CZ294819B6 - Crossing interlocking installation with remote exterior elements supplied with alternating low voltage - Google Patents

Abstract

In the invented crossing interlocking installation with remote exterior elements supplied with alternating low voltage the control and checking elements and namely a central unit (1), a checking unit (2), a feeding unit (3) including oscillator and switching, a light illumination checking unit (4), a warning light control unit (5), warning bell switching unit (7), input element unit (9), output element unit (10), local control evaluation unit (11), optionally when barriers are used a retention electromagnet switching unit (13), barrier switching unit (15) and a barrier position evaluation unit (17), are interconnected with each other and located in a railway station object remote from the crossing of a road with a railway track.

Description

Level crossing interlocking equipment with remote outdoor elements powered by AC low voltage

Technical field

BACKGROUND OF THE INVENTION The present invention relates to a level crossing safety device with remote outdoor elements powered by alternating low voltage, including outdoor elements and controls and controls for outdoor elements. Low voltage is defined in the standard ČSN 33 0010.

Outdoor elements containing warning lights with red and white lights, audible warnings, local level crossing control box, or barriers, including their drives and their controls.

The controls and controls of the outdoor elements include a power block that includes sources including oscillation and switching and is coupled to a control block that is coupled to the central block that is coupled to the input element block and the output element block. The controls and controls of the outdoor elements further comprise a central block connected to the light control block, the bar position evaluation block, the block, the local control evaluation from the crossing point, the audible warning blocks, the electromagnets retained and the barriers.

This ensures the control and control of remote output peripherals, warning lights, audible warnings, barriers and local controls located at the intersection of the railroad with the road.

BACKGROUND OF THE INVENTION

The level crossing system currently used consists of external and internal elements.

The exterior features include an alarm with red and white lights, an audible warning, a local level crossing control box, or barriers including their drives and their controls. The outdoor elements include a warning light block, a doorblock block, a restraint solenoid block, a bolt drive block, a bolt position or state block, and a local control block.

These external elements are controlled and controlled by the internal elements. The inner elements comprise interconnected sides, namely a DC soldering block, a control block, a central dependency block; lighting control, light oscillation and intermittent audible warning block; further comprising an input element block and an output element block.

All the internal elements of these devices must be located in the buildings in close proximity to the external elements and do not allow for distancing each other over longer distances.

Fig. 1 shows the state of the art, ie a block diagram of a level crossing safety device at a crossing point. The currently used level crossing safety device consists of external and internal elements. The outdoor elements include a BSV warning light block, a bell BZ block, a restraint solenoid block BZE, a bolt actuator block BPZ, a bolt position BSZ block and a local control BMO block. These external elements are controlled and controlled by the internal elements. The internal elements include interconnected blocks, namely a BSN DC block, a BK control block, a BCZ central dependency block, a BKS block control for lighting, light oscillations and intermittent audible warnings, and a BVP1 input element block and a BVP2 output element block.

The control and control elements consist either of relay circuits of older types of devices or of newer types of pPC system combinations with contact or contactless interface.

-1 CZ 294819 B6

In the Czech Railways network, hereinafter referred to as ČD, as well as other carriers on the territory of the Czech Republic, older relay or newer electronic level crossing signaling devices are still used. These existing safety devices require the placement of all technology, including power supply, in buildings such as relay houses or cabinets, in the immediate vicinity of the crossing, ie where the road crosses the railway line. This entails considerable costs not only for the construction part of the buildings, but also for establishing the necessary electrical connections, often from distant locations. In addition, the local energy network often does not have the required quality or stability in a given location. Such level crossing safety interlocking devices must be controlled in cooperation with the connected station interlocking and track interlocking devices, but these are concentrated in neighboring stations or other distant objects. It is also necessary to transmit information about the operation of the level crossing facilities to neighboring stations. This raises considerable demands either on the transmission equipment used or on the relay connections over metallic cable lines.

Older types were put into operation by ČD until the 1950s, first as systems imported from the then USSR and referred to as the "USSR PZS model". Later, these were innovated or completely new types were developed in the Czech Republic and supplied under various trade names as VÚD type crossings, PZS VÚŽ 76, PZS AŽD-71.

New types of level crossings based on pPC systems have been put into operation since the 1990s. These are foreign systems, eg EBUT 80 as a joint product of Scheidt & Bachmann, Pintsch Bamag and Siemens, or BUS 2000 of Scheidt & Bachmann, or NE BU 90E of Siemens, or SpA-4 of ABB ZWUS Katowice. Furthermore, there are systems of the domestic producer AZD PRAHA s.r.o., eg of the type PZZ-EA or semi-electronic device PZZ-RE.

A common feature of both these old and new electronic security level crossing devices is the need to locate their logic circuits, including DC power supply, in the range of 24 V to 60 V depending on the control types of these devices, in buildings directly at the level crossing.

From the information available, we do not know that not only in our country but also abroad, a solution has been proposed that would allow the output peripherals to be distant, ie warning lights, audible warning, barrier positions and local controls located in an area where the railway track crosses the road, from the power supply, logic control and control circuits located in remote objects, ie stations, together with the equipment for controlling these stations. The maximum distances that have been used so far to move the output peripherals away from the power, logic control and monitoring circuits do not exceed 500 m.

SUMMARY OF THE INVENTION

These disadvantages will be eliminated or substantially reduced in a low-voltage powered crossing device with distant outdoor elements powered by the present invention, which is based on the central block being located and interconnected by an object in the railway track, control block, power block including oscillator and switching, world light control block, warning light control block, doorblock control block, input element block, output element block, local control evaluation block block position evaluation block. Low voltage is defined in the standard ČSN 33 0010, where in this case the nominal voltage between the conductors in the insulated system is in the range above 50 V to 1000 V inclusive.

The level crossing safety device is fed from the power supply block including the frequency and switch by a backed-up 230 V ± 20% AC continuous voltage and a back-up 230 V ± 20 AC alternating voltage with its safe control of both its level and correctness of vibration.

-2GB 294819 B6 The central block, control block, power block including oscillator and switching, and the light control block are supplied with 24 V ± 20% DC. AC is a commonly used term for alternating current, and DC is a commonly used term, direct current.

To control the red and white lights, bells, and local controls, the power block, including oscillating and switching, is connected to the World Lighting Control block input, Formula switching block input, Central block input, Control block input, and Local control evaluation input. The central block is bi-directionally connected to the light control block, the control block, the input element block, and the output element block, and is connected to the bell switch input and the local control evaluation block output. The light control block is bi-directionally connected to the warning light control block and is also connected to the control block input. The indicator light control block is connected bidirectionally to the indicator light block l. The doorblock switching block is connected to the doorbell block input. The local control evaluation block is bi-directionally connected to the local control block and is also connected to the control block input.

After the control of the barriers, the block is supplied with the frequency and switching connected to the input of the blocking of the holding electromagnets, to the input of the switching of the barriers and to the input of the block evaluating the position of the barriers. The central block is connected to the input of the holding solenoid switching block, the gate switching block input and the output of the barrier position evaluation block. The control block is connected to the output of the barrier position evaluation block. The holding solenoid switching block is connected to the holding solenoid block input. The barrier switching block is connected to the gate drive block input. The barrier position evaluation block is bi-directionally connected to the barrier position block.

The main advantage of the present invention is the discovery of a suitable level crossing safety device with a distance of output peripherals from power, logic control and control circuits at distances exceeding 500 m while simultaneously solving the central and control block so that all norms prescribed in ČSN 34 2600 and ČSN 34 2650. The solution can also be adapted to the requirements of foreign railway administrations.

The advantage of the present invention is that it allows to move the output peripherals located in the area where the railway track crosses the road from power, logic and control and control circuits located in distant objects up to 5 km and eliminates the need to state the objects of relay houses or cabinets. the immediate proximity of the crossing, to place all technologies, including the power supply in these buildings, to incur significant costs for establishing electricity connections and to transmit information about the crossing activity to neighboring stations via transmission equipment or relay links, conducted over metallic cable lines.

Often, the local energy network does not have sufficient quality or stability in the area. Another advantage of the present invention is that electrical power is used to power the level crossing interlocking device, which is common to the power supplied to the station interlocking device. This energy meets all prescribed parameters for quality, availability and prescribed backup time.

BRIEF DESCRIPTION OF THE DRAWINGS

For clarity and comparison, the prior art is shown in Fig. 1 and the invention is in Fig. 2 a

3.

Giant. 1 shows a block diagram of a security crossing device according to the prior art including barriers as described in the prior art of the present invention.

-3 CZ 294819 B6

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 2 is a block diagram of a level crossing security device for controlling the red and white warning and bell lights, and FIG. 3 is a block diagram of a level crossing security device for controlling the red and white lights. warning bells and bells, supplemented with barriers.

DETAILED DESCRIPTION OF THE INVENTION

Example 1

This embodiment according to FIG. 2 represents a safety crossing device without barriers, with no energy source at the crossing. On the left side of Fig. 2, the location of blocks distant, eg up to 5 km from the crossing point of the railroad with the road, is indicated by dashed lines. On the right side of Fig. 2, the area of blocks placed directly on the level crossing, ie at the crossing point of the railway line with the road, is marked by dashed lines.

For controlling the red and white warning lights, the following arrangement is optimal. The power supply block 3 including the frequency and switching is connected to the input of the light control block 4, the input of the bell switch 7, the input of the central block 1, the input of the control block 2 and the input of the block Η local control evaluation. The central block 1 is connected in both directions with the light control block 4, the control block 2, the input element block 9 and also the output element block 10. The central block 1 is connected to the input of the formula switching block 7, to the input of the input element block 9 and to the output of the local control evaluation block 11. The light control block 4 is connected bidirectionally to the warning light control block 5 and is further connected to the input of control block 2. The light control block 5 is connected bidirectionally to the warning light block 6. The formula switching block 7 is coupled to the input of the formula block 8 to provide the formula operation in the warnings. The local control evaluation block 11 is connected bidirectionally to the local control block 12 and is also connected to the input of the control block 2.

The pairs of blocks 5a, 6a, 7a, 8, 11 and 12 are interconnected by means of the cable duct shown in dotted lines in FIG.

The power block 3 including the oscillator and switching has the optimum arrangement it provides

- checking the presence of two input voltages 230 ± 20% V AC,

- switching of these input voltages 230 ± 20% V AC with failure of one of them,

- a continuous voltage of 24 ± 20% V DC for all the listed blocks,

- a continuous voltage of 230 ± 20% VAC for block 4 of the lighting control, block 7 of the doorbell control, block 11 of the local control evaluation, block 17 of the position evaluation of the barriers, block 15 of the latch switching, and block 13

- an alternating voltage of 230 ± 20% V AC, 40 oscillations / minute for white lights in block 4 of the light control,

- an AC voltage of 230 ± 20% V AC, 60 oscillations / minute for red lights in block 4 of the light control,

- information for central block 1.

Crossing interlocking equipment with remote outdoor elements is powered by 230 V AC and allows output peripherals to be moved as needed to crossroads with the road, while all power, logic control and control circuits are located in the station buildings together with station control equipment. This configuration is designed to control and control remote output peripherals, ie warning lights,

-4GB 294819 B6 There is no power source on the level crossing itself for the audible warning, barrier actuators and local controls.

The central block 1, the block 5 of the warning light control and the block 7 of the bell switch, the control block 2, the block 4 of the light control, the block 9 of the input elements, the block 10 of the output elements and the block 11 UIC 736 requirements for N-type relays.

The UIC Code 736 is the name of the document of the International Railway Union, whose abbreviation is UIC, which is binding for Czech Railways, which are its members. This UIC 736 defines the requirements for the design of various relay types, including the design of the "N" type relay.

The distance of the output peripherals from the power, logic control and control circuits up to a distance of 5 km allows the use of the light control block 4 together with the warning light control block 5 and the warning light block 6, the bell switch 7 with the 8 bells block, with block 12 of the local control, for crossings without barriers.

Block 3 power supply including oscillator and switching for level crossing safety device with required parameters. This means that it generates two independent continuous voltages of 230 V ± 10% AC, either by using two UPC sources operating in the on-line mode or by taking these voltages from the station interlocking device. According to EN 62040-1-1, the term "USP" indicates that it is an "uninterruptible power supply", with UPS abbreviating the initial letters of the Ininterruptible Power System;

The power supply block 3 including the oscillation and switching provides for these two independent voltages 230 V ± 10% AC by their mutual backup for the light control block 4, the bell control 7 block, the local control evaluation block 11, the barrier position evaluation block 17, the barrier switching block 15 and block 13 of the holding solenoid switching.

The power supply block 3 including the oscillator and switching from these two independent voltages of 230 V ± 20% AC creates a galvanically isolated backup voltage oscillation for the light control block 4 with their safe control of both level and correctness of the oscillation. This is 230 V ± 20% AC, 40 oscillations / minute for white lights and 230 V ± 20% AC, 60 oscillations / minute for red lights.

The power supply block 3 including oscillator and switching is also a 24 V ± 20% DC voltage source for central block 1, control block 2, power supply block 3 including oscillator and switching, and the light control block 6. The block 3 either generates the voltage directly or uses it from the station interlocking device if both are located in the same building.

Example 2

This embodiment according to FIG. 3 represents a barrier crossing device with bolts. In Fig. 3 on the left, the location of the blocks, for example up to 5 km at the level crossing, is shown in dashed lines, and on the right, the area of the blocks located directly at the level crossing.

This exemplary embodiment of a safety crossing device is identical to the previous one of Example 1, except that it additionally includes a restraint solenoid switching block 13, a restraint solenoid block 14, a barrier switching block 15, a barrier drive block 16, a barrier position evaluation block 17 and a position block 18 latches.

-5GB 294819 B6

In addition, with respect to the previous embodiment, the power block 3 including the oscillator and the switch is connected to the input of the blocking electromagnet switching block 13, the input of the barrier switching block 15 and the input of the barrier position evaluation block 17. Further, the central block 1 is connected to the input of the holding electromagnet switching block 13, to the input of the bolt switching block 15 and to the output of the bolt position evaluation block 17. The control block 2 is connected to the output of the barrier position evaluation block 17. The restraint solenoid switching block 13 is connected to the input of the restraint solenoid block 14 for the function of the restraint solenoids in the individual barriers. The bolt switching block 15 is connected to the input of the bolt drive block 16 for the drive function of the individual bolts. The barrier position evaluation block 17 is bi-directionally connected to the barrier position block 18.

The pairs of blocks 5 and 6, 7 and 8, 11 and 12, 13 and 14, 15 and 16, 17 and 18 are interconnected by means of the cable ducts indicated in dotted lines in FIG.

Central block 1, control block 2, light control 4, warning light control block 5, bell switching block 7, input element block 9, output element block 10, local control evaluation from crossing point, restraint solenoid switching block 13, The barrier switching block 15 and the barrier position evaluation block 17 are composed of relays meeting the requirements of the UCI 736 Code for N type relays. The distance of the output peripherals from the power, logic control and control circuits up to a distance of 5 km allows the use of the light control block 4 together with the warning light control block 5 and the warning light block 6, the bell switching 7 with the 8 bells block, with the local control block 12, the restraint solenoid switching block 13 with the side 14 of the restraining solenoids, the barrier switching block 15 with the gate actuator block 16, the barrier position evaluation block 17 with the barrier position block 18, for barriers crossings.

Industrial applicability

The solution is suitable for securing the crossing of railway tracks with roads.

Claims (5)

PATENT CLAIMS 1. A level crossing safety device with remote AC low voltage outdoor elements, comprising outdoor elements and controls and outdoor element controls, the outdoor elements including red and white warning lights, an audible warning, a local crossing control box and, if applicable, barriers including actuators and their controls, and the controls and the controls of the outdoor elements comprise both a power block comprising sources including frequency and switching and connected to a control block connected to a central block connected to an input element block and an output element block; further comprising a central block connected to the light control block, a barrier position evaluation block, a local control evaluation block from the crossing point, an audible warning block, a restraint electromagnet and a barrier, characterized in that control and control elements, namely central block (1), control block (2), block (3) power supply including oscillator and switching, block (4) lights control, block (5) control light of warning lights, block (7) switching bells, input element block (9), output element block (10), local control evaluation block (11), block (13), latch solenoid switching (15), latch switching block (17) and position evaluation block (17) They are interconnected and placed in the building in the railway station, distant from the point of its own crossing of the road with the railway track. -6GB 294819 B6 Crossing interlocking device according to claim 1, characterized in that it is supplied from the power supply block (3) including the frequency converter and switching both by a backed-up continuous voltage of 230 V ± 20% AC and on the other both its level and the vibration accuracy. Crossing protection device according to claim 2, characterized in that the central block (1), the control block (2), the power block (3) including the oscillator and the switching, and the light control block (4) are supplied with 24 V ± 20% DC. Level crossing device according to Claims 1 to 3, characterized in that for controlling the red and white lights, bells and local controls, the power supply block (3) including the oscillator and switching is connected to the input of the lighting control block (4). bell switch input (7), central block input (1), control block input (2), and local control evaluation block (11) input, the central block (1) being bidirectionally connected to the light control block (4) light, with control block (2), input element block (9) and output element block (10), and is connected to the input of the doorblock block (7) and the output of the local control block (11), block (4) the light control is connected bidirectionally to the warning light control block (5) and is also connected to the control block input (2), the warning light control block (5) is connected bidirectionally to the (6) the indicator lights (6), the doorblock switching block (7) is connected to the input of the doorblock block (8) and the local control evaluation block (11) is bi-directionally connected to the local control block (12) and ). Crossing interlocking device according to claim 4, characterized in that, for controlling the bolts, the supply block (3) including the oscillator and switching is connected to the input of the blocking solenoid switching block (13), the input of the bolt switching block (15) and the block input (17) latch position evaluation, wherein the central block (1) is connected to the input of the blocking solenoid block (13), to the latch block input (15) to the latch output block (17), the latch position evaluation block (2) is connected to the output of the barrier position evaluation block (17), the retaining solenoid switching block (13) is connected to the input of the retaining solenoid block (14) and the barrier switching block (15) is connected to the input of the latch drive block (16) and the evaluation block (17) The latch position is connected bidirectionally to the latch position block (18).