DE102008009746A1 - Method for implementing a universal route safety technology using industrially available PLC components - Google Patents

Abstract

The invention relates to a device for implementing a universal track safety technology. It is used to adapt interlockings with any block devices that secure block sections of belonging to this interlocking free route to a banchbartes interlocking. Thus, an existing line safety technology will be functional and economical, i. H. Uniform, universal and parameterizable adapted to a newly created interlocking. A matching circuit, together with existing or industrially available transmission technology, creates a universal interface via which the line blocking devices of any interlocking can be adapted to new interlockings. Of the existing block devices of an old signal box, at most the approved transmission modules are reused. All other usual for the function of the block logic relay circuits block assemblies are replaced by a PLC system that exactly simulates the block logic on the one hand and on the other hand, the electrical signals of the block logic processed in standardized form such that the new interlocking can implement the specified data functionally correct and further processed ,

Description

The The invention relates to a device for realizing a universal Road safety technology by means of industrially available PLC components.

she serves to adapt interlockings of any type with block devices, the block sections belonging to this interlocking free Secure route to a new adjacent electronic interlocking.

Of the Driving of rail vehicles can be technically secured Routes centrally from those for the corresponding infrastructure areas responsible signal boxes and decentralized route safety systems be directed and secured.

In DE 10 2005 043 305 A1 describes a system architecture for controlling and monitoring components of a railway safety system. In this case, an automation platform, which comprises a plurality of modules, in particular CPU, power supply, module for safety-related signal processing, module for non-safety-related signal processing, communication module, connected via special interfaces with safety-related and non-safety-relevant components of the railway safety system. The automation platform is a programmable logic controller (PLC). The predefined software structure of the automation platform is modular or hierarchical in that the logistics of the railway safety system, in particular the interlocking logistics, can be organized in function-specific software programs.

disadvantage of the above-described prior art is that while a compound between the signal box and the components of the outdoor unit is realized, but no connection between central or decentralized railway safety systems with each other, in particular not universally between 2 signal boxes or between the existing ones Track safety technology of any design in the network of DB AG.

The New construction project for regional and long-distance networks at DB AG focus on route networks with mechanical signal boxes, electromechanical Interlockings and relay interlockings. A direct adaptation of one new type of interlocking to existing and to maintain track safety systems is usually difficult and time-consuming. A renewal The interlocking technology therefore requires a costly adaptation the existing signal box or track safety to the respective new interlocking technology.

The current adjustments to existing route safety techniques take place via individual and company-specific technical Solutions using relay modules.

Especially require the project-specific conditions a lot of effort on hardware and on configuration, testing and acceptance services. The previous use of basic circuits tried to counteract this However, in individual cases leads to very complex and consequently elaborate solutions. Consider the basic circuits a wide range of use cases, although project-specific Occasionally only a fraction of the realizable by the basic circuit Options is needed.

It is therefore an object of the invention, an existing road safety technology functional and economical, d. H. universal and parameterizable to adapt to a newly created interlocking (usually ESTW).

These Task is according to the features of the claim 1 solved.

A Fitting circuitry creates together with existing or newer industrial available transmission technology a universal Interface, via which arbitrary link block devices adapted to new interlockings.

From the existing block facilities of an old interlocking can the approved transmission modules continue to be used become. Only the relays relevant to the function of the block logic of the block groups are replaced by a PLC system that uses the block logic exactly mimics and the electrical signals of the block logic in Normalized form prepared so that the new interlocking the record and process specified data. Likewise the facility can provide specified information of the new interlocking record and process in block logic.

Therefor become the relays relevant to the function of the block logic the block groups, for example, replaced by a ladder, with which the PLC system is programmed to perform the functions of Block logic takes over.

The existing track-free signaling technology of the track safety can, if operationally required, left or by axle counting technology be replaced.

The existing or new transmission technology ensures a secure data transfer between the neighboring ones Interlockings.

According to claim 2, the PLC system at the location of at least one new interlocking or at the location of the existing neighboring interlocking or at least be placed in a decentralized switching house.

According to claim 3 there is an advantageous embodiment of the invention therein, the PLC system using at least two diverse PLC controls in which each block matching logic to the neighboring interlocking is realized. Both PLCs are using the proprietary Programming tools of the PLC manufacturer programmed.

each PLC checks the states determined by the block logic for plausibility. Then compare that PLC system in a comparator the results and function the two diverse PLC controls. With agreement ensures that from both PLC channels the signal was formed without errors. Thus, the Data passed on to the new interlocking for internal processing become.

vote the data does not match, can not be assumed that the system is working properly. The System recognizes this as an implausible state, there is an inhibition of Block functions to the safe side and an immediate technical Error revelation. The route safety is from now on as disturbed, The operator can no longer operate the control for the route carry out.

In Claim 4 is described as status and diagnostic information from the diagnostic unit to the non-secure diagnostic interface provided for maintenance / suppression become. The diagnostic interface supports the common serial interface types, such as RS 232 C, ETHERnet, Field buses (Profibus, CAN bus, etc.) and a bit-parallel interface. The diagnostic unit represents all essential states of the block available. In case of error is indicated by the Diagnostic information a targeted and fast filtering possible.

The Invention is described below with reference to a drawing with 4 figures and the example of an embodiment for a selected Application explained in more detail.

The Drawing shows in

1 By way of example, the representation of the functional groups of the device according to the invention. On the left side there is an existing signal box with route safety technology (not completely shown). About the illustrated associated transmission system, the connection between the route safety technology of the inventory-interlocking, which is to be adjusted by the inventive device to the new interlocking shown on the right and the device is manufactured.

Between the interlockings, the device ensures that the application specific Block matching logic is simulated using a PLC system.

A Diagnostic Unit will only pass edited information internal states of the device ready. On the far right the transfer of the standardized information to the new signal box.

2 shows an exemplary schematic representation of the internal functional blocks of the device, with isolation relay / level converter, power supply, diagnostic unit, PLC type A, PLC type B, comparator and the connections to the participating interlockings.

3 shows on the left an exemplary, abstract representation of a relay path in an existing block logic and right its equivalent as a PLC ladder diagram.

4 shows on the left an existing relay interlocking with self-block (STW-old) and right a new interlocking (STW-new), with a single-track line without block signals.

When For example, consider one of several possible power-on cases with the adaptation of an existing relay interlocking with self-block (STW-old) to a new interlocking (STW-new), single-track line without block signals.

In the in 4 shown starting position is on a single-track line (bidirectional operation) built a self-block for trackside connection of two old interlocking without block signals. This self-block remains on the side of the remaining signal box STW-old ( 1 ) consist. The track gauge release is assigned to the STW old and is transmitted via a transmission ( 2 ) reported to the STW. On the page to be customized, the auto block frame is replaced by a universal block interface ( 3 . 4 . 5 . 6 ) with internal block logic ( 3 ), wherein the inventive device on the one hand to the existing transmission system ( 2 ) and on the other hand to the input and output modules ( 7 ) of the STW-neu ( 13 ) is connected. The universal block interface takes on the side of STW-new all the tasks of the previous self-block technology. The device according to the invention can be installed in the location of the STW-old or in the STW-new.

The exchange and processing of the block information between the device according to the invention and the new and old interlocking will be described below using the example of an exit from STW-old ( 1 ) in the direction of the block with entry into STW-neu ( 13 ). The functions permit release and "permission handles" are in the concrete example the possible block operations.

In front a move of a train from left to right, so from the area STW-old in the direction of STW-new, as a prerequisite first the permit on the side of the deflating neighboring station STW-old (left), the block must be in basic position and must not be disturbed. The section must be free and the track vacancy may not be disturbed.

In STW-old the following reactions and processes occur:
The extension train N1 at the neighboring STW-alt (STW-old) is set by the operator of the STW-old. If the block basic position is given and the permission exists in the STW old, a renewed permission change is first technically blocked and the successful basic position check is saved. The block lock is now active and prevents further routes in the direction of the route. The active block lock is indicated by the illuminated exit blocking detector. The extension signal N1 may now show travel. The continuous monitoring of the track track approval and the permission becomes active in the STW old.

The train now leaves and occupies the last train detection section 1.4 , then the extension signal N1 stops. The associated track occupancy checker in the block group stores this information of the last station section until all the conditions of the block basic position have been met. Occupying the section N / P drop off the free fields of the route and the busy message of the route is turned on via the associated track occupancy tester and transmitted to STW new. In the block group, among other things, the corresponding block relays and the stop signal of the signal F drop off.

In the device according to the invention and in the STW-new, the following reactions and sequences occur:
In the STW new the track occupied information sent by the neighbor STW-old is received and processed in the device according to the invention in such a way that the block segment detector in the STW red is switched on and the block alarm clock or the associated acoustic alarm is activated. Also, the hold notification information of the signal A is disabled in the block logic. This has the consequence that neither stop nor drive message are transmitted to STW-old.

in the STW-old is now neither stop nor drive from signal A of STW-new receive. In STW-old the block examiner pulls on and stops itself when essential relays of block technology dropped off have or have worked.

The train now drives the last train detection section 1.4 free. The extension train road is disbanded, the associated track vacancy detector and the driveway blocker of the block technology in the STW old train again.

Now the entry train A is reset by the operator of the STW. The drive message of the signal A is then from the device according to the invention detected and sent to the STW-old. The STW-old receives the driving information of the signal A. Also is still the Busy information of the track from STW-old to STW-retransmitted.

The train now occupies the entrance section 1.1 and the following section 1.2 in STW-new. The device according to the invention switches off the relevant track vacancy information in the block logic. With occupancy of the section 1.2 If the entry signal A falls into the stop position, the device according to the invention then switches off the state "drive signal A" to the STW old.

Of the Train now clears the track N / P. Come in the STW-old the corresponding track vacancies in basic position (suit), the associated track occupancy tester of the line falls and thus switches the state "busy information of Route N / P "to STW-new. In STW-new, the shutdown of the Busy information from the device according to the invention recognized, all related track occupancy information come back to their basic position. The halt message of the signal A can now be sent back to the STW-old.

The STW-alt receives the stop information of the signal A and can turn on the missing block relay, the block lock goes back to normal, the block checker and the still stored function of the track occupancy checker for the track section 1.4 will be switched off. The exit lock detector in the STW-old goes out.

The Block technology is back in basic position.

at Rides from STW-new in the direction of STW-old can be the aforementioned Processes are symbolically mirrored.

1

neighboring interlocking (with existing route safety device) STW-old

2

transmission to the neighboring interlocking

3

Blockanpasslogik

4

commands and messages

5

diagnosis

6

normalized Information exchange between STW-new and the invention contraption

7

Input / output modules of the new signal box

8th

Isolation relay / level converter

9

SPS Type A

10

SPS Type B

11

comparator

12

power supply

13

signal box STW-new

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• DE 102005043305 A1 [0004]

Claims (4)

Device for universal signal-technically safe adaptation of at least one interlocking with at least one block device of any type for securing the block sections belonging to this interlocking free route to at least one adjacent interlocking, the existing and / or approved transmission modules can be used, characterized that the matching circuit, from a. at least one system of programmable logic controllers (PLCs) and b. An available secure transmission technology on the PLC system and the participating interlockings exchange information in a standardized manner, the PLC system, the relevant relay circuits of the block groups and thus the functions of the block logic at least one existing interlocking on the adapted to the new interlocking Page takes over. Device for implementing a universal signaling technology Safe route safety technology according to claim 1, characterized in that that the PLC system is at the location of the at least one new interlocking or at the location of the at least one existing signal box or in at least one decentralized switching house is placed. Device for implementing a universal signaling technology Safe route safety technology according to at least one of the previous Claims, characterized in that the PLC system consists of at least two diversified PLC controllers, in each of which the block matching logic is realized, each one PLC checks the states for plausibility and then the PLC system the functions and results of the diverse SPS controllers and in case of a match, the data for forwarding releases the new signal box. Device for implementing a universal signaling technology Safe route safety technology according to at least one of the previous Claims, characterized in that a diagnostic unit status and diagnostic information provides all the essential information states of the block.