Train turnaround control method and device

Abstract

This invention provides a train turnaround control method and apparatus. The method includes: determining whether a first train has cleared a target area of ​​the turnaround track where the first train is to travel; the target area is obtained based on the turnaround front area, the turnaround rear positioning area, and the turnaround rear reversal area of ​​the turnaround track; the turnaround front area is located from the turnaround tip to the boundary of the front area of ​​the turnaround track, the turnaround rear positioning area is located from the turnaround tip to the boundary of the rear positioning area of ​​the turnaround track, and the turnaround rear reversal area is located from the turnaround tip to the boundary of the rear reversal area of ​​the turnaround track; after the first train clears the target area, a second train is controlled to enter the turnaround track. This invention shortens the departure interval at the turnaround platform, improves train turnaround efficiency, and increases the utilization rate of turnaround resources.

Description

Technical Field

[0001] This invention relates to the field of rail transit technology, and in particular to a train turnaround control method and device. Background Technology

[0002] The main factor in measuring the headway of urban rail transit lines is the train turnaround time. One of the key aspects of turnaround time is the departure interval between turnaround platforms, that is, the time interval between the departure of the preceding train from the platform and the departure of the following train from the platform. The departure time of the following train depends on the time when the preceding train has cleared the corresponding position.

[0003] like Figure 1 As shown in the diagram, most urban rail transit projects currently place turnouts P01 and P03 of the crossover track in the same axle counting section, and turnouts P02 and P04 in the same axle counting section. During turnarounds, the first-in, first-out principle is followed; the preceding train turns out from turnaround track 2 / 1 onto the upward platform until its rear crosses the track. Figure 1 At point A, a turnaround route XC-Z02 / Z01 can be arranged for the following train located on the down platform to turn around onto the turnaround rail. F01, F02, and F04 are protective signals.

[0004] The existing turnout section locking and unlocking method is based on the physical axle section or track circuit section. Even if a train occupies part of the turnout section, it is considered as occupying the entire section, and the section is only unlocked after the train has completely cleared the entire turnout section. Figure 1 The turnout section can only be unlocked after the rear of the train has passed point A, allowing different routes through the turnout to be processed. This significantly reduces the utilization rate of turnout resources, affects turnaround efficiency, restricts the operational capacity of the line, and is not conducive to reducing the load factor of high-capacity trains. Summary of the Invention

[0005] This invention provides a train turnaround control method and apparatus to solve the defects of large departure intervals at turnaround platforms, low train turnaround efficiency, and low utilization of turnout resources in the prior art, thereby shortening the departure intervals at turnaround platforms and improving train turnaround efficiency and turnout resource utilization.

[0006] This invention provides a train turnaround control method, comprising:

[0007] Determine whether the first train has cleared the target area of ​​the turnout section where the first train is to travel on the turnout track;

[0008] The target area is obtained based on the turnout front area, turnout rear positioning area and turnout rear reversal area of ​​the turnout section.

[0009] The turnout front area is the position from the turnout tip to the boundary of the front area of ​​the turnout section; the turnout rear positioning area is the position from the turnout tip to the boundary of the rear positioning area of ​​the turnout section; and the turnout rear reversal area is the position from the turnout tip to the boundary of the rear reversal area of ​​the turnout section.

[0010] After the first train clears the target area, the second train is controlled to enter the turnaround track.

[0011] According to a train turnaround control method provided by the present invention, the step of controlling a second train to enter the turnaround track after the first train has cleared the target area includes:

[0012] Logical segment boundaries are configured in the turnout pre-turn zone, turnout post-turn positioning zone, and turnout post-turn reversal zone.

[0013] Based on the outer section boundaries of the turnout front area, turnout rear positioning area and turnout rear reversal area, the movable area of ​​the turnout is determined.

[0014] If, based on the movable area of ​​the turnout, it is known that the tail of the first train has crossed the logical segment boundary of the turnout post-positioning area or the turnout post-reversal area, it is determined that the first train has cleared the target area, and the second train is controlled to enter the turnaround track.

[0015] According to a train turnaround control method provided by the present invention, the boundary of the area in front of the turnout is the same as the position of the counting head at the protective signal in front of the turnout tip.

[0016] According to a train turnaround control method provided by the present invention, the step of controlling a second train to enter the turnaround track includes:

[0017] A turnaround route processing command is sent to the ground equipment, so that the ground equipment can process a turnaround route for the second train to the turnaround rail based on the turnaround route processing command.

[0018] The present invention also provides a train turnaround control device, comprising:

[0019] The determination module is used to determine whether the first train has cleared the target area of ​​the turnout section where the first train is to travel in the turnout track.

[0020] The target area is obtained based on the turnout front area, turnout rear positioning area and turnout rear reversal area of ​​the turnout section.

[0021] The turnout front area is the position from the turnout tip to the boundary of the front area of ​​the turnout section; the turnout rear positioning area is the position from the turnout tip to the boundary of the rear positioning area of ​​the turnout section; and the turnout rear reversal area is the position from the turnout tip to the boundary of the rear reversal area of ​​the turnout section.

[0022] The control module is used to control the second train to enter the turnaround track after the first train has cleared the target area.

[0023] According to the present invention, a train turnaround control device is provided, wherein the control module is used for:

[0024] Logical segment boundaries are configured in the turnout pre-turn zone, turnout post-turn positioning zone, and turnout post-turn reversal zone.

[0025] Based on the outer section boundaries of the turnout front area, turnout rear positioning area and turnout rear reversal area, the movable area of ​​the turnout is determined.

[0026] If, based on the logical segment, it is determined that the tail of the first train has crossed the boundary of the post-turnout positioning area or the post-turnout reversal area, the first train is cleared from the target area, and the second train is controlled to enter the turnaround track.

[0027] According to the present invention, a train turnaround control device is provided, wherein the control module is used for:

[0028] A turnaround route processing command is sent to the ground equipment, so that the ground equipment can process a turnaround route for the second train to the turnaround rail based on the turnaround route processing command.

[0029] The train turnaround control method and device provided by this invention logically divides the turnaround section based on the turnaround front area, turnaround rear positioning area, and turnaround rear reversing area in the turnaround section where the preceding train is waiting to travel. Based on the area obtained from the logical division, it determines whether the preceding train has cleared the turnaround, thereby reducing the range of the preceding train's clearance and reducing the time the preceding train occupies the turnaround section. This allows the following train to enter the turnaround track earlier when it is ready to depart, thus shortening the departure interval at the turnaround platform, improving train turnaround efficiency and turnaround resource utilization, and thereby reducing the full load rate of trains during peak hours. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1This is a schematic diagram of the linear structure of the existing turnaround station;

[0032] Figure 2 This is a flowchart illustrating the train turnaround control method provided by the present invention;

[0033] Figure 3 This is one of the schematic diagrams of the train turnaround route in the train turnaround control method provided by the present invention;

[0034] Figure 4 This is the second schematic diagram of the train turnaround route in the train turnaround control method provided by the present invention;

[0035] Figure 5 This is a schematic diagram of the train turnaround control device provided by the present invention. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0037] The following is combined with Figure 2 A train turnaround control method according to the present invention includes: step 201, determining whether a first train has cleared the target area of ​​the turnaround track section where the first train is to travel;

[0038] The execution entity in this embodiment is the control system of the first train.

[0039] The first train and the second train are two adjacent trains that cross the turnaround track. The first train is the leading train, and the second train is the following train.

[0040] See the structure of the turnaround rail. Figure 1 . Figure 1 The first and second trains enter the up line from the down line via a turnaround rail. This embodiment also applies to the case where the first and second trains enter the down line from the up line via two different turnaround rails.

[0041] After the first train passes the down line exit signal XC, it enters the turnout section of the turnaround track to turn back, and then runs to the up line.

[0042] Figure 3 and Figure 4 The dashed arrows indicate the directions of travel for the two trains. It can be seen that the first train can choose to enter the up-line route via turnaround track 2 or via turnaround track 1.

[0043] The target area is obtained based on the turnout front area, turnout rear positioning area and turnout rear reversal area of ​​the turnout section.

[0044] The turnout front area is the position from the turnout tip to the boundary of the front area of ​​the turnout section; the turnout rear positioning area is the position from the turnout tip to the boundary of the rear positioning area of ​​the turnout section; and the turnout rear reversal area is the position from the turnout tip to the boundary of the rear reversal area of ​​the turnout section.

[0045] Figure 3 The first train passes through turnout P02. P02 is the tip of the turnout section. The area in front of the turnout in the turnout section is the area between the protective signal F02 and the tip P02. The area behind the turnout is the area at a certain point between the tips P02 and P04. The area behind the turnout is the area at a certain point between the tips P02 and P03.

[0046] Figure 4 The first train passes through turnout P01. P01 is the position of the turnout tip in the turnout section. The turnout front area of ​​the turnout section is the area between the protective signal F01 and the turnout tip P01. The turnout rear positioning area is the area at a certain point between the turnout tips P01 and P03. The turnout rear reversal area is the area at a certain point between the turnout tips P01 and P04.

[0047] This embodiment utilizes the physical structure of the turnout section to perform a refined division of the turnout section. The target area is composed of the area before the turnout, the positioning area after the turnout, and the reversing area after the turnout.

[0048] Step 202: After the first train clears the target area, control the second train to enter the turnaround track.

[0049] The movable section of the turnout is locked before the first train leaves the section. After the first train leaves the section, the movable section of the turnout is unlocked, allowing the second train to enter the turnaround track.

[0050] In existing technologies, the entire turnout section is used as the locking and unlocking range. This embodiment changes the locking and unlocking range of the turnout section, thereby enabling the following train to enter the turnaround track in advance when it is ready to depart.

[0051] This embodiment logically divides the turnout section based on the turnout front area, turnout rear positioning area, and turnout rear reversing area within the turnout section where the preceding train is waiting to depart. Based on the areas obtained from the logical division, it determines whether the preceding train has cleared the track, thus narrowing the range of the preceding train's clearance and reducing the time the preceding train occupies the turnout section. This allows the following train to enter the turnaround track earlier when it is ready to depart, thereby shortening the departure interval at the turnaround platform, improving train turnaround efficiency and turnout resource utilization, and ultimately reducing the train's full load rate during peak hours.

[0052] Based on the above embodiments, the step of controlling the second train to enter the turnaround track after the first train has cleared the target area in this embodiment includes:

[0053] Logical segment boundaries are configured in the turnout pre-turn zone, turnout post-turn positioning zone, and turnout post-turn reversal zone.

[0054] In the train control system, the movable area boundary, which is composed of the outer boundaries of the turnout front area, the turnout rear positioning area, and the turnout rear reversal area, is configured as the logical segment boundary.

[0055] The first train Figure 3 When traveling in the direction of the dashed arrow, the logical section boundary before the turnout in the turnout section is represented by "|" located at the position of the protective signal F02, the logical section boundary after the turnout is represented by "|" located between turnout P02 and P04, and the logical section boundary after the turnout is reversed is represented by "|" located between turnout P02 and P03.

[0056] The first train Figure 4 When traveling in the direction of the dashed arrow, the logical section boundary before the turnout in the turnout section is represented by "|" located at the position of the protective signal F01, the logical section boundary after the turnout is represented by "|" located between turnout P01 and P03, and the logical section boundary after the turnout is reversed is represented by "|" located between turnout P01 and P04.

[0057] The turnout section is divided into logical sections using the logical section boundaries of the turnout front, turnout rear positioning and turnout rear reversal.

[0058] Based on the logical segment boundaries of the turnout front area, turnout rear positioning area, and turnout rear reversal area, the movable area of ​​the turnout is determined.

[0059] If, based on the movable area of ​​the turnout, it is known that the tail of the first train has crossed the logical segment boundary of the turnout post-positioning area or the turnout post-reversal area, it is determined that the first train has cleared the target area, and the second train is controlled to enter the turnaround track.

[0060] Figure 3 After the preceding train turns off from the turnaround rail where F02 is located until the rear of the train crosses the logical section boundary of the turnout P02, the following train is controlled to enter the turnaround rail.

[0061] Figure 4 After the train in the middle turns out from the turnaround rail where F01 is located until the rear of the train crosses the logical section boundary of the reverse zone after turnout P01, it controls the train behind to enter the turnaround rail.

[0062] This embodiment divides the turnout section into logical segments by using the logical segment boundaries of the turnout pre-turnout, turnout post-turnout positioning, and turnout post-turnout reversal. It determines whether the preceding train has cleared the turnout based on whether the rear of the preceding train has crossed the logical segment boundary of the turnout post-turnout positioning, thereby reducing the time the preceding train occupies the turnout section and allowing the following train to enter the turnaround track earlier when it is ready to depart. This shortens the departure interval at the turnaround platform, improves the train turnaround efficiency and turnout resource utilization, and reduces the train load factor during peak hours.

[0063] Based on the above embodiments, in this embodiment, the boundary of the turnout front area is the same as the position of the counting head at the protective signal in front of the switch rail.

[0064] Figure 3 The boundary of the turnout area in the middle is the same as the position of the counting head at the F02 protective signal. Figure 4 The boundary of the turnout area in the middle is the same as the position of the counting head at the F01 protective signal.

[0065] Based on the above embodiments, the step of controlling the second train to enter the turnaround track in this embodiment includes:

[0066] A turnaround route processing command is sent to the ground equipment, so that the ground equipment can process a turnaround route for the second train to the turnaround rail based on the turnaround route processing command.

[0067] When the preceding train has cleared the target area, through a series of information exchanges between the onboard equipment of the preceding train and the ground equipment, the ground equipment switches the turnout to allow the following train to enter the turnaround track.

[0068] The train turnaround control device provided by the present invention is described below. The train turnaround control device described below can be referred to in correspondence with the train turnaround control method described above.

[0069] like Figure 5 As shown, the device includes a determining module 501 and a control module 502, wherein:

[0070] The determining module 501 is used to determine whether the first train has cleared the target area of ​​the turnout section where the first train is to travel in the turnout track;

[0071] The first train and the second train are two adjacent trains that cross the turnaround track. The first train is the leading train, and the second train is the following train.

[0072] After the first train passes the down line exit signal XC, it enters the turnout section of the turnaround track to turn back, and then runs to the up line.

[0073] The target area is obtained based on the turnout front area, turnout rear positioning area and turnout rear reversal area of ​​the turnout section.

[0074] The turnout front area is the position from the turnout tip to the boundary of the front area of ​​the turnout section; the turnout rear positioning area is the position from the turnout tip to the boundary of the rear positioning area of ​​the turnout section; and the turnout rear reversal area is the position from the turnout tip to the boundary of the rear reversal area of ​​the turnout section.

[0075] This embodiment utilizes the physical structure of the turnout section to perform a refined division of the turnout section. The target area is composed of the area before the turnout, the positioning area after the turnout, and the reversing area after the turnout.

[0076] The control module 502 is used to control the second train to enter the turnaround track after the first train has cleared the target area.

[0077] The movable section of the turnout is locked before the first train leaves the section. After the first train leaves the section, the movable section of the turnout is unlocked, allowing the second train to enter the turnaround track.

[0078] This embodiment logically divides the turnout section based on the turnout front area, turnout rear positioning area, and turnout rear reversing area within the turnout section where the preceding train is waiting to depart. Based on the areas obtained from the logical division, it determines whether the preceding train has cleared the track, thus narrowing the range of the preceding train's clearance and reducing the time the preceding train occupies the turnout section. This allows the following train to enter the turnaround track earlier when it is ready to depart, thereby shortening the departure interval at the turnaround platform, improving train turnaround efficiency and turnout resource utilization, and ultimately reducing the train's full load rate during peak hours.

[0079] Based on the above embodiments, the control module in this embodiment is used for:

[0080] Logical segment boundaries are configured in the turnout pre-turn zone, turnout post-turn positioning zone, and turnout post-turn reversal zone.

[0081] Based on the outer section boundaries of the turnout front area, turnout rear positioning area and turnout rear reversal area, the movable area of ​​the turnout is determined.

[0082] If, based on the movable area of ​​the turnout, it is known that the tail of the first train has crossed the logical segment boundary of the turnout post-positioning area or the turnout post-reversal area, it is determined that the first train has cleared the target area, and the second train is controlled to enter the turnaround track.

[0083] Based on the above embodiments, in this embodiment, the boundary of the area in front of the turnout is the same as the position of the counting head at the protective signal in front of the turnout tip.

[0084] Based on the above embodiments, the control module in this embodiment is used for:

[0085] A turnaround route processing command is sent to the ground equipment, so that the ground equipment can process a turnaround route for the second train to the turnaround rail based on the turnaround route processing command.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A train turnaround control method, characterized in that, include: Determine whether the first train has cleared the target area of ​​the turnout section where the first train is to travel on the turnout track; The target area is obtained based on the turnout front area, turnout rear positioning area and turnout rear reversal area of ​​the turnout section. The turnout pre-turn zone is the area between the protective signal and the turnout tip of the turnout section; the turnout post-turn positioning zone is the area from the turnout tip to the boundary of the post-turn positioning zone of the turnout section; the turnout post-turn reversal zone is the area from the turnout tip to the boundary of the post-turn reversal zone of the turnout section. The turnout pre-turn zone, the turnout post-turn positioning zone, and the turnout post-turn reversal zone are obtained by finely dividing the turnout section using its physical structure. The boundary of the turnout pre-turn zone is the same as the position of the counter head at the protective signal in front of the turnout tip. After the first train clears the target area, the second train is controlled to enter the turnaround track; the first train and the second train are two adjacent trains passing through the turnaround track, with the first train being the leading train and the second train being the following train.

2. The train turnaround control method according to claim 1, characterized in that, After the first train clears the target area, the steps of controlling the second train to enter the turnaround track include: Logical segment boundaries are configured in the turnout pre-turn zone, turnout post-turn positioning zone, and turnout post-turn reversal zone. Based on the outer section boundaries of the turnout front area, turnout rear positioning area and turnout rear reversal area, the movable area of ​​the turnout is determined. If, based on the movable area of ​​the turnout, it is known that the tail of the first train has crossed the logical segment boundary of the turnout post-positioning area or the turnout post-reversal area, it is determined that the first train has cleared the target area, and the second train is controlled to enter the turnaround track.

3. The train turnaround control method according to claim 1 or 2, characterized in that, The steps of controlling the second train to enter the turnaround track include: A turnaround route processing command is sent to the ground equipment, so that the ground equipment can process a turnaround route for the second train to the turnaround rail based on the turnaround route processing command.

4. A train turnaround control device, characterized in that, include: The determination module is used to determine whether the first train has cleared the target area of ​​the turnout section where the first train is to travel in the turnout track. The target area is obtained based on the turnout front area, turnout rear positioning area and turnout rear reversal area of ​​the turnout section. The turnout pre-turn zone is the area between the protective signal and the turnout tip of the turnout section; the turnout post-turn positioning zone is the area from the turnout tip to the boundary of the post-turn positioning zone of the turnout section; the turnout post-turn reversal zone is the area from the turnout tip to the boundary of the post-turn reversal zone of the turnout section. The turnout pre-turn zone, the turnout post-turn positioning zone, and the turnout post-turn reversal zone are obtained by finely dividing the turnout section using its physical structure. The boundary of the turnout pre-turn zone is the same as the position of the counter head at the protective signal in front of the turnout tip. The control module is used to control the second train to enter the turnaround track after the first train has cleared the target area; the first train and the second train are two adjacent trains passing through the turnaround track, with the first train being the leading train and the second train being the following train.

5. The train turnaround control device according to claim 4, characterized in that, The control module is used for: Logical segment boundaries are configured in the turnout pre-turn zone, turnout post-turn positioning zone, and turnout post-turn reversal zone. Based on the outer section boundaries of the turnout front area, turnout rear positioning area and turnout rear reversal area, the movable area of ​​the turnout is determined. If, based on the movable area of ​​the turnout, it is known that the tail of the first train has crossed the logical segment boundary of the turnout post-positioning area or the turnout post-reversal area, it is determined that the first train has cleared the target area, and the second train is controlled to enter the turnaround track.

6. The train turnaround control device according to claim 4 or 5, characterized in that, The control module is used for: A turnaround route processing command is sent to the ground equipment, so that the ground equipment can process a turnaround route for the second train to the turnaround rail based on the turnaround route processing command.

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