JP3519042B2 - Warning method for railway - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railway such as a bullet train.
Between track maintenance vehicles, between track closing devices and maintenance vehicles, etc.
The present invention relates to a railway warning generation method for performing an approach warning. 2. Description of the Related Art Conventionally, there has been an opposition between vehicles for maintenance of railway tracks.
In order to prevent collision accidents, wireless devices
An alarm generator that gives an alarm when radio waves are received
Both are provided. FIG. 17 shows a conventional alarm generation method.
It is a figure explaining a method. [0003] In FIG.
The moving vehicles 1701 and 1702 each have a specific
Transmit wireless communication signals including patterned alarm signals
While receiving wireless communication signals transmitted from other vehicles.
I believe. This transmission and reception communication method is, for example, intermittent transmission method
It is done by. [0004] When a vehicle receives a wireless communication signal from another vehicle.
Entering 1704 within the radio wave range where the
A wireless communication signal from the vehicle is received. This nothing
When a line communication signal is received, an alarm
Output an alarm. [0005] However, the conventional approach police
In the information system, the traveling direction of vehicles, the distance between vehicles, etc.
Regardless of the wireless communication signal from another vehicle (alarm
Signal), an alarm is generated. did
Therefore, even if it is not actually dangerous, the approach warning
Often generated, not accurate approach warning
won. In addition, the vehicle operator may
The source of turning off the approach warning device as annoyance of the approach warning
It was a cause. The present invention has been made to solve such a problem.
Between railway maintenance vehicles, track closing devices
Warning of proximity between the vehicle and maintenance vehicles, etc.
For railways that can be performed without error and reliably
An object of the present invention is to provide a method for generating an alarm. [0007] According to the first aspect of the present invention,
The railway alarm generation method of this
Provided at least one moving vehicle and a transceiver
Communication between at least one track closure device and
In the railway warning generation method that warns of nearness,
Is a sensor that detects the position, speed, and direction of travel of the vehicle
Means and a vehicle database for providing route information of the vehicle.
And each track closing device has its own track closing device.
Position setting means for setting an installation position, and the track closing device
For the track closing device that provides the route information where
A base, and in each vehicle, a detection result of the sensor means is provided.
From the result and the route information in the vehicle database
Set status information and send this self status information to the outside
Information from other vehicles or track closing devices
Each track closing device receives the position setting means.
Route information of the fixed position and the database for the track closing device
Self-state information from
To a vehicle or other track closure
Status information from the vehicle, and at each vehicle and track closing device,
The self status information and the other vehicle status information or other track closed.
Determining an approach warning condition based on the chain device status information;
It is characterized by the following. [0009] According to the railway alarm generation method of the present invention, each
The vehicle / track closing device sets self-state information and
The other vehicle / track closing device
Based on other status information and self status information received from the device
To determine the approach warning condition. In addition, this approach
Items include the braking distance corresponding to the speed of each vehicle,
It is defined based on the information required for suspension. Also, each vehicle
The self-status information at
And a sensor that detects the position, speed, and direction of travel of the vehicle
This self status is set based on the detection result of the means.
Approach warning condition based on the status information and the received other status information
More appropriate determination can be made. In addition, the vehicle
The position is based on the signal from the ground child installed on the track.
Point data on the track detected by the point sensor, speed sensor
Vehicle speed data detected by the
Is calculated based on the data
Can be detected. [0010] Therefore, between the train maintenance vehicles, the track closed.
When there is a risk of collision between the chain device and the maintenance vehicle, etc.
Alerts the operator, and alerts the operator
Waste can be reduced. In addition, the approach warning
It can be performed accurately according to the judgment conditions according to the turning situation
Therefore, safety can be improved. Hereinafter, embodiments of the present invention will be described.
This will be described with reference to the drawings. FIG. 1 is a schematic diagram of a Shinkansen train to which the present invention is applied.
Railroad tracks, maintenance vehicles and tracks moving on the railroad tracks
FIG. 4 schematically shows the situation of the closing device. In addition, ground child
Is a signpost that indicates about a kilometer.
They are arranged for each distance. Each of the maintenance vehicles has a structure as shown in FIG.
Onboard transmission / reception equipment is installed,
A transmission / reception device for closing the track as shown in FIG.
ing. The on-vehicle transmitting / receiving apparatus 200 shown in FIG.
The transceiver 210, the GPS antenna 220, and the radio
Antenna device 240, point sensor 250, speed sensor
260. The GPS receiver 21 of the on-vehicle transceiver 210
1 receives a GPS signal received by the GPS antenna 220
PPS (Pulse Per Seco) generated from GPS signals
nd) When the signal is supplied to the control unit 212 as a reference signal,
In addition, if necessary, other position signals and the like are also transmitted to the control unit 212.
Supply. This PPS signal is obtained every second.
Therefore, if the reference signal needs to be given every 2 seconds, for example,
In this case, the time data obtained simultaneously from the GPS data
Use to get PPS signal every odd or even second
So that The display operation unit 230 has an LED
Lower switch 231, 7-segment LED display 23
2, control with LED display 233 and numeric keypad 234
It exchanges signals with the unit 212. The point sensor 250 is located on the track of the vehicle.
The location is detected based on the signal from the ground post (sign post).
Output to the control unit 212, and the speed sensor 260
The control unit 2 detects a detection pulse accompanying rotation of a vehicle wheel and
12 The commercial radio 214 has an antenna 241,
A radio including an antenna duplexer 242 and a filter 243
From the in-vehicle transceiver 210 via the antenna device
Data to the outside, and with other vehicles outside
Or the data is received from the track closing device and supplied to the control unit 212.
Pay. In addition, a speaker 215 is provided,
Receiving an alarm signal from the aircraft 214 and issuing an alert
You. The control unit 212 of the vehicle-mounted transceiver 210 includes:
Kilometers for each rail line, and for each line up and down
It has a database 213 such as
The status of the vehicle is extracted from the database 213 and used.
It is. In addition, the control unit 212 is provided with the display operation unit 23
0, the position sensor 250, the speed sensor 2
60 and the data from the database 213.
Route, position, speed, etc.
Generate data such as degrees and directions. The control unit 212
Is connected to other external vehicles via the commercial radio 214.
Necessary for time division multiplex communication by transmitting and receiving
Performs necessary communication processing. It should be noted that, from the control unit 212, another vehicle
When the two approach the track closing device, the business radio 21
4 makes the speaker 215 connected to the
Command signal and brake to stop the vehicle.
A command signal is output. The line closing transmission / reception device 300 shown in FIG.
A road closure transceiver 310, a GPS antenna 320,
And a wireless device antenna 341. Track closure
Will separate the specific section of the track to allow maintenance vehicles to enter.
It is for prohibition. Therefore, the place where the
The location, route, etc. are determined for each work
It is set to the transmitting / receiving device for closing. Also, during that work
Since it is fixedly installed, point sensors etc. are provided
Not in. A GPS receiver for the line closing transceiver 310
311 is a GPS signal received by the GPS antenna 320
Receiving the PPS signal generated from the GPS time signal
It is supplied to the control unit 312 as a quasi-signal and
In response, other position signals and the like are also supplied to the control unit 312. Ma
The display operation unit 330 is an up / down switch with an LED.
331, 7 segment LED display 332, LED display
333, a numeric keypad 334, and a control unit 312
Exchanges. The commercial radio 314 is a radio antenna 3
41, the data from the line closing transceiver 310 is transmitted.
Data to the outside, as well as outside vehicles and other lines.
Data is received from the road closing device and supplied to the control unit 312.
You. Further, a speaker 315 is provided, and the business radio 3
In response to the alarm signal from 14, an alert such as an approach alarm is issued. Control section 312 of line closing transceiver 310
Is the line of each railway line,
It has a database 313, such as kilometers,
Operation signal from display operation unit 330 and database 3
13 based on the data from 13
Generates data such as the route and the position that are set. Ma
In addition, the control unit 312 communicates with the outside via the commercial radio 314.
Transmission and reception between some vehicles and other track closing devices
Performs communication processing required for division multiplex communication. The control unit 3
12, when the vehicle approaches, the business radio 314
To make the speaker 315 connected to the
Is output. Along this track, workers are involved in maintenance work.
FIG. 4 shows a portable reception carried by such a worker.
Apparatus 400. This portable receiver 400 is a wireless
Consisting of the antenna 441 and the portable receiver, the transmission function
But not from on-board transceivers or track closure transceivers
Receives transmitted radio waves with a predetermined reception area
It has only the function, for example,
When the transmitted radio wave is received, the
A warning is issued to alert workers.
You. FIG. 5 shows the control unit 2 of the vehicle-mounted transceiver 210.
12 and the control unit 312 of the track closing transceiver 310
Route database in the databases 213 and 313
FIG. In FIG. 5, as a route database
Are route types R (1) to R (N) to R (end);
Ground child numbers 1 to n for each route R (N)
A correspondence table between end and total kilometers is prepared. This place
Kamiko is from the starting point of the track (for example, the platform at Tokyo Station)
It is installed every predetermined distance (usually 1 km)
When passing, the point sensor 250 mounted on the vehicle
Detect the presence of the ground child from the route database
Kilometer and accurate position can be detected.
While the vehicle is between its ground children, the speed sensor 260
And the current position is calculated as shown below.
Put out. P = D (n) + G × (r / R) × m P: current position (about km), D (n): ground child n
About km, G: Gear ratio, r: Wheel circumference R: Speed sensor
Number of pulses per rotation, m: velocity cell after passing n
Sensor pulse number. By the way, due to the configuration of the railway track, for example, a bridge
Above the road or at a branch point on the track
In addition, the ground child is not always arranged every fixed distance (for example, 1 km).
May not be placed, but even in this case
Route data with n to end and a correspondence table of about km
Base accurately detects corrected vehicle position at all times
it can. It is to be noted that when a railway line branches on the way,
FIG. 6 shows an example of the point detection. As shown in FIG.
Assuming that Route B branches off from
As shown in route A data and route B data in FIG.
The distance from the ground child N at Kizen to the next ground child is almost 1
If a, there is no branch (the detected ground child is N + 1), and if
Otherwise, it is determined that the route has branched to Route B. Of course, this
Route data on branching in the database 213
Provided. FIG. 7 shows a vehicle-mounted transmission configured as described above.
A communication slot from a receiving device or a line closing transceiver
Of the wireless communication data transmitted using the packet S (i).
This is an example. As communication data, as shown in the figure,
In addition to system ID, base ID, route ID, vehicle ID,
Location information, speed information, direction information and communication status,
Sent. Note that the communication status is
Communication slot number and the communication slot
Represents the unit number. Next, the alarm for a railway according to the embodiment of the present invention will be described.
About the time division multiplex communication method which is a communication method of the raw method
explain. First, in this time division multiplex communication system,
FIG. 8 shows the configuration of the communication cycle and the communication slot.
You. The communication cycle is for each maintenance vehicle and track closing device.
For the transmitting / receiving apparatus, as shown in FIG.
The time is synchronized in each transmitting / receiving device by the PS PPS signal.
It is started in a timely manner. And each communication cycle period
2 seconds, divided into 18 slots for communication
I do. These 18 communication slots are used for vehicles.
S (1) to S (14) are assigned for the track closing device
Communication slots S (15) to S (18) are allocated. Communication slot allocated for this vehicle
S (1) to S (14) are fixedly assigned to a specific vehicle.
The availability of these communication slots
Flexible so that each vehicle gets an empty slot accordingly.
Used for Shiburu. Meanwhile, allocated for track closing device
Communication slots S (15) to S (18) are closed
Since the chain device will be installed in the closed section, the track will be closed.
Fixed assignment of communication slots when installing equipment
become. Next, the overall communication in the vehicle transmitting / receiving apparatus will be described.
The communication process will be described sequentially. FIG. 9 shows the entire communication.
FIG. 3 is a diagram showing an outline of communication processing, and is the same for each vehicle transmitting / receiving device.
It is done like this. In FIG. 9, when the communication starts, the communication slot
No communication slot has been acquired.
Perform detection (). The detection of this empty slot
Communication status from the transmission / reception devices of all vehicles that can be received
Of all vehicles, and all vehicles are indiscriminate (OR
0) is determined as an empty slot.
You. To illustrate this state, the vehicle n, m, k
If the communication status received from
As a result of the sum, the second communication slot, the seventh communication slot, and the
It is determined that 10 communication slots are empty slots.
You. Communication status received from vehicle n 0011010100001010 Communication status received from vehicle m 10011000100101 Communication status received from vehicle k 10110101001010 Logical OR 1 0 1111 0 11 0 Detecting the empty slot, the communication of the empty
If there is no slot, entry is not allowed. And wait
Transfer to the next communication cycle and re-use the empty communication in the next communication cycle.
Performs slot detection. In this case, an empty communication slot
This process is performed until is detected. Next, by detecting an empty slot, an empty
If there is a slot,
U. In this slot selection process, there are multiple empty slots.
For example, if the communication slot with the lower number is
Acquire as its own communication slot and move on to the next communication process.
You. Here, when all communication slots are empty,
In other words, if there is no data reception from other vehicles,
There is no other vehicle transmitting to the side (radio range)
However, when neighboring vehicles start communication at the same time,
Communication status according to random numbers, taking into account the possibility of
Select a lot and get it. In the communication processing, the acquired communication slot S
The communication process is performed using (i), and as described in FIG.
And communication data as system ID, base ID, route
In addition to ID and vehicle ID, position information, speed information, direction information
The communication slot number that can be received at that time and the self
A communication status indicating the communication slot number transmitted by
Add and send. Thereafter, communication processing is performed for each communication cycle.
Therefore, transmission in the acquired communication slot and other slots
And reception. The state of this communication is represented by the entire time division multiplex communication.
Looking at the situation, as shown in FIG.
I have. That is, each communication using the GPS PPS signal as a reference signal is performed.
Communication cycle is divided into communication slots S (1) to S (n).
Each vehicle uses the acquired communication slot
Transmit and other slots transmit data from other vehicles.
Receiving. This communication process is shown in FIG. 11 as an example.
As described above, the vehicle having acquired the communication slot S (3)
Looking at the PPS signal, which is the reference signal, two communication slots
From the point in time delayed by the time tsel
To S (3) starts. In normal communication that is normally performed, basic
When the communication slot S (3) starts, the communication data
Start sending. However, the transmission method is the communication slot
The communication is delayed by a predetermined time td from the start of S (3).
Configured to allow delayed transmission to start data transmission
Have been. As described above, the communication processing is performed every communication cycle.
The transmission in the acquired communication slot and the other slot.
And time-division multiplexing is performed.
Checks the communication status based on the received data for each communication cycle.
To use the same communication slot as other transceivers.
Detect the race condition that is running. The detection of this competitive condition is based on the
From the data reception result, the
Vehicle communication slot (the slot that transmitted the vehicle data)
G) to check for race conditions.
To detect. For example, the third communication slot S
When data is transmitted using (3), the following
Communication status [10 1 11101101111] added
And send it. And receive from all other vehicles
During communication status that is ORed based on data
If the bit of the third communication slot S (3) is 1,
It is determined that there is no pass, and if the third communication slot S (3)
If the bit is 0, it is determined that a race condition has occurred.
You. The bit of the third communication slot S (3) of the own vehicle is
The reason for determining that the slot is an empty slot is that
Data is corrupted due to a communication error.
It may be broken, but it cannot be distinguished when receiving data.
The communication slot bit of the host vehicle is not significant.
Otherwise, it is determined that a conflict has occurred. By the way, in such a plurality of vehicles simultaneously,
"Competition" using the same communication slot S (i)
For example, if the transmitter / receiver is started simultaneously in multiple vehicles
For example, multiple vehicles in a certain communication area
A race condition may occur when entering from outside the communication area.
Live. One example in which this race condition occurs is shown in FIG.
I have. In FIG. 12, vehicle A is in the first communication slot.
G (S), the vehicle B is in the second communication slot S (2), and the vehicle is
C is the third communication slot (1), and vehicle D is the third communication slot.
A state S (3) indicates the state of transmission. Note that this
In the example, for simplicity, the other communication slots are free.
Lot and each vehicle can communicate only with the next vehicle
It is assumed that you are at a distance. As shown in this figure, the vehicle A transmits the communication
Although the status is [1100], the received communication status
Status is [0100] and the communication status
The communication status received by lot S (1) is 0
Therefore, it is determined that a conflict has occurred. Also a car
Both Cs have a transmitted communication status of [1110].
The received communication status is [0110] and the
The communication slot received by the communication slot S (1) transmitted by the vehicle
Since the status is 0, a conflict has occurred
Is determined. In the case of conflict detection, when there is no conflict
Returns to the communication process. Usually, most of this judgment is
You. Note that when all communication slots are empty,
If no data is received from the vehicle,
There is no other vehicle in the area) or own vehicle in the vicinity
Vehicles transmitting using the same communication slot as both
Is present, that is, only competing vehicles are present
Is. At this time, consider the possibility of the latter race condition.
In consideration of this, a communication slot is set according to a random number for each communication cycle.
Select and acquire and move to the next communication process. If the conflict is detected,
Is detected, arbitration processing is performed. In arbitration processing
FIG. 13 shows specific processing contents. In FIG. 13, when it is determined that there is contention,
Then, a distribution process 1301 using random numbers is performed. This swing
The division is normal transmission 1302, delayed transmission 1303 and transmission
Regulation 1304, communication in case of normal transmission 1302
Transmission of communication data is started at the start of slot S (i).
Start, unconditionally acquire the slot 1305, and communicate
Return to processing 4. In the case of the delayed transmission 1303, as shown in FIG.
That is, it is the predetermined time td from the start of the communication slot S (i).
The transmission of communication data starts after a delay.
The communication carrier from another vehicle during the extended predetermined time td
Monitor the presence / absence 1306, and if there is no communication carrier
Acquires 1305 the slot S (i) and performs the communication processing.
Return to the theory. If there is a communication carrier, other vehicles
Since the communication slot S (i) is used, the slot
Failed to acquire an empty slot
You. In the case of transmission regulation 1304, transmission is postponed.
The slot acquisition failure 1307
Turn to detection. As described above, the normal transmission 130 using the random number is performed.
2. For distribution of delayed transmission 1303 and transmission regulation 1304
Thus, the race condition can be resolved. Should more than one
Even if the random number distribution in the vehicle is the same,
Since the arbitration process is also performed in the communication cycle,
The state is resolved. The transmission / reception device of the track closing device
As with the on-vehicle transmission / reception device, the four
Slots are dynamically allocated within a lot. The vehicle transmission / reception constructed as described above.
Vehicle equipped with a communication device, and a transmission / reception device for closing tracks
Track closing devices equipped with
Time-division multiplex communication using portable receiving equipment
Thus, the railway alarm generation method according to the embodiment of the present invention
Is achieved. FIG. 14 shows a railway guard according to an embodiment of the present invention.
FIG. 9 is an operation block diagram of a method of generating a report, and is mounted on a vehicle.
The transmitting / receiving device 200 is taken as an example. Also, FIG.
FIG. 16 is a diagram showing a state where an alarm is generated between the two vehicles.
Raise an alarm between the track closing device, a worker, or the station premises S
It is a figure showing a raw state. In FIG. 14, self-state detecting means 140
1 is a point sensor 250, a speed sensor 260, and a database.
The position, speed, traveling direction,
The self-state information such as the route ID is detected. And this self
The data of the self status information is transmitted to the outside using its own communication slot.
To other vehicles, track closing devices, etc. one
On the other hand, it supplies its own position information to the distance calculating means 1403,
Judgment of alarm conditions based on own speed, traveling direction, route ID, etc.
Means 1404 and brake condition determination means 1406
Supply each. [0061] The data receiving device 1402 is provided from another vehicle or the like.
Receiving the status information. The received data of this status information is
To a communication slot other than the communication slot used by
From every other vehicle and track closing device every communication cycle.
The data is the location of each vehicle, etc.
It is state information such as speed, traveling direction, and route ID. Soshi
The received status information of other vehicles, etc.
The position information is supplied to the distance calculation means 1403 for each device,
The speed, traveling direction, route ID, etc. are used to determine the alarm condition.
4 and the brake condition determination means 1406, respectively.
I do. The distance calculation means 1403 is a means for detecting the self state.
Self location information from stage 1401 and data receiving means 14
Position of other vehicles (other vehicles and track closing device) from 02
Calculate distance between own vehicle and other vehicles from information
The alarm condition determining means 1404 and the brake condition determining means
Provide distance information to stage 1406. The alarm condition judging means 1404 detects the self state.
Own speed, traveling direction, route ID from the output means 1401
From the data receiving means 1402,
Row direction, route ID, and self from the distance calculation means 1403
Receives information on the distance between the vehicle and other vehicles, etc., and issues an alarm
Warning command signal when it is determined that the vehicle should be approaching
Is supplied to the alarm output means 1405 to generate an alarm signal.
You. The determination of the alarm condition is made between the own vehicle and another vehicle.
In addition to the distance and speed between
Database of line discrimination, up line and down line
The determination is also made using information obtained from. Also, of course
However, the judgment of the alarm condition corresponds to the speed of each vehicle.
Consider the conditions required for stopping, such as the braking distance.
Is determined. In the present embodiment, in the up line and the down line,
Other vehicles by time division multiplex communication system using different frequencies
Since communication is performed with both parties, it is possible to distinguish between up line and down line
Will be excluded from the determination conditions. The brake condition judging means 1406 outputs the alarm condition.
Similarly to the case determination unit 1404, the self-state detection unit 140
1, the speed, traveling direction, route ID, and data reception
Speed, traveling direction, route of other vehicles from communication means 1402
ID, own vehicle and other vehicle from distance calculating means 1403
Information on the distance to the
When it is determined that the vehicle is in the near state, the brake command signal is
Rake signal output means 1407 to supply a brake signal
generate. The determination of the brake condition is based on the determination method itself.
Is almost the same as the judgment of the alarm condition, but the judgment of the alarm condition
Is a warning in advance and has some margin in time and distance
Does not actually collide with the vehicle, etc.
Is determined as follows. In the above description, the position and speed of the vehicle and the like have been described.
Point sensors as sensor means for detecting the degree and direction of travel
250 and a speed sensor 260 are used. I
However, instead of these sensors, satellite navigation systems such as GPS
Using the satellite signal receiver of the system as a sensor
You can also. In this case, the time division multiplex communication
To obtain the reference signal of the GPS system from the GPS PPS signal.
PS equipment is already installed in each vehicle, so new equipment
No burden is required. FIG. 14 shows a railway guard according to an embodiment of the present invention.
Operation block diagram of report generation method
Although the device 200 has been described as an example, the device 200 is installed in a track closing device.
In the case of the transmitting / receiving device 300, the brake condition determining means
1406, brake signal output means 1407 is unnecessary
That the data from the self-state detecting means 1401
And no direction of travel
Are the same. FIG. 15 is a diagram showing a state of generation of an alarm between vehicles.
FIG. 4A shows that the vehicle A has the speed Sa and the vehicle B has the speed.
Degree Sb shows the case of traveling in the direction approaching each other.
When the alarm condition is satisfied, vehicles A and B
Also generate an alarm signal. FIG. 7B shows that the vehicle A has the speed Sa and the vehicle B has the speed Sa.
Indicates the case where the vehicle is traveling in the same direction with the speed Sb.
In the state where the speed Sa> the speed Sb, the alarm condition is satisfied.
When hit, the vehicle A generates an alarm signal. In this case
Means that the vehicle B does not generate an alarm. FIG. 9C shows that the vehicle A travels at the speed Sa.
And shows that the vehicle B is stopped,
When the condition is satisfied, the vehicle A generates an alarm signal. this
In this case, the vehicle B does not generate an alarm. FIG. 16 shows a vehicle and a track closing device, a worker,
Or it is a diagram showing an alarm generation state between the station premises S,
FIG. 3A shows that the vehicle A is traveling at the speed Sa,
Shows the case of approaching the installed track closing device C1
And both the vehicle A and the track closing device C1 generate an alarm
I do. C2 is a track closing device. FIG. 9B shows that the vehicle A travels at the speed Sa.
And is carried by workers working along the railway track.
Mobile receiver receives the transmitted radio wave of vehicle A and alerts
Alerts the operator that the vehicle is approaching. In addition, mobile reception
Since the transceiver is for receiving only, vehicle A does not generate an alarm.
No. FIG. 9C shows that the vehicle A travels and the station S
Position sensor and data
Detected on a database basis, paused, and issued an alarm.
Live. As described above, the railway according to the embodiment of the present invention
The alarm generation method for each vehicle or track closing device
Sensor means for detecting the position, speed, and traveling direction of a vehicle or the like
And a vehicle database that provides route information of the vehicle or the like.
Vehicles moving on the track and specific locations on the track
Time-division multiplexing of communication between track closure devices installed at points
Do. And in each vehicle, etc., the detection result of the sensor means
The self-state information is set based on the route information in the vehicle database.
The self-status information is sent to other vehicles and track closing devices.
And other vehicles or track closures
Status information from the device. As a result, each vehicle and line
The road closure device uses the self-status information of
Approach based on state information or other track closing device state information
Determine alarm conditions and brake conditions. According to the railway alarm generation method of this embodiment,
For example, like the conventional approach warning method, simply
An alarm is issued by receiving a wireless communication signal (alarm signal).
Unlike the case that occurs, the detection result of the sensor means and the vehicle
Based on the route information in the database, the status of the vehicle and other vehicles
Information (position, speed, route ID, etc.)
Above between railway maintenance vehicles, between track closing device and maintenance vehicles
Only when there is a danger of collision such as
To reduce waste of operator work.
Wear. In addition, the approach warning is determined based on the actual driving conditions.
Improve safety because you can do exactly according to the case
Can be done. According to the railway warning generation method of the present invention,
Each vehicle / track closing device sets its own status information.
In addition, the information is transmitted to the other vehicle / track closing device, and the other vehicle / track closing
Based on the other status information and self status information received from the chain device,
To determine the approach warning condition. In addition, this approach judgment
Conditions include the braking distance corresponding to the speed of each vehicle.
It is defined based on the information required for suspension. Also, each
The self-status information of the vehicle is stored in the road in the database of the vehicle.
The line information and the position, speed, and traveling direction of the vehicle are detected.
Is set based on the detection result of the sensor means.
Approach warning clause based on self status information and received other status information
The case can be determined more appropriately. In addition, the car
Both positions are determined based on signals from the ground
Location data on the track detected by the location sensor
Speed data of the vehicle detected by the sensor and the database
Is calculated based on the data of
Position can be detected. Therefore, between the train maintenance vehicles, the track is closed.
When there is a risk of collision between the chain device and the maintenance vehicle, etc.
Alerts the operator, and alerts the operator
Waste can be reduced. In addition, the approach warning
It can be performed accurately according to the judgment conditions according to the turning situation
Therefore, safety can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing the state of a railway line such as a bullet train, a maintenance vehicle, and a line closing device to which the present invention is applied. FIG. 2 is a configuration diagram of an on-vehicle transmission / reception device used in the railway warning generation method of the present invention. FIG. 3 is a configuration diagram of a line closing transmission / reception device used in the railway alarm generation method of the present invention. FIG. 4 is a configuration diagram of a portable receiving device used with the present invention. FIG. 5 is a diagram illustrating a route database. FIG. 6 is a diagram showing an example of point detection when a railway line branches off in the middle. FIG. 7 is a diagram showing an example of wireless communication data. FIG. 8 is a diagram showing a configuration of a communication cycle and a communication slot in the time division multiplex communication system. FIG. 9 is a diagram showing an outline of communication processing in the time division multiplex communication system. FIG. 10 is a diagram exemplifying a situation of the entire time division multiplex communication. FIG. 11 is a diagram illustrating a relationship between a communication slot, normal communication, and delayed transmission. FIG. 12 is a diagram illustrating an example in which a race condition occurs. FIG. 13 is a diagram showing processing contents in the arbitration processing. FIG. 14 is a diagram showing operation blocks of a transmission / reception device of the alarm generation method of the present invention. FIG. 15 is a diagram showing a state in which an alarm is generated between vehicles. FIG. 16 is a diagram showing an alarm generation state between a vehicle and a track closing device, a worker, or the station premises. FIG. 17 is a diagram showing a conventional railway warning generation method.

────────────────────────────────────────────────── ─── Continuation of the front page (72) Eiji Okabe 2-2-2 Yoyogi, Shibuya-ku, Tokyo East Japan Railway Company Co., Ltd. (72) Yoshifumi Kurosawa 2-2-2 Yoyogi, Shibuya-ku, Tokyo East Japan Railway Company Co., Ltd. (72) Inventor Satoshi Yamada 5-1-1 Shimorenjaku, Mitaka City, Tokyo Japan Radio Co., Ltd. (72) Inventor Hisashi Sato 5-1-1 Shimorenjaku, Mitaka City, Tokyo Sun Inside the Radio Co., Ltd. (72) Inventor Koichi Uchiyama 5-1-1 Shimorenjaku, Mitaka City, Tokyo Japan Inside the Radio Co., Ltd. (72) Kiyohiko Tatebayashi 5-1-1 Shimorenjaku, Mitaka City, Tokyo Japan (56) References JP-A-9-263243 (JP, A) JP-A-10-44998 (JP, A) JP-A-2000-159105 (JP, A) JP-A-2001-106074 (JP, A A) JP-A-8-86853 (JP, A) JP-A-7-267090 (JP, A) JP-A-9-2272 (JP, A) JP-A-2000-142403 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) B61L 1/00-23/34

Claims (1)

(57) [Claim 1] At least one vehicle equipped with a transmitting / receiving device and moving on a track and at least one vehicle provided with the transmitting / receiving device.
In a railway warning generation method for performing communication between two track closing devices to warn of approach, each vehicle is provided with sensor means for detecting the position, speed, and traveling direction of the vehicle, and route information of the vehicle. A vehicle database to be provided, wherein each track closing device includes a position setting means for setting an installation position of the track closing device, and a track closing device database for providing information on a route where the track closing device is installed. In each vehicle, self-state information is set from the detection result of the sensor means and the route information of the vehicle database,
While transmitting the self-state information to the outside, receiving the state information from another vehicle or the track closing device, each track closing device sets the position of the position setting means and the route information of the track closing device database. The self-state information is set from, the self-state information is transmitted to the outside, and the state information is received from a vehicle or another track closing device. A method for generating a warning for a railway, comprising determining an approach warning condition based on vehicle state information or other track closing device state information.