JP2002104192A - Electronic railroad crossing control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance a safety and an availability factor by carrying out a dual system control using a train detection sensor having no damage detection function. SOLUTION: When a train 34 is passed on a starting control element 12 and a pick up on ground 16, is passed through a railroad crossing 32 and is passed on a terminal control element 14, a detection signal is inputted to an input circuit 180 of a controller 18. A logic part 182 of the controller 18 carries out a signal-processing and processes a normal route by an alarm. The logic part 182 of the controller 18 carries out an alarm-processing of a back-up route by the pick up on ground 16 and the terminal control element 14. An incoincidence judgment logic part 184 judges whether or not the normal route and the alarm processing of the back-up route are incoincident with each other. If they are incoincident, the logic part 182 judges that any abnormality is a cause. In the case where it is judged that the normal route is only abnormal, it is left and the alarm processing is carried out by the back-up route. In the case where it is judged that the back-up route is only abnormal, it is left and the alarm processing is carried out by the normal route. In the case where it is judged that both routes are abnormal, it becomes system down.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic level crossing control device, and more particularly, to an input signal from a level crossing controller for detecting passage of a train and an AT for backing up the level crossing controller.
The present invention relates to an electronic level crossing control device including control means for controlling a level crossing safety device such as an alarm or a breaker based on an input signal from an S or the like.

[0002]

2. Description of the Related Art Conventionally, an electronic level crossing control device or the like has been used to control a level crossing security device such as an alarm or a breaker provided at a level crossing in an intermediate section of a station. In this electronic level crossing control device, for example, a starting controller and a ending controller, which are railroad crossing controllers, are installed at a certain distance before a railroad crossing and around a railroad crossing, and when a train passes through each controller. The controller takes in the detection signal and controls the operation of the crossing breaker and the alarm at a predetermined timing to secure the safety of the crossing. However, in the conventional electronic level crossing control device, in order to prepare for a case in which the above-mentioned level crossing control device fails, for example, an ATS (Automatic Train Stop: automatic train stop device) ground device or the like is provided near the start control device. Even if the start controller failed, the backup was performed by detecting the train on the ground.

[0003]

However, in such a conventional electronic level crossing control device, a detection condition by a level crossing controller and a backup condition such as an ATS grounding element are inserted in series with the controller. Therefore, if any one of the detection conditions causes a failure while falling, there is a problem that the entire railroad crossing is continuously warned due to chattering or tilting, or a continuous warning is provided due to failure detection. The present invention has been made in view of the above circumstances, and it is possible to control a dual system using a train detection sensor that does not have a failure detection function, thereby improving security and operating rate. An object is to provide an electronic level crossing control device that can be improved.

[0004]

According to the present invention, an input signal from a railroad crossing controller disposed before and after a railroad crossing and detecting passage of a train, and an input signal from an ATS or the like for backing up the railroad crossing controller are provided. An electronic level crossing control device having control means for controlling a level crossing safety device such as a warning device or a circuit breaker based on the input signal of the level crossing controller, the control device includes: A mismatch determination unit that determines whether the result of the alarm processing of the backup path based on an input signal such as the input signal is inconsistent, and when the alarm processing result of the normal path and the backup path is determined to be inconsistent by the mismatch determination means, An abnormality determining unit that determines whether there is an abnormality in the route alarm process, and a disconnecting unit that disconnects the path on the side determined to be abnormal by the abnormality determining unit. It is characterized in that there. According to this, on the basis of an input signal from a railroad crossing controller that detects the passage of a train and an input signal from an ATS or the like that backs up the railroad crossing controller, control of a railroad crossing safety device such as an alarm or a circuit breaker is performed. Control means for determining whether or not the result of the warning processing of the normal path based on the input signal of the railroad crossing controller and the result of the warning processing of the backup path based on the input signal of the ATS or the like are inconsistent. Is determined,
When it is determined that they do not match, the abnormality determining means determines which of the routes has an abnormality in the alarm processing, and the separating side determines that the route on which the abnormality has been determined is separated by the separating means. For this reason, it is possible to control the dual system using a train detection sensor such as an ATS ground sensor that does not have a failure detection function, and it is possible to improve security and improve the operation rate. Can be.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a diagram illustrating a schematic configuration of an electronic level crossing control device 10 according to the present embodiment. The electronic railroad crossing control device 10 in FIG. 1 controls the railroad crossing safety device 20 provided at the railroad crossing 32 in the middle section of the station, so that the start control provided on the line 30 that is a certain distance before the railroad crossing 32 as a railroad crossing controller. And an ATS grounding element 16 provided in the vicinity of the starting control 12 and a controller 18 as a control means. As the train 34 moves on the track 30, the controller 18 controls the level crossing security devices 20 such as alarms and circuit breakers installed at the level crossings 32. In addition, here, the controller 18 inputs a signal from a railroad crossing controller or a ground child 16 or an input circuit 180 as a disconnecting unit, a logic unit 182 as an abnormality determining unit, and a mismatch determining logic as a mismatch determining unit. It comprises a unit 184, an output circuit 186, and the like. The characteristic configuration of the electronic level crossing control device according to the present embodiment is that a train detection sensor such as a ground sensor that does not have a failure detection function forms a dual system, and two alarm processing results do not match. Is determined by the mismatch determination logic unit 184, the logic unit 182 is used to determine which one is abnormal, and the path on the side determined to be abnormal is separated using the input circuit 180. FIG. 2 is a simplified diagram of FIG.
FIG. 3 is a diagram showing two paths in the configuration diagram of FIG. As shown in FIG. 2, the start controller 12 and the end controller 14
A normal path is configured, and a backup path is configured by the ATS ground element 26 and the termination controller 14. The controller 18 includes a start controller 12 and an end controller 1
4, and an alarm process is performed based on the signal input from the ground terminal 26, and it is determined whether or not the results of the two alarm processes () are inconsistent. FIG. 3 is a diagram showing a combination in a case where the controller 18 in FIG. 2 determines that there is a mismatch and one of the alarm processes is abnormal, and FIG. 4 shows an operation of the electronic level crossing control device according to the present embodiment. It is a flowchart explaining.

Next, the operation of this embodiment will be described with reference to FIG. First, when the train 34 shown in FIG. 1 travels on the track 30 to the right in the figure and passes over the control element 12 for starting the level crossing controller and the ground element 16, the input circuit 18 of the controller 18 is turned on.
At 0, the detection signals are input from the start controller 12 and the ground controller 16, respectively. In addition, when the train 34 passes over the end control 14 after passing the railroad crossing 32, a detection signal is input from the end control 14 to the input circuit 180. At this time,
The logic unit 182 of the controller 18 performs these signal processings (step S100), and performs a warning process on the normal path by the start controller 12 and the end controller 14 (step S102). In parallel with this, the logic unit 182 of the controller 18 performs a warning process of the backup path by the ground controller 16 and the termination controller 14 (step S104). Next, the mismatch determination logic unit 184
It is determined whether or not the normal path alarm processing and the backup path alarm processing do not match (step S10).
6). Here, it is determined that there is a mismatch due to any one of the failures (missing or illegal fall) such as the start controller 12 being short-circuited or the grounding element 16 being broken. If it is determined in step S106 that there is a mismatch, the logic unit 182 determines which of the above and the mismatch has caused the mismatch (step S108). FIG. 3 shows a combination for judging the normality / abnormality.
The following five types can be given as examples.
In other words, when the alarm is stopped in the normal sequence and no alarm is issued, it is determined that there is an abnormality because the detection condition of the route is missed. If no alarm has been issued and an alarm has been stopped in a normal sequence, it is determined that is abnormal.
Further, when the alarm stops in the normal sequence and the alarm continues, it is determined that the path is abnormal due to illegal drop. If the alarm continues for a while and the alarm stops in a normal sequence, it is determined that is abnormal. If there is no alarm, a failure determination is made using a function other than the present invention.

In step S108, when it is determined that only the above is abnormal, the normal route is disconnected (step S110), and thereafter, an alarm process is performed using only the backup route (step S110). Step S112). In step S108, if it is determined that only the above is abnormal, the backup path is disconnected (step S114), and thereafter, the alarm process is performed using only the normal path (step S108). S116). Further, in step S108,
If both are determined to be abnormal, it is inevitable to disconnect any of the paths, and the system goes down (step S118). Returning to step S106 again, if the result is the same, the process proceeds to step S120, where the logic unit 18 is executed in the same manner as step S108.
2, the normal / abnormal judgment is made. If it is determined in step S120 that it is normal, a normal alarm output is performed (step S122). Step S12
If it is determined to be abnormal at 0, for example, if there is no alarm in FIG. 3 as well, a failure determination is made using another function (step S124). As described above, according to the present embodiment, backup control of a dual system that can be backed up can be easily performed only by using a train detection sensor such as an ATS ground carrier that does not have a failure detection function. As a result, it is possible to improve the security at the level crossing. Further, according to the present embodiment, as in the related art, even if one of the dual systems is abnormal, the entire railroad crossing is maintained with an alarm, or the fault detection theory is based on a continuous alarm by detecting an improper fall or a missed swing. Instead, the path in which the abnormality has occurred can be separated, and the alarm processing can be continued using the normal path, so that the operation rate of the electronic level crossing control device can be further improved. In the present embodiment,
ATS without a failure detection function on the backup path
However, the present invention is not limited to this. For example, a wheel detector, a short orbit circuit, or the like can be used.

[0008]

As described above, according to the present invention,
Control means for controlling a level crossing safety device such as an alarm or a breaker based on an input signal from a level crossing controller for detecting passage of a train and an input signal from an ATS or the like for backing up the level crossing controller. The discrepancy judging means of the control means judges whether or not the result of the alarm processing of the normal path based on the input signal of the railroad crossing controller and the result of the alarm processing of the backup path based on the input signal such as ATS are inconsistent. If it is determined, the abnormality determination means determines which of the routes has an abnormality in the alarm processing, and the path on the side determined to have the abnormality is separated by the separating means. As a result, it is possible to control the dual system using a train detection sensor such as an ATS ground sensor that does not have a failure detection function, and it is possible to improve security and improve the operation rate. Can be.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a schematic configuration of an electronic level crossing control device according to an embodiment.

FIG. 2 is a diagram showing two paths in the simplified configuration diagram of FIG. 1;

FIG. 3 is a diagram showing a combination in a case where a mismatch is made by the controller in FIG. 2 and one of the alarm processes is determined to be abnormal;

FIG. 4 is a flowchart illustrating the operation of the electronic level crossing control device according to the present embodiment.

[Description of Signs] 10 electronic level crossing control device, 12 start control, 14 end control, 16 ground control, 18 controller, 20 level crossing security equipment, 30 lines, 32 level crossing, 34 train, 180 input circuit, 182 Logic section, 184 mismatch judgment logic section, 186 output circuit.

Claims (1)

[Claims] 1. An alarm device or a circuit breaker based on an input signal from a railroad crossing controller for detecting the passage of a train and an input signal from an ATS or the like for backing up the railroad crossing controller. An electronic level crossing control device having control means for controlling a level crossing safety device, wherein the control means includes an alarm process for a normal route based on an input signal of the level crossing controller, and a backup route based on an input signal such as the ATS. A mismatch determining means for determining whether or not the result of the alarm processing is not consistent; and if the result of the alarm processing of the normal path and the backup path is determined to be inconsistent by the mismatch determining means, there is an abnormality in the alarm processing of any of the paths. Abnormality determination means for determining whether or not there is an abnormality, and disconnection means for separating the path on the side determined to be abnormal by the abnormality determination means. Child crossing control device.