JP2002114147A - Intermediate block instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control a signal and also a railroad crossing with a single intermediate block instrument. SOLUTION: The intermediate block instrument arranged in a block section delimited between stations comprises transmission cables laid between the stations to transmit given signals, signal-control signal sampling means for sampling a control signal for a signal related to the block section from the transmission cables, signal control means for drive-controlling the signal related to the block section on the basis of the sampled signal-control signal, crossing- control signal sampling means for sampling a control signal for a railroad crossing related to the block section from the transmission cables, and crossing control means for drive-controlling the railroad crossing related to the block section on the basis of the sampled crossing-control signal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intermediate blocking device formed between stations, and more particularly to a device capable of performing signal control and level crossing control with a small number of cables.

[0002]

2. Description of the Related Art As a conventional intermediate blocking device, for example, the 17th edition "Signal" P.K. As shown in the connection diagram of FIG. 269, a three-core cable for return, an operation direction relay circuit, and a direction lever circuit is laid between stations, and a signal provided between stations is controlled. It is configured to be.
Also, although not disclosed in this connection diagram, two
A level crossing cable composed of a core is laid, and a level crossing device such as a level crossing alarm and a level crossing breaker provided at the level crossing is controlled via the cable.
In the present invention, the control of the level crossing device is referred to as “level crossing control”.

[0003]

However, in the above-mentioned conventional intermediate blocking device, the cable for controlling the traffic light and the cable for controlling the railroad crossing are separately laid, so that the number of cables increases, and therefore the equipment cost is increased. There was a drawback that it became bulky. Furthermore, since the control device for the traffic light and the control device for the railroad crossing are separately provided, it is necessary to separately maintain these devices, and there is a disadvantage that the maintenance management becomes difficult.

The present invention has been made in order to solve the above-mentioned drawbacks, and an object of the present invention is to provide an intermediate block device in which the number of cables to be laid is small and maintenance is easy. is there.

[0005]

In order to achieve the above object, an intermediate blocking device according to the present invention is an intermediate blocking device provided in a blocking section formed between stations, wherein the intermediate blocking device is installed between the stations. A transmission cable for transmitting the predetermined signal, a signal control signal extracting means for extracting a control signal of the traffic signal relating to the block section from the transmission cable, and a control section for the block section based on the extracted control signal of the signal section. Traffic signal control means for driving and controlling a traffic signal; level crossing control signal extracting means for extracting a level crossing control signal for the level crossing from the transmission cable; level crossing for the level crossing based on the extracted level crossing control signal And a railroad crossing control means for controlling the driving of the vehicle.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of an intermediate blocking device according to one embodiment.

In FIG. 1, L1 and L2 are two-core transmissions respectively laid between an electronic interlocking device 1a at the station A and an electronic interlocking device 1b at the second station. Cable. These transmission cables L1, L
2) When the intermediate block device described later is not a dual system, only one of the transmission cables is laid.

In FIG. 1, a1 and a2 denote intermediate blocking devices. In this case, two intermediate blocking devices are shown. A corresponding number is provided. Since the intermediate blocking devices a1 and a2 have the same structure, the intermediate blocking device a1
Will be described as an example.

The intermediate block device a1 has a 1-system processing unit b1
And a two-system processing unit b2. Therefore, even if one of them fails, it can be processed using the other processing unit, and the train can be operated continuously.

Since the first-system processing unit b1 and the second-system processing unit b2 have the same configuration, the first-system processing unit b1 will be described below as an example. A communication control unit 1 having a function of a repeater for inputting a predetermined signal (information) from the transmission cable L1 and transmitting a predetermined signal to another intermediate block device is input to the 1-system processing unit b1.
0 and an intermediate block device a1 mainly composed of a CPU and based on a predetermined signal (information) obtained from a transmission cable L1.
A logic unit 1 that performs a predetermined arithmetic process for obtaining a drive signal of a traffic signal (not shown) related to a block section provided with a signal and a railroad crossing drive signal (not shown) related to an intermediate block section.
1 and a communication control unit 12 for communicating with another system processing unit (here, the second system processing unit b2).

In FIG. 1, R1 is a relay for driving a traffic light, and R2 is a relay for driving a railroad crossing. These relays R1 and R2 are configured to operate via a normal system 1 relay in which the first system processing unit b1 operates in a normal state, or a second system normal relay in which the second system processing unit b2 operates in a normal state. ing. Both relays R1,
Which system processing unit (b1, b2) R2 is operated by is determined by the logic of both systems b1, b2. For example, when the first-system processing unit b1 is the main system and the second-system processing unit b2 is the sub-system, both systems b1 and b2 are determined to be normal by the self-diagnosis mechanism (not shown) provided in the logic units 11 and 11. At this time, the drive of both relays R1, R2 is controlled by the 1-system processing section b1. When an abnormality occurs in the main system (b1), the drive is controlled by the processing unit of the sub system (b2).

Next, the control operation of the intermediate blocking device b1 in the intermediate blocking device having the above configuration will be described. It is assumed that the first system processing unit b1 is set to the main system. Now, assuming that a predetermined signal (an FSK signal for controlling a traffic signal and a railroad crossing) generated by the electronic station interlocking device 1a or 1b is transmitted to the cables L1 and L2.
The predetermined signal is input to the logic unit 11 via the communication control unit 10.

The logic section 11 drives and controls the traffic signal (progress indication,
Predetermined arithmetic processing for performing an attention display, a stop display, etc.) is performed, and the signal output relay R1 is driven by the result of the arithmetic processing. Although only one signal output relay R1 is shown here, the same number of signal output relays R1 are actually prepared. Further, the logic section 11 performs predetermined arithmetic processing for driving control of the railroad crossing based on the signal (information) obtained from the transmission cable L1, and drives the railroad crossing output relay R2 based on the result of the arithmetic processing.
Therefore, when this railroad crossing output relay R2 is driven,
Predetermined level crossing control such as starting operation of the level crossing breaker is performed.

[0014]

According to the present invention, there is provided an intermediate blocking device comprising: a transmission cable laid between stations for transmitting a predetermined signal; and a signal control signal extraction for extracting a control signal of a signal related to a block section from the transmission cable. Means, traffic signal control means for driving and controlling the traffic signal relating to the block section based on the extracted control signal of the traffic signal, and level crossing control signal extracting means for extracting a control signal of the level crossing for the block section from the transmission cable. And a level crossing control means for driving and controlling the level crossing in the block section based on the extracted level crossing control signal, so that the traffic signal and the level crossing can be controlled by one cable, and the equipment cost is reduced. In addition, there is a feature that the maintenance management of the traffic signal and the railroad crossing can be performed by the maintenance management of one intermediate blocking device.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an intermediate blocking device according to an embodiment of the present invention.

[Explanation of symbols]

 1a Kou Station electronic interlocking device 1b Otsu Station electronic interlocking device L1, L2 Transmission cable b1 1 system processing unit b2 2 system processing unit 10, 12 Communication control unit 11 Logic unit (CPU) R1 Signal output relay R2 Railroad crossing output relay

Claims (1)

[Claims] 1. An intermediate blocking device provided in a block section formed between stations, comprising: a transmission cable for transmitting a predetermined signal laid between the stations; and a traffic signal related to the block section from the transmission cable. Traffic signal control signal extraction means for extracting the control signal of the traffic signal control means for driving and controlling the traffic signal pertaining to the block section based on the extracted control signal of the traffic signal, and the level crossing pertaining to the block section from the transmission cable. An intermediate blocking device, comprising: a level crossing control signal extracting unit that extracts a control signal; and a level crossing control unit that drives and controls a level crossing in the block section based on the extracted level crossing control signal.