SU1622210A1 - Apparatus for transmitting control signals to locomotive - Google Patents

Abstract

The invention relates to railway automatics devices and can be used in interval train control systems. The purpose of the invention is to increase reliability. This goal is achieved by that when the second train enters the limits of one track circuit, the relay of the first frequency fi receiver is not excited, which does not switch the switching relay 18, which by contact 18.1 does not supply the decoder 21.3 Il.

Description

Fi.e

The invention relates to railway automatics devices and can be used in interval train control systems.

The purpose of the invention is to increase reliability.

FIG. 1 shows a plot of frequency versus the location of the trains f p (S); FIG. 2 is a block diagram of a part of the device located on the way; in fig. 3 is a schematic diagram of a part of a device located on a locomotive.

The device contains rail circuits 1 and 2. To each of which track relays 3 are connected with contact 3.1 and relay 4 with contact 4.1, through which relay 5 with contacts 5.1 and 5.2 and relay 6 with contacts 6.1 and 6.2 are connected. On the supply ends of the rail circuits 1 and 2, sources 7 and 8 are connected, respectively, through resistors 9 and 10, and along the way, pins 11 and 12 are connected, respectively, connected via contacts respectively of relay 5 to generators 13 and 14, and through contacts of relay 6 to generators 15 and 16.

The device also contains relays 17 with contact 17.1, located on the locomotive (Fig. 3), repeater of the first receiver, switching relay 18 with contacts 18.1, the power circuit of which includes contacts of relay 17 and contacts 19 and 20 respectively of the relay of the second and third receivers (not are shown), and a decoder 21, in the power supply circuit of which 18.1 relay 18 is connected. and contacts 22 and 23 relays of the second and third receivers respectively.

The device works as follows.

With train-free rail circuits x 1 and 2, their track relays 3 and 4 are excited, relays 5 and 6 are also excited via the contacts of the track relays, and fi from generators 13 and 15 are fed to both loops 11 and 12. When the train enters the rail circuit 1 the track relay 3 is turned off and by its contact 31 it turns off the relay 5, which contacts 5.1 and 5.2 shuts down the generator 13 and connects the generator 14 and transmits the frequency to the pin 11. The entry of the train on the rail circuit 2 also causes the switching of one frequency to another.

When you appear in the loop another often, you are triggered on the locomotive receiver

tuned to the appropriate frequency

fi. f and fa, and receives power corresponding to the relay at the output of the receiver frequency signals.

For the time of freezing of the relay 17, its contact 17.1 and the contact 20 of the relay relay

the frequency T3 closes the circuit of the lower winding of the relay 18. This relay maintains its state after disconnecting contact 17.1, and in the decoder circuit creates a power supply circuit passing through the closing contact 18.1 and

contact 23.

If the train enters a busy rail circuit, the frequency receiver relay fi is not energized, and relay 18 does not switch its contact in the circuit of the decoder 21 and its

the food is disturbed, i.e. When a second train appears on the track circuit, the device allows to eliminate the dangerous situation of their collision, especially in areas equipped with an automatic blocking

traffic lights.

Claims (1)

Apparatus of the Invention A device for transmitting control signals to a locomotive, comprising loops arranged along a railroad track one of which is connected to one and the other generators, repeaters of the traveling relays, a unit of frequency receivers mounted on the locomotive and connected to the loops, a switching relay and a decoder connected to the power source, which is equipped with the relay is a repeater of the first frequency receiver, the front contact of which is connected in series with the first front contact of another frequency receiver. It is connected to the power supply circuit of one of the windings made by a two-winding switching relay And connected in series with the first by the front contact of the first frequency receiver, the first front contact of the third receiver is connected to the power supply circuit connected oppositely to the first winding of the second winding of the switching relay, the switching contact of which is connected in series with the second front contact of the second frequency receiver and its switching contact connected in series with the second front contact contact of the third frequency receiver, included in the power supply circuit of the decoder, with the first generator connected to the loop three front contacts of the repeater track relay, 5 in parallel with which their rear contacts connected to the second generator are connected. / m Sj $ 2 Phage. 7 ; g