CN113401186B - Switch resource management method and device - Google Patents

Abstract

The invention provides a turnout resource management method and a turnout resource management device, wherein the method comprises the following steps: if the fact that a previous train has cleared a turnout movable region in a target turnout region is detected, and a turnout unlocking command sent by a region controller ZC is received, unlocking the turnout movable region, wherein the target turnout region comprises a plurality of logic sections, the logic sections comprise the turnout movable region, a turnout front boundary region, a turnout rear straight boundary region and a turnout rear lateral boundary region, and the turnout unlocking command is sent after the ZC detects that the previous train meets preset unlocking conditions; and after the turnout movable area is unlocked, using the logic section as a unit to transact another forward route which is different from the previous train in the target turnout area for the next train. The method and the device provided by the invention solve the defect that the extra time consumption for resource release is long due to the rough resource management in the existing system, and greatly improve the utilization rate of the system to turnout resources.

Description

Switch resource management method and device

Technical Field

The invention relates to the technical field of rail transit, in particular to a turnout resource management method and device.

Background

In urban rail transit, trains frequently pass through switches, which are line connection devices that enable the trains to travel from one track to another. In practical application, the turnout has great influence on the running condition of the train, so that reasonable distribution of turnout resources is particularly important. Currently, CBTC systems (Communication Based Train Control System, communication-based train control systems) are commonly employed to manage switch resources.

The existing CBTC system takes the turnout axle counting section as the minimum unit when managing turnout area resources, and the system side can handle the approach of different paths of the turnout area resources for the next train only after the last train goes out of the complete turnout axle counting section. When the existing system evaluates the same resource for two trains according to different paths, the interval time has longer extra time consumption, so that larger train turn-back interval is caused, and the bottleneck for restricting the improvement of the operation performance is formed.

Disclosure of Invention

The invention provides a turnout resource management method and device, which are used for solving the defect of long additional time consumption for resource release in the prior art and realizing the improvement of the utilization rate of turnout resources.

The invention provides a turnout resource management method, which is applied to an interlocking subsystem CI, and comprises the following steps:

If the fact that a previous train has cleared a turnout movable region in a target turnout region is detected, and a turnout unlocking command sent by a region controller ZC is received, unlocking the turnout movable region, wherein the target turnout region comprises a plurality of logic sections, the logic sections comprise the turnout movable region, a turnout front boundary region, a turnout rear straight boundary region and a turnout rear lateral boundary region, and the turnout unlocking command is sent after the ZC detects that the previous train meets preset unlocking conditions;

and after the turnout movable area is unlocked, using the logic section as a unit to transact another forward route which is different from the previous train in the target turnout area for the next train.

According to the switch resource management method provided by the invention, the logic section is used as a unit to handle another approach different from the previous train in the target switch area for the next train, and the method further comprises the following steps:

and performing overrun inspection on the corresponding logic section based on the approach of the next train and a preset overrun inspection principle.

According to the turnout resource management method provided by the invention, the overrun checking principle comprises the following steps:

If the approach of the next train comprises a first side impact protection area or only comprises a partial area containing a turnout movable area in the first side impact protection area, checking the use state of a logic section of the area except the turnout movable area in the second side impact protection area;

if the approach of the next train only comprises the area except the turnout movable area in the first side impact protection area, checking the use state of the logic section where the second side impact protection area is located;

the first side impact protection area and the second side impact protection area are determined based on the point of the switch of the target switch, the mapping point of the police impact mark position of the target switch on the straight track behind the switch, and the mapping point of the police impact mark position on the side track behind the switch.

According to the switch resource management method provided by the invention, the logic section is used as a unit to handle another approach different from the previous train in the target switch area for the next train, and the method further comprises the following steps:

if the target turnout area further comprises a crossing area, crossing inspection is performed on the corresponding logic section based on the approach of the next train and a preset crossing inspection principle.

According to the turnout resource management method provided by the invention, the crossing area comprises a first crossing protection area and a second crossing protection area which are respectively positioned on different tracks;

the cross-checking principle includes:

and if the route of the next train completely or partially comprises the first cross protection area, checking the use state of the logic section where the second cross protection area is located.

The invention also provides a turnout resource management method which is applied to the zone controller ZC, and the method comprises the following steps:

detecting whether a previous train meets a preset unlocking condition or not;

if the previous train meets the preset unlocking condition, a switch unlocking command is sent to an interlocking subsystem CI, so that the CI can unlock the switch movable area based on the detected switch movable area in the previous train out of the target switch area and the received switch unlocking command, and after the switch movable area is unlocked, another approach different from the previous train in the target switch area is handled for the next train by taking a logic section as a unit; the target switch region includes a plurality of logical sections including the switch movable region, a switch front boundary region, a switch rear straight boundary region, and a switch rear side boundary region.

According to the turnout resource management method provided by the invention, the method further comprises the following steps:

if the previous train meets the preset unlocking condition, the previous train has cleared the first side impact protection area, and the distance from the most unfavorable parking position of the previous train to the entrance of the first side impact protection area is greater than the backward sliding history distance, calculating the movement authorization comprising the second side impact protection area for the next train;

the first side impact protection area and the second side impact protection area are determined based on a point of a switch of the target switch, a mapping point of a warning mark position of the target switch on a straight track behind the switch, and a mapping point of a warning mark position on a side track behind the switch; the most adverse stopping location is determined based on the current location, speed, and speed direction of the previous train.

According to the turnout resource management method provided by the invention, the target turnout area further comprises a crossing area;

the method further comprises the steps of:

if the previous train meets the preset unlocking condition, the previous train has cleared the first cross protection area, and the distance from the most unfavorable parking position of the previous train to the entrance of the first cross protection area is greater than the backward sliding history distance, calculating the movement authorization comprising the second cross protection area for the next train;

Wherein the intersection region comprises the first intersection protection region and the second intersection protection region which are respectively positioned on different tracks; the most adverse stopping location is determined based on the current location, speed, and speed direction of the previous train.

The invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the switch resource management method according to any one of the above when executing the program.

The present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the switch resource management method as described in any of the above.

According to the turnout resource management method and device, the target turnout area is subdivided into the logic sections, and the logic sections are used as units for handling and unlocking the way, so that the fine management of turnout resources is realized, the defect that extra time is consumed for resource release due to rough management in the existing system is overcome, the utilization rate of the turnout resources by the system is greatly improved, the usability of the system is obviously enhanced, the unlocking of the turnout movable area is determined based on the dual detection of CI and ZC, and the safety of the system is ensured.

Drawings

In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic flow chart of a switch resource management method provided by the invention;

FIG. 2 is one of the exemplary diagrams of a target switch area provided by the present invention;

FIG. 3 is a second exemplary illustration of a target switch area provided by the present invention;

FIG. 4 is a second flow chart of the switch resource management method according to the present invention;

FIG. 5 is a schematic diagram of a switch resource management device according to the present invention;

FIG. 6 is a second schematic diagram of a switch resource management device according to the present invention;

fig. 7 is a schematic structural diagram of an electronic device provided by the present invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The CBTC system is a train control system which has a wide application trend in both railway systems and urban rail systems at present. The system adopts a control architecture taking ground equipment as a core, and CI (computer Interlocking, computer interlocking subsystem) controls ground turnouts, shielding doors, annunciators and the like; the ZC (Zone controller) forms a movement authorization through the state of the ground track equipment and the position information reported by the trains, and sends the movement authorization to all the trains in the Zone, thereby protecting the running of the trains.

However, when the existing CBTC system assesses the same resource for two trains according to different paths, the interval time has longer additional time consumption, which results in larger train turn-back interval, and becomes a bottleneck for restricting the improvement of the running performance. For example, if the margin of the installation position of the axle counting magnetic head of the axle counting section of the turnout is larger from the movable area of the turnout due to the field implementation condition, even if the system has no safety risk for the resource of the movable area of the turnout for the next train after the previous train leaves the movable area of the turnout, the system still needs to wait for the previous train to leave the movable area boundary of the turnout to the area between the axle counting magnetic heads, and the additional time consumption is longer; if the switch axle counting section comprises a plurality of groups of switches such as switch 1, switch 2, switch 3 and the like, even if the movable area of the switch 1 is cleared by the last train, the system has no safety risk for the next train to sign the movable area resource of the switch 1, but still needs to wait for the clear and complete switch axle counting section of the last train, and the additional time consumption is long.

In this regard, the embodiment of the invention provides a turnout resource management method. Fig. 1 is a schematic flow chart of a switch resource management method provided by the present invention, as shown in fig. 1, an execution subject of the method is an interlock subsystem CI, and the method includes:

step 110, if it is detected that the previous train has cleared the movable switch area in the target switch area and a switch unlocking command sent by the area controller ZC is received, unlocking the movable switch area, wherein the target switch area comprises a plurality of logic sections, the plurality of logic sections comprise the movable switch area, a front switch boundary area, a rear straight boundary area and a rear switch lateral boundary area, and the switch unlocking command is sent after the ZC detects that the previous train meets a preset unlocking condition;

and 120, after the movable turnout area is unlocked, another approach different from the previous train in the target turnout area is handled for the next train by taking the logic section as a unit.

Here, the target switch area is a switch area where resource management is required. It should be noted that, in the embodiment of the present invention, the type of the switch is not specifically limited, when the target switch is a single switch, the target switch area may be directly processed, and when the target switch is another switch such as a symmetrical switch, a three switch, or an alternate switch, the target switch area needs to be split into multiple single switch areas in advance, and then the multiple single switch areas are respectively processed.

Specifically, the fact that the existing system has long extra time consumption in the interval time when the same resource is acquired for two trains according to different paths is considered, so that a large train turning-back interval is caused, and train running efficiency is greatly reduced. Aiming at the problem, the embodiment of the invention subdivides the target turnout area into a plurality of logic sections, and the plurality of the divided logic sections can comprise a turnout movable area, a turnout front boundary area, a turnout rear straight boundary area and a turnout rear side boundary area aiming at each single turnout area, and the turnout resource management is carried out by taking the logic sections as units, so that the fine management of the turnout resource is realized. Here, the movable region of the switch, namely, the region between the front boundary region of the switch, the straight boundary region of the switch and the lateral boundary region of the switch, is movable in the track position and is controlled by the switch machine; outside this area, the track position is fixed, not controlled by the switch machine. When the boundary region before the fork, the boundary region straight after the fork and the boundary region sideways after the fork are arranged, a certain safety margin should be considered.

On the basis, if the CI detects that the previous train has cleared the logic section of the movable area of the turnout in the target turnout area through the logic judging function of the CI, and receives a turnout unlocking command sent by the ZC, unlocking operation can be performed on the logic section of the movable area of the turnout, and preparation is made for the next train to enter, so that the train interval duration is shortened, and the utilization rate of turnout resources is improved. Here, the switch unlocking command may be sent by the ZC after detecting that the previous train meets a preset unlocking condition, and is used to characterize that the ZC allows unlocking of the movable area of the switch.

After the switch movable area is unlocked, the CI may handle another forward route in the target switch area for the next train in logical section units, e.g., a lateral route in the target switch area for the next train if the previous train is straight into the track as it passes through the switch. Here, the approach may include a main approach, a protection section, etc., which is not particularly limited in the embodiment of the present invention.

Further, the preset unlocking condition may include that, in addition to the preceding train having cleared the switch movable area, a distance from the most unfavorable parking position of the preceding train to the entrance of the switch movable area is greater than the backward travel history distance. Here, the most unfavorable stopping position is considered the position where the train stops, i.e. if the train emergency braking is currently triggered immediately. The most unfavorable stopping position can be calculated according to the current position, speed and speed direction of the train. When the distance from the most unfavorable parking position of the front train to the entrance of the turnout movable area is larger than the backward sliding history distance, the possibility that the train slides into the turnout movable area after backward sliding is not existed can be determined.

According to the method provided by the embodiment of the invention, the target turnout area is subdivided into a plurality of logic sections, and the logic sections are used as units for handling and unlocking the approach, so that the fine management of turnout resources is realized, the defect that extra time is consumed for resource release caused by extensive management of resources in the existing system is overcome, the utilization rate of the turnout resources by the system is greatly improved, the usability of the system is obviously enhanced, the unlocking of the movable area of the turnout is determined based on the dual detection of CI and ZC, and the safety of the system is ensured.

Based on any of the above embodiments, step 120 further includes, prior to:

and performing overrun inspection on the corresponding logic section based on the route of the next train and a preset overrun inspection principle.

Specifically, considering that the existing CBTC system takes the axle counting section as the minimum unit when managing the resources of the overrun area, the system side can handle the routes of different paths in the overrun area for the next train only after the previous train leaves the axle counting section covered by the overrun area. If the installation position of the axle counting magnetic head is larger in margin from the overrun area due to the field implementation condition, even if the system has no safety risk for the overrun area for the next train after the previous train exits the overrun area, the system still needs to wait for the boundary of the overrun area of the previous train to the area between the axle counting magnetic heads, and the additional time consumption is longer.

Aiming at the problem, before the next train handles the route, the embodiment of the invention sets the CI to carry out the overrun inspection on the corresponding logic section according to the preset route of the next train and the preset overrun inspection principle, and the CI handles the route for the next train after the inspection is passed, thereby realizing the management of overrun area resources by taking the logic section as the minimum unit and further shortening the train interval duration. Here, the overrun checking principle is used to check the use state of the logical section included in the overrun area, thereby preventing train side collision.

Based on any of the above embodiments, the overrun check principle includes:

if the approach of the next train comprises a first side impact protection area or only comprises a partial area containing a turnout movable area in the first side impact protection area, checking the use state of a logic section of the area except the turnout movable area in the second side impact protection area;

if the approach of the next train only comprises the area except the turnout movable area in the first side impact protection area, checking the use state of the logic section where the second side impact protection area is located;

the first side impact protection area and the second side impact protection area are determined based on the point of the switch of the target switch, the mapping point of the police impact mark position of the target switch on the straight track behind the switch, and the mapping point of the police impact mark position on the side track behind the switch.

Specifically, in order to realize the fine management of the overrun area resource, in the embodiment of the invention, according to the position of the turnout point of the target turnout in advance, the mapping point of the warning mark position of the target turnout on the straight track behind the turnout, namely the straight strand, corresponds to the warning mark position, and the mapping point of the warning mark position on the side track behind the turnout, namely the side strand, corresponds to the warning mark position, so that the overrun area is split into the straight overrun protection area behind the turnout and the side overrun protection area behind the turnout. It should be noted that, when the first side impact protection area is the straight after-fork overrun protection area, the second side impact protection area is the lateral after-fork overrun protection area; when the first side impact protection area is the fork rear side overrun protection area, the second side impact protection area is the fork rear direct overrun protection area.

On this basis, the overrun checking principle may include the following principle: if CI needs to solicit all line resources contained in the first side impact protection area by means of main route, protection area and the like, checking the use state of the logic area of the second side impact protection area except the turnout movable area; if CI needs to only solicit the partial area including the movable area of the turnout in the first side impact protection area by means of main way, protection area and the like, checking the use state of the logic area of the area except the movable area of the turnout in the second side impact protection area; if CI needs to only sign the area except the movable area of the turnout in the first side impact protection area by means of main way, protection area and the like, checking the use state of the logic area where the second side impact protection area is located. Here, the use state may include an occupied state, a locked state, and the like.

For example, fig. 2 is one of exemplary diagrams of a target switch area provided by the present invention, in which a movable switch area is a logic section 1 in the diagram, a front switch boundary area is a logic section 2 in the diagram, a rear switch straight boundary area is a logic section 3 in the diagram, a rear switch side boundary area is a logic section 4 in the diagram, and a first side impact protection area and a second side impact protection area are corresponding to two dashed line box areas in the diagram. As shown in fig. 2, if the first side impact protection area is a horizontal dashed box area in the figure, the logic sections where it is located are 3 and 1, and the logic sections where the second side impact protection area is located are 4 and 1. If CI evaluates all line resources contained in the first side impact protection area, the overrun checking principle should check that the logic section 4 is unoccupied and unlocked; if CI only evaluates line resources in the first side-impact protection area other than logical sector 1, then logical sectors 4 and 1 should be checked for unoccupied and unlocked.

Based on any of the above embodiments, step 120 further includes, prior to:

if the target turnout area also comprises a crossing area, the corresponding logic section is subjected to crossing inspection based on the approach of the next train and a preset crossing inspection principle.

Specifically, when the target turnout is a common crossover in engineering application, after the target turnout area is split in advance, a plurality of single turnout areas are obtained, and the crossover area is also obtained. The existing CBTC system takes the axle counting section as the minimum unit when managing the cross area resource, and the system side can handle the routes of different paths of the cross area for the next train only after the previous train leaves the axle counting section covered by the cross area. Therefore, even if the system has no safety risk for the next train to assess the crossing area after the previous train clears the crossing area, it is still necessary to wait for all the axle counting sections covered by the previous train clearing crossing area, and the additional time is long.

Aiming at the problem, before the next train handles the route, the CI is set to perform cross check on the corresponding logic section according to the preset route of the next train and the preset cross check principle, and the CI handles the route for the next train after the check is passed, so that the management of cross area resources by taking the logic section as the minimum unit is realized, and the train interval duration is further shortened. Here, the crossing checking principle is used to check the use state of the logical section included in the crossing area, thereby preventing the train from colliding with the rest of the trains on the crossing track.

Based on any of the above embodiments, the intersection region includes a first intersection protection region and a second intersection protection region located on different tracks, respectively;

the cross-checking principle includes:

and if the route of the next train completely or partially comprises the first cross protection area, checking the use state of the logic section where the second cross protection area is located.

Specifically, in order to achieve fine management of cross area resources, in the embodiment of the invention, a cross area is split into a first cross protection area and a second cross protection area in advance according to a train passing path, and the first cross protection area and the second cross protection area are respectively positioned on two tracks at the cross area. Further, the first and second crossover protection zones may be projected zones of a train body on another track crossing a track where the train runs on the track at the crossover zone.

On this basis, the cross-checking principle may include the following: if the main route of the next train comprises the first cross protection area entirely or partially, then all logic sections where the second cross protection area related to the cross protection area is located should be listed as the cross check condition of the main route, and the CI checks the use state of all the logic sections before handling the main route for the next train; if the protection section of the next train contains the first cross protection area in whole or in part, then all logic sections where the second cross protection area associated with the cross protection area is located should be listed as the cross check condition of the protection section, and the CI checks the usage status of all logic sections before handling the protection section for the next train. Here, the use state may include an occupied state, a locked state, and the like.

For example, fig. 3 is a second exemplary diagram of a target switch area provided by the present invention, where the target switch area may be split into four single switch areas and an intersection area, and the intersection area may be further subdivided into a first intersection protection area and a second intersection protection area, where the first intersection protection area and the second intersection protection area are two dashed box areas in the corresponding diagram. As shown in fig. 3, if the first crossover protection zone is a dashed box area on the AD segment in the figure, it is located in logical sections 7 and 11, and the second crossover protection zone is located in logical sections 4 and 13. If the first cross guard area is fully or partially contained within the main way or guard section of the next train, the cross check principle should check that logical sections 4 and 13 are unoccupied and unlocked.

Based on any one of the embodiments, the embodiment of the present invention provides a switch resource management method. Fig. 4 is a second flow chart of the switch resource management method provided by the present invention, as shown in fig. 4, the execution body of the method is a zone controller ZC, and the method includes:

step 210, detecting whether a previous train meets a preset unlocking condition;

step 220, if the previous train meets the preset unlocking condition, a switch unlocking command is sent to the interlocking subsystem CI, so that the CI unlocks the switch movable area based on the detected switch movable area in the previous train out of the target switch area and the received switch unlocking command, and after the switch movable area is unlocked, another approach different from the previous train in the target switch area is handled for the next train by taking a logic section as a unit; the target switch area comprises a plurality of logic sections, wherein the plurality of logic sections comprise a switch movable area, a switch front boundary area, a switch rear straight boundary area and a switch rear side boundary area.

Here, the target switch area is a switch area where resource management is required. It should be noted that, in the embodiment of the present invention, the type of the switch is not specifically limited, when the target switch is a single switch, the target switch area may be directly processed, and when the target switch is another switch such as a symmetrical switch, a three switch, or an alternate switch, the target switch area needs to be split into multiple single switch areas in advance, and then the multiple single switch areas are respectively processed.

Specifically, the fact that the existing system has long extra time consumption in the interval time when the same resource is acquired for two trains according to different paths is considered, so that a large train turning-back interval is caused, and train running efficiency is greatly reduced. Aiming at the problem, the embodiment of the invention subdivides the target turnout area into a plurality of logic sections, and the plurality of the divided logic sections can comprise a turnout movable area, a turnout front boundary area, a turnout rear straight boundary area and a turnout rear side boundary area aiming at each single turnout area, and the turnout resource management is carried out by taking the logic sections as units, so that the fine management of the turnout resource is realized. Here, the movable region of the switch, namely, the region between the front boundary region of the switch, the straight boundary region of the switch and the lateral boundary region of the switch, is movable in the track position and is controlled by the switch machine; outside this area, the track position is fixed, not controlled by the switch machine. When the boundary region before the fork, the boundary region straight after the fork and the boundary region sideways after the fork are arranged, a certain safety margin should be considered.

On the basis, the ZC firstly detects whether the previous train meets the preset unlocking condition, and when the ZC detects that the previous train meets the preset unlocking condition, the ZC can send a switch unlocking command to the CI, namely the ZC is allowed to unlock the switch movable area. And then, the CI receives a switch unlocking command sent by the ZC, and if the CI detects that the previous train has cleared the logic section of the movable switch area in the target switch area through the logic judgment function of the CI, the CI can execute unlocking operation on the logic section of the movable switch area to prepare for the next train to enter, so that the train interval time is shortened, and the utilization rate of switch resources is improved.

After the switch movable area is unlocked, the CI may handle another forward route in the target switch area for the next train in logical section units, e.g., a lateral route in the target switch area for the next train if the previous train is straight into the track as it passes through the switch. Here, the approach may include a main approach, a protection section, etc., which is not particularly limited in the embodiment of the present invention.

Further, the preset unlocking condition may include that, in addition to the preceding train having cleared the switch movable area, a distance from the most unfavorable parking position of the preceding train to the entrance of the switch movable area is greater than the backward travel history distance. Here, the most unfavorable stopping position is considered the position where the train stops, i.e. if the train emergency braking is currently triggered immediately. The most unfavorable stopping position can be calculated according to the current position, speed and speed direction of the train. When the distance from the most unfavorable parking position of the front train to the entrance of the turnout movable area is larger than the backward sliding history distance, the possibility that the train slides into the turnout movable area after backward sliding is not existed can be determined.

According to the method provided by the embodiment of the invention, the target turnout area is subdivided into a plurality of logic sections, and the logic sections are used as units for handling and unlocking the approach, so that the fine management of turnout resources is realized, the defect that extra time is consumed for resource release caused by extensive management of resources in the existing system is overcome, the utilization rate of the turnout resources by the system is greatly improved, the usability of the system is obviously enhanced, the unlocking of the movable area of the turnout is determined based on the dual detection of CI and ZC, and the safety of the system is ensured.

Based on any of the above embodiments, the method further comprises:

if the previous train meets the preset unlocking condition, the first side impact protection area is cleared by the previous train, and the distance from the most unfavorable parking position of the previous train to the entrance of the first side impact protection area is greater than the backward sliding history distance, calculating the movement authorization comprising the second side impact protection area for the next train;

the first side impact protection area and the second side impact protection area are determined based on the mapping points of the police impact mark positions of the target turnout on the straight track behind the turnout and the mapping points of the police impact mark positions on the side track behind the turnout; the most unfavorable stopping position is determined based on the current position, speed, and speed direction of the previous train.

Specifically, in order to further shorten the train interval duration and avoid side collision of the train, in the embodiment of the invention, according to the position of the turnout point of the target turnout in advance, the mapping point of the police mark position of the target turnout on the straight track behind the turnout, namely the straight strand corresponds to the police mark position, and the mapping point of the police mark position on the side track behind the turnout, namely the side strand corresponds to the police mark position, the overrun area is split into a first side impact protection area and a second side impact protection area; on the basis, after the ZC sends a switch unlocking command to the CI, the ZC can calculate the movement authorization of the next train specifically by the following mode:

if the ZC detects that the previous train has cleared the first side impact protection area and calculates the most unfavorable parking position of the previous train according to the current position, speed and speed direction of the previous train, the distance from the most unfavorable parking position to the entrance of the first side impact protection area is larger than the backward sliding history distance, namely, the train is determined to be impossible to slide backward into the first side impact protection area, the movement authorization of the second side impact protection area entering the path can be calculated for the next train; conversely, if the ZC determines that the previous train is located or likely to slip back into the first side impact protection area of the switch, then the calculated movement authority for the next train must not enter the second side impact protection area of the switch.

Based on any of the above embodiments, the target switch area further includes an intersection area;

the method further comprises the steps of:

when the target turnout area further comprises a crossing area, if the fact that the first crossing protection area is cleared by the previous train and the distance from the most unfavorable parking position of the previous train to the entrance of the first crossing protection area is larger than the backward sliding history distance is detected, calculating movement authorization comprising the second crossing protection area for the next train;

the crossing areas comprise a first crossing protection area and a second crossing protection area which are respectively positioned on different tracks; the most unfavorable stopping position is determined based on the current position, speed, and speed direction of the previous train.

In particular, consider that when the target switch is a crossover common in engineering applications, the target switch area also includes a crossover area where there may be a train that collides with the rest of the trains on the crossover track. In order to ensure the safety of trains and shorten the interval time of the trains, the embodiment of the invention subdivides the crossing area into a first crossing protection area and a second crossing protection area in advance according to the passing path of the trains, and on the basis, after the ZC sends a switch unlocking command to the CI, the movement authorization of the next train can be calculated by the following method:

If the ZC detects that the previous train has cleared the first cross protection area and calculates the most unfavorable parking position of the previous train according to the current position, speed and speed direction of the previous train, the distance from the most unfavorable parking position to the entrance of the first cross protection area is larger than the backward sliding history distance, namely, the previous train is determined to be impossible to slide back into the first cross protection area, and then the movement authorization of the second cross protection area entering the path is calculated for the next train; conversely, if the ZC determines that the previous train is located or likely to slip back into the first cross guard area, then the calculated movement authority for the other trains must not enter the second cross guard area.

Here, the first and second crossover protection zones are located on two tracks at the crossover zone, respectively. Further, the first and second crossover protection zones may be projected zones of a train body on another track crossing a track where the train runs on the track at the crossover zone.

Based on any one of the embodiments, the present invention aims to improve the existing CBTC system, thereby providing a method for quickly unlocking a switch and protecting and controlling side impact, and achieving the following three purposes:

1) After the train of the previous CTC (Centralized Traffic Control, dispatching centralized system) is clear and cannot slide into the movable area of the turnout, the system can quickly release the resource of the movable area of the turnout, operate the turnout to the appointed opening direction for the next CTC train and handle the corresponding route;

2) After the previous CTC train goes out clear and cannot slide into the overrun area, the system can calculate the movement authorization of different paths entering the overrun area for the next CTC train;

3) After the previous CTC train goes out clear and cannot slide into the crossing area, the system can calculate the movement authorization of different paths entering the crossing area for the next CTC train.

Finally, the invention realizes the fine management of the turnout movable area resource, the overrun area resource and the intersection area resource, greatly improves the utilization rate of the turnout movable area resource, the overrun area resource and the intersection area resource by the system, and remarkably enhances the usability of the system.

In addition, when the existing CBTC system is used for evaluating turnout movable area resources, overrun area resources and cross area resources of the CTC train, the condition that the static train does not slide backwards is taken as a precondition, namely, the default train does not slide backwards unexpectedly in a stable state, however, the limitation condition has higher requirement on line design, and the universality of the system is reduced. The invention considers the backward slip condition of the previous CTC train, weakens the dependence on the limiting condition that the static train does not slip backward when the system adopts the turnout movable area resource, the overrun area resource and the crossing area resource for the CTC train in the prior scheme, reduces the line design requirement, enhances the universality of the system and further improves the safety of the system.

Based on any one of the above embodiments, the embodiment of the present invention will be described by taking a post-station turn-back scenario as an example: as shown in fig. 2, if the previous CTC train enters the rear turn-back rail through the side of the switch, when the ZC judges that the train safety envelope has gone out of the movable area of the switch and there is no possibility of the rear slide into the movable area of the switch, a switch unlocking command allowing the quick release of the switch resource is sent to the CI; only when the CI judges that the logic section of the movable area of the turnout is clear, and after receiving the turnout unlocking command sent by the ZC, the logic section of the movable area of the turnout can be unlocked. The CI can be a straight protection section of the switch of the handling way of the CTC train, and the switch is operated to be positioned; when the ZC judges that the safety envelope of the previous CTC train has cleared the lateral overrun protection area behind the turnout and the possibility of sliding into the lateral overrun protection area behind the turnout does not exist, the protection zone in the movement authorization calculated for the next CTC train is set to be in an effective state and can comprise the straight overrun protection area behind the turnout.

Based on any one of the above embodiments, the embodiments of the present invention are described by taking a rush hour loading scene as an example: as shown in fig. 3, if the previous CTC train is driven out from the vehicle section, the previous CTC train enters the front line through the turn-back rail, the side direction of the switch a and the side direction of the switch D after the station, and after the logic section of the crossover protection area on the AD section is cleared, the CI unlocks the corresponding logic section; then, CI can handle the route which enters the turn-back rail through the side direction of the turnout B and the side direction of the turnout C for the subsequent CTC train; when the ZC judges that the safety envelope of the previous CTC train has cleared the cross protection area on the AD section and the possibility of sliding into the area does not exist, the movement authorization calculated for the subsequent CTC train can enter the cross protection area on the BC section.

The switch resource management device provided by the invention is described below, and the switch resource management device described below and the switch resource management method described above can be correspondingly referred to each other.

Based on any of the above embodiments, fig. 5 is a schematic structural diagram of a switch resource management device according to the present invention, as shown in fig. 5, where the device is applied to an interlock subsystem CI, and the device includes:

the unlocking module 510 is configured to unlock the switch movable area if it is detected that the previous train has cleared the switch movable area in the target switch area and a switch unlocking command sent by the area controller ZC is received, where the target switch area includes a plurality of logic sections, the plurality of logic sections include the switch movable area, a switch front boundary area, a switch rear straight boundary area, and a switch rear side boundary area, and the switch unlocking command is sent after the ZC detects that the previous train meets a preset unlocking condition;

and a handling module 520, configured to handle another approach in the target switch area different from the previous train for the next train by taking the logic section as a unit after the switch movable area is unlocked.

According to the device provided by the embodiment of the invention, the target turnout area is subdivided into a plurality of logic sections, and the logic sections are used as units for handling and unlocking the approach, so that the fine management of turnout resources is realized, the defect that extra time is consumed for resource release caused by extensive management of resources in the existing system is overcome, the utilization rate of the turnout resources by the system is greatly improved, the usability of the system is obviously enhanced, the unlocking of the movable area of the turnout is determined based on the dual detection of CI and ZC, and the safety of the system is ensured.

Based on any of the above embodiments, the apparatus further comprises an overrun check module for:

and performing overrun inspection on the corresponding logic section based on the route of the next train and a preset overrun inspection principle.

Based on any of the above embodiments, the overrun check principle includes:

if the approach of the next train comprises a first side impact protection area or only comprises a partial area containing a turnout movable area in the first side impact protection area, checking the use state of a logic section of the area except the turnout movable area in the second side impact protection area;

if the approach of the next train only comprises the area except the turnout movable area in the first side impact protection area, checking the use state of the logic section where the second side impact protection area is located;

the first side impact protection area and the second side impact protection area are determined based on the point of the switch of the target switch, the mapping point of the police impact mark position of the target switch on the straight track behind the switch, and the mapping point of the police impact mark position on the side track behind the switch.

Based on any of the above embodiments, the apparatus further comprises a cross-checking module for:

if the target turnout area also comprises a crossing area, the corresponding logic section is subjected to crossing inspection based on the approach of the next train and a preset crossing inspection principle.

Based on any of the above embodiments, the intersection region includes a first intersection protection region and a second intersection protection region located on different tracks, respectively;

the cross-checking principle includes:

and if the route of the next train completely or partially comprises the first cross protection area, checking the use state of the logic section where the second cross protection area is located.

Based on any of the above embodiments, fig. 6 is a second schematic structural diagram of the switch resource management device provided by the present invention, as shown in fig. 6, the device is applied to a zone controller ZC, and the device includes:

the detecting module 610 is configured to detect whether a previous train meets a preset unlocking condition;

the sending module 620 is configured to send a switch unlocking command to the interlocking subsystem CI if the previous train meets a preset unlocking condition, so that the CI unlocks the switch movable area based on the detected switch movable area in the previous train having cleared the target switch area and the received switch unlocking command, and after the switch movable area is unlocked, the logic section is used as a unit to handle another approach different from the previous train in the target switch area for the next train; the target switch area comprises a plurality of logic sections, wherein the plurality of logic sections comprise a switch movable area, a switch front boundary area, a switch rear straight boundary area and a switch rear side boundary area.

According to the device provided by the embodiment of the invention, the target turnout area is subdivided into a plurality of logic sections, and the logic sections are used as units for handling and unlocking the approach, so that the fine management of turnout resources is realized, the defect that extra time is consumed for resource release caused by extensive management of resources in the existing system is overcome, the utilization rate of the turnout resources by the system is greatly improved, the usability of the system is obviously enhanced, the unlocking of the movable area of the turnout is determined based on the dual detection of CI and ZC, and the safety of the system is ensured.

Based on any of the above embodiments, the apparatus further includes an overrun detection module configured to:

if the previous train meets the preset unlocking condition, the first side impact protection area is cleared by the previous train, and the distance from the most unfavorable parking position of the previous train to the entrance of the first side impact protection area is greater than the backward sliding history distance, calculating the movement authorization comprising the second side impact protection area for the next train;

the first side impact protection area and the second side impact protection area are determined based on the mapping points of the police impact mark positions of the target turnout on the straight track behind the turnout and the mapping points of the police impact mark positions on the side track behind the turnout; the most unfavorable stopping position is determined based on the current position, speed, and speed direction of the previous train.

Based on any of the above embodiments, the target switch area further includes an intersection area;

the apparatus further comprises a cross detection module for:

if the previous train meets the preset unlocking condition, the previous train has cleared the first cross protection area, and the distance from the most unfavorable parking position of the previous train to the entrance of the first cross protection area is greater than the backward sliding history distance, calculating the movement authorization comprising the second cross protection area for the next train;

the crossing areas comprise a first crossing protection area and a second crossing protection area which are respectively positioned on different tracks; the most unfavorable stopping position is determined based on the current position, speed, and speed direction of the previous train.

Fig. 7 illustrates a physical schematic diagram of an electronic device, as shown in fig. 7, which may include: processor 710, communication interface (Communications Interface) 720, memory 730, and communication bus 740, wherein processor 710, communication interface 720, memory 730 communicate with each other via communication bus 740. Processor 710 may invoke logic instructions in memory 730 to perform a switch resource management method that applies to interlock subsystem CI, the method comprising: if the fact that the previous train has cleared the movable turnout area in the target turnout area is detected, and a turnout unlocking command sent by the area controller ZC is received, unlocking the movable turnout area, wherein the target turnout area comprises a plurality of logic sections, the logic sections comprise a movable turnout area, a front turnout boundary area, a rear straight boundary area and a rear lateral boundary area, and the turnout unlocking command is sent after the ZC detects that the previous train meets preset unlocking conditions; after the movable turnout area is unlocked, another approach different from the previous train in the target turnout area is transacted for the next train by taking the logic section as a unit;

Or, to perform a switch resource management method applied to the zone controller ZC, the method comprising: detecting whether a previous train meets a preset unlocking condition or not; if the previous train meets the preset unlocking condition, a switch unlocking command is sent to an interlocking subsystem CI, so that the CI unlocks the switch movable area based on the detected switch movable area in the target switch area of the previous train and the received switch unlocking command, and after the switch movable area is unlocked, the logic section is taken as a unit to handle another direction route different from the previous train in the target switch area for the next train; the target switch area comprises a plurality of logic sections, wherein the plurality of logic sections comprise a switch movable area, a switch front boundary area, a switch rear straight boundary area and a switch rear side boundary area.

Further, the logic instructions in the memory 730 described above may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

In another aspect, the present invention also provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the execution of the switch resource management method provided by the methods described above, the method being applied to an interlock subsystem CI, the method comprising: if the fact that the previous train has cleared the movable turnout area in the target turnout area is detected, and a turnout unlocking command sent by the area controller ZC is received, unlocking the movable turnout area, wherein the target turnout area comprises a plurality of logic sections, the logic sections comprise a movable turnout area, a front turnout boundary area, a rear straight boundary area and a rear lateral boundary area, and the turnout unlocking command is sent after the ZC detects that the previous train meets preset unlocking conditions; after the movable turnout area is unlocked, another approach different from the previous train in the target turnout area is transacted for the next train by taking the logic section as a unit;

or, executing the turnout resource management method provided by the methods, wherein the method is applied to the zone controller ZC, and the method comprises the following steps: detecting whether a previous train meets a preset unlocking condition or not; if the previous train meets the preset unlocking condition, a switch unlocking command is sent to an interlocking subsystem CI, so that the CI unlocks the switch movable area based on the detected switch movable area in the target switch area of the previous train and the received switch unlocking command, and after the switch movable area is unlocked, the logic section is taken as a unit to handle another direction route different from the previous train in the target switch area for the next train; the target switch area comprises a plurality of logic sections, wherein the plurality of logic sections comprise a switch movable area, a switch front boundary area, a switch rear straight boundary area and a switch rear side boundary area.

In yet another aspect, the present invention further provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the switch resource management method provided by the methods above, the method being applied to an interlock subsystem CI, the method comprising: if the fact that the previous train has cleared the movable turnout area in the target turnout area is detected, and a turnout unlocking command sent by the area controller ZC is received, unlocking the movable turnout area, wherein the target turnout area comprises a plurality of logic sections, the logic sections comprise a movable turnout area, a front turnout boundary area, a rear straight boundary area and a rear lateral boundary area, and the turnout unlocking command is sent after the ZC detects that the previous train meets preset unlocking conditions; after the movable turnout area is unlocked, another approach different from the previous train in the target turnout area is transacted for the next train by taking the logic section as a unit;

or, in order to execute the turnout resource management method provided by the methods, the method is applied to the zone controller ZC, and the method comprises the following steps: detecting whether a previous train meets a preset unlocking condition or not; if the previous train meets the preset unlocking condition, a switch unlocking command is sent to an interlocking subsystem CI, so that the CI unlocks the switch movable area based on the detected switch movable area in the target switch area of the previous train and the received switch unlocking command, and after the switch movable area is unlocked, the logic section is taken as a unit to handle another direction route different from the previous train in the target switch area for the next train; the target switch area comprises a plurality of logic sections, wherein the plurality of logic sections comprise a switch movable area, a switch front boundary area, a switch rear straight boundary area and a switch rear side boundary area.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (7)

1. A method for managing switch resources, wherein the method is applied to an interlock subsystem CI, the method comprising:

if it is detected that the previous train has cleared the movable switch area in the target switch area and a switch unlocking command sent by the area controller ZC is received, unlocking the movable switch area, wherein the target switch area comprises a plurality of logic sections, the logic sections comprise the movable switch area, a front switch boundary area, a rear straight boundary area and a rear switch lateral boundary area, the switch unlocking command is sent after the ZC detects that the previous train meets a preset unlocking condition, and the meeting of the preset unlocking condition comprises: the previous train has cleared the movable area of the target turnout;

After the turnout movable area is unlocked, another approach different from the previous train in the target turnout area is transacted for the next train by taking the logic section as a unit;

after the switch movable area is unlocked, another approach different from the previous train in the target switch area is handled for the next train by taking the logic section as a unit, and the method comprises the following steps:

if the previous train meets the preset unlocking condition, the previous train has cleared the first cross protection area, and the distance from the most unfavorable parking position of the previous train to the entrance of the first cross protection area is greater than the backward sliding history distance, calculating the movement authorization comprising the second cross protection area for the next train;

the most unfavorable stopping position is determined based on the current position, speed and speed direction of the previous train;

the step of handling another approach in the target switch area, which is different from the previous train, for the next train by taking the logic section as a unit, wherein the step of handling the another approach further comprises the following steps:

if the target turnout area further comprises a crossing area, performing crossing inspection on the corresponding logic section based on the approach of the next train and a preset crossing inspection principle;

The crossing areas comprise a first crossing protection area and a second crossing protection area which are respectively positioned on different tracks;

the cross-checking principle includes:

and if the route of the next train completely or partially comprises the first cross protection area, checking the use state of the logic section where the second cross protection area is located.

2. The switch resource management method as in claim 1, wherein said handling another approach within said target switch area for a next train, in units of said logical segment, is distinct from said previous train, further comprising:

and performing overrun inspection on the corresponding logic section based on the approach of the next train and a preset overrun inspection principle.

3. The switch resource management method as in claim 2, wherein the overrun check principle comprises:

if the approach of the next train comprises a first side impact protection area or only comprises a partial area containing a turnout movable area in the first side impact protection area, checking the use state of a logic section of the area except the turnout movable area in the second side impact protection area;

if the approach of the next train only comprises the area except the turnout movable area in the first side impact protection area, checking the use state of the logic section where the second side impact protection area is located;

The first side impact protection area and the second side impact protection area are determined based on the point of the switch of the target switch, the mapping point of the police impact mark position of the target switch on the straight track behind the switch, and the mapping point of the police impact mark position on the side track behind the switch.

4. A method for managing switch resources, wherein the method is applied to a zone controller ZC, the method comprising:

detecting whether a previous train meets a preset unlocking condition, wherein the meeting the preset unlocking condition comprises: the previous train has cleared the movable area of the target turnout;

if the previous train meets the preset unlocking condition, a switch unlocking command is sent to an interlocking subsystem CI, so that the CI can unlock the switch movable area based on the detected switch movable area in the previous train out of the target switch area and the received switch unlocking command, and after the switch movable area is unlocked, another approach different from the previous train in the target switch area is handled for the next train by taking a logic section as a unit; the target turnout region comprises a plurality of logic sections, wherein the plurality of logic sections comprise a turnout movable region, a turnout front boundary region, a turnout rear straight boundary region and a turnout rear side boundary region;

The method further comprises the steps of:

if the previous train meets the preset unlocking condition, the previous train has cleared the first cross protection area, and the distance from the most unfavorable parking position of the previous train to the entrance of the first cross protection area is greater than the backward sliding history distance, calculating the movement authorization comprising the second cross protection area for the next train;

wherein the intersection region comprises the first intersection protection region and the second intersection protection region which are respectively positioned on different tracks; the most unfavorable stopping position is determined based on the current position, speed and speed direction of the previous train;

the target turnout area further comprises an intersection area;

the step of handling another approach in the target switch area, which is different from the previous train, for the next train by taking the logic section as a unit, wherein the step of handling the another approach further comprises the following steps:

if the target turnout area further comprises a crossing area, performing crossing inspection on the corresponding logic section based on the approach of the next train and a preset crossing inspection principle;

the cross-checking principle includes:

and if the route of the next train completely or partially comprises the first cross protection area, checking the use state of the logic section where the second cross protection area is located.

5. The switch resource management method of claim 4, further comprising:

if the previous train meets the preset unlocking condition, the previous train has cleared the first side impact protection area, and the distance from the most unfavorable parking position of the previous train to the entrance of the first side impact protection area is greater than the backward sliding history distance, calculating the movement authorization comprising the second side impact protection area for the next train;

the first side impact protection area and the second side impact protection area are determined based on a point of a switch of the target switch, a mapping point of a warning mark position of the target switch on a straight track behind the switch, and a mapping point of a warning mark position on a side track behind the switch; the most adverse stopping location is determined based on the current location, speed, and speed direction of the previous train.

6. A switch resource management device, characterized in that it is applied to an interlock subsystem CI, said device comprising:

the unlocking module is used for unlocking the turnout movable region if the fact that the previous train has cleared the turnout movable region in the target turnout region is detected, and a turnout unlocking command sent by the region controller ZC is received, wherein the target turnout region comprises a plurality of logic sections, the logic sections comprise the turnout movable region, a turnout front boundary region, a turnout rear straight boundary region and a turnout rear side boundary region, and the turnout unlocking command is sent after the ZC detects that the previous train meets preset unlocking conditions;

The handling module is used for handling another direction route which is different from the previous train in the target turnout area for the next train by taking the logic section as a unit after the turnout movable area is unlocked;

after the switch movable area is unlocked, another approach different from the previous train in the target switch area is handled for the next train by taking the logic section as a unit, and the method comprises the following steps:

if the previous train meets the preset unlocking condition, the previous train has cleared the first cross protection area, and the distance from the most unfavorable parking position of the previous train to the entrance of the first cross protection area is greater than the backward sliding history distance, calculating the movement authorization comprising the second cross protection area for the next train;

the most unfavorable stopping position is determined based on the current position, speed and speed direction of the previous train;

the step of handling another approach in the target switch area, which is different from the previous train, for the next train by taking the logic section as a unit, wherein the step of handling the another approach further comprises the following steps:

if the target turnout area further comprises a crossing area, performing crossing inspection on the corresponding logic section based on the approach of the next train and a preset crossing inspection principle;

The crossing areas comprise a first crossing protection area and a second crossing protection area which are respectively positioned on different tracks;

the cross-checking principle includes:

and if the route of the next train completely or partially comprises the first cross protection area, checking the use state of the logic section where the second cross protection area is located.

7. A switch resource management device, characterized in that it is applied to a zone controller ZC, said device comprising:

the detection module is used for detecting whether the previous train meets a preset unlocking condition or not;

the sending module is used for sending a turnout unlocking command to an interlocking subsystem CI if the previous train meets the preset unlocking condition, so that the CI can unlock the turnout movable area based on the detected turnout movable area in the previous train which is clear of the target turnout area and the received turnout unlocking command, and after the turnout movable area is unlocked, the logic section is taken as a unit to handle another approach path which is different from the previous train in the target turnout area for the next train; the target turnout region comprises a plurality of logic sections, wherein the plurality of logic sections comprise a turnout movable region, a turnout front boundary region, a turnout rear straight boundary region and a turnout rear side boundary region;

If the previous train meets the preset unlocking condition, the previous train has cleared the first cross protection area, and the distance from the most unfavorable parking position of the previous train to the entrance of the first cross protection area is greater than the backward sliding history distance, calculating the movement authorization comprising the second cross protection area for the next train;

wherein the intersection region comprises the first intersection protection region and the second intersection protection region which are respectively positioned on different tracks; the most unfavorable stopping position is determined based on the current position, speed and speed direction of the previous train;

the target turnout area further comprises an intersection area;

the logic section is used as a unit to handle another approach path which is different from the previous train in the target turnout area for the next train, and the method further comprises the following steps:

if the target turnout area further comprises a crossing area, performing crossing inspection on the corresponding logic section based on the approach of the next train and a preset crossing inspection principle;

the cross-checking principle includes:

and if the route of the next train completely or partially comprises the first cross protection area, checking the use state of the logic section where the second cross protection area is located.