SU1288110A1 - Rail pulsing circuit receiver - Google Patents

Abstract

This invention relates to railway automatics devices aimed at increasing reliability by improving noise immunity. The receiver includes a relay transformer 2, a connected LAPPAP to a rail thread 1, a track relay 3 and an additional track relay 5 connected to transformer 2 via an amplifier 4. Track relays 3 and 5 are connected to a rail string 1 by the rear contacts 6 of the transmitter relay (in the drawing not shown). With the same front contact, this relay connects the code transformer 7 to transmit the automatic locomotive signaling (ALS) signals in the filament 1 of the code messages of the alternating current. The conversion of the impulse operation of relays 3 and 5 into continuous operation takes place with the help of the relays included in the decoder, which also includes capacitors, isolation diodes, inductance coil and the contact terminal of the transmitter relay. 2 Il. LPAPLL (L

Description

The invention relates to railway automation for receiving pulse signals of track circuit freeness (RC) and converting them into a continuous power signal for an executive track relay of control of RC freeness,

The purpose of the invention is to increase the reliability by increasing the noise immunity of the receiver when pulsed DC noise acts in the track circuit.

Figure 1 shows a diagram of signals transmitted on the rail line at the receiving end of the RC; 2 is a schematic diagram of a receiver.

The receiver contains a relay transformer 2 connected to the rail yarn 1 by the primary winding, in series with which the pulse track relay 3 is connected with contact 3.1. The secondary winding of the relay transformer 2 is connected through the amplifier 4 (pulse current relays periodically operate under the influence of DC and AC signals). 3 and 5. With their contacts 3.1 and 5.1 periodically they are connected to the power supply one and the other windings of the coil 14 alternately forming one in one or the other winding, the EMF of self-induction records The appropriate storage capacitors 10 to 11, which are fed from corresponding 1schie relay and 9. In decoder .nachinaets work with, through frontoschy output rectifier) 25 podklyuche- howling contact first pulse 3.1

but an additional impulse track relay 5 with contact 5.1, also polarized with magnetic predominance. By the rear contact 6 of the transmitter relay (not shown), both impulse track relays 3 and 5 are connected to the rail nit 1, the front transformer 6 is connected to rail yarns 1 code parcels of alternating current signals of automatic locomotive signaling system (ALS).

Rails 1 receive a signal (Fig. 1) of the free part of the track consisting of DC pulses, the intervals between which are filled with half-wave of opposite polarity with industrial frequency AC pulses.

During the arrival of pulses, the winding of inductor 14 is wound.

The current from the rail yarns 1 pulsed track relay 5 remains de-energized. Further, the circuit converts the pulse operation of relays 3 and 5 to the continuous operation of relay 8 with contacts 8.1 and 8.2 and additional relay 9 with contacts 9.1 and 9.2 of the rail thread, which are part of the decoder. The decoder contains, in addition, two accumulating capacitors 10 and 11, connected in parallel, respectively, relay 8 and relay 9. Dividing diodes 12 and 13 are included in the circuit 50

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Under the action of EMF self-induction, which develops in the second winding when a direct current flows through it, rises a current of 9, which breaks its rear contact 9.1, which translates both windings of inductor 14 through limiting resistor 16 allows you to limit the electric energy of self-induction emf to the amount necessary to keep p 8 and 9 in the pulled position. At the same time, the relay 9 is fixed to actually release

five

0

NIN of the corresponding relays 8 and 9. Relay 8 and relay 9 are powered by self-induction EMF of coil-14 inductance. At the same time, the rear contact 15 of the transmitter relay is connected to the power supply circuit of the relay 8, and the limiting resistor 16 is inserted into the circuit of the inductor 14

The receiver works as follows.

Under the action of DC and AC signals, pulsed traveling relays 3 and 5 periodically operate. Their contacts 3.1 and 5.1 periodically connect one power source to the power source and the other windings of coil 14 alternately forming one or another winding EMF of self-induction records the corresponding storage capacitors 10 to 11, from which the corresponding relays B are fed and 9. The operation of the decoder begins with the fact that through the front

Relay 3 is the positive-pole of the power source is supplied to one of the windings of the inductor 14, then through the rear contact 5.1 of the second pulsed traveling relay 5 and the rear contacts 9.1 and 8.1 of relay 9 and 8 the negative pole of the power source is fed. When the EMF self-induction circuit is open, the windings of the coil 14 charge the first capacitor 10, and the relay 8 becomes energized and closes its front contacts 8.1 and 8.2. The power supply of the circuit allows to be done through the contact terminal 9.1 of the additional relay 9, In the first interval between working pulses of one type of current triggered track relay 5, which closes its contact 5.1, through which power is supplied to the second

 winding coil 14 inductance.

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Under the action of self-induced EMF, which develops in the second winding when the direct current flows through it, rises the current of the relay 9, which breaks its rear contact 9.1, which translates the melting of both inductance coil 14 through the limiting resistor 16, which allows It is not necessary to limit the EMF of self-induction to the amount necessary to keep the relays 8 and 9 in the tightened position. At the same time, the actual release of the relay 9 is fixed.

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In the case of the appearance of a pulsed DC noise line on an occupied rail line, one of the track relays will operate, for example, the first pulse relay 3, but since the second pulse track relay 5 remains de-energized, the additional relay 9 will also not start (so it does not close the front contact 5.1 of the second pulse track relay). This testifies to the actual occupation of the track section and the conditions for the safety of train traffic, which are observed.

Claims (1)

Invention Formula A pulsed rail circuit receiver containing a pulsed path relay and a code transformer, connected respectively via the rear and front contacts of a rail line transmitter relay, a rail line idleness control relay, parallel to the winding of which a storage capacitor is connected and a circuit consisting of series-connected trans rear contacts - a switching relay and one of the separation diodes and an inductive coil five 0 five 0 104 connected to the power source through the front contact of the pulse track relay, so that, in order to increase reliability by increasing the noise immunity of the reception when operating in the rail circuit of the DC pulsed noise , it is supplied with additional relays of control of the freeness of the rail line and a pulse nyteBbw relay, a relay transformer, with the secondary winding of which the latter is connected, and the primary is connected in series with the winding of the first pulse track relay, The inductance coil is made with an additional winding counter-connected first and connected to the power source through the plug and front contacts of the first and additional pulse track relays, respectively, and parallel connected front contacts of the first relay of the rail line idleness control, in series with one of which rear contact of the additional relay for monitoring the freeness of the rail line parallel to the winding of which an additional storage cone is connected nsator f (/ g.2 VNII1M Order 7763/18 Circulation 478 Subscription Random polygons pr-tie, Uzhgorod, st. Project, 4