JPH0622362B2 - Automatic train stop device - Google Patents

Description

TECHNICAL FIELD The present invention relates to an ATS-S type automatic train stop device (hereinafter referred to as ATS).
-S device).

2. Description of the Related Art Conventionally known ATS-S devices of this type are provided with a ground element 1 in front of a traffic signal Sig as shown in FIG. 4, and when the traffic signal Sig is in a stopped state, a resonance circuit of 13 OKHz is provided. A train TR ₁ passing through the train affects the train top and the oscillation frequency of the oscillator circuit of the on-board device consisting of the train top and the receiver is changed from 105 Hz
Change to 130KHz, and the traffic signal Sig in front of the vehicle above the ground
Indicates that it is a stop sign, and also sounds the alarm bell. The function that handles the confirmation push button by performing the regular brake operation by confirming that this alarm bell sounds and the traffic signal Sig is the stop indication is called "confirmation treatment". The child 1 is not only the position considering the deceleration distance due to the emergency brake from the traffic light Sig, but also the distance that the traveling distance is added to the preset time (for example, 5 seconds) for confirmation handling after the alarm bell rings. The position is far away from the traffic light Sig.

If the confirmation treatment is performed within the set time, the train TR ₁ is operated in a normal state without being applied with the emergency brake and is stopped at the stop position before the traffic signal Sig, as shown by the dotted line in FIG. On the other hand, if the confirmation treatment is not performed within the set time, the train TR ₁ will operate the emergency brake after the set time as shown by the solid line in FIG.
It is stopped at the stop position before ig.

Since the above-mentioned operation is generally known in the related art and is brought about by the conventional portion (other than the portion surrounded by the chain line) of the circuit diagram of FIG. 2 which will be described in the embodiment to be described later, that portion will be briefly described below. I will explain.

5 is a train car, 6 is a receiver, and this receiver 6 is an oscillation circuit,
An electronic circuit 7 having an amplifier circuit and the like, and various relays MR, MPR, UR, AC connected to the circuit through conductors.
It is composed of R. 10 is an alarm device consisting of an alarm bell,
11 is an indicator consisting of red and white lights, 12 is a confirmation push button, 13
Is a return switch, 14 is an automatic brake, and these are connected to the receiver 6 by a conductor through a connection box (not shown), and are operated by a command from the receiver 6. That is, the relay MR is normally driven by the frequency that normally oscillates from the oscillation circuit in the electronic circuit 7 of the receiver 6, for example, 105 KHz.
(Main relay) is energized, and relay MPR (reaction relay) is excited by its energizing contact, and relay MPR further turns on the white light of indicator 11 by its energizing contact, and relay UR (hour relay) Is excited.

As the train TR ₁ equipped with the receiver 6 passes the ground element 1 in the alarm state, the ground element 1 resonates at a frequency of 13 OKHz.
When the car core 5 and the car core 5 are electromagnetically coupled, the oscillation circuit changes from 105 KHz to 13
The frequency is changed to 0 KHz, the excitation of the relay MR in the receiver 6 is cut off, the relay MR drops, and the current to the relay MPR is cut off, so the relay MPR drops. As a result, the white light is turned off, and the bell of the alarm device is conditioned by the fall contact of the newly formed relay MPR, and at the same time, the red light of the display device is turned on. Further, since the current to the relay UR is cut off due to the fall of the relay MPR, the relay UR is kept in the elevated state for a certain period of time due to the discharge current of the capacitors connected in parallel.

If the crew operates the brakes while the relay UR continues to be lifted (or the steering wheel is in the "weight" position once the brakes have been operated), press the confirmation pushbutton 12 to check the relay ACR (confirmation). The relay) lifts the relay MR and restores the original state.

However, if the relay UR falls out of time, the solenoid valve works and releases the air in the control pipe to the atmosphere, so that the emergency brake is automatically applied. The time for which the relay UR is held in the up state is a margin time for the crew to confirm and handle, and is usually set to about 5 seconds.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention By the way, in the conventional ATS-S device, the traffic signal S
The train TR ₁ that stopped at the stop before ig
As shown by the chain line in the figure, no warning is given even if the vehicle departs in the direction of the stop signal traffic light Sig.

In addition, a ground element that serves as a resonance circuit of 130 KHz may be provided at a position between the stop position of the train TR ₁ before the stop signal Sig and the stop signal Sig when the stop signal Sig is displayed, In this case, the train TR ₁ is stopped
Even if the vehicle departs in the g direction by mistake, the time until it stops due to the emergency brake is after the set time preset for confirmation handling after passing this ground element.

Therefore, in either case, the train T
There was a risk of R ₁ invading the inside of the traffic signal Sig that was stopped, which was a security problem.

Therefore, the present invention solves the above-mentioned conventional problems, and when an incorrect departure is made, the alarm bell and the emergency brake can be immediately activated to stop the train TR _1.
It is intended to provide an S device.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention is directed to a case where a traffic signal Sig is present at a position between a stop position of a train TR ₁ and a traffic signal Sig as shown in FIGS. , A second resonance frequency different from the resonance frequency of the ground element 1 toward the vehicle
When the train TR ₁ having the ground element 2 installed and stopped as shown by the chain line in FIG. ₁ erroneously starts in the direction of the stop signal Sin, the vehicle affected by the resonance frequency from the second ground element 2. It is characterized in that the receiver 6 is provided with a relay ECR for operating the emergency brake simultaneously with the operation of the alarm bell through the upper arm.

Operation Even if the train TR ₁ stopped at the stop position in front of the traffic light Sig due to the above-mentioned configuration makes an erroneous departure, as the wrong train passes by the second ground element 2, the train top electromagnetically coupled to the second ground element 2 The receiver 6 is tuned to the resonance frequency of the second ground element 2 via 5, and the relay ECR provided in the receiver 6 operates the alarm bell and the emergency brake based on this tuned frequency. This causes train TR ₁ to stop immediately.

Embodiments FIGS. 1 to 3 show an embodiment of the present invention, and in the circuit diagram of the on-vehicle apparatus shown in FIG. 2, the portions different from the conventional ones are only surrounded by a chain line, and the other portions are the same as the conventional ones. It has become.

A relay ECR provided in the receiver 6 in FIG.
Is provided through a diode 22 on a lead wire 21 connected to the electronic circuit 7 in parallel with the relay MR.
Wire 23 connected to the electronic circuit 7 in parallel with the output side of the wire and the wire 21
A diode 24, a drop contact of the relay ACR, and a lift contact of the relay ECR are provided on the top. The relay E is provided on the lead wire 25 connected to the electronic circuit 7 in parallel with the lead wire 21.
Drop contacts for the CBR and the relay ECR are provided.
A relay contact of the relay ECBR is provided on the conductor 26 connected to the electronic circuit 7 in parallel with the conductor 25 and provided with the relay MPR. Further, a relay ECBR is connected to the electronic circuit 7 in parallel with the conductor 26 and is provided on the conductor 28 connecting the output side and the input side of the relay UR of the conductor 27 provided with the relay UR.
Is equipped with contact points. Further, a conductor 29 connected to the electronic circuit 7 in parallel with the conductor 27 and provided with a relay ACR
A rising contact of the relay ECBR is provided on the lead wire 30 that connects the pressing contact of the confirmation push button 12 with the above.

In this embodiment, as the train TR ₁ stopped at the stop position before the traffic signal Sig starts erroneously and passes through the second ground element 2, the second ground element 2 having a frequency of 123 KHz and the car top element 5 are electromagnetically coupled. Then, the oscillation frequency of the receiver 6 changes from 105 KHz to the second
The resonance frequency of the ground element 2 is changed to 123 KHz. Based on this frequency changed, the relay ECR is
When R falls, it rises and relay ECR drops simultaneously. When relay ECBR falls, relay EC
By disconnecting the capacitor connected in parallel to the relay UR at the contact point of the BR, the alarm bell is conditioned by the relay MR and the relay MPR that drops simultaneously with the drop of the relay ECBR, and at the same time the relay UR is also dropped. Thus, the emergency brake is operated almost simultaneously (see FIG. 3).

EFFECTS OF THE INVENTION Since the present invention is configured as described above, ATS-S
Even if a train that stopped at the stop before the traffic light in the equipment erroneously started in the direction of the traffic light, the alarm bell and the emergency brake were activated at the same time as the train passed the second ground element, and the train erroneously started. It is possible to reliably prevent the train from entering the inside of the traffic signal indicating the stop, and it is possible to provide an extremely safe security system.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an embodiment of the present invention, FIG. 2 is a circuit diagram showing an on-board device and the like in the same as above by electric connection, and FIG. 3 is a time chart for explaining the action due to the erroneous departure in the above. ,
FIG. 4 is a schematic view of a conventional example, FIG. 5 (A) is a time chart for explaining the action when confirmation treatment is performed within a set time, and FIG. 4 (B) is a time chart when confirmation treatment is not performed. It is a time chart for explaining an operation. 1 ... ground child, 2 ... second ground child, 5 ... car child, 6 ...
… Receiver, 7 …… Electronic circuit, 10 …… Alarm, 11 …… Display, 12 …… Confirmation push button, 13 …… Reset switch, 14 ……
Automatic brake, TR ₁ , TR ₂ …… Train, Sig …… Traffic light

Claims (1)

[Claims] 1. A position to which a deceleration distance due to an emergency brake is added from a traffic light, and a distance traveled within a preset time for manual operation for confirming that the traffic light is a stop signal is added. The ground element that is installed and exerts a predetermined resonance frequency on the vehicle, and the resonance frequency from the ground element that is installed on the vehicle and when the traffic signal is stopped A warning bell and a receiver for activating the emergency brake via the train car that is affected by, if the manual operation for confirmation is not performed within the set time, the receiver is set for the set time. In the automatic train stop device that later activates the emergency brake to stop the train at the stop position before the traffic light, in the position between the stop position of the train and the traffic light, when the traffic light shows the stop, When a second ground element that gives an influence of a resonance frequency different from the resonance frequency of the ground element is installed and the stopped train erroneously departs in the direction of the stop signal, the resonance frequency from the second ground element An automatic train stop device characterized in that the receiver is provided with a relay ECR for simultaneously operating the alarm bell and operating the emergency brake via the train car affected by the above.