JP2006327290A - Train detection device and crossing control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make constant the warning time of an alarm of a crossing road which is adjacent to a platform regardless of a train speed at the time of approach to the platform. <P>SOLUTION: The train detection device is provided on the ground side so that it is reverse to the front-end position or the tail-end position of a train at the time when the train comes to a halt in a predetermined stopping position of a platform of a station. The train detection device comprises a detection means and an output means. The detection means detects the halt or the start of the train in the predetermined stopping position on the basis of the detection order of a plurality of train-detection sensors provided at predetermined intervals along the travelling direction of the train. The output means outputs a signal for the timing of the start of crossing warning on the basis of the halt detection or the start detection of the train by the detection means. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a train detection device, and more particularly to a train detection device that detects that a train has stopped at a predetermined stop position of a platform of a station, and is provided on a railroad crossing near the station using the train detection device. The present invention relates to a crossing control device that controls driving of a crossing warning device.

  Conventionally, a train detection device that detects that a train (including a train) has entered the platform of the station is configured to detect when the train enters the home track of the station by the fall of the track relay of the home track. Has been. And if there is a railroad crossing in the vicinity of the station on the traveling direction side of the train, the railroad crossing alarm device such as a breaker or alarm installed on the railroad crossing will enter the home truck. Then, the driving is started after a predetermined time has elapsed.

  In addition, as a crossing control device that drives and controls a crossing warning device provided on a crossing road near the station, after the route construction of the on-site track is performed, the crossing warning device is started to drive and the predetermined time elapses. It has been proposed that the departure signal is displayed as a progress signal in response to the display of the traffic signal at a later time so that the alarm time of the railroad crossing alarm device can be made constant (see Patent Document 1).

  Furthermore, there is also proposed a railroad crossing control device that prevents a departure signal from being displayed for a predetermined time even when a railroad crossing warning is started by a preceding train and the course of a continuing train that is stopped at the platform is configured. (See Patent Document 2). In this proposed apparatus, since a level crossing alarm is not sounded for a predetermined time after the preceding train passes the level crossing road, it is possible to keep the alarm time appropriate.

JP-A-1-212664 JP-A-5-58301

  However, among the above level crossing control devices, the level crossing control device that starts driving the level crossing warning device provided on the level crossing near the platform of the station based on the detection of the entry to the home track is the speed at which the train enters the platform. Is not taken into account, so there is a disadvantage that the time for closing the railroad crossing becomes longer due to the difference in the approach speed of the train.

  For example, if there is a railroad crossing 220 meters ahead of the platform of the station, the time from when the train enters the home track of the station until the train arrives at the railroad crossing, that is, the train becomes a home track. The time from entering the platform and stopping at a predetermined stop position and arriving at the railroad crossing after the predetermined stop time has elapsed is approximately 10 seconds depending on the difference in speed at which the train enters the home. It is actually measured. This means that the driving time of the railroad crossing warning device provided on the railroad crossing is caused by the difference in the approach speed of the train to the platform. The driving time of this level crossing warning device is set according to the train with the fastest approach speed to the platform, so the crossing road is closed for about 10 seconds in the case of a slow approach speed train than the fastest train. There was a drawback of doing.

  Also, in the other prior art described above, there is no mention of the relationship between the train approach speed to the platform and the railroad crossing warning device provided on the railroad crossing, and when the train enters the home at a slow speed The disadvantage that the closing time of a railroad crossing becomes longer has not been solved.

  Accordingly, the present invention has been made to solve the above-described drawbacks, and its object is to provide a train detection device suitable for drive control of a railroad crossing warning device provided on a railroad crossing, and to The object is to provide a railroad crossing control device using a detection device.

In order to achieve the above object, the train detection device according to the present invention is characterized in that the invention according to claim 1 is the first position or the last position of the train when the train stops at a predetermined stop position of the station platform. Sensor means comprising a plurality of train detection sensors provided on the ground side so as to face the position of the train, and provided at predetermined intervals along the traveling direction of the train, and a plurality of train detection sensors It is characterized by comprising determination means for determining whether a train has entered, stopped, started or advanced based on the detection order.
In the train detection device according to claim 2 of the present invention, when there are a plurality of the predetermined stop positions depending on the type of train knitting growth, the sensor means is provided corresponding to each of the plurality of predetermined stop positions. It is characterized by that.
The train detection device according to claim 3 of the present invention is characterized in that the train detection sensor comprises a reflection type sensor.
In order to achieve the above object, the railroad crossing control device according to the present invention is characterized in that the invention according to claim 4 is the first position or the last position of the train when the train stops at a predetermined stop position on the platform of the station. The train at the predetermined stop position is based on the detection order of a plurality of train detection sensors provided on the ground side so as to oppose the position and maintained at a predetermined interval along the traveling direction of the train. It has a detection means for detecting a stop or departure, and an output means for outputting a railroad crossing warning start timing signal based on a train stop detection or departure detection in the detection means.
The railroad crossing control apparatus according to claim 5 of the present invention is provided with prohibiting means for outputting a departure prohibiting signal for prohibiting departure of the train for a predetermined time after the stop of the train is detected by the detecting means. It is said.
A railroad crossing control device according to claim 6 of the present invention is provided with an axle detector for detecting an axle of a train entering the platform of the station, and based on the number of axles detected by the axle detector. Estimating means for estimating the part position or the last position is provided, and detection by the train detection sensor is started by the time when the estimation means estimates that the head position or the last position of the train has arrived at the train detection sensor. If not, the output means outputs a railroad crossing warning start timing signal based on the train approach to the home track of the station.
According to a seventh aspect of the present invention, when there are a plurality of predetermined stop positions depending on the type of train knitting growth, the sensor means is provided corresponding to each of the plurality of predetermined stop positions. It is characterized by that.
In the level crossing control device according to an eighth aspect of the present invention, the output means drives a guide means such as a guidance broadcast for a home instead of outputting the level crossing alarm start timing signal or together with the output of the level crossing alarm start timing signal. It is characterized by outputting a signal.
The railroad crossing control apparatus according to claim 9 of the present invention is characterized in that the train detection sensor is composed of a reflective sensor.

The train detection device according to claim 1 of the present invention is provided on the ground side so as to face the front position or the last position of the train when the train stops at a predetermined stop position of the platform of the station. And the sensor means consisting of a plurality of train detection sensors provided at predetermined intervals along the traveling direction of the train, and the approach, stop, departure of the train based on the detection order of the plurality of train detection sensors, or Because it consists of judgment means for judging the advance, it is possible to reliably detect entry, stop, departure from the stop position or advance of the predetermined train provided in the platform of the station. It can be used as a driving signal for a railroad crossing warning device, a driving signal for home guidance broadcasting, or the like.
In the train detection device according to claim 2 of the present invention, when there are a plurality of predetermined stop positions depending on the type of train knitting growth, the sensor means is provided corresponding to each of the plurality of predetermined stop positions. Even if train knitting growth changes, the train position can be reliably detected.
In the train detection apparatus according to claim 3 of the present invention, the train detection sensor is formed of a reflection type sensor, and therefore, the sensor means can be easily realized by a reflection type sensor using light rays such as infrared rays.
The railroad crossing control device according to claim 4 of the present invention is provided on the ground side so as to face the front position or the rear position of the train when the train stops at a predetermined stop position of the platform of the station, And detecting means for detecting stop or departure of the train at the predetermined stop position based on a detection order of a plurality of train detection sensors provided at predetermined intervals along the traveling direction of the train, and detection thereof Output means for outputting a railroad crossing warning start timing signal based on the train stop detection or departure detection in the means, so that the driving of the railroad crossing warning device provided on the railroad crossing regardless of the speed of the train entering the platform Time can be kept constant.
The railroad crossing control device according to claim 5 of the present invention is provided with the prohibiting means for outputting the departure prohibiting signal for prohibiting the departure of the train for a predetermined time after the stop of the train is detected by the detecting means. Since the departure of the train is prohibited for a predetermined time after the stop is detected, that is, the predetermined time when the train is stopped at the platform, it is ensured that there is a disadvantage that the driving time of the railroad crossing warning device is shortened accidentally and shortened Can be prevented.
The railroad crossing control device according to claim 6 of the present invention is provided with an axle detector for detecting the axle of the train entering the station platform, and based on the number of axles detected by the axle detector. Estimating means for estimating the position or the last position is provided, and detection is not started by the train detection sensor until the estimation means estimates that the leading position or the last position of the train has arrived at the train detection sensor. Since the output means outputs a railroad crossing warning start timing signal based on the train approach to the home track of the station, even if the train is not detected by the train detection sensor, the home track approach is the same as in the past. The railroad crossing warning device is driven by the detection, ensuring safety.
In the railroad crossing control apparatus according to claim 7 of the present invention, when there are a plurality of the predetermined stop positions depending on the type of train knitting growth, the sensor means is provided corresponding to each of the plurality of predetermined stop positions. Therefore, the train position can be reliably detected even if there is a difference between the length of train trains.
In the level crossing control device according to claim 8 of the present invention, the output means is a drive signal for a guide means such as a home guidance broadcast instead of the output of the level crossing alarm start timing signal or together with the output of the level crossing alarm start timing signal. Therefore, it is possible to effectively perform home guidance broadcasting and the like based on the train detection signal.
In the railroad crossing control device according to the ninth aspect of the present invention, the train detection sensor is composed of a reflection type sensor, so that the sensor means can be easily realized by a reflection type sensor using light rays such as infrared rays.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. FIG. 1 is a front view of a platform to which a train detection apparatus according to the present invention is applied as viewed from the traveling direction side of a train A, and is a train detection sensor (hereinafter referred to as “sensor”) constituting the sensor means of the present invention. S is provided on the ceiling H 'of the platform H of the station.

As shown in FIG. 2, the sensor S includes a plurality of (six in the illustrated example) reflective sensors at predetermined intervals (for example, 1 m) along the traveling direction of the train A traveling on the rail R. S _{1 to} S _{6, and} an intermediate position between the reflection sensors S _{1 to} S ₆ , that is, an intermediate position between the reflection sensor S ₃ and the reflection sensor S ₄ is a predetermined stop position of the train H of the home H. (Refer to the chain line in FIG. 2). Note that the black reflective sensors S _{1 to} S ₃ in FIG. 2 represent a state in which the train A is detected (the same applies to FIG. 3 described later). Moreover, the square member provided in the central part between the rails R is a mark M for notifying the driver of the train A of the stop position.

Each of the reflective sensors S _{1 to} S ₆ is formed of a known reflective sensor using infrared rays, although not shown, a light emitting element that irradiates infrared rays and light rays reflected by the object (train A). Each of them is configured to include a light receiving element that receives light. Therefore, as shown in FIG. 1, by setting the direction of the light emitted from the light emitting element to the side of the train A, when the train A exists, the train A is irradiated with the light, and the irradiated light The reflected light is received by the light receiving element, and the presence of the train can be detected.

  In the above-described example, the sensor S is configured as a reflective sensor, but may be configured as a transmissive sensor. In the case of a transmissive sensor, a light emitting element is provided on one side across the rail R, and a light receiving element is provided on the other side. However, as described above, when the sensor S is constituted by a reflection type sensor, it is advantageous because the device only needs to be provided on one side of the rail R.

In Figure 2, 1 is a sensing circuit supplies each driving power to each of the reflective type sensor S ₁ to S _6, amplification processing a signal output from the light receiving element of the reflection type sensor S ₁ to S ₆ And it is comprised so that the presence or absence of reflected light can be detected using a predetermined threshold value, and which light receiving element (shooting type sensor) can be determined. In addition, the detection circuit 1 is configured to be able to determine the entry, stop, departure, or advance of the train by the light reception order (detection order) of the light receiving elements (reflection sensors S _{1 to} S ₆ ).

FIG. 3 shows a case where the stop positions on the platform H are different due to the difference in train knitting growth. That is, in FIG. 3, in the case of an 8-car train a, the position where the mark M ₁ is provided is the stop position, and in the case of a 6-car train a, the position is a predetermined distance behind the mark M _1. mark M ₂ is provided are determined so that the stop position. As described above, when the stop position is different due to the difference in the growth of the vehicle, the sensors S and S ′ are provided corresponding to the respective stop positions. In this example, the number of stop positions due to differences in train knitting growth is two, but when there are three or more, the number of sensors is increased accordingly.

  FIG. 4 shows an example in which the last position of the train A is detected by the sensor S and the train A is detected. In addition, as shown in FIG. 3, even when the stop position of the head part is different due to the difference in train knitting growth, if the rear part position matches, one sensor S that detects the rear part position will cope with it. It is possible.

The detection operation of the train detection apparatus having the above configuration will be described with reference to the detection state diagrams of the reflective sensors S _{1 to} S ₆ in FIG. This detection state diagram shows the relationship between the sensor S and the train A shown in FIG. 2. When the reflective sensor S ₁ enters the detection state, it is determined that the train A has entered the position of the sensor S, and the reflection is detected. When the detection state of the mold sensors S _{1 to} S ₃ is continued, it is determined that the train is stopped (stopped) at the position of the sensor S, and when the number of reflection sensors in the detection state increases, that is, the reflection sensor S. _It is determined that the train A has departed at the time point ₄ starts detection, and that the train A has advanced from the sensor S when it is no longer detected by any of the reflective sensors S _{1 to} S ₆ .

  As described above, the train detection device according to the present invention is whether the train has entered the stop position of the train provided in the platform of the station, whether the train has stopped, whether the train has departed. And, it has the feature that it can detect and judge reliably and easily whether the train has advanced.

  Next, a railroad crossing control apparatus using the above-described train detection apparatus will be described with reference to FIGS. In FIG. 6, reference numeral 10 denotes a controller formed around a CPU configured to include the above-described detection circuit 1. In FIG. 6, TR indicates a home track (home TR) provided corresponding to the platform H of the station among the rails R on which the train A travels. In other words, the information on the track relay of the home track TR (track relay fall, signal on the roof) is input to the controller 10.

  In FIG. 6, X is a railroad crossing, provided near the platform H and on the side where the train a proceeds, and the railroad crossing X includes a railroad crossing alarm device including a railroad crossing alarm device and the like. Y is provided. The railroad crossing warning device Y is configured to be driven by a control circuit (not shown) built in the railroad crossing equipment box Y ′. A control signal corresponding to the railroad crossing warning start timing signal of the present invention is sent from the controller 10 to the railroad crossing equipment box Y ′.

  In FIG. 6, reference numeral 11 denotes a departure restraint indicator lamp, which is provided on the advance side of the home truck TR (the right end side of the home H in the illustrated example), and the ground element 12 provided on the advance side of the home truck TR. Further, an ATS signal for early departure corresponding to the departure prohibition signal of the present invention is transmitted from the controller 10. And it lights up while this ATS signal is transmitted, and it is constituted so that it may be informed to the driver that the departure of train A cannot be performed.

  In FIG. 6, reference numeral 13 denotes an axle detector provided a predetermined distance before the installation position of the sensor S. The axle detector 13 detects the presence or absence of the axle (wheel) of the train A traveling on the rail R, and the detection signal is controlled. It is comprised so that it may input into the device 10. Therefore, the controller 10 is configured to be able to calculate (estimate) the position of the train A (the first position or the last position of the train A) on the platform H based on the input axle detection signal. In the example shown in the figure, the axle detector 13 is provided on the entry side of the home truck TR corresponding to the home H, but this is provided on the entry side rail R, that is, the home H in FIG. You may provide in the rail R located in the left side rather than.

  In addition to the above-described detection signal, the controller 10 is also configured to receive stop time switching information for selecting a stop time at which the train A stops at the home H from a train operation management device (not shown). This stop time switching information is input to the controller 10 so that the stop time of the station is 30 seconds in rush hour, and 20 seconds otherwise. The controller 10 is also configured to receive train selection information from a train operation management device (not shown). In the case of a train through which this train selection information passes without stopping at the platform H, a railroad crossing warning is provided when a railroad crossing controller (not shown) provided on the front side of the home truck TR (the left side in FIG. 6) detects the train. Device Y is configured to initiate an alarm. And when this train selection information stops at the home H, the railroad crossing warning device Y is driven and controlled based on the detection signals of the sensor S, the axle detector 13 and the home track TR as will be described later. Yes.

The control operation will be described below with reference to the time chart of FIG. 7 and the flowchart of FIG. In FIG. 7, V _{1 to} V ₃ represent the speed at which train A enters the home H. In “conventional”, a warning of the railroad crossing warning device Y is started after a predetermined time T _{0 has} elapsed since the train A entered the home truck TR (home H). The train crossing X is continued until advancing from the railroad crossing X is detected, during which time the railroad crossing X is closed.

In FIG. 7, t ₁ , t ₂ , and t ₃ are time required for each train speed until the train enters the home H and stops at a predetermined stop position. As a matter of course, it has the property of becoming shorter if the train speed is faster. Then, a warning of the railroad crossing warning device Y is started after a predetermined adjustment time (t ₄ ) has elapsed since the train A stopped at this predetermined stop position. Train stomach after a predetermined stop time t ₅ stop at the home H, premature prevention signal is canceled departure of the train i is performed, crossing controller element of a crossing road X train Lee not shown that has passed from the starting Until it is detected at (t ₆ ), the alarm of the railroad crossing alarm device Y is continued. Therefore, the alarm time t ₇ of the railroad crossing warning device Y is a constant time of (t ₅ + t ₆ ) regardless of the speed at which the train A enters the home H.

  Next, with reference to the flowcharts of FIGS. 6 and 8, it is assumed that train A is currently traveling toward the platform H of the station (see FIG. 6). Then, when the train A enters a home truck TR (home H) provided in accordance with the home H (step 100: affirmative; hereinafter, “S” is assumed), a track relay (not shown) falls. The fall signal is input to the controller 10 (omitted in the flowchart of FIG. 8).

  When the traveling of train A further proceeds, the axle of train A is detected by the axle detector 13 (Yes in S102), and the detection signal is input to the controller 10. The controller 10 calculates the train head position and the train speed from the input number of axles and the detection timing thereof (S104). The calculated speed of the train A can be used for other train control, but the calculation of the train speed is omitted if unnecessary.

  Since the calculation of the leading position of the train A by the axle detector 13 is performed with high accuracy, it is possible to accurately estimate whether or not the leading position has reached the position of the sensor S. For this reason, if the head position estimated by the axle detector 13 is within the installation range of the sensor S and the sensor S is normal, the entry, stop, departure, and advance of the train by the sensor S are detected normally. (S106 affirmative, S108 affirmative). The controller 10 can perform drive control of the railroad crossing warning device Y based on the train stop signal obtained from the sensor S (S110).

  When the head position estimated by the axle detector 13 is within the installation range of the sensor S but the axle detection by the sensor S is not started (Yes in S106, No in S108), the sensor S Since it is abnormal, in this case, drive control of the railroad crossing warning device is performed in a conventional manner based on the signal that train A entered the home track TR, and the controller 10 indicates that the sensor S is abnormal. A management device (not shown) is notified (S112).

  In the above example, the case where the leading position of the train A is detected by the sensor S has been described. However, the same process is performed when the last portion of the train A is detected by the sensor S. Further, the alarm start of the railroad crossing warning device is based on the time point when the train A stops at a predetermined position of the home H, but may be based on the time point when the train H departs from the home H. Furthermore, although there is one railroad crossing X adjacent to the platform H, when there is a railroad crossing adjacent to the railroad crossing X before the railroad crossing X, the controller 10 makes the railroad crossing road. A crossing warning start timing signal is output. This level crossing alarm start timing signal can be easily generated by starting a timer with a level crossing alarm start timing signal for level crossing X.

It is a front view when the platform to which the train detection device concerning the present invention is applied is seen from the traveling direction side of the train. It is a figure which shows the example of arrangement | positioning of the sensor which comprises a train detection apparatus. It is a figure which shows the example of arrangement | positioning of the sensor made to respond | correspond to the case where a stop position differs with the difference in vehicle volume growth. It is a figure which shows the example which detects the last part position of a train with a sensor, and performs a train detection. It is a detection state figure of a reflection type sensor. It is a figure which shows the structure of a level crossing control apparatus using a train detection apparatus. It is a time chart which shows the relationship between the approach speed of a train, and a warning start. It is a flowchart which shows the control action in a controller.

Explanation of symbols

B Train H Home M Mark R Rail S, S 'Sensor TR Home Track X Railroad Crossing Y' Railroad Crossing Equipment Box 1 Detection Circuit 10 Controller 11 Departure Depression Indicator Light 12 Ground Element 13 Axle Detector

Claims (9)

When the train stops at a predetermined stop position on the platform of the station, it is provided on the ground side so as to face the head position or the last position of the train, and at a predetermined interval along the traveling direction of the train. Sensor means consisting of a plurality of train detection sensors provided to maintain,
A determination means for determining entry, stop, departure or advance of a train based on the detection order of the plurality of train detection sensors,
A train detection device comprising: In the train detection device according to claim 1, when there are a plurality of the predetermined stop positions depending on the type of train knitting growth, the sensor means is provided corresponding to each of the plurality of predetermined stop positions. A train detection device. 3. The train detection device according to claim 1, wherein the train detection sensor is a reflection type sensor. When the train stops at a predetermined stop position on the platform of the station, it is provided on the ground side so as to face the head position or the last position of the train, and at a predetermined interval along the traveling direction of the train. Detecting means for detecting the stop or departure of the train at the predetermined stop position based on the detection order of a plurality of train detection sensors provided to maintain;
Output means for outputting a railroad crossing warning start timing signal based on the train stop detection or departure detection in the detection means,
A railroad crossing control device characterized by comprising: 5. A railroad crossing control device according to claim 4, further comprising a prohibition means for outputting a departure prohibition signal for prohibiting departure of the train for a predetermined time after the stop of the train is detected by the detection means. Control device. The railroad crossing control device according to claim 4 or 5, wherein an axle detector for detecting an axle of a train entering the platform of the station is provided, and a train head portion based on the number of axles detected by the axle detector. Estimating means for estimating the position or the last position is provided, and detection is not started by the train detection sensor until the estimation means estimates that the head position or the last position of the train has arrived at the train detection sensor. The output means outputs a railroad crossing alarm start timing signal based on a train approaching the home track of the station. The crossing control device according to any one of claims 4 to 6, wherein when there are a plurality of the predetermined stop positions depending on the type of knitting growth of the train, the sensor means corresponds to the plurality of predetermined stop positions, respectively. A crossing control device characterized by being provided. 8. The level crossing control apparatus according to claim 4, wherein the output means is a guidance means for guidance broadcast of a home instead of outputting a level crossing alarm start timing signal or together with the output of the level crossing alarm start timing signal. A crossing control device characterized in that it outputs a driving signal. The level crossing control apparatus according to any one of claims 4 to 8, wherein the train detection sensor includes a reflective sensor.

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