SU787234A1 - Track circuit encoding device - Google Patents

Description

The invention relates to railroad automation, in particular, rail electric devices for distilling blocking. A device for coded track circuits is known, which contains a track receiver, connected to the rails and connected to an information signal decoder, the direct output of which is connected to the traffic light control unit and one output of the code generation unit connected to the output equipment adjacent track circuit l. A disadvantage of the known devices is the presence of track chain zones on which, when occupied by certain types of rolling stock (drill car, railcar, etc.), perception of false information by the track receiver can occur, as well as the possibility of receiving false information in the event of a rail fault. chains (for example, the gathering of the insulating joint, break rail), which reduces the reliability of the device. The purpose of the invention is to increase reliability. The goal is achieved by the fact that the device is equipped with a control signal generation unit:;., Matched with one output and one input, respectively, with HHBcpcHtJi. output of the information signal decoder and another input of the code generation unit, and two other inputs, respectively, with the direct and HHBepcHiJM outputs of the track receiver, connected to the specified outputs by two inputs with one key (lm element, the two outputs of which are connected to the two inputs of the information decoder of the first signals connected by a control input with another input of the code forming unit by another key element, connected input and output respectively to the output of the latter and to the input of the track receiver by the third key The main element connected to the control input of the latter is a train detection element, a pilot signal diverter, one input of which is connected to the forward output of the track receiver, another input connected to the output of the pilot signal generating unit, and the output to the control input of one key element the output of the code forwarding unit is connected to the input of another key element.

The drawing shows a block diagram of the device.

The device for coding the track circuit contains a track receiver 2 connected to the rails 1, the direct output a of which is connected to the decoder 3 of the control signal, with one input of the key element 4 and with one input of the block S forming the control signal, and the inverse output b of the receiver 2 is connected to other inputs of element 4 and block 5.

The outputs of the key element 4 are connected to the inputs of the decoder 6 in4 normal signals, which is connected by the inverse output C to block 5, and the direct output to the block 7 by controlling traffic lights and to the block

8 forming code whose output is connected to the transmitting equipment

An adjacent rail circuit and to the input of the key element 10, the control input of which is connected to the output of block 5 connected to the input of the decoder 3, and the output connected to the key element 11 to which the train detecting element 12 is connected.

The device operates as follows: 3 ohm.

When the train enters the block-section (rails 1), track receiver 2 is turned off, which causes the decoder to switch to the red light signal. The signal from the output of the decoder 6 is fed to the input of block 8, the output of which must be formed code red-yellow fire (QOL).

But at the output of block 8, the QOL code does not match, since the other input of block 8 receives a signal from the output of block 5. The signal at the output of block 5 is sent as follows.

When the decoder b is switched to the red light signal at the inverse output C, its signal is removed, which in turn removes the prohibition from the control signal generating unit.

Since the track receiver 2 is turned off, at its inverse output B there is a continuous signal that arrives at the input of block 5 and at its output appears a signal that arrives at the input of the decoder 3 of the pilot signal, erases the information of the pilot signal in it from the next signpoint along the train. The absence of a signal at the output of the decoder 3 of the control signal causes the key element 4 to turn off, thereby breaking the circuit between the path receiver 2 and the decoder 6. In addition, the signal from the output of block 5 is fed to the control input of the key element 10, including it, and the input of block 8, resulting in the output of block 8

the control signal, whichP is supplied to the transmitting equipment 9 adjacent rail circuit, and also passes through the key element 10 to the input of the key element 11.

Key element 11 is turned off, as there is no signal at its control input, since the signal at the output of train detection element 12 is round only when the train leaves the adjacent track circuit and train loop of train detection element 12. As soon as the train releases the adjacent rail circuit and train element 12, the output of the train detection element 12 is a signal that turns on key element 11. When element 11 is turned on, the signal from the output of block 8 will go through elements 10 and 11 to the input of track 2 and enable it. The control signal at the output of track receiver 2 acts on the decoder 3 of the control signal, but this signal is not perceived by the decoder 3, since at its input there is a signal from the output of block 5.

The control signal from the output of the track receiver 2 also acts on the input of block 5 and from this point on after a specified time the formation of the control signal by block 5 stops. After the formation of the control signal by block 5, its output is removed, the key element 10 is turned off, the prohibition is removed from the decryptor. 3 of the control signal and the formation at the output of block 8 of the code of a red and yellow light, which is fed to the transmitting equipment 9 following the control signal. Since element 10 is turned off, track 2 is turned off, but the appearance at the input of block 5 of the signal from the inverse output b of track receiver 2 does not turn on block 5 again, since the end of the formation of the control signal was remembered in block 5 and this information was erased block 5 only after switching the decoder 6 from red fire to any other fire. Switching the decoder 6 occurs only if before the code signal to the input of the receiver 2 comes check

.signal. In this case, the path receiver 2 is turned on and a pilot signal is received at the input of the decoder 3 of the control signal, where, after decryption, it is stored and the output of the decoder 3 of the pilot signal appears, which includes element 4 and through the progress of the decoder 6 after the termination of the control signal the signal will come codes from the output of the track receiver 2. After the decoder 6 switches, on its inverse you

Claims (1)

Claim A device for coding a rail circuit, comprising a track receiver connected to rails and connected to an information signal decoder, the direct output of which is connected to a traffic light control unit and to one input of a code generation unit connected by an output to transmitting equipment of an adjacent rail circuit, characterized in that , in order to increase reliability, it is equipped with a control signal generating unit connected to one input and one output, respectively, with the inverse output of the information decoder signals and another input of the code forming unit, and two other inputs, respectively, with direct and inverse outputs of the track receiver connected to the indicated outputs by two inputs with one key element, two outputs of which are connected to two inputs of the information signal decoder, 5th control input with another input of the code generation unit with another key element connected to the output of the last and to the input of the track receiver by the third key element connected to the control input of the last train detection element, a control signal decoder, one input of which is connected to (5 to the direct output of the Circuit receiver, the other input is connected to the output of the control signal generating unit, and the output is connected to the control input of one key element, and the output is and the formation of the code is connected by the invert of the specified other key element.