SU378336A1 - DEVICE FOR RECEPTION AND DECISION OF SIGNALS - Google Patents

Description

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The invention relates to the devices of automation and telemechanics in railway transport, in particular, to devices of automatic acoustic signaling.

There are known devices for receiving H decrypted signals of frequency automatic locomotive sialization, containing several pre-tuned channels, full channels, in series connecting certain types of channels, advanced, popular, noporojBoro, and one way of transmitting channels, advanced transponder, noporojBoro, and one way of transmitting. the output of which is connected via an amplitude detector in parallel connected — receiving relays n a capacitor; -reverse follower relays connected to the power source through one of the following connected contacts of the receiving relays; a signal relay, also connected to a nttochnnku pietnn, through series-connected rear contact repeater of receiving relays and front contacts. receiving relays, Prnchem channel inputs are connected in series and connected to the “receiving locomotive coils.

The aim of the invention is protection against impulse noise of a short duration, but with a level exceeding the nominal current of the receiver.

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This is achieved by the fact that the amplitude detector is made on a cold cathode thyratron. Prn this to the outputs of the amplitude de. The tector is connected to a parallel two circuits, 5 one of which consists of not the front contact of the return shaft of the receiving relays. Tiratron, capacitor, resistor shunted, front contact, repeater, receiving relays; other - from the rear contact of the reverse -aaadrator of the receiving relays, diodes, winding nets. Parallel to the series-connected capacitor and the rear contact of the reverse follower, the relay relays are connected to rezn15 crop.

The drawing shows the block diagram of the device

Each channel is formed by an inlet PL filter, a preparatory amplifier UE

0 threshold element with a threshold "thinner PE. the PF intermediate filter, a US resonant amplifier, “and the INPUT of which, through an ampl detector, an intelligent detector / lAf, are connected in parallel

5 relays P1 and P2 and capacitor C /, reverse relay follower. Receiver relays connected to the power source through a connected back connected receiving relay contacts; signal-suppressive relay

o SIR, also connected to a source of li-.

Chaine through the post-aggression connection you / yuoy kontykt Reverse repeater RPZSM1 / YX relay and front contacts of the receiving relay P / and P2.

The amplitude detector AM is made on a cold cathode T-Tirole. At the same time, two circuits are connected in parallel to the output of the amplitude detector AA1, one of which consists of the front contact of the return receiver (receiver, tiraT), it is T, the capacitor C2, which is bounded by the resistor R} and the front contact on the return monitor of the receive relays. The other circuit consists of the rear contact of the reverse repeater of the receiving relays, the D1 and D2 diodes and the winding 1 of the transformer Tr. Parallel-successively connected to the capacitor C2 on the rear contact. Hof-o repeater RZ receiving relays P1 n Ya5 connected resistor 5,

llpsj no interference in the case of a continuous flow along a rail circuit of a current with a level exceeding the current sensitivity of the receiver coinciding with the frequency of the channel, the signal is received by the receiver and the voltage at the output of the resonant amplifier is understood. In this case, the capacitor C2 is charged along the circuit: windings / a and / i trans-nif, f) Tp puMtiop R, diode D5 and fronroBOii contact reverse indicator received a relay. When naryin on 4 ondensat.ore C2, p; If a thyratron is broken down through a tyratron, a sufficient quantity of cells and receiver relays P and P2 will flow, which, by means of their rear contacts, break the lN circuit of the reverse follower of the RZ relay.

The reverse repeater of the IR irradiating relays is de-energized, but the receiving relays fl, P2 remain UNDER raKOAt through the rear contact of the rear repeater t of the receiving relays ,. diodes MJ and D2 and the winding / i of the transformer G / l Equipment; not with the I / I transformer Tp should be sufficient for the operation of the relay Р / and Р2. At this point, capacitor C2 is discharged through the cyclopoy contact. Repeater RZ receiving relays P / n RZ on a resistor 2, Srabatypakne pr-ihnyh relays H de-energizing the reverse Repeater RZ corresponds to the reception of the code signal of the dash receiver. Capacitor C / provides a large deceleration for releasing the main relay and necessary for reliable switching of pinto contacts | ) It is an M receptionist.

If in a rail circuit there are impulses of a pulsed nature occurring at the frequency of the receiver, with a level or higher than current; puvstnptelyyustn, the output is a resonance amplifier. CG also arises on; Prge e, |

from which capacitor C2 starts charging. However, during the pulse time, it cannot charge up to the voltage of the thyratron G, and accordingly the receiving relays PI and Pa cannot work. If the interference goes uninterruptedly, then, during the accepted estimated time, the codensor C2 can charge up to the voltage of the Tirathron T and work the received relays are L n P3, but the winding I of the transformer Tp for further retention of the Koreas receiving relays PI and P after transferring the contacts of the reverse repeater of the receiving relays will have insufficient voltage and the circuit will return to its original state, i.e. -. Short-term | triggered triggers of the PI and Pa relays after a long period of time does not morys respond and the status of the SIR alarm relay.

The subject of the invention

A device for receiving and deciphering signals of an automatic JTOKO motif signaling system, containing several receiver-decrypting caiales made from. and the matching of the input filter, the preview. an amplifier, a threshold element with an amplitude limiter, an intermittent filter, and a resonant amplifier, the output of which is connected via an amplitude detector to parallel-connected receiving relays and a capacitor; reverse follower. receiving relays connected to the power supply via a series of rear connection receiving relays; The signal actuating relay is also connected to the power source through the series-connected rear contact of the reverse repeater of the receiving relays "front contacts of the receiving relays, the channel inputs connected in series and connected to the receiving coils, in order to protect against impulse noise of short duration, but with a level exceeding the nominal current sensitivity of the detector, the amplitude detector is made with a cold cathode tiratron, with the outputs of the amplitude of the tector is connected in parallel two circuits, one of which consists of a front-facing iiOHacta of a reverse repeater of receiving relays, a thyratron, a capacitor, shunted by a resistor, a front contact of an (atomic repeater of receiving relays, the other of a rear contact of a reverse repeater of receiving relays, diodes, a transformer winding, and parallel in series with the solenoid capacitor “to the rear contact of the reverse repeater of the receiving relays, a resistor is connected.