the vacuum pipeline equipment through the central operation control system, the partition operation control system and the local control system, monitors the pipeline environment, can timely discover environmental abnormalities, timely handle faults, avoid further expansion of the fault impact, and ensure the safe operation of the train. By presetting the approach sections of each area, when the pipeline air pressure abnormality occurs, the central operation control system can quickly determine whether the train can stop outside the air pressure abnormality area, so as to quickly make a disposal according to the judgment result, and avoid the train far away from the air pressure abnormality area from continuing to enter the air pressure abnormality area, so as to facilitate timely fault handling of the air pressure abnormality area, avoid further expansion of the fault impact, and ensure the safe operation of the train. If there is an air pressure abnormality area and the central operation control system determines that the train cannot stop outside the air pressure abnormality area, the train speed is determined according to the pipeline air pressure in the air pressure abnormality area, so as to control the train to pass through the air pressure abnormality area in time at a safe speed, and avoid the danger of collision when the train enters the high pressure area from the low pressure area at high speed. When there is an abnormal air pressure area and the train happens to stop at the entrance station of the abnormal air pressure area, the central operation control system is also used to stop the train and delay the departure route to prevent the vehicle from entering the abnormal air pressure area, so as to facilitate timely fault handling in the abnormal air pressure area, avoid further expansion of the fault impact, and ensure the safe operation of the train.

[0038] On the basis of the above embodiments, this embodiment further provides a new low-vacuum maglev train operation control system. In this embodiment, the low-vacuum maglev train operation control system includes a central operation control system, a zoned operation control system, a local control system, a vacuum pipeline equipment, a speed measurement and positioning system, and a traction operation control system; the local control system is connected to the vacuum pipeline equipment and is used to collect pipeline environment data of the vacuum pipeline equipment.

[0039] When an abnormal air pressure condition occurs in the pipeline, the central operation control system is used to cancel the route processing of the abnormal air pressure area if it is determined that there is an abnormal air pressure area in the direction of the train's travel based on the positioning data of the speed measurement and positioning system and the pipeline environmental data, and the train can stop outside the abnormal air pressure area, and send a closing command for the inlet side gate valve of the abnormal air pressure area to the zoned operation control system.

[0040] The zoning operation control system is used to send the entry-side gate valve closing command to the local control system to close the entry-side gate valve in the area of ​​abnormal air pressure through the local control system; determine the reachable end of the train according to the area end of the processed route, and calculate the movement authorization and protection curve according to the reachable end, and send the calculated movement authorization and protection curve to the traction operation control system, so as to control the train to stop outside the area of ​​abnormal air pressure through the traction operation control system.

[0041] The on-site control system is also used for collecting the operation data of vacuum pipeline equipment. The operation conditions of the low-vacuum maglev train also include the power failure of the gate valve. The central operation control system is used to send an access processing command to the partition operation control system if there is no abnormal air pressure area in the direction of the train's travel; the partition operation control system is used to reply to the central operation control system that the access processing failed in the case of a gate valve power failure, and determine the train's reachable end point based on the end point of the area where the route has been processed, calculate the protection curve based on the reachable end point and send the calculated protection curve to the traction operation control system, and control the train to stop before the faulty gate valve through the traction operation control system; the central operation control system is also used for gate valve power failure alarm reminder.

[0042] Specifically, if there is no area with abnormal air pressure in the direction of the train's travel, the central operation control system is used to send an entry handling command for an adjacent area in the direction of the train's travel to the sub-area operation control system. The sub-area operation control system is used to receive the entry handling command and perform an interlocking logic check on the entry handling command, and send a gate valve control command to the local control system after passing the interlocking logic check of the entry handling command. The local control system is used to execute the inlet gate valve opening action and the outlet gate valve closing action of the adjacent area in the direction of the train's travel according to the gate valve control command. If the gate valve power fails, the inlet gate valve opening action and / or the outlet gate valve closing action fail to execute, and a gate valve failure alarm information is sent to the sub-area operation control system. Optionally, the gate valve power failure includes gate valve opening and closing failures, such as the gate valve not responding, the gate valve opening and closing system suddenly shuts down during operation, etc.

[0043] The zoned operation control system uses the gate valve in place and locked state as the inspection condition for successful access processing. Figure 2 As shown, if the electronic map is defined as upward from left to right, taking station A as an example, the upward train receiving route has the gate valve C open and the gate valve D closed as the inspection condition for the successful handling of the train receiving route, and the upward train departure route has the gate valve D open and the gate valve E closed as the inspection condition for the successful handling of the departure route; the downward train receiving route has the gate valve D open and the gate valve C closed as the inspection condition for the successful handling of the train receiving route, and the downward train departure route has the gate valve C open and the gate valve B closed as the inspection condition for the successful handling of the departure route. When the gate valve power failure alarm information is received, the central operation control system is replied that the route handling failed, and the train's reachable end is determined according to the regional end of the route that has been handled, and the protection curve is calculated according to the reachable end and the calculated protection curve is sent to the traction operation control system, and the train is controlled to stop before the faulty gate valve through the traction operation control system.

[0044] The central operation and control system is also used for the gate valve power failure alarm reminder, and the alarm reminder contains key information such as the fault type, fault location, and fault time.

[0045] The train safety is ensured by not allowing the train to enter the route when the gate valve power failure occurs. At the same time, the central operation control system is also used for gate valve power failure alarm reminder, so that users can quickly locate the fault and take corresponding treatment measures in time.

[0046] Optionally, the operating conditions of the low-vacuum maglev train also include power system failure and suspension system failure. The low-vacuum pipeline equipment also includes a re-pressure valve, an escape door, and a lighting system. The re-pressure valve uses the pressure difference between the inside and outside of the pipeline to achieve rapid air breaking and re-pressure; the escape door is used for passengers in the car to escape from the low-vacuum pipeline to the external ground environment in an emergency; the lighting system is used for conventional and emergency lighting of specific areas in the pipeline.

[0047] The zoning operation control system is used to calculate the minimum operating speed curve when a train has a power system failure or a suspension part failure, and control the faulty train to slide autonomously to the nearest specific parking area through the traction operation control system according to the minimum operating speed curve; the minimum operating speed curve is calculated based on the specific parking area; the central operation control system is used to close the gate valve of the specific parking area, open the re-pressure valve of the specific parking area, and open the escape door and lighting system of the specific parking area through the on-site control system.

[0048] Specifically, the minimum operating speed curve is determined based on the current position, speed, remaining power, fault type, and the position of the nearest specific parking area of ​​the train. In the calculation process, multiple factors need to be considered, such as the braking performance of the train, track conditions, slope, curves, etc., to ensure that the train can safely decelerate and glide to the specific parking area. The specific parking area is pre-set to provide a safe parking environment when a train fails. After the train successfully slides to the specific parking area, the central operation control system will close the gate valve of the specific parking area, open the re-pressure valve of the specific parking area, and open the escape door and lighting system of the specific parking area through the local control system to ensure that passengers are quickly transferred to the external environment. When the power system of the train fails or the suspension part fails, the zoning operation control system calculates the minimum operating speed curve and controls the train to autonomously glide to the nearest specific parking area, providing a strong guarantee for the safe operation of the train.

[0049] Optionally, the operating conditions of the low vacuum maglev train also include fire. The partitioned operation control system is also used to stop the traction operation control system when the suspension fails completely or there is a fire.

[0050] In the event of an emergency operation such as complete suspension failure or fire, the zoning operation control system is used to immediately stop the traction operation control system and quickly cut off the power output of the train to ensure that the train does not accelerate or maintains the current speed. This prevents the train from continuing to run after losing its suspension ability, which may lead to serious consequences such as friction between the car body and the track and loss of control of the train; prevents the fire from spreading due to the operation of the train; conducts real-time monitoring, emergency response, deceleration and parking, emergency evacuation, etc., and builds an important safety line of the train operation control system.

[0051] The technical solution of the embodiment of the present invention realizes the linkage control of the train and the vacuum pipeline equipment through the central operation control system, the zoned operation control system and the local control system, ensuring that the train maintains a safe and stable operation state under various abnormal working conditions. By monitoring the vacuum pipeline equipment and the pipeline environment, it is possible to timely discover equipment and environmental abnormalities, handle faults in a timely manner, avoid further expansion of the fault impact, and ensure the safe operation of the train.

[0052] On the basis of the above embodiments, this embodiment further provides a new low vacuum maglev train operation control system. In this embodiment, the low vacuum maglev train operation control system includes a central operation control system, a zoned operation control system, a local control system, a vacuum pipeline equipment, a speed measurement and positioning system, and a traction operation control system. The local control system is connected to the vacuum pipeline equipment and is used to collect pipeline environment data of the vacuum pipeline equipment.

[0053] The central operation control system is used to cancel the entry processing of the abnormal air pressure area if it is judged that there is an abnormal air pressure area in the direction of the train's travel based on the positioning data of the speed measurement and positioning system and the pipeline environment data, and the train can stop outside the abnormal air pressure area, and send a closing command for the inlet side gate valve of the abnormal air pressure area to the zoned operation control system.

[0054] The zoning operation control system is used to send the entry-side gate valve closing command to the local control system to close the entry-side gate valve in the area of ​​abnormal air pressure through the local control system; determine the reachable end of the train according to the area end of the processed route, and calculate the movement authorization and protection curve according to the reachable end, and send the calculated movement authorization and protection curve to the traction operation control system, so as to control the train to stop outside the area of ​​abnormal air pressure through the traction operation control system.

[0055] The central operation control system is used to send a target area route processing command to the sub-area operation control system; specifically, when there is no abnormal air pressure area in the direction of train travel, the central operation control system can set the adjacent area of ​​the area where the train is located in the direction of train travel as the target area according to the train operation plan and the current position of the train, and process the target area route for the train so that the train can obtain the authority to pass through the target area.

[0056] The zoned operation control system is used to perform an interlocking logic check on the target area access processing command, and if the check passes, a gate valve control command is sent to the local control system.

[0057] The zoning control system is specifically used to determine the route status of the target area, and to perform an interlocking logic check according to the route status of the target area. For example, when the target area is in the route status of other trains or the target area has an abnormal air pressure or a gate valve power failure occurs in the target area, the interlocking logic check of the target area route processing command fails, and the target area route cannot be processed. When the target area is in normal working condition and the target area is not in the route status of other trains, the interlocking logic check of the target area route processing command passes, and a gate valve control command is sent to the local control system.

[0058] The on-site control system is used to control the vacuum pipeline equipment to open the gate valve on the inlet side of the target area and close the gate valve on the outlet side of the target area according to the gate valve control command. After detecting that the gate valve is in place and locked, it replies to the zone operation control system that the access to the target area has been successfully processed; the zone operation control system is also used to modify the access status of the target area.

[0059] The zoning operation control system is specifically used to modify the route status of the current train in the target area after the route access to the target area is successfully processed, so as to obtain the route access authority of the target area.

[0060] The central operation control system is used to send a target area entry gate valve closing command to the sub-area operation control system after the speed measurement and positioning system detects that the train position envelope has completely entered the target area. The sub-area operation control system is used to close the target area entry gate valve through the local control system, and after detecting that the target area entry gate valve is closed and locked, modify the route status of the adjacent area that the current train has completed passing before the target area, so as to release the route authority of the adjacent area that has completed passing before the target area.

[0061] By using the zoning operation control system to perform an interlocking logic check on the target area route processing command, it is ensured that an area can only be occupied by one train at any time, thereby effectively preventing the occurrence of traffic conflicts, greatly improving the safety and reliability of train operation, reducing the risk of human errors and accidents, and ensuring train driving safety.

[0062] Figure 4 2 is a second structural diagram of a low vacuum maglev train operation control system provided by an embodiment of the present invention. Figure 4, the low vacuum pipeline equipment also includes a vacuum pump group and a docking bridge. The vacuum pump group is used to establish and maintain the low vacuum environment of the pipeline; the docking bridge is used to provide a convenient and reliable docking method. The central operation control system includes a central operation control data server, a central operation control host server, and a central operation control communication server. The central operation control data server obtains the vacuum pipeline equipment operation data and pipeline environment data from the local control system, so as to facilitate rapid response according to the actual status information and fault alarm information of the pipeline equipment; obtains train status data such as train speed and position from the speed measurement and positioning system, monitors the operation of the train in real time according to the train operation plan, and remotely and automatically controls the action of the pipeline equipment to improve the train operation efficiency. The central operation control host server receives data from the central operation control data server in real time, calculates the control suggestions for the pipeline equipment in the current state through the vacuum pipeline equipment control algorithm, and transmits them to the vacuum pipeline equipment control model. The vacuum pipeline equipment control model outputs the pipeline equipment control command to the outside through the central operation control communication server; receives data from the central operation control data server in real time, calculates the scheduling suggestions for the running train in the current state through the train gate valve control algorithm, and transmits them to the train gate valve control model. The train gate valve control model outputs the train operation scheduling command to the outside through the central operation control communication server. The central operation control communication server sends the pipeline equipment control command and the train operation scheduling command to the partition operation control system.

[0063] Continue to refer Figure 2 , the gate valve divides the vacuum pipeline into multiple areas, including garages, transfer rails, stations, and inter-station sections. Stations and inter-station sections can be called mainline areas. Optionally, if the target area is a transfer rail, after the transfer rail route is successfully processed:

[0064] The central operation control system is used to send a closing command of the gate valve on the inlet side of the transfer rail area to the sub-district operation control system after detecting that the train position envelope has completely entered the transfer rail area through the speed measurement and positioning system; after detecting that the gate valve on the inlet side of the transfer rail area is closed and locked through the local control system, the vacuum pump group opening command is sent to the sub-district operation control system; the sub-district operation control system is also used to send the vacuum pump group opening command to the local control system; the local control system is used to control the vacuum pump group in the vacuum pipeline equipment according to the vacuum pump group opening command to establish a low-pressure environment in the transfer rail area.

[0065] refer to Figure 2, the local control system is also used to complete the establishment of the low-pressure environment of the station section 1 in advance before the train leaves the depot to ensure the train departure efficiency. After the central operation control system waits for the low-pressure environment in the transfer rail area to be established, it sends the station section route handling command to the sub-area operation control system. After the sub-area operation control system completes the interlocking logic check of the station section route handling command and the interlocking logic check passes, it sends a gate valve control command to the local control system to open the gate valve B, that is, the gate valve on the exit side of the transfer rail area, that is, the gate valve on the inlet side of the station section 1. After the central operation control system determines that the route handling of the station section 1 has been completed, the gate valve B is opened and locked, and the vacuum pipeline equipment and pipeline environment data are normal, the train departure is completed on time according to the train operation plan.

[0066] By setting up a transfer rail area and isolating the garage and vacuum pipeline, it is easier to maintain the vacuum state of the pipeline, reduce costs and improve train operation efficiency.

[0067] Optionally, if the target area is a station, after the station access is successfully processed: the central operation control system is used to send a station area inlet gate valve closing command to the sub-area operation control system if it detects through the speed measurement and positioning system that the train position envelope has completely entered the station area; the on-site control system is used to close the station area inlet gate valve according to the station area inlet gate valve closing command.

[0068] refer to Figure 2 If the target area is station A, after the local control system is used to close the station A area inlet gate valve C according to the station A area inlet gate valve C closing command, the zoning operation control system modifies the current train approach status in the station interval 1 to release the approach authority of the station interval 1.

[0069] After the train is docked with the connecting bridge, the pipeline air pressure in the station area is monitored at all times and the vacuum pump group in the vacuum pipeline equipment is automatically controlled to maintain the low-pressure state in the station area; the central operation control system is used to control the departure of the train according to the train operation plan and the environmental status of the station area, and send a departure route processing command to the sub-area operation control system; after determining that the train has left the station, the station exit gate valve is controlled to be closed and the low-pressure environment in the station area is maintained through the on-site control system.

[0070] After the train is docked with the connecting bridge, the on-site control system constantly monitors the pipeline air pressure in the station area and automatically controls the vacuum pump group in the vacuum pipeline equipment to maintain a low-pressure state in the station area. This can effectively solve the problem of high operating cost, long time consumption and difficulty in implementation of repeated inflation and deflation of the station area caused by pipeline re-pressurization connection. At the same time, gate valves are arranged on both sides of the station to effectively solve the impact of poor sealing after the train is docked with the connecting bridge on the air pressure in the adjacent area of ​​the station.

[0071] The technical solution of the embodiment of the present invention ensures that an area can only be occupied by one train at any time through the interlocking logic check of the target area route processing command by the zoning operation control system, thereby effectively preventing the occurrence of traffic conflicts, greatly improving the safety and reliability of train operation, reducing the risk of human errors and accidents, and ensuring the safety of train operation. After the train is docked with the docking corridor, the on-site control system constantly monitors the pipeline air pressure in the station area and automatically controls the vacuum pump group in the vacuum pipeline equipment to maintain the low-pressure state of the station area, which can effectively solve the problem of repeated inflation and deflation of the station area caused by the pipeline re-pressure connection, and at the same time, gate valves are set on both sides of the station to effectively solve the impact of poor sealing after the train is docked with the docking corridor on the air pressure of the adjacent area of ​​the station.

[0072] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A low vacuum maglev train operation control system, characterized in that: The low vacuum maglev train operation control system includes a central operation control system, a zone operation control system, a local control system, vacuum pipeline equipment, a speed measurement and positioning system, and a traction operation control system; The on-site control system is connected to the vacuum pipeline equipment and is used to collect pipeline environment data of the vacuum pipeline equipment; The central operation control system is used for canceling the route handling of the abnormal air pressure area if it is determined based on the positioning data of the speed measurement and positioning system and the pipeline environment data that there is an abnormal air pressure area in the direction of the train travel, and the train can stop outside the abnormal air pressure area, and sending a closing command of the inlet side gate valve of the abnormal air pressure area to the zone operation control system; The zoning operation control system is used to send the entry side gate valve closing command to the local control system to close the entry side gate valve in the abnormal air pressure area through the local control system; determine the train reachable end point according to the regional end point of the processed route, calculate the movement authorization and protection curve according to the reachable end point, and send the calculated movement authorization and protection curve to the traction operation control system, and control the train to stop outside the abnormal air pressure area through the traction operation control system; The local control system is connected to the zoned operation and control system, and is used to receive control commands from the zoned operation and control system and perform local control on the vacuum pipeline equipment.

2. The low vacuum maglev train operation control system according to claim 1, characterized in that: The central operation and control system is specifically used for: Determine whether there is an abnormal air pressure area according to the pipeline environment data; if there is an abnormal air pressure area, obtain the approach section of the abnormal air pressure area, and determine whether the train enters the approach section according to the positioning data of the speed measurement and positioning system; If the train does not enter the approach section, it is determined that the train can stop outside the abnormal air pressure area.

3. The low vacuum maglev train operation control system according to claim 2 is characterized in that: If there is an abnormal air pressure area and the train has entered the approach section or the abnormal air pressure area, the central operation control system is also used to determine the train speed according to the pipeline air pressure in the abnormal air pressure area, and send a speed limit command to the sub-area operation control system to ensure that the train passes through the abnormal air pressure area at a low speed.

4. The low vacuum maglev train operation control system according to claim 2, characterized in that: If there is an area of ​​abnormal air pressure, and the speed measurement and positioning system determines that the train stops at the entry station of the area of ​​abnormal air pressure, the central transportation control system is also used to stop the train and delay the departure route.

5. The low vacuum maglev train operation control system according to claim 1, characterized in that: The central operation control system is used to send a route handling command to the sub-area operation control system if there is no abnormal air pressure area in the direction of train travel; The zoning operation control system is used to reply to the central operation control system that the route processing has failed in the event of a gate valve power failure, and determine the reachable end of the train according to the regional end of the processed route, calculate the protection curve according to the reachable end and send the calculated protection curve to the traction operation control system, and control the train to stop before the faulty gate valve through the traction operation control system; The central operation and control system is also used for warning of power failure of the gate valve.

6. The low vacuum maglev train operation control system according to claim 1, characterized in that: The zoning operation control system is used to calculate the minimum operating speed curve when a power system failure or suspension failure occurs in a train, and control the faulty train to autonomously glide to the nearest specific parking area according to the minimum operating speed curve through the traction operation control system; The minimum operating speed curve is calculated according to the specific parking area; The central operation control system is used to close the gate valve of the specific parking area, open the re-pressure valve of the specific parking area, and open the escape door and lighting system of the specific parking area through the local control system.

7. The low vacuum maglev train operation control system according to claim 6, characterized in that: The zoned operation control system is also used to stop the traction operation control system in the event of complete suspension failure or fire.

8. The low vacuum maglev train operation control system according to claim 1, characterized in that: The central operation control system is used to send a target area route handling command to the sub-area operation control system; The zoned operation control system is used to perform an interlocking logic check on the target area route handling command, and if the check passes, a gate valve control command is sent to the local control system; The local control system is used to control the vacuum pipeline equipment to open the gate valve on the inlet side of the target area and close the gate valve on the outlet side of the target area according to the gate valve control command, and after detecting that the gate valve is in place and locked, it replies to the partition operation control system that the access to the target area is successfully processed; The zoned operation control system is also used to modify the route status of the target area.

9. The low vacuum maglev train operation control system according to claim 8, characterized in that: If the target area is a transfer track, after the transfer track route is successfully processed: The central operation control system is used to send a closing command of the gate valve on the inlet side of the transfer rail area to the sub-area operation control system if the speed measurement and positioning system detects that the train position envelope has completely entered the transfer rail area; and send a vacuum pump group opening command to the sub-area operation control system after the local control system detects that the gate valve on the inlet side of the transfer rail area is closed and locked; The partition operation control system is also used to send the vacuum pump group start command to the local control system; The local control system is used to control the vacuum pump group in the vacuum pipeline equipment according to the vacuum pump group start command to establish a low-pressure environment in the conversion rail area.

10. The low vacuum maglev train operation control system according to claim 8, characterized in that: If the target area is a station, after the station access is successfully processed: The central operation control system is used to send a station area inlet side gate valve closing command to the sub-area operation control system if the speed measurement and positioning system detects that the train position envelope has completely entered the station area; The local control system is used to close the station area inlet gate valve according to the station area inlet gate valve closing command; after the train is docked with the connecting bridge, the station area pipeline air pressure is always monitored and the vacuum pump group in the vacuum pipeline equipment is automatically controlled to maintain the low pressure state of the station area; The central operation control system is used to control train departure according to the train operation plan and the environmental status of the station area, and send departure route processing commands to the sub-area operation control system; after determining that the train has left the station, it controls the closure of the station exit gate valve and maintains a low-pressure environment in the station area through the local control system.

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