Wireless train control system, switch control device, switch control method, and program

Abstract

This wireless train control system and switch control technology significantly reduces the amount of cables to be laid, enables movable block signaling even around points, and provides complete movable block signaling. [Solution] In a wireless train control system where an on-board device equipped with a train position detection function and a ground device installed on the ground control trains using wireless communication, the switch control device that controls the switching and locking of the points is authorized to switch the points and lock the points for the train for which a passage request has been received if the route of the train for which a passage request has been received does not intersect at a point with the route of the train for which identification information of the permitted train is registered in the permitted train storage unit where the identification information of the permitted train is registered.

Description

Technical Field

[0001] The present invention relates to a wireless train control system, a turnout control device, a turnout control method, and a program.

Background Art

[0002] In railway, the conversion and locking control of turnouts are performed by an interlocking device. The interlocking device is intended to permit progress on a predetermined route, and the turnout is indirectly converted or locked according to the route in response to a lever input (Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a conventional wireless train control system, an existing interlocking device is utilized, and the conversion and locking of turnouts are indirectly controlled according to the route. Therefore, for example, individual designs were required at each station due to complex interlocking logic.

[0005] The present invention has been made in view of such problems, and by directly controlling a turnout by utilizing the identification information of a train, which is a feature of a wireless train control system, it is possible to provide a wireless train control system, a turnout control device, a turnout control method, and a program that can simplify the interlocking device configuration.

Means for Solving the Problems

[0006] To solve the above problems, one aspect of the present invention is a wireless train control system in which a train onboard device equipped with a vehicle position detection function and a ground device installed on the ground perform train control using wireless communication, wherein the ground device includes a switch control device that controls the switching and locking of switches, and the switch control device includes a reception unit that receives requests from trains to pass through switches, a determination unit that determines whether or not to permit the train to switch and lock the switches based on the pass request received by the reception unit, a drive control unit that controls the switching and locking of the switches permitted by the determination unit, a registration unit that registers identification information of trains whose switch switching and locking by the drive control unit has been completed in an authorized train storage unit, and a deletion unit that deletes the train identification information from the authorized train storage unit when a request to delete the registration of a switch is received from a train, and the determination unit is characterized in that if the route of the train for which a pass request has been received does not intersect with the route of a train for which identification information is registered in the authorized train storage unit at a switch, it permits the switching and locking of the switches for the train for which a pass request has been received.

[0007] Furthermore, one aspect of the present invention is a switch control device that controls the switching and locking of a switch in a wireless train control system in which a train on-board device equipped with a self-vehicle position detection function and a ground device installed on the ground control the train using wireless communication, and comprises a reception unit that receives a request from a train to pass through a switch, a determination unit that determines whether or not to permit the train to switch and lock the switch based on the pass request received by the reception unit, a drive control unit that controls the switching and locking of the switch permitted by the determination unit, a registration unit that registers the identification information of the train whose switch switching and locking has been completed by the drive control unit in an authorized train storage unit, and a deletion unit that deletes the train's identification information from the authorized train storage unit when a request to delete the registration of a switch is received from a train, and the determination unit is characterized in that if the route of the train whose pass request has been received does not intersect with the route of a train whose identification information is registered in the authorized train storage unit at a switch, it permits the switching and locking of the switch for the train whose pass request has been received.

[0008] Furthermore, one aspect of the present invention relates to a switch control method for a wireless train control system in which a train on-board device equipped with a vehicle position detection function and a ground device installed on the ground control a train using wireless communication to switch and lock the switch, and includes a reception step of receiving a request from a train to pass through a switch; a determination step of determining whether or not to permit the train to switch and lock the switch based on the pass request received in the reception step; a drive control step of controlling the switch switching and locking permitted in the determination step; a registration step of registering the identification information of the train whose switch switching and locking has been completed in the drive control step into an authorized train storage unit; and a deletion step of deleting the train's identification information from the authorized train storage unit when a request to delete the registration of a switch is received from a train, wherein the determination step is characterized in that if the route of the train whose pass request has been received does not intersect with the route of a train whose identification information is registered in the authorized train storage unit at a switch, the switch switching and locking is permitted for the train whose pass request has been received.

[0009] Furthermore, a program relating to one aspect of the present invention is a program executable by the computer of a switch control device that controls the switching and locking of switches in a wireless train control system in which an on-board device equipped with a train position detection function and a ground device installed on the ground control trains using wireless communication, and includes a reception step of receiving a request from a train to pass through a switch, a determination step of determining whether or not to permit the train to pass through the switch based on the pass request received in the reception step, a drive control step of controlling the switching and locking of the switch permitted in the determination step, a registration step of registering the identification information of the train whose switch switching and locking has been completed in the drive control step in the permitted train storage unit, and a deletion step of deleting the train's identification information from the permitted train storage unit when a request to delete the registration of a switch is received from a train, wherein the determination step is characterized in that, if the route of the train for which the pass request has been received does not intersect with the route of a train whose identification information is registered in the permitted train storage unit at a switch, the switch control device is instructed to execute a process to permit the train for which the pass request has been received to pass through the switch. [Effects of the Invention]

[0010] This invention allows for the direct control of points by utilizing the train ID, which is a characteristic of wireless train control systems. [Brief explanation of the drawing]

[0011] [Figure 1] Figure 1 shows an example of the configuration of a wireless train control system according to an embodiment. [Figure 2] Figure 2 is a block diagram showing the configuration of the switch control device according to the embodiment. [Figure 3] Figure 3 is a diagram illustrating the functions of the switch control device according to the embodiment. [Figure 4] Figure 4 shows a route configuration with single-acting points installed. [Figure 5] Figure 5 shows the configuration of the authorized train memory unit in the case of a single-acting switch. [Figure 6]Figure 6 shows a route configuration with a double-acting switch installed. [Figure 7] Figure 7 shows the configuration of the authorized train memory unit in the case of a double-acting switch. [Figure 8] Figure 8 is a flowchart illustrating the switch control process of the switch control device. [Modes for carrying out the invention]

[0012] An example of an embodiment of the present invention will be described below with reference to the drawings.

[0013] (Configuration of the wireless train control system) Figure 1 shows the configuration related to switch control of the wireless train control system in this embodiment. The wireless train control system controls the switch 2 using wireless communication between an onboard device 10 of train 1 equipped with a vehicle position detection function and a ground-based switch control device 3 installed on the ground. Note that Figure 1 shows the switch control portion of the wireless train control system configuration, and ground-based devices such as an operation management device and a train information management device that manage the operation of train 1 and manage train information via wireless communication with the onboard device 10 of train 1 are not shown. Also, for simplicity, only two trains 1 are shown in Figure 1, but the system is not limited to cases where there are two trains 1.

[0014] Figure 2 shows the configuration of the switch 2 and the switch control device 3.

[0015] The switch 2 comprises a switch machine 21 and a turnout 22. The switch machine 21 is an electric switch machine controlled by a control signal from the switch control device 3, and performs switching by moving the tongue rail of the turnout 22 to make it tightly attached to the base rail, and locking it to prevent switching by external forces such as vibrations and shocks from trains by holding the tongue rail in a tight position. The switch machine 21 also performs unlocking to release the locked state.

[0016] The transfer control device 3 is an electronic device that controls the operation of switching, locking, and unlocking of the transfer machine 21 that drives the branch device 22 of the transfer device 2. The transfer control device 3 has a control unit 31, a communication unit 32, a storage unit 33, and an interface unit (I / F unit) 34.

[0017] The control unit 31 is composed of a CPU or the like, communicates with the on-vehicle device 10 or other ground devices, and performs transfer control.

[0018] The communication unit 32 performs wireless communication with the on-vehicle device 10 of the train 1, receives a request signal for switching or locking of the transfer machine 21 transmitted from the on-vehicle device 10, and has a communication function of transmitting signals such as permitting or not permitting switching and locking.

[0019] The storage unit 33 includes a transfer control program storage unit 331 that stores the transfer control program executed by the control unit 31, a permitted train storage unit 332 that is a memory area for registering the ID of the train that permits transfer, and a conversion / locking presence / absence storage unit 333 that stores the state information of the transfer device 2 such as the presence / absence of transfer conversion and locking. The interface unit (I / F unit) 34 is connected to the transfer machine 21 and outputs the control signals for switching and locking of the transfer machine 21 and the control signal for unlocking the lock, which are supplied from the control unit 31, to the transfer machine 21.

[0020] Figure 3 shows the functional block of the transfer control executed by the control unit 31. The control unit 31 functions as a reception unit 311, a determination unit 312, a drive control unit 313, a registration unit 314, and a deletion unit 315 by executing the transfer control program in the transfer control program storage unit 331.

[0021] The reception unit 311 receives a passing request for the transfer device 2 from the on-vehicle device 10 of the train 1.

[0022] The determination unit 312 determines whether to permit the switching and locking of the switch 2 based on the passage request received by the reception unit 311. The determination unit 312 determines whether to permit the switching and locking of the switch 2 by checking whether the route of the train 1 for which the passage request has been received intersects with the route of the train 1 whose ID is registered in the permitted train storage unit 332 of the storage unit 33 at the switch 2. If they do not intersect, the determination unit 312 permits the switching and locking of the switch 2 for the train 1 for which the passage request has been received. On the other hand, if the route of the train 1 for which the passage request has been received intersects with the route of the train 1 whose ID is registered in the permitted train storage unit 332 at the switch 2, the determination unit 312 does not permit the switching and locking of the switch 2 for the train 1 for which the passage request has been received.

[0023] The drive control unit 313 outputs a control signal for switching or locking to the switch 2, which has been authorized for switching and locking by the determination unit 312, via the interface unit 34.

[0024] When the switching and locking of the points 2 through which train 1, for which a passage request has been accepted, will pass is completed, the registration unit 314 registers the ID of train 1 in the authorized train storage unit 332. In other words, the registration unit 314 registers the ID of train 1 whose points 2 have been switched or locked by the drive control unit 313 in the authorized train storage unit 332.

[0025] When the deletion unit 315 receives a request to unlock from train 1 that has passed through the switch 2 and the unlocking point, it deletes the train ID registered in the authorized train memory unit 332.

[0026] (Specific examples of the decision-making process in the decision-making unit 312 and the registration process in the registration unit 314 to the authorized train storage unit 332) The decision-making process in the decision unit 312 will now be explained. Train 1 is operated according to the interlocking logic under the management of the operation management device. When the train route in the complex interlocking logic table is simplified using graph theory, the route that passes through one turnout 2 on the track is reduced to four routes. Here, "route" refers to the path information of the train that the operation management device has, and in other words, it indicates the train's path.

[0027] Figure 4 shows a route configuration with a single-acting switch 2 installed. As shown in Figure 4A, there are four possible routes for trains passing through track L where the single-acting switch 2 is installed. Specifically, there are four routes: the straight route R1 (running to the right in the diagram), the reverse route R2 (running to the left in the diagram), the branching straight route R3 (running from left to right downwards in the diagram), and the branching reverse route R4 (running from right downwards to left in the diagram). The switch 2 controls the following: for route R1, it is in the normal position and facing the train; for route R2, it is in the reverse position and facing the train; for route R3, it is in the normal position and facing the train; and for route R4, it is in the reverse position and facing the train.

[0028] These four routes intersect with each other at the points 2. As described above, the determination unit 312 permits the switching and locking of points 2 for train 1 for which a passage request has been received if the route of train 1 does not intersect at points 2 with the route of train 1 whose ID is registered in the permitted train storage unit 332. However, if they intersect, permission is not granted. In the case of the single-acting points 2 shown in Figure 4, exclusive control is performed such that permission is granted if the route is the same as the route of the train with the registered ID, but not if it is not the same route.

[0029] Figure 5 shows the configuration of the authorized train storage unit 332 in the case of a single-acting switch 2. In the case of a single-acting switch 2, registration frames W-R1, W-R2, W-R3, and W-R4 are provided, corresponding to each of the four routes, and the IDs of trains 1 that are authorized to switch and lock the switch 2 passing through are registered therein.

[0030] For example, in the example in Figure 5, on route R1, switching and locking of switch 2 is permitted for train A, and train A's IDa is registered in registration frame W-R1. In this case, train C's request to pass through route R2, which is different from train A's route R1, is subject to exclusive control and is not permitted (indicated by an "x" in Figure 5). However, the request for train B, which follows train A on the same route R1, is not subject to exclusive control and is permitted because the routes do not intersect at switch 2.

[0031] Figure 6 shows a route configuration with two double-acting points 2 installed. As shown in Figure 6A, there are six possible routes for train 1 passing through a track with two double-acting points 2A and 2B installed, as shown in Figure 6B. Specifically, there are six routes: down line down direction (route R11), down line up direction (route R12), down line down direction to up line down direction (route R13), up line up direction to down line up direction (route R14), up line down direction (route R15), and up line up direction (route R16).

[0032] In these six routes, Route R11 does not intersect with Route R15 and Route R16 at Point 2A. Similarly, Route R12 does not intersect with Route R15 and Route R16 at Point 2A. In other words, Route R15 does not intersect with Route R11 and Route R12 at Point 2. Similarly, Route R16 does not intersect with Route R11 and Route R12 at Point 2. That is, mutual exclusion control does not occur between "Route R11 and Route R12" and "Route R15 and Route R16".

[0033] Figure 7 shows the configuration of the authorized train storage unit 332 in the case of a dual-acting switch 2. In the case of a dual-acting switch 2, registration frames W-R11, W-R12, W-R13, W-R14, W-R15, and W-R16 are provided, corresponding to each of the six routes, and the train IDs of trains 1 that are authorized to switch and lock the switch 2 passing through are registered therein.

[0034] For example, in the example in Figure 7, on route R11, the switching and locking of point 2 is permitted for train A, and train A's IDa is registered in registration slot W-R11. In this case, the switching and locking of point 2 is not permitted for train C's request to pass through route R12 (indicated by an "x" in Figure 7). On the other hand, the switching and locking of point 2 is permitted for train D's request to pass through route R15, which does not intersect with train A's route R11.

[0035] As described above, when switching and locking of the switch 2 is permitted, the drive control unit 313 outputs a control signal to the switch 2 via the interface unit 34 to perform the switching or locking of the switch 2.

[0036] Once the drive control unit 313 has completed the switching or locking of the switch 2, the registration unit 314 registers the ID of the train 1 that has been authorized to switch or lock the switch 2 into the registration slot of the authorized train storage unit 332. In the example in Figure 5, the IDb of train B is registered in the registration slot W-R1 of route R1. In the example in Figure 7, the IDd of train D is registered in the registration slot W-R15 of route R15.

[0037] (Turn switch control processing) Next, the switch control process of the switch control device 3 will be explained with reference to the flowchart in Figure 8.

[0038] In step S1, the control unit 31 of the switch control device 3 waits until the reception unit 311 receives a request from the train to pass through the switch 2. This request to pass through the switch 2 is made when a pass request signal, which includes the train ID, which is the identification information of the train 1, is transmitted wirelessly from the onboard device 10.

[0039] In step S1, when a request to pass through the switch 2 is received, in step S2, the determination unit 312 determines whether or not to permit the switching and locking of the switch 2 based on the pass request received by the reception unit 311, as explained with reference to Figures 4 to 7.

[0040] If, in step S2, it is determined that switching and locking the switch 2 is not permitted, in step S3, the control unit 31 notifies the onboard equipment 10 of train 1 via the communication unit 32 of this fact.

[0041] If, in step S2, a decision is made to permit the switching and locking of the switch 2, in step S4, the drive control unit 313 controls the switching or locking of the switch 2. Once the switching or locking of the switch 2 is complete, the control unit 31 notifies the onboard equipment 10 of the train 1 via the communication unit 32.

[0042] Next, in step S5, the registration unit 314 registers the ID of train 1, which is authorized to switch and lock the points 2, in the registration window of the authorized train storage unit 332 corresponding to the route of train 1.

[0043] When train 1 passes over a switch 2 that has been switched or locked, and passes the unlocking point, the onboard equipment 10 of train 1 transmits an unlocking request to the switch control device 3. When the control unit 31 receives this unlocking request signal in step S6, in step S7 it unlocks the switch 2 via the drive control unit 313 and deletes the ID of that train from the authorized train storage unit 332 via the deletion unit 315.

[0044] The process described above is executed repeatedly.

[0045] The above-described embodiment is a wireless train control system in which the onboard equipment of the train and the switch control device communicate directly via wireless communication to control the switching, locking, and unlocking of the points. However, it is also possible for the onboard equipment of the train and the ground equipment, namely the train management device and the train operation management device, to communicate via wireless communication, and for the train to communicate via wireless communication with these management devices and other wireless devices as ground equipment to control the points. It is also possible for the switch control device not to have a communication unit for wireless communication with the onboard equipment, and for the switch control device to communicate with other ground equipment via wired connections.

[0046] The explanation states that the registration of train 1's ID in the authorized train memory unit 332 is performed after the switching and locking control of the points, but it may also be done simultaneously with the control of the points, or simultaneously with the decision on whether to permit or deny the train.

[0047] (Note) The present invention is understood as follows. (1) Switch control using routes that do not intersect with switches. The above-mentioned switch control device is In a wireless train control system in which an on-board device 10 of a train 1 equipped with a vehicle position detection function and a ground device installed on the ground control the train using wireless communication, The above-mentioned ground equipment includes a switch control device 3 that controls the switching and locking of the switch 2, The aforementioned switch control device 3 is A reception unit 311 that receives requests from the aforementioned train 1 to pass through the aforementioned switch 2, A determination unit 312 determines whether or not to permit the train 1 to switch and lock the points 2 based on the passage request received by the reception unit 311, A drive control unit 313 controls the switching and locking of the switch 2 authorized by the determination unit 312, The registration unit 314 registers the ID of the train 1, which has been switched and locked by the drive control unit 313, as identification information for the train 1, in the authorized train storage unit 332. When a request to delete the registration of the switch 2 from the aforementioned train 1 is received, the authorized train storage unit 332 deletes the ID of the aforementioned train 1 that is registered therein from the deletion unit 315. Equipped with, The determination unit 312, if the route of the train 1 for which the passage request has been received does not intersect with the route of the train 1 whose ID is registered in the authorized train storage unit 332 at the switch 2, permits the switching and locking of the switch 2 for the train 1 for which the passage request has been received. It is characterized by the following:

[0048] This system controls the switch 2 using a route that does not intersect with the switch 2. If the route of train 1 for which a pass request has been received does not intersect with the route of train 1 whose ID is registered in the authorized train memory unit 332 at the switch 2 (i.e., the switch 2 does not operate), then regardless of whether both are located within the block section, the system allows the switch 2 to operate (in other words, to pass) for train 1 for which a pass request has been received. This makes it possible to directly control the switch 2 by utilizing the train ID, which is a feature of wireless train control systems, and enables the realization of movable block around the switch 2.

[0049] When multiple trains 1 pass over the same point 2 in succession, that is, when the routes of multiple trains 1 do not intersect at point 2, point 2 does not operate. Therefore, no improper switching of point 2 occurs, and multiple trains 1 can safely pass over point 2 even when they are located within a branch section composed of the same point 2. As a result, complex interlocking logic construction for the interlocking device becomes unnecessary, and associated inspections can also be streamlined. Furthermore, individual designs become unnecessary, and the number of spare parts is significantly reduced.

[0050] (2) Single-acting points Furthermore, the switch control device 3 controls the single-acting switch 2, The aforementioned routes are, in the single-acting switch 2, facing each other in the normal position, facing each other in the reverse position, facing each other in the normal position, and facing each other in the reverse position. The determination unit 312 performs mutual exclusion control on the route (Figures 4 and 5). It is characterized by the following:

[0051] The routes of trains passing through the track equipped with the single-acting turnout 2 intersect with each other. Therefore, by applying mutual exclusion control to these routes, it is possible to realize movable block around the single-acting turnout 2.

[0052] (3) Double-acting points Furthermore, the switch control device 3 controls the dual-acting switch 2, The aforementioned routes are the downward direction of the down line, the upward direction of the down line, the direction from the downward direction of the down line to the downward direction of the up line, the direction from the upward direction of the up line to the downward direction of the down line, the downward direction of the up line, and the upward direction of the up line in the double-acting switch 2. The determination unit 312 performs mutual exclusion control for routes that intersect with the points, but does not perform mutual exclusion control for routes that do not intersect with the points 2 (Figures 6 and 7). It is characterized by the following:

[0053] Thus, since the wireless train control system can accommodate the dual-acting points 2, it becomes possible to use the dual-acting points 2, and compared to using the single-acting points 2, the amount of cable to be laid can be reduced, thus simplifying the facilities.

[0054] [Supplementary explanation of the embodiment] The embodiments described above are all preferred examples of the present invention. The numerical values, components, arrangement positions and connection configurations of the components, and processing order in the flowcharts shown in the following embodiments are examples only and are not intended to limit the present invention. Furthermore, the figures are not necessarily strictly illustrative.

[0055] Although embodiments of the present invention have been described above, these embodiments only illustrate a portion of the applications of the present invention, and are not intended to limit the technical scope of the present invention to the specific configurations of the embodiments described above. Furthermore, the present invention is not limited by the embodiments. Moreover, the components in the embodiments include those that can be easily conceived by those skilled in the art, those that are substantially the same, and those that fall within the so-called equivalent range. Furthermore, the components disclosed in the embodiments below can be combined as appropriate. [Explanation of symbols]

[0056] 1 train 2 points 3. Switch control device 10 Onboard equipment 21 Switch 22 Branch switches 31 Control Unit 32 Communications Department 33 Storage section 34 Interface section 311 Reception Department 312 Judgment Department 313 Drive Control Unit 314 Registration Department 315 Deleted section 331 Switch control program storage unit 332 Permitted train storage section 333 Conversion Locking Presence / Absence Memory Unit

Claims

1. In a wireless train control system in which onboard equipment equipped with a vehicle position detection function and ground equipment installed on the ground control the train using wireless communication, The above-mentioned ground equipment includes a switch control device that controls the switching and locking of the switches, The aforementioned switch control device is A reception area that receives requests from the aforementioned train to pass through the aforementioned points, A determination unit that determines whether or not to permit the train to switch and lock the points based on the passage request received by the reception unit, A drive control unit that controls the switching and locking of the points authorized by the determination unit, A registration unit that registers identification information of the train whose points have been switched and locked by the drive control unit into the authorized train storage unit, When a request to delete the registration of the points from the aforementioned train is received, the deletion unit deletes the identification information of the train from the authorized train storage unit. Equipped with, The determination unit, if the route of the train for which the passage request has been received does not intersect with the route of the train for which identification information is registered in the authorized train storage unit at the points, permits the switching and locking of the points for the train for which the passage request has been received. A wireless train control system characterized by the following:

2. In the wireless train control system according to claim 1, The aforementioned switch control device controls the single-acting switch, The aforementioned routes are, in the single-acting switch, facing each other in the normal position, facing each other in the reverse position, facing each other in the normal position, and facing each other in the reverse position. The determination unit executes mutual exclusion control on the route. A wireless train control system characterized by the following:

3. In the wireless train control system according to claim 1 or 2, The aforementioned switch control device controls the dual-acting switch, The aforementioned routes are the downward direction of the down line, the upward direction of the down line, the direction from the downward direction of the down line to the downward direction of the up line, the direction from the upward direction of the up line to the downward direction of the down line, the downward direction of the up line, and the upward direction of the up line in the double-acting switch. The determination unit performs mutual exclusion control for routes that intersect with the points, and does not perform mutual exclusion control for routes that do not intersect with the points. A wireless train control system characterized by the following:

4. In a wireless train control system that controls the switching and locking of points in a wireless train control system in which onboard equipment equipped with a self-vehicle position detection function and ground equipment installed on the ground control the train using wireless communication, A reception area that receives requests from the aforementioned train to pass through the aforementioned points, A determination unit that determines whether or not to permit the train to switch and lock the points based on the passage request received by the reception unit, A drive control unit that controls the switching and locking of the points authorized by the determination unit, A registration unit that registers identification information of the train whose points have been switched and locked by the drive control unit into the authorized train storage unit, When a request to delete the registration of the points from the aforementioned train is received, the deletion unit deletes the identification information of the train from the authorized train storage unit. Equipped with, The determination unit, if the route of the train for which the passage request has been received does not intersect with the route of the train for which identification information is registered in the authorized train storage unit at the points, permits the switching and locking of the points for the train for which the passage request has been received. A switch control device characterized by the following features.

5. In a switch control method for a wireless train control system in which a train onboard device equipped with a vehicle position detection function and a ground device installed on the ground control the train using wireless communication, the method controls the switching and locking of the points, A reception step for receiving a request from the aforementioned train to pass through the aforementioned switch, A determination step in which, based on the request for passage received in the reception step, a determination step is made to determine whether or not to permit the train to switch the points and lock them, A drive control step that controls the switching and locking of the switch permitted in the judgment step, A registration step in which the identification information of the train whose points have been switched and locked in the drive control step is registered in the authorized train storage unit, When a request to delete the registration of the points is received from the aforementioned train, a deletion step is made to delete the identification information of the train from the authorized train storage unit. Includes, The determination step, if the route of the train for which the passage request has been received does not intersect with the route of the train for which identification information is registered in the authorized train memory unit at the points, permits the switching and locking of the points for the train for which the passage request has been received. A switch control method characterized by the following features.

6. A program executable by the computer of a switch control device that controls the switching and locking of switches in a wireless train control system in which an on-board device equipped with a train position detection function and a ground device installed on the ground control trains using wireless communication, A reception step for receiving a request from the aforementioned train to pass through the aforementioned switch, A determination step in which, based on the passage request received in the reception step, a determination step is made to determine whether or not to permit the train to pass through the points, A drive control step that controls the switching and locking of the switch permitted in the judgment step, A registration step in which the identification information of the train whose points have been switched and locked in the drive control step is registered in the authorized train storage unit, When a request to delete the registration of the points is received from the aforementioned train, a deletion step is made to delete the identification information of the train from the authorized train storage unit. Includes, The determination step, if the route of the train for which the passage request has been received does not intersect with the route of the train for which identification information is registered in the permitted train memory unit at the point, grants permission for the train for which the passage request has been received to pass through the point. A program that instructs the railway switch control system to perform a process.

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