Railway circuit, control method and device for railway circuit

Abstract

The application provides a track circuit, a control method and device of the track circuit, which comprises interlocking equipment, a first relay, a second relay and a collection power supply; a first input end of the interlocking equipment is connected with a front contact point of the first relay, and a second input end of the interlocking equipment is connected with a rear contact point of the first relay and a rear contact point of the second relay respectively; a middle contact point of the first relay is connected with a front contact point of the second relay, and a middle contact point of the second relay is connected with the collection power supply; a front contact point of the first relay is connected with the middle contact point of the first relay, and a front contact point of the second relay is connected with the middle contact point of the first relay; the first relay is arranged in a first track section, the second relay is arranged in a second track section, and the first track section and the second track section are located at two ends of a track section where a car washing garage is located; and the interlocking equipment is used for determining section occupancy information of a target track section based on a state of the first relay and a state of the second relay.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rail transit, and in particular to a track circuit, a control method and device thereof. BACKGROUND

[0002] In the construction of urban rail transit signal system, with the increasing degree of automation, the traditional field section manual operation task is gradually handed over to the signal system to complete. The traditional field section car washing operation is manually washed, and for the field section of automatic car washing, due to the slippery track in the car washing garage, the track circuit cannot be laid in the car washing machine. Generally, axle counting equipment is used as track section occupation detection equipment, which has higher cost compared with track circuit. If track circuit is used as track section occupation detection equipment, it will lead to incomplete section identification of the system, and the regional controller cannot send train movement authority to pass through the car washing area, resulting in the train stopping in front of the car washing garage, so that the train cannot be normally automatically washed. SUMMARY

[0003] The present application provides a track circuit, a control method and device thereof, to solve the problem that the automatic car washing field section uses track circuit for track section occupation detection, which leads to the problem that automatic car washing cannot be normally performed.

[0004] The present application provides a track circuit, comprising:

[0005] An interlocking device, a first relay, a second relay and a collection power supply;

[0006] The first input end of the interlocking device is connected with the front contact point of the first relay, and the second input end of the interlocking device is connected with the rear contact point of the first relay and the rear contact point of the second relay respectively;

[0007] The middle contact point of the first relay is connected with the front contact point of the second relay, and the middle contact point of the second relay is connected with the collection power supply;

[0008] The front contact point of the first relay is connected with the middle contact point of the first relay, and the front contact point of the second relay is connected with the middle contact point of the first relay;

[0009] The first relay is arranged in a first track section, the second relay is arranged in a second track section, and the first track section and the second track section are located at both ends of a track section where the car washing garage is located;

[0010] The interlocking device is used to determine the section occupation information of a target track section based on the state of the first relay and the state of the second relay, and the target track section includes the first track section and the second track section.

[0011] In some embodiments, the section occupancy information of the target track section is that the communication train is not occupied, in the case that both the first relay and the second relay are in the released state.

[0012] In the case that the first relay or the second relay is in the attracted state, the section occupancy information of the target track section is that the communication train is occupied.

[0013] In some embodiments, the interval from the first wheel pair to the last wheel pair of the train running on the target track section is greater than the section length between the first track section and the second track section.

[0014] In some embodiments, the section length of the first track section is greater than the minimum wheel pair interval of the train running on the target track section, and the section length of the second track section is greater than the minimum wheel pair interval.

[0015] The present application provides a control method of a track circuit, applied to the track circuit as described above, and the method comprises:

[0016] In the case that the train is running on the target track section, obtaining the section occupancy information detected by the trackside device;

[0017] Based on the section occupancy information detected by the trackside device, controlling the state of the first relay and the state of the second relay, so that the interlocking device obtains the section occupancy information of the target track section in the case that the state of the first relay and the state of the second relay are identified.

[0018] In some embodiments, the controlling the state of the first relay and the state of the second relay based on the section occupancy information detected by the trackside device comprises:

[0019] In the case that the section occupancy information detected by the trackside device is that the communication train occupies the first track section, controlling the first relay to be in the attracted state;

[0020] In the case that the section occupancy information detected by the trackside device is that the communication train does not occupy the second track section, controlling the second relay to be in the released state.

[0021] The present application also provides a control device of a track circuit, applied to the track circuit as described above, and the device comprises:

[0022] The obtaining module is configured to, in the case that the train is running on the target track section, obtain the section occupancy information detected by the trackside device;

[0023] A control module is configured to control the state of the first relay and the state of the second relay based on the section occupancy information detected by the wayside device, so that the interlocking device obtains the section occupancy information of the target track section when the state of the first relay and the state of the second relay are identified.

[0024] The application further provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the control method of the track circuit according to any one of the above when executing the program.

[0025] The application further provides a non-transitory computer readable storage medium, which stores a computer program, and the computer program implements the control method of the track circuit according to any one of the above when executed by a processor.

[0026] The application further provides a computer program product, which includes a computer program, and the computer program implements the control method of the track circuit according to any one of the above when executed by a processor.

[0027] The application provides the track circuit, the control method and the device of the track circuit, the first relay and the second relay are arranged at the first track section and the second track section at the two ends of the track section where the car wash is located, the track circuit is used as a track section occupancy detection device, the interlocking device can obtain the section occupancy information of the target track section based on the state of the first relay and the state of the second relay, so that the movement authorization of the train passing through the car wash can be calculated normally, the train can pass through the car wash normally and the function of automatic car washing can be realized, and the construction cost of the field section can be effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort.

[0029] Figure 1 is one of the structural schematic diagrams of the track circuit provided by the application;

[0030] Figure 2 is the second structural schematic diagram of the track circuit provided by the application;

[0031] Figure 3 is the scene schematic diagram of the track circuit provided by the application;

[0032] Figure 4is a flowchart of a control method of a track circuit provided by the present application.

[0033] Figure 5 is a structural diagram of a control device of a track circuit provided by the present application.

[0034] Figure 6 is a structural diagram of an electronic device provided by the present application. DETAILED DESCRIPTION

[0035] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below with reference to the drawings in the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0036] The terms "first", "second" in the specification and claims of the present application can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally means that the front and rear associated objects are in an "or" relationship.

[0037] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] The track circuit, the control method and device of the track circuit of the present application will be described below. Figures 1-6

[0039] Figure 1 is one of the structural diagrams of the track circuit provided by the present application. With reference to Figure 1 , the track circuit provided by the present application comprises an interlocking device 110, a first relay 120, a second relay 130 and an acquisition power supply 140.

[0040] The first input end of the interlocking device 110 is connected with the front contact point of the first relay 120, and the second input end of the interlocking device 110 is connected with the rear contact point of the first relay 120 and the rear contact point of the second relay 130 respectively; ​

[0041] The middle contact of the first relay 120 is connected with the front contact of the second relay 130, and the middle contact of the second relay 130 is connected with the collection power supply 140.

[0042] The front contact of the first relay 120 is connected with the middle contact of the first relay 120, and the front contact of the second relay 130 is connected with the middle contact of the first relay 120.

[0043] The first relay 120 is arranged in the first track section, and the second relay 130 is arranged in the second track section.

[0044] The interlocking device 110 is used for determining the section occupancy information of the target track section based on the state of the first relay 120 and the state of the second relay 130, and the target track section includes the first track section and the second track section.

[0045] In actual implementation, since the wet and slippery area in the car washing machine cannot be paved with track circuit, two track sections, i.e., the first track section and the second track section, can be paved before and after the car washing area or at both ends of the track section where the car washing garage is located. Then, one track circuit is used to cover the first track section and the second track section, so that the train entering and leaving the car washing garage can collect the section occupancy information through the track circuit arranged in the first track section and the second track section.

[0046] In the present application, the first relay 120 in the track circuit is arranged in the first track section, and the second relay 130 in the track circuit is arranged in the second track section.

[0047] It should be noted that the first relay 120 and the second relay 130 are both track relays, which are used for reflecting the state of the track.

[0048] The track relay includes a front contact, a middle contact and a rear contact. The middle contact is a moving contact which is started with the armature of the track relay; the front contact is a moving contact which is closed with the armature when the armature is attracted; and the rear contact is a moving contact which is closed after the armature is released.

[0049] Through relay circuit design, the front contact and the middle contact of the first relay 120 corresponding to the first track section are connected in series, and the rear contact is connected in parallel; the front contact and the middle contact of the second relay 130 corresponding to the second track section are connected in series, and the rear contact is connected in parallel.

[0050] When the state of the track relay is the attracted state, the rear contact is disconnected, and the front contact and the middle contact are normally conducted; when the state of the track relay is the released state, the front contact and the middle contact are normally conducted, and the rear contact and the middle contact can be conducted.

[0051] In the present application, the front contact point of the track relay is used to represent that the track section is idle, i.e., the section occupancy information is that the communication train is not occupied; and the rear contact point is used to represent that the track section is occupied, i.e., the section occupancy information is that the communication train is occupied.

[0052] The track signal system processes the first track section, the second track section, and the section between the first track section and the second track section as a target track section. The interlocking device 110 can determine, based on the state of the first relay 120 and the state of the second relay 130, that the section occupancy information of the target track section is that the track section is not occupied or occupied by the communication train.

[0053] As shown in FIG. 1, the first track section 1CG1 and the second track section 1CG2 are respectively laid at the two ends of the track section where the car wash is located. The target track section 1CG is the first track section 1CG1, the second track section 1CG2, and the section between them, where the track circuit is laid. Figure 2

[0054] In the present application, the power supply 140 can be used to supply power to the track circuit. The track circuit on the target track section can realize train occupancy detection through the outdoor section occupancy detection device. After the section occupancy information of the target track section is collected, the first relay 120 or the second relay 130 is driven to be pulled up or pulled down, and the interlocking device 110 can identify the section occupancy information by collecting the state of the first relay 120 or the second relay 130.

[0055] In the present application, the track section where the car wash is located is covered by the track section occupancy detection device, and the movement authority for the train to pass through the car wash can be normally calculated. After the train enters the car washing area, the calculation of the movement authority is consistent with the whole train. The present application mainly sets the track section occupancy detection device in the car wash, so that the track section where the car wash is located can be described in the signal system, thereby ensuring the precondition for calculating the movement authority.

[0056] The track circuit provided by the present application sets the first relay and the second relay in the first track section and the second track section at the two ends of the track section where the car wash is located, uses the track circuit as the track section occupancy detection device, so that the interlocking device can obtain the section occupancy information of the target track section based on the state of the first relay and the state of the second relay, thereby normally calculating the movement authority for the train to pass through the car wash, realizing the function of the train normally passing through the car wash and automatically washing the car, and effectively reducing the construction cost of the field section.

[0057] In some embodiments, in the case that the first relay 120 and the second relay 130 are both in the released state, the section occupancy information of the target track section is that the communication train is not occupied.​

[0058] When the first relay 120 or the second relay 130 is in the attracted state, the section occupancy information of the target track section is occupied by the communication train.

[0059] In actual execution, the front contact point represents that the track section is idle, and the rear contact point represents that the track section is occupied.

[0060] When the first relay 120 and the second relay 130 are in the released state, it indicates that the first relay 120 and the second relay 130 are attracted, the middle contact point and the rear contact point of the first relay 120 are in conductive connection, and the middle contact point and the rear contact point of the second relay 130 are in conductive connection, so it can be considered that the first track section and the second track section are both in an idle state, that is, the section occupancy information of the target track section is not occupied by the communication train.

[0061] When the first relay 120 or the second relay 130 is in the attracted state, it indicates that the first relay 120 or the second relay 130 is dropped, the middle contact point and the rear contact point of the first relay 120 are disconnected, the middle contact point and the front contact point of the first relay 120 are in conductive connection, the middle contact point and the rear contact point of the second relay 130 are disconnected, and the middle contact point and the front contact point of the second relay 130 are in conductive connection, so it can be considered that one of the first track section and the second track section is in an occupied state, that is, the section occupancy information of the target track section is occupied by the communication train.

[0062] In some embodiments, the distance between the first wheel pair and the last wheel pair of the train running on the target track section is greater than the section length between the first track section and the second track section.

[0063] In the related art, for automatic car washing, in the communication based train control system (CBTC) mode, the signal system does not use the state of the track section occupancy detection device as the track section occupancy judgment condition, but uses the position report sent by the train to the zone controller (ZC). When the train is normally washed in the car washing garage, the signal system can correctly judge the position of the train.

[0064] However, in the manual non-CBTC mode or during the automatic train washing process, degradation occurs, which causes the train not to be collected by the track section occupancy detection device. The degraded mode signal system uses the state of the track section occupancy detection device as the track section occupancy judgment condition, which causes the signal system to judge that the train is lost and guide to the dangerous side.

[0065] Since there is a section of track section between the first track section and the second track section, the train passing through the car wash needs to ensure that the distance between the first wheel set and the last wheel set of the train is greater than the length of the section between the first track section and the second track section, so as to avoid the risk of collision due to the fact that the first track section and the second track section are both occupied by the section after the train enters the car wash.

[0066] In some embodiments, the length of the first track section is greater than the minimum wheel set spacing of the train running on the target track section, and the length of the second track section is greater than the minimum wheel set spacing.

[0067] In actual implementation, the length of the first track section and the length of the second track section cannot be less than the minimum wheel set spacing of the train, so as to avoid the case that the second wheel set of the train is in the front section of the first track section or the second track section after the train is pressed into the position without track circuit, resulting in loss of occupation of the first track section or the first track section.

[0068] The track circuit provided by the application will be described below in combination with application scenarios.

[0069] Figure 3 is a second structural diagram of the track circuit provided by the application. Referring to Figure 3 The track circuit provided by the application comprises an interlocking cabinet, an interface cabinet, a first relay GJ1, a second relay GJ2, and a collection power supply IO.

[0070] The first terminal of the interlocking cabinet is connected with the first terminal of the interface cabinet, and the second terminal of the interlocking cabinet is connected with the second terminal of the interface cabinet.

[0071] The first terminal of the interface cabinet is connected with the front contact point of the GJ1, and the second terminal of the interface cabinet is connected with the rear contact point of the GJ1 and the rear contact point of the GJ2 respectively.

[0072] Then the front contact point of the GJ1 is connected with the middle contact point of the GJ1, the middle contact point of the GJ1 is connected with the front contact point of the GJ2, the front contact point of the GJ2 is connected with the middle contact point of the GJ2, and the middle contact point of the GJ2 is connected with the collection power supply.

[0073] The track circuit provided by the application will be described below in combination with application scenarios. Figure 2 and Figure 3 The track circuit provided by the application will be described below in combination with application scenarios.

[0074] When only one GJ falls, the interlocking cabinet can collect the falling state of the relay, indicating that there is one track section occupation between the first track section 1CG1 and the first track section 1CG2, and the entire target track section 1CG is regarded as an occupation.

[0075] When both GJ are attracted, the interlocking cabinet can collect the attracted state of the relay, indicating that both the first track section 1CG1 and the first track section 1CG2 are idle, and the entire target track section 1CG is regarded as idle.

[0076] Figure 4 is a flowchart of the control method of the track circuit provided by the present application. Referring to Figure 4 The control method of the track circuit provided by the present application comprises steps 110 and 120.

[0077] Step 110, in the case where the train is running on the target track section, acquiring the section occupancy information detected by the wayside device;

[0078] Step 120, based on the section occupancy information detected by the wayside device, controlling the state of the first relay and the state of the second relay, so that the interlocking device acquires the section occupancy information of the target track section in the case where the state of the first relay and the state of the second relay are identified.

[0079] The execution subject of the control method of the track circuit provided by the present application can be an electronic device, a component in the electronic device, an integrated circuit, or a chip. The electronic device can be a mobile electronic device or a non-mobile electronic device. Exemplarily, the mobile electronic device can be a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), etc., and the non-mobile electronic device can be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a teller machine, or a self-service machine, etc., which are not limited by the present application.

[0080] The technical solutions of the present application will be described in detail below with the computer executing the control method of the track circuit provided by the present application as an example.

[0081] In actual execution, the wayside device is a track section occupancy detection device, which is used for occupancy detection of the target track section and the track section where the car wash is located.

[0082] When a train runs to the target track section, that is, the train is about to enter or leave the car washing depot, first, the section occupation information detected by the trackside equipment is acquired, after the section occupation information is acquired, the state of the first relay and the state of the second relay are controlled, the track circuit acquires the state, drives the first relay and the second relay to react to the target track section occupation situation, so that the interlocking device can acquire the section occupation information of the target track section under the condition of identifying the state of the first relay and the state of the second relay.

[0083] In some embodiments, step 120 specifically comprises:

[0084] In the case that the section occupation information detected by the trackside equipment is that the communication train occupies the first track section, the first relay is controlled to be in the attracted state;

[0085] In the case that the section occupation information detected by the trackside equipment is that the communication train does not occupy the first track section, the first relay is controlled to be in the released state.

[0086] It can be understood that after the trackside equipment detects the train occupation state, the relay will be driven to fall or be attracted according to the train occupation state. Therefore, in the case that the section occupation information is that the communication train occupies the first track section, the first relay is controlled to fall, that is, the first relay is controlled to be in the attracted state; in the case that the section occupation information is that the communication train does not occupy the first track section, the first relay is controlled to be attracted, that is, the first relay is controlled to be in the released state;

[0087] In the case that the section occupation information is that the communication train occupies the second track section, the second relay is controlled to fall, that is, the second relay is controlled to be in the attracted state; in the case that the section occupation information is that the communication train does not occupy the second track section, the second relay is controlled to be attracted, that is, the second relay is controlled to be in the released state.

[0088] The control method of the track circuit provided by the application can make the interlocking device acquire the section occupation information of the target track section based on the state of the first relay and the state of the second relay, so that the movement authorization of the train passing through the car washing depot can be normally calculated, the train can normally pass through the car washing depot and realize the function of automatic car washing, and the construction cost of the field section can be effectively reduced.

[0089] The control device of the track circuit provided by the application is described below, and the control device of the track circuit described below can be correspondingly referred to the control method of the track circuit described above.

[0090] Figure 5 It is a structural schematic diagram of the control device of the track circuit provided by the application. Refer to Figure 5The track circuit control device provided by the application comprises an acquisition module 510 and a control module 520.

[0091] The acquisition module 510 is configured to acquire section occupancy information detected by a wayside device in the case where a train is running on the target track section.

[0092] The control module 520 is configured to control the state of the first relay and the state of the second relay based on the section occupancy information detected by the wayside device, so that the interlocking device acquires the section occupancy information of the target track section in the case where the state of the first relay and the state of the second relay are identified.

[0093] In some embodiments, the control module 520 is specifically configured to:

[0094] In the case where the section occupancy information detected by the wayside device is that a communication train occupies the first track section, the first relay is controlled to be in an attracted state.

[0095] In the case where the section occupancy information detected by the wayside device is that a communication train occupies the second track section, the second relay is controlled to be in a released state.

[0096] The track circuit control device provided by the application uses a track circuit as a track section occupancy detection device, so that the interlocking device can acquire the section occupancy information of the target track section based on the state of the first relay and the state of the second relay, thereby normally calculating the movement authorization of the train passing through the car washing depot, realizing the function of the train normally passing through the car washing depot and automatically washing the car, and effectively reducing the construction cost of the field section.

[0097] Figure 6 An example of an entity structure diagram of an electronic device is shown in Figure 6 The electronic device can include a processor 610, a communications interface 620, a memory 630, and a communications bus 640, wherein the processor 610, the communications interface 620, and the memory 630 can communicate with each other through the communications bus 640. The processor 610 can invoke the logical instructions in the memory 630 to execute the track circuit control method, which comprises:

[0098] In the case where a train is running on the target track section, the section occupancy information detected by the wayside device is acquired.

[0099] Based on the section occupancy information detected by the wayside device, the state of the first relay and the state of the second relay are controlled, so that the interlocking device obtains the section occupancy information of the target track section when the state of the first relay and the state of the second relay are identified.

[0100] In addition, the logic instructions in the memory 630 described above can be implemented in the form of a software function unit and sold or used as an independent product, and can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application essentially or the part that contributes to the prior art or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

[0101] On the other hand, the present application also provides a computer program product, which comprises a computer program, the computer program can be stored on a non-transitory computer readable storage medium, and the computer program is executed by a processor, so that the computer can execute the control method of the track circuit provided by the above-mentioned methods, and the method comprises:

[0102] When the train is running on the target track section, the section occupancy information detected by the wayside device is obtained;

[0103] Based on the section occupancy information detected by the wayside device, the state of the first relay and the state of the second relay are controlled, so that the interlocking device obtains the section occupancy information of the target track section when the state of the first relay and the state of the second relay are identified.

[0104] On the other hand, the present application also provides a computer program product, which comprises a computer program, the computer program can be stored on a non-transitory computer readable storage medium, and the computer program is executed by a processor, so that the computer can execute the control method of the track circuit provided by the above-mentioned methods, and the method comprises:

[0105] When the train is running on the target track section, the section occupancy information detected by the wayside device is obtained;

[0106] Based on the section occupancy information detected by the trackside device, the state of the first relay and the state of the second relay are controlled, so that the interlocking device obtains the section occupancy information of the target track section when the state of the first relay and the state of the second relay are identified.

[0107] The device embodiments described above are merely illustrative, wherein the units illustrated as separate components can or can not be physically separated, and the components displayed as units can or can not be physical units, i.e., can be located in one place or distributed on multiple network units. Part or all of the modules can be selected to achieve the purpose of the embodiment scheme according to actual needs. Those skilled in the art can understand and implement without creative labor.

[0108] Through the description of the above embodiments, those skilled in the art can clearly understand that the embodiments can be realized by means of software and the necessary general hardware platform, and of course can also be realized by hardware. Based on such understanding, the above technical solutions can be embodied in the form of a software product, which can be stored in a computer readable storage medium, such as a ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the methods described in each embodiment or some parts of the embodiments.

[0109] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A track circuit, characterized in that The interlocking device, a first relay, a second relay and a collection power supply are included. A first input end of the interlocking device is connected with a front contact point of the first relay, and a second input end of the interlocking device is connected with a back contact point of the first relay and a back contact point of the second relay respectively. A middle contact point of the first relay is connected with a front contact point of the second relay, and a middle contact point of the second relay is connected with the collection power supply. A front contact point of the first relay is connected with a middle contact point of the first relay, and a front contact point of the second relay is connected with a middle contact point of the first relay. The first relay is arranged in a first track section, and the second relay is arranged in a second track section, and the first track section and the second track section are located at two ends of a track section where a car wash is located. The interlocking device is used to determine section occupancy information of a target track section based on a state of the first relay and a state of the second relay, and the target track section includes the first track section and the second track section. In a case where the first relay and the second relay are both in a released state, the section occupancy information of the target track section is that a communication train is not occupied. In a case where the first relay or the second relay is in an attracted state, the section occupancy information of the target track section is that a communication train is occupied. A distance between a first wheel pair and a last wheel pair of a train running on the target track section is greater than a section length between the first track section and the second track section.

2. The track circuit according to claim 1, characterized in that A section length of the first track section is greater than a minimum wheel pair distance of the train running on the target track section, and a section length of the second track section is greater than the minimum wheel pair distance.

3. The track circuit according to claim 1, characterized in that The method is applied to the track circuit of any one of claims 1-3, and the method includes:

4. A control method of a track circuit, characterized by, In a case where a train runs on the target track section, obtaining section occupancy information detected by a wayside device; Based on the section occupancy information detected by the wayside device, controlling a state of the first relay and a state of the second relay, so that the interlocking device obtains the section occupancy information of the target track section in a case where the state of the first relay and the state of the second relay are identified; The controlling of the state of the first relay and the state of the second relay based on the section occupancy information detected by the wayside device includes: In a case where the section occupancy information detected by the wayside device is that a communication train occupies the first track section, controlling the first relay to be in the attracted state; In a case where the section occupancy information detected by the wayside device is that a communication train does not occupy the second track section, controlling the second relay to be in the released state. The device is applied to the track circuit of any one of claims 1-3, and the device includes:

5. A control device of a track circuit, characterized by An obtaining module is configured to, in a case where a train runs on the target track section, obtain section occupancy information detected by a wayside device; ​ The control module is configured to control the state of the first relay and the state of the second relay based on the section occupancy information detected by the wayside device, so that the interlocking device obtains the section occupancy information of the target track section when the state of the first relay and the state of the second relay are identified. The control of the state of the first relay and the state of the second relay based on the section occupancy information detected by the wayside device comprises: In a case where the section occupancy information detected by the wayside device indicates that the first track section is occupied by a communication train, the first relay is controlled to be in an attracted state. In a case where the section occupancy information detected by the wayside device indicates that the second track section is not occupied by a communication train, the second relay is controlled to be in a released state.

6. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, The processor implements the control method of the track circuit according to claim 4 when executing the program.

7. A non-transitory computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program implements the control method of the track circuit according to claim 4 when executed by the processor.

8. A computer program product comprising a computer program, characterized in that, The computer program implements the control method of the track circuit according to claim 4 when executed by the processor.

Images