JPS61188272A - Block instrument - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a blocking device suitable for railways with single track sections and low traffic volume.

[Conventional technology]

Conventionally, a so-called tokenless system has been generally used as a blocking device for single-track section railways, but in this case, a departure signal and a logic circuit for control are used, as well as
Two track circuits, one closed circuit type and the other closed circuit type, are used to detect vehicles, thereby detecting when a vehicle enters or exits a single track section.

[Problem that the invention seeks to solve]

However, the tokenless system requires a separate signal safety device for the station premises, and requires two track circuits, and for single-track sections with low traffic volume, the configuration is difficult to achieve due to the need for a multi-fiber structure, making it difficult to invest in equipment. This is causing an uneconomical problem.

[Means for solving problems]

In order to solve the above-mentioned problem, the present invention is constructed by the following means.

That is, a signal installed on the side of the station in the direction of vehicle travel, a detection means installed on the side of the station in the direction of vehicle travel for locally detecting the passing of a vehicle on the track, and a signal between the station and an adjacent station on the side of the vehicle travel direction. In response to the operation of this switch, a traffic signal is displayed when the adjacent station via the transmission path is in an unobstructed state. and a logic section that causes the traffic light to display a stopped state in response to the detection of a vehicle by the detection means.

[Effect]

Therefore, if you operate the switch when starting the vehicle,
Assuming that the section on the adjacent station side is not blocked, the traffic signal will indicate a progress signal, and when the vehicle departs in response to this, and the detection means detects that the track is passing, the signal will indicate a stop signal. and l), the setting of the closed state is automatically performed.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to figures showing examples.

Figure 2 is a diagram showing the state of equipment equipment. Station 8TA and STB are installed on track 1 of the single track section, and each of these has a main line IA*IB and a side line 2 + 2B, and each The direction of travel is determined by the arrow, and the switch between the track 1 and the side tracks 2A + 2B uses a spring point or the like to fix the direction of travel.

Therefore, the vehicles omitted in the diagram are station STA, s'r
Each vehicle enters in the direction of the arrow B and travels along track 1, but at stations 8TA and s'rB, there are
There are traffic lights 81 to S4 each showing the second position, and
In the vicinity of these and near the entrance of the track 1, mechanical or electromagnetic type treadles T1 to T4 are respectively provided as detection means, and these are used to detect the passage of a vehicle on the track. .

FIG. 1 is a block diagram of the electrical configuration.
Information transmission lines (hereinafter referred to as transmission lines) t, A-Lc are provided for each of the adjacent stations on the right side of the figure on the diagram, and a pair of tracks between each station, and a transmitting/receiving section for each station STA S.R.A.

Receives information via 8RB and sends it to logic unit LG.
A + LGB, as well as logic parts LGA, L
The information from the GB is transmitted via the transmitter/receiver unit SRA I SRB, and the logic unit LGA for each station STA I STB.

For LGB, push button type switches PB are used to set the detection outputs of the treadles T1 to T4 and the departure of the vehicle.
The operation outputs of L + PBRA + PBt and it + PBRB are given, and the optical logic unit L is operated according to these outputs.
GA+LGB operates, each controlling the traffic lights in the traveling direction according to the state of the adjacent station in the traveling direction, and also controlling the similar traffic lights according to the detection outputs of the treadles T1 to T4.

FIG. 3 is a circuit diagram of the transmitter/receiver section SRA and the logic section LGA, (4) shows the transmission line LA side, (B) shows the transmission line LB side, and FIG. 4 shows the transmitter/receiver section 8RB' and the logic section LGB. In the circuit diagram, (4) shows the transmission line LB side, and (B) shows the transmission line Lc side.
B and logic sections LGA and LGB are respectively provided facing two-way adjacent stations, and there is a relationship between (A) and (B), respectively.

Fig. 5 is a relay operation diagram mainly showing the operating conditions of Fig. 3 (03) and Fig. 4 (4).
There are vehicles on the main line 1m and siding track 2A of station 8TA, and two vehicles on the siding train leave for station STB and return to siding track 2B of station STB.
The example shows a case where the train departs from the side track 2B of the station STB to the right side in the figure after arriving at the station STB.

That is, initially, from power supply BA to cA in FIG. 3(B), contacts 1LFR1, 1PCR1, polarized relay I FNR
, I FRR.

Line LB of transmission line LB, and polarized relays 2FNR, 2FRR, and contacts 2PCR3, 2RFR in Fig. 4 (1).
3. Line LB2 and contact point IPCR of Fig. 3 ■)
Current flows through 2, 1LFR2, relays IFNR and 2FNR are operating, and in Figure 3 (B), relay 1FLR, latching type relay IFR
, slow recovery type relays ISR and IARR are operating,
In FIG. 4, the latching type relay 2FR is in operation, and in this state, when the vehicle is to depart, the switch PBRA is operated to set the departure.

Therefore, if the switch PBRA in FIG. 3(B) is turned on at time 11 in FIG. It becomes a manifestation.

That is, when contact PBR'A3 turns on, the slow recovery type relay I PCR operates via the operating contact 1ARRl, and when the contact PBRA4 turns on, the slow recovery relay I PCR operates via the operating contact 1ARR3. Type relay IXR operates, and according to the operation of contacts IPCR1 and IPCR2, the polarity of the power supply BA+CA applied to line LBt + LB2 is reversed, relays IFNR and 2FNR are restored, and at the same time relays IFRR and 2FRR operate, and contact 1
When relay I ARR is restored after a predetermined time in response to PCR4 being turned off, relay I
R is restored after about 2 seconds.

On the other hand, in FIG. 4(A), contact 2 FRRs is turned on due to the operation of relay 2FRH, and contact 28 R is turned on.
4, the slow recovery type relay 2XR operates, and the contact 2
Self-holding is performed by RFRe and self-contact 2XR4, contact 2XRa is turned on, relay 28R is operated via contact 2HR5, self-holding is performed, and the starting locked state is memorized.

Next, in Fig. 3 03), in response to the restoration of relay IARR, contact I ARR1 is turned off, and when relay IPCB is restored after a certain period of time, contacts IPCIh and IPCR are turned off.
2, the applied polarity of the power supplies BA and CA is returned to the initial state, and as a result, the relays IFNR and 2FNR operate again, and the relays IFRR and 2FRR are restored, and in Fig. 4, the contact 2FNR1 is turned on. According to the contacts 2HR2+ 2SR1+ 2FNR1+ 2L
YR4+Relay 2FR.

The relay 2FR is energized through the contact 2 LYR, and in order to restore it, the contact 2 FR1 is restored.
Relay 2RFR operates via LYR2, contact 2RFR
t.

2 When RFR2 is turned on, connect the power supplies BB and cB to the line L.
If the power supply BA+CA is applied to B1+LB2 with the same polarity, the current on the line "Bl+LB2" will be canceled out, and the relays IFNR and 2FNR will be restored. In this case,
Relays 1FRR and 2FRR also maintain the restored state.

Further, when contact 2RFR6 is turned off in accordance with the operation of relay 2RFH, relay 2XR is disconnected from the self-holding route and restored after about 2 seconds.

On the other hand, in FIG. 3(B), when relay 1XR is restored at time t2 in FIG. In order to close the short-circuit route through the circuit and to disconnect the stain sources BA and C by turning off the contacts 1LFR1 and ILFR2, power is applied to the line LB1 r LB2 from the power source BB+CB in Fig. 4 (4). , relays IFRR and 2FRR operate.

In addition, in response to contact 1LFR4 turning on, relay IRYR operates via contact PBRAI, which is still on, and the self-contact IRYR1 and contact IH, which turns on a little later, operate.
Self-holding is performed by R+, and the contacts IRYRs, I
RYRa is turned off, and contacts IRYR,,[RY
To turn on R5, connect 1HR from power supply BA to cA.
211SR1+IFRR1, IRYR4, relay IFR
, energization is applied through contact 1RYR5, relay IFR is restored and the closed state is released, and the relay IHR is activated by the restoration of contact 1FR2, self-holding by self-contact 1HR3, and by turning on contact IHR4. Activate the slow recovery type relay IH8R, and restore the relay ISR by turning off the contact I HRs, and turn off the contact I HR.
In response to the operation of e, the indicator light R (red) of the traffic light S2 is turned off and the indicator light G is turned on to indicate the progress.

Therefore, if the station STB side is in a non-blocked state, relay IFRR operates again, relay IFR is restored accordingly, relay IHR is operated, and a progress indication is performed.

In addition, if one person on the main line at the station STA does not have a vehicle on the line,
In response to the operation of the switch PBRA, operations from time t2 onwards are performed in the same manner.

According to the progress indication of the traffic signal S2, a vehicle departs from the siding track 2A of the station STA at time t3 in FIG. 5 and passes through the tread layer T2 of the track 1. The tread layer T2 remains on while the vehicle passes, and the relay 10TR operates in response to this, and the contact 10TR
, the relay 1HR is restored and the signal S is turned off.
The indicator light G of No. 2 is turned off and the indicator light R is turned on, and the section is closed as a stop indication, and the contact point I HRs
Restore the serial IRYR by turning it off.

Therefore, in response to the detection of the vehicle by the tread layer T3,
A stop sign is made to prevent the following vehicle from proceeding.

The vehicle travels on track 1 and reaches station S at time t4 in Figure 5.
When the vehicle enters the TB premises and passes through the treadle T3, the same detection as described above is performed, and the treadle T3 shown in FIG. 4 (4) is turned on, and the relay 20TR operates to turn on the contact 20TRs Depending on the contact 2FRs
, Slow recovery type relay 2 ARR via 2 PCR4
operates and performs self-holding by the self-contact 2ARR2, and at time 1 in FIG. Set the state as before.

Next, the vehicle arrived at the siding track 2B of station 8TB and moved to the 4th track.
If the switch PBRB in Figure (6) is operated, the same operation as after time t1 or t2 in Figure 5 is performed, and the traffic light S
When the vehicle departs at time t5 in FIG. 5 in response to the progress indicator 4, this is detected by the treadle T4 in the same manner as described above, and the treadle T4 in FIG. 4(B) is turned on. relay 10TR operates according to the fourth
In order to turn on the contact [OTR1° in Figure (4), the slow recovery type relay 2PCB operates, turning off the contact 2 PCR4 and restoring the relay 2 ARR.
By the operation of Rt and 2 PCR2, the stain sources BB and CB are applied to the lines LB1+UB2 with the opposite polarity to the previous ones, and the relays 2FRR and IFRR are restored, and the relay 2FNR is restored.
, operate IFNR.

Then, in Fig. 3 (B), the relay IXR is activated by turning on the contact point [FNR3, self-holding is performed by the self-contact lXR4, and the operation point IXRs is turned on to activate the relay ISR. Moreover, the self-holding is performed by the self-contact l5R3.

Then, in response to the completion of the vehicle passing, when treadle T4 in FIG. 4(B) is turned off, relay 10TR is restored, and as contact point 10TR in FIG. 4(4) is turned off, relay 2PCB is turned off. has recovered and contact 2 PCR1.

In order to restore the applied polarity of power supply BB+CB by restoring 2PCR2, relays 2FNR and IFNR are restored, and
Relays 2FRR and IFRR operate, and in Fig. 3 (B), contact 1FRR+, which is turned on, is energized through contact 1RYR3, relay IFR, and similar contact 1RYR6, which are in contact with Zion for recovery, and the relay is activated. IFR operates and holds contact 1FR, and turns on contact IR.
Y'R21, relay 1LFR, operating contact 1XR2 route [operate LFR, self-contact 1L]
Self-holding is performed by FR and operating contact j FNR1. .

When relay j LFR is activated, contact 1LFR1
゜1LFR2 connects the stain source B + CA to the power supply nB, c, .
Since the voltage is applied with the same polarity to the line LB 1 +
The current of LB 2 is canceled and the relay IFRR, 2FR
At the same time that R is restored, relay IXR starts restoration by turning off contact j LFR, and is restored after about 2 seas.

Therefore, in Fig. i ω), relays 1LFR, IF
R.

When the ISR is in operation, in Figure 4 (4), relay 2
RFR and 2SR are in the operating state, and each of the other relays i is in the recovery state, and a steady state is set.

In addition, when the vehicle advances from station STB to STA, the same operation is performed between each circuit between Figure 4 and Figure 3 (03) in response to the operation of the switch PBLB in Figure 4,
When the control of signal S3 is switched off, and when proceeding from station STA to the left side in the diagram, the circuit shown in Figure 3 (4) is used.
When proceeding from station STB to the left side of the diagram, please refer to Figure 4 (B).
The same operation is carried out in the circuits of 'transmission line LA+Li
This is done based on information transmission and reception with neighboring stations via O.
Traffic lights S, , S4 are each controlled.

Therefore, it is recommended that each station STA'l STB be provided with signals S1 to S4 for departure commands and treadles T1 to T4 in the direction in which vehicles are traveling, in order to maintain sufficient security for vehicle operation. Thus, a closure device with a simple and inexpensive configuration is realized.

In addition, since the traffic lights 61 to S4 can be installed near the advancing side of the station STA; STH, low brightness display is sufficient, the configuration of the logic parts LGA and LGB is simple, and a low-power power source can be generally applied. However, it is possible to use solar cells and storage batteries in combination.

However, an open circuit vehicle detection device or the like may be used instead of the treadles Tl to T4, and any means can be applied as long as it locally detects the passing of a vehicle.
As A#LO, in addition to a pair of lines, a wireless line and a corresponding transmitting/receiving unit SRA I SRB can be used as long as it can transmit at least three logical values.

In addition, the logic section LGA I LGB may be configured not only by relays but also by highly reliable semiconductor elements, or by a combination of semiconductor elements and relays. If there is only one direction, a traffic light and a detection means are provided only in the direction of travel, and the logic section LG is configured accordingly.
Various modifications are possible, such as just determining the configuration of A I LGB.

〔Effect of the invention〕

As is clear from the above explanation, according to the present invention, a blocking device for single-track sections with a simple and inexpensive configuration is realized, and sufficient safety can be obtained, so that As a result, the economic efficiency of capital investment is improved, and a remarkable effect can be obtained on single-track section railways.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a block diagram of the electrical configuration, Fig. 2 is a diagram showing the equipment status of the equipment, Figs. 3 and 4 are circuit diagrams of the transmitting/receiving section and the logic section, FIG. 5 is a relay operation diagram. 1...Trajectory, IA+1a...Main line, 2AI2
B first...side track, STA + STB fist...station, Sl
To S4 - Traffic light, T1 to T4... Treadle (detection means), LA-LO... Transmission line (information transmission line), LGA + LGB... Logic section, PBLA. PBRA r pBLB+ PBRB -・Written・Switch.

Claims (1)

[Claims] A signal installed on the side of the station in the direction of vehicle travel, a detection means for locally detecting passage of a vehicle on the track, provided on the side of the station in the direction of vehicle travel, and between the station and an adjacent station on the side of the vehicle travel direction. an information transmission path provided, a switch provided at the station for setting the departure of a vehicle, and a control device that responds to the operation of the switch and causes the signal to proceed when the adjacent station via the transmission path is in a non-obstructed state. and a logic unit that causes the traffic light to display a stopped signal in response to detection of a vehicle by the detection means.