JP5466058B2 - Wireless level crossing warning system - Google Patents

Description

  The present invention relates to a railroad crossing warning system for controlling a warning output of a railroad crossing alarm installed at a railroad crossing, and more particularly to a wireless railroad crossing warning system for notifying train information from an onboard device to a railroad crossing warning control device. More particularly, the present invention relates to a wireless level crossing warning system related to a plurality of level crossings provided nearby.

The most common railroad crossing warning device 20 is of a wired type (see, for example, Non-Patent Document 1), and FIG. 3 (a) showing a schematic configuration thereof in a schematic diagram is a comparison explanation with the railroad crossing warning system of the present invention. A useful part is drawn. For simplicity, an example of a single line is shown.
A level crossing alarm 23 is installed at a level crossing 12 (crossing road) crossing the railroad track 11, and at a distance from the level crossing 12, a level crossing controller 21 (train detection device) that detects the train 10 traveling to the level crossing 12. ) Is attached between them, and the train presence information Q (information indicating whether or not the train has entered the detection target portion or the detection target section of the track 11) from the railroad crossing controller 21 between them. Is input, and a railroad crossing warning control device 22 is provided for controlling the warning light of the railroad crossing alarm 23 and the alarm output of the warning sound generator in accordance with the approach and passage of the train 10 to the railroad crossing 12. In many cases, a pair of level crossing alarms 23 are installed separately at both ends of the level crossing road.

  These level crossing control elements 21, level crossing alarm control device 22 and level crossing alarm device 23 are connected by a signal cable to complete a level crossing alarm device 20. However, a crossing device is installed at level crossing 12 to raise and lower the crossing bar. Thus, the railroad crossing warning control device 22 is expanded to a railroad crossing control device that performs lifting / lowering control of the blocking rod in addition to the alarm output. That is, a level crossing control device that performs lifting control of the crossing bar corresponds to a level crossing warning control device if the level crossing warning output control is performed. In the track 11, the position where the alarm should be started when the train 10 approaches the railroad crossing is called a railroad crossing alarm start point position ADC, and the position where the alarm should stop immediately after passing the railroad crossing is the railroad crossing alarm end point position BDC. The position where the monitoring state is to be initialized after that is called the railroad crossing alarm reset point position CDC.

The above is related to the case where the level crossing 12 is separated from other level crossings, but there are cases where there are a plurality of level crossings to be monitored and they are provided close to each other.
Conventionally, when a plurality of level crossings are installed on the track 11, regardless of the separation distance between the two level crossings, one level crossing alarm device 20 is provided for each level crossing, that is, a level crossing controller, a level crossing alarm control device, and a level crossing alarm. And one set was attached. This is the same when both the crossings 12, 13 are very close, for example (see FIG. 3B), for example, the range from the crossing alarm start point position ADC to the crossing alarm reset point position CDC for both crossings 12, 13 This is the same even when the trains partially overlap, so to speak, a so-called railroad crossing warning device 20, 20 side by side has been installed.

Specifically, for the level crossing 12, the level crossing alarm start point position ADC (A), the level crossing alarm end point position BDC (A), and the level crossing alarm reset point position CDC (A) related to the A level crossing 12 are controlled. The child 21 is installed, and the railroad crossing warning control device 22 controls the railroad crossing warning device 23 of the A railroad crossing 12 based on the train presence line information output from them.
For the B crossing 13, there are crossing controllers 24 at the crossing alarm start point position ADC (B), the crossing alarm end point position BDC (B), and the crossing alarm reset point position CDC (B) related to the B crossing 13, respectively. The railroad crossing warning control device 25 is installed and controls the railroad crossing warning device 26 of the B railroad crossing 13 based on the train location information that is output.

  The level crossing controller 24, the level crossing alarm control device 25, and the level crossing alarm device 26 are the same as the level crossing control unit 21, the level crossing alarm control device 22, and the level crossing alarm device 23, respectively, and are connected to each other by a signal cable. Because of the wired system, it is redundantly installed in the set of the crossing controller 21, the crossing warning control device 22, and the crossing warning device 23, except for the inconvenience that the equipment cost is high and the trouble of laying the cable. There are no operational problems. In the illustration of the crossing warning start point position ADC, the crossing warning end point position BDC, and the crossing warning reset point position CDC, (A) is attached to each position related to the A level crossing 12, and each position related to the B crossing 13 is shown. (B) is attached.

On the other hand, a railroad crossing warning device that introduces wireless (for example, see Patent Document 1) and a railroad crossing control system that uses both wireless and wired (for example, see Non-Patent Document 2) are also known.
In these radio train control systems, when radios are installed in trains and ground facilities, and the radios of the train approach to a range where transmission is possible with radios installed in the ground equipment, a communication line is established according to a predetermined transmission procedure. To start information transmission. The level crossing control device on the ground receives radio information from the train and controls the start / end of a level crossing alarm. Furthermore, the railroad crossing control device can perform alarm start / end control of the railroad crossing without a railroad crossing controller and related cables by wirelessly receiving “position and speed” information from the train.

Japanese Patent Laid-Open No. 11-20702

Introduction to Electricity for Railway Engineers Signal Series 8 “Level Crossing Security Device” Japan Railway Electrical Engineering Association October 30, 1997 4th edition issued Takeichi Koichi, “Train Control System by Wireless (ATACS)”, Japan Railway Electrical Engineering Association, April 2006 “Railway and Electrical Technology” Vol. 17, No. 4, pp. 24-27

In such a conventional radio train control system, it has become possible to omit the open circuit, closed circuit type crossing controller, power source, signal cable, etc., which were necessary for the conventional level crossing control by performing control by radio. .
However, in order to implement this, it is necessary to install a control device with a radio at every level crossing, which increases the installation cost of the device. Also, at locations where level crossings are continuous, transmission is performed between one train and each level crossing, so the radio transmission between trains and individual level crossings is significantly congested, and transmission of necessary information is delayed or cannot be transmitted. There was concern.
Therefore, when the level crossing warning system is made wireless, it becomes a problem to devise so that the communication load between the onboard device and each level crossing does not become excessive even if a plurality of level crossings are installed close to each other.

  The wireless railroad crossing warning system of the present invention has been developed to solve such a problem, and is mounted on a train and transmits on-board information including the train position wirelessly. The first railroad crossing alarm installed on the first railroad crossing of the traveling track, and the train position installed on the ground side and receiving the train information wirelessly from the on-board device and included in the train information And a wireless railroad crossing warning control device for determining the approach and passage of the train to the first railroad crossing and controlling the warning output of the first railroad crossing alarm device, and the second railroad crossing of the track. A second railroad crossing alarm device, and a wired railroad crossing alarm control device that is installed on the ground side and wired to the wireless railroad crossing alarm control device via a signal cable to control the alarm output of the second railroad crossing alarm device. Wireless level crossing warning system equipped A is, the wired crossing alarm control unit is adapted to retrieve from the wireless crossing alarm control device the information necessary via the signal cable to the control of the second grade crossing signals.

  In such a wireless level crossing warning system of the present invention, the wireless level crossing warning control device performs wireless communication of the wired level crossing warning control device. For example, the on-board device is a wireless level crossing warning control device. Combined with the wired level crossing warning control device, it can be regarded as a single wireless level crossing warning control device and transmit train information, or the on-board device can send information to the wireless level crossing warning control device and wired level crossing warning control By transmitting the transmission information to the device collectively, the radio transmission between the train and the individual level crossings does not become excessive even at a location where the level crossings are continuous. In addition, since the number of installed radio devices is small, an increase in the installation cost of the apparatus is suppressed.

About Example 1 of this invention, the structure of a radio | wireless crossing warning system is shown, (a) is a schematic diagram, (b) is a detailed block diagram. About Example 2 of this invention, (a), (b) is a block diagram which shows the structure of a radio | wireless crossing warning system. (A) is a schematic diagram of the conventional level crossing warning system concerning a single level crossing, (b) is a schematic diagram of the conventional wireless level crossing warning system concerning two level crossings near.

About the radio | wireless crossing warning system of such this invention, the specific form for implementing this is demonstrated by the following Examples 1-2.
The first embodiment shown in FIG. 1 embodies the above solution, and the second embodiment shown in FIG. 2 is a modification thereof.
In addition, since the same reference numerals are given to the same constituent elements as those in the past in the illustration thereof, and what is described in the background art section is also common to the following embodiments, it is redundant. The description of this will be omitted, and the following description will focus on differences from the prior art.

A specific configuration of the wireless railroad crossing warning control device and the wireless railroad crossing warning system of the present invention will be described with reference to the drawings.
Here, the case of a single wire is also shown, and FIG. 1A is a schematic diagram of a radio level crossing warning system 50, and FIG. 1B is a more detailed block diagram.

  The level crossing alarm starting point position ADC (A), the level crossing alarm end point position BDC (A), the level crossing alarm reset point position CDC (A), the level crossing alarm starting point position ADC (B), and the level crossing alarm starting point position BDC (B ), Railroad crossing alarm reset point position CDC (B) is a virtual one defined by the position data in the on-board database or the ground database, and is no longer the place where the current for train detection actually flows. In FIG. 1 (a), this is indicated by a dotted line.

  The radio level crossing warning system 50 (see FIG. 1) differs from the conventional level crossing warning systems described above in that it is different from the level crossing warning devices 20 and 20 (see FIG. 3B). The onboard device 51 is introduced in place of 21 and 24, and the wireless level crossing warning control device 52 is introduced in place of the railroad crossing warning control device 22.

  The wireless level crossing warning control device 52 (see FIG. 1) is installed on the ground side like the level crossing warning control device 22 and is wired to the level crossing warning device 23. The wired level crossing warning control device 25 is also connected to the signal cable 57. However, the on-board device 51 is mounted on the train 10. The level crossing alarm 23 (first level crossing alarm) installed at the A level crossing 12 (first level crossing) is also the level crossing alarm 26 (second level crossing alarm) set along the B level crossing 13 (second level crossing). However, it may be the same as the conventional product, and a level crossing barrier may be provided in parallel. When a level crossing breaker is provided in parallel with the level crossing alarm 23, the wireless level crossing warning control device 52 is expanded to become a level crossing control device. When a level crossing breaker is provided in parallel with the level crossing alarm 26, the function of the wired level crossing warning control device 25 is expanded to become a level crossing control device.

  Further, the train presence line information Q is transmitted from the wireless level crossing warning control device 52 to the wired type level crossing warning control device 25 via the signal cable 57. Further, it is possible to cause the wireless level crossing warning control device 52 to perform a logical operation capable of obtaining the alarm relay information R (information indicating whether or not to issue an alarm) from the train location information Q. The alarm relay information R is transmitted from the wireless level crossing warning control device 52 to the wired level crossing warning control device 25 via the signal cable 57. The train presence information Q and the alarm relay information R are typical examples of information necessary for controlling the railroad crossing alarm 26.

  The on-board device 51 is formed by connecting a radio to a fail-safe computer, and a program for obtaining the train position (the leading position of the own train) from the axle meter of the destination train 10 and a preset destination train Non-volatile memory holding 10 train lengths (length of own train) and information related to each level crossing, and train information with appropriate data such as train length and train identification number added to train position of own train And a wireless communication program for transmitting wirelessly. As information relating to a level crossing, the positions of the level crossings 12 and 13 in the line section, the level crossing alarm start point position ADC, the level crossing alarm end point position BDC, and the like described in the so-called kilometer indicating the distance from the base point. Has been.

  Furthermore, the on-board device 51 may not specify the destination when transmitting train information if there is no concern about interference or the like. However, in order to improve the reliability of communication, the on-board device 51 may specify the destination when transmitting train information. In the case of specifying, the destination or message is integrated for the wireless level crossing alarm control device 52 and the wired level crossing alarm control device 25 which are wired by the signal cable 57. Specifically, for transmission, a single identification information is adopted for the destination of the wireless level crossing alarm control device 52 and the destination of the wired level crossing alarm control device 25, or both the devices 52 and 25 are used. Even if the transmission destination identification information is different, the messages for both devices are transmitted together. Even if it does so, since most of the transmission information to both apparatuses overlaps, there is no inconvenience that the communication load becomes excessive.

  The wireless level crossing warning control device 52 is also configured by connecting a radio to a fail-safe computer, and when train information is transmitted from the on-board device 51 of the train 10 that has entered the wireless communication range, it tries to receive it. When it can be normally received, it has a wireless communication program that wirelessly returns a reception ACK to that effect. This wireless communication program is configured to wirelessly transmit a crossing alarm start event and a crossing alarm stop event relating to the control of alarm output not only to the crossing alarm 23 but also to the onboard device 51. . The wireless devices of the wireless level crossing warning control device 52 and the on-board device 51 only need to be able to communicate with each other by synchronous communication or asynchronous communication, and may be a wireless device used in the above-described crossing warning device and crossing control system. The cheap version may be used, and other wireless devices may be used.

  The wireless level crossing warning control device 52 has the level crossing warning control program 53 installed in the program memory together with the above-described wireless communication program, and the non-volatile memory for holding data includes level crossing affiliation information 56 relating to the alarm target level crossing. Is set. Here, the alarm level crossing includes not only the A level crossing 12 in which the level crossing alarm 23 that is directly connected to the wireless level crossing alarm control device 52 by wire and is controlled, but also includes a signal cable. Also included is a B crossing 13 in which a level crossing alarm device 26 that is indirectly controlled by a wired connection via the 57-type wired level crossing warning control device 25 and is a control target is provided.

  When there is only one alarm target level crossing, the information on the alarm target level crossing includes the aforementioned level crossing alarm start point position ADC, level crossing alarm end point position BDC, level crossing alarm reset point position CDC, etc. The crossing information 56 includes A crossing information 56a related to the A crossing 12 and B crossing information 56b related to the B crossing 13 included. Hereinafter, when distinguishing them, (A) is added to the information of the A level crossing affiliation information 56a, and the level crossing alarm starting point position ADC (A), the level crossing alarm end point position BDC (A), and the level crossing alarm reset point position CDC. (B) is added to the information of the B level crossing linking information 56b, and the level crossing alarm start point position ADC (B), the level crossing alarm end point position BDC (B), and the level crossing alarm reset point position CDC (B ).

  The level crossing warning control program 53 determines whether or not the head of the train has reached the railroad crossing warning starting point position ADC (A) based on the train position included in the train information received wirelessly before the start of the level crossing warning. In response, the approach of the train 10 to the A level crossing 12 to be alarmed is determined. In addition, after the level crossing alarm is started, that is, after the level crossing alarm control program 53 causes the level crossing alarm 23 to start alarm output, based on the train position and the train length included in the train information received wirelessly, The passage of the train 10 related to the A level crossing 12 to be alarmed is determined according to whether or not the tail has passed the level crossing warning end point position BDC (A). Further, after that, if it is determined that the train 10 has reached the railroad crossing alarm reset point position CDC (A) based on the train position included in the train information received wirelessly, the monitoring state related to the level crossing 12 is initialized. It has become.

  Further, the railroad crossing warning control program 53 determines whether or not the head of the train has reached the railroad crossing warning starting point position ADC (B) based on the train position included in the train information received wirelessly before the start of the crossing warning. Accordingly, the approach of the train 10 to the B crossing 13 to be alarmed is determined. In addition, after the level crossing alarm is started, that is, after the level crossing alarm control program 53 starts the alarm output to the level crossing alarm device 26 via the wired level crossing alarm control device 25, the train position included in the train information received wirelessly. On the basis of the train length and the train length, the passage of the train 10 relating to the B crossing 13 to be alarmed is determined according to whether the tail of the train has passed the railroad crossing alarm end point position BDC (B). Further, after that, if it is determined that the train 10 has reached the railroad crossing alarm reset point position CDC (B) based on the train position included in the train information received wirelessly, the monitoring state related to the B railroad crossing 13 is initialized. It is also.

  Further, the level crossing warning control program 53 directly controls the alarm output of the level crossing alarm 23 according to the determination result related to the A level crossing 12, and determines the determination result related to the B level crossing 13 based on the train location information Q or the alarm relay information R. And is sent to the wired level crossing warning control device 25 via the signal cable 57.

  The use mode and operation of the wireless railroad crossing warning system 50 according to the first embodiment will be described with reference to the drawings. FIG. 1A is an installation state diagram of the wireless railroad crossing warning system 50.

  Assuming that the A level crossing 12 and the B level crossing 13 are installed close to the track 11 on which the train 10 travels, the proximity of both the level crossings 12, 13 to which the present invention can be applied relates to the A level crossing 12. The range from the level crossing alarm starting point position ADC (A) to the level crossing alarm reset point position CDC (A) is also from the level crossing alarm starting point position ADC (B) related to the level crossing 13 to the level crossing alarm reset point position CDC (B). Both of the ranges are within the communicable range between the wireless level crossing warning control device 52 and the on-board device 51. For both such level crossings 12 and 13, a level crossing alarm 23 is installed facing one A level crossing 12, and a wireless level crossing alarm control device 52 is wired to it, and a level crossing alarm facing the other B level crossing 13. The machine 26 is installed, and a wired level crossing alarm control device 25 is connected by wire. Further, the wired level crossing alarm control device 25 and the wireless level crossing alarm control device 52 are wired by a signal cable 57.

  In such a place where the ground equipment is installed, the train 10 equipped with the on-board device 51 travels on the track 11 toward the A crossing 12 that is relatively close from the left to the right, for example. Enters the wireless communicable range of the wireless level crossing warning control device 52, the train position and the train length are transmitted from the onboard device 51 by wireless communication and reach the wireless level crossing warning control device 52. Each time, the approach of the train 10 to the A level crossing 12 and the approach of the train 10 to the B level crossing 13 are determined by the wireless level crossing warning control device 52 based on the train position obtained wirelessly. When the head reaches the railroad crossing alarm starting point position ADC (A), a railroad crossing alarm is started by the railroad crossing alarm 23. In this way, the crossing warning for the A crossing 12 is appropriately started. In addition, when a level crossing breaker is provided in parallel with the level crossing alarm 23, the cutoff bar descends and the A level crossing 12 is closed.

  When the train 10 further travels and reaches the railroad crossing alarm starting point position ADC (B), the train presence line information Q or the alarm relay information R reflecting the fact is wired from the wireless level crossing alarm control device 52 via the signal cable 57. Since it is transmitted to the type crossing warning control device 25 and the start control of alarm output is performed for the level crossing warning device 26 by the wired type level crossing warning control device 25 accordingly, the warning light flashes and alarms also at the level crossing warning device 26. A warning sound is emitted from the sound generator. In this way, the level crossing alarm is appropriately started for the B level crossing 13 as well. In addition, when a level crossing breaker is provided in parallel with the level crossing alarm 26, the crossing bar lowers and the B level crossing 13 is closed.

  Even after the start of the railroad crossing alarm, train information including the train position and the train length is transmitted from the onboard device 51 by radio communication and reaches the wireless level crossing alarm control device 52. Then, after the start of the railroad crossing alarm, each time the train information arrives, the wireless level crossing warning control device 52 determines the position of the tail of the train from the train position and the train length in order to find an appropriate time to stop the railroad crossing alarm. In addition to the calculation, the passage determination of the train 10 relating to the A crossing 12 and the B crossing 13 is performed based on the tail position. Specifically, the determination as to whether the tail of the train has passed the railroad crossing alarm end point position BDC (A) and the determination of whether the tail of the train has passed the railroad crossing alarm end point position BDC (B) are: Done.

  When it is determined that the train 10 has passed the crossing warning end point position BDC (A), the crossing warning is stopped at the crossing warning device 23 under the control of the wireless crossing warning control device 52. When it is found that the train 10 has passed the railroad crossing warning end point position BDC (B), the train presence line information Q or the alarm relay information R reflecting the determination result is sent from the wireless level crossing warning control device 52 to the signal cable 57. Is transmitted to the wired level crossing alarm control device 25, and accordingly, the wired level crossing alarm control device 25 controls the alarm output to be stopped for the level crossing alarm device 26. As the light is turned on, the alarm sound generator becomes quieter. Thus, the level crossing warning is appropriately stopped for both the A level crossing 12 and the B level crossing 13.

Then, after the train 10 passes the railroad crossing alarm reset point position CDC (A) and also passes the railroad crossing alarm reset point position CDC (B), the train position at that time is changed from the onboard device 51 to the wireless railroad crossing alarm control device. 52, the wireless railroad crossing warning control device 52 resets the monitoring state based on the wireless communication with the on-board device 51 of the train 10 that has passed, and the on-board device 51 of the other train 10 communicates wirelessly. Wait for it to enter the possible range.
Thus, in the wireless level crossing warning system 50, even if the A level crossing 12 and the B level crossing 13 to be monitored are installed close to each other, the on-board device 51 and the wireless level crossing warning control device 52 on the ground side The level crossing warning is appropriately output by wireless communication.

  Moreover, a wireless level crossing alarm control device 52 that controls the alarm output of the level crossing alarm 23 installed facing the A level crossing 12 and a wire that controls the alarm output of the level crossing alarm 26 installed facing the B level crossing 13. After the level crossing warning control device 25 is connected with the signal cable 57, the wireless level crossing warning control device 52 directly controls the level crossing warning device 23 that is the original control object, and the adjacent B Since the railroad crossing alarm device 26 related to the railroad crossing 13 is controlled via the signal cable 57 and the wired railroad crossing warning control device 25, wireless transmission between the onboard device 51 and the wired railroad crossing warning control device 25 can be omitted. -Wireless transmission traffic between vehicles will be eased and information transmission delays will be eliminated.

Although not shown in the figure, the wireless level crossing warning control device 52 performs the wireless communication for the wired level crossing warning control device 25 for the notification to the onboard device 51 regarding events such as the start of the level crossing warning and the stop of the level crossing warning. At the same time, if the notification timings of both are close, the notification information of both is collected and transmitted together, so that the load of wireless communication is also related to the notification from the crossing warning control devices 52 and 25 to the onboard device 51. Will not be excessive.
Further, by performing a consistency check between the information on the level crossing alarm start and level crossing alarm stop received by the on-board device 51 and the train position and holding data, traveling on the train 10 side becomes more appropriate.
Further, in this wireless level crossing warning system 50, the level crossing warning control program 53 processes not only the A level crossing 12 but also the B level crossing 13, so that the processing result becomes the train on-line information Q and the alarm relay information R. The data is transmitted from the wireless level crossing warning control device 52 to the wired level crossing warning control device 25 via the signal cable 57 at an appropriate timing not restricted by communication.

  The wireless level crossing alarm system 80 shown in the block diagram of FIG. 2A differs from the system 50 of the first embodiment described above in that the wireless level crossing alarm control device 52 is modified by a program modification. The point which became the control apparatus 81 and the point which replaced with the wired type railroad crossing warning control apparatus 25 and the wired type crossing warning control apparatus 83 which performs the calculation and control similar to the wireless type crossing warning control apparatus 81 are introduced.

  Specifically, in the wireless level crossing warning system 50, the level crossing warning control program 53 and the level crossing affiliation information 56 installed in the wireless level crossing warning control device 52 include the portion 53 (A) + 56a related to the A level crossing 12 and B The section 53 (B) + 56b related to the level crossing 13 is divided into the part 53 (A) + 56a related to the A level crossing 12 but remains in the wireless level crossing warning control device 81, but the part 53 (B ) + 56b is relocated to the wired level crossing warning control device 83. Along with this, a communication information transfer means 82 is installed in the wireless level crossing alarm control device 81, and a wired communication means 84 is installed in the wired type level crossing alarm control device 83.

  In this case, the train information used for the alarm output control of the A level crossing 12 is directly transmitted wirelessly from the onboard device 51 to the wireless level crossing alarm control device 81, and the wireless level crossing alarm control device 81 issues an alarm related to the A level crossing 12. Processing is performed by the output control program portion 53 (A). The train information used for the alarm output control of the B crossing 13 is wirelessly transmitted from the on-board device 51 to the wireless level crossing alarm control device 81, and further via the signal cable 57 by the communication information transfer means 82 and the wired communication means 84. Then, after being transferred from the wireless level crossing warning control device 81 to the wired level crossing warning control device 83, the wired level crossing warning control device 83 is processed by the alarm output control program portion 53 (B) related to the B level crossing 13.

  Therefore, in the wireless level crossing warning system 80, the information acquired by the wired level crossing warning control device 83 from the wireless level crossing warning control device 81 via the signal cable 57 as information necessary for the control of the level crossing alarm 26 is the train described above. It is not train line information Q or alarm relay information R but train information itself sent by the onboard device 51. When the on-board device 51 communicates with both the wireless level crossing warning control device 81 and the wired type crossing warning control device 83, the train information addressed to both the devices 81 and 83 is collected and wirelessly transmitted from the on-board device 51 together. Is transmitted wirelessly to the railroad crossing warning control device 81, and a part addressed to the wired railroad crossing warning control device 83 is extracted from the train information by the communication information transfer means 82, and is sent to the wireline crossing warning control device 83 via the signal cable 57. Therefore, the load of wireless communication does not increase.

  On the other hand, regarding the notification to the onboard device 51 regarding the event such as the start of the level crossing alarm and the stop of the level crossing alarm, what is generated in the wireless level crossing alarm control device 81 is directly transmitted from the wireless level crossing alarm control device 81 to the onboard device 51. What is transmitted wirelessly and is generated by the wired level crossing alarm control device 83 is transmitted from the wired level crossing alarm control device 83 to the wireless level crossing alarm control device 81 via the signal cable 57, and then wirelessly crossed. Although it is wirelessly transferred to the on-board device 51 by the control device 81, in this case also, when the notification timings of both are close, the notification information of both is collected and transmitted together by the integration processing of the communication information transfer means 82. Therefore, an increase in wireless communication load is also avoided with respect to notification from the crossing warning control devices 81 and 83 to the on-board device 51.

  Further, the wireless level crossing warning system 90 shown in the block diagram of FIG. 2B is different from the system 50 of the first embodiment described above in that the number of level crossings adjacent to each other in the track 11 is increased by three. Specifically, in response to the fact that the C level crossing 14 is installed on the right side in addition to the left A level crossing 12 and the intermediate B level crossing 13, the level crossing alarm is approached to the C level crossing 14. From the point that a level crossing alarm device 27 similar to that of the machine 23 is provided, another wireless level crossing alarm control device 52 added to control the alarm output, and the wired level crossing alarm control device 25 The point is that a wired level crossing warning control device 91 is connected to the tip of the signal cable 57 that comes out. In order to distinguish between the wireless level crossing warning control device 52 and the signal cable 57 for the A level crossing 12, the B level crossing 13 or the C level crossing 14 (A), (B), ( Clarify by adding C).

The radio level crossing alarm control device 52 (A) of the A level crossing 12 is the same as the device 52 of the system 50 described above, including that the level crossing alarm 23 is controlled, but the level crossing alarm of the B level crossing 13. Information necessary for the control 26 is not directly transmitted to the wired level crossing alarm control device 25 but is transmitted to the wired level crossing alarm control device 91 via the signal cable 57 (A).
The wireless level crossing warning control device 52 (C) of the C level crossing 14 uses the signal cable 57 (C) to inform the control target of the level crossing alarm 27 and information necessary for controlling the level crossing alarm 26 of the B level crossing 13. It is the same as the device 52 of the system 50 described above, except that it is transmitted to the wired level crossing warning control device 91 via.

  The wired level crossing warning control device 91 is connected to the wireless level crossing warning control device 52 (A) via the signal cable 57 (A), and is connected to the wired level crossing warning control device 25 via the signal cable 57 (B). The signal cable 57 (C) is connected to the wireless level crossing alarm control device 52 (C). For example, the fail-safe relay driver (FS) transmits the alarm relay information R to the wireless level crossing alarm control device 52 (A). Input from the wireless railroad crossing alarm control device 52 (C), logical operations such as logical sum and logical product are performed on both alarm relay information R and R, and the integrated alarm relay information is wired via the signal cable 57 (B). It is transmitted to the type crossing warning control device 25.

  In this case, the left and right level crossings 12 and 14 are respectively compared with a simple expansion mode in which the wireless level crossing warning control device 52 is installed only at the intermediate level crossing and the wired type level crossing warning control device 25 is installed at the left and right level crossings. Since there is a radio in the immediate vicinity of, the reliability of the alarm output of the level crossing alarms 23 and 27 of the left and right level crossings 12 and 14 is extremely high. On the other hand, the left and right railroad crossings 12 and 14 are, for example, one type of railroad crossing with a breaker and are particularly useful in a situation where the traffic volume is large. If the wired level crossing alarm control device 91 integrates both alarm relay information R, R, if it takes a logical product that outputs an alarm only when both conditions are outputting an alarm, the B level crossing 13 The waiting time of the B crossing 13 is increased if a logical sum that outputs an alarm when either one or both of the conditions are being output is increased, while the waiting time is increased and the waiting time is decreased. Increased safety.

  The radio level crossing warning control device and the radio level crossing warning system of the present invention are not limited to the case of the single line shown in the above-described embodiment, but the level crossing where multiple lines are used and where multiple lines run in parallel It can also be applied to railway crossings.

10 ... train, 11 ... track,
12 ... A level crossing (first level crossing), 13 ... B level crossing (second level crossing), 14 ... C level crossing,
20 ... Railroad crossing warning device (crossing warning system),
21 ... Railroad crossing controller (train detection device), 22 ... Railroad crossing warning control device,
23 ... level crossing alarm (first level crossing alarm), 24 ... level crossing controller,
25 ... Wired level crossing alarm control device, 26 ... Level crossing alarm (second level crossing alarm),
50 ... Wireless level crossing warning system,
51: On-board device, 52 ... Wireless crossing warning control device (crossing control device),
53 ... Railroad crossing warning control program, 56 ... Railroad crossing information,
56a ... A railroad crossing information, 56b ... B railroad crossing information, 57 ... Signal cable,
80 ... Wireless level crossing warning system,
81 ... Wireless level crossing warning control device (crossing control device), 82 ... Communication information transfer means,
83 ... Wired level crossing warning control device (crossing control device), 84 ... Wired communication means,
90 ... Wireless level crossing warning system, 91 ... Wired level crossing warning control device (crossing control device)

Claims (1)

An on-board device that is mounted on a train and wirelessly transmits train information including the train position, a first level crossing alarm installed facing the first level crossing of the track on which the train travels, and installed on the ground side And receiving the train information wirelessly from the on-board device, and determining the approach and passage of the train to the first railroad crossing based on the train position included in the train information to alert the first railroad crossing alarm A wireless level crossing alarm control device for controlling output, a second level crossing alarm installed facing the second level crossing of the track, and a radio level crossing alarm control device and signal cable installed on the ground side A wireless level crossing alarm control device connected to a wired line to control an alarm output of the second level crossing alarm device, wherein the wired level crossing alarm control device is connected to the second level crossing alarm device. Information necessary for control The via Buru adapted to retrieve from the wireless crossing alarm control device, the vehicle on the device, the two crossing alarm control when communicating wireless crossing alarm control device and both the wired crossing alarm control device Means for collectively transmitting train information destined for the apparatus to the wireless railroad crossing alarm control device together, the wireless railroad crossing alarm control device from the wired railroad crossing alarm control device to the on-board device A wireless level crossing warning system comprising means for collectively transmitting notification information of both level crossing warning control devices together to the on-board device when acting as a proxy for the vehicle .

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