A train control system and a train control method based on a local tsrs

Abstract

A train control system based on a local temporary speed limit server system is disclosed. The train control system is used to control the speed of trains traveling from an adjacent line to a local line. The train control system includes: an adjacent train control system connected to the train signaling system for controlling the speed of the train on the adjacent line; and a local control system connected to both the train signaling system and the adjacent train control system for controlling the speed of the train on the local line. This invention has the advantage of optimizing train operation.

Description

Technical Field

[0001] This invention relates to the field of train line dispatching, and in particular to a train control system and train control method based on a local TSRS. Background Technology

[0002] The Chinese Train Control System (CTCS) is a tiered train control system designed to ensure safe train operation and meet the transportation needs of different lines. The CTCS includes several ground and onboard devices to control the corresponding trains. Currently, the mainstream train control systems include CTCS0 ​​(Level 0), CTCS2 (Level 2), and CTCS3 (Level 3). In practical applications, different lines utilize different CTCS systems to control the operation of different trains. Furthermore, the Chinese Train Control System is often composed of lower-level CTCS systems with different functions, such as deceleration and speed control. This invention focuses on the speed control function when a train crosses different lines.

[0003] Specifically, each of the aforementioned lower-level train operation control systems includes a TSRS (Temporary Speed ​​Restriction Server) and multiple TCCs (Train Control Centers). Each TCC is connected to its corresponding TSRS and to the train. The TSRS sends a start command to the corresponding TCC based on external information, thereby enabling the TCC to control the train's operating speed. This can be understood as the start command causing the TCC to enter an active working state; otherwise, the TCC will be in a dormant state, controlling the train to run at a safe speed.

[0004] In the specific application of trains crossing different lines, since each TCC has a corresponding TSR (Temporary Speed ​​Restriction) jurisdiction, the corresponding TCC can control the train only when the train is within its corresponding TSR jurisdiction. Therefore, when trains cross lines, there will be overlap between the TSR jurisdictions of multiple TCCs on two lines.

[0005] At this point, there are certain difficulties in handling speed control between the two lines and in managing multiple TCCs. For example, there will inevitably be some overlap in the TSR jurisdiction between the two lines. If safety is prioritized too much, the TCC will not receive the start command each time the train crosses a line, and the train will run at a safe speed in that section. This will prevent trains within the TSR jurisdiction of the corresponding TCC from running at normal speed. How to coordinate trains crossing boundaries between different lines becomes an urgent problem to be solved. Summary of the Invention

[0006] The purpose of this invention is to provide a train control system and train control method based on a local TSRS, which has the advantage of optimizing train operation.

[0007] To achieve the above objectives, this invention proposes a train control system based on a local temporary speed limit server system. The train control system is used to control the speed of trains traveling from an adjacent line to a local line. The train control system includes: an adjacent train control system connected to the train signaling system for controlling the train speed on the adjacent line; and a local control system connected to both the train signaling system and the adjacent train control system for controlling the train speed on the local line. The adjacent train control system includes: one adjacent temporary speed limit server system and multiple adjacent train control centers. Each of the multiple adjacent train control centers is connected to the adjacent temporary speed limit server system, and each adjacent train control center is connected to the train signaling system. The local control system includes... The system comprises a local temporary speed limit server system and multiple local train control centers, each of which is signal-connected to the local temporary speed limit server system. The local temporary speed limit server system is signal-connected to adjacent temporary speed limit server systems, and each local train control center is signal-connected to a train. The adjacent / local temporary speed limit server system receives external information and sends a start command to the corresponding adjacent / local train control center based on the external information. The adjacent / local train control center controls the train to operate in a safe state when it does not receive a start command. Each adjacent / local train control center actively controls the train's speed on the adjacent / local line based on the start command from the adjacent / local temporary speed limit server system.

[0008] Preferably, the adjacent temporary speed limit server system and multiple adjacent train control centers are all fixedly installed on the adjacent line operating path of the train; the local temporary speed limit server system and multiple local train control centers are all fixedly installed on the local line operating path of the train.

[0009] Preferably, each of the adjacent / local train control centers has a corresponding temporary speed limit jurisdiction area, and each of the adjacent / local train control centers controls the operating speed of the train within the corresponding temporary speed limit jurisdiction area.

[0010] Preferably, when the temporary speed limit jurisdiction of different adjacent / local train control centers overlaps, the train is controlled by prioritizing the latest train control center.

[0011] A train control method based on a local temporary speed limit server system is disclosed. The method employs a train control system based on a local temporary speed limit server system as described above. The method includes: Step S1, marking the boundary train control centers of the local line; the boundary train control centers refer to local train control centers whose temporary speed limit jurisdiction overlaps with that of adjacent lines; Step S2, obtaining the start command reception status of all adjacent train control centers; if all adjacent train control centers have received the start command, the train enters the local line at normal speed and proceeds to Step S4; otherwise, proceeds to Step S3; Step S3, checking whether there is a boundary train control center whose scheduling range overlaps with that of an adjacent line and which has received the start command; if so, the train enters the local line at normal speed; if not, it enters the local line at a safe speed and proceeds to Step S4; Step S4, after entering the local line, the local temporary speed limit server system sends a start command to the corresponding local train control center based on external information, and the corresponding local train control center controls the train's operation.

[0012] Preferably, step S4 includes: when the train enters the local line at a normal speed after step S2, the local temporary speed limit server system does not send a start command to any local train control center, and at this time all local train control centers enable the train to run at a safe speed.

[0013] Preferably, step S4 includes: when the train enters the local line at a normal speed after step S2, and the local temporary speed limit server system sends a start command to the corresponding local train control center, the local train control center causes the train to run in the appropriate manner.

[0014] Preferably, step S4 includes: when the train enters the local line at a safe speed after step S3, the local temporary speed limit server system does not send a start command to any local train control center, and at this time all local train control centers enable the train to run at a safe speed.

[0015] Preferably, step S4 includes: when the train enters the local line at a normal speed after step S3, and the local temporary speed limit server system does not send a start command to any local train control center other than the first boundary train control center, the train will run at a safe speed.

[0016] Preferably, step S4 includes: when the train enters the local line at a safe speed after step S3, and the local temporary speed limit server system sends a start command to the corresponding local train control center, the local train control center causes the train to run in the appropriate manner.

[0017] Preferably, step S4 includes: when the train enters the local line at a normal speed after step S3, and the local temporary speed limit server system sends a start command to the corresponding local train control center, the local train control center causes the train to run in the appropriate manner.

[0018] Preferably, after a train enters the local line at normal speed, the local train control center needs to maintain the train's normal speed, specifically including: Step Q1, selecting any local train control center on the local line; Step Q2, determining whether the temporary speed limit jurisdiction of the local train control center overlaps with the temporary speed limit jurisdiction of the adjacent line. If there is no overlap, return to Step Q1; if there is an overlap, proceed to Step Q3; Step Q3: determining whether the local train control center has received the start command. If it has received it, return to Step Q1; if it has not received it, proceed to Step Q4; Step Q4: the local temporary speed limit server system sends the start command to the local train control center; Step Q5: verifying whether all local train control centers on the local line have been judged. If not, return to Step Q1; if yes, end the process.

[0019] A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the aforementioned train control method based on a local temporary speed limit server system.

[0020] An electronic device includes a processor and a memory, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, it implements the aforementioned train control method based on a local temporary speed limit server system.

[0021] In summary, compared with the prior art, the train control system and train control method based on local TSRS provided by the present invention have the following beneficial effects:

[0022] First, the train control system and train control method based on local TSRS proposed in this invention will greatly improve the train operation efficiency on CTCS lines.

[0023] Secondly, while improving driving efficiency, this invention can continue to ensure the driving safety of the local line even when the adjacent TSRS is not activated or is activated but not operating normally.

[0024] Third, this invention provides line data designers with clearer design guidance through the analysis of various scenarios. Attached Figure Description

[0025] Figure 1 This is a partial schematic diagram of the local line and adjacent lines of the present invention.

[0026] Figure 2 This is a partial schematic diagram of a local line with four TCCs in an embodiment of the present invention.

[0027] Figure 3 This is a schematic diagram of an embodiment of the present invention.

[0028] Figure 4 This is a flowchart illustrating a method for maintaining normal train speed by a local train control center, applicable to a train control method based on a local temporary speed limit server system, as proposed in this invention. Detailed Implementation

[0029] The following will be combined with the appendix in the embodiments of the present invention. Figure 1 ~Attached Figure 4 The technical solutions, structural features, objectives and effects achieved in the embodiments of the present invention will be described in detail.

[0030] It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions. They are only used to facilitate and clarify the purpose of illustrating the embodiments of the present invention, and are not intended to limit the implementation conditions of the present invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationship, or adjustments to the size should still fall within the scope of the technical content disclosed in the present invention, provided that they do not affect the effects and objectives that the present invention can produce.

[0031] It should be noted that, in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only the expressly listed elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0032] like Figure 1and Figure 2 As shown, the present invention provides a train control system based on local TSRS for performing corresponding speed control on trains traveling from adjacent lines to local lines; wherein, the local line refers to the destination line that the train needs to reach, and the adjacent line refers to the adjacent line that the train must pass through to enter the local line.

[0033] The train control system includes:

[0034] The adjacent train control system is connected to the train signaling system and is used to control the speed of the train on the adjacent line.

[0035] The local control system is connected to the train signaling system and the adjacent train control system signaling system, and is used to control the speed of the train on the local line.

[0036] The adjacent train control system includes: one adjacent TSRS (Temporary Speed ​​Restriction Server) and multiple adjacent TCCs (Train Control Centers). The multiple adjacent TCCs are respectively connected to the adjacent TSRS signal, and each of the adjacent TCCs is connected to the train signal. The adjacent TSRS and multiple adjacent TCCs are all fixedly installed on the adjacent line running path of the train.

[0037] The local control system includes: a local TSRS and multiple local TCCs, each of which is connected to a local TSRS signal; the local TSRS is connected to an adjacent TSRS signal, and each of the local TCCs is connected to a train signal; wherein the local TSRS and multiple local TCCs are all fixedly installed on the local line running path of the train.

[0038] Each adjacent / local TCC has a corresponding TSR (Temporary Speed ​​Restriction) jurisdiction area. When a train is within the TSR jurisdiction area, the corresponding adjacent / local TCC controls the train's running speed within that TSR jurisdiction area.

[0039] The adjacent / local TSRS receives external information and sends a start command to the corresponding adjacent / local TCC based on the external information. The adjacent / local TCC controls the train to operate in a safe state when it does not receive a start command. The external information includes information from sources such as the train's interlocking system, the train's computer operating system, other TSRSs, and the radio control center. Specifically, the external information determines whether the adjacent / local TSRS generates a corresponding start command for the adjacent / local TCC, and what kind of start command is generated. This can be understood as the adjacent / local TCC only entering a state of actively controlling the train's operating speed after receiving a start command; otherwise, the train will not be actively controlled by the corresponding adjacent / local TCC, but will operate at a safe speed.

[0040] Each of the adjacent / local TCCs controls the train speed on the adjacent / local line based on the start command from the adjacent / local TSRS. Furthermore, the related technology for generating the start command in this invention is based on existing technology; the focus of this invention is on train speed control, and the detailed generation method and process of the start command are not elaborated here.

[0041] Specifically, the operating speed of any adjacent / local TCC-controlled train within the jurisdiction of the corresponding TSR (Temporary Speed ​​Restriction). For example, Figure 2 As shown, in cases where the jurisdiction of TSRs corresponding to different TCCs overlap, the jurisdiction of the overlapping TSRs is handled by prioritizing the latest TCC, and the train is controlled accordingly. See the following for details.

[0042] Based on the aforementioned train control system, to achieve normal train speed operation during the transition from adjacent lines to local lines, this invention proposes a train control method based on a local TSRS, the method comprising:

[0043] Step S1: Mark the boundary TCC of the local line;

[0044] Specifically, the boundary TCC refers to a local TCC that overlaps with the jurisdiction of the TSR of the adjacent line;

[0045] For example, such as Figure 2 The local line shows 4 local TCCs. The TSR jurisdiction of these 4 local TCCs overlaps with the TSR jurisdiction of the adjacent line. The brown part in the figure represents the TSR jurisdiction of the adjacent line. Therefore, these 4 local TCCs are all marked as boundary TCCs.

[0046] Step S2: Obtain the start command reception status of all adjacent TCCs. If all adjacent TCCs receive the start command, the train enters the local line at normal speed and proceeds to step S4; otherwise, proceed to step S3.

[0047] Step S3: Check if there is a boundary TCC that overlaps with the scheduling range of the adjacent line and has received the start command. If there is, enter the local line at normal speed and proceed to step S4; if not, enter the local line at a safe speed and proceed to step S4.

[0048] Among them, such as Figure 1 As shown, the dispatch range refers to the actual segment division range between the local line and adjacent lines. The dispatch range differs from the TSR's jurisdiction; the dispatch ranges of the local line and adjacent lines have a clear dividing line, such as... Figure 1 The purpose of this step is to ensure that, in situations where it cannot be guaranteed that all trains on adjacent lines are controlled by adjacent TCCs that are in operation, the focus is on identifying whether there is a "responding" boundary TCC on the local line (i.e., a TCC whose dispatching range overlaps with that of the adjacent line and has already received a start command). The significance of using the dispatching range as a measure is that, compared to the conceptual nature of the TSR's jurisdiction (which is essentially determined by radio signals), using the dispatching range is more accurate and ensures train operation safety.

[0049] Therefore, when a "responding" boundary TCC exists, the train can enter the local line at normal speed;

[0050] When there is no "responding" boundary TCC, the train must enter the local line at a safe speed. Specifically, when the train reaches the dispatch boundary between the adjacent line and the local line, the train's speed will be forcibly changed to a safe speed. If it is already at a safe speed, it can be maintained. In addition, the judgment from the large range of adjacent TCCs to the small range of boundary TCCs is to ensure the rationality of the entire process verification and to ensure that each adjacent TCC is captured by the adjacent TSRS. As mentioned above, the data captured by the adjacent TSRS is also a kind of external information and can be used to generate relevant start commands of the local TSRS.

[0051] Step S4: After entering the local line, the local TSRS sends a start command to the corresponding local TCC based on external information, and the corresponding local TCC controls the operation of the train.

[0052] At this point, since the train has already traveled along the local line at a fixed speed, the local line's TSRS can control the train's speed without any obstacles through the local TCC.

[0053] When the TSR jurisdiction of different adjacent / local TCCs overlaps, regarding which TCC controls the train, as mentioned earlier, the latest TCC takes precedence; Figure 2 As shown, after entering the local line, the TSR jurisdiction of local TCC1 (boundary TCC1) and local TCC2 (boundary TCC2) overlap. However, since the train first enters the TSR jurisdiction of local TCC1 (boundary TCC1) and then enters the TSR jurisdiction of local TCC2 (boundary TCC2), when the train enters the TSR jurisdiction of local TCC2 (boundary TCC2), local TCC2 (boundary TCC2) is the latest TCC. Based on the principle of prioritizing the latest TCC, even if the TSR jurisdiction of local TCC1 (boundary TCC1) overlaps, the train still takes the command of local TCC2 (boundary TCC2) as the highest priority.

[0054] Specifically, the following are corresponding embodiments of step S4:

[0055] (1) After the train enters step S4 under the condition of step S2, when the train enters the local line at normal speed, the local TSRS does not send a start command to any local TCC. At this time, all local TCCs make the train run at a safe speed.

[0056] Upon entering the local track, since the local TCC (Train Control Center) has not received a start command, it will not control the train's speed. Consequently, the train will change from its normal speed to a safe speed after entering the local track. Figure 2 As shown, if none of the four boundary TCCs receive a start command from the local TSRS, the trains within their TSR jurisdiction will not be actively controlled by the local TCC. The trains will be reduced to a safe speed within the overlapping area of ​​the boundary TCC1 and the adjacent line's TSR jurisdiction. Trains within the TSR jurisdiction of the four boundary TCCs can only run at a safe speed, and so on.

[0057] (2) After the train enters step S4 under the condition of step S2, when the train enters the local line at normal speed, when the local TSRS sends a start command to the corresponding local TCC, the local TCC makes the train run in the corresponding manner.

[0058] For example, if boundary TCC1 does not receive a start command, but boundary TCC2, boundary TCC3, and boundary TCC4 do, then the train will enter a safe speed within the overlapping TSR jurisdiction of boundary TCC1 and boundary TCC2, and then run at normal speed within the TSR jurisdiction of boundary TCC2 / boundary TCC3 / boundary TCC4.

[0059] For example, if a train crosses the boundaries of TCC2, TCC3, or TCC4, and the corresponding local TCCs do not receive a start command, the train will return to a safe speed to ensure safe operation. Specifically, for instance, if boundary TCC3 receives a start command but boundary TCC4 does not, the train will run at normal speed within the TSR jurisdiction area where boundary TCC3 does not overlap with boundary TCC4. However, when the train enters the TSR jurisdiction area of ​​boundary TCC4, it will reduce to a safe speed.

[0060] (3) After the train enters step S4 under the condition of step S3, when the train enters the local line at a safe speed, the local TSRS does not send a start command to any local TCC. At this time, all local TCCs make the train run at a safe speed.

[0061] (4) After the train enters step S4 under the condition of step S3, when the train enters the local line at normal speed, the train will run at a safe speed if the local TSRS does not send a start command to any local TCC other than boundary TCC1.

[0062] For example, if boundary TCC2, boundary TCC3, and boundary TCC4 do not receive a start command from the local TSRS, the train will slow down to a safe speed within the overlapping TSR jurisdiction of boundary TCC2 and boundary TCC1.

[0063] (5) After the train enters step S4 under the condition of step S3, when the train enters the local line at a safe speed, when the local TSRS sends a start command to the corresponding local TCC, the local TCC makes the train run in the corresponding manner, as mentioned above, and will not be repeated here.

[0064] (6) After the train enters step S4 under the condition of step S3, when the train enters the local line at normal speed, when the local TSRS sends a start command to the corresponding local TCC, the local TCC makes the train run in the corresponding manner, as mentioned above, and will not be repeated here.

[0065] As mentioned above, this invention can ensure train operation efficiency while allowing the local line to perform its corresponding work without being affected by the adjacent line, even when the train is not operating normally on the adjacent line or the corresponding adjacent TCC has not received a start command.

[0066] Furthermore, trains entering the local line will be directly controlled by the local TCC, without any conflict with adjacent TCCs on adjacent lines. In addition, to ensure that trains entering the local line at normal speed can continue to travel at normal speed and to prevent unexpected TCC priority control, the present invention also proposes a method for maintaining the normal speed of trains by the local TCC (see below for details).

[0067] like Figure 4 As shown, the present invention also proposes a method for maintaining the normal speed of trains by local TCCs. The purpose is to ensure the coordination of trains entering the local line from the adjacent line. For trains entering the local line at normal speed, all local TCCs that overlap with the TSR jurisdiction of the adjacent line are required to further maintain the normal speed after receiving the start command.

[0068] The method includes:

[0069] Step Q1: Select any local TCC on the local line;

[0070] Step Q2: Determine whether the TSR jurisdiction of the local TCC overlaps with the TSR jurisdiction of the adjacent line. If there is no overlap, return to step Q1; if there is an overlap, proceed to step Q3.

[0071] Step Q3: Determine whether the local TCC has received the start command. If it has, return to step Q1; otherwise, proceed to step Q4.

[0072] Step Q4: The local TSRS sends a start command to the local TCC;

[0073] like Figure 3 As shown, after receiving external information, the local TSRS sends a start command to the local TCC;

[0074] Step Q5: Check whether all local TCCs on the local line have been checked. If not, return to step Q1; if yes, end the process.

[0075] This method applies only when the train enters the local line at normal speed, such as... Figure 2 and Figure 3As shown, at this time, whether all adjacent TCCs of the adjacent line receive the start command or there is a boundary TCC1 that has received the start command and overlaps with the dispatching range of the adjacent line, it will enter the local line at normal speed. If it is necessary to ensure the coordination and consistency of train operation, the above method requires that local TCC1, local TCC2, local TCC3, and local TCC4 be in the state of receiving the start command. This method is applicable when the TSR jurisdiction of the adjacent line and the TSR jurisdiction of the local TCC overlap. Because it involves the interaction between different TSRS, it can avoid the situation where the local TCC controlling the train makes a mistake in priority judgment with the TCC of the adjacent line, and further reduce the probability of train operation failure.

[0076] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A train control system based on a local temporary speed limit server system, characterized in that, The train control system is used to control the speed of trains traveling from adjacent lines to the local line; the train control system includes: The adjacent train control system is connected to the train signaling system and is used to control the speed of the train on the adjacent line. The local control system is connected to the train signal and the adjacent train control system signal, and is used to control the speed of the train on the local line. The adjacent train control system includes: an adjacent temporary speed limit server system and multiple adjacent train control centers. The multiple adjacent train control centers are respectively connected to the adjacent temporary speed limit server system by signal, and each of the adjacent train control centers is connected to the train signal. The local control system includes: a local temporary speed limit server system and multiple local train control centers, with each of the multiple local train control centers being signal-connected to the local temporary speed limit server system; the local temporary speed limit server system is signal-connected to adjacent temporary speed limit server systems, and each of the local train control centers is signal-connected to a train. The adjacent / local temporary speed limit server system receives external information and sends a start command to the corresponding adjacent / local train control center based on the external information. The adjacent / local train control center controls the train to run in a safe state when it does not receive a start command. Any of the adjacent / local train control centers shall actively control the speed of the train on the adjacent / local line according to the activation command from the adjacent / local temporary speed limit server system; Each of the adjacent / local train control centers has a corresponding temporary speed limit jurisdiction area, and each of the adjacent / local train control centers controls the running speed of trains within the corresponding temporary speed limit jurisdiction area; When the temporary speed limit jurisdiction of different adjacent / local train control centers overlaps, the train is controlled by prioritizing the latest train control center.

2. The train control system based on a local temporary speed limit server system according to claim 1, characterized in that, The adjacent temporary speed limit server system and multiple adjacent train control centers are all fixedly installed on the adjacent line operating path of the train; the local temporary speed limit server system and multiple local train control centers are all fixedly installed on the local line operating path of the train.

3. A train control method based on a local temporary speed limit server system, wherein the method is implemented using a train control system based on a local temporary speed limit server system as described in any one of claims 1 to 2, characterized in that, The method includes: Step S1: Mark the boundary train control center of the local line; the boundary train control center refers to the local train control center whose temporary speed limit jurisdiction overlaps with that of the adjacent line. Step S2: Obtain the start command reception status of all adjacent train control centers. If all adjacent train control centers receive the start command, the train enters the local line at normal speed and proceeds to step S4; otherwise, proceed to step S3. Step S3: Check if there is a boundary train control center whose dispatch range overlaps with that of the adjacent line and which has received the start command. If there is, enter the local line at normal speed; if not, enter the local line at a safe speed and proceed to step S4. Step S4: After entering the local line, the local temporary speed limit server system sends a start command to the corresponding local train control center based on external information, and the corresponding local train control center controls the operation of the train.

4. The train control method based on a local temporary speed limit server system according to claim 3, characterized in that, Step S4 includes: when the train enters the local line at a normal speed after step S2, the local temporary speed limit server system does not send a start command to any local train control center. At this time, all local train control centers enable the train to run at a safe speed.

5. A train control method based on a local temporary speed limit server system according to claim 3, characterized in that, Step S4 includes: when the train enters the local line at a normal speed after step S2, and the local temporary speed limit server system sends a start command to the corresponding local train control center, the local train control center causes the train to run in the appropriate manner.

6. A train control method based on a local temporary speed limit server system according to claim 3, characterized in that, Step S4 includes: when the train enters the local line at a safe speed after step S3, and the local temporary speed limit server system does not send a start command to any local train control center, all local train control centers enable the train to run at a safe speed.

7. A train control method based on a local temporary speed limit server system according to claim 3, characterized in that, Step S4 includes: when the train enters the local line at a normal speed after step S3, and the local temporary speed limit server system does not send a start command to any local train control center other than the first boundary train control center, the train will run at a safe speed.

8. A train control method based on a local temporary speed limit server system according to claim 3, characterized in that, Step S4 includes: when the train enters the local line at a safe speed after step S3, and the local temporary speed limit server system sends a start command to the corresponding local train control center, the local train control center causes the train to run in the appropriate manner.

9. A train control method based on a local temporary speed limit server system according to claim 3, characterized in that, Step S4 includes: when the train enters the local line at a normal speed after step S3, and the local temporary speed limit server system sends a start command to the corresponding local train control center, the local train control center causes the train to run in the appropriate manner.

10. A train control method based on a local temporary speed limit server system according to claim 3, characterized in that, Once a train enters the local line at normal speed, the local train control center needs to maintain that normal speed, specifically including: Step Q1: Select any local train control center on the local line; Step Q2: Determine whether the temporary speed limit jurisdiction of the local train control center overlaps with the temporary speed limit jurisdiction of the adjacent line. If there is no overlap, return to step Q1; if there is overlap, proceed to... Step Q3; Step Q3: Determine whether the local train control center has received the start command. If it has, return to step Q1; otherwise, proceed to step Q4. Step Q4: The local temporary speed limit server system sends a start command to the local train control center; Step Q5: Check whether all local train control centers on the local line have been assessed. If not, return to step Q1; if yes, end the process.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements a train control method based on a local temporary speed limit server system as described in any one of claims 3-10.

12. An electronic device, characterized in that, It includes a processor and a memory, wherein the memory stores a computer program, and when the computer program is executed by the processor, it implements a train control method based on a local temporary speed limit server system as described in any one of claims 3-10.

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