Feedback transponder transmission system and transmission method

Abstract

The invention discloses a feedback transponder transmission system. The transmission system is respectively connected with a vehicle-mounted host unit and a train control center signal interface; the transmission system comprises ground equipment which is in signal connection with a train control center and is used for receiving message information from the train control center; the message information comprises related data of train operation and generated running permission; and the vehicle-mounted equipment is arranged on the train, is in signal connection with the ground equipment and the vehicle-mounted host unit respectively, receives the message information from the ground equipment and transmits the message information to the vehicle-mounted host unit. The method has the advantages that the train operation safety guarantee is enhanced, and the pressure of train transportation commanding and dispatching levels is relieved.

Description

Technical Field

[0001] The present invention relates to the field of train information transmission, and in particular to a feedback transponder transmission system and a transmission method. Background Art

[0002] With the development of high-speed railways, the speed of trains and the intervals between trains need to be further precisely controlled. As the basic equipment for train operation, the balise system provides many conveniences during train operation. However, how to design a good balise transmission system to solve the transportation safety issues caused by repeated information transmission during train operation has become a problem that needs to be solved urgently. Summary of the invention

[0003] The purpose of the present invention is to provide a feedback transponder transmission system and transmission method, which have the advantages of enhancing the safety of train operation and alleviating the pressure at the level of train transportation command and dispatch.

[0004] To achieve the above-mentioned purpose, the present invention provides a feedback transponder transmission system, wherein the transmission system communicates with the on-board host unit and the train control center through a signal interface respectively; the on-board host unit is arranged on the train and is used to control the train operation; the train control center is used to collect message information; the message information includes relevant data of the train operation and generates a driving permit; the transmission system transmits the message information to the on-board host unit, and the on-board host unit controls the train according to the message information; the transmission system includes: a ground device, which is connected to the train control center by signal and is used to receive the message information from the train control center; an on-board device, which is arranged on the train and is connected to the ground device and the on-board host unit by signal respectively, receives the message information from the ground device, and transmits it to the on-board host unit.

[0005] Preferably, the ground equipment includes: a number of trackside electronic units, which are arranged on the train running path and connected to the train control center signal, and are used to receive message information from the train control center; a number of active transponders, which are arranged on the train running path and connected to the corresponding trackside electronic units signal, and receive message information from the trackside electronic units, and can realize data interaction with the on-board equipment and transmit the message information to the on-board equipment.

[0006] Preferably, one active transponder is only configured to correspond to one trackside electronic unit; one trackside electronic unit may be configured to correspond to a plurality of different active transponders.

[0007] Preferably, one trackside electronic unit is provided corresponding to four active balises.

[0008] Preferably, the ground equipment also includes: a plurality of passive transponders, which are arranged on the train running path, pre-store message information, can realize data interaction with the on-board equipment, and transmit the message information to the on-board equipment.

[0009] Preferably, the vehicle-mounted device includes: an antenna unit, which can generate a radio frequency to activate the active / passive transponder, so that the antenna unit receives message information from the active / passive transponder; a transponder transmission module, which receives the message information from the antenna unit, converts it into information readable by the vehicle-mounted host unit, and transmits it to the vehicle-mounted host unit.

[0010] Preferably, the information transmission interface between the active / passive transponder and the antenna unit includes: an interface for pre-connection of the active / passive transponder and the antenna unit; an interface for the antenna unit to transmit radio frequency to the active / passive transponder; and an interface for message information interaction between the antenna unit and the active / passive transponder.

[0011] Preferably, the information transmission interface between the trackside electronic unit and the active transponder includes: an interface for pre-connection of the trackside electronic unit and the active transponder; an interface for message information exchange between the trackside electronic unit and the active transponder; and an interface for the trackside electronic unit to provide power to the active transponder.

[0012] Preferably, the information transmission interface between the wayside electronic unit and the train control center includes: an interface for pre-connection of equipment between the wayside electronic unit and the train control center, and an interface for message information exchange between the wayside electronic unit and the train control center.

[0013] Preferably, the information transmission interface between the trackside electronic unit and the active transponder also includes: an interface for the active transponder and the trackside electronic unit to exchange data related to the return to calibration function.

[0014] Preferably, the trackside electronic unit is provided with a return-to-calibration function module; after the antenna unit activates the active transponder and receives the message information, the active transponder generates a signal indicating that the train has received the message information, and sends it to the return-to-calibration function module in the trackside electronic unit for processing; after the return-to-calibration function module obtains the signal, the trackside electronic unit transmits the internally stored message information invalidation instruction to the active transponder, and the message information in the active transponder that has been received by the antenna unit is invalidated.

[0015] Preferably, the active transponder is arranged at the station entrance and exit to provide the vehicle-mounted equipment with vehicle route parameters and temporary speed limit information.

[0016] Preferably, the passive transponder is arranged at the entrance of the block section and at the entry and exit ends of the station to transmit the block section length, line speed, line slope and train positioning information to the on-board equipment.

[0017] A transmission method based on a feedback transponder transmission system is implemented by a feedback transponder transmission system as described above, and the method comprises: step S1, a trackside electronic unit receives message information from a train control center and transmits it to an active transponder, and the active transponder stores real-time data information; the real-time data information includes message information; step S2, the active transponder detects whether there is a radio frequency emitted by an antenna unit, and if so, enters step S3; if not, returns to step S1; step S3, the active transponder sends corresponding message information to the antenna unit, the antenna unit receives the relevant message information and transmits it to the transponder transmission module, the transponder transmission module converts it into information readable by a vehicle-mounted host unit, and sends the corresponding message information to the vehicle-mounted host unit; step S4, the active transponder sends a signal to the trackside electronic unit that a train passes through the transponder and receives the message information, and after the trackside electronic unit is confirmed by the return function module, the trackside electronic unit transmits the invalid message information instruction pre-stored internally to the active transponder, and the corresponding message information in the active transponder is invalidated; step S5, returns to step S1.

[0018] Preferably, the return period of step S2 is set synchronously with the passing frequency of the train or the arrival time of the train.

[0019] A computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the transmission method based on the feedback transponder transmission system as described above is implemented.

[0020] An electronic device comprises a processor and a memory, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the transmission method based on the feedback transponder transmission system as described above is implemented.

[0021] In summary, compared with the prior art, the feedback transponder transmission system and transmission method provided by the present invention have the following beneficial effects:

[0022] First, a signal return calibration mechanism is added to the trackside electronic unit to address the potential safety risks caused by the repeated use of an active transponder message by multiple vehicles under special scenario conditions.

[0023] Second, the present invention has clear principles, is based on the mechanisms and principles of existing equipment, has a small implementation scope, and has controllable costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of a feedback transponder transmission system provided by the present invention.

[0025] Figure 2 It is a schematic diagram of a specific application scenario of the present invention.

[0026] Figure 3 The present invention is a flow chart of a transmission method based on a feedback transponder transmission system.

[0027] Reference numerals:

[0028] 1- transponder transmission module, 2- antenna unit, 3- active transponder, 4- trackside electronic unit, 5- passive transponder. DETAILED DESCRIPTION

[0029] The following will be combined with the attached embodiment of the present invention Figure 1 ~Attached Figure 3 , the technical solutions, structural features, objectives achieved and effects in the embodiments of the present invention are described in detail.

[0030] It should be noted that the drawings are in a very simplified form and use non-precise proportions. They are only used to conveniently and clearly assist in explaining the embodiments of the present invention, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention.

[0031] It should be noted that, in the present invention, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only the elements explicitly listed, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] The present invention provides a feedback transponder transmission system, such as Figure 1As shown, the transmission system communicates with the on-board host unit and the train control center through signal interfaces respectively; wherein, the on-board host unit is arranged on the train and is an important device for controlling the operation of the train; the train control center is an important device responsible for collecting the relevant data of the train operation and generating the driving permit; and the function of the transmission system is to transmit the relevant data of the train operation collected by the train control center and the driving permit generated to the on-board host unit, and then the on-board host unit controls the train according to the collected relevant data of the train operation and the driving permit. In this process, how the train control center obtains the relevant data of the train operation, how the train control center generates the driving permit, and how the on-board host unit controls the train operation according to the driving permit are all existing technologies and will not be elaborated here.

[0033] The present invention provides a feedback transponder transmission system, the transmission system comprising:

[0034] Ground equipment, connected to the train control center by signal, used to receive message information from the train control center; wherein the message information refers to the relevant data of train operation and the generated driving permit;

[0035] The on-board equipment is installed on the train and is respectively connected to the ground equipment and the on-board host unit by signals. It receives message information from the ground equipment and transmits it to the on-board host unit.

[0036] Specifically, the ground equipment includes:

[0037] Several line side electronic units 4 (LEU) are arranged on the train running path and are connected to the train control center for receiving message information from the train control center;

[0038] Several active transponders 3 are arranged on the train running path, connected with the corresponding trackside electronic units 4 by signal, receive message information from the trackside electronic units 4, realize data interaction with the on-board equipment, and transmit the message information to the on-board equipment; wherein the corresponding mode of the active transponder 3 and the trackside electronic unit 4 is that one active transponder 3 is only arranged corresponding to one trackside electronic unit 4, that is, one active transponder 3 can only receive message information from one trackside electronic unit 4, but one trackside electronic unit 4 can be arranged corresponding to multiple different active transponders 4, that is, one trackside electronic unit 4 can send corresponding message information to multiple different active transponders 3; under normal configuration, one trackside electronic unit 4 can send message information to four active transponders 3 at the same time.

[0039] In a preferred embodiment, the ground equipment further comprises:

[0040] A number of passive transponders 5 are arranged on the train running path, and message information is pre-stored. They can realize data interaction with the on-board equipment and transmit the message information to the on-board equipment. It should be clearly pointed out here that the passive transponder 5 is not connected to the train control center, but only pre-stores the corresponding message information; such as emergency switch information, speed limit ramp information, train positioning information, etc.; in essence, it still belongs to the transmission of relevant data of train operation and the generation of driving permits, but this type of transmission is not the real-time transmission of message information from the train control center, but the transmission of a historical and inherent message information.

[0041] Regarding active transponders 3 and passive transponders 5; active transponders 3 are set at the station entrance and exit, and provide the on-board equipment with information such as vehicle access parameters and temporary speed limits; passive transponders 5 are set at the block section entrance and the station entrance and exit, and are used to transmit information such as the block section length, line speed, line slope, and train positioning to the on-board equipment. The similarity between active transponders 3 and passive transponders 5 is that both transmit message information; the difference is that one transmits inherent message information, and the other transmits variable real-time message information.

[0042] As mentioned above, "data interaction can be achieved with the on-board equipment, and message information can be transmitted to the on-board equipment"; because the train moves on the track, the on-board equipment cannot always maintain a signal connection with a single active transponder 3 or passive transponder 5, so the active / passive transponder is in a silent state under normal circumstances, and data interaction can only be performed when it needs to receive external signals. Therefore, this embodiment adopts a secure point-type information transmission method to achieve data interaction; in this case, the on-board equipment includes:

[0043] Antenna unit 2, the antenna unit 2 can generate radio frequency to activate the active / passive transponder, so as to enable the antenna unit 2 to receive the message information from the active / passive transponder; generally speaking, this activation is started when the train passes the active / passive transponder; that is, when the train passes the passive transponder 5, the passive transponder 5 receives the electromagnetic energy emitted by the antenna unit 2, converts it into electrical energy, and sends out the message information stored in the passive transponder 5 until the electrical energy disappears (that is, the antenna unit 2 has moved away from the passive transponder 5 as the train moves). When the train passes the active transponder 3, the active transponder 3 receives the electromagnetic energy emitted by the antenna unit 2, converts it into electrical energy, and sends out the message information stored in the active transponder 3 until the electrical energy disappears (that is, the antenna unit 2 has moved away from the active transponder 3 as the train moves).

[0044] The transponder transmission module 1 (BTM) is signal-connected to the antenna unit 2. The transponder transmission module 1 receives the message information from the antenna unit 2, converts it into information readable by the vehicle-mounted host unit, and transmits it to the vehicle-mounted host unit; at this time, the entire message information transmission process is completed.

[0045] In this secure point information transmission mode, the train can only obtain message information (whether inherent or variable) from the train control center when the train passes through an active / passive transponder and the antenna unit 2 activates the corresponding active / passive transponder.

[0046] Furthermore, interface "A" is an information transmission interface between the active / passive transponder and the antenna unit 2. This interface adopts electromagnetic induction and is used for data transmission between ground equipment and vehicle-mounted equipment. Interface "A" is functionally divided into three sub-interfaces: "A1", "A4" and "A5":

[0047] (1) Interface "A1" is an interface for pre-connection between the active / passive transponder and the antenna unit 2. That is, before the active / passive transponder and the antenna unit 2 interact with each other, the active / passive transponder sends a device-level connection request to the antenna unit 2 to establish a connection relationship between the two devices at the device level.

[0048] (2) Interface "A4" is the interface for transmitting radio frequency from antenna unit 2 to active / passive transponder for operation of active / passive transponder;

[0049] (3) Interface "A5" is an interface for data exchange related to message information between the antenna unit 2 and the active / passive transponder; for example, when the antenna unit 2 uses electromagnetic induction to write message information to the passive transponder 5 or to write message information to the active transponder 3, the data exchange interface.

[0050] Interface "C" is the information transmission interface between the trackside electronic unit 4 and the active transponder 3. The trackside electronic unit 4 obtains message information from the train control center and transmits it to the active transponder 3 through interface "C". The active transponder 3 transmits the information to the passing vehicle-mounted equipment. Interface "C" is functionally divided into the following three sub-interfaces: "C1", "C2" and "C6":

[0051] (1) Interface "C1" is the interface for the trackside electronic unit 4 and the active balise 3 to connect the equipment in advance;

[0052] (2) Interface "C2" is the interface for data exchange between the trackside electronic unit 4 and the active transponder 3 related to message information;

[0053] (3) Interface “C6” is the interface through which the trackside electronic unit 4 provides power to the interface “C” circuit of the active transponder 3.

[0054] Interface "S" is the interface between the trackside electronic unit 4 and the train control center, including two sub-interfaces:

[0055] (1) The interface for the trackside electronic unit 4 to connect with the train control center in advance;

[0056] (2) The interface for data exchange related to message information between the trackside electronic unit 4 and the train control center.

[0057] For example, Figure 2 As shown, BX and BS are active transponders, and X1, X2, X3, S1, S2, and S3 are track section identifiers. When the route ahead of train 1 is X1-S1 or X1-S2, it will pass through active transponder BX. Therefore, the train control center will transmit the corresponding route parameters (the route corresponding to X1-S1 or X1-S2), temporary speed limit and other information to the active transponder BX through the trackside electronic unit in advance. Then, when train 1 passes through active transponder BX, the antenna unit sends out a radio frequency to activate the active transponder BX, so that the on-board host unit can obtain the message information. Similarly, the train control center continues to arrange the relevant message information of train 2, and according to the plan, the subsequent train 2 passes through the active transponder BX to transmit the same message information as train 1, so as to achieve the time and space matching consistency between the dispatching transportation demand and the equipment execution level.

[0058] Therefore, logically, for the active balise 3, the message is equivalent to one car one authorization, one car one message. When train 1 completes passing through the active balise BX, the train control center will re-process the route for the subsequent train 2 according to the train operation plan.

[0059] However, due to the characteristics of the secure point information transmission mode, the train's onboard equipment and the active transponder 3 are essentially loosely coupled, that is, the antenna unit 2 and the active transponder 3 have a low degree of mutual dependence. When the train command or running interval control strategy changes, the train may receive ground message data from the active transponder 3 that does not belong to the train.

[0060] For example, in the above situation, if the message information sent by the train control center to train 1 is received again by train 2, there may be a risk of collision between train 1 and train 2 in extreme cases. Figure 2As shown, train 1 receives the relevant message information of the active balise BX, but train 1 stops on the common track in front of X1-S1 and X1-S2 due to a fault; at this time, train 1 is not detected by the rear track of X1-S1 and X1-S2, and the train control center will think that train 1 has not entered the corresponding route, which causes the message information in the active balise BX to still belong to train 1. At this time, if the train control center fails to find that the running status of train 1 is abnormal and does not intervene in the processing of train 1 in time, but train 2 arrives earlier than planned, train 2 will receive the message information originally belonging to train 1, and there is a risk of repeated use of routes and train conflicts.

[0061] In order to prevent the above situation from happening, the present invention adds a return function module with a return function in the trackside electronic unit 4; as mentioned above, when the antenna unit 2 activates the active transponder 3 and completes the transmission, the active transponder 3 will generate a signal of a train receiving message information, and send it to the return function module in the trackside electronic unit 4 for processing. After the return function module obtains the data, the trackside electronic unit 4 transmits the message information invalidation instruction containing "reset the corresponding message information to invalid" stored inside to the active transponder 3. The route available message information of the corresponding original train 1 in the active transponder 3 is also invalid; thereby preventing the train 2 from receiving the message information originally belonging to the train 1, and there is a risk of train conflict caused by repeated use of the route.

[0062] In order to correspond to the data transmission in the aforementioned return-to-calibration function module, the interface "C" here also includes: interface "C4" is an interface for the active transponder 3 and the trackside electronic unit 4 to exchange data related to the return-to-calibration function after the antenna unit 2 passes through the active transponder 3 and completes the transmission;

[0063] Based on the above scenario analysis, Figure 3 As shown, the present invention also proposes a transmission method based on a feedback transponder transmission system, which ensures the unique matching of message information received by the train, strengthens the safety of train operation in safe point information transmission, and alleviates the pressure at the train transportation command and dispatch level.

[0064] The method comprises:

[0065] Step S1, the trackside electronic unit 4 receives the relevant data of the train operation and the generated driving permission (i.e., message information) from the train control center, and transmits it to the active transponder 3, and the active transponder 3 stores the real-time data information;

[0066] Step S2, the active transponder 3 detects whether the radio frequency emitted by the antenna unit 2 exists, and if so, proceeds to step S3; if not, returns to step S1;

[0067] The return period of this step can be set as needed, and is not limited here; specifically, it can be set synchronously according to the passing frequency of the train or in synchronization with the time when the train enters the station;

[0068] Step S3, the active transponder 3 sends corresponding message information to the antenna unit 2, the antenna unit 2 receives the relevant message information and transmits it to the transponder transmission module 1, the transponder transmission module 1 converts it into information readable by the vehicle host unit, and sends the corresponding message information to the vehicle host unit;

[0069] Step S4, the active transponder 3 sends a signal to the trackside electronic unit 4 that the train passes through the transponder and receives the message information. After the trackside electronic unit 4 is confirmed by the return function module, the trackside electronic unit 4 transmits the message information invalidation instruction pre-stored inside to the active transponder 3, and the corresponding message information in the active transponder 3 is invalidated;

[0070] At this time, step S4 must be performed after step S3 is completed, rather than in parallel or with a synchronization interval; because if step S3 is performed when the corresponding message information is not transmitted, the return function module of the trackside electronic unit 4 will be operated, which will cause part of the message information to be invalidated in advance;

[0071] Step S5, returns to step S1; thus a cycle is realized.

[0072] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. A feedback transponder transmission system, It is characterized in that The transmission system communicates with the vehicle-mounted host unit and the train control center through signal interfaces respectively; The on-board host unit is arranged on the train and is used to control the operation of the train; The train control center is used to collect message information; the message information includes relevant data of train operation and generates driving permit; The transmission system transmits the message information to the on-board host unit, and the on-board host unit controls the train according to the message information; The transmission system comprises: Ground equipment, connected to the train control center signal, used to receive message information from the train control center; The on-board device is installed on the train and is connected to the ground device and the on-board host unit by signals. It receives message information from the ground device and transmits it to the on-board host unit.

2. A feedback transponder transmission system according to claim 1, It is characterized in that The ground equipment includes: Several trackside electronic units are installed on the train running path and connected to the train control center signal to receive message information from the train control center; Several active transponders are set up on the train running path, connected to the corresponding trackside electronic unit signals, receive message information from the trackside electronic unit, and can realize data interaction with the on-board equipment and transmit the message information to the on-board equipment.

3. A feedback transponder transmission system according to claim 2, It is characterized in that One active balise is only set up corresponding to one trackside electronic unit; A trackside electronic unit can be configured to correspond to a number of different active balises.

4. A feedback transponder transmission system according to claim 3, It is characterized in that One trackside electronic unit is configured with four active balises.

5. A feedback transponder transmission system according to claim 4, It is characterized in that The ground equipment also includes: Several passive transponders are installed on the train running path, which store message information in advance and can realize data interaction with the on-board equipment and transmit the message information to the on-board equipment.

6. A feedback transponder transmission system according to claim 5, It is characterized in that The vehicle-mounted equipment includes: An antenna unit, wherein the antenna unit can generate a radio frequency for activating an active / passive transponder, so that the antenna unit can receive message information from the active / passive transponder; The transponder transmission module receives the message information from the antenna unit, converts it into information readable by the vehicle-mounted host unit, and transmits it to the vehicle-mounted host unit.

7. A feedback transponder transmission system according to claim 6, It is characterized in that The information transmission interface between the active / passive transponder and the antenna unit includes: Interface for pre-connection of active / passive transponder and antenna unit; An interface for transmitting radio frequency from the antenna unit to the active / passive transponder; The interface for the antenna unit to exchange message information with the active / passive transponder.

8. A feedback transponder transmission system according to claim 7, It is characterized in that The information transmission interface between the trackside electronic unit and the active transponder includes: Interface for early equipment connection between the trackside electronic unit and the active balise; Interface for the exchange of message information between the trackside electronic unit and the active balise; Interface for the wayside electronics unit to provide power to the active balise.

9. A feedback transponder transmission system according to claim 8, It is characterized in that The information transmission interface between the wayside electronic unit and the train control center includes: an interface for advance equipment connection between the wayside electronic unit and the train control center, and an interface for message information exchange between the wayside electronic unit and the train control center.

10. A feedback transponder transmission system according to claim 9, It is characterized in that The information transmission interface between the trackside electronic unit and the active transponder also includes: an interface for the active transponder and the trackside electronic unit to exchange data related to the return to calibration function.

11. A feedback transponder transmission system according to claim 10, It is characterized in that The trackside electronic unit is provided with a return-to-calibration function module; After the antenna unit activates the active transponder and receives the message information, the active transponder generates a signal indicating that the train has received the message information and sends it to the return-to-calibration function module in the trackside electronic unit for processing. After the return-to-calibration function module obtains the signal, the trackside electronic unit transmits the internally stored message information invalidation instruction to the active transponder, and the message information in the active transponder that has been received by the antenna unit is invalidated.

12. A feedback transponder transmission system according to claim 11, It is characterized in that The active transponder is arranged at the station entrance and exit to provide the vehicle-mounted equipment with vehicle route parameters and temporary speed limit information.

13. A feedback transponder transmission system according to claim 12, It is characterized in that The passive transponder is arranged at the entrance of the block section and the entry and exit ends of the station to transmit the block section length, line speed, line slope and train positioning information to the on-board equipment.

14. A transmission method based on a feedback transponder transmission system, It is characterized in that The method is implemented by using a feedback transponder transmission system as described in any one of claims 1 to 13, and comprises: Step S1, the trackside electronic unit receives message information from the train control center and transmits it to the active transponder, and the active transponder stores real-time data information; the real-time data information includes message information; Step S2, the active transponder detects whether there is a radio frequency emitted by the antenna unit, and if so, proceeds to step S3; if not, returns to step S1; Step S3, the active transponder sends corresponding message information to the antenna unit, the antenna unit receives the relevant message information and transmits it to the transponder transmission module, the transponder transmission module converts it into information readable by the vehicle host unit, and sends the corresponding message information to the vehicle host unit; Step S4, the active balise sends a signal to the trackside electronic unit indicating that a train has passed through the balise and received message information. After confirmation by the return-to-calibration function module, the trackside electronic unit transmits the message information invalidation instruction pre-stored inside to the active balise, and the corresponding message information in the active balise is invalidated; Step S5, return to step S1.

15. A transmission method based on a feedback transponder transmission system according to claim 14, It is characterized in that The return cycle of step S2 is set synchronously with the passing frequency of the train or the arrival time of the train.

16. A computer-readable storage medium having a computer program stored thereon, It is characterized in that When the computer program is executed by a processor, the transmission method based on a feedback transponder transmission system as described in any one of claims 14 to 15 is implemented.

17. An electronic device, It is characterized in that It comprises a processor and a memory, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, a transmission method based on a feedback transponder transmission system as described in any one of claims 14 to 15 is implemented.

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