Signal system for protecting a single-track route section

(42) Date of commencement of the patent: 15 * 11.1993 (45) Date of issue: 27. 6.1994 (56) Documentation: DE-US32457 «?

(73)

Patentee:

UTTENIHAL MANFRED DIPL. ING.

A-4682 BRIDGES, UPPER AUSTRIA (AT).

(54) SIGNAL APPARATUS FOR SEPARATING AN INCLINED ROUTE SECTION (57) Signaling system for securing a single-track section which is subdivided into a plurality of blocks secured with signals, wherein in each block there is arranged an encoder which controls a signal. To appreciate a simple structure of such a signal system, is planned that at the border of the Blok, two a pair of donors (2, 2 ', 3, 3 ') are arranged at a small distance in front of each other, which is connected to the inputs of a respective flip-flop circuit (4, 4 ') are connected and set and reset, wherein the resetting by the encoder (2, 3) of each couple, the first each a Schianenfrfttzeug detected, wherein the one output (Q ') of each flip-flop circuit (4, 4 ') with an AND link having reset input of a further Fllp-flop Schal__ device (6, 6) is connected, at least one further input of the UHJ connection of the Hüsee input of each of these flip-flop circuits (6, 6 ') with at least one in the respective direction of travel of the Sdiienenfahrzeugcs to be detected on the output side engebordnet encoder (2, 2 * 3, 3 ') the block (B), connected is, whose outputs (tr) are two, preferably in the middle region of the block (B) at a distance from one another corresponding to the permissible speed in this block Notsi ial (1, 1 ') or Notopopeinufftungen optionally one of the outputs of these two flip-flop circuits (6, 6 ') controls the linking OR circuit (7).

AT 397 791

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AT 307 791 B

The invention relates to a signaling system for securing a single-track section which is divided into several blocks secured with signals, wherein at the block boundaries two each a rail vehicle detecting, forming a pair donors are arranged at a small distance from each other and each donor controls a signal.

In conventional double-track rail lines, the individual sections are divided into blocks, which are secured by appropriate encoders that control signals. In this case, the signal of the respective upstream block is only released again when the block has already been left by the passing rail vehicle.

Be single-track routes, especially if they are due to construction, but io cause considerable difficulties, since just the fuse must respond to both directions and in particular a collision must be prevented.

A signal system of the type mentioned above was known from DE-PS 32 43 700. However, this known solution has a very complicated structure. In addition, in the known solution, the disadvantage of a slow train sequence, since according to the known solution, a train in a

Block einfahran can if the previous train enters ready in the next but one block.

The aim of the invention is to propose a signal system of the type mentioned, which is characterized by a simple structure and allows rapid train sequence.

According to the invention, this is achieved by that the encoders are connected to the inputs of a respective flip-flop circuit and set and reset these, the reset being done by the donor of each pair, the first detected a rail vehicle, wherein one output of each flip-flop circuit is connected to the reset input of another flip-flop circuit having an AND operation; wherein at least one further input of the AND gate of the reset input of each of these flip-flop circuits with at least one of the respective

Direction of travel of the rail vehicle to be detected on the output side arranged donor of the block is connected, the outputs of two, preferably in the central region of the block in a corresponding speed in this block corresponding distance corresponding emergency signals or Notstepelnrichtungen optionally via one of the outputs of these two Fiip-Fiop- Switching links OR circuit controls

In this way, it is possible for due to errors in the train sequence related movements of two

Rail vehicles against each other to avoid a collision, as it comes in this case to an automatic barrier of the route through the emergency signals located in the block, or by the emergency stop devices

On the other hand, in normal operation there is no activation of the emergency signals or the emergency stop device. because just the corresponding flip-flop circuit is set by the signal issued on leaving the block by the ss rail vehicle signal of the corresponding encoder and therefore there is no switching through of the corresponding AND gate circuit results from the spaced-apart arrangement of the encoder Couple's advantage in that the sequence of the signaling of the departure-side pair in the respective direction of travel of the rail vehicle to be monitored ensures that that first the corresponding flip-flop circuit is reset, before one

Signal is output to the associated with this, having a AND-Röcksetzeingang having flip-flop circuit.

According to a further feature of the invention can be provided that the emergency signals controlling the flip-flop circuits is only accessible via a manually operable switch, preferably after overcoming a barrier, can be set. In this way it is ensured that the route only after the evacuation of the route of a

Authorized emergency signals or the Notstepelnrichtungen can be tapped back.

Furthermore, it can be provided that the second outputs of those flip-flop circuits, which are connected to their outputs on the output side with the AND operation having reset inputs throwing flip-flop circuits, optionally connecting these sine second outputs

AND linkage with signals located at the inputs of the block and optionally connected to adjacent stations.

These measures have the advantage that a conventional block backup can be integrated with.

Furthermore, it can be provided that the second outputs of those flip-flop circuits, which are connected to their outputs having an output on the output side with the AND operation compensating reset inputs having flip-flop circuits -sind, each having an AND logic operation having a reset input, whose one input is connected to a transmitter and whose second input is connected to the second output of the other, similar flip-flop circuit

AT 397 781 B

These measures ensure that the flip-flop circuits associated with the encoders with their set and reset inputs are in a defined shadow state when the block section is empty, and thus the entire circuit is also kept in a defined shadow state.

The invention will now be explained in more detail with reference to the drawing, which shows a block diagram of a signal system according to the invention

The track to be monitored single track is divided into sine corresponding number of blocks A, B, C in the central region two distress signals 1, Tin are arranged at a distance from each other, the at least twice the Anhaiteweg with the allowed in this section io maximum speed train with corresponds to a maximum authorized weight for this section

To control these emergency signals 1,1 'are provided in the end regions of the block B two paired donors 2, 2' and 3, 3 '. Here are the arranged at both ends of the block B Geb * * 2.2 *. 3, 3 * are connected in pairs to the inputs of an AND gate 12, 12 * rs in each case, the encoders 2, 2 'being connected to the AND gate 12.

The outputs of these two AND gates 12. 12 *. are connected to the Bngängen an OR gate circuit 11 whose output is connected to the set inputs of two flip-flop circuits 4,4 '.

An input of the AND operations having reset inputs is connected to the second output Q 20 of the other similar Fiip Fiopschaitung 4, 4 ', said outputs Q are also connected to the inputs of an AND-Verlumpfpfschdtung 10, the output Ober a

Inverter arranged at both ends of the block B signals 5,5 'controls.

The first outputs Q * of the flip-flop circuits 4, 4 * are connected to reset inputs of further Aip-Aop shafts 6, 6 'having AND operations. The two further inputs of the AND connections of the reset inputs of these frip Ffop circuits 6, 6 * are with the encoders 3, 3 ', or 2, 2 ', which are those encoders which are not connected to the reset input of those flip-flop circuits 4, 4 * whose output Q' is AND-connected to the reset input of this Rp-Rop shade 8, 8 * is connected so that the AND operations of the reset inputs of the Aip Aop circuits 6, 6 * directly from those at one end of the B block and over the Rip Rop30 bearings 4. 4 * is indirectly controlled by a transmitter 2, 3 arranged at the other end of the block B, wherein internal sensors 2 ', 3' are connected to a negating input of the AND connection.

The set inputs of these Aip-Aop-shafts 6, 6 'are connected via manually switchable switch 8, 8' with a potential U », which serves to set this FRp-Ftop Schakung, where dis switch. 8

3β Θ * are designed as SchloßschaKer.

The outputs Q 'of these Aip-Fiop-Schafiungen 6,6' are connected to the inputs of an OR gate circuit 7, whose output controls the two emergency stop signals 1. Γ

In the case of a train journey from block A to C, when a rail vehicle passes by, the encoder 2 responds via the AND connection shaft 12 and the OR link shaft 11, whereby the ffl Aip-Ftop shaft 4 is reset, the second input of the UNDB being reset. Linkage on a HPotential from the output Q of the flip-flop circuit 4 'is located

Due to the passage of the rail vehicles is at the left input of the AND VerknOpfüngsschaitung 10 to an L-signal, which is placed on the negated output of this circuit, an H-signal to the two signals 5, 5 * and they are gestielten to stop.

Bel the further passage of the encoder speaks 2'an, but this does not entail any further effects the same gift for the termination of the signaling of the encoder 2 and the encoder 2 '. after the rail vehicle has completely passed these donors. The subsequent response of the encoder 3 'and the encoder 3 has no effect on the switching state of the Schäftung.

If the donor 3 'from. so is due to the negating Anganges the AND linkage so 12 * an H signal to the right input. Then fills the encoder 3 from. so also to the dynamic start of the AND gate 12 'an H-Signai, so that this turns on and outputs an H-pulse, which passes through the QDER linkage Schaitung 11 to the set inputs of the Fiip AopSchaHung 4,4', whereby the Flip-flop socket 4 is set again and the AND gate circuit 10 again responds and the L-output via the negated output to the signals 5 and 5 ', so that they are put back to free.

For a trip In the opposite direction, similar conditions arise.

If there is a substantially simultaneous retraction of two rail vehicles from block A and from block C forth in the block B, so that the falling of the signals 5, 5 'in the stop position no longer

AT 397 791 B can be registered, so depending on which vehicle later enters the block B either the Fiip Rop circuit 6 or the Πίρ-flop circuit 8 'reset and thus the Rüdtsetzeingang one of the two flip-flop circuits 6, 8 * activated and thus placed on the OR-Verbindungschaitung 7 the two emergency stop signals 1, Γ to stop.

s Travels eg first a train from A ago in the block B, then the Ffip-flop circuit 4 is reset and their Q'Output provides an H signal to the AND operation of the reset input of the flip-flop circuit 6 *. Then the encoder 3 then responds to the block 6 due to the snapping of a train from the block C. Thus, H signals are present at all three transitions, since the encoder 3 'does not yet supply an H signal and the corresponding input negates. However, the output Q' of the fiip-rop line 6 'outputs an H signal the OR-Verbindungschaitung 7 the emergency stop signals 1,1 'to Hali

It is also possible that a rail vehicle stops in the block B stops and this in the

Leaves the opposite direction again. In this case, the release of the circuit via the AND linkage Schschungs 12, or 12 'takes place depending on the direction in which block B was retracted.

The flip-flop circuits, as well as the AND-connection shafts can basically be formed by rs corresponding electronic Schäftungen, as well as by Reiaisschaitungen or hybrid circuits, it is essential only that the selected circuits can fulfill the appropriate functions.