SU583016A1 - Code broadcasting device - Google Patents

Description

one

The invention relates to railway automation and can be used to transmit code signals when performing broadcasting fixes at level crossings and in applying automatic signaling to station tracks.

A known device for translating codes, which contains a nute relay with a filter connected to the output of one rail circuit, a power source, a track transformer, which is secondary to the winding of which through perepe contacts. The repeater of the control relay is connected to the input of another track circuit, a switching element connected between the power source and the primary winding of the track 15 transformer with a counter relay L.

Transmission of code signals in the local device is carried out in series, as a result of which 20 significant distortions occur in {) the changed parameters of the code signals, which is one of the main causes of failures in operation, for example, automatic locomotive signaling. This reduces the safety

train traffic and railway capacity.

1 in the image, the shadow is an increase in the reliability of the device operation.

The goal is achieved by the fact that the device is equipped with a delay element with a driver and an output signal inverter, the input of which is connected to a power source via a track relay contact, and the output with one of the inputs of the control unit of the switching element directly and with another input through a driver and an inverter.

The drawing shows a diagram of a device for translating codes.

The device contains a filter 1, the input of which is connected to one rail circuit, and the output to the track relay 2 with contact 2.1. The signal delay element 3 is connected via pin 2.1 to the power supply of the pulse 4 OUTPUT shaper connected to the inverter 5, and to the control unit 6 with: a switching element 7. The control relay 8 is connected to the primary winding of the nut transformer 9, the secondary winding

Kuiuiioro through pins 10 and 11 slowly M .-; iit. The following repeater is a podi1yu-1 control relay to the input of another track circuit. The device works as follows, lipa ref; code signal quenching (impulse from a) chorez filter 1 to track relay 2 closes its 2.1 contact, which supplies a single stenal to the input element

3 delays.

A 1di signal at the output of this element appears simultaneously with the arrival of a loudspeaker at its input, and the switching off of the output s1 will occur in 10 ~ 80 ms after the end of the code pulse. A single signal from the output of the element 3 is fed to the first input of the switching control unit 6. element 7 and to the input of the imager 4 output output of a duration of 0.15 s,

When a signal arrives at the input of the imaging unit 4, the signal at its output is turned off and, through the inverter 5, a single signal also arrives at the second input of the control unit 6. Block pack}: Station 6 gives a signal to open the switching element 7, and an alternating current enters the track circuit,

As soon as the end: code pulse, first-hour; the second relay 2 opens its contact 2.1, As a result, the input signal from delay element 3 is turned off, from which a single signal is turned off after the end of the code pulse, the control unit 6 removes the control link and the switching element 7 closes. The transfer of the first pulse to the echom ends,

After the single signal is turned off by the delay element 3, the output of the sensor is n 4 but impulses O, 15 s and the input of the block 6 is controlled to receive a zero signal for 0.15 s, ne | l: key 11 the element 7 is closed during this time and a track with a duration of 0.15 s enters the track circuit. If the next HNfiiyjibc enters the first input of control unit 6, then the control signal does not run at the output, since the second input is still continued: 1, is zero, and switching, or does not open. Once the impulse has finished

4 / immlnhggyyyu 0.15 s, provided that n l, -plump of BTuiJOio pulse code, comes from k) pore (m luchuch: 1o element 7 and the transmission of the second pulse code.

In the future, the work of the proposed yu-i solution is similar.

When transmitting codes in time with the pulses, the control relay 8 begins to work. Through its contacts, a slow-acting repeater turns on (not shown), which connects a track transformer to the rail line with its contacts 10.1 and 10.2. The control relay 8 also provides monitoring of the operation of the switching element 7 and blocks 3-6 for correcting the duration of the code signals, in case of damage to these elements, the slow acting repeater of the control relay 8 and contacts 10 and 10.2 turn off the equipment of the feed end from the rail line. This eliminates the possibility of an emergency.

The positive effect of the proposed yci system for code translation is that each broadcast automatically restores the nominal pulse duration and code intervals.

Claims (1)

Invention Formula A device for translating codes containing a track relay with a filter connected to the output of one rail circuit, a power source, a track transformer whose secondary winding is connected to the input of another rail circuit through the relay contacts of the power supply circuit and the primary The winding of the track transformer with a control relay, characterized in that, in order to increase the reliability of the device, it is equipped with a delay element with a driver and an inverter one signal, the input of which is connected to the power source via the contact of the track relay, and the output to one of the inputs of the control unit of the switching element directly and with the other Bxt) doct through the driver and the inverter. Sources of information taken into account in the examination: 1, Kazakov A, A, Auto-blocking, automatic, locomotive signaling and auto-stop. M, Transport, 1969, p. 281-g &