Train control method based on relay information interaction

Abstract

The application provides a train control method based on relay information interaction, wherein when a cross-line train performs a cross-line operation, a national railway CTCS system and a subway CBTC system plan a running path of the cross-line train by using information interaction between relays arranged on a national railway line and a subway line, so as to control the cross-line train to complete the cross-line operation. The application has the advantage that the cross-line train can complete the cross-line operation by the information interaction of the relays arranged on the national railway line and the subway line under the condition that the national railway CTCS system and the subway CBTC system do not have direct information interaction.

Description

Technical Field

[0001] This invention relates to the field of railway signal control systems, and more particularly to a train control method based on relay information interaction. Background Technology

[0002] With the continuous development of urban railways in my country, a type of connecting station has emerged on national high-speed railway lines that can simultaneously connect to both national high-speed railway lines and urban subway lines. This connecting station serves as both a station on the national high-speed railway line and a station on the urban subway line. When there is transportation demand, the connecting station needs to handle cross-line operations for subway trains. Cross-line operations refer to trains that have entered the connecting station from the urban subway line and then travel from the urban subway line to the national high-speed railway line connected to the connecting station; or trains that have entered the connecting station from the national high-speed railway line and then travel from the national high-speed railway line to the urban subway line connected to the connecting station.

[0003] To meet transportation demands, the connecting station needs to simultaneously install both the CTCS (China Train Control System) for China's high-speed passenger lines and the CBTC (Communication Based Train Control System) for urban subway lines, and these two systems require necessary information exchange. However, currently, there are no relevant specifications or standards defining the communication interface between the CTCS and CBTC systems for information exchange. Therefore, the CTCS and CBTC systems cannot communicate directly. Furthermore, the communication interfaces of the CTCS and CBTC systems under relevant specifications or standards are fixed, and for safety and necessity reasons, there is no precedent for adding new communication interfaces. For these reasons, the CTCS and CBTC systems lack the conditions for direct information exchange and cannot control cross-line trains entering the connecting station to complete cross-line operations through direct communication interface connections. Summary of the Invention

[0004] In view of this, the purpose of this invention is to provide a train control method based on relay information interaction, which can control cross-line trains entering the connection station through the China Railway CTCS system and the metro CBTC system, so that the cross-line trains can complete the cross-line operation.

[0005] In a first aspect, embodiments of the present invention provide a train control method based on relay information interaction, characterized in that it includes:

[0006] Step 1: Determine whether the cross-line train is performing cross-line operations;

[0007] Step 2: If the cross-line operation is performed, determine whether the cross-line train is an up-line cross-line train or a down-line cross-line train. If the cross-line train is the up-line cross-line train, proceed to Step 3; if the cross-line train is the down-line cross-line train, proceed to Step 4.

[0008] Step 3: If it is the aforementioned up-line crossover train, the metro CBTC system controls the fourth switch to open the lateral direction, and the up-line crossover train runs towards the fourth switch on the metro line;

[0009] The China Railway CTCS system collects the lateral direction information of the fourth turnout, controls the lateral direction of the second turnout, and controls the first relay to be energized and pulled up.

[0010] The metro CBTC system collects the excitation and energizing information of the first relay, controls the metro signal to send the first signal, and the up-line cross-line train receives the first signal and runs across the national railway line via the fourth turnout and the second turnout respectively.

[0011] Step 4: If it is the downline cross-line train, the China Railway CTCS system controls the first turnout to open the lateral direction, and the downline cross-line train runs on the China Railway line toward the first turnout;

[0012] The subway CBTC system collects the lateral direction information of the first turnout, controls the lateral direction of the third turnout, and controls the second relay to be energized and pulled up.

[0013] The China Railway CTCS system collects the excitation and energizing information of the second relay, controls the China Railway signal to send the second signal, and the downline cross-line train receives the second signal and runs across the subway line via the first switch and the third switch respectively.

[0014] Preferably, when the up-line cross-line train is detected to be running to the first arrival / departure track, the metro CBTC system controls the fourth turnout to open in the lateral direction.

[0015] Preferably, in step 3, controlling the opening of the second turnout in the lateral direction and controlling the excitation of the first relay includes: controlling the opening of the second turnout in the lateral direction, locking the route through the lateral direction of the second turnout and the track section where the second turnout is located, and controlling the excitation of the first relay.

[0016] Preferably, the metro CBTC system collects data from the metro transponder and the metro axle counting device when the up-line crossover train travels across the first arrival / departure track and the fourth turnout to the national railway line. When the front of the up-line crossover train leaves the jurisdiction of the metro CBTC system, the metro CBTC system terminates its control over the up-line crossover train.

[0017] Preferably, when the downline cross-line train is detected to be moving towards the second arrival / departure track, the China Railway CTCS system controls the opening of the first turnout in the lateral direction.

[0018] Preferably, in step 4, controlling the opening lateral direction of the third turnout and controlling the excitation and energization of the second relay includes: controlling the opening lateral direction of the third turnout, determining the running route from the third turnout to the second arrival / departure line, and controlling the excitation and energization of the second relay.

[0019] Preferably, when the head of the downline cross-track train passes the insulating joint in the lateral direction of the first turnout and leaves the jurisdiction of the China Railway CTCS system, the China Railway CTCS system terminates its control over the downline cross-track train.

[0020] Preferably, a voltage signal is output through the output terminal of the controllable drive power supply to energize and pull up the signal relay.

[0021] Preferably, power information is collected through a power information receiving terminal to obtain the energized or de-energized states of the first and second relays.

[0022] Preferably, the power acquisition output terminals are connected to the middle contacts of the first group of contacts in the relay contact system, and the power acquisition information receiving terminals are connected to the front contacts of the first group of contacts in the relay contact system. When any relay is energized, the middle contacts and the front contacts of the first group of contacts in the relay contact system are connected.

[0023] The advantage of this invention is that, under the premise that the China Railway CTCS system and the metro CBTC system do not have direct information interaction, cross-line trains can carry out cross-line operations through information interaction between relays set up in the China Railway CTCS system and the metro CBTC system, reducing the risks caused by adding communication interfaces to the original system.

[0024] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained in accordance with the structures particularly pointed out in the description, claims and drawings.

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic flowchart of a train control method based on relay information interaction, provided as an embodiment of the present invention.

[0028] Figure 2 This is a schematic diagram of the operation of a cross-line train within a connecting station, provided as an embodiment of the present invention, using a train control method based on relay information interaction.

[0029] Figure 3a This is a schematic diagram of a relay contact system connection method for a train control method based on relay information interaction, provided in an embodiment of the present invention.

[0030] Figure 3b This is a schematic diagram of a relay contact system connection method for a train control method based on relay information interaction, provided in an embodiment of the present invention.

[0031] Figure 3c This is a schematic diagram of a relay contact system connection method for a train control method based on relay information interaction, provided in an embodiment of the present invention.

[0032] Figure 3d This is a schematic diagram of a relay contact system connection method for a train control method based on relay information interaction, provided in an embodiment of the present invention. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] To facilitate understanding of this embodiment, in conjunction with Figure 1 This invention provides a detailed description of a train control method based on relay information interaction as disclosed in an embodiment of the invention.

[0035] Example 1:

[0036] The train control method based on relay information interaction disclosed in this invention includes the following steps:

[0037] Step 1: Determine whether the cross-line train is performing cross-line operations;

[0038] Step 2: If a cross-line operation is to be performed, determine whether the cross-line train is an up-line cross-line train or a down-line cross-line train. If the cross-line train is an up-line cross-line train, proceed to Step 3; if the cross-line train is a down-line cross-line train, proceed to Step 4.

[0039] Step 3: If it is an up-line crossover train, the metro CBTC system controls the fourth switch to open the lateral direction, and the up-line crossover train runs towards the fourth switch on the metro line;

[0040] The China Railway CTCS system collects information on the lateral direction of the fourth turnout, controls the lateral direction of the second turnout, and controls the first relay to be energized and pulled up.

[0041] The metro CBTC system collects the excitation and energizing information of the first relay, controls the metro signal to send the first signal, and the up-line cross-line train receives the first signal and runs across the national railway line via the fourth switch and the second switch respectively.

[0042] Step 4: If it is a downline cross-line train, the China Railway CTCS system controls the opening of the first turnout in the lateral direction, and the downline cross-line train runs towards the first turnout on the China Railway line;

[0043] The subway CBTC system collects information on the lateral direction of the first turnout, controls the lateral direction of the third turnout, and controls the second relay to be energized and pulled up.

[0044] The China Railway CTCS system collects the excitation and energizing information of the second relay, controls the China Railway signal to send the second signal, and the downline cross-line train receives the second signal and runs across the subway line via the first and third switches respectively.

[0045] Based on the above steps, the embodiments of the present invention will be described in detail as follows:

[0046] Step 1: Determine whether the cross-line train is performing cross-line operations;

[0047] Step 2: If a cross-line operation is to be performed, determine whether the cross-line train is an up-line cross-line train or a down-line cross-line train. If the cross-line train is an up-line cross-line train, proceed to Step 3; if the cross-line train is a down-line cross-line train, proceed to Step 4.

[0048] Among them, the up-line cross-line trains are trains that cross from the metro line to the national railway line, and the down-line cross-line trains are trains that cross from the national railway line to the metro line; the national railway line is the national railway passenger dedicated line, and the metro line is the urban metro line.

[0049] Step 3: If it is an up-line crossover train, the metro CBTC system controls the fourth switch to open the lateral direction, and the up-line crossover train runs towards the fourth switch on the metro line;

[0050] The China Railway CTCS system collects information on the lateral direction of the fourth turnout, controls the lateral direction of the second turnout, and controls the first relay to be energized and pulled up.

[0051] The metro CBTC system collects the excitation and energizing information of the first relay, controls the metro signal to send the first signal, and the up-line cross-line train receives the first signal and runs across the national railway line via the fourth switch and the second switch respectively.

[0052] Preferably, when an upward cross-line train is detected to be running to the first arrival / departure track, the metro CBTC system controls the fourth turnout to open in the lateral direction.

[0053] Preferably, in step 3, controlling the opening of the second turnout in the lateral direction and controlling the excitation of the first relay includes: controlling the opening of the second turnout in the lateral direction, locking the route through the lateral direction of the second turnout and the track section where the second turnout is located, and controlling the excitation of the first relay.

[0054] Preferably, the metro CBTC system collects data from metro transponders and metro axle counting equipment when an up-line crossover train travels laterally across the national railway line via the first arrival / departure track and the fourth turnout. Once the locomotive of the up-line crossover train leaves the jurisdiction of the metro CBTC system, the metro CBTC system terminates its control over the up-line crossover train.

[0055] In this embodiment, the first arrival / departure track is arrival / departure track 2G, the fourth turnout is turnout 4, the second turnout is turnout 2, the first relay is GTYXSFCJ relay, the subway signal is SD1 signal, and the first signal is SD1 signal. Specifically, the SD1 signal is the permission signal given by the SD1 signal that allows the up-line crossover train to pass the SD1 signal and run towards the national railway line.

[0056] Step 4: If it is a downline cross-line train, the China Railway CTCS system controls the opening of the first turnout in the lateral direction, and the downline cross-line train runs towards the first turnout on the China Railway line;

[0057] The subway CBTC system collects information on the lateral direction of the first turnout, controls the lateral direction of the third turnout, and controls the second relay to be energized and pulled up.

[0058] The China Railway CTCS system collects the excitation and energizing information of the second relay, controls the China Railway signal to send the second signal, and the downline cross-line train receives the second signal and runs across the subway line via the first and third switches respectively.

[0059] Preferably, when a downline cross-line train is detected moving towards the second arrival / departure track, the China Railway CTCS system controls the first turnout to open in the lateral direction.

[0060] Preferably, in step 4, controlling the opening lateral direction of the third turnout and controlling the excitation and energization of the second relay includes: controlling the opening lateral direction of the third turnout, determining the running route from the third turnout to the second arrival / departure line, and controlling the excitation and energization of the second relay.

[0061] Preferably, after the head of the downline cross-line train passes the insulating joint in the lateral direction of the first turnout and leaves the jurisdiction of the China Railway CTCS system, the China Railway CTCS system ends its control over the downline cross-line train.

[0062] In this embodiment, the second arrival / departure track is arrival / departure track 1G, the first turnout is turnout 1, the third turnout is turnout 3, the second relay is DTYXXJCJ relay, the national railway signal is X signal, and the second signal is X signal. Specifically, the X signal is the permission signal given by the X signal that allows the down-line crossover train to pass the X signal and run towards the subway line.

[0063] Preferably, a voltage signal is output through the controllable drive power supply output terminal to energize and pull up the signal relay. In this embodiment, the voltage signal is a DC24 voltage signal, and the signal relay is a dedicated safety relay for signals, including a turnout 4-FBJ relay and a turnout 1-FBJ relay.

[0064] Specifically, the signal relay is energized and activated by outputting a voltage signal through the controllable drive power supply output terminal. This includes: when turnout 4 is open in the lateral direction, the metro CBTC system outputs a DC24 voltage signal through the controllable drive power supply output terminal to energize and activate the turnout 4-FBJ signal relay; when turnout 1 is open in the lateral direction, the China Railway CTCS system outputs a DC24 voltage signal through the controllable drive power supply output terminal to energize and activate the turnout 1-FBJ signal relay.

[0065] Preferably, power information is collected through a power information receiving terminal to obtain the energized or de-energized states of the first and second relays.

[0066] Specifically, power information is collected through the power information receiving terminal to obtain the energized or de-energized state of the relay. This includes: the metro CBTC system collecting power information through the power information receiving terminal to obtain the energized or de-energized state of the GTYXSFCJ relay; and the China Railway CTCS system collecting power information through the power information receiving terminal to obtain the energized or de-energized state of the DTYXXJCJ relay.

[0067] Furthermore, the power supply output terminals are connected to the middle contacts of the first group of contacts in the relay contact system, and the power supply information receiving terminals are connected to the front contacts of the first group of contacts in the relay contact system. When any relay is energized, the middle and front contacts of the first group of contacts in the relay contact system are connected.

[0068] In this embodiment, the relay contact system includes: GTYXSFCJ relay contact system, DTYXXJCJ relay, turnout 1-DBJ relay contact system, turnout 1-FBJ relay contact system, turnout 2-DBJ relay contact system, and turnout 2-FBJ relay contact system.

[0069] The following content combined Figure 2 , Figure 3a , Figure 3b , Figure 3c , Figure 3d Further, an example of Example 1 will be provided:

[0070] Combination Figure 2 Depending on whether it connects to a national railway high-speed line or an urban subway line, the connecting station is divided into the jurisdiction of the national railway CTCS system and the jurisdiction of the subway CBTC system. The connecting station is equipped with national railway lines, subway lines, and turnouts. The national railway lines are equipped with national railway signals, national railway transponders, national railway insulating joints, and national railway track circuits. The subway lines are equipped with subway signals, subway axle counting equipment, and subway transponders. The turnouts include turnout 1, turnout 2, turnout 3, turnout 4, and turnout 5.

[0071] The national railway signaling includes: X signal, SIII signal, XIII signal, SN signal, XN signal, SIV signal, XIV signal, and S signal; the national railway transponders include: active transponders and passive transponders; the national railway track circuits include: turnout section 1DG, arrival / departure track IIIG, turnout-free section 3BG, turnout section 2DG, arrival / departure track IVG, and turnout-free section 4BG. Among them, arrival / departure track IIIG and arrival / departure track IVG are dedicated national railway arrival / departure tracks, which are only used by national railway EMU trains.

[0072] The subway signal lights include: XD1 signal light, XD2 signal light, XD3 signal light, XD4 signal light, XD5 signal light, SD1 signal light, SD2 signal light, and SD3 signal light; the subway axle counting equipment models include: JZ1, JZ2, JZ3, JZ4, JZ5, JZ6, JZ7, JZ8, and JZ9; arrival / departure lines 1G and 2G are dedicated subway arrival / departure lines, used only by urban subway trains.

[0073] Furthermore, the China Railway CTCS system is equipped with dedicated safety relays for signals, including: turnout 1-DBJ relay, turnout 1-FBJ relay, turnout 2-DBJ relay, and turnout 2-FBJ relay.

[0074] When turnout 1 is open in the lateral direction, the China Railway CTCS system can output a DC24 voltage signal through its controllable drive power output terminal to energize and pull up the turnout 1-FBJ relay; when turnout 1 is open in the through direction, the China Railway CTCS system can output a DC24 voltage signal through its controllable drive power output terminal to energize and pull up the turnout 1-DBJ relay.

[0075] When turnout 2 is in the lateral direction, the China Railway CTCS system can output a DC24 voltage signal through its controllable drive power output terminal to energize and pull up the turnout 2-FBJ relay; when turnout 2 is in the through direction, the China Railway CTCS system can output a DC24 voltage signal through its controllable drive power output terminal to energize and pull up the turnout 2-DBJ relay.

[0076] Accordingly, the metro CBTC system is equipped with dedicated safety relays for signals, including: turnout 3-DBJ relay, turnout 3-FBJ relay, turnout 4-DBJ relay, and turnout 4-FBJ relay.

[0077] Specifically, when turnout 3 is in the lateral direction, the metro CBTC system can output a DC24 voltage signal through its controllable drive power output terminal to energize and pull up the turnout 3-FBJ relay; when turnout 3 is in the through direction, the metro CBTC system can output a DC24 voltage signal through its controllable drive power output terminal to energize and pull up the turnout 3-DBJ relay.

[0078] When turnout 4 is in the lateral direction, the metro CBTC system can output a DC24 voltage signal through its controllable drive power output terminal to energize and pull up the turnout 4-FBJ relay; when turnout 4 is in the through direction, the metro CBTC system can output a DC24 voltage signal through its controllable drive power output terminal to energize and pull up the turnout 4-DBJ relay.

[0079] Combination Figure 3a , Figure 3b , Figure 3c , Figure 3d The subway CBTC system can determine the opening direction of switches controlled by the China Railway CTCS system in the following way:

[0080] First, the subway CBTC system at the connection station obtains the lifting or lowering status of turnout 1-DBJ relay, turnout 1-FBJ relay, turnout 2-DBJ relay, and turnout 2-FBJ relay.

[0081] Secondly, the power output terminals are connected to the middle contacts of the first group of contacts in the turnout 1-DBJ relay contact system, turnout 1-FBJ relay contact system, turnout 2-DBJ relay contact system, and turnout 2-FBJ relay contact system, respectively; the power information receiving terminals are connected to the front contacts of the first group of contacts in the turnout 1-DBJ relay contact system, turnout 1-FBJ relay contact system, turnout 2-DBJ relay contact system, and turnout 2-FBJ relay contact system, respectively.

[0082] Based on the above steps, when any one of the turnout 1-DBJ relay, turnout 1-FBJ relay, turnout 2-DBJ relay, or turnout 2-FBJ relay is energized, the middle contact of the first group of contacts in its relay contact system is connected to the front contact. At this time, the metro CBTC system collects and receives power information through the power information receiving terminal. The power information reaches the metro CBTC system power information receiving terminal through the middle contact and the front contact, thereby enabling the metro CBTC system to obtain the opening direction of the turnout controlled by the China Railway CTCS system.

[0083] Correspondingly, the way the China Railway CTCS system at the connecting station learns the opening direction of the turnout controlled by the Metro CBTC system is the same as the way the Metro CBTC system can learn the opening direction of the turnout controlled by the China Railway CTCS system, which will not be repeated here.

[0084] like Figure 2 As shown, when a cross-line train is performing cross-line operations and is an upward cross-line train, it runs from Metro Station C to National Railway Station A via the connecting station. When the upward cross-line train is detected to be running on the arrival / departure track 2G, the Metro CBTC system controls the turnout 4 to open the lateral direction and outputs a DC24 voltage signal through the controllable drive power output terminal, which excites and pulls up the turnout 4-FBJ relay, and the upward cross-line train runs on the metro line toward the turnout 4.

[0085] The China Railway CTCS system collects information on the lateral direction of turnout 4, controls turnout 2 to open the lateral direction, blocks the path through the lateral direction of turnout 2 and the track section where turnout 2 is located, and controls the GTYXSFCJ relay to be energized and pulled up; at this time, the metro CBTC system collects power information through the power information receiving terminal to obtain the energized or de-energized state of the GTYXSFCJ relay.

[0086] The subway CBTC system receives the excitation and energizing information of the GTYXSFCJ relay and controls the SD1 signal to send the SD1 signal. The up-line cross-line train receives the SD1 signal and runs across the national railway line via turnout 4 and turnout 2 respectively.

[0087] It should be noted that the subway CBTC system receives power information through the power information receiving terminal in the following ways: the power information output terminal is connected to the middle contact of the first group of contacts of the GTYXSFCJ relay contact system, and the power information receiving terminal is connected to the front contact of the first group of contacts of the GTYXSFCJ relay contact system. When the GTYXSFCJ relay is energized, the middle contact and the front contact of the first group of contacts of the GTYXSFCJ relay contact system are connected.

[0088] Furthermore, when the up-line crossover train receives the SD1 signal and crosses the national railway line via turnout 4 and turnout 2, the metro CBTC system collects data through the metro transponder and metro axle counting equipment to detect that the up-line crossover train is running on the national railway line via arrival / departure track 2G and turnout 4. When the front of the up-line crossover train leaves the jurisdiction of the metro CBTC system, the metro CBTC system terminates its control over the up-line crossover train.

[0089] When a cross-line train is performing cross-line operations and is a down-line train, it runs from National Railway Station A through the connecting station to Metro Station C. When the down-line cross-line train is detected running towards arrival / departure track 1G, the National Railway CTCS system controls turnout 1 to open the lateral direction and outputs a DC24 voltage signal through the controllable drive power output terminal to excite and pull up the turnout 1-FBJ relay, and the down-line cross-line train runs towards turnout 1 on the National Railway line.

[0090] The metro CBTC system collects the lateral direction information of turnout 1, controls turnout 3 to open the lateral direction, and controls the DTYXXJCJ relay to be energized and pulled up. At this time, the China Railway CTCS system collects power information through the power information receiving terminal to obtain the pulled up or dropped state of the DTYXXJCJ relay.

[0091] The China Railway CTCS system collects the excitation and energizing information of the DTYXXJCJ relay, controls the X signal to send the X signal, and the downline cross-line train receives the X signal and runs across the subway line via turnout 1 and turnout 3 respectively.

[0092] It should be noted that the China Railway CTCS system receives power information through the power information receiving terminal in the following ways: the power information output terminal is connected to the middle contact of the first group of contacts of the DTYXXJCJ relay contact system, and the power information receiving terminal is connected to the front contact of the first group of contacts of the DTYXXJCJ relay contact system. When the DTYXXJCJ relay is energized, the middle contact and the front contact of the first group of contacts of the DTYXXJCJ relay contact system are connected.

[0093] Furthermore, when the downline cross-line train receives the X signal and runs across the arrival / departure line 1G via turnout 1 and turnout 3, after the head of the downline cross-line train passes the insulating joint in the lateral direction of turnout 1 and leaves the jurisdiction of the China Railway CTCS system, the China Railway CTCS system terminates its control over the downline cross-line train.

[0094] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, 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, and should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A train control method based on relay information interaction, characterized in that, include: Step 1: Determine whether the cross-line train is performing cross-line operations; Step 2: If the cross-line operation is performed, determine whether the cross-line train is an up-line cross-line train or a down-line cross-line train. If the cross-line train is the up-line cross-line train, proceed to Step 3; if the cross-line train is the down-line cross-line train, proceed to Step 4. Step 3: If it is the aforementioned up-line crossover train, the metro CBTC system controls the fourth switch to open the lateral direction, and the up-line crossover train runs towards the fourth switch on the metro line; The China Railway CTCS system collects the lateral direction information of the fourth turnout, controls the lateral direction of the second turnout, and controls the first relay to be energized and pulled up. The metro CBTC system collects the excitation and energizing information of the first relay, controls the metro signal to send the first signal, and the up-line cross-line train receives the first signal and runs across the national railway line via the fourth turnout and the second turnout respectively. Step 4: If it is the downline cross-line train, the China Railway CTCS system controls the first turnout to open the lateral direction, and the downline cross-line train runs on the China Railway line toward the first turnout; The subway CBTC system collects the lateral direction information of the first turnout, controls the lateral direction of the third turnout, and controls the second relay to be energized and pulled up. The China Railway CTCS system collects the excitation and energizing information of the second relay, controls the China Railway signal to send the second signal, and the downline cross-line train receives the second signal and runs across the subway line via the first switch and the third switch respectively.

2. The train control method based on relay information interaction according to claim 1, characterized in that, When the up-line cross-line train is detected to be running to the first arrival / departure track, the metro CBTC system controls the fourth turnout to open the lateral direction.

3. The train control method based on relay information interaction according to claim 1, characterized in that, In step 3, controlling the opening of the second turnout in the lateral direction and controlling the excitation and energization of the first relay includes: controlling the opening of the second turnout in the lateral direction, locking the route through the lateral direction of the second turnout and the track section where the second turnout is located, and controlling the excitation and energization of the first relay.

4. The train control method based on relay information interaction according to claim 1, characterized in that, The metro CBTC system collects data from metro transponders and metro axle counting equipment to detect when the up-line crossover train travels along the first arrival / departure track and the fourth turnout to the national railway line. Once the locomotive of the up-line crossover train leaves the jurisdiction of the metro CBTC system, the metro CBTC system terminates its control over the up-line crossover train.

5. The train control method based on relay information interaction according to claim 1, characterized in that, When the downline cross-line train is detected moving toward the second arrival / departure track, the China Railway CTCS system controls the opening direction of the first turnout.

6. The train control method based on relay information interaction according to claim 1, characterized in that, In step 4, controlling the opening of the third turnout in the lateral direction and controlling the excitation of the second relay includes: controlling the opening of the third turnout in the lateral direction, determining the running route from the third turnout to the second arrival / departure line, and controlling the excitation of the second relay.

7. The train control method based on relay information interaction according to claim 1, characterized in that, When the head of the downline cross-track train passes the insulating joint in the lateral direction of the first turnout and leaves the jurisdiction of the China Railway CTCS system, the China Railway CTCS system terminates its control over the downline cross-track train.

8. The train control method based on relay information interaction according to claim 1, characterized in that, The signal relay is energized and activated by outputting a voltage signal through the output terminal of the controllable drive power supply.

9. The train control method based on relay information interaction according to claim 1, characterized in that, Power information is collected by the power information receiving terminal to obtain the energized or de-energized states of the first and second relays.

10. A train control method based on relay information interaction according to claim 9, characterized in that, The power acquisition output terminals are connected to the middle contacts of the first group of contacts in the relay contact system, and the power acquisition information receiving terminals are connected to the front contacts of the first group of contacts in the relay contact system. When any relay is energized, the middle contacts and the front contacts of the first group of contacts in the relay contact system are connected.

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