Train safety protection methods and systems

Abstract

This invention provides a train safety protection method and system. The method includes: determining whether the over-limit track conditions are met based on the direction of the target turnout and the status of the over-limit inspection section. The over-limit inspection section is determined according to the interlocking table and the next route the train will take. The target turnout includes a first turnout and a second turnout. The first turnout is a turnout within the over-limit inspection section, and the second turnout is a turnout within the main route or protection section connected to the over-limit inspection section in the interlocking table. The train is a CTC (Continuous Traction Control) train. If the over-limit track conditions are not met, safety protection is provided for the train. This invention adds an over-limit inspection function to the area controller (ZC), uses the ZC to check whether the over-limit track conditions are met, and provides safety protection for CTC trains with a risk of side run when the over-limit track conditions are not met, thus avoiding the occurrence of side run hazards and improving train operation safety.

Description

Technical Field

[0001] This invention relates to the field of rail transit technology, and in particular to a train safety protection method and system. Background Technology

[0002] Currently, existing communication-based train control (CBTC) trains use computer interlocking (CI) systems to check for track conditions exceeding limits, including:

[0003] The CI system checks for oversized track conditions when arranging, locking, and opening train routes (including single-train routes and multi-train routes). If the oversized track conditions are not met (the corresponding oversized inspection section is occupied, or the oversized inspection section is locked), the route cannot be opened, the train cannot enter the route, and there is no risk of side-run.

[0004] The CI system checks for over-limit track conditions when locking a protected area. If the over-limit track conditions are not met (the corresponding over-limit inspection section is occupied, or the over-limit inspection section is locked), the protected area cannot be locked. For single-train routes, if the protected area is not locked, the route cannot be opened, trains are prohibited from entering the route, and there is no risk of side-run. For multi-train routes, if the protected area is not locked, the protected area is invalid, the Zone Controller (ZC) calculates the Movement Authority (MA) endpoint at the entrance of the protected area, trains cannot enter the protected area, and there is no risk of side-run.

[0005] The existing CBTC trains, which use a CI system to check for over-limit track conditions, have the following drawbacks:

[0006] 1. When both the over-limit track conditions and the routine multi-train route inspection conditions (e.g., whether the starting signal is open, whether the switches are locked, etc.) are met, the CI (Initial Train Control) can arrange, lock, and open multi-train routes for Continuous Train Control (CTC). After receiving the signal opening information, the ZC (Train Control Center) can calculate the MA (Movement Access) for the train to pass through that signal. The CTC car receives the MA and enters the route under its protection, and the CI normally closes the signal. At this time, if a car occupies the over-limit inspection section, the CI cannot protect the CTC car inside the route, and the ZC does not check the over-limit track conditions when calculating the MA. Therefore, the MA calculated by the ZC for the train is not retracted, and the CTC car continues to move forward under the protection of the MA, which may cause a side runaway hazard.

[0007] 2. When both the over-limit track condition and the routine inspection condition for multi-train routes are met, the CI can lock the protection section for multi-train routes. After ZC receives confirmation of the protection section's validity, it calculates the MA (Mount Assist) for the train to enter the protection section. The CTC train receives the MA and enters the route under its protection, and the CI normally closes the signal. If a train occupies the over-limit inspection section at this time, the CI determines that the protection section does not meet the over-limit track condition and invalidates the protection section; after ZC receives confirmation of the invalid protection section, it retracts the MA calculated for train B to the entrance of the protection section. However, during the process of ZC sending section occupancy information—CI invalidating the protection section—ZC retracting the MA, there is a communication delay between ZC and CI. During this delay, the CTC train can continue to move forward under the protection of the original MA. If it crosses the obstacle point and enters the protection section, a side runaway hazard may occur. Summary of the Invention

[0008] The train safety protection method and system provided by the present invention are used to solve the above-mentioned problems in the prior art. They can achieve safety protection for CTC trains with side-impact risk through ZC (Zero-Cross-Training), avoid the occurrence of side-impact danger, and improve the operation safety of trains.

[0009] The present invention provides a train safety protection method, comprising:

[0010] Based on the direction of the target turnout and the status of the over-limit inspection section, it is determined whether the over-limit track conditions are met. The over-limit inspection section is determined according to the interlocking table and the next route the train will take. The target turnout includes a first turnout and a second turnout. The first turnout is the turnout within the over-limit inspection section, and the second turnout is the turnout within the main route or protection section connected to the over-limit inspection section in the interlocking table. The train is a CTC (Continuous Train Control) train.

[0011] If the conditions for exceeding the track limits are not met, safety protection measures will be implemented for the train.

[0012] According to a train safety protection method provided by the present invention, when it is determined that the over-limit track conditions are not met, the step of providing safety protection for the train includes:

[0013] Calculate movement authorization for the train based on the physical section where the second turnout is located;

[0014] Based on the aforementioned mobility authorization, security measures are implemented for the train.

[0015] According to a train safety protection method provided by the present invention, the step of calculating movement authorization for the train based on the physical section where the second turnout is located includes:

[0016] The movement authorization is calculated for the train based on the entrance location of the physical section, and the destination of the movement authorization cannot exceed the entrance location.

[0017] According to a train safety protection method provided by the present invention, the state of the over-limit inspection section includes:

[0018] First state or second state;

[0019] The first state includes an idle state and an occupied state;

[0020] The second state includes either a non-locked state and a locked state;

[0021] The idle state includes the over-limit inspection section being idle or the over-limit inspection section being occupied by an axle counting fault in the ARB.

[0022] The occupied state refers to all states in the first state except for the idle state.

[0023] According to a train safety protection method provided by the present invention, the opening direction of the target turnout includes:

[0024] Positioning, reversal, and four-way opening.

[0025] The present invention also provides a train safety protection system, comprising: a judgment module and a protection module;

[0026] The judgment module is used to determine whether the over-limit track conditions are met based on the opening direction of the target turnout and the status of the over-limit inspection section. The over-limit inspection section is determined based on the interlocking table and the next route the train passes through. The target turnout includes a first turnout and a second turnout. The first turnout is the turnout within the over-limit inspection section, and the second turnout is the turnout within the main route or protection section connected to the over-limit inspection section in the interlocking table.

[0027] The protection module is used to provide safety protection for the train when it is determined that the over-limit track conditions are not met.

[0028] According to a train safety protection system provided by the present invention, the protection module is further used for:

[0029] Calculate movement authorization for the train based on the physical section where the second turnout is located;

[0030] Based on the aforementioned mobility authorization, security measures are implemented for the train.

[0031] The present invention also provides an electronic device, including a processor and a memory storing a computer program, wherein the processor executes the program to implement the train safety protection method as described above.

[0032] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the train safety protection method as described above.

[0033] The present invention also provides a computer program product, including a computer program that, when executed by a processor, implements the train safety protection method as described above.

[0034] The train safety protection method and system provided by the present invention adds an over-limit inspection function to the area controller ZC, uses ZC to check whether the over-limit track conditions are met, and provides safety protection for CTC trains with side run-off risk when the over-limit track conditions are not met, thereby avoiding the occurrence of side run-off danger and improving the operation safety of trains. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0036] Figure 1 This is a flowchart illustrating the train safety protection method provided by the present invention;

[0037] Figure 2 This is a schematic diagram of an example of main route over-limit inspection provided by the present invention;

[0038] Figure 3 This is a schematic diagram illustrating an example of over-limit inspection of protected areas provided by the present invention;

[0039] Figure 4 This is a schematic diagram of the train safety protection system provided by the present invention;

[0040] Figure 5 This is a schematic diagram of the physical structure of the electronic device provided by the present invention. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0042] The train safety protection method provided by this invention can check for over-limit track conditions through CI before the route is opened or the protected section is locked, thereby achieving safety protection for CTC trains and avoiding the danger of side runaway; when the route is normally opened and the train enters the inner part of the route, ZC checks for over-limit track conditions and achieves safety protection for CTC cars by retracting MA, further avoiding the danger of side runaway. The specific implementation is as follows:

[0043] Figure 1 This is a flowchart illustrating the train safety protection method provided by the present invention, as shown below. Figure 1 As shown, the method includes:

[0044] Step 110: Determine whether the over-limit track conditions are met based on the opening direction of the target turnout and the status of the over-limit inspection section. The over-limit inspection section is determined according to the interlocking table and the next route the train will take. The target turnout includes a first turnout and a second turnout. The first turnout is the turnout within the over-limit inspection section, and the second turnout is the turnout within the main route or protection section connected to the over-limit inspection section in the interlocking table. The train is a CTC (Continuous Train Control) train.

[0045] Step 120: If it is determined that the over-limit track conditions are not met, safety protection measures are taken for the train.

[0046] It should be noted that the subject executing the above method can be a computer device or a regional controller ZC. The following describes the invention in detail using ZC executing the above method as an example.

[0047] In this embodiment of the invention, the determination of whether the over-limit inspection section is occupied or locked by ZC can be specifically as follows: when ZC determines that the over-limit inspection section is in an idle state or that the axle counter fault occupies the ARB, the over-limit inspection section is considered to be in an idle state; otherwise, it is considered to be in an occupied state.

[0048] In this embodiment of the invention, the condition for an oversized track is determined based on the opening direction of the target turnout and the status of the oversized inspection section. The target turnout can specifically refer to the opening direction of the first turnout and the second turnout. The first turnout can specifically refer to the turnouts within the oversized inspection section, for example, Y1 to Yn representing all turnouts within the oversized inspection section. The second turnout can specifically refer to all turnouts within the main route or protection zone, for example, X1 to Xn representing all turnouts within the main route or protection zone. The route can specifically refer to the next route the train will take. After the next route the train will take is determined, the oversized inspection section can be determined based on the connection relationship between the first and second turnouts and the oversized inspection section configured in the interlocking table, for example, represented by Z1 to Zn.

[0049] In this embodiment of the invention, the train can specifically be a continuously controlled train (CTC) train.

[0050] In this embodiment of the invention, ZC can determine whether the main route and the protected area section meet the over-limit track conditions. When checking the over-limit track conditions for the protected area section, if ZC determines that the over-limit track conditions are not met, the protected area section should be set to invalid.

[0051] It should be noted that the opening directions of turnout X1, ..., and turnout Xn are logically ANDed, the opening directions of turnout Y1, ..., and turnout Yn are logically ANDed, and the states of over-limit inspection section Z1, ..., and over-limit inspection section Zn are logically ORed.

[0052] In this embodiment of the invention, when ZC determines that the over-limit track conditions are not met, it provides safety protection for CTC train. Specifically, the safety protection may refer to the train recalculating the movement authorization and sending the movement authorization to CTC train. After receiving the movement authorization, CTC train performs safety protection according to the movement authorization.

[0053] Furthermore, in one embodiment, the opening direction of the target turnout includes:

[0054] Positioning, reversal, and four-way opening.

[0055] In this embodiment of the invention, the opening direction of the target turnout can specifically include positioning, reversal, and four-way opening.

[0056] In other embodiments of the present invention, referring to the logic of CI checking for over-limit track conditions, an over-limit check function is added to ZC. The turnouts and their opening directions involved in the over-limit check can be determined according to the interlocking table. Specifically, this over-limit check function may include: if the opening direction of turnout X1 is oriented / reverse, ..., the opening direction of turnout Xn is oriented / reverse, the opening direction of turnout Y1 is oriented / reverse (or four-way), ..., the opening direction of turnout Yn is oriented / reverse (or four-way), and the over-limit check sections Z1, ..., Zn are locked or occupied, then ZC determines that the over-limit track conditions are not met. When calculating MA for CTC trains, the entrance of the physical section where turnout X is located is designated as a danger point.

[0057] It should be noted that when the turnout in the over-limit inspection section is in four directions, it is treated as a safety guide, which is equivalent to meeting the over-limit inspection rules.

[0058] The train safety protection method provided by this invention adds an over-limit inspection function to the area controller ZC, uses ZC to check whether the over-limit track conditions are met, and provides safety protection for CTC trains with a risk of side run when the over-limit track conditions are not met, thereby avoiding the occurrence of side run danger and improving the operation safety of trains.

[0059] Furthermore, in one embodiment, when it is determined that the over-limit track conditions are not met, the safety protection for the train may specifically include:

[0060] Calculate movement authorization for the train based on the physical section where the second turnout is located;

[0061] Based on the aforementioned mobility authorization, security measures are implemented for the train.

[0062] In this embodiment of the invention, when ZC determines that the over-limit track conditions are not met, the safety protection for the CTC train can be specifically achieved by calculating the movement authorization for the CTC train based on the physical section where the second turnout is located within the main route or the protected section.

[0063] In this embodiment of the invention, ZC sends the calculated mobility authorization to the CTC train, and the CTC train performs security protection according to the mobility authorization after receiving the mobility authorization sent by ZC.

[0064] Furthermore, in one embodiment, calculating the movement authorization for the train based on the physical section where the second turnout is located may specifically include:

[0065] The movement authorization is calculated for the train based on the entrance location of the physical section, and the destination of the movement authorization cannot exceed the entrance location.

[0066] In this embodiment of the invention, ZC calculates the movement authorization for the CTC train based on the entrance position of the physical section where the second turnout is located within the main route or protected section. The endpoint of the calculated movement authorization cannot exceed the entrance position.

[0067] For example, Figure 2 This is a schematic diagram of an example of main route over-limit inspection provided by the present invention, such as... Figure 2 As shown, the ZC over-limit check rules can be obtained from the interlocking table:

[0068] 1. If turnout P06 is in the fixed direction, turnout P02 is in the fixed direction (or four-way open), and turnout P04 is in the fixed direction (or four-way open), and the over-limit inspection section 04DG is locked or occupied, then when ZC calculates MA for CTC trains, the entrance location of the physical section 06DG where turnout P06 is located will be taken as the danger point.

[0069] 2. If the opening direction of turnout P06 is in the normal position and the opening direction of turnout P04 is in the reverse position (or four-way open), and the over-limit inspection section 04DG is locked or occupied (in an occupied state), then when ZC calculates MA for CTC train, it will take the entrance position of the physical section 06DG where turnout P06 is located as the danger point.

[0070] After adding ZC over-limit check:

[0071] When the next track S04 is already open, and train B (a CTC train) has entered the maximum safe front end of track S04, if train A runs a red light and enters 04DG, ZC determines that the over-limit track conditions are not met and designates the entrance of physical section 06DG, where turnout P06 is located, as a danger point. ZC calculates the MA for train B and retracts it to the entrance of 06DG. Upon receiving this, train B implements safety protection according to the retracted MA.

[0072] For example, Figure 3 This is a schematic diagram illustrating an example of an over-limit inspection of a protected section provided by the present invention, such as... Figure 3 As shown, the ZC over-limit check rules can be obtained from the interlocking table:

[0073] 1. If the opening direction of turnout P02 is fixed, the opening direction of turnout P04 is fixed, and the opening direction of turnout P06 is fixed (or four-way open), and the over-limit inspection section 06DG is locked or occupied, then when ZC calculates MA for CTC trains, it will treat the entrance of the physical section 04DG where turnouts P02 and P04 are located as danger points and set the protection section as invalid.

[0074] After adding ZC over-limit check:

[0075] When the protected section is locked, train B (which is a CTC train) receives a valid MA for the protected section and enters the inner part of the route; at this time, routes S04-S02 can be locked in sequence, and route S04 is normally open.

[0076] If train A is a CTC car, then the MA received by train A has been retracted to the position of the 06DG entrance. After receiving the MA, train A will carry out safety protection according to the retracted MA. If train A is a non-CTC car, after train A enters the S04 route and the car body presses into 06DG, ZC determines that the over-limit track conditions are not met, invalidates the protection section, and retracts the MA of train B to the entrance of the 04DG protection section. After receiving the MA, train B will carry out safety protection according to the retracted MA.

[0077] The train safety protection method provided by this invention can, when a CTC train has entered the inside of the route, check the over-limit track conditions by ZC and determine that the over-limit track conditions are not met, and promptly protect the CTC train by retracting MA to avoid the occurrence of side impact danger. At the same time, it avoids the problem that ground equipment cannot protect against over-limit track conditions after the CTC train has entered the inside of the route, thus improving the system safety.

[0078] Furthermore, in one embodiment, the state of the over-limit inspection section may specifically include:

[0079] First state or second state;

[0080] The first state includes an idle state and an occupied state;

[0081] The second state includes either a non-locked state and a locked state;

[0082] The idle state includes the over-limit inspection section being idle or the over-limit inspection section being occupied by an axle counting fault in the ARB.

[0083] The occupied state refers to all states in the first state except for the idle state.

[0084] In this embodiment of the invention, the state of the over-limit inspection section can be specifically a first state or a second state. The first state can specifically include an occupied state and an idle state, and the second state can specifically include an unlocked state and a locked state.

[0085] In this embodiment of the invention, ZC can specifically determine whether the over-limit check section is occupied by judging the state of the over-limit check section. Specifically:

[0086] If ZC determines that the over-limit check section is in an idle state, then it can be determined that the over-limit check section is not occupied.

[0087] If ZC determines that the over-limit check section is in any of the first states other than the idle state, then it can be determined that the over-limit check section is in an occupied state (i.e., the over-limit check section has been occupied).

[0088] In this embodiment of the invention, ZC can specifically determine whether the over-limit inspection section is in a locked state or an unlocked state by judging the state of the over-limit inspection section.

[0089] The train safety protection method provided by this invention determines whether the over-limit inspection section is locked or occupied based on its status. This lays the foundation for subsequent determination of whether the over-limit track conditions are met based on the opening direction of the target turnout, and for providing safety protection for CTC trains when the over-limit track conditions are not met, thereby avoiding the risk of CTC train side-running and improving the operational safety of CTC trains.

[0090] The train safety protection system provided by the present invention is described below. The train safety protection system described below can be referred to in correspondence with the train safety protection method described above.

[0091] Figure 4 This is a schematic diagram of the train safety protection system provided by the present invention, as shown below. Figure 4 As shown, it includes:

[0092] Judgment module 410 and protection module 411;

[0093] The judgment module 410 is used to determine whether the over-limit track conditions are met based on the opening direction of the target turnout and the status of the over-limit inspection section. The over-limit inspection section is determined based on the interlocking table and the next route the train passes through. The target turnout includes a first turnout and a second turnout. The first turnout is the turnout within the over-limit inspection section, and the second turnout is the turnout within the main route or protection section connected to the over-limit inspection section in the interlocking table. The train is a continuous train control (CTC) train.

[0094] The protection module 411 is used to provide safety protection for the train when it is determined that the over-limit track conditions are not met.

[0095] The train safety protection system provided by this invention adds an over-limit inspection function to the area controller ZC. The ZC checks whether the over-limit track conditions are met, and when the over-limit track conditions are not met, it provides safety protection for CTC trains with a risk of side run, thereby avoiding the occurrence of side run hazards and improving the operational safety of trains.

[0096] Furthermore, in one embodiment, the protection module 411 may also be specifically used for:

[0097] Calculate movement authorization for the train based on the physical section where the second turnout is located;

[0098] Based on the aforementioned mobility authorization, security measures are implemented for the train.

[0099] The train safety protection system provided by this invention can check the over-limit track conditions when a CTC train has entered the route, and determine that the over-limit track conditions are not met. It can then promptly protect the CTC train by retracting the MA to avoid the risk of side impact. At the same time, it avoids the problem that ground equipment cannot protect against over-limit track conditions after the CTC train has entered the route, thus improving the system's safety.

[0100] Figure 5 This is a schematic diagram of the physical structure of an electronic device provided by the present invention, such as... Figure 5 As shown, the electronic device may include a processor 510, a communication interface 511, a memory 512, and a bus 513, wherein the processor 510, the communication interface 511, and the memory 512 communicate with each other via the bus 513. The processor 510 can call logical instructions in the memory 512 to execute the following methods:

[0101] Based on the direction of the target turnout and the status of the over-limit inspection section, it is determined whether the over-limit track conditions are met. The over-limit inspection section is determined according to the interlocking table and the next route the train will take. The target turnout includes a first turnout and a second turnout. The first turnout is the turnout within the over-limit inspection section, and the second turnout is the turnout within the main route or protection section connected to the over-limit inspection section in the interlocking table. The train is a CTC (Continuous Train Control) train.

[0102] If the conditions for exceeding the track limits are not met, safety protection measures will be implemented for the train.

[0103] Furthermore, the logical instructions in the aforementioned memory can be implemented as software functional units and sold or used as independent products, and can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer power supply (which may be a personal computer, server, or network power supply, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0104] Furthermore, this invention discloses a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium. The computer program includes program instructions, and when these instructions are executed by a computer, the computer can execute the train safety protection methods provided in the above-described method embodiments, such as including:

[0105] Based on the direction of the target turnout and the status of the over-limit inspection section, it is determined whether the over-limit track conditions are met. The over-limit inspection section is determined according to the interlocking table and the next route the train will take. The target turnout includes a first turnout and a second turnout. The first turnout is the turnout within the over-limit inspection section, and the second turnout is the turnout within the main route or protection section connected to the over-limit inspection section in the interlocking table. The train is a CTC (Continuous Train Control) train.

[0106] If the conditions for exceeding the track limits are not met, safety protection measures will be implemented for the train.

[0107] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to perform the train safety protection methods provided in the above embodiments, including, for example:

[0108] Based on the direction of the target turnout and the status of the over-limit inspection section, it is determined whether the over-limit track conditions are met. The over-limit inspection section is determined according to the interlocking table and the next route the train will take. The target turnout includes a first turnout and a second turnout. The first turnout is the turnout within the over-limit inspection section, and the second turnout is the turnout within the main route or protection section connected to the over-limit inspection section in the interlocking table. The train is a CTC (Continuous Train Control) train.

[0109] If the conditions for exceeding the track limits are not met, safety protection measures will be implemented for the train.

[0110] The system embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0111] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., including several instructions to cause a computer power supply (which may be a personal computer, server, or network power supply, etc.) to execute the methods described in various embodiments or some parts of the embodiments.

[0112] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A train safety protection method, characterized in that, include: Based on the direction of the target turnout and the status of the over-limit inspection section, it is determined whether the over-limit track conditions are met. The over-limit inspection section is determined according to the interlocking table and the next route the train will take. The target turnout includes a first turnout and a second turnout. The first turnout is the turnout within the over-limit inspection section, and the second turnout is the turnout within the main route or protection section connected to the over-limit inspection section in the interlocking table. The train is a CTC (Continuous Train Control) train. The directions of any two target turnouts are logically ANDed, and the statuses of any two over-limit inspection sections are logically ORed. If it is determined that the above-limit track conditions are not met, safety protection measures will be implemented for the train, including: Based on the entrance location of the physical section where the second turnout is located, a movement authorization is calculated for the train, and the endpoint of the movement authorization cannot exceed the entrance location; Based on the aforementioned mobility authorization, security measures are implemented for the train.

2. The train safety protection method according to claim 1, characterized in that, The status of the over-limit inspection section includes: First state or second state; The first state includes an idle state and an occupied state; The second state includes an unlocked state and a locked state; The idle state includes the over-limit inspection section being idle or the over-limit inspection section being occupied by an axle counting fault in the ARB. The occupied state refers to all states in the first state except for the idle state.

3. The train safety protection method according to any one of claims 1-2, characterized in that, The opening direction of the target turnout includes: Positioning, reversal, and four-way opening.

4. A train safety protection system, characterized in that, include: Judgment module and protection module; The judgment module is used to determine whether the over-limit track conditions are met based on the opening direction of the target turnout and the status of the over-limit inspection section. The over-limit inspection section is determined according to the interlocking table and the next route the train will take. The target turnout includes a first turnout and a second turnout. The first turnout is the turnout within the over-limit inspection section, and the second turnout is the turnout within the main route or protection section connected to the over-limit inspection section in the interlocking table. The train is a continuous train control (CTC) train. The opening directions of any two target turnouts are logically ANDed, and the statuses of any two over-limit inspection sections are logically ORed. The protection module is used to provide safety protection for the train when it is determined that the over-limit track conditions are not met, including: calculating the movement authorization for the train based on the entrance position of the physical section where the second turnout is located, wherein the endpoint of the movement authorization cannot exceed the entrance position; Based on the aforementioned mobility authorization, security measures are implemented for the train.

5. An electronic device comprising a processor and a memory storing a computer program, characterized in that, When the processor executes the computer program, it implements the train safety protection method according to any one of claims 1 to 3.

6. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the train safety protection method as described in any one of claims 1 to 3.

7. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the train safety protection method as described in any one of claims 1 to 3.

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