JP6448931B2 - Collision prevention system - Google Patents

Description

  The present invention relates to a collision prevention system and a collision prevention method for a maintenance vehicle used for maintenance work of railway facilities.

  In maintenance work on railroad tracks, track-rails that can travel on ordinary roads and have rail-tracking equipment that can travel on the railroad track, or tracks that can travel on the railroad track Maintenance vehicles (hereinafter referred to as maintenance vehicles) such as motor vehicles and multiple tie tampers are used.

  When performing maintenance work on the track using such a maintenance vehicle, the track is operated by operating a track short circuit mounted on the maintenance vehicle, so-called short-circuit running to short-circuit the track circuit. By blocking the signal current to the relay and detecting the current status of the maintenance vehicle, and making the traffic light stop (red signal), the other trains are prohibited from proceeding to the blocked section. Prevents collisions with trains.

  However, if there is a maintenance vehicle in a short circuit near the railroad crossing, the railroad crossing controller will be shorted, the railroad crossing alarm will continue to sound, and the railroad crossing breaker will remain off. Since it becomes the traffic obstacle of the general road which crosses a level crossing, a maintenance vehicle cannot carry out a short circuit run in such a section.

  In order to avoid such a problem, only the track circuit is short-circuited without short-circuiting the level crossing controller by providing a track short circuit having a filter function for passing only the frequency component of the signal current used in the track circuit. Thus, a collision between the maintenance vehicle and the train can be prevented (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 10-194124

However, when performing maintenance work with a maintenance vehicle equipped with a track short circuit that does not have the filter function described above, or a track-and-rail vehicle that cannot structurally short-circuit the track circuit, the track signal is short-circuited and the traffic light is stopped. Can not do it. Therefore, in general, in railway companies, a train route control system based on a diagram (hereinafter referred to as a train route control system) and a system for planning and managing work using maintenance vehicles (hereinafter referred to as a maintenance work management system). It is necessary to set a maintenance work section (hereinafter referred to as a troubled section) by an operation management system that integrates and control measures such as preventing traffic from entering the troubled section.
However, if a railroad vehicle is placed outside the set trouble section or the maintenance vehicle escapes outside the trouble section due to an operator error, forgetfulness, misunderstanding, etc., the maintenance vehicle and train There was a problem that it was not possible to prevent the collision.

  The problem of the present invention is that maintenance can prevent collision between the maintenance vehicle and the train even when the railroad vehicle is placed outside the set trouble section or when the maintenance vehicle escapes outside the trouble section. An object of the present invention is to provide a collision prevention system and a collision prevention method for a vehicle.

In order to achieve the above object, the present invention provides:
In a maintenance vehicle collision prevention system used for maintenance work on railway facilities,
A server for storing maintenance work information for performing the maintenance work generated based on the trouble track circuit of the maintenance work plan set in the operation management system integrating train route control and maintenance work management;
The maintenance vehicle is installed on the maintenance vehicle, acquires a position of the maintenance vehicle based on a positioning result of the positioning means, obtains a movable range of the maintenance vehicle based on the maintenance work information acquired from the server, and An in-vehicle device that outputs an alarm when it is determined that the standing line position is outside the movable range; and
Equipped with a,
The in-vehicle device is based on the maintenance work information including at least the line name of the trouble section, the line name, the start kilometer distance, and the end kilometer information, and when there are a plurality of trouble sections, the adjacent relationship of the track circuits between the trouble sections. extracts is obtained by the so that obtains the moving range.

  When the in-vehicle device installed in the maintenance vehicle determines that the current position of the maintenance vehicle acquired based on the positioning result of the positioning means is outside the movable range determined from the maintenance work information acquired from the server , It is possible to recognize the line outside the troubled section where the maintenance vehicle is set and the escape of the maintenance vehicle outside the troubled section. Even when the vehicle runs away from the obstacle section, it is possible to prevent a collision between the maintenance vehicle and the train.

Preferably, the in-vehicle device acquires the on-line position of the maintenance vehicle based on latitude / longitude information measured by GPS and information indicating a relationship between the kilometer and the latitude / longitude.
A device for determining the position of the maintenance vehicle separately in the track by measuring the position (latitude / longitude) of the maintenance vehicle by GPS and acquiring the position of the maintenance vehicle based on information indicating the relationship between the kilometer and the latitude / longitude is provided. There is no need, and the on-line position of the maintenance vehicle can be acquired by the in-vehicle device alone.

Preferably, the in-vehicle device is configured to output an approach warning when the on-line position of the maintenance vehicle approaches the boundary of the movable range.
By outputting an approach warning when the current position of the maintenance vehicle approaches the boundary of the movable range, it is possible to grasp the possibility of the maintenance vehicle going out of the troubled section, so take measures such as stopping the maintenance vehicle. It can be taken and the escape of the maintenance vehicle outside the troubled section can be prevented.

Preferably, the in-vehicle device is configured to operate a track short circuit installed in the maintenance vehicle when the alarm is output to short circuit the track circuit.
By stopping the track circuit by operating the track short circuit installed in the maintenance vehicle when the in-vehicle device outputs an alarm, the traffic signal can be stopped and the train can be prevented from proceeding to the blockage section. The collision between the maintenance vehicle and the train can be prevented.

Preferably, the in-vehicle device causes the track circuit to be short-circuited by operating the track short circuit until the runaway distance reaches a predetermined distance when the existing track position of the maintenance vehicle runs out of the movable range. It is something that is not allowed to occur.
Even if the in-vehicle device escapes out of the movable range of the maintenance vehicle, the maintenance vehicle by the positioning means is operated by operating the track short circuit until the runaway distance reaches a predetermined distance so as not to short circuit the track circuit. It is possible to prevent an alarm from being output before the runaway due to an error in obtaining the current position of the track, so by appropriately setting the value for the predetermined distance, interruption of maintenance work due to a false alarm or the operation of other trains It can suppress becoming an obstacle.

Preferably, the in-vehicle device is configured to display the standing line position on a display means.
By displaying the standing line position on the display means of the in-vehicle device, the current standing position of the maintenance vehicle can be grasped and the possibility of the escape of the maintenance vehicle outside the troubled section can be grasped, so measures such as stopping the maintenance vehicle This can prevent the maintenance vehicle from running out of the troubled section.

Preferably, the in-vehicle device acquires the maintenance work information including start information or release information of a trouble section.
Since the in-vehicle device can acquire the latest information by acquiring the maintenance work information including the start information or the cancellation information of the trouble section, the movable range can be updated to the latest information, and the maintenance vehicle It is possible to recognize a line outside of the troubled section in which is set and a runaway of the maintenance vehicle outside the troubled section.

In addition, other inventions of the present application are:
A method for preventing collision of maintenance vehicles used for maintenance work of railway equipment,
Obtaining the on-line position of the maintenance vehicle based on the positioning result of the positioning means of the in-vehicle device installed in the maintenance vehicle;
Obtaining maintenance work information for performing the maintenance work from a server, and determining a movable range of the maintenance vehicle based on the maintenance work information;
Outputting a warning when it is determined that the on-line position of the maintenance vehicle is outside the movable range;
Is included.

  Based on the positioning result of the positioning means of the in-vehicle device installed in the maintenance vehicle, the current position of the maintenance vehicle is acquired, and the maintenance vehicle information is stored based on the maintenance operation information acquired from the server storing the maintenance operation information for performing the maintenance operation. Obtaining the movable range and outputting a warning when it is determined that the current position of the maintenance vehicle is outside the movable range, it is possible to place the maintenance vehicle outside the trouble zone where the maintenance vehicle is set or Since it is possible to recognize runaway to the outside of the section, it is possible to take measures to avoid collisions with the maintenance vehicle, and even if the maintenance vehicle runs away from the troubled section, it can prevent collision between the maintenance vehicle and the train. it can.

  According to the present invention, in the collision prevention system for a maintenance vehicle used for maintenance work of railway equipment, the above-described problem is generated based on the trouble track circuit of the maintenance work plan set in the operation management system integrated with train route control and maintenance work management. A server that stores maintenance work information for performing maintenance work and a maintenance vehicle installed on the maintenance vehicle, acquires the current position of the maintenance vehicle based on the positioning result of the positioning means, and moves the maintenance vehicle based on the maintenance work information acquired from the server By determining the possible range and providing an in-vehicle device that outputs an alarm when it is determined that the position of the maintenance vehicle is outside the movable range, the line is placed outside the trouble section where the maintenance vehicle is set, Because it is possible to recognize the escape of the maintenance vehicle outside the troubled section, it is possible to take measures to avoid collision with the maintenance vehicle, and when the maintenance vehicle escapes outside the troubled section. Also, it is possible to prevent a collision with the maintenance vehicle and a train.

It is a schematic block diagram which shows an example of a structure of the collision prevention system of the maintenance vehicle which concerns on this Embodiment. It is a block diagram which shows an example of a structure of the vehicle-mounted apparatus of the collision prevention system of the maintenance vehicle which concerns on this Embodiment. It is a flowchart which shows an example of operation | movement of the control means of a vehicle-mounted apparatus. It is explanatory drawing which shows an example of railroad GIS information. It is explanatory drawing which shows an example of a display of a standing line position. It is explanatory drawing which shows an example of maintenance work information. It is explanatory drawing which shows an example of the display of a movable range. It is a flowchart which shows an example of other operation | movement of the control means of a vehicle-mounted apparatus. It is explanatory drawing which shows an example of driving | running | working area classification information.

(Embodiment)
[1. Description of configuration]
Hereinafter, a maintenance vehicle collision prevention system and a collision prevention method according to an embodiment of the present invention will be described in detail with reference to the drawings. However, the scope of the invention is not limited to the illustrated examples.

A configuration of a collision prevention system for a maintenance vehicle according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a schematic configuration diagram showing a configuration of a collision prevention system 100 for a maintenance vehicle.
A collision prevention system 100 for a maintenance vehicle shown in FIG. 1 includes a server 1 having a maintenance work information database DB11 storing maintenance work information and a travel section type information database DB12 storing travel section type information, and a track RL. It is comprised by the vehicle-mounted apparatus 2 which is installed in maintenance vehicles CA, such as a running railroad vehicle and a maintenance vehicle, and is connected with the server 1 by the network NT.

  The server 1 preliminarily stores information on the trouble track circuit of the maintenance work plan set in the operation management system integrating train route control and maintenance work management by online work or offline work, and the start and end kilometers of each track circuit. For example, maintenance work consisting of information on at least the line name, track name, start kilometer, and end kilometer in the troubled section, which is added to the trouble track circuit of the maintenance work plan. Information is created and stored in the maintenance work information database DB11. In addition, the travel section type information related to the travel section type stored in the operation management system is taken in and stored in the travel section type information database DB12.

The in-vehicle device 2 is installed in the maintenance vehicle CA, acquires the existing position of the maintenance vehicle CA based on the positioning result of the positioning means, acquires the maintenance work information from the server 1, and is movable based on the maintenance work information Ask for. Then, the presence line position and the movable range are collated, and if it is determined that the maintenance vehicle is outside the movable range, a warning regarding erroneous placement or runaway is output by display or voice.
In addition, when the maintenance vehicle CA is equipped with the track short circuit TS, the in-vehicle device 2 commands the track short circuit TS to be short-circuited together with the alarm output.

  Alternatively, the in-vehicle device 2 is installed in the maintenance vehicle (maintenance vehicle) CA, acquires the existing line position of the maintenance vehicle (maintenance vehicle) CA based on the positioning result of the positioning means, and travel section type information from the server 1. Is obtained, and the operation state of the track short-circuit TS installed in the maintenance vehicle (maintenance vehicle) CA is switched based on the traveling section type information at the current position of the maintenance vehicle (maintenance vehicle) CA, or the short-circuit traveling, or Run isolated.

  Here, FIG. 2 represents the function of the in-vehicle device 2 as a block diagram. As shown in FIG. 2, the in-vehicle device 2 includes a control unit 21, a communication unit 22, a positioning unit 23, a storage unit 24, a display unit 25, and a command unit 26.

  The control means 21 centrally controls the operation of the in-vehicle device 2. Specifically, the control unit 21 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like, and a ROM and a storage unit 24 developed in a work area of the RAM. Each means is integratedly controlled by the cooperation of the program data stored in the CPU and the CPU.

  The communication means 22 communicates with the server 1 via the network NT, receives various information such as maintenance work information, and inputs it to the control means 21. Specifically, the communication unit 22 is a wireless network communication device such as a wireless local area network (LAN) or a portable communication device.

Specifically, the positioning means 23 is composed of a GPS (Global Positioning System) antenna and a GPS receiver. The GPS receiver receives signals from several GPS satellites in the sky by the GPS antenna, and the GPS receiver has its own. The current position is measured, and longitude / latitude information as a positioning result is input to the control means 21.
Further, as the positioning means 23, GPS positioning is performed at a base station whose latitude and longitude are known in advance, an error from the actual latitude and longitude is obtained, and GPS positioning data at the position to be measured is used using the error. D-GPS (Differential GPS) in which positioning accuracy is improved by correcting the error may be used.

  The storage unit 24 stores data such as program data and various setting data in a readable / writable manner from the control unit 21. For example, the storage unit 24 is an HDD (Hard Disk Drive), a semiconductor memory, or the like, and appropriately stores various information such as trouble section information received from the server in addition to program data. The storage unit 24 also stores railway GIS (Geographic Information System) information (line names, track names, information indicating the relationship between kilometers and latitudes and longitudes, hereinafter referred to as railway GIS information).

  The display unit 25 displays information and an image based on the display control signal output from the control unit 21 on the display screen. For example, the display unit 25 may be an LCD (Liquid Crystal Display), an FPD (Flat Panel Display) using an organic EL (Electro Luminescence) element, or the like. Further, it may be a segment display type LED (Light Emitting Diode) for simply displaying the position of the line as a numerical value.

  The command means 26 has a command output connected to the track short circuit TS provided in the maintenance vehicle CA, and commands to switch the operation state (insulation or short circuit) of the track short circuit TS based on the control from the control means 21. Output. Then, the track short circuit TS equipped in the maintenance vehicle CA shorts the track circuit or insulates the track circuit based on the command. However, when the maintenance vehicle CA is a track-and-rail vehicle, the track short circuit TS is not provided, so that the function of the command unit 26 is stopped by the control of the control unit 21.

[2. Explanation of misplaced and runaway operation]
Here, a specific operation of the collision prevention system 100 according to the embodiment of the present invention will be described in detail with reference to FIGS. 3, 4, 5, 6, and 7.
FIG. 3 is a flowchart for explaining the operation of the control means 21 of the in-vehicle device 2 during erroneous mounting or runaway.

As shown in the flowchart of FIG. 3, the control unit 21 of the in-vehicle device 2 includes the latitude / longitude information obtained by the positioning unit 23, for example, obtained by GPS, and the railroad GIS information stored in the storage unit 24. Based on the information, the on-line position of the maintenance vehicle CA (information on the kilometer distance) is acquired and the on-line position is displayed on the display means 25 (step S31).
For example, FIG. 4 shows an example of railroad GIS information stored in the storage unit 24. In the railroad GIS information, latitude / longitude information is associated with a line name, a track name, a kilometer, and the like. Information.
For this reason, the control means 21 of the vehicle-mounted device 2 refers to the railway GIS information based on the latitude / longitude information obtained by the positioning means 23, so that the maintenance line CA is located, such as the line name, the line name, and the kilometer distance. The position can be acquired.
Further, for example, as shown in FIG. 5, the maintenance vehicle icon CA51 is displayed on the wiring diagram displayed on the display unit 25 based on the existing line position of the maintenance vehicle CA, and the maintenance vehicle icon CA51 is displayed at the existing line position of the maintenance vehicle CA. The operator can be made aware of the current line status. In addition, information such as the name of the line on which the maintenance vehicle CA, which is the existing line position, is on the line, the name of the line, and about a kilometer may be displayed.
Thus, by displaying the standing line position on the display means 25 of the in-vehicle device 2, the current standing line position of the maintenance vehicle CA can be grasped, and the possibility of the escape of the maintenance vehicle CA outside the trouble section can be grasped. Measures such as stopping the maintenance vehicle CA can be taken, and the escape of the maintenance vehicle CA outside the troubled section can be prevented.

Further, the control means 21 of the in-vehicle device 2 extracts the adjacent relationship of the track circuit for each trouble section based on the maintenance work information acquired from the server 1 via the communication means 22 and obtains the movable range (step S32). .
For example, FIG. 6 shows an example of maintenance work information acquired from the server 1, such as work numbers for trouble sections, troubles, line names, station names / between station names, track names, start kilometers and end kilometers. Information. In addition, the maintenance work information includes start information or cancellation information of trouble sections.
For this reason, the control means 21 of the vehicle-mounted device 2 matches the line name, the track name, the start kilometer distance, and the end kilometer distance of the maintenance work information, thereby setting the adjacent relationship for each set trouble section and the movement of the maintenance vehicle. The possible range can be determined.
For example, as shown in FIG. 7, “Baffle 01” and “Baffle 02” in the maintenance work information in FIG. 6 are adjacent to each other at the middle point of the branch line (“2k250” and “1k250”). “01” is the distance SE81 from “2k100” to “2k900” about the kilometer on the X-ray main line. It is calculated as a movable range.

  Then, the control means 21 of the in-vehicle device 2 collates the existing line position with the movable range (step S33), and whether or not the existing line position of the maintenance vehicle CA in which the in-vehicle device 2 is installed is outside the movable range. Is determined (step S34).

If the control means 21 of the in-vehicle device 2 determines that the position of the maintenance vehicle CA in which the in-vehicle device 2 is installed is not outside the movable range (step S34: No), the process returns to step S31, and the in-vehicle device 2 When it is determined that the on-line position of the maintenance vehicle CA in which is installed is outside the movable range (step S34: Yes), an alarm is output (step S35).
For example, the maintenance vehicle CA is notified to the maintenance worker by sounding a buzzer (alarm sound) and displaying an alarm screen on the display means 25, or by issuing an alarm indicating a runaway or erroneous line by voice. Recognize that the vehicle has run out of the movable range or has been lined outside the movable range, and necessary collision avoidance measures for the maintenance vehicle CA (for example, removal of the misplaced railroad vehicle, movable range) Evacuation inside, short circuit of the track circuit with a track short circuit that is carried separately).

  Further, the control means 21 of the in-vehicle device 2 determines whether or not the maintenance vehicle CA is equipped with the track short circuit TS (step S36). If the control means 21 of the in-vehicle device 2 determines that the maintenance vehicle CA in which the in-vehicle device 2 is installed is equipped with the track short circuit TS (step S36: Yes), the track circuit is configured by the track short circuit TS. By short-circuiting (step S37), the traffic signal is set to stop display, thereby prohibiting other trains from proceeding to the blockage section and preventing a collision between the maintenance vehicle and the train. Further, when the control means 21 of the in-vehicle device 2 determines that the maintenance vehicle CA in which the in-vehicle device 2 is installed is not equipped with the track short circuit TS (step S36: No), the process proceeds to step S38.

Finally, the control means 21 of the in-vehicle device 2 determines whether or not the maintenance work has been completed (step S38). If it is determined that the maintenance work has not been completed (step S38: No), step S31 is performed. Return to.
For this reason, in steps S38 and S34, returning to step S31 causes the operations in steps S31 to S33 to be repeated at a constant cycle. The line can be determined.

  As described above, a server for storing maintenance work information for performing the maintenance work generated based on the trouble track circuit of the maintenance work plan set in the operation management system integrating train route control and maintenance work management, and maintenance Installed in the vehicle, obtains the current position of the maintenance vehicle based on the positioning result of the positioning means, obtains the movable range of the maintenance vehicle based on the maintenance work information obtained from the server, and the maintenance vehicle's present position is out of the movable range If the maintenance vehicle is equipped with an in-vehicle device that outputs an alarm when it is determined that the maintenance vehicle is installed, the maintenance vehicle can recognize a line outside the troubled section where the maintenance vehicle is set, and the escape of the maintenance vehicle outside the troubled section. Thus, even when the maintenance vehicle runs away from the troubled section, it is possible to prevent the maintenance vehicle and the train from colliding with each other.

[3. Explanation of operation of automatic switching of track short circuit]
Here, the automatic switching operation of the track short circuit of the collision prevention system 100 according to the embodiment of the present invention will be described in detail with reference to FIGS. 8 and 9. However, [2. The same explanation as the explanation of the operation at the time of wrong placement or runaway] will be omitted as appropriate.
FIG. 8 is a flowchart for explaining the automatic switching operation of the operation state of the track short circuit TS of the control means 21 of the in-vehicle device 2. In FIG. 8, the maintenance vehicle CA will be described assuming a maintenance vehicle equipped with a track short circuit TS having a filter function that allows only the frequency component of the signal current used in the track circuit to pass.

  As shown in the flowchart of FIG. 8, the control means 21 of the in-vehicle device 2 includes the latitude / longitude information obtained by the positioning means 23, for example, obtained by GPS, and the railroad GIS information stored in the storage means 24. The current line position (information about kilometer) is acquired based on the information, and the current line position is displayed on the display means 25 (step S81).

Moreover, the control means 21 of the vehicle-mounted device 2 acquires travel section type information from the server 1 via the communication means 22 (step S82).
For example, FIG. 9 shows an example of the travel section type information acquired from the server 1. Line name, station name / between stations, track name, start kilometer distance, end kilometer distance, travel section type (insulated travel, short circuit) This is information such as travel, short circuit travel (using filter function)).
For this reason, the control means 21 of the vehicle-mounted device 2 refers to the travel section type information acquired from the server 1 based on the existing line position, so that the travel section type information of the section where the maintenance vehicle (maintenance vehicle) CA is present. (Insulated traveling, short-circuit traveling, short-circuit traveling (using filter function)) can be acquired.

  Then, the control means 21 of the in-vehicle device 2 collates the existing line position with the travel section type information (step S83), and the existing line position of the maintenance vehicle (maintenance vehicle) CA in which the in-vehicle device 2 is installed is the insulated travel section. It is determined whether or not there is (step S84).

If the control means 21 of the in-vehicle device 2 determines that the current position of the maintenance vehicle (maintenance vehicle) CA in which the in-vehicle device 2 is installed is an insulated travel section (step S84: Yes), the track short circuit TS Is stopped and the insulation state is established (step S85).
On the other hand, when the control means 21 of the in-vehicle device 2 determines that the current position of the maintenance vehicle (maintenance vehicle) CA in which the in-vehicle device 2 is installed is not an insulated travel section (step S84: No), the in-vehicle device 2 Whether or not the filter function is to be used is determined at the position where the maintenance vehicle (maintenance vehicle) CA is installed (step 86).

  If the control means 21 of the in-vehicle device 2 determines that the current position of the maintenance vehicle (maintenance vehicle) CA in which the in-vehicle device 2 is installed is a section where the filter function is not used (step S86: No), the track When the short-circuiting device TS is operated to short-circuit the track circuit (step S87), and it is determined that the on-line position of the maintenance vehicle (maintenance vehicle) CA on which the in-vehicle device 2 is installed is a section in which the filter function is used (step) S86: Yes), the track function is activated by operating the track short circuit TS with the filter function enabled (step S88).

Finally, the control means 21 of the in-vehicle device 2 determines whether or not the maintenance work has been completed (step S89). If it is determined that the maintenance work has not been completed (step S89: No), step S81 is performed. Return to.
For this reason, in Step S89, the operation of Steps S81 to S83 is repeated at a constant cycle by returning to Step S81. Therefore, the track short circuit TS can be automatically switched based on the latest travel section type information. it can.

  As described above, the maintenance vehicle (maintenance vehicle) CA installed on the maintenance vehicle (maintenance vehicle) CA and the server that stores the travel section type information of the section for performing the maintenance work and based on the positioning result of the positioning means. Is obtained, the travel section type information is obtained from the server, and the operation state of the track short circuit TS installed in the maintenance vehicle is determined based on the travel section type information at the present position of the maintenance vehicle (maintenance vehicle) CA. By switching to a short-circuit running or an in-vehicle device that performs an insulated running, the track short-circuit TS of the maintenance vehicle (maintenance vehicle) CA is automatically switched based on the latest travel section type information stored on the server. Therefore, even if maintenance work is performed in a section where the insulation traveling section and the short-circuit traveling section are mixed as appropriate, the track short-circuit TS of the maintenance vehicle (maintenance vehicle) CA is automatically switched off. Obtain it can, it is possible to prevent collision between the maintenance vehicle (maintenance vehicles) CA and trains in short travel route.

In the description of the embodiment of the present invention, the in-vehicle device 2 outputs an alarm when it is determined that the on-line position of the maintenance vehicle CA is outside the movable range, but the on-line position of the maintenance vehicle CA is When approaching the boundary of the movable range, an approach warning may be output.
In this case, it is possible to grasp the possibility of the maintenance vehicle CA going out of the troubled section, so that it is possible to take measures such as stopping the maintenance vehicle CA and preventing the maintenance vehicle CA from going out of the troubled section. can do.

Further, in describing the embodiment of the present invention, when the in-vehicle device 2 determines that the position of the maintenance vehicle CA is outside the movable range, an alarm is output and the track short circuit (when equipped) Although the track circuit is short-circuited by operating the maintenance circuit CA, even if the current position of the maintenance vehicle CA escapes out of the movable range, the escape distance is a predetermined distance (for example, the accuracy of railway GIS and GPS positioning). The track short circuit may be operated so as not to short-circuit the track circuit until it reaches 30 m).
In this case, since it is possible to prevent an alarm from being output before the runaway due to an error in obtaining the position of the maintenance vehicle CA by the positioning means, maintenance work due to a false alarm can be performed by appropriately setting a predetermined distance value. It is possible to suppress interruptions to the train and obstacles to the operation of other trains.

The in-vehicle device 2 may acquire maintenance work information including start information or cancellation information of the trouble section from the server 1.
In this case, since the latest information (start or release) can be grasped, the movable range can be updated to the latest information, and the line other than the trouble section where the maintenance vehicle is set, Recognize that the maintenance vehicle is out of trouble.

In the description of the embodiment of the present invention, in particular, in the description regarding FIG. 8 and the like, the track short circuit TS having a filter function for allowing only the frequency component of the signal current used in the track circuit to pass is used as the maintenance vehicle CA. Although the description has been made assuming a maintenance vehicle (maintenance vehicle) equipped, in the case of a maintenance vehicle CA equipped with a track short circuit that does not have a filter function, the control means 21 of the in-vehicle device 2 is used as the in-vehicle device 2. Is determined to be in the section where the filter function is used (step S86: Yes), in step S88, the operation of the track short circuit TS is stopped to be in an insulated state. It is possible to prevent the level crossing controller from being short-circuited.
Of course, when using a track-and-rail vehicle that is a maintenance vehicle that cannot structurally short-circuit the track circuit, the operation of automatic switching of the track short-circuit with respect to FIG.

In the description of the embodiment of the present invention, the control means 21 of the in-vehicle device 2 is installed in the maintenance vehicle (maintenance vehicle) CA based on the travel section type information at the on-line position of the maintenance vehicle (maintenance vehicle) CA. The operating state of the track short-circuiting device TS is switched for short-circuit traveling or insulation traveling, but the traveling section type information at the current position of the maintenance vehicle (maintenance vehicle) CA is changed from the insulating traveling section to the short-circuit traveling section. In this case, the operation state of the track short circuit may not be changed until the travel distance of the short circuit travel section reaches a predetermined distance (for example, set to about 30 m in consideration of the accuracy of railway GIS and GPS positioning).
In this case, it is possible to prevent short-circuit traveling in the insulated traveling section caused by an error in obtaining the position of the maintenance vehicle (maintenance vehicle) CA by the positioning means, and therefore by appropriately setting the value of the predetermined distance It is possible to prevent traffic troubles on general roads due to railroad crossing warnings, etc., and maintenance vehicles (maintenance vehicles) even when maintenance work is performed in a mixed area of insulated travel sections and short-circuit travel sections that are changed as appropriate. ) It is possible to reliably switch the CA track short circuit and to prevent a collision between the maintenance vehicle (maintenance vehicle) CA and the train in the short-circuit traveling section.

In the description of the embodiment of the present invention, the control means 21 of the in-vehicle device 2 is installed in the maintenance vehicle (maintenance vehicle) CA based on the travel section type information at the on-line position of the maintenance vehicle (maintenance vehicle) CA. The operating state of the track short circuit TS is switched to perform short-circuit traveling or isolated travel, but the travel section type information at the current position of the maintenance vehicle (maintenance vehicle) CA is changed from the short-circuit travel section to the insulated travel section. In such a case, when the remaining distance to the insulated traveling section becomes smaller than a predetermined distance (for example, set to about 30 m in consideration of the accuracy of railway GIS and GPS positioning), the operation state of the track short circuit TS is changed. You may make it do.
In this case, it is possible to prevent short-circuit traveling in the insulated traveling section caused by an error in obtaining the position of the maintenance vehicle (maintenance vehicle) CA by the positioning means, and therefore by appropriately setting the value of the predetermined distance It is possible to prevent traffic troubles on general roads due to railroad crossing warnings, etc., and maintenance vehicles (maintenance vehicles) even when maintenance work is performed in a mixed area of insulated travel sections and short-circuit travel sections that are changed as appropriate. ) It is possible to reliably switch the CA track short circuit and to prevent a collision between the maintenance vehicle (maintenance vehicle) CA and the train in the short-circuit traveling section.

  In the description of the embodiment of the present invention, the railway GIS information is stored in the storage unit 24 of the in-vehicle device 2. Of course, the railway GIS information is stored in the server 1 and the network is used as necessary. You may receive via NT.

  Moreover, when troubles, such as a failure, arise in the vehicle-mounted apparatus 2, the operation state of the track short circuit TS installed in the maintenance vehicle (maintenance vehicle) CA is maintained.

  In describing the embodiment of the present invention, as shown in FIG. 9, the travel section type information includes line names, station names / between stations, track names, start kilometers, end kilometers, travel section types (insulated travel). , Short circuit travel, short circuit travel (using filter function)), etc., but at least line name, track name, start kilometer distance, end kilometer distance, travel section type (insulated travel, short circuit travel, short circuit travel) (Filter function use)).

DESCRIPTION OF SYMBOLS 1 Server 2 In-vehicle apparatus 21 Control means 22 Communication means 23 Positioning means 24 Storage means 25 Display means 26 Command means 100 Collision prevention system CA Maintenance vehicle (maintenance vehicle)
TS track short circuit NT network DB11 maintenance work information database DB12 travel section type information database

Claims (5)

In a maintenance vehicle collision prevention system used for maintenance work on railway facilities,
A server for storing maintenance work information for performing the maintenance work generated based on the trouble track circuit of the maintenance work plan set in the operation management system integrating train route control and maintenance work management;
The maintenance vehicle is installed on the maintenance vehicle, acquires a position of the maintenance vehicle based on a positioning result of the positioning means, obtains a movable range of the maintenance vehicle based on the maintenance work information acquired from the server, and An in-vehicle device that outputs an alarm when it is determined that the standing line position is outside the movable range; and
Equipped with a,
The in-vehicle device is based on the maintenance work information including at least the line name of the trouble section, the line name, the start kilometer distance, and the end kilometer information, and when there are a plurality of trouble sections, the adjacent relationship of the track circuits between the trouble sections. extracts, anti-collision system according to claim Rukoto seek the movable range.   2. The collision prevention system according to claim 1, wherein the in-vehicle device acquires the on-line position of the maintenance vehicle based on latitude and longitude information measured by GPS and information indicating a relationship between the kilometer distance and the latitude and longitude. 3. The collision prevention system according to claim 1, wherein the in-vehicle device outputs an approach warning when the on-line position of the maintenance vehicle approaches a boundary of the movable range. The collision prevention system according to any one of claims 1 to 3 , wherein the in-vehicle device displays the standing line position on a display unit. The collision prevention system according to any one of claims 1 to 4 , wherein the in-vehicle device acquires the maintenance work information including start information or release information of a trouble section.

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