CN1023597C

CN1023597C - Long Rail blocking system

Info

Publication number: CN1023597C
Application number: CN 91100824
Authority: CN
Inventors: 司徒镇国; 杨悌惠
Original assignee: Communication Signals Instof Scientific Research Inst Ministry Of Railways (cn
Current assignee: Communication Signals Instof Scientific Research Inst Ministry Of Railways (cn
Priority date: 1991-02-12
Filing date: 1991-02-12
Publication date: 1994-01-26
Anticipated expiration: 2006-02-12
Also published as: CN1053037A

Abstract

The present invention discloses a long rail blocking system; a long rail circuit of 25Hz is arranged in a section between rail stations, matched with a rail circuit of an electric concentration adjacency section at two end stations, and combined with relay semiautomatic block to form a blocking link method which can automatically detect the vacancy of whole section between stations and can automatically confirm the complete arriving of a train; three conditions of the rail circuit are respectively connected to blocking line relay circuits at two stations; as long as trains and vehicles are left at any quarter in the section, the blocking line relay circuit is cut off; the regular relation between blocking machines of two stations are cut off, which prevents a second train in the two sections from being dispatched to the section and avoids the occurrence of accidents.

Description

Long rail blocking system

The invention belongs to the railway signal control field, more particularly the present invention relates to the inaccessible method of a kind of driving, in the prior art, China railways single line section mainly adopts the all-relay semi-automatic block system standard, this is that China Communication Signals Inst.of Scientific Research Inst. Ministry of Railways (CN just began one's study from 1954, and succeeding in developing a kind of obturation modes and the equipment of finalizing the design in 1964 in the back, because it was replacing the heavy work of needs to operate and do with material object the electric staff system and the electric tablet block system of running token at that time, and with the voucher of signal aspect and indication as the train occupation interval, no matter all improving greatly a step on the efficient and on the safety, this also is the reason that it finds broad application in China, up to the present installed about 40,000 kilometers, China Railway has been made important contribution.But, along with the continuous increase of railway transporting amount and the raising of train speed, also just produced the situation that all-relay semi-automatic block system can not adapt to this development, mainly be that all-relay semi-automatic block system can not be automatically and free time between the test zone reliably, can not automatically confirm the arrival fully of train, need Platform attendant to go cross-check sum to confirm artificially, this just make Platform attendant might be in acting hurriedly in a messy situation blocking mistakenly, particularly use the emergency button block cleared of block instrument mistakenly, this is a danger close, it is the immediate cause that causes driving serious accident and grave accident, train collision accident that take place in Tonghua branch office of Shenyang Railway Bureau July 27 nineteen ninety and October 3 have just illustrated this point in the train from overtaking collision accident that Beijing Railway Administration Datong District branch office takes place.

In order to remedy the above-mentioned serious shortcoming of all-relay semi-automatic block system equipment, the present invention propose a kind of can automatic inspection space and confirm the long rail blocking system method and apparatus that train arrives fully automatically whether, interval, prevent the inaccessible formality of Platform attendant wrong handling, cause train operation accident.

Above-mentioned purpose of the present invention reaches like this, in block section between stations, establish a long track circuit (establishing two in case of necessity), cooperate the used track circuit of station, two ends electric interlocking near section, and combine with former single track all-relay semi-automatic block system, make it formation and handle the necessary contact method of driving, the condition of interval interior three track circuits at both ends respectively is connected in the line relay circuit of semi-automatic block system, as long as there is train occupation in any location in interval or leaves vehicle, line relay circuit is disconnected, interrupt the normally associate between the block instrument of two ends, prevent that two ends from sending second train to the interval again, avoid accident to take place.The long rail blocking system device comprises block instrument and the line relay that is provided with and the track circuit at station, interval two ends between two stations, interval interior except that two track circuits near section, a 25Hz long track circuit also is set, the pick-up contact of interval three track circuit track relays is connected on respectively on the contact circuit in the two station relay rooms, whether in order to there to be car to take between the test zone, only normally blocking is inaccessible with releasing under the section cleared condition.

The present invention compared with prior art, its advantage is just like following:

(1) can automatically check out and have or not train to exist in the interval, only could blocking under the section cleared condition and remove inaccessiblely, and carry out recovery operation, equipment is restored;

(2) can automatically confirm the arrival fully of train, only just possible block cleared under train arrival condition fully;

(3) when the track circuit et out of order, interrupt normal inaccessible contact between two stations, more meet the fail safe principle.

Fig. 1 is a basic circuit of the present invention, has adopted the code of following relay and button among the figure:

The positive line relay of ZXJ-

FXJ-negative wire road relay

The positive electrical relay of ZDJ-

FDJ-negative electricity relay

The BSJ-make-busy relay

KTJ-opens relay

ZKJ-prepares to open relay

The XZJ-selective relay

The HDJ-receipt arrives relay

The TJJ-relay of accepting a train

TCJ-notifies the relay that sets out

FUJ-restores relay

The GDJ-track relay

YXJ-calling-on signal relay

1J-1 checks relay

2J-2 checks relay

YJJ-guiding release relay

The descending photograph of XZCJ-is looked into relay

The up photograph of SZCJ-is looked into relay

JFJ-sending and receiving car relay

The descending route of XKLJF-begins repeater relay

Relay is shown in the release of YXJFJ-calling-on signal repeatedly

XJGJF-is descending near the section track repeater relay

XJGJ-is descending near the section track relay

SJGJ-is up near the section track relay

XJGJF-is descending near the section track repeater relay

SJGJF-is up near the section track repeater relay

WGJ-section without a switch track relay

WGJF-section without a switch track repeater relay

DGJ-section with a switch or switches track relay

The BSA-block push button

The SGA-emergency button

Below in conjunction with accompanying drawing main points of the present invention are done an explanation, in line relay circuit, first station side is connected to the front contact of SJGJF, second station side is connected to the front contact of 25GJ and XJGJF, line relay circuit could not connected when promptly all having car in three sections track circuits in interval and taking, constitute the obturation contact between two stations, when having car to take in any track circuit, line relay all is disconnected, promptly interrupted the obturation contact at two stations, the instruction that the equipment of sening as an envoy to restores and agreement is sent train to the direction interval all can't be given in two stations, therefore also just can not send second train.It can also be seen that from figure the front contact of above-mentioned track circuit is also connected with the SGA contact in the sender unit circuit, purpose also is to be used for handling when limit section has car restoration after a failure.Another foregoing circuit link that inserts in the sender unit circuit, it is interval clearly to be used for confirming that train goes out.With the circuit that 1J and 2J form, confirm the arrival fully of train with the released by checking three sections method, and give the information of the equipment recovery of sening as an envoy to automatically.In addition, in the circuit of GDJ, insert the front contact of section without a switch track relay WGJ and section with a switch or switches track relay DGJ, make block instrument can only train arrive the station track and the trouble section that goes out to clean the street after restore.The state of train occupation interval orbit circuit according to track relay on the control desk at two stations, show respectively AT STATION.

In addition, the receiving end of 25Hz long track circuit is established the identical electronic relay of two covers, just often two electronic relays are worked equally, when a cover electronic relay has fault, the mode of operation of two cover electronic relays is with inconsistent, provide sound equipment and light representation, but do not influence the normal use of long rail blocking system, be i.e. fault-softening (Fail-Softly).When the 25Hz long track circuit had fault, two cover electronic relays will be in full state simultaneously, provide sound equipment and light representation, and long rail blocking system can not use, and promptly reaches fail safe (Fail-Safe).

The action of remaining circuit is identical with former all-relay semi-automatic block system basically.

Claims

1, a kind of method of the long rail blocking system of driving a vehicle, belong to railway signal control system, a long track circuit is set in block section between stations cooperates the electric track circuit of concentrating near section in station, two ends, and combine with former single track all-relay semi-automatic block system, make it to form the driving contact method that to check state of section, the condition with interior three track circuits of district's product that the invention is characterized in is connected in the line relay circuit of semi-automatic block system at two stations respectively, as long as there is train occupation in any location in interval or leaves vehicle, line relay circuit is disconnected, interrupt the normally associate between two station block instruments, prevent that two stations from sending second train to the interval again, avoid taking place train operation accident.

2, a kind of driving long rail blocking system device, comprise the line relay circuit and the track circuit that are provided with between the block instrument at station, interval two ends and two stations, it is characterized in that interval in except that two near the section track circuit, a 25Hz long track circuit also is set, the pick-up contact of interval three track circuit track relays is connected on respectively on the contact circuit in the two station relay rooms, whether in order to there to be car to take between the test zone, only normally blocking is inaccessible with releasing under the section cleared condition.

3, driving long rail blocking system device according to claim 2 is characterized in that the condition that picks up of interval three track circuits is connected with the emergency button contact of station, place block instrument respectively, handles restoration after a failure when being used for car being arranged in the limit section.

4, according to the described driving long rail blocking system of claim 2 device, it is characterized in that in circuit, having designed the inspection link of forming by two relays and carry out released by checking three sections in order to arrival to train, confirm the arrival fully of train automatically.

5, driving long rail blocking system device according to claim 2, it is characterized in that in the rail relay current of former all-relay semi-automatic block system, seal in the front contact of section without a switch and section with a switch or switches track relay, be used for the operation that goes out to clean the street and restore automatically for the block equipment of sening as an envoy to after the trouble section enters the station track fully at train.

6, driving long rail blocking system device according to claim 2 is characterized in that interval each track circuit section, in track relay institute AT STATION, provides corresponding light representation on control desk.

7, driving long rail blocking system device according to claim 2, the receiving end that it is characterized in that the 25Hz long track circuit is established the identical electronic relay of two covers, just often two electronic relays are worked equally, when a cover electronic relay has fault, the mode of operation of two cover electronic relays is with inconsistent, provide sound equipment and light representation, but do not influence the normal use of driving long rail blocking system device, promptly accomplish fault-softening (Fail-softly).

8, driving long rail blocking system device according to claim 2, when it is characterized in that the 25Hz long track circuit has fault, two cover electronic relays will be in full state simultaneously, provide sound equipment and light representation, driving long rail blocking system device can not use, and promptly reaches fail safe (Fail-Safe).