Method for switching different standard signal systems of rail transit

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By adding a TACS system at the key retracement station of rail transit and switching to the TACS system during retracement, the problem that the TBTC standard cannot improve the capacity due to technical limitations is solved, and the effect of improving the capacity and solving the bottleneck of retracement capacity is achieved while appropriately increasing costs is achieved.

CN119568236APending Publication Date: 2025-03-07SHANGHAI RAIL TRANSIT MAINTENANCE SUPPORT

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Patent Information

Application Number: CN202311155964.9
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2023-09-07
Publication Date: 2025-03-07

AI Technical Summary

Technical Problem

In the existing rail transit signal systems, the TBTC standard cannot improve transportation capacity due to technical limitations, resulting in limited operational capabilities of the backbone line. The upgrade cost of the full line signal system is high, making it difficult to economically improve the transportation capacity of the line.

Method used

The TACS system is added to the key rewind station. The existing TBTC system is used before and after rewind. When rewind, the TACS system is switched to the TACS system, and the signal system is switched through the cooperation of on-board equipment and rail-side control equipment.

Benefits of technology

With the appropriate increase in costs, improve the capacity of existing lines, solve the bottleneck of reversing capabilities, and successfully upgrade to the TACS system after the existing system reaches its service life in the future.

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Abstract

The invention provides a method for switching different system signal systems of rail transit. The method comprises the following steps: defining a second signal system area and a switching area of a first signal system and the second signal system in a line; installing trackside control equipment of the second signal system in the second signal system area, and installing vehicle-mounted equipment of the second signal system on the train; when the train runs to a switching area of the first signal system and the second signal system, the first signal system is switched to the second signal system through cooperation of the vehicle-mounted equipment and the trackside control equipment; the train runs on a preset route by adopting a second signal system; after the train runs on the preset route, the second signal system is switched back to the first signal system through cooperation of the vehicle-mounted equipment and the trackside control equipment, and the train runs through the first signal system.

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Description

Technical Field

[0001] The present invention relates to the technical field of rail transit, and in particular to a method for switching between signal systems of different standards in rail transit. Background Art

[0002] In the current rail transit signal system, a considerable number of subway lines still use the TBTC (Track Circuit Based Train Control) system, which is a train control system based on track circuits. Lines that use this system generally have a long operating life and are urban backbone lines. As the size of cities continues to increase, the requirements for transportation capacity are getting higher and higher. Due to technical limitations, the TBTC system cannot achieve a shorter operating interval, which has put great pressure on the operating capacity of these backbone lines. These lines are usually built in phases. One section of the line has not yet reached the overhaul period, and the other section of the line has completed the original system overhaul. From an economic perspective, it is impossible to immediately improve the line capacity through system upgrades and renovations.

[0003] Common performance improvement and transformation solutions for rail transit signal systems can be divided into: Solution 1, upgrading the entire signal system and retiring the existing TBTC system. Solution 2, retaining the existing system and superimposing a new system on the existing system. However, both solutions involve upgrading the signal system of the entire line, which is costly and wastes existing investments.

[0004] Currently, the bottleneck of rail transit capacity and operating intervals lies mainly in the turnaround capacity, so there is an urgent need to find solutions to increase the capacity of existing lines. Summary of the invention

[0005] The purpose of the present invention is to use the latest generation of train control system TACS (Train Autonomous Circurmambulation System), that is, the train autonomous operation system, to solve the bottleneck of the reversing capacity of the existing line. The present invention only adds the TACS system at the key reversing station, uses the existing TBTC operation before and after the reversal, and switches to TACS operation when reversing. The transportation capacity of the existing line is improved with a moderate increase in cost, and the existing system can be smoothly upgraded to the TACS system in the future when it reaches the service life.

[0006] In order to achieve the above-mentioned object, the present invention provides a method for switching between different signal systems of rail transit, wherein a vehicle-mounted device of a first signal system is installed on a train, the vehicle-mounted device of the first signal system is connected to a vehicle output circuit, a trackside control device of the first signal system is installed on the line, the trackside control device of the first signal system is connected to a ground device, and the train operates by default using the first signal system, and the method for switching between different signal systems of rail transit comprises:

[0007] defining a second signal system area and a first signal system and a second signal system switching area in the line;

[0008] Install the trackside control equipment of the second signal system in the second signal system area, and install the on-board equipment of the second signal system on the train;

[0009] When the train runs to the switching area between the first signal system and the second signal system, the first signal system is switched to the second signal system through the cooperation of the on-board equipment and the trackside control equipment;

[0010] Trains run on the scheduled route using the second signal system;

[0011] After the train has completed the scheduled route, the second signal system is switched back to the first signal system through the cooperation of the on-board equipment and the trackside control equipment, and the train operates using the first signal system.

[0012] In one embodiment, when the train runs to the switching area between the first signal system and the second signal system, the on-board equipment of the second signal system obtains positioning through the beacon, and the first signal system is switched to the second signal system through the cooperation of the on-board equipment and the trackside control equipment.

[0013] In one embodiment, the switching from the first signal system to the second signal system through the cooperation of the on-board device and the trackside control device includes:

[0014] The vehicle output circuit is disconnected from the on-board device of the first signal system, and the vehicle output circuit is connected to the on-board device of the second signal system, and the on-board device of the second signal system sends the mode information of the second signal system to the trackside control device of the second signal system;

[0015] After receiving the information, the trackside control equipment of the second signal system disconnects the ground equipment from the trackside control equipment of the first signal system. At the same time, the ground equipment connects with the trackside control equipment of the second signal system, and the trackside control equipment of the second signal system provides movement permission to the train.

[0016] In one embodiment, the switching of the second signal system back to the first signal system through the cooperation of the on-board device and the trackside control device includes:

[0017] The vehicle output circuit is disconnected from the on-board equipment of the second signal system, while the vehicle output circuit is connected to the on-board equipment of the first signal system, and the on-board equipment of the second signal system stops sending the mode information of the second signal system to the trackside control equipment of the second signal system;

[0018] The trackside control equipment of the second signal system stops receiving the mode information of the second signal system, the ground equipment disconnects from the trackside control equipment of the second signal system, and at the same time the ground equipment is connected to the trackside control equipment of the first signal system.

[0019] In one embodiment, a first switching switch is provided on the vehicle output circuit, and the first switching switch is electrically connected to the vehicle-mounted equipment of the first signal system or the vehicle-mounted equipment of the second signal system. The first switching switch is used to switch the connection between the vehicle output circuit and the vehicle-mounted equipment of the first signal system or the vehicle-mounted equipment of the second signal system.

[0020] In one embodiment, a second switching switch is provided at the indoor distribution board of the ground equipment, and the second switching switch is electrically connected to the trackside control equipment of the first signal system or the trackside control equipment of the second signal system. The second switching switch is used to switch the connection between the ground equipment and the trackside control equipment of the first signal system or the trackside control equipment of the second signal system.

[0021] In one embodiment, the predetermined route is a return route, and the return route is a route from the down platform of the last station before the return to the up platform of the first station after the return.

[0022] In one embodiment, the second signal system area is an area covering a turnaround route, the switching area between the first signal system and the second signal system is a turnaround station, and the turnaround station is the last station before the turnaround or the first station after the turnaround.

[0023] In one embodiment, the first signal system is a TBTC system, and the second signal system is a TACS system.

[0024] In one embodiment, the ground equipment includes a signal and / or a switch.

[0025] The method for switching between different standard signal systems of rail transit of the present invention has the following beneficial effects:

[0026] (1) The present invention improves the transport capacity of existing lines with a moderate increase in cost.

[0027] (2) In the future, when the existing system reaches the end of its service life, it can be smoothly upgraded to the TACS system. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The present invention is a flowchart of a method for switching between signal systems of different standards in rail transit according to an embodiment of the present invention.

[0029] Figure 2 It is a TACS system area and a TBTC system and TACS system switching area defined in a line of an embodiment of the present invention.

[0030] Figure 3 The figure is a schematic diagram of the connection between the ground equipment and the trackside control equipment in one embodiment of the present invention.

[0031] Figure 4 The figure is a schematic diagram of the connection between the vehicle output circuit and the vehicle-mounted equipment in one embodiment of the present invention. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the invention and are not used to limit the invention.

[0033] At present, the bottleneck of rail transit capacity and operating interval is mainly in the reversing capacity. The latest generation of train control system TACS system can greatly improve the reversing capacity. If the TACS system can be added only at the key reversing station, and the existing TBTC operation can be used before and after the reversal, and switched to TACS operation during the reversal, the bottleneck of the reversing capacity of the existing line can be solved.

[0034] In the existing line of the present invention, the train is equipped with the onboard equipment of the first signal system, which is connected to the vehicle output circuit, the trackside control equipment of the first signal system is installed on the line, which is connected to the ground equipment, and the train is operated by default using the first signal system. Figure 1-2 As shown, the present invention provides a method for switching between different signal systems of rail transit, comprising:

[0035] defining a second signal system area and a first signal system and a second signal system switching area in the line;

[0036] Trackside control equipment of the second signal system is installed in the second signal system area, and on-board equipment of the second signal system is installed on the train;

[0037] When the train runs to the switching area between the first signal system and the second signal system, the first signal system is switched to the second signal system through the cooperation of the on-board equipment and the trackside control equipment;

[0038] Trains run on the scheduled route using the second signal system;

[0039] When the train has completed the scheduled route, the second signal system is switched back to the first signal system through the cooperation of the on-board equipment and the trackside control equipment, and the train operates using the first signal system.

[0040] Furthermore, when the train runs to the switching area between the first signal system and the second signal system, the on-board equipment of the second signal system obtains positioning through the beacon, and the first signal system is switched to the second signal system through the cooperation of the on-board equipment and the trackside control equipment.

[0041] Furthermore, through the cooperation of the on-board equipment and the trackside control equipment, the first signal system is switched to the second signal system, which specifically includes the following steps:

[0042] The vehicle output circuit is disconnected from the on-board device of the first signal system, and the vehicle output circuit is connected to the on-board device of the second signal system, and the on-board device of the second signal system sends the mode information of the second signal system to the trackside control device of the second signal system;

[0043] After receiving the information, the trackside control equipment of the second signal system disconnects the ground equipment from the trackside control equipment of the first signal system. At the same time, the ground equipment connects with the trackside control equipment of the second signal system, and the trackside control equipment of the second signal system provides movement permission to the train.

[0044] Furthermore, through the cooperation of the on-board equipment and the trackside control equipment, the second signal system is switched back to the first signal system, which specifically includes the following steps:

[0045] The vehicle output circuit is disconnected from the on-board equipment of the second signal system, while the vehicle output circuit is connected to the on-board equipment of the first signal system, and the on-board equipment of the second signal system stops sending the mode information of the second signal system to the trackside control equipment of the second signal system;

[0046] The trackside control equipment of the second signal system stops receiving the mode information of the second signal system, the ground equipment disconnects from the trackside control equipment of the second signal system, and at the same time the ground equipment is connected to the trackside control equipment of the first signal system.

[0047] Furthermore, a first switching switch is provided on the vehicle output circuit, the first switching switch is electrically connected to the vehicle-mounted device of the first signal system or the vehicle-mounted device of the second signal system, and the first switching switch is used to switch the connection between the vehicle output circuit and the vehicle-mounted device of the first signal system or the vehicle-mounted device of the second signal system. Preferably, the first switching switch needs to be operated by a cab key to connect or disconnect the vehicle output circuit with the vehicle-mounted device of the second signal system.

[0048] Furthermore, a second switching switch is provided at the indoor distribution board of the ground equipment, and the second switching switch is electrically connected to the trackside control equipment of the first signal system or the trackside control equipment of the second signal system. The second switching switch is used to switch the connection between the ground equipment and the trackside control equipment of the first signal system or the trackside control equipment of the second signal system.

[0049] Furthermore, the scheduled route is a return route, and the return route is a route between the down platform of the last station before the return and the up platform of the first station after the return.

[0050] Furthermore, the second signal system area is an area covering the return route. The switching area between the first signal system and the second signal system is the return station, and the return station is the last station before the return or the first station after the return. In this embodiment, the last station before the return or the first station after the return is the same station. It should be understood that the predetermined route, the second signal system area, and the switching area between the first signal system and the second signal system can be adjusted accordingly according to demand, and the definitions described above are only provided as an optional reference and are not restrictive.

[0051] Furthermore, the first signal system is a TBTC system, and the second signal system is a TACS system.

[0052] Furthermore, the ground equipment includes signals and / or switches.

[0053] Specifically, a method for switching between different signal systems of rail transit according to an embodiment of the present invention includes the following steps:

[0054] 1. Define the TACS system area and the TBTC system and TACS system switching area in the line, see Figure 2 Among them, the TBTC system is an existing system. The on-board equipment of the TBTC system has been installed on the train, and the trackside control equipment of the TBTC system has been installed on the line.

[0055] 2. Add trackside control equipment of the TACS system in the area covering the return route, and add a second switch at the indoor distribution board of the ground equipment (signal / turnout) to electrically connect the trackside control equipment of the TBTC system and the TACS system respectively. Figure 3 The contact of the second switch is connected to point A by default, and the train operates using the TBTC system.

[0056] 3. Add a set of TACS on-board equipment to the train, and add a first switch to the vehicle output circuit to electrically connect the on-board equipment of the TBTC system and the on-board equipment of the TACS system, see Figure 4 The contact of the first switch is connected to point C by default, and the train operates using the TBTC system.

[0057] 4. When the train reaches the down platform of the last station before turning back, the TACS onboard obtains positioning through the beacon.

[0058] 5. After the driver completes boarding and disembarking passengers at the platform, he disconnects the cab key and operates the first switch to point D. The train is controlled by the on-board equipment of the TACS system and sends TACS mode information to the trackside control equipment of the TACS system.

[0059] 6. After receiving the TACS mode information from the train, the trackside control equipment of the TACS system operates the second switch to point B. The ground equipment (signal / turnout) is controlled by the trackside control equipment of the TACS system and provides movement permission to the train.

[0060] 7. The train uses the TACS system for fully automatic turnaround.

[0061] 8. The driver activates the cab key and operates the first switch to point C. The train switches back to the TBTC system. The vehicle is controlled by the on-board equipment of the TBTC system and stops sending TACS mode information to the trackside control equipment of the TACS system.

[0062] 9. After the trackside control equipment of the TACS system fails to receive the TACS mode information of the train, it operates the second switch to point A. The ground equipment (signal / turnout) is controlled by the trackside control equipment of the TBTC system, and the train continues to operate using the TBTC system.

[0063] The method for switching between different standard signal systems of rail transit of the present invention has the following beneficial effects:

[0064] (1) The present invention improves the transport capacity of existing lines with a moderate increase in cost.

[0065] (2) In the future, when the existing system reaches the end of its service life, it can be smoothly upgraded to the TACS system.

[0066] It should be understood that the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0067] The above-described embodiments are only further explanations of the present invention, and are not intended to limit the present invention in other forms. The present invention may also have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding modifications and changes according to the present invention, but these corresponding modifications and changes should all fall within the protection scope of the present invention.

Claims

1. A method for switching between different signal systems of rail transit, wherein a train is equipped with an onboard device of a first signal system, the onboard device of the first signal system is connected to a vehicle output circuit, a trackside control device of the first signal system is installed on the line, the trackside control device of the first signal system is connected to a ground device, and the train is operated by default using the first signal system, characterized in that: The method for switching between different standard signal systems of rail transit includes: defining a second signal system area and a first signal system and a second signal system switching area in the line; Install the trackside control equipment of the second signal system in the second signal system area, and install the on-board equipment of the second signal system on the train; When the train runs to the switching area between the first signal system and the second signal system, the first signal system is switched to the second signal system through the cooperation of the on-board equipment and the trackside control equipment; Trains run on the scheduled route using the second signal system; After the train has completed the scheduled route, the second signal system is switched back to the first signal system through the cooperation of the on-board equipment and the trackside control equipment, and the train operates using the first signal system.

2. The method for switching between different signal systems of rail transit according to claim 1, characterized in that: When the train runs to the switching area between the first signal system and the second signal system, the on-board equipment of the second signal system obtains positioning through the beacon, and the first signal system is switched to the second signal system through the cooperation of the on-board equipment and the trackside control equipment.

3. The method for switching between different signal systems of rail transit according to claim 1, characterized in that: The switching from the first signal system to the second signal system through the cooperation of the on-board equipment and the trackside control equipment includes: The vehicle output circuit is disconnected from the on-board device of the first signal system, and the vehicle output circuit is connected to the on-board device of the second signal system, and the on-board device of the second signal system sends the mode information of the second signal system to the trackside control device of the second signal system; After receiving the information, the trackside control equipment of the second signal system disconnects the ground equipment from the trackside control equipment of the first signal system. At the same time, the ground equipment connects with the trackside control equipment of the second signal system, and the trackside control equipment of the second signal system provides movement permission to the train.

4. The method for switching between different signal systems of rail transit according to claim 1, characterized in that: The switching of the second signal system back to the first signal system through the cooperation of the on-board equipment and the trackside control equipment includes: The vehicle output circuit is disconnected from the on-board equipment of the second signal system, while the vehicle output circuit is connected to the on-board equipment of the first signal system, and the on-board equipment of the second signal system stops sending the mode information of the second signal system to the trackside control equipment of the second signal system; The trackside control equipment of the second signal system stops receiving the mode information of the second signal system, the ground equipment disconnects from the trackside control equipment of the second signal system, and at the same time the ground equipment is connected to the trackside control equipment of the first signal system.

5. The method for switching between different signal systems of rail transit according to claim 3 or 4, characterized in that: A first switching switch is provided on the vehicle output circuit, and the first switching switch is electrically connected to the vehicle-mounted equipment of the first signal system or the vehicle-mounted equipment of the second signal system. The first switching switch is used to switch the connection between the vehicle output circuit and the vehicle-mounted equipment of the first signal system or the vehicle-mounted equipment of the second signal system.

6. The method for switching between different signal systems of rail transit according to claim 3 or 4, characterized in that: A second switching switch is provided at the indoor distribution board of the ground equipment. The second switching switch is electrically connected to the trackside control equipment of the first signal system or the trackside control equipment of the second signal system. The second switching switch is used to switch the connection between the ground equipment and the trackside control equipment of the first signal system or the trackside control equipment of the second signal system.

7. The method for switching between different signal systems of rail transit according to claim 1, characterized in that: The predetermined route is a return route, and the return route is a route between the down platform of the last station before the return and the up platform of the first station after the return.

8. The method for switching between different signal systems of rail transit according to claim 7, characterized in that: The second signal system area is an area covering the return route, the switching area between the first signal system and the second signal system is the return station, and the return station is the last station before the return or the first station after the return.

9. The method for switching between different signal systems of rail transit according to claim 1, characterized in that: The first signal system is a TBTC system, and the second signal system is a TACS system.

10. The method for switching between different signal systems of rail transit according to claim 1, characterized in that: The ground equipment includes signals and / or switches.