1. A method for managing turnout resources, which is applied to an interlock subsystem (CI), and comprises the following steps:

if detecting that a previous train has cleared a turnout movable area in a target turnout area and receiving a turnout unlocking command sent by a zone controller ZC, unlocking the turnout movable area, wherein the target turnout area comprises a plurality of logic sections, the plurality of logic sections comprise the turnout movable area, a turnout front boundary area, a turnout rear straight boundary area and a turnout rear lateral boundary area, and the turnout unlocking command is sent by the ZC after detecting that the previous train meets a preset unlocking condition;

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

2. The switch resource management method according to claim 1, wherein said clearing another route for the next train in the target switch area different from the previous train in the logical zone unit further comprises:

and carrying out overrun inspection on the corresponding logic section based on the access of the next train and a preset overrun inspection principle.

3. The switch resource management method of claim 2, wherein said over-limit checking principle comprises:

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

if the route 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 a mapping point of a target turnout point, a mapping point of a warning impact mark position of the target turnout point on a straight track behind the turnout, and a mapping point of the warning impact mark position on a lateral track behind the turnout.

4. The switch resource management method according to claim 1, wherein said clearing another route for the next train in the target switch area different from the previous train in the logical zone unit further comprises:

and if the target turnout area also comprises a crossing area, carrying out crossing check on the corresponding logic section based on the route of the next train and a preset crossing check principle.

5. The turnout resource management method according to claim 4, wherein the crossing zone comprises a first crossing protection zone and a second crossing protection zone respectively located on different tracks;

the cross-checking principle comprises:

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.

6. A method for managing switch resources, characterized in that it is applied to a zone controller ZC, and it comprises:

detecting whether the previous train meets a preset unlocking condition;

if the previous train meets the preset unlocking condition, sending a turnout unlocking command to an interlocking subsystem CI, so that the CI unlocks the turnout movable area based on the detected turnout movable area in the target turnout area which is cleared by the previous train and the received turnout unlocking command, and after the turnout movable area is unlocked, clearing another forward route which is different from the previous train in the target turnout area for the next train by taking a logic section as a unit; the target switch zone includes a plurality of logical zones including the switch active zone, a front switch boundary zone, a rear switch straight boundary zone, and a rear switch lateral boundary zone.

7. The switch resource management method of claim 6, further comprising:

if the previous train meets the preset unlocking condition, the previous train already clears 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 historical distance, calculating the movement authorization containing 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 target turnout point, a mapping point of a warning impact mark position of the target turnout on a straight track behind the turnout and a mapping point of the warning impact mark position on a lateral track behind the turnout; the worst parking position is determined based on the current position, speed and speed direction of the previous train.

8. The switch resource management method of claim 6, wherein said target switch area further comprises a crossing area;

the method further comprises the following steps:

if the previous train meets the preset unlocking condition, the previous train already clears a 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 historical distance, calculating the movement authorization containing a second cross protection area for the next train;

wherein the crossing region comprises the first crossing protection region and the second crossing protection region respectively located on different tracks; the worst parking position is determined based on the current position, speed and speed direction of the previous train.

9. A switch resource management device is characterized in that the device is applied to an interlocking subsystem CI, and the device comprises:

the system comprises an unlocking module, a zone controller ZC and a track switch controller, wherein the unlocking module is used for unlocking a movable turnout zone in a target turnout zone if a previous train is detected to be cleared, and receiving a turnout unlocking command sent by the zone controller ZC, the target turnout zone comprises a plurality of logic zones, the plurality of logic zones comprise the movable turnout zone, a front turnout boundary zone, a rear turnout straight boundary zone and a rear turnout lateral boundary zone, and the turnout unlocking command is sent after the ZC detects that the previous train meets a preset unlocking condition;

and the transaction module is used for transacting another directional access 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.

10. A switch resource management device, characterized in that it is applied to a zone controller ZC, and it comprises:

the detection module is used for detecting whether the previous train meets a preset unlocking condition;

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 unlocks the turnout movable area based on the detected turnout movable area in the target turnout area which is cleared by the previous train and the received turnout unlocking command, and after the turnout movable area is unlocked, the other forward access different from the previous train in the target turnout area is handled for the next train by taking a logic section as a unit; the target switch zone includes a plurality of logical zones including the switch active zone, a front switch boundary zone, a rear switch straight boundary zone, and a rear switch lateral boundary zone.

Background

In urban rail transit, a train frequently passes through a turnout during running, and the turnout is a line connecting device for enabling the train to pass from one rail to another rail. In practical application, the turnout has great influence on the running condition of the train, so that the reasonable allocation of turnout resources is particularly important. At present, a CBTC System (Communication Based Train Control System) is generally adopted to manage switch resources.

The existing CBTC system takes a turnout axle counting section as a minimum unit when managing turnout zone resources, and only after a previous train leaves a complete turnout axle counting section, the system can handle an access route for a next train to the turnout zone resources in different paths. When the existing system applies the same resource to two trains according to different paths, the interval time has longer extra time consumption, which leads to larger train turning-back interval and becomes the bottleneck restricting the promotion of the transport capacity.

Disclosure of Invention

The invention provides a turnout resource management method and device, which are used for solving the defect of long extra time consumption of 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 detecting that a previous train has cleared a turnout movable area in a target turnout area and receiving a turnout unlocking command sent by a zone controller ZC, unlocking the turnout movable area, wherein the target turnout area comprises a plurality of logic sections, the plurality of logic sections comprise the turnout movable area, a turnout front boundary area, a turnout rear straight boundary area and a turnout rear lateral boundary area, and the turnout unlocking command is sent by the ZC after detecting that the previous train meets a preset unlocking condition;

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

According to the switch resource management method provided by the present invention, the method for handling another forward route different from the previous train in the target switch area for the next train by taking the logical section as a unit further includes:

and carrying out overrun inspection on the corresponding logic section based on the access of the next train and a preset overrun inspection principle.

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

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

if the route 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 a mapping point of a target turnout point, a mapping point of a warning impact mark position of the target turnout point on a straight track behind the turnout, and a mapping point of the warning impact mark position on a lateral track behind the turnout.

According to the switch resource management method provided by the present invention, the method for handling another forward route different from the previous train in the target switch area for the next train by taking the logical section as a unit further includes:

and if the target turnout area also comprises a crossing area, carrying out crossing check on the corresponding logic section based on the route of the next train and a preset crossing check 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 comprises:

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 switch resource management method, which is applied to a zone controller ZC and comprises the following steps:

detecting whether the previous train meets a preset unlocking condition;

if the previous train meets the preset unlocking condition, sending a turnout unlocking command to an interlocking subsystem CI, so that the CI unlocks the turnout movable area based on the detected turnout movable area in the target turnout area which is cleared by the previous train and the received turnout unlocking command, and after the turnout movable area is unlocked, clearing another forward route which is different from the previous train in the target turnout area for the next train by taking a logic section as a unit; the target switch zone includes a plurality of logical zones including the switch active zone, a front switch boundary zone, a rear switch straight boundary zone, and a rear switch lateral boundary zone.

According to the switch 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 already clears 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 historical distance, calculating the movement authorization containing 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 target turnout point, a mapping point of a warning impact mark position of the target turnout on a straight track behind the turnout and a mapping point of the warning impact mark position on a lateral track behind the turnout; the worst parking position is determined based on the current position, speed and speed direction of the previous train.

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

the method further comprises the following steps:

if the previous train meets the preset unlocking condition, the previous train already clears a 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 historical distance, calculating the movement authorization containing a second cross protection area for the next train;

wherein the crossing region comprises the first crossing protection region and the second crossing protection region respectively located on different tracks; the worst parking position is determined based on the current position, speed and speed direction of the previous train.

The invention also provides an electronic device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the program to realize the steps of the turnout resource management method.

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

According to the turnout resource management method and device provided by the invention, the target turnout area is subdivided into a plurality of logic sections, and the access is handled and unlocked in units of the logic sections, so that the fine management of turnout resources is realized, the defect that the additional time consumption is long due to the resource release caused by the 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 turnout 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 technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic flow chart of a turnout resource management method provided by the present 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 diagram of a target switch area provided by the present invention;

FIG. 4 is a second schematic flow chart of the turnout resource management method provided by the present invention;

FIG. 5 is a schematic structural diagram of a turnout resource management device provided by the present invention;

fig. 6 is a second schematic structural diagram of the turnout resource management device provided by the invention;

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

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The CBTC system is a train control system which has wide application trend in railway systems and urban rail systems at present. The system adopts a control architecture taking ground equipment as a core, and a CI (computer Interlocking subsystem) controls ground turnouts, a screen door, a signal machine and the like; a Zone Controller (ZC) forms a movement authorization and sends the movement authorization to all trains in a Zone according to the status of the ground track equipment and the location information reported by the trains, thereby protecting the operation of the trains.

However, when the existing CBTC system applies the same resource to two trains along different routes, the time interval has a long extra time, which results in a large train turning-back interval and becomes a bottleneck restricting the improvement of the operation energy. For example, if the margin between the installation position of the axle counting magnetic head of the turnout axle counting section and the movable area of the turnout is large due to field implementation conditions, even if the system has no safety risk for the next train after the turnout movable area is cleared by the previous train, the system still needs to wait for the boundary of the turnout movable area cleared by the previous train to reach the area between the axle counting magnetic heads, and extra time consumption is long; if the switch axle counting section contains multiple sets of switches such as switch 1, switch 2, switch 3, even after the last train clears the movable area of switch 1, the system will use the movable area resource of switch 1 for the next train and has no safety risk, but still need wait for the last train to clear the complete switch axle counting section, and extra time consumption is longer.

In view of the above, the embodiment of the present invention provides a switch resource management method. Fig. 1 is a schematic flow diagram of a switch resource management method provided by the present invention, as shown in fig. 1, an execution subject of the method is an interlocking subsystem CI, and the method includes:

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

and step 120, after the turnout movable area is unlocked, transacting another directional 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.

Here, the target switch area is a switch area that needs to be resource-managed. It should be noted that the type of the turnout is not specifically limited in the embodiment of the present invention, when the target turnout is a single turnout, the target turnout area may be directly processed, and when the target turnout is another turnout such as a symmetric turnout, a three-way turnout, an intersection turnout, etc., the target turnout area needs to be split into a plurality of single turnout areas in advance, and then the plurality of single turnout areas are processed respectively.

Specifically, when the existing system expropriates the same resource for two trains according to different paths, longer extra time consumption exists in the interval time, so that a larger train turning interval is caused, and the train running efficiency is greatly lowered. Aiming at the problem, the embodiment of the invention subdivides the target turnout area into a plurality of logic sections, and aiming at each single turnout area, 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, and the turnout resources are managed by taking the logic sections as units, so that the turnout resources are finely managed. Here, the switch movable region is a region between the switch front boundary region, the switch rear straight boundary region, and the switch rear lateral boundary region, in which the track position is movable and controlled by the switch; outside this area, the track is fixed in position and not controlled by the switch. When setting the front fork boundary area, the rear fork straight boundary area, and the rear fork lateral boundary area, a certain safety margin should be considered.

On the basis, if the CI detects that the logic section where the turnout movable area in the target turnout area is located in the previous train is cleared through the logic judgment function of the CI, and receives the turnout unlocking command sent by the ZC, the unlocking operation can be executed on the logic section where the turnout movable area is located, 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 satisfies a preset unlocking condition, and is used to indicate that the ZC allows unlocking of the movable region of the switch.

After the switch active area is unlocked, the CI may process another directional route in the target switch area for the next train in logical zones distinct from the previous train, e.g., if the previous train is going straight into the track as it passes through the switch, the next train may be processed for a lateral route in the target switch area. Here, the route may include a main route, a protection section, and the like, which is not specifically limited in this embodiment of the present invention.

Further, the preset unlocking condition may include that, in addition to the fact that the previous train has cleared the switch movement area, the distance from the worst parking position of the previous train to the entrance of the switch movement area is greater than the back-rolling history distance. Here, the most unfavorable parking position takes into account the most unfavorable situation, i.e. the position at which the train stops if the train emergency brake is currently triggered immediately. The worst parking position can be calculated from the current position, speed and speed direction of the train. When the distance from the most unfavorable parking position of the previous train to the entrance of the turnout movable area is greater than the back-rolling historical distance, the possibility that the train slides back into the turnout movable area is not existed.

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 access is handled and unlocked in units of the logic sections, so that the fine management of turnout resources is realized, the defect that the additional time consumption of resource release is long due to the extensive resource management in the conventional 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 turnout area is determined based on the dual detection of the CI and the ZC, and the safety of the system is ensured.

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

and carrying out overrun inspection on the corresponding logic section based on the access of the next train and a preset overrun inspection principle.

Specifically, considering that the existing CBTC system uses the axle counting section as the minimum unit when managing the resources of the overrun area, only after the previous train leaves the axle counting section covered by the overrun area, the system can handle the next train to route the next train through a different route in the overrun area. If the margin of the installation position of the axle counting magnetic head from the overrun area is large due to field implementation conditions, even if the system does not have safety risk for the next train after the previous train clears the overrun area, the system still needs to wait for the previous train to clear the overrun area boundary to the area between the axle counting magnetic heads, and extra time consumption is long.

Aiming at the problem, before the approach is handled for the next train, the CI is set to carry out the overrun check on the corresponding logical section according to the predetermined approach of the next train and the preset overrun check principle, and the CI handles the approach for the next train after the check is passed, so that the overrun area resources are managed by taking the logical section as the minimum unit, and the train interval duration is further shortened. Here, the overrun check rule is used to check the use state of the logical zone included in the overrun area, thereby preventing a train side collision.

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

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

if the route 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 a mapping point of a target turnout point, a mapping point of a warning impact mark position of the target turnout point on a straight track behind the turnout, and a mapping point of the warning impact mark position on a lateral track behind the turnout.

Specifically, in order to realize the fine management of the resources of the overrun area, the embodiment of the invention divides the overrun area into the straight overrun protection area after the turnout and the lateral overrun protection area after the turnout according to the position of the turnout point of the target turnout, the mapping point of the position of the warning mark of the target turnout on the straight track after the turnout, namely the position of the straight strand corresponding to the warning mark, and the mapping point of the position of the warning mark on the lateral track after the turnout, namely the position of the lateral strand corresponding to the warning mark. It should be noted that, when the first side impact protection area is a straight after-fork over-limit protection area, the second side impact protection area is a side after-fork over-limit protection area; when the first side punching protection area is a fork rear side over-limit protection area, the second side punching protection area is a fork rear straight over-limit protection area.

On the basis, the overrun checking principle can comprise the following principles: if the CI requires to use all line resources contained in the first side impact protection area through a main route, a protection area and the like, checking the use state of a logic area in which an area except a turnout movable area in the second side impact protection area is located; if the CI only requires to use a partial area containing a turnout movable area in the first side impact protection area in a main route, a protection area and the like, checking the use state of a logic area of an area except the turnout movable area in the second side impact protection area; and if the CI only requires to use the area except the movable area of the turnout in the first side impact protection area in the mode of main route, 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 the exemplary diagrams of the target switch zones provided by the present invention, the switch moving zone is the logic zone 1 in the diagram, the switch front boundary zone is the logic zone 2 in the diagram, the switch rear straight boundary zone is the logic zone 3 in the diagram, the switch rear lateral boundary zone is the logic zone 4 in the diagram, and the first side impact protection zone and the second side impact protection zone correspond to two dashed-line frame zones in the diagram. As shown in fig. 2, if the first side impact protection area is a horizontal dashed box area in the figure, it is located in logic sections 3 and 1, and the second side impact protection area is located in logic sections 4 and 1. If the CI commandeers all line resources contained in the first sideslip protection area, the overrun checking principle should check that the logic section 4 is not occupied and locked; if the CI enlists only line resources in the first sideslip guard region 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:

and if the target turnout area also comprises a crossing area, carrying out crossing check on the corresponding logic section based on the route of the next train and a preset crossing check principle.

Specifically, when the target turnout is a common crossover line in engineering application, after the target turnout area is split in advance, the intersection area can be obtained in addition to a plurality of single turnout areas. The existing CBTC system takes the axle counting section as the minimum unit when managing the resources of the intersection area, and the system side can handle the route of the next train passing through different paths of the intersection area only after the previous train leaves the axle counting section covered by the intersection area. Therefore, even if the system does not have a safety risk for the next train after the last train clears the intersection area, the system still needs to wait for all the axle counting sections covered by the intersection area cleared by the last train, which takes a long time.

Aiming at the problem, before the approach is handled for the next train, the CI is set to carry out the intersection check on the corresponding logical section according to the predetermined approach of the next train and the preset intersection check principle, and the CI handles the approach for the next train after the check is passed, so that the resources of the intersection area are managed by taking the logical section as the minimum unit, and the time length of the train interval is further shortened. Here, the crossing checking principle is used to check the use state of the logical zone included in the crossing area, thereby preventing the train from colliding with the remaining trains on the crossing track.

According to any one of the above embodiments, the crossing region includes a first crossing protection region and a second crossing protection region respectively located on different tracks;

the cross-checking principle comprises:

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 implement fine management on resources of a crossing area, in the embodiment of the present invention, the crossing area is split into a first crossing protection area and a second crossing protection area in advance according to a train passing path, where the first crossing protection area and the second crossing protection area are located on two tracks at the crossing area respectively. Further, the first and second crossing protection zones may be projection zones of train bodies on a certain track crossing the track when the train runs on the track at the crossing zone.

On this basis, the cross-checking principle may include the following principles: if the main route of the next train completely contains or partially contains the first cross protection area, all logic sections where the second cross protection area associated with the cross protection area is located are listed as cross checking conditions of the main route, and the CI checks the use states of all the logic sections before transacting the main route for the next train; if the protection section of the next train completely contains or partially contains the first cross protection area, all logic sections where the second cross protection area associated with the cross protection area is located are listed as cross checking conditions of the protection section, and the CI checks the use states of all the 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 example diagram of a target switch area provided by the present invention, the target switch area may be split into four single switch areas and a crossing area, the crossing area may be subdivided into a first crossing protection area and a second crossing protection area, and the first crossing protection area and the second crossing protection area correspond to two dashed-line frame areas in the diagram. As shown in fig. 3, if the first cross guard area is a dashed box area on the AD section in the figure, it is located in logical sections 7 and 11, and the second cross guard area is located in logical sections 4 and 13. If the first crossover protection zone is contained in whole or in part within the primary route or protected section of the next train, the crossover check principle should check that logical sections 4 and 13 are unoccupied and not locked.

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

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

step 220, if the previous train meets the preset unlocking condition, a turnout unlocking command is sent to the interlocking subsystem CI, so that the CI unlocks the turnout movable area based on the detected turnout movable area in the target turnout area which has been cleared by the previous train and the received turnout unlocking command, and after the turnout movable area is unlocked, the other way of the next train which is different from the previous train in the target turnout area is handled by taking a logic section as a unit; the target switch zone includes a plurality of logical zones including a switch active zone, a switch front boundary zone, a switch rear straight boundary zone, and a switch rear lateral boundary zone.

Here, the target switch area is a switch area that needs to be resource-managed. It should be noted that the type of the turnout is not specifically limited in the embodiment of the present invention, when the target turnout is a single turnout, the target turnout area may be directly processed, and when the target turnout is another turnout such as a symmetric turnout, a three-way turnout, an intersection turnout, etc., the target turnout area needs to be split into a plurality of single turnout areas in advance, and then the plurality of single turnout areas are processed respectively.

Specifically, when the existing system expropriates the same resource for two trains according to different paths, longer extra time consumption exists in the interval time, so that a larger train turning interval is caused, and the train running efficiency is greatly lowered. Aiming at the problem, the embodiment of the invention subdivides the target turnout area into a plurality of logic sections, and aiming at each single turnout area, 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, and the turnout resources are managed by taking the logic sections as units, so that the turnout resources are finely managed. Here, the switch movable region is a region between the switch front boundary region, the switch rear straight boundary region, and the switch rear lateral boundary region, in which the track position is movable and controlled by the switch; outside this area, the track is fixed in position and not controlled by the switch. When setting the front fork boundary area, the rear fork straight boundary area, and the rear fork lateral boundary area, a certain safety margin should be considered.

On the basis, the ZC firstly detects whether the previous train meets the preset unlocking condition, and after the ZC detects that the previous train meets the preset unlocking condition, a turnout unlocking command can be sent to the CI, namely that the ZC allows unlocking the movable area of the turnout. And then, the CI receives a turnout unlocking command sent by the ZC, and if the CI detects that the logic section where the turnout movable area in the target turnout area is located in the previous train is cleared through the logic judgment function of the CI, the CI can execute unlocking operation on the logic section where the turnout movable area is located to prepare for entering of the next train, so that the train interval duration is shortened, and the turnout resource utilization rate is improved.

After the switch active area is unlocked, the CI may process another directional route in the target switch area for the next train in logical zones distinct from the previous train, e.g., if the previous train is going straight into the track as it passes through the switch, the next train may be processed for a lateral route in the target switch area. Here, the route may include a main route, a protection section, and the like, which is not specifically limited in this embodiment of the present invention.

Further, the preset unlocking condition may include that, in addition to the fact that the previous train has cleared the switch movement area, the distance from the worst parking position of the previous train to the entrance of the switch movement area is greater than the back-rolling history distance. Here, the most unfavorable parking position takes into account the most unfavorable situation, i.e. the position at which the train stops if the train emergency brake is currently triggered immediately. The worst parking position can be calculated from the current position, speed and speed direction of the train. When the distance from the most unfavorable parking position of the previous train to the entrance of the turnout movable area is greater than the back-rolling historical distance, the possibility that the train slides back into the turnout movable area is not existed.

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 access is handled and unlocked in units of the logic sections, so that the fine management of turnout resources is realized, the defect that the additional time consumption of resource release is long due to the extensive resource management in the conventional 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 turnout area is determined based on the dual detection of the CI and the 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 previous train already clears the first side impact protection area, and the distance from the worst parking position of the previous train to the entrance of the first side impact protection area is greater than the backward sliding historical distance, calculating the movement authorization containing 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 target turnout point, a mapping point of a warning impact mark position of the target turnout on a straight track behind the turnout and a mapping point of the warning impact mark position on a lateral track behind the turnout; the worst parking 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, the embodiment of the invention divides the overrun area into a first side impact protection area and a second side impact protection area according to the position of a target turnout switch point, a mapping point of a target turnout alarm mark position on a straight track behind the switch, namely a straight strand corresponding alarm mark position, and a mapping point of the alarm mark position on a lateral track behind the switch, namely a side strand corresponding alarm mark position; on this basis, after sending the switch unlock command to the CI, the ZC may specifically calculate the movement authorization of the next train in the following manner:

if the ZC detects that the previous train leaves the first side impact protection area clearly, and calculates the most unfavorable parking position of the previous train according to the current position, the speed and the speed direction of the previous train, and the distance from the most unfavorable parking position to the entrance of the first side impact protection area is larger than the backward sliding historical distance, namely the fact that the train is unlikely to slip backwards into the first side impact protection area is determined, the movement authorization of the second side impact protection area of the access route can be calculated for the next train; conversely, if the ZC determines that the previous train is located or is likely to roll back into the first side-impact zone of the switch, then the movement authorization calculated for the next train must not enter the second side-impact zone of the switch.

Based on any one of the above embodiments, the target turnout zone further comprises a crossing zone;

the method further comprises the following steps:

when the target turnout area also comprises a crossing area, if the fact that the previous train has cleared the first crossing protection area is detected, and the distance from the worst parking position of the previous train to the entrance of the first crossing protection area is greater than the back-sliding historical distance, calculating the movement authorization containing the second crossing protection area for the next train;

the crossing region comprises a first crossing protection region and a second crossing protection region which are respectively positioned on different tracks; the worst parking position is determined based on the current position, speed and speed direction of the previous train.

In particular, it is contemplated 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 conflict with the remaining trains on the crossing track. In order to ensure the safety of a train and shorten the train interval time, the embodiment of the invention subdivides a crossing area into a first crossing protection area and a second crossing protection area in advance according to a train passing path, and on the basis, after a ZC sends a turnout unlocking command to a CI, the movement authorization of the next train can be specifically calculated in the following way:

if the ZC detects that the previous train leaves the first cross protection area clearly and calculates the most unfavorable parking position of the previous train according to the current position, the speed and the speed direction of the previous train, and the distance from the most unfavorable parking position to the entrance of the first cross protection area is larger than the backward sliding historical distance, namely the fact that the previous train is unlikely to slide backwards into the first cross protection area is determined, the ZC calculates the movement authorization of the second cross protection area of the access route for the next train; conversely, if the ZC determines that the previous train is located or is likely to slip into the first cross-protection zone, then the calculated movement grants for the other trains must not enter the second cross-protection zone.

Here, the first and second cross guard areas are located on the two tracks at the cross area, respectively. Further, the first and second crossing protection zones may be projection zones of train bodies on a certain track crossing the track when the train runs on the track at the crossing zone.

Based on any one of the above embodiments, the present invention aims to improve the existing CBTC system, so as to provide a method for controlling rapid switch unlocking and lateral impact protection, and achieve the following three objectives:

1) after a previous CTC (Centralized Traffic Control) train is clear and cannot slide into a turnout movable area, the system can quickly release turnout movable area resources, operate a turnout to a specified opening direction for a next CTC train and handle a corresponding approach;

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

3) after the previous CTC train is clear and cannot slide into the crossing area, the system can calculate the movement authorization of different paths of the crossing area for the next CTC train to enter.

Finally, the invention realizes the fine management of the turnout movable area resources, the overrun area resources and the cross area resources, greatly improves the utilization rate of the turnout movable area resources, the overrun area resources and the cross area resources of the system, and obviously enhances the usability of the system.

In addition, when the existing CBTC system imposes turnout movable area resources, overrun area resources and intersection area resources on the CTC train, the condition that a static train does not slide backwards is taken as a precondition, namely the default train does not slide backwards unexpectedly in a stable stop state, however, the restriction condition has higher requirement on line design, and the universality of the system is reduced. The invention takes the situation that the previous CTC train slips backwards into consideration, weakens the dependence of the system in the prior scheme on the limiting condition that the turnout does not slip backwards when the system comma the movable area resource, the overrun area resource and the cross area resource of the turnout for the CTC train, reduces the line design requirement, enhances the universality of the system and further improves the safety of the system.

Based on any of the above embodiments, the embodiments of the present invention take a post-station foldback scenario as an example for explanation: as shown in fig. 2, if a previous CTC train laterally enters a station and then turns back a track through a switch, when the ZC determines that the train safety envelope has cleared the movable area of the switch and there is no possibility of backward sliding into the movable area of the switch, it sends a switch unlocking command allowing the switch resource to be quickly released to the CI; and only when the CI judges that the logic section where the turnout movable area is located is clear and receives a turnout unlocking command sent by the ZC, unlocking the logic section where the turnout movable area is located. Then, the CI can be a straight protection section of a switch in the way of handling the CTC train, and the switch of the switch is operated to be positioned; when the ZC judges that the safety envelope of the previous CTC train clears the lateral over-limit protection area behind the turnout and the possibility of slipping into the lateral over-limit protection area behind the turnout does not exist, the protection zone in the mobile authorization calculated for the next CTC train is in an effective state and can include the straight over-limit protection area behind the turnout.

Based on any of the above embodiments, the embodiment of the present invention is described by taking a rush hour vehicle adding scene as an example: as shown in fig. 3, if the previous CTC train is driven out of the train section, the train enters the main line through the station back turn-back rail, the side direction of the turnout a and the side direction of the turnout D, and after the previous CTC train is out of the logic section where the cross protection area on the AD section is located, the CI unlocks the corresponding logic section; then, the CI can handle the access of the next CTC train entering the return rail through the lateral direction of the turnout B and the lateral direction of the turnout C; and when the ZC judges that the safety envelope of the previous CTC train leaves the cross protection area on the AD section and does not have the possibility of slipping into the area, the mobile authorization calculated for the next CTC train can enter the cross protection area on the BC section.

The following describes the switch resource management device provided by the present invention, and the switch resource management device described below and the switch resource management method described above may be referred to in correspondence with each other.

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

the unlocking module 510 is used for unlocking a turnout movable area if detecting that a previous train has cleared the turnout movable area in a target turnout area and receiving a turnout unlocking command sent by a zone controller ZC, wherein the target turnout area comprises a plurality of logic sections, the plurality of logic sections comprise the turnout movable area, a turnout front boundary area, a turnout rear straight boundary area and a turnout rear lateral boundary area, and the turnout unlocking command is sent after the ZC detects that the previous train meets a preset unlocking condition;

and the transaction module 520 is used for transacting another directional route which is different from the previous train in the next train in the target turnout area by taking the logic section as a unit after the turnout 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 access is handled and unlocked by taking the logic sections as units, so that the fine management of turnout resources is realized, the defect that the additional time consumption of resource release is long due to the extensive resource management in the conventional 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 turnout area 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 configured to:

and carrying out overrun inspection on the corresponding logic section based on the access of the next train and a preset overrun inspection principle.

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

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

if the route 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 a mapping point of a target turnout point, a mapping point of a warning impact mark position of the target turnout point on a straight track behind the turnout, and a mapping point of the warning impact mark position on a lateral track behind the turnout.

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

and if the target turnout area also comprises a crossing area, carrying out crossing check on the corresponding logic section based on the route of the next train and a preset crossing check principle.

According to any one of the above embodiments, the crossing region includes a first crossing protection region and a second crossing protection region respectively located on different tracks;

the cross-checking principle comprises:

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 a 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 detection module 610 is used for detecting whether a previous train meets a preset unlocking condition;

the sending module 620 is configured to send a turnout unlocking command to the interlock subsystem CI if the previous train meets a preset unlocking condition, so that the CI unlocks the turnout movable area based on the detected turnout movable area in the target turnout area which has been cleared by the previous train and the received turnout unlocking command, and after the turnout movable area is unlocked, the next train is processed for another forward route different from the previous train in the target turnout area by taking the logical section as a unit; the target switch zone includes a plurality of logical zones including a switch active zone, a switch front boundary zone, a switch rear straight boundary zone, and a switch rear lateral boundary zone.

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 access is handled and unlocked by taking the logic sections as units, so that the fine management of turnout resources is realized, the defect that the additional time consumption of resource release is long due to the extensive resource management in the conventional 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 turnout area 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 detection module configured to:

if the previous train meets the preset unlocking condition, the previous train already clears the first side impact protection area, and the distance from the worst parking position of the previous train to the entrance of the first side impact protection area is greater than the backward sliding historical distance, calculating the movement authorization containing 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 target turnout point, a mapping point of a warning impact mark position of the target turnout on a straight track behind the turnout and a mapping point of the warning impact mark position on a lateral track behind the turnout; the worst parking position is determined based on the current position, speed and speed direction of the previous train.

Based on any one of the above embodiments, the target turnout zone further comprises a crossing zone;

the apparatus also includes a cross detection module to:

if the previous train meets the preset unlocking condition, the previous train already clears the first cross protection area, and the distance from the worst parking position of the previous train to the entrance of the first cross protection area is greater than the backward sliding historical distance, calculating the movement authorization containing the second cross protection area for the next train;

the crossing region comprises a first crossing protection region and a second crossing protection region which are respectively positioned on different tracks; the worst parking position is determined based on the current position, speed and speed direction of the previous train.

Fig. 7 illustrates a physical structure diagram of an electronic device, and as shown in fig. 7, the electronic device may include: a processor (processor)710, a communication Interface (Communications Interface)720, a memory (memory)730, and a communication bus 740, wherein the processor 710, the communication Interface 720, and the memory 730 communicate with each other via the communication bus 740. The processor 710 may call the logic instructions in the memory 730 to execute the switch resource management method applied to the interlock subsystem CI, the method comprising: if detecting that a previous train has cleared a turnout movable area in a target turnout area and receiving a turnout unlocking command sent by a zone controller ZC, unlocking the turnout movable area, wherein the target turnout area comprises a plurality of logic zones, the plurality of logic zones comprise the turnout movable area, a turnout front boundary area, a turnout rear straight boundary area and a turnout rear lateral boundary area, and the turnout unlocking command is sent after the ZC detects that the previous train meets a preset unlocking condition; after the movable area of the turnout is unlocked, taking a logic section as a unit, and handling another way different from the previous train in the target turnout area for the next train;

or, to implement a switch resource management method, applied to a zone controller ZC, comprising: detecting whether the previous train meets a preset unlocking condition; if the previous train meets the preset unlocking condition, a turnout unlocking command is sent to the interlocking subsystem CI, so that the CI unlocks the turnout movable area based on the detected turnout movable area in the target turnout area which is cleared by the previous train and the received turnout unlocking command, and after the turnout movable area is unlocked, the next train is transacted for another forward route which is different from the previous train in the target turnout area by taking a logic section as a unit; the target switch zone includes a plurality of logical zones including a switch active zone, a switch front boundary zone, a switch rear straight boundary zone, and a switch rear lateral boundary zone.

In addition, the logic instructions in the memory 730 can be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute 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), a magnetic disk or an optical disk, and other various media capable of storing program codes.

In another aspect, the present invention further provides a computer program product, the computer program product includes a computer program stored on a non-transitory computer readable storage medium, the computer program includes program instructions, when the program instructions are executed by a computer, the computer can execute the switch resource management method provided by the above methods, the method is applied to an interlock subsystem CI, and the method includes: if detecting that a previous train has cleared a turnout movable area in a target turnout area and receiving a turnout unlocking command sent by a zone controller ZC, unlocking the turnout movable area, wherein the target turnout area comprises a plurality of logic zones, the plurality of logic zones comprise the turnout movable area, a turnout front boundary area, a turnout rear straight boundary area and a turnout rear lateral boundary area, and the turnout unlocking command is sent after the ZC detects that the previous train meets a preset unlocking condition; after the movable area of the turnout is unlocked, taking a logic section as a unit, and handling another way different from the previous train in the target turnout area for the next train;

or, executing the switch resource management method provided by the above methods, the method is applied to a zone controller ZC, and the method includes: detecting whether the previous train meets a preset unlocking condition; if the previous train meets the preset unlocking condition, a turnout unlocking command is sent to the interlocking subsystem CI, so that the CI unlocks the turnout movable area based on the detected turnout movable area in the target turnout area which is cleared by the previous train and the received turnout unlocking command, and after the turnout movable area is unlocked, the next train is transacted for another forward route which is different from the previous train in the target turnout area by taking a logic section as a unit; the target switch zone includes a plurality of logical zones including a switch active zone, a switch front boundary zone, a switch rear straight boundary zone, and a switch rear lateral boundary zone.

In yet another aspect, the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, the computer program being implemented by a processor to execute the switch resource management method provided by the above methods, the method being applied to an interlock subsystem CI, and the method including: if detecting that a previous train has cleared a turnout movable area in a target turnout area and receiving a turnout unlocking command sent by a zone controller ZC, unlocking the turnout movable area, wherein the target turnout area comprises a plurality of logic zones, the plurality of logic zones comprise the turnout movable area, a turnout front boundary area, a turnout rear straight boundary area and a turnout rear lateral boundary area, and the turnout unlocking command is sent after the ZC detects that the previous train meets a preset unlocking condition; after the movable area of the turnout is unlocked, taking a logic section as a unit, and handling another way different from the previous train in the target turnout area for the next train;

or, in order to execute the switch resource management method provided by the above methods, the method is applied to a zone controller ZC, and the method includes: detecting whether the previous train meets a preset unlocking condition; if the previous train meets the preset unlocking condition, a turnout unlocking command is sent to the interlocking subsystem CI, so that the CI unlocks the turnout movable area based on the detected turnout movable area in the target turnout area which is cleared by the previous train and the received turnout unlocking command, and after the turnout movable area is unlocked, the next train is transacted for another forward route which is different from the previous train in the target turnout area by taking a logic section as a unit; the target switch zone includes a plurality of logical zones including a switch active zone, a switch front boundary zone, a switch rear straight boundary zone, and a switch rear lateral boundary zone.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.