EP2694351A1 - Train control system with pulse code-modulated cab signaling - Google Patents

Train control system with pulse code-modulated cab signaling

Info

Publication number
EP2694351A1
EP2694351A1 EP12721256.1A EP12721256A EP2694351A1 EP 2694351 A1 EP2694351 A1 EP 2694351A1 EP 12721256 A EP12721256 A EP 12721256A EP 2694351 A1 EP2694351 A1 EP 2694351A1
Authority
EP
European Patent Office
Prior art keywords
track
code
transmitting
signal generator
travel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12721256.1A
Other languages
German (de)
French (fr)
Other versions
EP2694351B1 (en
Inventor
Peer Bohlmann
Gerald Lude
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE201110076047 priority Critical patent/DE102011076047A1/en
Application filed by Siemens AG filed Critical Siemens AG
Priority to PCT/EP2012/058621 priority patent/WO2012156268A1/en
Publication of EP2694351A1 publication Critical patent/EP2694351A1/en
Application granted granted Critical
Publication of EP2694351B1 publication Critical patent/EP2694351B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00Devices along the route controlled by interaction with the vehicle or vehicle train, e.g. pedals
    • B61L1/18Railway track circuits
    • B61L1/181Details
    • B61L1/188Use of coded current
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00Control, warning, or like safety means along the route or between vehicles or vehicle trains
    • B61L23/22Control, warning, or like safety means along the route or between vehicles or vehicle trains for controlling traffic in two directions over the same pair of rails
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00Devices along the route for controlling devices on the vehicle or vehicle train, e.g. to release brake, to operate a warning signal
    • B61L3/16Continuous control along the route
    • B61L3/22Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation
    • B61L3/24Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation employing different frequencies or coded pulse groups, e.g. in combination with track circuits
    • B61L3/246Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation employing different frequencies or coded pulse groups, e.g. in combination with track circuits using coded current

Abstract

The invention relates to a train control system with pulse code-modulated cab signaling, especially for defining traveling speeds, a code generator (7.1, 7.2) acting upon a signal generator (8) depending on the direction of travel, the output signal of which signal generator is supplied to a current track circuit (4.1, 4.2, 4.3) covering a track section (3.1, 3.2, 3.3). In order to economize on components, the signal generator (8) comprises a transmitting device (9) for modulating the input signals of both code generators (7.1, 7.2), the transmitting device (9) being connected to circuit connection adaption devices (10.1, 10.2) on one of the two access ends (5.1, 5.2) of the track section (3.1, 3.2, 3.3) via travel direction-specific outputs (11.1, 11.2).

Description

description

Train protection system with pulse code modulated cab signaling

The invention relates to a train protection system with pulse-code-modulated cab signaling, in particular for setting driving speeds, wherein a code generator depends on the direction of travel, a signal generator, whose output signal is fed into a track section comprehensive track circuit.

In this type of cab signaling is on a fundamental frequency, for example, 100 Hz, 250 Hz or 60 Hz, a pulse code, for example, 180 pulses per minute, 120 pulses per minute, 75 pulses per minute or 0 pulses per minute, that of the Driver's station of a rail vehicle to be transmitted information, for example, the maximum Fahrtgeschwindig ¬ speed corresponds, transmit. A track circuit is used as a transmission medium, wherein the feeding of the information depending on the entrance direction of the rail vehicle in the Gleisab ¬ section of the track circuit to one or the other end of the track section takes place. This requires two separate transmission channels, of which one channel must be switched passively, depending on the direction of travel, while the second channel is actively used for signal generation.

This principle for cab signaling is widespread, especially in the US. In the basic version, four different pulse codes are generated by means of the code generator, whereby four speed specifications are possible. The two direction of travel-specific transmission channels per track section or information section consist essentially of the code generator, the signal generator and a connection device for feeding the information in the track circuit. The invention has for its object to provide a train assurance ¬ system of the generic type, which is characterized by simpler structure, in particular by fewer components.

According to the invention, the object is achieved in that the signal generator has a transmitting device for signal modulation of the input signals of both code generators and that the transmitting device is connected via travel-specific outputs each with a track connection adjustment device at one of the two entry ends of the track section.

In this way, a single-channel architecture becomes possible for signal modulation. The well-known Zweikanaligkeit with a doubling of all components is much easier. Instead of two signal generators per track section only a single one is required.

It is particularly advantageous that the transmitting device can be designed with the direction of travel specific outputs in the manner of a transmitting device for an audio-frequency track circuit. By virtually misused use of the transmitting device of an intended for the track vacancy audio frequency track circuit is a, in particular with regard to the development effort, simple Reali ¬ tion of the single-channel signal generator possible.

The direction of travel is switched by driving one of the two outputs of the transmitting device, whereby only the required of the two track connection adjusting devices is driven at the entrance ends of the track section.

According to claim 2, it is provided that the track connection adapter is designed to adapt an output voltage of the transmitter to a track-connection voltage and its galvanic isolation. This track connection adapter with transformer voltage adjustment can also be provided by a track connection module of a railway signaling system. Anläge be adapted by means of track circuit. Is particularly suitable for this the siding component of a low-frequency-¬-track circuit. According to claim 3, it is provided that the track connection adapter device is connected to the two transmission devices of adjacent track sections of assigned signal generators. This shared use of the signal generator for two adjacent track sections, ie, information sections, results in a particularly low hardware outlay.

The invention based on a figurative Darge ¬ presented embodiment will be explained in more detail. The figure shows the essential components of a train control system according to the invention. It can be seen that a track which can be driven in both directions of travel 1 and 2 is divided into track sections 3.1, 3.2, 3.3. The Gleisab ¬ sections 3.1, 3.2, 3.3 are doing to track circuits 4.1, 4.2, 4.3, in their driveway ends 5.1 and 5.2 information, particularly regarding speed limits, are fed to a over-propelled rail vehicle. The information is given in a signal box 6 for each direction of travel 1 and 2 by means of a code generator 7.1 and 7.2 in the form of duty cycles. A duty cycle of 180 pulses per minute stands for free distance, 120 pulses per minute for lower speed, etc. This pulse code is supplied to the respective direction of travel 1 and 2 a signal generator 8, which consists essentially of a transmitting device 9 and There are two siding adapters 10.1 and 10.2. The transmitting device 9 generates an output signal at a fundamental frequency, for example 60 Hz, with the duty cycle supplied by the code generator 7.1, 7.2. Depending on the direction of travel-dependent origin of pulse code, the output signal of the Sendeein ¬ device 9 via a first output or a second output 11.1 11.2 10.1 and 10.2 is forwarded obligations to one of the two Gleisanschlussanpasseinrich-. The siding Passeninrichtungen 10.1 and 10.2 are located outside of the interlocking 6 in the vicinity of the entry end 5.1 or 5.2 of the track circuit 4.1, 4.2, 4.3 and have essentially the function of a feed transformer, which downruns the output voltage of the transmitted pulses to a few volts. Each track connection adapter 10.1 and 10.2 is connected to the entry ends 5.1 and 5.2 immediately adjacent track circuits and thus also associated with these Signalge ¬ generators 8. Due to the two connection variants for both directions of travel 1 and 2, only one signal generator 8 is required for each track section 3.1, 3.2, 3.3 of each track circuit 4.1, 4.2, 4.3.

Claims

claims
1. Train protection system with pulse-code-modulated driver status signaling, in particular for setting driving speeds, wherein a code generator (7.1, 7.2) acts upon a signal generator (8), whose output signal is fed into a track section (3.1, 3.2, 3.3) comprehensive track circuit (4.1, 4.2, 4.3) is fed ¬
d a d u r c h e c e n c i n e s that
the signal generator (8) has a transmitting device (9) for signal modulation of the input signals of both code generators (7.1, 7.2) and that the transmitting device (9) via travel-specific outputs (11.1, 11.2) each with a track connection adapter (10.1, 10.2) is connected to one of the two entry ends (5.1, 5.2) of the track section (3.1, 3.2, 3.3).
2. Train protection system according to claim 1,
d a d u r c h e c e n c i n e s that
the track connection adaptation device (10.1, 10.2) is designed to adapt an output voltage of the transmission device (9) to a track connection voltage and its galvanic isolation.
3. Train protection system according to one of the preceding claims,
d a d u r c h e c e n c i n e s that
the track connection adaptation device (10.1, 10.2) with the track sections adjacent to the two transmission devices (9)
(3.1, 3.2, 3.3) associated signal generators (8) is connected.
EP12721256.1A 2011-05-18 2012-05-10 Train control system with pulse code-modulated cab signaling Active EP2694351B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE201110076047 DE102011076047A1 (en) 2011-05-18 2011-05-18 Train protection system with pulse code modulated cab signaling
PCT/EP2012/058621 WO2012156268A1 (en) 2011-05-18 2012-05-10 Train control system with pulse code-modulated cab signaling

Publications (2)

Publication Number Publication Date
EP2694351A1 true EP2694351A1 (en) 2014-02-12
EP2694351B1 EP2694351B1 (en) 2015-06-24

Family

ID=46085600

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12721256.1A Active EP2694351B1 (en) 2011-05-18 2012-05-10 Train control system with pulse code-modulated cab signaling

Country Status (6)

Country Link
US (1) US8998147B2 (en)
EP (1) EP2694351B1 (en)
CN (1) CN103534162B (en)
DE (1) DE102011076047A1 (en)
ES (1) ES2542708T3 (en)
WO (1) WO2012156268A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011076047A1 (en) * 2011-05-18 2012-11-22 Siemens Aktiengesellschaft Train protection system with pulse code modulated cab signaling
ITTO20120695A1 (en) * 2012-08-02 2014-02-03 Ansaldo Sts Spa Circuit act binary sending of signaling information along a railway line to a vehicle that passes along the railway line itself

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US3829682A (en) * 1971-01-11 1974-08-13 Erico Prod Inc Pulse coded railway signal system
DE3436431C2 (en) * 1984-10-04 1988-06-23 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
GB9122438D0 (en) * 1991-10-23 1991-12-04 Westinghouse Brake & Signal Railway track circuits
DE4335380C1 (en) * 1993-10-16 1995-03-30 Doehler Peter Dipl Kaufm Circuit for the occupied indication of track sections in a model railway
DE4413183A1 (en) * 1994-04-12 1995-10-19 Siemens Ag Railway line sections train traffic control system
US6102340A (en) * 1997-02-07 2000-08-15 Ge-Harris Railway Electronics, Llc Broken rail detection system and method
ITSV20020008A1 (en) * 2002-02-22 2003-08-22 Alstom Transp Spa System for detecting the condition of free / busy of a railway line or the like, and for digital communication with trains
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Also Published As

Publication number Publication date
WO2012156268A1 (en) 2012-11-22
US8998147B2 (en) 2015-04-07
EP2694351B1 (en) 2015-06-24
CN103534162B (en) 2016-08-17
DE102011076047A1 (en) 2012-11-22
CN103534162A (en) 2014-01-22
ES2542708T3 (en) 2015-08-10
US20140103167A1 (en) 2014-04-17

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