Train temporary speed limit information sending system and method

Abstract

The invention discloses a train temporary speed limit information sending system and a train temporary speed limit information sending method. The train temporary speed limit information sending system comprises radio block center equipment, temporary speed limit server equipment and vehicle-mounted equipment. The radio block center equipment periodically sends authorization information containing idle track section information to the vehicle-mounted equipment; the vehicle-mounted equipment judges whether the received authorization information is updated or not, speed limit request information containing authorized track section information of the train is generated according to the updated authorization information, and the updated speed limit request information is sent to temporary speed limit server equipment; and the temporary speed limit server device calculates speed limit information according to the updated speed limit request information and sends the speed limit information to the vehicle-mounted device. The temporary speed limiting server device generates the speed limiting information according to the train authorization information and the centralized dispatching system, and directly sends the speed limiting information to the vehicle-mounted device, so that the function redundancy between devices is reduced, the function coupling between subsystems is reduced, and the overall efficiency of the train control system is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit communication signals, and in particular to a system and method for sending temporary train speed limit information. Background Art

[0002] The temporary speed limit server device in the train control system has the functions of managing electronic map downloads, differential information forwarding, and temporary speed limit information splitting. The current train control system splits the speed limit information through the temporary speed limit server device and sends it to the wireless block center device. The wireless block center device combines the driving permission information generated by it to generate the speed limit information of the current train, and then sends it to the on-board device to achieve the temporary speed limit of the train. However, in the existing train control system, the speed limit information is processed jointly by the temporary speed limit device and the wireless block center device, which makes the functions between the devices redundant and causes the overall efficiency of the train control system to be low. Summary of the invention

[0003] The purpose of the present invention is to provide a system and method for sending temporary train speed limit information, which solves the problem of redundancy of speed limit functions between devices in a train control system, reduces functional coupling between subsystems, and improves the overall efficiency of the train control system.

[0004] In order to achieve the above object, the present invention provides a method for sending temporary train speed limit information, comprising:

[0005] The radio block center equipment periodically sends authorization information containing idle track section information to the on-board equipment;

[0006] The onboard device determines whether the received authorization information is updated, generates requested speed limit information including the authorized track section information of the train according to the updated authorization information, and sends the updated requested speed limit information to the temporary speed limit server device;

[0007] The temporary speed limit server device calculates the speed limit information according to the updated requested speed limit information, and sends the speed limit information to the vehicle-mounted device.

[0008] Optionally, the on-board system sends authorization request information containing track segment list information to the wireless block center equipment, the wireless block center equipment determines whether the train meets the authorization requirements based on the authorization request information, and the wireless block center equipment sends authorization information containing idle track segments to the on-board equipment of the train that meets the authorization requirements.

[0009] Optionally, the method for the radio block center to determine whether a train meets the authorization requirements includes:

[0010] The radio block center equipment makes a judgment based on the request authorization information and the route information, section direction, and track section vacancy or occupation information fed back by the interlocking equipment;

[0011] When the radio block center equipment determines that the track section ahead of the train is idle, or manually confirms that the track section ahead of the train is idle, the train meets the authorization requirements.

[0012] Optionally, the method for the on-board device to determine whether the authorization information is updated includes: the on-board device compares the idle track segment information in the authorization information received in the current cycle with the idle track segment information in the authorization information received in the previous cycle; when the content of the idle track segment information in the authorization information of two adjacent cycles received by the on-board device is not exactly the same, it is determined that the authorization information has been updated.

[0013] Optionally, the radio block center device extracts the idle track segment information according to the track segment list information in the request authorization information to obtain an information packet of the authorization information; the information packet of the authorization information includes: authorized track length, slope change point information, speed change point information, and transponder link information; the authorized track length includes: driving permission starting point and driving length information; the on-board device determines the authorized starting point and end point of the train according to the driving permission starting point and driving length information in the updated information packet of the authorization information, obtains the updated authorized track segment information of the train, and then generates updated requested speed limit information;

[0014] The updated requested speed limit information is an authorized advance instruction, an authorized shortening instruction or an authorized extension instruction, and all three instructions can reflect the authorized track section information of the train in the updated authorization information.

[0015] Optionally, the wireless block center device receives the track segment information fed back by the interlocking device in real time. When the track segment information fed back by the interlocking device is updated, the train track segment information configured inside the wireless block center device will be updated, and the wireless block center device will generate updated authorization information and send it to the on-board device.

[0016] Optionally, the temporary speed limit server device receives speed limit information sent by the centralized scheduling system, and completes updating of internal configuration information of the temporary speed limit server device.

[0017] Optionally, when the vehicle-mounted device sends updated request speed limit information to the temporary speed limit server device, and the internal configuration information of the temporary speed limit server device is not updated, the method for the temporary speed limit server device to send speed limit information to the vehicle-mounted device includes:

[0018] The temporary speed limit server device compares the track section information authorized for the updated train with the route information and track section information in the internal configuration information of the temporary speed limit server device, extracts information corresponding to the track section information authorized for the updated train from the internal configuration information of the temporary speed limit server device, generates intermediate speed limit information corresponding to the track section information authorized for the updated train, and further compares the intermediate speed limit information with the speed limit information successfully executed by the train recorded by the temporary speed limit server device to determine whether there is track section information in the intermediate speed limit information that overlaps with the speed limit information successfully executed by the train. When there is no overlapping track section information in the intermediate speed limit information, the intermediate speed limit information is used as the latest speed limit information and then sent to the on-board device of the train; otherwise, the temporary speed limit server device will re-extract the intermediate speed limit information.

[0019] Optionally, when the vehicle-mounted device does not send updated requested speed limit information to the temporary speed limit server device, and the internal configuration information of the temporary speed limit server device is updated, the method for the temporary speed limit server device to send speed limit information to the vehicle-mounted device includes:

[0020] The temporary speed limit server device needs to determine whether the updated internal configuration information of the temporary speed limit server device has overlapping track section information with the track section information authorized by the train after the update; when the updated internal configuration information of the temporary speed limit server device has overlapping track section information with the track section information authorized by the train after the update, the temporary speed limit server device may send the updated speed limit information to the on-board device without receiving the updated request speed limit information sent by the on-board device; otherwise, the temporary speed limit server device does not send the speed limit information to the on-board device.

[0021] The present invention also provides a method for sending temporary train speed limit information, which is implemented based on a temporary speed limit server device. The sending method comprises:

[0022] The temporary speed limit server device receives the requested speed limit information including the updated track section information of the authorized train sent by the on-board device, calculates the speed limit information according to the updated requested speed limit information, and sends the speed limit information to the on-board device.

[0023] Optionally, the updated requested speed limit information is an authorized advance instruction, an authorized shortening instruction or an authorized extension instruction, and all three instructions can reflect the authorized track section information of the train in the updated authorization information.

[0024] Optionally, the temporary speed limit server device receives speed limit information sent by the centralized scheduling system, and completes updating of internal configuration information of the temporary speed limit server device.

[0025] Optionally, when the temporary speed limit server device receives the updated speed limit request information sent by the vehicle-mounted device, and the internal configuration information of the temporary speed limit server device is not updated, the method for the temporary speed limit server device to send the speed limit information to the vehicle-mounted device includes:

[0026] The temporary speed limit server device compares the track section information authorized for the updated train with the route information and track section information in the internal configuration information of the temporary speed limit server device, extracts information corresponding to the track section information authorized for the updated train from the internal configuration information of the temporary speed limit server device, generates intermediate speed limit information corresponding to the track section information authorized for the updated train, and further compares the intermediate speed limit information with the speed limit information successfully executed by the train recorded by the temporary speed limit server device to determine whether there is track section information in the intermediate speed limit information that overlaps with the speed limit information successfully executed by the train. When there is no overlapping track section information in the intermediate speed limit information, the intermediate speed limit information is used as the latest speed limit information and then sent to the on-board device of the train; otherwise, the temporary speed limit server device will re-extract the intermediate speed limit information.

[0027] Optionally, when the temporary speed limit server device does not receive the updated requested speed limit information sent by the vehicle-mounted device, and the internal configuration information of the temporary speed limit server device is updated, the method for the temporary speed limit server device to send the speed limit information to the vehicle-mounted device includes:

[0028] The temporary speed limit server device needs to determine whether the updated internal configuration information of the temporary speed limit server device has overlapping track section information with the track section information authorized by the train after the update; when the updated internal configuration information of the temporary speed limit server device has overlapping track section information with the track section information authorized by the train after the update, the temporary speed limit server device may send the updated speed limit information to the on-board device without receiving the updated request speed limit information sent by the on-board device; otherwise, the temporary speed limit server device does not send the speed limit information to the on-board device.

[0029] Optionally, the speed limit information configured inside the temporary speed limit server device is updated including: the temporary speed limit server device receives new speed limit execution information sent by the centralized scheduling system, and the temporary speed limit server device receives temporary speed limit cancellation information sent by the centralized scheduling system and has executed it successfully.

[0030] In addition, another object of the present invention is a system for sending temporary speed limit information of trains, comprising: on-board equipment, temporary speed limit server equipment, and wireless block center equipment; the wireless block center equipment performs two-way signal transmission with the on-board equipment via a wireless communication network, can receive track segment list information sent by the on-board equipment, and send idle track segment information to the on-board equipment; the temporary speed limit server equipment performs two-way signal transmission with the on-board equipment via a wireless communication network, can receive request speed limit information sent by the on-board equipment containing updated authorized track segment information of the train, and send speed limit information to the on-board equipment.

[0031] Optionally, it also includes:

[0032] A centralized dispatching system, wherein the centralized dispatching system establishes a signal connection with the temporary server device through wireless communication, and is capable of sending speed limit information to the temporary speed limit service device, so that the speed limit information configured inside the temporary speed limit server device is updated;

[0033] The interlocking device establishes a signal connection with the radio block center device through wireless communication and can send feedback information to the radio block center device.

[0034] Compared with the prior art, the technical solution of the present invention has at least the following beneficial effects:

[0035] The present invention does not require an interface between a temporary speed limit server device and a wireless block center device, thereby reducing device failure nodes; the temporary speed limit server device generates speed limit information according to train authorization information and a centralized dispatching system, and directly sends the information to the on-board device, thereby reducing functional redundancy between devices, reducing functional coupling between subsystems, and improving the overall efficiency of the train control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of a system device for sending temporary train speed limit information according to the present invention.

[0037] Figure 2 The present invention is a flow chart of the method for sending temporary train speed limit information.

[0038] In the figure, 1-temporary speed limit server equipment, 2-wireless block center equipment, 3-vehicle equipment. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Figure 1 The present invention is a schematic diagram of a system device for sending temporary speed limit information of a train, wherein the system device comprises: a temporary speed limit server device 1, a wireless block center device 2, an onboard device 3, an interlocking device, and a dispatching centralized system. The onboard device 3 controls the information of the train running speed, the driving time, and the distance between the trains. The temporary speed limit server device 1 is responsible for uniformly managing the temporary speed limit information of the train, and performs two-way signal transmission with the onboard device 3 through a wireless communication network, can receive the request speed limit information sent by the onboard device 3, and send the speed limit information to the onboard device 3. The wireless block center device 2 is used to generate and manage the movement authorization of the train, and performs two-way signal transmission with the onboard device 3 through a wireless communication network, can receive the request authorization information sent by the onboard device 3, and send the authorization information to the onboard device 3. The interlocking device establishes a signal connection with the wireless block center device 2 through wireless communication, and can send feedback information to the wireless block center device 2. The dispatching centralized system establishes a signal connection with the temporary server device 1 through wireless communication, and can send the speed limit information to the temporary speed limit service device 1, so that the speed limit information configured inside the temporary speed limit server device 1 is updated.

[0043] like Figure 2 As shown, the method for sending a temporary speed limit from a temporary speed limit server to a vehicle-mounted device of the present invention comprises the following specific steps:

[0044] Step 1: Initialize the temporary speed limit server device 1.

[0045] Start the temporary speed limit server device 1 and initialize the temporary speed limit server device 1. Refresh the speed limit information of the temporary speed limit server device 1 of the station and the temporary speed limit server device 1 configured at the adjacent station, and refresh the speed limit information of the centralized dispatching system to complete the initialization of the temporary speed limit server device 1.

[0046] Step 2: The vehicle-mounted device 3 interacts with the device of the radio block center 2, so that the vehicle-mounted device 3 receives the authorization information.

[0047] Signal connections are established between the onboard device 3 and the temporary speed limit server device 1 and the radio block center device 2 respectively, and the registration of the train in the temporary speed limit server device 1 and the radio block center device 2 is completed.

[0048] After the train is successfully registered, the onboard device 3 sends authorization request information to the radio block center device 2, and the content of the authorization request information includes: track section list information.

[0049] After receiving the authorization request information, the radio block center device 2 determines whether the train's onboard device 3 can meet the authorization requirements based on the authorization request information and the route information, section direction, and track section idle or occupied information fed back by the interlocking device connected to the radio block center device signal. When the radio block center device 2 determines that the track section ahead of the train is idle based on the authorization request information, or manually completes the TAF (Track Ahead Free) process to confirm that the track section ahead of the train is idle, the train's onboard device 3 meets the authorization requirements; based on the authorization request information, the radio block center device 2 autonomously sends authorization information containing idle track section information to the onboard device 3 periodically. The authorization information is the idle track section information generated by the wireless block center device 2 according to the route information, section direction, idle or occupied information of the track section fed back by the interlocking device, and the corresponding idle track section information is extracted according to the track section list information in the requested authorization information to form an authorization information information packet; the authorization information information packet includes: authorized track length, slope change point information, speed change point information, and transponder link information; the authorized track length includes: driving permission starting point and driving length information.

[0050] The wireless block center device 2 can receive the track segment information fed back by the interlocking device in real time. When the track segment information fed back by the interlocking device is updated, the train track segment information configured inside the wireless block center device 2 will be updated, and the wireless block center device 2 will generate the updated authorization information and send it to the on-board device.

[0051] In a preferred embodiment, after the on-board equipment 3 of the train meets the authorization requirements, the wireless block center equipment 2 periodically sends authorization information to the on-board equipment 3. When a new occupied position appears or an occupied position is cancelled on the authorized track section of the train, that is, when the track section idle or occupied information fed back by the interlocking device to the wireless block center equipment changes, the wireless block center equipment 2 will update the train track section information set inside it and send the updated authorization information to the on-board equipment 3.

[0052] Step 3: The temporary speed limit server device 1 interacts with the vehicle-mounted device 3, so that the temporary speed limit server device 1 sends speed limit information to the vehicle-mounted device 3 according to the authorization information.

[0053] The on-board device 3 determines whether the authorization information is updated according to the authorization information received periodically. The on-board device 3 determines whether the authorization information is updated by comparing the content of the idle track segment information in the authorization information received in this cycle with the authorization information received in the previous cycle. When the content of the authorization information of two adjacent cycles received by the on-board device 3 is not exactly the same, the authorization information is updated, and the on-board device 3 will generate the request speed limit information containing the updated track segment information of the authorized train according to the updated idle track segment information in the updated authorization information, and send it to the temporary speed limit server device 1. The updated request speed limit information is an authorization advance instruction, an authorization shortening instruction or an authorization extension instruction, and all three instructions can reflect the authorized track segment information of the train in the updated authorization information. The on-board device determines the authorized starting point and end point of the train according to the driving permission starting point and driving length information in the information packet of the updated authorization information, obtains the authorized track segment information of the train after the update, and then generates the request speed limit information containing the updated authorization information, and sends the authorization advance instruction, authorization shortening instruction or authorization extension instruction to the temporary speed limit server.

[0054] When the speed limit information in the temporary speed limit server device 1 is not updated, after receiving the updated request speed limit information from the onboard device 3, the temporary speed limit server device 1 comprehensively calculates the internal configuration information of the temporary speed limit server device 1, the speed limit information of the train that has been successfully executed recorded by the temporary speed limit server device 1, and the updated request speed limit information sent by the onboard device 3, and generates the latest speed limit information and sends it to the onboard device 3 of the train. The internal configuration information of the temporary speed limit server device 1 includes: transponder information, route information, and track section information.

[0055] At this time, the temporary speed limit server device 1 compares the track section information of the updated train authorized by the updated request speed limit information with the route information and track section information in the internal configuration information of the temporary speed limit server device 1, extracts the information corresponding to the track section information of the updated train authorized by the updated train from the route information and track section information in the internal configuration information of the temporary speed limit server device 1, generates the intermediate speed limit information corresponding to the track section information of the updated train authorized by the updated train, and further compares the intermediate speed limit information with the speed limit information of the train that has been successfully executed recorded by the temporary speed limit server device, and determines whether there is track section information in the intermediate speed limit information that overlaps with the speed limit information of the train that has been successfully executed. When there is no overlapping track section information in the intermediate speed limit information, the intermediate speed limit information is used as the latest speed limit information and then sent to the on-board device 3 of the train; otherwise, the temporary speed limit server device 1 will re-extract the intermediate speed limit information.

[0056] When the on-board device 3 does not send the updated request speed limit information to the temporary speed limit server device 1, and the internal configuration information of the temporary speed limit server device 1 is updated, the temporary speed limit server device 1 needs to determine whether the route information and track section information in the updated internal configuration information overlap with the track section information authorized by the train after the update. When the updated internal configuration information of the temporary speed limit server device overlaps with the track section information authorized by the train after the update, the temporary speed limit server device 1 may send the updated speed limit information to the on-board device 3 without receiving the updated request speed limit information sent by the on-board device 3; otherwise, the temporary speed limit server device 1 does not send the speed limit information to the on-board device 3.

[0057] Among them, the speed limit information updated in the temporary speed limit server device 1 includes: the temporary speed limit server device 1 receives the newly added speed limit execution information sent by the centralized scheduling system, and the temporary speed limit server device 1 receives the temporary speed limit cancellation information sent by the centralized scheduling system and has executed it successfully.

[0058] In summary, the present invention does not require an interface between the temporary speed limit server device and the wireless block center device, thereby reducing device failure nodes; and realizes signal transmission between the temporary speed limit server device and the wireless block center device through the on-board device, thereby reducing functional redundancy between devices, reducing functional coupling between subsystems, and improving the overall efficiency of the train control system.

[0059] 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 method for sending temporary train speed limit information, characterized in that: Include: The radio block center equipment periodically sends authorization information containing idle track section information to the on-board equipment; The onboard device determines whether the received authorization information is updated, generates requested speed limit information including the authorized track section information of the train according to the updated authorization information, and sends the updated requested speed limit information to the temporary speed limit server device; The temporary speed limit server device calculates the speed limit information according to the updated requested speed limit information, and sends the speed limit information to the vehicle-mounted device.

2. The method for sending temporary train speed limit information according to claim 1, characterized in that: The on-board system sends authorization request information containing track segment list information to the wireless block center equipment. The wireless block center equipment determines whether the train meets the authorization requirements based on the authorization request information. The wireless block center equipment sends authorization information containing idle track segments to the on-board equipment of the train that meets the authorization requirements.

3. The method for sending temporary train speed limit information according to claim 2, characterized in that: The method for the radio block center to determine whether a train meets the authorization requirements includes: The radio block center equipment makes a judgment based on the request authorization information and the route information, section direction, and track section vacancy or occupation information fed back by the interlocking equipment; When the radio block center equipment determines that the track section ahead of the train is idle, or manually confirms that the track section ahead of the train is idle, the train meets the authorization requirements.

4. The method for sending temporary train speed limit information according to claim 1, characterized in that: The method for the on-board device to determine whether the authorization information is updated includes: the on-board device compares the idle track segment information in the authorization information received in this cycle with the idle track segment information in the authorization information received in the previous cycle. When the content of the idle track segment information in the authorization information of two adjacent cycles received by the on-board device is not completely the same, it is determined that the authorization information has been updated.

5. The method for sending temporary train speed limit information according to claim 2, characterized in that: The radio block center equipment extracts the idle track segment information according to the track segment list information in the request authorization information to obtain the information packet of the authorization information; The information packet of the authorization information includes: authorized track length, slope change point information, speed change point information, and transponder link information; the authorized track length includes: driving permission starting point and driving length information; the on-board device determines the authorized starting point and end point of the train according to the driving permission starting point and driving length information in the updated information packet of the authorization information, obtains the updated authorized track section information of the train, and then generates updated requested speed limit information; The updated requested speed limit information is an authorized advance instruction, an authorized shortening instruction or an authorized extension instruction, and all three instructions can reflect the authorized track section information of the train in the updated authorization information.

6. The method for sending temporary train speed limit information according to claim 4, characterized in that: The wireless block center device receives the track segment information fed back by the interlocking device in real time. When the track segment information fed back by the interlocking device is updated, the train track segment information configured inside the wireless block center device is updated, and the wireless block center device generates updated authorization information and sends it to the on-board device.

7. The method for sending temporary train speed limit information according to claim 1, characterized in that: The temporary speed limit server device receives the speed limit information sent by the centralized scheduling system, and completes the update of the internal configuration information of the temporary speed limit server device.

8. The method for sending temporary train speed limit information according to claim 6, characterized in that: When the vehicle-mounted device sends updated request speed limit information to the temporary speed limit server device, and the internal configuration information of the temporary speed limit server device is not updated, the method for the temporary speed limit server device to send speed limit information to the vehicle-mounted device includes: The temporary speed limit server device compares the track section information authorized for the updated train with the route information and track section information in the internal configuration information of the temporary speed limit server device, extracts information corresponding to the track section information authorized for the updated train from the internal configuration information of the temporary speed limit server device, generates intermediate speed limit information corresponding to the track section information authorized for the updated train, and further compares the intermediate speed limit information with the speed limit information successfully executed by the train recorded by the temporary speed limit server device to determine whether there is track section information in the intermediate speed limit information that overlaps with the speed limit information successfully executed by the train. When there is no overlapping track section information in the intermediate speed limit information, the intermediate speed limit information is used as the latest speed limit information and then sent to the on-board device of the train; otherwise, the temporary speed limit server device will re-extract the intermediate speed limit information.

9. The method for sending temporary train speed limit information according to claim 6, characterized in that: When the vehicle-mounted device does not send updated requested speed limit information to the temporary speed limit server device, and the internal configuration information of the temporary speed limit server device is updated, the method for the temporary speed limit server device to send speed limit information to the vehicle-mounted device includes: The temporary speed limit server device needs to determine whether the updated internal configuration information of the temporary speed limit server device has overlapping track section information with the track section information authorized by the train after the update; when the updated internal configuration information of the temporary speed limit server device has overlapping track section information with the track section information authorized by the train after the update, the temporary speed limit server device may send the updated speed limit information to the on-board device without receiving the updated request speed limit information sent by the on-board device; otherwise, the temporary speed limit server device does not send the speed limit information to the on-board device.

10. A method for sending temporary train speed limit information, characterized in that: Based on the temporary speed limit server device implementation, the sending method includes: The temporary speed limit server device receives the requested speed limit information including the updated track section information of the authorized train sent by the on-board device, calculates the speed limit information according to the updated requested speed limit information, and sends the speed limit information to the on-board device.

11. The method for sending temporary train speed limit information according to claim 10, characterized in that: The updated requested speed limit information is an authorized advance instruction, an authorized shortening instruction or an authorized extension instruction, and all three instructions can reflect the authorized track section information of the train in the updated authorization information.

12. The method for sending temporary train speed limit information according to claim 10, characterized in that: The temporary speed limit server device receives the speed limit information sent by the centralized scheduling system, and completes the update of the internal configuration information of the temporary speed limit server device.

13. The method for sending temporary train speed limit information according to claim 10, characterized in that: When the temporary speed limit server device receives the updated request speed limit information sent by the vehicle-mounted device, and the internal configuration information of the temporary speed limit server device is not updated, the method for the temporary speed limit server device to send the speed limit information to the vehicle-mounted device includes: The temporary speed limit server device compares the track section information authorized for the updated train with the route information and track section information in the internal configuration information of the temporary speed limit server device, extracts information corresponding to the track section information authorized for the updated train from the internal configuration information of the temporary speed limit server device, generates intermediate speed limit information corresponding to the track section information authorized for the updated train, and further compares the intermediate speed limit information with the speed limit information successfully executed by the train recorded by the temporary speed limit server device to determine whether there is track section information in the intermediate speed limit information that overlaps with the speed limit information successfully executed by the train. When there is no overlapping track section information in the intermediate speed limit information, the intermediate speed limit information is used as the latest speed limit information and then sent to the on-board device of the train; otherwise, the temporary speed limit server device will re-extract the intermediate speed limit information.

14. The method for sending temporary train speed limit information according to claim 10, characterized in that: When the temporary speed limit server device does not receive the updated request speed limit information sent by the vehicle-mounted device, and the internal configuration information of the temporary speed limit server device is updated, the method for the temporary speed limit server device to send the speed limit information to the vehicle-mounted device includes: The temporary speed limit server device needs to determine whether the updated internal configuration information of the temporary speed limit server device has overlapping track section information with the track section information authorized by the train after the update; when the updated internal configuration information of the temporary speed limit server device has overlapping track section information with the track section information authorized by the train after the update, the temporary speed limit server device may send the updated speed limit information to the on-board device without receiving the updated request speed limit information sent by the on-board device; otherwise, the temporary speed limit server device does not send the speed limit information to the on-board device.

15. The method for sending temporary train speed limit information according to claim 14, characterized in that: The speed limit information update situation of the internal configuration of the temporary speed limit server device includes: the temporary speed limit server device receives the newly added execution speed limit information sent by the scheduling concentration system, and the temporary speed limit server device receives the temporary speed limit cancellation information sent by the scheduling concentration system and has executed it successfully.

16. A sending system for implementing the method for sending temporary train speed limit information according to any one of claims 1 to 15, characterized in that: include: On-board equipment, temporary speed limit server equipment, wireless block center equipment; The wireless block center device performs two-way signal transmission with the on-board device via a wireless communication network, can receive the track segment list information sent by the on-board device, and send idle track segment information to the on-board device; the temporary speed limit server device performs two-way signal transmission with the on-board device via a wireless communication network, can receive the request speed limit information sent by the on-board device containing the updated authorized track segment information of the train, and send the speed limit information to the on-board device.

17. The system for sending temporary train speed limit information according to claim 16, characterized in that: Also includes: A centralized dispatching system, wherein the centralized dispatching system establishes a signal connection with the temporary server device through wireless communication, and is capable of sending speed limit information to the temporary speed limit service device, so that the speed limit information configured inside the temporary speed limit server device is updated; The interlocking device establishes a signal connection with the radio block center device through wireless communication and can send feedback information to the radio block center device.

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