JP7106198B2 - railroad crossing system - Google Patents

Description

The present invention relates to a railroad crossing system configured to calculate a railroad crossing arrival time until a train reaches the railroad crossing and control a railroad crossing device installed at the railroad crossing based on the calculated railroad crossing arrival time.

Patent Literature 1 describes a level crossing train passage time announcement system that notifies drivers of vehicles and pedestrians at a level crossing when a train will pass through the level crossing. A railroad crossing train passage time notice system described in Patent Document 1 includes a speed measuring device that is provided at a predetermined point where a train approaching a railroad crossing passes and measures the speed of the train, and the train measured by the speed measuring device. and the distance between the predetermined point and the railroad crossing; and a display terminal for displaying the railroad crossing passing time.

Japanese Unexamined Patent Application Publication No. 2006-1506

When the train travels toward the railroad crossing at a constant speed, the railroad crossing train passage time notice system can relatively accurately calculate the railroad crossing passage time of the train, the railroad crossing arrival time of the train, and the like. . However, the train may accelerate or decelerate (including stopping) on the way from the predetermined point to the railroad crossing. There is a risk that the time the train passes through the railroad crossing, the time the train reaches the railroad crossing, etc., and the actual time the train passes the railroad crossing, the time the train reaches the railroad crossing, etc., are greatly different from each other.

Accordingly, the present invention provides a railroad crossing system capable of accurately calculating the arrival time of a train at a railroad crossing and controlling a railroad crossing device installed at the railroad crossing even when the train accelerates or decelerates on the way to the railroad crossing. intended to provide

According to one aspect of the present invention, a railroad crossing system includes an arrival time calculation device that is mounted on a train and repeatedly calculates and transmits the railroad crossing arrival time of the train based on the position and speed of the train and the position of the railroad crossing; When the approach of the train to the railroad crossing is detected by a railroad crossing controller installed on the ground side and the received railroad crossing arrival time is less than a predetermined time, and the approach of the train to the railroad crossing is detected by the railroad crossing controller. and if the level crossing arrival time is not received, the level crossing device is operated to block the road, and if the level crossing arrival time longer than the predetermined time is received, the level crossing device is operated. and a control device that stops the to open the road .

In the railroad crossing system, the arrival time calculation device repeatedly calculates and transmits the railroad crossing arrival time of the train based on the position and speed of the train and the position of the railroad crossing. Therefore, even if the train accelerates or decelerates on the way to the railroad crossing, the arrival time calculation device can calculate the railroad crossing arrival time of the train using the speed of the train after acceleration or deceleration. can. Therefore, the railroad crossing arrival time of the train can be calculated with high accuracy, and the control device can control the railroad crossing device based on the railroad crossing arrival time of the train calculated with high accuracy.

1 is a diagram showing a schematic configuration of a railroad crossing system according to an embodiment of the present invention; FIG. 4 is a flowchart for explaining the operation of an arrival time calculation device that constitutes the railroad crossing system; 4 is a flowchart for explaining the operation of an arrival time calculation device that constitutes the railroad crossing system; 4 is a flowchart for explaining the operation of an arrival time calculation device that constitutes the railroad crossing system; 4 is a flowchart for explaining the operation of a control device that constitutes the railroad crossing system; 4 is a flowchart for explaining the operation of a control device that constitutes the railroad crossing system; 4 is a flowchart for explaining the operation of a control device that constitutes the railroad crossing system; 4 is a flowchart for explaining the operation of a control device that constitutes the railroad crossing system; It is a figure which shows schematic structure of the railroad crossing system which concerns on a modification.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, ATC means automatic train control.

FIG. 1 is a diagram showing a schematic configuration of a railroad crossing system according to one embodiment of the present invention. As shown in FIG. 1, a train T running on a railroad crossing C has a first on-board coil 11, a second on-board coil 12, a speed generator 13, a detector 14, and an ATC on-board device 15. , an arrival time calculation device 16 and an on-board wireless device 17 are mounted.

The first on-board coil 11 receives information indicating the stop position where the train T should stop (hereinafter referred to as "stop location information”).

The second on-board coil 12 is configured to take in point information (absolute position information) from a position correction ground coil 22 installed at a predetermined position on the railroad track R.

The tachometer 13 is a device for detecting the speed of the train T and the traveling distance of the train T. FIG. The tachometer 13 is attached to the axle of the train T, and is configured to output a signal corresponding to the rotational speed of the axle.

The detection device 14 detects the speed of the train T based on the output signal of the tachometer generator 13, and the travel of the train T obtained from the point information received by the second on-board coil 12 and the output signal of the tachometer 13. It is configured to detect the position of the train T based on the distance. In this embodiment, the detection device 14 continuously or intermittently detects the speed of the train T and the position of the train T so as to continuously detect the speed of the train T and the position of the train T. configured to update

The ATC on-board device 15 constitutes a train safety device for ensuring safe running of each train traveling on the track R together with an ATC ground device 23 described later. The train security device is configured to ensure safe running of the trains by slowing and/or stopping the trains as required.

In this embodiment, the ATC on-board device 15 includes the stop position information fetched from the ATC loop or the like 21 by the first on-board coil 11, the position of the train T detected by the detector 14, and the position of the train T detected by the detecting device 14. An operation pattern (mainly a deceleration pattern) of the train T from the current position of the train T to the stop position is created based on the information about the track R stored in the upper database. The ATC on-board device 15 is configured to mainly control the brake device of the train T so that the train T runs according to the created operation pattern. Specifically, the ATC on-board device 15 controls the brake device so that the speed of the train T detected by the detection device 14 does not exceed the allowable speed (speed limit) indicated in the operation pattern.

Further, the ATC on-board device 15 is configured to output the created operation pattern to the arrival time calculation device 16 when the operation pattern of the train T is created.

Here, for the train T stopped based on the stop position information, the stop position information (the stop position where the train T should stop) is changed, the driver of the train T performs the departure operation of the train T, and When the driver of the train T releases the brake device, the running can be resumed.

The arrival time calculation device 16 is configured to calculate (predict) the time required for the train T to reach the railroad crossing C (hereinafter referred to as "the railroad crossing arrival time of the train T"). In this embodiment, the arrival time calculation device 16 stores the position of the railroad crossing C, the acceleration pattern of the train T from a stopped state (hereinafter simply referred to as "the acceleration pattern of the train T"), and the like. Alternatively, the arrival time calculation device 16 can appropriately retrieve the position of the railroad crossing C (specifically, the position of the railroad crossing C that the train T is scheduled to pass next), the acceleration pattern of the train T, and the like from the on-board database. configured to allow Then, when the train T approaches the railroad crossing C by the first predetermined distance, the arrival time calculation device 16 starts calculating the railroad crossing arrival time of the train T, and waits until the train T reaches the railroad crossing C. is configured to repeatedly calculate the railroad crossing arrival time. In addition, when the arrival time calculation device 16 calculates the railroad crossing arrival time of the train T, the arrival time calculation device 16 transmits a radio signal including the calculated railroad crossing arrival time of the train T to the control device 28 described later via the on-board radio 17. is configured to send

In this embodiment, the arrival time calculator 16 basically calculates the railroad crossing arrival time of the train T based on the position of the railroad crossing C and the position and speed of the train T detected by the detector 14 . calculate. Specifically, the arrival time calculation device 16 calculates the distance from the train T to the railroad crossing C based on the position of the railroad crossing C and the position of the train T detected by the detection device 14, and from the calculated train T By dividing the distance to the railroad crossing C by the speed of the train T detected by the detector 14, the railroad crossing arrival time of the train T is calculated.

Here, when the speed of the train T is 0 (that is, when the train T stops), the arrival time calculation device 16 calculates a preset maximum time (the maximum value of the railroad crossing arrival time). It is calculated as the railroad crossing arrival time.

Further, in this embodiment, when the driver of the train T performs the departure operation of the train T, a signal indicating that the departure operation has been performed is input to the arrival time calculation device 16. . Then, the arrival time calculation device 16 calculates the following when the driver of the train T performs the departure operation of the train T after the train T stops before the railroad crossing C, that is, after the speed of the train T becomes 0. is configured to calculate (predict) the arrival time of the train T at the railroad crossing based on the stop position of the train T, the position of the railroad crossing C, and the acceleration pattern of the train T.

Furthermore, in the present embodiment, when the operation pattern of the train T is created by the ATC on-board device 15, the arrival time calculation device 16 can calculate the railroad crossing arrival time of the train T using the operation pattern. can. That is, the arrival time calculation device 16 calculates the level crossing arrival time of the train T using the speed (permissible speed) of the train T indicated in the operation pattern in addition to or instead of the speed of the train T detected by the detection device 14 . can be calculated.

Further, as shown in FIG. 1, in addition to the above-described ATC loop and the like 21 and the position correction ground coil 22, there are an ATC ground device 23, a railroad crossing signal 24, a railroad crossing device 25, and a first railroad crossing. A controller 26, a second railroad crossing controller 27 and a control device 28 are provided.

The ATC ground device 23 is connected to a train detection device 31, an interlocking device 32, an operation management system 33, and the like via communication lines. The train detection device 31 is a device for detecting the position of each train on the track R. The train detection device 31 is configured, for example, to detect the presence or absence of a train in a section corresponding to each ATC loop or the like 21 . The ATC ground equipment 23 sets the stop position (or stop section) where the train T should stop based on the position of the preceding train of the train T (on-track section) and the route conditions of the train T, and determines the set stop position ( or stop section) is passed through a predetermined ATC loop or the like 21 as the stop position information.

The train railroad crossing signal 24 is installed near the railroad crossing C (specifically, immediately before the railroad crossing C in the running direction of the train T), and performs signal indication for each train approaching the railroad crossing C. The signal presentation performed by the railroad crossing signal 24 for trains includes a progress presentation that permits entry into the railroad crossing C and a stop presentation that prohibits entry into the railroad crossing C (instructs to stop before the railroad crossing C). including.

The railroad crossing device 25 is installed at the railroad crossing C. In this embodiment, the railroad crossing device 25 includes a railroad crossing warning device 251 that warns by sound and/or light that the train T is approaching the railroad crossing C, and a railroad crossing warning device 251 that blocks the road crossing the railroad R when operating, and the above-mentioned A railroad crossing gate 252 for opening the road and a display device 253 for displaying information related to the railroad crossing C are included.

Here, the train railroad crossing signal 24 and the railroad crossing device 25 (in particular, the railroad crossing alarm 251 and the railroad crossing gate 252) are configured to operate in conjunction with each other. Normally, when the railroad crossing alarm 251 and the railroad crossing barrier 252 are operating, the indication of the railroad crossing signal 24 is the progress indication, and when the railroad crossing alarm 251 and the railroad crossing barrier 252 are stopped, the railroad crossing signal for trains. 24 is designed to be the stop mode.

The first railroad crossing controller 26 is a device for detecting the train T approaching the railroad crossing C. As shown in FIG. The first railroad crossing controller 26 is installed at a position in front of the railroad crossing C in the running direction of the train T by a second predetermined distance (.ltoreq.the first predetermined distance). The second railroad crossing controller 27 is a device that detects a train T that has passed (crossed) a railroad crossing C. FIG. The second railroad crossing controller 27 is installed at a predetermined position ahead of the railroad crossing C in the running direction of the train T. As shown in FIG.

The control device 28 controls the operation of the train railroad crossing signal 24 and the railroad crossing device 25 . The control device 28 has a radio 281 . Further, the control device 28 detects that the train T has approached the railroad crossing C by the second predetermined distance via the first railroad crossing controller 26 , and the train T approaches the railroad crossing C via the second railroad crossing controller 27 . It is possible to detect that the Then, when the control device 28 inputs the railroad crossing arrival time of the train T transmitted from the on-board radio 17 of the train T via the radio 281, the control device 28 determines the level crossing arrival time of the train T based on the received railroad crossing arrival time. It is configured to control the railroad crossing signal 24 and the railroad crossing device 25 (the railroad crossing alarm 251, the railroad crossing gate 252 and the display device 253).

Next, the operation of the railroad crossing system, particularly the operation of the arrival time calculation device 16 and the operation of the control device 28 will be specifically described.

2 to 4 are flowcharts showing the operation of the arrival time calculation device 16. FIG.
FIG. 2 is a flow chart showing the process of determining whether or not to calculate the railroad crossing arrival time of the train T. As shown in FIG. In FIG. 2, the position of the train T is input from the detector 14 in step S1. In step S2, based on the position of the railroad crossing C and the position of the train T input in step S1, it is determined whether or not the train T has approached the railroad crossing C by the first predetermined distance. Then, when the train T approaches the railroad crossing C by the first predetermined distance, the process proceeds to step S3, and the railroad crossing arrival time of the train T is calculated. If it is possible to detect that the train T has passed the first railroad crossing controller 26 by the first railhead 11 or the second railhead 12, the train T passes the first railroad crossing controller 26 in step S1. You may make it determine whether it passed through.

FIGS. 3 and 4 are flow charts showing the calculation process of the railroad crossing arrival time of the train T executed in step S3 of FIG. In FIG. 3, at step S11, the position of the train T and the speed of the train T are input from the detector 14. FIG. In step S12, it is determined whether or not the train T has reached the railroad crossing C based on the position of the railroad crossing C and the position of the train T input in step S11. Then, if the train T has reached the railroad crossing C, this flow ends, and if the train T has not reached the railroad crossing C, the process proceeds to step S13. If it is possible to detect that the train T has passed the second railroad crossing controller 27 by the first railhead 11 or the second railhead 12, it is determined whether the train T has passed the railroad crossing C in step S12. You may make it determine whether or not.

At step S13, it is determined whether or not the train T is stopped, in other words, whether or not the speed of the train T input at step S11 is zero. If the train T has not stopped, the process proceeds to step S14, and if the train T has stopped, the process proceeds to step S20 (Fig. 4).

In step S14, the distance from the train T to the railroad crossing C is calculated based on the position of the railroad crossing C and the position of the train T input in step S11.

In step S15, it is determined whether or not the operation pattern of the train T has been input from the ATC on-board device 15 or not. If the operation pattern of the train T has not been input, the process proceeds to step S16, and if the operation pattern of the train T has been input, the process proceeds to step S17.

In step S16, the train T's railroad crossing arrival time is calculated based on the speed of the train T input in step S11 and the distance from the train T to the railroad crossing C calculated in step S14.

In step S17, the operation pattern of the train T is used, that is, in addition to or instead of the speed of the train T input in step S11, the speed (permissible speed) of the train T indicated in the operation pattern is used. The train T's arrival time at a railroad crossing is calculated.

In step S18, the train T's railroad crossing arrival time calculated in step S16 or step S17 is transmitted to the controller 28 via the on-board radio 17. FIG. Then, in step S19, the transmitted train T arrival time at the railroad crossing is cleared, and the process returns to step S11.

According to steps S11 to S19 described above, when the train T does not stop before the railroad crossing C, the position of the railroad crossing C is calculated based on the position of the train T and the speed of the train T input from the detector 14 and the position of the railroad crossing C. The railroad crossing arrival time of the train T (<the maximum time), or the railroad crossing arrival time of the train T calculated using the operation pattern of the train T created by the ATC on-board device 15 (the train security device) ( <the maximum time) will continue to be sent to the controller 28 .

In step S20 (step S13: YES, FIG. 4), the position of the train T (stop position) is determined based on the position of the railroad crossing C and the position of the train T input in step S11 (that is, the stop position of the train T). to the railroad crossing C.

In step S21, the maximum time is calculated as the train T's arrival time at the railroad crossing. In step S<b>22 , the railroad crossing arrival time of the train T (that is, the maximum time) is transmitted to the controller 28 via the on-board radio 17 .

In step S23, it is determined whether or not the driver of the train T has started the train T. If the departure operation of the train T has been performed, the process proceeds to step S24, and if the departure operation of the train T has not been performed, the process returns to step S22.

In step S24, the train T's arrival time at the railroad crossing (the maximum time) is cleared. In step S25, based on the distance from the stop position of the train T to the railroad crossing C calculated in step S20 and the acceleration pattern of the train T, the railroad crossing arrival time of the train T is calculated.

In step S<b>26 , the railroad crossing arrival time of the train T calculated in step S<b>25 is transmitted to the controller 28 via the on-board radio 17 . Then, in step S27, after clearing the level crossing arrival time of train T calculated in step S25, the process returns to step S11 (FIG. 3).

According to steps S20 to S27 described above, when the train T stops before the railroad crossing C, the maximum time is continuously transmitted to the controller 28 as the railroad crossing arrival time of the train T. When the departure operation of the train T is performed by the control device 28, the railroad crossing arrival time of the train T other than the maximum time (less than the maximum time) is transmitted to the control device 28 .

5 to 8 are flow charts showing the operation of the control device 28. FIG.
FIG. 5 is a flow chart showing a process for determining whether or not to control the railroad crossing signal 24 and the railroad crossing device 25 (the railroad crossing warning device 251, the railroad crossing gate 252, and the display device 253). In FIG. 5, in step S31, it is determined whether or not the train T has approached the railroad crossing C by the second predetermined distance, that is, whether or not the train T has been detected by the first railroad crossing controller 26 . When the train T approaches the railroad crossing C by the second predetermined distance, the process proceeds to step S32 to control the railroad crossing signal 24 and the railroad crossing device 25 for trains.

6 to 8 are flow charts showing the control of the train level crossing signal 24 and the level crossing device 25 executed in step S32 of FIG. In FIG. 6, in step S41, it is determined whether or not the train T has passed through the railroad crossing C, that is, whether or not the train T has been detected by the second railroad crossing controller 27 . If the train T has not passed the railroad crossing C, the process proceeds to step S42, and if the train T has passed the railroad crossing C, the process proceeds to step S46.

In step S42, it is determined whether or not the arrival time of the train T at the railroad crossing has been received. If the arrival time of the train T at the railroad crossing is received, the process proceeds to step S43, and if the arrival time of the train T at the railroad crossing is not received, the process proceeds to step S44. If the arrival time of the railroad crossing of the train T is not received, the train T does not have the arrival time calculation device 16, or the arrival time calculation device 16 of the train T and/or the on-board radio 17 are out of order. and so on.

In step S43, it is determined whether or not the railroad crossing arrival time of the train T received in step S42 is less than the first predetermined time. If the arrival time of the train T at the railroad crossing is less than the first predetermined time, the process proceeds to step S44, and if the arrival time of the train T at the railroad crossing is equal to or longer than the first predetermined time, the process proceeds to step S48 (FIG. 7). The first predetermined time is a time set in advance as a time to start the operation of the railroad crossing device 25 (especially the railroad crossing alarm 251 and the railroad crossing gate 252), and can be set to any time shorter than the maximum time. .

In step S44, the railroad crossing device 25 is operated. Specifically, the railroad crossing warning device 251 is operated to start warning, the railroad crossing barrier device 252 is operated to block the road, and the railroad crossing arrival time of the train T received in step S42 is displayed on the display device 253. Let Although not particularly limited, preferably, the railroad crossing warning device 251 is operated first, then the railroad crossing gate 252 is operated, and then the display device 253 is caused to display the arrival time of the train T at the railroad crossing. Then, in step S45, the mode of the train level crossing signal 24 is switched from the stop mode to the progress mode, and then the process returns to step S41. When the railroad crossing device 25 is already operating, the operating state of the railroad crossing device 25 is maintained. It is maintained as it is (progressive appearance).

In step S46 (step S41: YES), the railroad crossing device 25 is stopped. That is, the warning by the railroad crossing warning device 251 is stopped, the railroad crossing gate 252 is stopped to open the road, and the display of the railroad crossing arrival time of the train T by the display device 253 is stopped. Then, in step S47, the train level crossing signal 24 is switched from the progress mode to the stop mode, and this flow ends.

In step S48 (step S43: YES, FIG. 7), it is determined whether the arrival time of the train T received in step S42 is the maximum time, in other words, whether the train T has stopped before the railroad crossing C. determine whether or not If the arrival time of the train T at the railroad crossing is not the maximum time (if the train T does not stop), the process proceeds to step S49. ), the process proceeds to step S52 (FIG. 8).

In step S49, it is determined whether or not the railroad crossing arrival time of the train T received in step S42 is equal to or longer than the second predetermined time. If the time the train T reaches the railroad crossing is equal to or longer than the second predetermined time, the process proceeds to step S50, and if the time the train T reaches the railroad crossing is less than the second predetermined time, the process returns to step S41. The second predetermined time is a time set in advance as a time to stop the railroad crossing device 25 operated in step S44. The second predetermined time can be set to any time longer than the first predetermined time and shorter than the maximum time.

In step S50, the mode of the train level crossing signal 24 is switched from the progress mode to the stop mode. Then, after stopping the railroad crossing device 25 in step S51, the process returns to step S41. When the train level crossing signal 24 is already in the stop mode, the train level crossing signal 24 is maintained in the same state (stop mode). , the stop state of the railroad crossing device 25 is maintained.

In step S52 (step S48: YES, FIG. 8), similar to step S50, the display of the train level crossing signal 24 is switched from the progress display to the stop display. In step S53, the railroad crossing device 25 is stopped in the same manner as in step S51.

In step S54, it is determined whether or not the railroad crossing arrival time of the train T other than the maximum time has been received, in other words, whether or not the driver of the train T has performed the departure operation. Then, when the railroad crossing arrival time of the train T other than the maximum time is received (when the driver of the train T performs the departure operation), the process proceeds to step S55. The railroad crossing arrival time of the train T other than the maximum time received in step S54 is calculated based on the distance from the stop position of the train T to the railroad crossing C and the acceleration pattern of the train T in step S25 of FIG. It is the railroad crossing arrival time of the train T.

In step S55, it is determined whether or not the railroad crossing arrival time of the train T received in step S54 is less than the warning required time by the railroad crossing warning device 251. FIG. If the arrival time of the train T at the railroad crossing is less than the required warning time, the process proceeds to step S56. If the arrival time of the train T at the railroad crossing is equal to or longer than the required warning time, the process proceeds (returns) to step S43. The required warning time is the warning time required until the train T reaches the railroad crossing C, in other words, it should be secured from the start of the warning by the railroad crossing alarm 251 until the train T reaches the railroad crossing C. preset as time. The warning required time can be set to any time shorter than the first predetermined time. In this embodiment, the required warning time is set to at least 25 seconds or more, preferably 35 seconds or more.

In step S56, the railroad crossing warning device 251 and the railroad crossing gate 252 are operated. As a result, the warning by the railroad crossing alarm 251 is started, and the road is blocked by the railroad crossing barrier 252 . However, since the indication of the train level crossing signal 24 remains the stop indication, the train T is prohibited from entering the railroad crossing C.

In step S57, the alarm shortage time is calculated by subtracting the railroad crossing arrival time of the train T received in step S54 from the alarm required time.

In step S58, the alarm shortage time and the elapsed time from the operation start (alarm start) of the railroad crossing alarm device 251 are subtracted from the railroad crossing arrival time of train T received in step S44. By subtracting the elapsed time from the time, the arrival time of the train T at the railroad crossing is calculated.

In step S59, the display device 253 is caused to display the railroad crossing arrival time of the train T calculated in step S58.

In step S60, it is determined whether or not the insufficient warning time has elapsed since the start of operation of the railroad crossing warning device 251 (start of warning). If the warning insufficient time has elapsed, the process proceeds to step S61, and if the warning insufficient time has not elapsed, the process returns to step S58.

In step S61, the mode of the train level crossing signal 24 is switched from the stop mode to the progress mode. As a result, the train T can enter the railroad crossing C after the warning required time has passed since the warning by the railroad crossing warning device 251 was started.

In step S62, it is determined whether or not the train T has passed the railroad crossing C, as in step S41 (FIG. 6). Then, if the train T has not passed the railroad crossing C, the process returns to step S58. On the other hand, when the train T has passed the railroad crossing C, the railroad crossing device 25 is stopped in step S46 (FIG. 6), the train railroad crossing signal 24 is switched from the progress indication to the stop indication in step S47, and this flow ends. do.

The railroad crossing system according to the embodiment described above includes a detection device 14 mounted on a train T to detect the position of the train T and the speed of the train T; , and an arrival time calculation device 16 for calculating the arrival time of the train T based on the input position of the train T, the speed of the train T, and the position of the railroad crossing C; a control device 28 for inputting the railroad crossing arrival time of the train T calculated by the calculation device 16 and controlling the railroad crossing device 25 installed at the railroad crossing C based on the input railroad crossing arrival time of the train T. Here, the detection device 14 is configured to continuously detect the speed and position of the train T, and the arrival time calculation device 16 detects the train T when the train T approaches the railroad crossing C by the first predetermined distance. Calculation of the railroad crossing arrival time of T is started, and the calculation of the railroad crossing arrival time of the train T is repeated until the train T reaches the railroad crossing C.

Therefore, even if the train T accelerates or decelerates on the way to the railroad crossing C, the arrival time calculation device 16 can calculate the railroad crossing arrival time of the train T with high accuracy. The railroad crossing device 25 can be controlled based on the railroad crossing arrival time of the train T calculated in .

Further, when the operation pattern of the train T is input to the arrival time calculation device 16 from the ATC on-board device 15 constituting the train safety device, the arrival time calculation device 16 uses the operation pattern to A railroad crossing arrival time is calculated (step S15→step S17). Therefore, the arrival time calculation device 16 can calculate the railroad crossing arrival time of the train T more accurately.

Further, when the train T stops before the railroad crossing C, the arrival time calculation device 16 calculates the maximum time as the railroad crossing arrival time of the train T and transmits it to the control device 28 (step S13→steps S20 to S22). . Therefore, the control device 28 can easily determine whether the train T has stopped before the railroad crossing C or not. Then, when the train T stops before the railroad crossing C after operating the railroad crossing device 25 (especially the railroad crossing alarm 251 and the railroad crossing gate 252), the control device 28 causes the railroad crossing signal 24 for the train to indicate. It is configured to switch from the progress presentation to the stop presentation and to stop the railroad crossing device 25 (especially the railroad crossing alarm 251 and the railroad crossing gate 252) to open the road (step S48→steps S52 to S53). ). Therefore, the time required for the road to be blocked by the railroad crossing device 25 is prevented from becoming unnecessarily long, thereby reducing waiting times for pedestrians and automobiles at the railroad crossing and congestion at the railroad crossing.

In addition, when the driver of the train T stopped before the railroad crossing C performs the departure operation of the train T, the arrival time calculation device 16 calculates the position of the railroad crossing C, the stop position of the train T, and the acceleration pattern of the train T. , and transmits the calculated railroad crossing arrival time of the train T to the controller 28 (steps S23 to S26). Therefore, the arrival time calculation device 16 can calculate the railroad crossing arrival time of the train T and transmit it to the control device 28 before the train T actually starts (resumes) running after stopping before the railroad crossing C. , the control device 28 changes the arrival time of the train T input from the arrival time calculation device 16 from the maximum time to a time other than the maximum time, thereby causing the train T stopped before the railroad crossing C to stop running. It is possible to grasp what is about to be started (restarted).

Then, the control device 28 calculates the level crossing arrival time of the train T calculated by the arrival time calculation device 16 when the driver of the train T stopped before the level crossing C performs the departure operation of the train T. In the case of less than, the level crossing warning device 251 is first operated and the level crossing barrier device 252 is operated to block the road, and then the train level crossing signal 24 is displayed after waiting for the elapse of the warning shortage time. The stop mode is switched to the progress mode (steps S55 to S61). Therefore, even if the train T stops at a position relatively close to the railroad crossing C and then resumes running, it takes a sufficient time (alarm time) is ensured, and pedestrians, automobiles, etc. traveling on the road can safely evacuate outside the railroad crossing C.

Note that the control device 28 calculates the level crossing arrival time of the train T calculated by the arrival time calculation device 16 when the driver of the train T stopped before the level crossing C starts the train T, and If the time is longer than the first predetermined time, the railroad crossing warning device 251 is operated and the railroad crossing barrier device 252 is operated to block the road, and almost at the same time, the indication of the railroad crossing signal device 24 for trains is stopped. The display is switched to the progress display (step S55→steps S49 to S51).

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and further modifications and changes are possible based on the technical idea of the present invention.

For example, the arrival time calculation device 16 is mounted on the train T in the above-described embodiment. However, it is not limited to this. As shown in FIG. 9, the arrival time calculation device 16 may be installed on the ground side. In this case, the arrival time calculation device 16 has a wireless device 161 . Then, the on-board radio 17 mounted on the train T transmits a radio signal including the position of the train T detected by the detection device 14 and the speed of the train T to the arrival time calculation device 16 . The control device 28 inputs the railroad crossing arrival time of the train T calculated by the arrival time calculation device 16, and controls the train railroad crossing signal 24 and the railroad crossing device 25 (railroad crossing alarm 251, railroad crossing gate 252 and display device 253). do.

In the above-described embodiment, the control device 28 causes the display device 253 to display the railroad crossing arrival time of the train T calculated by the arrival time calculation device 16 . However, it is not limited to this. The control device 28 may cause the display device 253 to display information corresponding to the railroad crossing arrival time of the train T calculated by the arrival time calculation device 16 . For example, the control device 28 causes the display device 253 to display graphical information, character information, or a combination thereof representing the length of time train T reaches a railroad crossing. The display device 253 may display the time until the train T passes through the railroad crossing.

In the above-described embodiment, when the train T stops before the railroad crossing C, the arrival time calculation device 16 calculates the maximum time as the railroad crossing arrival time of the train T and transmits the maximum time to the control device 28 . However, it is not limited to this. The arrival time calculation device 16 indicates that the train T has stopped instead of calculating the railroad crossing arrival time of the train T and transmitting the maximum time to the control device 28 (steps S21 and S22 in FIG. 3). You may make it transmit train stop information to the control apparatus 28. FIG. In this case, the control device 28 determines whether or not the train stop information has been received in step S48 of FIG. If received, the process proceeds to step S52 (FIG. 8). 8, the control device 28 determines whether or not the arrival time of the train T at the railroad crossing has been received. If the arrival time of the train T at the railroad crossing has been received, the process proceeds to step S55.

11... First on-board child, 12... Second on-board child, 13... Speed generator, 14... Detecting device, 15... ATC on-board device (train safety device), 16... Arrival time calculating device, 17... On-board Wireless device 21...ATC loop etc. 22...Position correcting ground coil 23...ATC ground device (train security device) 24...Railway crossing signal for train 25...Railway crossing device 26...First railroad crossing controller 27... Second level crossing controller 28 Control device 31 Train detection device 32 Interlocking device 33 Operation control system 161 Wireless device (transmitter) 251 Railroad crossing alarm 252 Railroad crossing gate 253 ... display device, 281 ... wireless device (transmitter), C ... railroad crossing, R ... railroad track, T ... train

Claims (8)

an arrival time calculation device mounted on a train for repeatedly calculating and transmitting the arrival time of the train to a railroad crossing based on the position and speed of the train and the position of the railroad crossing;
When the approach of the train to the railroad crossing is detected by a railroad crossing controller installed on the ground side and the received railroad crossing arrival time is less than a predetermined time, and the approach of the train to the railroad crossing is detected by the railroad crossing controller. and if the level crossing arrival time is not received, the level crossing device is operated to block the road, and if the level crossing arrival time longer than the predetermined time is received, the level crossing device is operated. and a control device for opening the road by stopping the
railroad crossing system, including; The arrival time calculation device is configured to transmit train stop information when the train stops before the railroad crossing,
When the control device receives the train stop information, the control device stops the operated railroad crossing device.
The railroad crossing system according to claim 1. The arrival time calculation device starts calculating the railroad crossing arrival time of the train when the train approaches the railroad crossing by a predetermined distance, and until the train reaches the railroad crossing or the train passes the railroad crossing. Repeating the calculation of the railroad crossing arrival time of the train until it passes,
The railroad crossing system according to claim 1 or 2. When an operation pattern of the train is created by a train security device for ensuring safe running of each train traveling on the railroad crossing railroad track, the arrival time calculation device uses the operation pattern of the train. 4. The railroad crossing system according to any one of claims 1 to 3 , wherein the railroad crossing arrival time of is calculated. The railroad crossing device includes a display device,
The control device controls the display device to display the received railroad crossing arrival time or information corresponding thereto.
The railroad crossing system according to any one of claims 1 to 4 . The railroad crossing device includes a railroad crossing warning device that warns that the train is approaching the railroad crossing, and a railroad crossing barrier that blocks/opens the road that intersects the railroad at the railroad crossing,
When the approach of the train to the railroad crossing is detected by the railroad crossing controller and the received railroad crossing arrival time is less than the predetermined time, the controller detects the approach of the train to the railroad crossing by the railroad crossing controller. activating the railroad crossing alarm and activating the railroad crossing barrier to block the road if detected and the railroad crossing arrival time is not received ;
A railroad crossing system according to any one of claims 1 to 5 . When the driver of the train stopped in front of the railroad crossing performs the departure operation of the train, the arrival time calculation device determines the position of the railroad crossing, the stop position of the train, and the acceleration pattern from the stopped state of the train. The railroad crossing system according to any one of claims 1 to 6 , wherein the railroad crossing arrival time of the train is calculated based on. The control device is configured to further control a railroad crossing signal for trains that provides signal indications to trains approaching the railroad crossing,
The control device is
The arrival time of the train at the railroad crossing calculated by the arrival time calculation device when the driver of the train stopped before the railroad crossing performs the departure operation of the train is equal to or greater than the warning required time at the railroad crossing and the predetermined time. If less than, operate the railroad crossing warning device, operate the railroad crossing barrier to block the road, and almost simultaneously switch the mode of the train level crossing signal from the stop mode to the progress mode,
When the train's arrival time at the railroad crossing calculated by the arrival time calculation device is less than the warning required time when the driver of the train stopped before the railroad crossing performs the departure operation of the train, the railroad crossing alarm is issued. and operate the railroad crossing barrier machine to block the road, and then subtract the train level crossing arrival time calculated by the arrival time calculation device from the warning required time to obtain the warning shortage time. After waiting for the passage of time, switching the mode of the train level crossing signal from the stop mode to the progress mode;
The railroad crossing system according to claim 7 .

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