JPH0515121B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a train monitoring device, and particularly to a train monitoring device applied to trains whose train composition is changed at any time by connecting or separating cars. It is.

[Conventional technology]

FIG. 2 is a block diagram showing the configuration of a train monitoring device similar to that shown in, for example, the 19th domestic symposium on the use of cybernetics in railways, p. 496. In the figure, monitoring stations 101 to 104 are installed in each vehicle, corresponding to cars No. 1 to No. 4, respectively, and these stations are connected by a serial transmission line L. Further, vehicle devices 111 to 114 that provide operational information to each monitoring station are installed in each vehicle. The train configuration is a fixed four-car configuration from cars 1 to 4.

Next, the operation will be explained. One of the four monitoring stations, monitoring station 101 or 104 (corresponding to car No. 1 or No. 4, which is the leading vehicle), operates as a control station for serial transmission, and the other monitoring stations operate as dependent stations. . Now, assuming that the left direction in the drawing is the direction of travel,
The control station 101 sequentially calls the dependent stations 102 to 104 to collect information on each vehicle, edits this for display, and displays the information on the display 121 and the dependent station 1.
This is displayed on the display 124 of 04 as appropriate. Each of the dependent stations 102 to 104 has a car number setting switch (not shown), which determines its own station number (for example, 2 to 4, which is the same as the car number), and specifies the station number of its own station. A response (information about the own vehicle) is returned to the control station 101 only when a response request is received. If the trains are in a fixed formation, it is decided that the cars will be lined up in order of car number. Therefore,
The control station can determine the position of the vehicle equipped with each monitoring station in the train composition (i.e., the number of vehicles from the beginning).

[Problem that the invention seeks to solve]

Conventional train monitoring equipment is a semi-fixed system in which the station number of the monitoring station is determined by the switch setting corresponding to the car number, as described above, so when train configurations are combined or changed on a commercial route, A plurality of monitoring stations with the same station number are created, making it difficult to send and receive data from the monitoring stations, and it is also difficult to determine the position of the vehicle on which each monitoring station is mounted in the train composition.

This invention was made to solve the above-mentioned problems, and even in train formations configured by connecting or separating arbitrary vehicle formations,
An object of the present invention is to provide a train monitoring device that can distinguish the station numbers of each monitoring station and determine the position of a vehicle equipped with the same on the train composition.

[Means for solving problems]

A train monitoring device according to the present invention is a train monitoring device for a variable formation train that has a monitoring station mounted on each vehicle and a serial transmission line, and the monitoring station is connected to the serial transmission line and It monitors the operation of the vehicle equipment installed in the vehicle and displays its operating status as appropriate.It has an on/off switch for starting the driver's cab and a cut-off circuit for the serial transmission line. is activated as appropriate by the on/off switch and operates as a control station.The station number is set to 1, and the series transmission line is sequentially connected to the monitoring station of the adjacent following vehicle through a shunt circuit. When a connection response signal is not obtained from the monitoring station for a predetermined period of time, it is determined that the connection is complete and normal monitoring operations begin. It operates as a control station, exchanges a connection response signal with the control station, sets its own station number, and connects to the monitoring station of the adjacent following vehicle through a break circuit.

[Effect]

In the train monitoring device of the present invention, in response to a command from the monitoring station (control station) of the leading car, each monitoring station (dependent station) of the other cars sequentially closes the break circuit. The positional relationship in the train composition of the vehicles to which each dependent station belongs is determined and transmitted to the control station. Thereby, the control station exchanges data between the monitoring stations using station numbers based on the positional relationship of the monitoring stations.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an example of a train composition consisting of four cars 1 to 4. 11-14 are monitoring stations mounted on each vehicle 1-4. Each monitoring station 11-14 includes a monitoring circuit 21 that monitors operation information 1a-4a from each vehicle device 111-114 corresponding to own vehicle 1-4.
24, and transmitting/receiving circuits 31 to 34 for mutually exchanging information of each vehicle and transmitting data. L1 to L5 are serial transmission lines that connect adjacent monitoring stations. SW11 to SW14 are open/close switches that are provided in each of the monitoring stations 11 to 14 and constitute a disconnection circuit for connecting or disconnecting two series transmission lines extending in the front and rear directions of the vehicle, respectively. It is controlled by each monitoring station 11-14. SW21 to SW24 are each open/close switch.
Both ends of SW11 to SW14 and each transmitting/receiving circuit 31 to
34, and is a switch for selecting whether to connect the transmission/reception circuits 31 to 34 of each of the monitoring stations 11 to 14 to the serial transmission line directed toward the front, rear, F, or R direction of the vehicle, respectively. Monitoring station 11
~14. SW31, SW34 are
This is an open/close switch provided in cars 1 and 4 at the end of the train for transmitting a condition that the driver's cab of that car has started operation to the monitoring station 11 or 14 of that car. In a train formation, the driver's cab that outputs driving commands is limited to one location in the lead car, so SW31
Alternatively, only one of the SWs 34 is turned "on" (closed) before the start of train operation. Also, considering that each vehicle 1 to 4 can be the leading vehicle in any variable formation,
The monitoring stations 12 and 13 of each vehicle 2 and 3 may also be provided with open/close switches SW32 and SW33 (not shown).

121 and 124 are indicators provided at the monitoring stations 11 and 14.

Next, the operation will be explained.

(I) When power is started to the vehicle, that is, in the initial state of the train monitoring device, each monitoring station 11
-14 continues to wait for reception of transmission signals from other stations, with the station number (car number of the vehicle) of the own station being undetermined. At this time, each monitoring station has an open/close switch.
SW11 to SW14 are turned off (opened), and the changeover switches SW21 to SW24 are repeatedly switched between the F side and the R side in the figure. The reason why the switching operations of the changeover switches SW21 to SW24 are repeated is because it is not known whether the transmission signal will come from the front or rear of the vehicle.

() Considering the case where driving is started with the left side of the diagram as the traveling direction, the switch SW31 is turned on and the fact that the driver's cab of the vehicle 1 is activated is input to the monitoring station 11.

() Upon receiving input that the driver's cab of the own vehicle has been activated, the monitoring station 11 determines the station number of its own station as "1", turns on the open/close switch SW11, and fixes the changeover switch SW21. (Either F or R side is acceptable). Thereafter, the monitoring station 11 starts operating as a transmission control station.

() The monitoring station 11 as a control station transmits a command to set the station number to "2" on the serial transmission lines L1 and L2. This command only reaches the transmission line L2 because the on/off switches SW12 to SW14 of the following vehicles 2 to 4 are turned off. Since this station number command is repeatedly transmitted, the monitoring station 12 switches the changeover switch SW22 to F.
It is received by the monitoring station 12 when switching to the side.
Therefore, the monitoring station 12 that received this command determines its own station number as "2" and switches the changeover switch SW22.
is fixed to the F side, and a response signal indicating acceptance of this command is transmitted to notify the monitoring station 11 of this fact.

(V) Upon receiving the response signal from the monitoring station 12, the monitoring station 11 notifies the monitoring station 12 that it has been registered as a dependent station with station number "2" and also issues a command to turn on the on/off switch SW12. give.

() Upon receiving this command, the monitoring station 12 turns on the on/off switch SW12, so that the transmission signal transmitted by the monitoring station 11 is transmitted to the serial transmission line L3.

() Next, the monitoring station 11 connects the serial transmission lines L1 to L3.
A command is sent to set the station number to "3". Since the monitoring station 12 has already decided that its own station number is "2", it does not respond to this.

() Since this station number command is repeatedly transmitted in the same manner as described above, when the monitoring station 13 switches the changeover switch SW23 to the F side, the
Received on 3rd. Monitoring station 1 that received this command
3 determines the station number of its own station as "3", fixes the changeover switch SW23 to the F side, and transmits a response signal indicating acceptance of this command,
This is notified to the monitoring station 11.

() Thereafter, in the same way as the monitoring station 12, the monitoring station 13 is registered as a dependent station with station number "3", and the on/off switch SW13 is turned on so that the transmission signal from the monitoring station 11 is transmitted to the transmission line L4. be made to be

Furthermore, the procedure in which the monitoring station 11 transmits a command to set the station number to "4" and the monitoring station 14 that receives this is registered as the station number "4" is the same as described above.

(X) Monitoring station 11 is an open/close switch for monitoring station 14
The procedure continues until SW14 is turned on and a command is issued to set the station number "5" to the serial transmission lines L1 to L5. However, in this example, there are only up to 4 monitoring stations due to the 4-car train, so the station number is set to "5".
The monitoring station 11 does not receive any response to the command.

(XI) The monitoring station 11 continues to issue commands with the station number "5", but if no response is received after a certain period of time, the monitoring station 11 determines that there are no other vehicles and issues the command. abort.

As described above, according to the procedures (I) to (XI), station numbers 1, 2, 3, and 4 are assigned to each of the monitoring stations 11 to 14 in order from the leading vehicle 1 whose driver's cab is activated. Thereafter, this station number can be used to identify each other and exchange data, as well as to know the current train configuration.

Therefore, the monitoring station 11 periodically checks the monitoring stations 12,1.
3 and 14 (station numbers 2 and 14 respectively)
3 and 4), the information from each monitoring station can be collected and the monitoring information collected from all vehicles can be displayed on the displays 121 and 124.

In addition, in the above embodiment, the transmitting/receiving circuits 31 to 34
Switches SW21 to SW24 were provided to switch which series transmission line is connected to the front or rear of the vehicle, but they are unnecessary in the following cases (a) to (c), and are not included in this document. It is not an essential requirement for the invention.

(a) When each monitoring station has its own dedicated transmitting and receiving circuit for the front and rear serial transmission lines.

(b) In the case of a train in which the direction of travel of the train (that is, the direction of the driver's cab) is determined from the beginning. (For example, when the direction is always fixed in a circular line.) (C) Signals flow into the receiving circuit from the front and rear serial transmission lines, but the signals are not transmitted between both series transmission lines. When using a circuit (which can be easily configured by butting diodes, etc.).

Further, in the above embodiment, the case where the leading car of the train formation operates as a control station is shown, but the leading car mentioned here means the cars located at both ends of the train formation, and the leading car of the train formation operates as a control station. It goes without saying that the monitoring station that operates as a control station may be installed at either the front or the rear of the train, as long as the condition that the train is located at either end of the train is satisfied.

〔Effect of the invention〕

As described above, according to the present invention, there is provided a train monitoring device for a variable formation train having a monitoring station mounted on each vehicle and a serial transmission line, in which the monitoring station is connected to the serial transmission line, It monitors the operation of the vehicle equipment installed in each vehicle and displays its operating status as appropriate.It has an on/off switch for starting the driver's cab and a cutoff circuit for the serial transmission line, and is equipped with a The monitoring station is activated as appropriate by the on/off switch and operates as a control station, and the station number is set to 1, and the series transmission line is sequentially connected to the monitoring station of the adjacent succeeding vehicle by a cut-off circuit. When a connection response signal is not obtained from the vehicle's monitoring station for a predetermined period of time or longer, it is determined that the connection is complete and normal monitoring operations are started.
It is connected to a serial transmission line and operates as a slave station, exchanges connection response signals with the control station to set its own station number, and connects to the monitoring station of the adjacent following vehicle through a broken circuit. , which allows the system to be operated by any vehicle recombination without the need for additional train through lines in addition to the minimum series transmission lines used by each monitoring station to exchange data with each other. In train formation, we installed a series transmission line break circuit at each monitoring station and closed it sequentially when the driver's cab was started. This allows us to determine the connections between each vehicle and distinguish between monitoring stations. This has the advantage that it is possible to easily configure a train monitoring device that can exchange monitoring information from vehicle equipment on vehicles.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is a block diagram showing an example of the configuration of a conventional train monitoring device. L1 to L5 are serial transmission lines, 11 to 14 are monitoring stations, 31 to 34 are transmitting/receiving circuits, SW11 to SW1
4 is an open/close switch for disconnecting the series transmission line (wire disconnection circuit), SW21 to SW24 are changeover switches, SW
31 and SW34 are open/close switches for starting the driver's cab.

Claims (1)

[Scope of Claims] 1. A train monitoring device for a variable train formation that includes monitoring stations 11 to 14 mounted on each vehicle and a serial transmission line (L1 to L5, represented by "L"), The monitoring stations 11 to 14 are connected to the serial transmission line L and are connected to vehicle equipment 111 to 114 mounted on each vehicle.
It monitors the operation of the driver and displays its operating status as appropriate.
1 to SW34 (represented by "SW3") and the cable disconnection circuit for the series transmission line L (SW11 to SW14,
The monitoring station 11 of the leading vehicle has an open/close switch SW3.
1 to operate as a control station, set the station number to 1, and sequentially connect the serial transmission line L1 to the monitoring stations of adjacent following vehicles using the shunt circuit SW11. When a connection response signal is not obtained from the station for a predetermined period of time, it is determined that the connection is complete and normal monitoring operations are started.The monitoring stations of other vehicles are connected to the serial transmission line L and It operates as a control station, exchanges connection response signals with the control station, sets its own station number, and connects the disconnection circuit SW.
A train monitoring device that is connected to a monitoring station of an adjacent following vehicle by 1. 2 Each monitoring station 11 to 14 has transmitting/receiving circuits 31 to 3
4 and the changeover switches (SW21 to SW24, SW
2), and the changeover switch SW2 has transmitting/receiving circuits 31 to 34.
Provided between both ends of the shield and disconnection circuit SW1,
Each of the monitoring stations 11 to 14 is connected alternately to the front and rear serial transmission lines L, and the alternate switching drive of the changeover switch SW2 is stopped in response to a station number command from the control station 11, and is sequentially set to a predetermined number. The train monitoring device according to claim 1, wherein the train monitoring device is fixedly connected in a direction.