JP2000224204A - Duplicate train control command transmitter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To configure a duplicate system for train control command transmitters without the use of a changeover means. SOLUTION: Two train control command transmitters 11 (21) having a control command generating means 21 (22) that generates a train control command on the basis of information from a driver's stand, a transmission means 13 (23) that transmits a control command to a control command transmission line 18, and a reception means 14 (24) that receives the control command on the control command transmission line 18 are used to configure a duplicate system train control command transmission system. Then the 2nd system train control command transmitter 21 is provided with a fault detection means 25 that detects a fault of the 1st system train control command transmitter 11 and an output of the fault detection means 25 turns on/off the transmission means 23 of the 2nd system train control command transmitter to omit a changeover means of the duplicate system.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dual train control command transmitting device for transmitting a train control command from a cab to a propulsion control device of each vehicle.

[0002]

2. Description of the Related Art FIG. 3 is a block diagram showing a conventional train control command transmission device. In FIG. 3, reference numerals 11 and 21 denote first and second train control command transmission devices, and 12 and 22 first and second train control command generation units that generate control commands based on information from the cab. Means, 13 and 23
Are first-system and second-system control command transmitting means for transmitting the generated control command, 14 and 24 are first-system and second-system receiving means for receiving a signal on the control command transmission line, Reference numeral 15 denotes a failure detection unit for detecting a failure of the first system itself, 16 is a switching signal transmission line, 17 is a system switching unit, and 18 is a control command transmission line.

In a normal state, the train control command transmission device 11 of the first system transmits the control command transmission line 18 through the switching means 17.
It is connected to the. The receiving means 14 of the first system receives the control command signal flowing on the control command transmission line 18, and the failure detecting means 15 of the first system monitors the control command signal.

When the first train control command transmission device 11 fails and the first failure detection means 15 detects a failure, a switching signal is output on the switching signal transmission line 16 to switch the switching means 17. To switch the control command transmission device connected to the control command transmission line 18 from the first system 11 to the second system 21.

FIG. 4 shows another conventional apparatus disclosed in Japanese Patent Application Laid-Open No. 1-175338. When the names of the above-mentioned conventional apparatus (FIG. 3) are applied to FIG. 4, the main master station is a control command transmission apparatus 11 of the first system, the spare master station is a control instruction transmission apparatus 21 of the second system, Is the control command transmission line 18
Is equivalent to

In the normal state, the control command transmission device 1 of the first system
1 transmits a control command on the control command transmission line 18, but when the transmission is interrupted, the second control command transmission device 21 detects a failure and starts transmitting the control command.

[0007]

In the above-mentioned first conventional apparatus, switching means is required. Since the switching means is in the path of the control command, it is a negative factor in terms of reliability, and there is a problem that the apparatus becomes complicated and disadvantageous in cost.

Although the second conventional apparatus does not require any switching means, the only effective cab in the train is the cab of the leading vehicle on one side, and the first and second train control command transmission devices are effective. The configuration in which each is connected to both ends of the bus is not a dual system in train control. Therefore, there is a problem that this conventional device cannot be applied to a train control command transmission device. Further, this conventional apparatus does not describe a case where the first system returns to normal again,
If the first system stops transmitting and then returns to normal for some reason, the first and second train control command transmission devices simultaneously transmit control commands, and the control commands may be destroyed. There is a problem that there is.

FIG. 5 shows a case where the first and second train control command transmission devices 11 and 21 of the second conventional device transmit control commands and the transmission timings of the control commands coincide. . In FIG. 5, reference numeral 1 denotes a control command timing transmitted by the first train control command transmission device, and reference numeral 2 denotes a control command timing transmitted by the second train control command transmission device. In this case, all control commands are destroyed.

[0010]

A dual-series vehicle control command transmission device according to the present invention includes a control command generation means for generating a train control command based on information from a driver's cab, and a control command transmission means for transmitting the control command on a control command transmission line. A dual-series vehicle control command transmission device composed of a first system and a second system using two train control command transmission devices each having a transmission means for transmitting a control command transmission line and a reception means for receiving a control command of a control command transmission line. A fault detecting means for detecting a failure of the first train control command transmitting device in the second train control command transmitting device, and a second train control command transmitting device based on an output of the fault detecting means. ON / OFF transmission means
It is something to do.

Further, the period of the train control command signal transmitted by the first train control command transmitting device and the cycle of the train control command signal transmitted by the second train control command transmitting device are made different.

A train control command transmission device is connected to both ends of a control command transmission line in a double system.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a block diagram showing a dual-series vehicle control command transmission device according to Embodiment 1 of the present invention. Only the differences between FIG. 1 and FIG. 3 will be described. In the present embodiment shown in FIG. 1, the failure detecting means 15 belonging to the first train control command transmitting device 11 is omitted, and the first train failure is detected while belonging to the second train control command transmitting device 21. The failure detection means 25 which performs this is added. The output of the failure detection stage 25 is transmitted to the transmission means 23 of the second system.
Is turned on / off. Also,
The first train control command transmission device 11 and the second train control command transmission device 21 are directly connected to the control command transmission line 18 without any switching means.

Next, the operation will be described. Control command transmission line 18
Above is a first and second train control command transmission device 1
1, 21 are always connected. In the normal state, only the first train control command transmission device 11 transmits a control command, and the second train control command transmission device 21 is in a standby state. The receiving means 24 of the second system receives the control command signal flowing on the control command transmission line 18, and the failure detecting means 25 monitors the control command signal. If the control command is transmitted normally, the failure detecting means 25 sends a signal to the second transmitting means 23 to stop (OFF) the transmission.

When the first train control command transmitting device 11 fails and the failure detecting means 25 detects a failure, the failure detecting means 25 sends a signal to the second transmitting means 23 to start transmission (ON). ).

Thereafter, the first train control command transmission device 11
Returns to the normal state, the failure detection means 25 detects the return of the first system, and after confirming that the system has been stable for a certain period of time,
A signal is sent to the transmission means 23 of the second system to stop transmission (OFF). When the first system returns, there is a period during which the first and second train control command transmission devices 11 and 21 transmit control commands, and this period will be described in the next paragraph.

FIG. 2 shows the transmission timing of the control command.
1 and 2 are the same as in FIG.
Is a control command that is not destroyed. The train control command transmission device 11 of the first system transmits the control command in the cycle A, while the train control command transmission device 21 of the second system has the cycle B = 2A
Is transmitting a control command. As shown in FIG. 2, even if the control command transmission timings of the first and second train control command transmission devices 11 and 21 coincide at a certain point in time, a control command 4 that is not destroyed is transmitted in the cycle B. That is guaranteed. As for the ratio between A and B, an appropriate value is set in relation to the time required for transmitting one control command.

[0018]

As described above, according to the present invention, even when a control command transmission device is used in a train in a dual system, the present invention can be realized without using switching means, and there are advantages in both reliability and cost. There is.

Further, after the first system stops transmission and the second system starts transmission, the first system can return again, and the reliability is further improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a dual system vehicle control command transmission device according to a first embodiment of the present invention.

FIG. 2 is a waveform chart showing a control command transmission timing according to the first embodiment.

FIG. 3 is a block diagram showing a conventional dual system vehicle control command transmission device.

FIG. 4 is a block diagram showing another conventional train control command transmission device.

5 is a waveform chart showing a control command transmission timing of the conventional device shown in FIG.

[Explanation of symbols]

1 control command timing transmitted by a first train control command transmission device; 2 control command timing transmitted by a second train control command transmission device; 3 control commands to be destroyed;
4 control command not to be destroyed, 11 train control command transmission device of the first system, 12 control command generation means of the first system, 13 transmission means of the first system, 14 first
System receiving means, 18 control command transmission line,
21 second system train control command transmission device, 22 second system control command generation means, 23 second system transmission means, 24
Second-system receiving means, 25 First-system failure detecting means belonging to the second system.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Takashi Miyauchi 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsui Electric Co., Ltd. (72) Masayuki Takeyama 2-3-2 Marunouchi, Chiyoda-ku, Tokyo 3-72 F term in Ryo Denki Co., Ltd. (reference) 5H115 PC07 PG01 SL02 SL05 TO30 TR20 TZ14 5K021 AA04 CC05 DD02 DD05 FF04 5K032 AA06 BA06 BA08 EA04 EB06 5K035 AA03 BB02 DD01 LL14

Claims (3)

[Claims] 1. A control command generating means for generating a train control command based on information from a cab, a transmitting means for transmitting a control command generated by the control command generating means on a control command transmission line, A dual train control command transmission device comprising a first system and a second system is constituted by using two train control command transmission devices having a receiving means for receiving a control command of a command transmission line, and a second system train Failure detection means for detecting a failure of the first train control command transmission device is provided in the control command transmission device, and the transmission means of the second train control command transmission device is turned on / off by the output of the failure detection device. A dual-series vehicle control command transmission device, characterized in that: 2. The dual train control command transmission device according to claim 1, wherein the first train control command transmission device and the second train control command transmission device transmit a different cycle of the train control command signal. Series vehicle control command transmission device. 3. The dual system vehicle control command transmission device according to claim 1, wherein a train control command transmission device is connected to both ends of the control command transmission line in a double system.