JP4798868B2 - Train control device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a train control device, and more particularly to a train control device employing an in-vehicle signal system.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a train control apparatus that employs an in-car signal system employs a track circuit system that divides a rail on which a train travels into fixed sections and uses the separated rail as a part of an electric circuit. That is, this track circuit type in-vehicle signal system is configured such that signal display information is transmitted from the ground device to the divided rails.
[0003]
A train traveling on the above-described rail is provided with a vehicle upper (antenna) that receives signal display information from the rail, and the signal display information received at all times is processed through the vehicle upper. An on-board device is provided. The on-board device continuously displays (displays) the received signal display information in the vehicle (driver's cab) and notifies the staff (driver), and based on the received signal display information, the ATS ( Automatic train stop device) control and ATC (automatic train control device) control are performed.
[0004]
The in-vehicle signal train control apparatus having the above configuration can remove the ground signal (1), so that the equipment cost can be reduced and the maintenance management cost can be reduced. {Circle around (2)} The signal display can always be confirmed regardless of the ambient conditions of the operation section. For example, the signal display can be confirmed even in dense fog. (3) Since the change of the signal display can be easily confirmed, the safety level is higher than that of the ground signal system in which a traffic signal is installed on the ground, and the transportation efficiency can be improved. (4) There is a feature that there is no possibility of signal misrecognition because there is no signal display inside the closed section occupied by the train (direction in which the train travels).
[0005]
[Problems to be solved by the invention]
However, the above-described conventional in-vehicle signal system train control device cannot provide a warning sign because the driver cannot recognize the boundary of the closed section in advance. Since it is impossible to recognize in advance the operating conditions of the block section, it is necessary to provide a warning signal. Furthermore, since track circuits are continuously installed and the number of track circuits increases, there is a disadvantage that the equipment cost increases and the maintenance management cost increases.
[0006]
Therefore, the present invention has been made to solve the above-described drawbacks, and an object of the present invention is to provide an in-vehicle signal type train control apparatus capable of reducing the overall cost.
[0007]
[Means for Solving the Problems]
Train control device according to the present invention, in order to achieve the above object, the train control device including a on-board equipment and the ground device, before Symbol ground system, the station with provided each station traveling trajectory of the train The predetermined length sandwiched is set as a predetermined wireless communication area, and predetermined signal display information is transmitted by radio communication to a train in the predetermined wireless communication area, and the on-board device is equipped with the on-board device. When it is detected that a train that has entered the wireless communication area, while performing in-vehicle display based on signal display information transmitted by radio from the ground device, on the stop station where the train stopped Receives and stores the distance data transmitted from the ground device of the stop station to the wireless communication area of the ground device of the next station, and departs the stop station based on the stored travel distance data. Controls travel of the train, is characterized in that. In addition, the on-board device captures the measured travel distance of the train, and even if the measured travel distance of the train becomes the travel distance data, the on-board device has a wireless communication area of the ground device provided at the next station. When it is not possible to detect that the vehicle has entered, the brake of the train is operated . The ground device is connected to the adjacent ground device by wireless communication. Further, the wireless communication between the on-board device and the ground device is performed by adding predetermined identification information.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of a train control device that employs an in-vehicle signal system according to an embodiment.
[0009]
A rail (track) r on which the train travels is provided with a plurality of stations (two stations, A station and B station in the illustrated example, which will be described below as two stations) at a predetermined interval. . Of the trains that run on the rail r, trains i and b are shown as down trains, and trains c and d are shown as up trains.
[0010]
The A station and the B station are respectively provided with ground devices 1a and 1b in which each station is a wireless communication area (hereinafter referred to as “communication area”). The ground device 1a and the ground device 1b are configured to communicate with each other wirelessly via the antennas 1a 'and 1b'. Since the facilities of A station and B station are the same structures, it demonstrates below centering on A station. In B station, the same components as A station are given the same reference numerals as A station, and the subscript “b” is attached as a subscript.
[0011]
In the figure, reference numerals 2a and 3a are ground elements installed in the middle of the station A, and the ground element 2a can inform the down train A that it has entered the communication area of the ground device 1a. It is configured as follows. Moreover, the ground element 3a is comprised so that it can alert | report that it approached into the communication area of the ground apparatus 1a with respect to the upward train c.
[0012]
In the figure, 4a and 5a are extremely short track circuits (minimum track circuits) that are installed with the station A in the middle, and are provided adjacent to the ground unit 2a and the ground unit 3a, respectively. ing. Of these, the track circuit 4a is configured to be able to notify the descending train A that it has entered the communication area of the ground device 1a. In addition, the track circuit 5a is configured to be able to notify the upstream train c that it has entered the communication area of the ground device 1a.
[0013]
The ground elements 2a and 3a and the track circuits 4a and 5a are both for informing the train that the ground device 1a has entered the communication area, and only one of them, for example, only the ground elements 2a and 3a, Or it can be only track circuit 4a, 5a. As described above, when both the ground elements 2a and 3a and the track circuits 4a and 5a are used, the train can be notified more reliably.
[0014]
Each of the trains a to i traveling on the rail r is equipped with an on-board device 10 for communicating with the ground devices 1a and 1b by radio. Since the on-board device 10 mounted on each of the trains A to D has the same configuration, the electrical configuration of the on-board device 10 and the ground device 1a mounted on the train A will be described below with reference to the block diagram of FIG. It explains using.
[0015]
The on-board device 10 has a control unit 11 formed around a CPU. The control unit 11 includes a transmission / reception circuit 13 for wirelessly communicating with the ground device 1a via the antenna 12, and position information (ground device) input from the ground child 2a and the track circuit 4a via the vehicle top 10 '. 1a), and information indicating the travel distance from a speed generator (TG) (not shown) provided in the train (a). A train position detection circuit 14 is connected.
[0016]
The ground device 1a has a control unit 20 formed around a CPU. The control unit 20 communicates wirelessly with the on-board devices 10 of the trains A and C via the antenna 1a ', and with the ground device at the adjacent station (the ground device 1b at the B station in the example of FIG. 1) A transmission / reception circuit 21 for communication and a communication control unit 22 for communication with an electronic interlocking device (electronic interlocking control panel) (not shown) that controls the train at station A are connected.
[0017]
Hereinafter, the control operation of the train control device configured as described above will be described with reference to the flowchart of FIG.
[0018]
When the train A approaches the A station, the train I can obtain the position information that the train A has entered the communication area of the ground device 1a from the ground element 2a and the track circuit 4a (Yes in Step 100. Hereinafter, “S” is the step. And). Thereby, the on-board device 10 of the train A enters a communication state with the ground device 1a (S102). That is, the train A is placed under the control of the ground device 1a, and the in-vehicle display of the train A is performed by the signal display information obtained from the ground device 1a.
[0019]
Once communication between the on-board device 10 and the ground device 1a is started, it is monitored in each of the on-vehicle device 10 and the ground device 1a whether or not the communication is continued without being interrupted. In this communication, when a disconnection is detected between the on-board device 10 of the train A and the ground device 1a, or when a disconnection is detected between the ground device 1a and the on-vehicle device 10 Is a communication error and is determined to be an error process (No in S104, S105). When an abnormality occurs, the train A is stopped by the brake being activated, and safety is ensured.
[0020]
The communication between the on-board device 10 of the train A and the ground device 1a and the communication between the ground devices 1a and 1b are performed with an identification code (ID). That is, the transmission of data from the on-board device 10 of the train A to the ground device 1a is performed by attaching an ID for identifying the train A to the data. Therefore, the ground device 1a does not misidentify data from other trains (for example, up trains C) as data on trains i. In addition, transmission of data from the ground device 1a to the train A is performed with an ID indicating that the data to be transmitted is for the train A and is data from the ground device 1a. Therefore, train A can prevent receiving data erroneously from the adjacent ground device 1b. Since communication between the ground devices 1a and 1b is also performed with an identification code, erroneous data exchange can be prevented in advance.
[0021]
When the departure signal display information is given to the train A stopped at the station A (Yes in S106), the train A travels to the station B based on the control using the distance data (S108).
[0022]
FIG. 3B shows a control operation in which the train A travels from the A station to the B station. First, when the running of the A station to B station is permitted, the travel distance data from the ground apparatus 1a to the B station is sent to the onboard system 10 of the train Lee, the travel distance data is stored in a memory (not shown) (S200). And when train A departs from A station (S202 affirmation (the claim says "the train is from a predetermined communication area". Advancement from this communication area means the same as the departure from the station in the present invention) )), The travel distance of train A is taken in from the speed generator (TG) (S204).
[0023]
When the travel distance taken from the speed generator, that is, the travel distance of train A becomes the travel distance from station A to station B stored in the memory in advance (Yes in S206), train A is station B. If it enters into the communication area of the ground device 1b which manages (S208 affirmation), it will be controlled by the normal processing mode similar to A station by the communication between the train A and the ground device 1b (S210). However, when the train A cannot detect the communication area of the ground device 1b even if it travels a predetermined travel distance (No in S208), that is, the train A is grounded via the ground element 2b and the track circuit 4b. When it is not possible to detect that the vehicle has entered the communication area of the device 1b, some abnormality has occurred in the equipment such as the on-board device 10 or the ground device 1b. Thus, safety is ensured (S209).
[0024]
The flowchart in FIG. 3C shows the control operation of the apparatus startup process. That is, when the control operation is newly started by completing the train control device, or when the train control device once stopped is restored and the control operation is started (Yes in S300), all trains (example in FIG. 1) Then, after the initial process for grasping the current position of trains (i) to (d)) is performed, the normal process mode process is performed (S302, S304 positive, S306).
[0025]
Initial processing of each of the ground devices 1a and 1b (hereinafter, the ground device 1a will be described as an example) starts with the status of the switch, the track circuit, and the like in the communication area of the ground device 1a. The wireless communication from 10 is confirmed. When the ground device 1a is started up, the on-board device 10 of each train is in a state where the power is turned on and the normal processing mode can be dealt with, and therefore it can communicate with the ground device 1a.
[0026]
When there is no train in the communication area of its own ground device 1a, the ground device 1a is moved to the normal processing mode with the confirmation. Also, when a train is present in the communication area of its own ground device 1a, if the train (train A, C in FIG. 1) is traveling on a route constituted by an electronic interlocking control panel (not shown). After the train has traveled through the closed section (the section of the vertical line separating the rail r of the station A in FIG. 1), it is in a standby state until it stops, and then the ground device 1a and the on-board devices of the trains A and C Controlled under communication with 10,10.
[0027]
At the time of starting up the ground device 1a, when the trains A and C are stopped, the normal processing mode is set after the communication between the ground device 1a and the on-vehicle devices 10 and 10 of the trains A and C is resumed.
[0028]
When the onboard devices 10 and 10 of the trains A and C are started up, the initial start is performed. That is, when the power of the onboard devices 10 and 10 is turned on, first, the self-diagnosis function of the onboard device 10 works. When it is determined that the onboard device 10 is normal, the communication with the ground device 1a is performed. Put it in a possible state. After that, the course is set up to the position corresponding to the place or the departure signal by the electronic interlocking control panel, and is temporarily stopped to enter the communication area. Then, when a communication area confirmation button (not shown) provided on the on-board devices 10 and 10 of the trains A and C is pressed, the communication between the trains A and C and the ground device 1a is started, and the trains A and C Is placed in normal processing mode.
[0029]
【The invention's effect】
In the train control device according to the present invention, when the on-board device detects that the train on which the on-board device is mounted has entered a predetermined communication area, signal display information transmitted by radio from the ground device. The ground device uses the predetermined length of the track on which the train travels as a predetermined communication area, and displays a predetermined signal by radio communication with respect to the train in the predetermined communication area. Since information is transmitted, it can be realized at low cost.
In addition, the travel control from the predetermined communication area to the next predetermined communication area of the train is the distance information from the predetermined communication area input in advance to the next predetermined communication area and the travel of the measured train When it is performed based on the distance information, it can travel safely outside the communication area.
When the ground device is connected to the adjacent ground device by wireless communication, since the communication cable is not provided, the cost can be reduced.
Furthermore, when wireless communication between the on-board device and the ground device is performed with predetermined identification information added, accurate communication without error can be performed.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a train control device according to an embodiment of the present invention.
FIG. 2 is a block diagram showing an electrical configuration of a ground device and an on-vehicle device.
FIG. 3 is a flowchart showing a control operation.
[Explanation of symbols]
1a. 1b Ground device 2a, 2b, 3a, 3b Ground element 4a, 4b, 5a, 5b Track circuit 10 On-board device ii Train

Claims (4)

In a train control device including an on-vehicle device and a ground device ,
Before Symbol ground device, a predetermined length across the station with provided each station traveling trajectory of the train to the predetermined wireless communication area, a predetermined signal by wireless communication to train at the predetermined wireless communication area Send presenting information ,
When the on-board device detects that a train equipped with the on-board device has entered the wireless communication area, the on-board device displays the in-vehicle display based on the signal display information transmitted by radio from the ground device. On the other hand, at the stop station where the train stops, the distance data to the radio communication area of the ground device of the next station transmitted by radio from the ground device of the stop station is received and stored, and the stored distance data Based on the control of the train that departed from the stop station,
A train control device characterized by that . The on-board device captures the measured train travel distance and cannot detect that the measured train travel distance has entered the wireless communication area of the ground device of the next station even if the distance data becomes the distance data. The train control device according to claim 1 , wherein the train brake is operated .   The train control device according to claim 1 or 2, wherein the ground device is connected to adjacent ground devices by wireless communication. The train control device according to any one of claims 1 to 3 , wherein the wireless communication between the on-board device and the ground device is performed by adding predetermined identification information.

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