A method for controlling turnouts of interconnected CBTC systems

Abstract

The present invention discloses a method for controlling a tie line turnout in an interconnected CBTC system, comprising: adding at least one positioning control relay to a side protection turnout; when a train on one line moves the main approach turnout to a position through the interlocking of the line, the interlocking of another line automatically drives the side protection turnout to a position through the positioning control relay. The present invention realizes the automatic driving of the side protection turnout, and provides side impact protection for the tie line turnout when cross-line operating trains and trains on the line are running together.

Description

Technical Field

[0001] The present invention relates to the field of rail communication technology, and in particular to a method for controlling a turnout of a tie line in an interconnected CBTC system. Background Art

[0002] With the rapid development of urban rail transit, communication-based train control (CBTC) has been increasingly widely used. With the increasing demand for multiple lines to share resources and cross-line passenger network operations, the interconnected CBTC system is becoming more mature.

[0003] In the current interconnection lines, the wiring method of the tie line still adopts the traditional method. Figure 1 As shown in the figure, P1 and P2 are the connecting line switches, which are controlled by different line interlocking devices. When the train on line A passes through P1, it will not automatically drive P2 to the position for lateral protection. Instead, P2's position is used as one of the inspection conditions for turning P1 to the position. Only when P2 is already in position can P1 be turned to the position. When the train on line B passes through P2, P1 is treated in the same way. In traditional non-interconnected lines, during operation, there are no cross-line trains. P1 and P2 will be locked in position normally to provide lateral protection for trains in the two lines. When cross-line shunting is performed after the operation, the two lines will manually arrange the receiving and departure routes respectively, and turn P1 and P2 to the reverse position. After the cross-line shunting is completed, the two lines will manually operate the switches to turn P1 and P2 to the position.

[0004] However, in the interconnection project, during normal operation, the train needs to operate across the line. If there is a train operating across the line on line A, P1 and P2 are moved to the reverse position, and then another train does not cross the line and needs to pass the positioning of P1. However, because P2 cannot be automatically driven to the position and does not meet the side defense turnout conditions, P1 cannot be moved to the position, affecting normal operation. In the interconnection lines that operate across the line, the connecting line turnouts should be the same as the double-action turnouts of the main line, forming the same side defense interlocking driving relationship as the main line turnouts to meet normal operation. However, since the two connecting line turnouts are controlled by different interlocking devices, the current technology cannot solve this problem. How to realize the automatic driving of the side defense turnouts controlled by other interlocking devices will be the technical problem that the present invention needs to solve. Summary of the invention

[0005] The object of the present invention is to provide a method for controlling a tie line turnout of an interconnected CBTC system, so as to realize automatic driving of a side protection turnout and provide side impact protection for the tie line turnout when cross-line operating trains and trains within the line are running together.

[0006] The technical solution to achieve the above purpose is:

[0007] A method for controlling a turnout of a tie line of an interconnected CBTC system, comprising:

[0008] Add at least one positioning control relay to the side turnout;

[0009] When a train on one line moves the main approach turnout to the position through the interlocking of that line, the interlocking of another line automatically drives the side defense turnout to the position through the positioning control relay.

[0010] Preferably, when a train on a line moves the main approach switch to a position through the interlocking of the line, the positioning control relay of the side defense switch is activated, and the interlocking of the line to which the side defense switch belongs detects that the positioning control relay is activated, and automatically drives its side defense switch to a position.

[0011] Preferably, it also includes:

[0012] When a train on one line runs across the line, the interlocking of the line arranges the train to the departure route from the departure platform to the boundary, and the main approach switch is turned to the reverse position; the interlocking of the other line arranges the train to the receiving route from the boundary to the receiving platform, and the side defense switch is turned to the reverse position;

[0013] When the interlocking of another line fails, the side switch can be manually locked in position.

[0014] Preferably, two positioning control relays are added for the side-defense turnout.

[0015] Preferably, two positioning control relays are added to the main approach turnout.

[0016] The beneficial effects of the present invention are as follows: the present invention defines the interconnected line tie line turnouts as the main approach turnouts and the side protection turnouts, and supports the main approach turnouts and the side protection turnouts to be controlled by different interlocks. When non-stop cross-line trains and operating trains on the line are mixed in operation, the present invention can automatically provide complete turnout lateral protection for through trains on the line without human intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a wiring diagram of the tie line in the prior art;

[0018] Figure 2 It is a schematic diagram of the tie line turnout positioning control relay in the present invention;

[0019] Figure 3 It is a schematic diagram of the positioning requirements of the connecting line turnout when the train runs on the line in the present invention;

[0020] Figure 4 It is a schematic diagram of the cross-line operation of the train in the present invention. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] See also Figure 2-4 The interconnected CBTC system tie line switch control method of the present invention comprises the following steps:

[0023] 1. Add at least one positioning control relay to the side-defense turnout. Specifically, the interconnection line connecting line turnout is defined as the main approach turnout and the side-defense turnout, and the main approach turnout and the side-defense turnout are controlled by different interlocking. Add positioning control relays to the side-defense turnout and the main approach turnout respectively, and the number of added positioning control relays is preferably two. Two positioning control relays are set for each turnout, and the commanding party must control the two relays to be sucked up and down at the same time. The commanded interlocking will automatically control the corresponding turnout to the position only when it detects that the two relays are sucked up at the same time.

[0024] 2. When a train on one line moves the main approach turnout to the position through the interlocking of that line, the interlocking of another line automatically drives the side defense turnout to the position through the positioning control relay.

[0025] The positioning control relay is inactive by default. When the train is running on the line, the main approach turnout P1 and the side turnout P2 are required to be positioned. When a train on a line moves the main approach turnout to position through the interlocking of the line, the positioning control relay of the side turnout is activated. When the interlocking of the line to which the side turnout belongs detects that the positioning control relay is activated, it automatically drives its side turnout to position.

[0026] 3. When a train on one line runs across the line, the interlocking of this line arranges the departure route from the departure platform to the boundary, and the main switch of the route is turned to the reverse position; the interlocking of the other line arranges the receiving route from the boundary to the receiving platform, and the side defense switch is turned to the reverse position.

[0027] 4. When the interlocking failure of another line occurs, the side switch can be manually locked in position to ensure the normal operation of the line.

[0028] The following is an explanation based on a specific scenario:

[0029] Scenario a, the train is operating on this line, and the initial positions of P1 and P2 are in reverse positions:

[0030] like Figure 3As shown, train T1 stops at platform 1 of line A, and the next stop is platform 2 of this line. Line A interlocking will arrange the interlocking route from signal X1 to X2, P1 is the main switch of the route, and P2 is the side switch. Line A turns P1 to the position and activates the positioning control relay of P2. Line B interlocking checks that both positioning control relays of P2 are activated, and automatically turns turnout P2 to the position. Line A interlocking also detects the position of P2. If it is detected that P2 is already in the position, the interlocking route X1-X2 is authorized, and the platform 1 exit signal X1 opens the green light.

[0031] Scenario b, the train is operating on this line, and the initial positions of P1 and P2 are located:

[0032] like Figure 3 As shown in the figure, in the same scenario a, train T1 stops at platform 1 of line A, and the interlocking arranges the route X1-X2. Since P1 and P2 are already positioned, the interlocking of line A does not need to turn P1, and will not activate the positioning control relay of P2. The interlocking of line A detects that P1 and P2 are already positioned, authorizes the route X1-X2, and the exit signal X1 opens the green light.

[0033] Scenario c, train cross-line operation:

[0034] like Figure 3 As shown, when train T1 crosses the line on line A, the interlocking of line A arranges the train to depart from departure platform 1 to the line boundary, and turns the switch P1 to the reverse position. The interlocking of line B arranges the train to arrive from the boundary to the receiving platform 3, and turns the switch P2 to the reverse position.

[0035] Line A calculates the movement authorization for the train to the line boundary, splices the movement authorization calculated and forwarded by line B, and then forwards the spliced ​​movement authorization to the train, allowing the train to change lines without stopping.

[0036] Scenario d, the train is operating on the line, and the cross-line interlocking fault occurs:

[0037] like Figure 4 As shown, train T1 stops at platform 1 of line A, and the next stop is platform 2 of line A. The interlocking of line B fails. If P1 and P2 are already in position, T1 is not affected. If P1 and P2 are in reverse position, P2 cannot be driven by P1, and P2 needs to be manually operated and locked in position.

[0038] Scenario e: Train cross-line operation, train receiving or departure interlocking failure:

[0039] Since the turnout controlled by the faulty interlocking cannot be moved, it should be operated and locked in position to ensure the normal operation of trains on the line and eliminate trains crossing the line.

[0040] Scenario f, when the train is operating across the line or there is no train, the positioning control relay fails and is attracted:

[0041] Because each switch has two positioning control relays, the interlocking will automatically operate the corresponding switch to the position only when it detects that both relays are energized at the same time, so the failure of a single relay will not affect normal operation.

[0042] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Those skilled in the relevant technical field may make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also belong to the scope of the present invention and should be defined by the claims.

Claims

1. A method for controlling a turnout of a tie line in an interconnected CBTC system, characterized in that: include: Add at least one positioning control relay to the side turnout; When a train on one line moves the main turnout to the position through the interlocking of that line, the interlocking of another line automatically drives the side turnout to the position through the positioning control relay; When a train on a line moves the main turnout of the route to the position through the interlocking of the line, the positioning control relay of the side turnout is activated. When the interlocking of the line to which the side turnout belongs detects that the positioning control relay is activated, it automatically drives its side turnout to the position. Also includes: When a train on one line runs across the line, the interlocking of the line arranges the train to the departure route from the departure platform to the boundary, and the main approach switch is turned to the reverse position; the interlocking of the other line arranges the train to the receiving route from the boundary to the receiving platform, and the side defense switch is turned to the reverse position; When the interlocking of another line fails, the side switch can be manually locked in position.

2. The interconnected CBTC system tie line switch control method according to claim 1, characterized in that: Two positioning control relays are added for the side protection turnout.

3. The interconnected CBTC system tie line switch control method according to claim 1, characterized in that: Add two positioning control relays to the main turnout of the approach.

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