SU948728A1 - Apparatus for automatic locomotive signalling - Google Patents

Description

one

The invention relates to devices that ensure the safety of the movement of trains on tracks, mainly on the metro

A device for automatic locomotive signaling is known, which contains a frequency code signal generator with a signal frequency selection unit connected to it, and on the locomotive frequency signal signal receivers connected by an input to receiving coils, and an output with corresponding signal executive relays of admissible speeds and relays through the contacts of which to the power source is connected the traffic light fl.

A disadvantage of the known device is the impossibility of controlling the speed of the train, taking into account its possible limitations in the block ahead.

The aim of the invention is to expand the functionality.

The goal is achieved by the fact that the device is equipped with an additional warning code signal generator installed with a software unit connected to it, connected to a signal frequency selection unit, a frequency code generator, and a warning code signal receiver installed on the locomotive connected to it via the rear contact of the corresponding relay. , turnips of the warning signal and auxiliary relays connected via the rear contact, connected in series bars which are included in the relay driving circuit correspondence connected through front contact alarm relay to the receiver of this signal, the alarm relay are connected through a private fron ggosledovatelno

A contact and a relay contact correspond, an auxiliary relay through a front contact of a warning signal relay, and each signaling actuating relay of permissible speed are connected via a series of front contacts of the switching relay and the rear contacts of the corresponding signaling actuating relays to a power source.

The drawing shows the functional diagram of the device.

The device contains, on the way, the frequency code signal generator 1 and the warning code generator 2, as well as the program block 3 connected to the control linear circuits k, which selects and sends the necessary signal for the situation to the rail threads. On the locomotive, the device contains receiving coils 5 | Inductively connected to rail threads and connected to successively connected inputs of the receiver 6 warning code signal and receivers 7 frequency code signals, as well as signal executive relays 8 with pins 8, 8, relays 9 with pins 9.1-9.6, relays 10 permissible speeds with contacts 10.1-10.5 of the alarm warning relay 11 with contacts 11.1-11.6, auxiliary relay 12 with contacts 12.112 .2 and relay 13 corresponding to the limits of 13..9.

All signal relays 8-10, relay

11preventive signaling and auxiliary relay 12 are de-energized, and their series-connected rear contacts 11.5, 12.1, 8., 9. +, 10.3 form, together with the series-connected rear contacts, executive relays (not shown) of the receivers

6 and 7, the power supply circuit of the relay 13 corresponds. Signal executive relays 8-10 permissible speeds, as well as alarm relay 11 and auxiliary relay

12 are connected to the power supply through interlocking circuits. Signaling of the received signal is displayed at the locomotive traffic light 1.

The automatic locomotive alarm device operates as follows.

The selection of the required code signal generated by generators 1 and 2 for sending to the track circuit is carried out by software unit 3 based on the information processing transmitted by linear circuits.

control k and a reflection of the process of releasing the train of a corresponding number of ahead block sections.

When coding yours and ahead

lying track circuits with the same signal frequencies that carry information, for example, about the highest permissible speed, on the locomotive actuating relays 8 operate

corresponding receiver of the main code signal. If this was preceded by the movement of a train over a section with a different code signal, the excitation of the signal actuating relay 8 will become possible only after de-energizing the relay corresponding to 13 and closing its rear contact 13.2. This connects the specified signal actuating relay 8 to the output of the receiver of the higher code signal. Having excited the signal actuating relay 8 with its front contacts 8.1 and 8.7, it prepares the main and additional locking circuits, with the front contact 8.2 — the main blocking circuit of the signal actuating relay 9 of lower speed, the front contact 8.5 of the power supply circuit of the corresponding locomotive traffic light 14, and the front contact 8.3 creates an excitation circuit of the relay 13, thus connecting it to the output

corresponding receiver.

Relay 13 correspond, having excited, with its front contacts 13.1 and 13.3, block the signal executive relays 8 and

9 and the front contact 13.9 creates a power supply circuit to the locomotive traffic light I. An alarm actuating relay 9 is energized with its closed front contact

9.2 creates an excitation circuit for a signal relay 10 of an even lower permissible speed, containing also series-connected

front contact 13-5 of the excited relay 13 correspond to its own front contact 10.1.

Thus, all signal actuating relays 8.10 and relays corresponding to 13 become energized, but at the same time, alarm warning relay 11 and auxiliary relay 12 are in a de-energized state.

Similarly, the circuit also works when encoding the considered track circuit with a signal frequency that carries information about a lower permissible speed than on a subsequent track circuit.

In the starting situation, when the speed on the track circuit is higher than the next block along the train movement, the automatic locomotive signaling device works as follows.

Program block 3, estimating the number of free front track circuits, generates a command to connect to the rail line from the moment the train enters the given track circuit of the generator 2 of the warning code signal. From the moment the train enters the track circuit, the coding is carried out by the signal frequency carrying information about the allowable speed on the track circuit until a time sufficient to reliably trigger all the alarm actuating relays 8-10. After this time, the software block 3 switches the generators 1 and 2 of the code signals, thereby providing the warning code signal to the rail circuit. At the same time, the executive relays 8-10 of the receiver of the main code signal are de-energized, but at the same time the receiver actuators 6 of the pre-code signal, and with the relay 13, the voltage is de-energized, but it keeps its front contacts closed due to the deceleration of the drop-off. In this case, the auxiliary relay 12 through the rear contact 11.3 of the preliminary signal relay 11 is energized. Having excited this relay, its front contact 12.2 creates a circuit for additional blocking of that signal actuating relay, which was excited at that moment. Therefore, releasing the corr of the relay 13 in accordance with and opening its front contacts after the expiration of the deceleration time for the drop-off will not cause the deactivation of the signal executive

relay 8-10 and change the signal indication at the locomotive traffic light lU. In this case, the de-energized relay 13 corresponds with its rear contact 13-8 connects to the output of the receiver

6 warning code signal relay 11 pre-alarm, which is excited, prepares itself a blocking circuit through its own front contact

11.1, puts through the front contact 11.2 on the blocking auxiliary relay 12, connects to the output of the receiver 6 through the front contact P. Relay 13 correspond, and

through the front contact 11.6, prepares a circuit for lighting the corresponding lamp at the locomotive traffic light I. After this, the relay 13 is energized with its closed

front contacts 13.1, 13-3, 13-5, 13.7 terminate the collection of the main blocking circuits of the signal executive relays 8-10 and the blocking circuit of relay 11, and also connects the power source through the front contact 139 to the locomotive traffic light 1.

Thus, as a result of the reception and decryption of the warning code signal at the locomotive, the signal indication of the permissible speed of movement does not change, but at the same time at the locomotive traffic light 1 appears

a warning to the driver of the speed reduction occurring in the next block section.

Claims (1)

Invention Formula An automatic locomotive signaling device containing a frequency code signal generator on its way with a signal frequency selection unit connected to it, and on the locomotive - frequency code signal receivers connected by an input to receiving coils and an output