EP1886893A1 - Procédé de transmission de données à bord d'un véhicule ferroviaire, et véhicule ferroviaire correspondant - Google Patents

Procédé de transmission de données à bord d'un véhicule ferroviaire, et véhicule ferroviaire correspondant Download PDF

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Publication number
EP1886893A1
EP1886893A1 EP06405342A EP06405342A EP1886893A1 EP 1886893 A1 EP1886893 A1 EP 1886893A1 EP 06405342 A EP06405342 A EP 06405342A EP 06405342 A EP06405342 A EP 06405342A EP 1886893 A1 EP1886893 A1 EP 1886893A1
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EP
European Patent Office
Prior art keywords
unit
information bus
vehicle
coupling
coupling device
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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.)
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Application number
EP06405342A
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German (de)
English (en)
Inventor
Markus Bittner
Hanspeter Widmer
Nicolas Müller
Jörg Furrer
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Ascom Schweiz AG
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Ascom Schweiz AG
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Publication date
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Priority to EP06405342A priority Critical patent/EP1886893A1/fr
Publication of EP1886893A1 publication Critical patent/EP1886893A1/fr
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L15/00—Indicators provided on the vehicle or train for signalling purposes
    • B61L15/0018—Communication with or on the vehicle or train
    • B61L15/0036—Conductor-based, e.g. using CAN-Bus, train-line or optical fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or trains
    • B61L25/028—Determination of vehicle position and orientation within a train consist, e.g. serialisation

Definitions

  • the invention relates to a rail vehicle with one or more vehicle units, each comprising one or more cars, wherein at least one vehicle unit comprises a designed for a narrow-band data transmission, unit-internal information bus, and the at least one vehicle unit at one of its ends an information bus coupling comprises, by means of which unit-internal information bus this at least one vehicle unit with a unit-internal information bus another vehicle unit to a unit-comprehensive information bus is interconnected. Furthermore, the invention relates to a method for data transmission in such a rail vehicle.
  • Such a narrow-band data transmission in trains typically has a corresponding information bus installed.
  • An example of such an information bus is the UIC (union international des chemins de fer), which typically comprises a plurality of insulated copper conductors, each having a cross-sectional area of the order of 1 square millimeter.
  • UIC union international des chemins de fer
  • These cables typically have an EMC shielding comprising all conductors, a protective sheath as well as possibly one or more intermediate layers of plastic strips.
  • One of the line pairs of this UIC cable is used for example for service messages, another for announcements to the passengers.
  • Other lines are used as control lines for lighting control or in rail vehicles with more than one locomotive or railcar also for the multi-traction control.
  • the inter-carriage clutches of the information bus the most common ramifications (the cables are often split at the ends of a car), the devices connected to the bus (such as clocked electronic circuits), the fact that the individual pairs of such information busses are typical are not separately shielded and other factors, however, affect the transmission characteristics of this information bus in a negative way.
  • Such information buses have at high frequencies, for example, a poor symmetry, are usually not finished clean at the respective ends and often even have a total reflection and correspondingly inhomogeneous characteristic impedance as well as a high transit time dispersion. As a rule, such information busses also result in frequency-selective and time-selective disturbances. All of these characteristics generally limit the achievable data rates greatly.
  • Such communication systems include, for example, an in-car Ethernet that includes one or more Ethernet switches.
  • an in-car Ethernet that includes one or more Ethernet switches.
  • compositions of cars are distinguished by the fact that they comprise several carriages, but that the individual carriages of a composition are usually no longer separated once they have been put together.
  • a single car or such a car composition is referred to below as a vehicle unit. Accordingly, it is possible to interconnect the wideband communication systems of the individual carriages of a composition by means of appropriate wiring to one another to a cart-wide broadband communication system, so that in all cars a composition accessible broadband communication system such.
  • B. an Ethernet is available.
  • the object of the invention is to provide a rail vehicle belonging to the technical field mentioned at the outset or a method for data transmission which permits broadband data transmission both within a vehicle unit and between two or more vehicle units coupled to one another.
  • the solution of the problem is defined by the features of claim 1.
  • a rail vehicle having one or more vehicle units each comprising one or more cars, at least one vehicle unit having an in-vehicle information bus (hereinafter referred to as unit-internal) designed for narrow-band data transmission and the at least one vehicle unit having an information bus connector at one of its ends
  • the at least one vehicle unit according to the invention comprises at least one coupling device which is connected to the unit-internal information bus of the at least one vehicle unit and with which the at least one vehicle unit can be interconnected with a unit-internal information bus of another vehicle unit to form a unit-spanning information bus which broadband data signals can be decoupled from the unit-internal information bus or into the unit-internal information bus ei can be coupled and transmitted via the unit-internal information bus.
  • narrow-band data transmission is understood below to mean a transmission of data signals whose frequency spectrum is below 1 MHz.
  • broadband data transmission is used hereinafter to describe a transmission of data signals whose frequency spectrum is above 1 MHz, typically between 2 MHz and 34 MHz, understood.
  • narrow-band data signal is intended to encompass those data signals which, on the one hand, have a narrow bandwidth and, on the other hand, whose frequency spectrum is below 1 MHz.
  • broadband data signal should include those data signals which on the one hand have a high bandwidth and whose frequency spectrum on the other hand is above 1 MHz.
  • narrowband data signals are transmitted in a known manner, which typically include analog, low-frequency signals or narrow-band digital signals each having a frequency spectrum below 1 MHz. Since the information bus designed for narrow-band data transmission is now also used according to the invention for the transmission of broadband data signals with a frequency spectrum above 1 MHz, the information bus can be optimally utilized for broadband data transmission.
  • a passenger can be offered modern multimedia applications in which it is necessary to transmit broadband data signals with data rates of over 100 kbit / s, whose frequency spectrums are in the frequency range of a few hundred kHz to a few MHz.
  • Such applications include, for example, Internet access, which allows the passenger to "surf" the Internet while traveling by vehicle.
  • Another possible application is, for example, that the passenger can individually select a film from a centrally stored selection of films and display them on a personal monitor.
  • the transmission technology used In order to be able to realize a broadband data transmission via such a transmission medium as the information bus described above, the transmission technology used must be able to co-exist in particular with the already existing applications of the information bus. Ie. the transmission technology used may only use the frequency range above 1 MHz, in particular those between 2 MHz and 34 MHz, for signal transmission. It should also have efficient channel coding with strong error correction to correct for transmission errors caused by the high noise levels. In addition, it is advantageous if you have an adaptive, carrier-selective bit loading allows, which adapts to the channel conditions at the respective Beaureuqenz so that can be used efficiently in multi-carrier modulation method of the frequency and time-selective channel. In other modulation methods, in particular in glancemodulationshabilit devices should be provided for adaptive channel equalization.
  • Known transmission technologies such as Ethernet do not meet these conditions and are therefore not suitable for the transmission of broadband data signals over the information bus.
  • An example of a transmission technology that meets these conditions is Powerline technology, which was originally developed to transmit data at high data rates over power grids.
  • the Powerline technology is very robust in terms of all kinds of interference and imperfections in the transmission medium and is therefore preferably used to realize the transmission of the broadband data signals via the information bus in rail vehicles. Since this technology uses the frequency range above 1 MHz, it also coexists well with the methods used in the prior art for data transmission over the information bus in the frequency range below 1 MHz.
  • data transmission within a vehicle unit can be achieved by connecting a plurality of coupling devices at different locations within a vehicle unit to the information bus.
  • At least one vehicle unit comprises a separate, unit-internal communication device for transmitting data signals, in particular a communication device for a Broadband data transmission of data signals with a frequency spectrum above 1 MHz.
  • a communication device for a Broadband data transmission of data signals with a frequency spectrum above 1 MHz In the vehicle units, for example, an Ethernet network can be installed.
  • the unit-internal communication device can also be a narrowband network, z. B. be a network according to RS 232.
  • Such a unit-internal communication device typically comprises a transmission medium and one or more data processing or data terminals which are connected to the transmission medium.
  • a transmission medium suitable for data transmission should also be understood below without permanently connected data processing or data terminals.
  • a single Ethernet cable laid in the vehicle unit should also be subsumed under this term.
  • the coupling device is now connected to the unit-internal communication device and the data signals can be coupled in and out of the unit-internal information bus with the coupling device from the unit-internal communication device and can be coupled into the unit-internal communication device.
  • the rail vehicle comprises two adjacent vehicle units, each comprising an in-unit communication device, a unit-internal information bus and an information bus coupling at one of its ends, the two unit information buses being interconnected with these information bus clutches to form a cross-unit information bus.
  • the broadband data signals between the in-unit communication devices of the two vehicle units with one for the used, in-unit communication device are used to transmit the data signals within a vehicle unit or between two vehicle units transparent point-to-point transmission over the cross-unit information bus.
  • the two in-unit communication devices of the two vehicle units are virtually connected together to form a single unit-spanning communication device.
  • the coupling devices in this case are each preferably arranged at that end of a vehicle unit with the information bus coupling. Thereby, the attenuation of the signals in the transmission between the coupling devices can be kept small and higher data rates can be achieved.
  • the coupling devices in this case each comprise a low-pass filter with a cut-off frequency of typically less than 1 MHz.
  • This low-pass filter is connected on a side facing away from the information bus coupling side of the coupling device in the unit-internal information bus and thus suppresses the spread of transmitted on the information bus, broadband data signals in this direction, ie seen from the coupling device in the opposite direction of the information bus coupling.
  • these low-pass filters also keep high-frequency interference away from the coupling devices, which originate on the other side of the coupling device and could adversely affect the broadband data transmission.
  • these additional low-pass filters can also be omitted since the natural attenuation of the information bus is sufficient to suppress the transmission of the data signals between two coupling devices of the same vehicle unit, which is undesired in bridge mode.
  • the coupling devices may be operated in a mode called bus mode.
  • the rail vehicle comprises two vehicle units, each comprising an in-unit information bus and at one of its ends an information bus coupling, the two unit-internal information buses being interconnected with the information bus couplings to form a cross-unit information bus.
  • the two vehicle units continuous information bus used quasi as a cross-unit backbone over which the broadband data signals are transmitted with a point-to-multipoint transmission.
  • usually only a single coupling device per vehicle unit is required and for the cross-unit data transmission, unlike the bridge mode no additional communication device must be provided.
  • the two vehicle units each have, in addition to the information bus, an in-unit communication device (as already described above), wherein typically a data processing device is connected to such an in-unit communication device.
  • the coupling devices of the two vehicle units are each also connected to this unit-internal communication device and the broadband data signals are transmitted via the coupling devices from or to such a data processing device.
  • the coupled from a coupling device in the cross-unit information bus data signals from any other, also connected to this cross-unit information bus coupling device can be received.
  • one or more of the coupling devices are operated in a repeater mode.
  • this mode is not used in place of the bus mode but in addition to the bus mode.
  • a data signal from a first coupling device is coupled into the information bus, received by a coupling device operated in the repeater mode, regenerated by this and coupled back into the information bus and transmitted to a next coupling device.
  • this data signals can be transmitted from the first to the next coupling device, even if the attenuation of a transmitted signal would be too large to bridge the distance between these two coupling devices directly.
  • the object of the invention to provide a method for transmitting data in a rail vehicle with one or more vehicle units, each comprising one or more cars and each one designed for a narrow-band data transmission, unit-internal information bus is defined by the features of claim 9.
  • the broadband data signals are transmitted via the unit-internal information bus by being coupled to a first coupling device of one of the vehicle units in the unit-internal information bus, transmitted via the unit-internal information bus and coupled to a second coupling device of one of the vehicle units from the unit-internal information bus.
  • the frequency spectrum of the broadband data signals to be transmitted is above 1 MHz, they can be transmitted via the information bus simultaneously with the narrowband data signals whose frequency spectrum is below 1 MHz, without these having a negative influence on each other.
  • the broadband data signals are transmitted in a rail vehicle with two vehicle units, wherein the unit-internal information buses of the two vehicle units are interconnected by means of information bus couplings of the vehicle units to form a unit-spanning information bus.
  • the broadband data signals are transmitted from a first coupling device of a first vehicle unit via the unit-overlapping information bus to a second coupling device of a second vehicle unit.
  • the broadband data signals are transmitted across the information bus couplings from one vehicle unit to the other vehicle unit.
  • the two vehicle units each comprise a unit-internal communication device as already described above, wherein the broadband data signals are transmitted between these two communication devices by receiving with a first coupling device of one of the two vehicle units from their unit-internal communication device via the cross-unit information bus, d. H. via the information bus of the two vehicle units connecting information bus clutches, transmitted to the second coupling device and supplied from a second coupling device of the second vehicle unit whose unit-internal communication device.
  • the unit-internal communication devices of the two vehicle units in a preferred embodiment interconnected by means of the coupling devices to a cross-unit communication network by the coupling devices operated in a bridge mode and the broadband data signals between the unit-internal communication devices of the two vehicle units are transmitted by means of a point-to-point transmission.
  • the coupling devices are used to transmit data redundantly. Ie. the information content of a narrowband data signal which is transmitted via the information bus between the vehicle units is transmitted for the purpose of redundancy by means of the coupling devices at least partially and substantially simultaneously as part of a broadband data signal via the unitary information bus between the vehicle units.
  • the probability that the information content to be transmitted actually reaches its destination can be increased without the corresponding data having to be transmitted several times in succession as a narrow-band data signal via the information bus.
  • the information content of the narrowband data signals is transmitted even with bad contacts of the information bus couplings, thanks to the capacitance and the mutual inductance between the wires serving the transmission of the narrowband data signal and the other wires of the information bus. At the high frequencies of the broadband data signal, these capacitances and mutual inductances become effective.
  • the coupling devices are operated in a bus mode and the broadband data signals are transmitted by means of a point-to-multipoint transmission via the unit-spanning information bus.
  • At least one coupling device is operated in a repeater mode in that the broadband data signals of a first coupling device of at least one of these Coupling device to be received, regenerated and transmitted to a next coupling device.
  • the coupling devices are used to determine the order of the vehicle units. This is done by first the signal attenuation between the coupling devices is determined when a data signal is transmitted between them. As a function of this signal attenuation, the order of the vehicle units is subsequently determined.
  • the reception levels of the broadband data signals emitted by the other coupling devices are measured by a specific coupling device, of which in each case the transmission levels are known. From the known transmission level and the measured reception level, the attenuation is determined on the information bus between the two coupling devices concerned. Assuming that a coupling device of the measuring coupling device is the farther away, the greater this attenuation fails, the order of the coupling devices and hence also that of the associated vehicle units can be determined.
  • FIG. 1 shows a vehicle unit according to the invention, in this case a single railroad car 1, which comprises an information bus 2 with information bus couplings 3, a carriage-internal communication network 4 and a coupling device 5.
  • the coupling device 5 is connected both to the information bus 2, as well as to the communication network 4.
  • the information bus couplings 3 should not be confused with the car couplings (not shown), with which several such railway cars 1 are coupled together.
  • the information bus clutches 3 are integrated into these car clutches, as it were, so that the information buses of different carriages are automatically connected together to form an information wide bus when two such railway carriages 1 are coupled to each other.
  • the information bus 2 is physically, for example, a so-called Buchbustent, for example, a UIC Switzerlandbustent- Such UIC cable is available in different versions, each with more or fewer wires / cable pairs. While the wires of these UIC cables are typically not shielded separately, there are also designs which include one or more separately shielded pairs of conductors. Such UIC cables are used, for example, for the so-called "integrated on-board information systems" (IBIS). If a separately shielded pair of conductors is present, it is preferably used for the transmission of the broadband data signals.
  • IBIS integrated on-board information systems
  • the coupling device 5 comprises not only a bus coupler, the responce the data signals from or in the information bus 2, respectively. but also typically a modem part and an interface to the communication network 4. It may also include other parts and interfaces.
  • the communication network 4 may in itself be any network via which data signals can be transmitted. In this case, it is an Ethernet network, wherein the coupling device 5 comprises an Ethernet interface, via which it is connected with a corresponding Ethernet cable to the communication network 4, which includes, for example, one or more (not shown) Ethernet switches ,
  • broadband data whose frequency range is above 1 MHz can now be coupled into the information bus 2, transmitted via this and decoupled from the information bus 2 with another coupling device of another railway carriage.
  • the communication network 4 can also be omitted.
  • the broadband data signals are transmitted via the information bus 2, coupled out of the information bus 2 by a coupling device 5 and optionally processed and sent to another one Coupling be forwarded without the data thus transmitted would have to be transmitted via the communication network 4 to another device.
  • a single data processing or data terminal such as a computer, a display / screen, a video camera or similar device is provided which via a corresponding communication connection (wired or wireless) to the coupling device 5 is connectable.
  • Fig. 2 shows a railway vehicle according to the invention, which comprises a composition 6, which consists of three firmly coupled to each carriage 6.1, 6.2, 6.3.
  • a composition 6 which consists of three firmly coupled to each carriage 6.1, 6.2, 6.3.
  • the individual carriages 6.1, 6.2, 6.3 of such a composition 6 can certainly be separated from each other, this is typically not done, so that the individual communication networks 4.1, 4.2, 4.3 are firmly connected to a single, composition-wide communication network 4, as shown schematically in Fig. 3 is shown.
  • FIG. 4 shows a further rail vehicle according to the invention with a plurality of vehicle units, ie the individual cars 1.1, 1.2, 1.3 and a locomotive 7 (or also a railcar) which are coupled together to form a train.
  • the locomotive 7 comprises a coupling device 5.1 connected to its information bus 2, and each carriage 3.1, 1.2, 1.3 comprises two coupling devices 5.2 and 5.3, 5.4 and 5.5, and 5.6 and 5.7, which are arranged at each end of the carriages 1.1, 1_2, 1_3.
  • These coupling devices 5.1 - 5.7 are operated in bridge mode.
  • the data signals are transmitted only between two adjacent coupling devices, ie between the coupling devices 5.1 and 5.2, the coupling devices 5.3 and 5.4, the coupling devices 5.5 and 5.6, etc. via the information bus 2 to each of the communication networks 4.1, 4.2, 4.3 adjacent vehicle units with each other connect.
  • These pairs of coupling devices each form a bridge between the corresponding communication networks 4.1, 4.2, 4.3, via which the signals between the individual communication networks 4.1, 4.2, 4.3 are transmitted transparently.
  • the signals are therefore transmitted only on the short sections of the information bus 2 between two coupling devices of adjacent cars, which allows high data rates, because the channel attenuation on these short connectors low and the signal-to-noise ratio is correspondingly high.
  • the coupling devices 5.1-5.7 are in this case each with a low-pass filter, hereinafter also referred to simply as a filter equipped, which are each arranged on that side of a coupling device 5.1-5.7, which the information bus 3 of the corresponding car 1.1, 1.2, 1.3 or locomotive is opposite.
  • These filters serve to suppress the transmission of the broadband data signals within a carriage 1.2, 13, 1.4 via the information bus 2 to the respective other coupling device of this car 1.2, 1.3, 1.4.
  • the lying between these low-pass filters piece of information bus 2 each car 1.2, 1.3, 1.4 is therefore shown in dashed lines.
  • the Ethernet interface of the coupling device 5.1 is not as in the car 1.1, 1.2, 1.3 with an Ethernet switch (not shown), but directly to a data processing device, in this case a server 8, connected, from which For example, large amounts of data can be transmitted to the individual Wgen 1.1, 1.2, 1.3.
  • the server 8 is connected, for example, via a (not shown) connection to the Internet, which allows a passenger in one of the car 1.1, 1_2, 1.3, to surf the Internet.
  • the server 8 includes a large memory on which the films mentioned above are stored, from where they can download a passenger in a car 1.1, 1.2, 1.3 and, as mentioned, on a personal (or common) screen.
  • the bus coupler 9 is shown, as it is installed, for example, in the coupling devices 5.1-5.7.
  • the bus coupler 9 is designed for inductive coupling of the data signals in and out of the information bus 2 and has a low inductance. It comprises a first information bus terminal 10 with two terminals 10.1, 10.2, a second information bus terminal 11 with two terminals 11.1, 11.2, a modem interface 16 with two terminals 16.1, 16.2, a coupling circuit 12, a Tieputzfilter 14 and between the coupling circuit 12 and the modem interface 16 switched transient protection 15.
  • the bus coupler 9 is in each case in the Information bus 2 turned on.
  • the conductor pair of the information bus 2 used for the transmission of the broadband data signals is separated for this purpose, and the two ends of this pair of conductors are respectively connected to the bus coupler 9 at one of the two information bus connections 10, 11.
  • This separation of the information bus is of course preferably between two optionally existing anyway plugs so that the cable does not need to be damaged.
  • the coupling circuit 12 comprises two transformers 13, each with two windings 13.1, 13.2.
  • the two terminals 10.1, 10.2 of the first information bus terminal 10 are connected to one end of the windings 13.1 and the two other ends of the windings 13.1 are connected via the low-pass filter 14 to the second information bus terminal 11.
  • one end of the windings 13.2 of both transformers 13 are connected directly to one another and the respective other end of the windings 13.2 is connected to one of the connections 16.1, 16.2 of the modem interface 16.
  • the low-pass filter 14 each comprises an inductance 14.1 in the connecting lines between the ends of the windings 13.1 to the terminals 11.1, 11.2 of the second information bus terminal 11 and a respective capacitance 14.2 between the two ends of the windings 13.1 and between the two terminals 11.1, 11.2 of the second Informationsbusan gleiches 11.
  • the capacity of the two capacitances 14.2 is, for example, 10 nF in each case.
  • the transient protection 15 comprises four diodes 15.1, 15.2, 15.3, 15.4 in a full bridge circuit and a Schottky diode 15.5 whose anode is connected to the anodes of the diodes 15.1, 15.2 and whose cathode is connected to the cathodes of the diodes 15.3, 15.4 is.
  • the cathodes of the diode 15.1 and 15.2 are respectively combined with the anodes of the diodes 15.3 and 15.4 and connected on the one hand to the free end of each of the windings 13.2 as on the other hand with one of the terminals 16.1, 16.2 of the modem interface 16.
  • This low-pass filter results in a characteristic curve in which low-frequency signals below 100 kHz pass undamped through the filter, but at a frequency of 1.5 MHz already results in an attenuation of 40 dB.
  • a transmission technology should be used which has some specific properties so that it can coexist with the existing narrowband data transmission over the information bus.
  • a transmission technology should be used which has some specific properties so that it can coexist with the existing narrowband data transmission over the information bus.
  • it should only use the frequency range above 1 MHz, should have efficient channel coding with a strong error correction, and should allow for efficient channel utilization as far as possible an adaptive, carrier-selective bit loading.
  • PLC power line communication
  • the data transmitted by Ethernet protocol over the communication networks of the vehicle units are unpacked by a coupling device (or its modem part) and, in order to transmit them via the information bus by means of a PLC-specific protocol, are repackaged. At the receiving end, this repacking process is repeated and the user data again appear on the Ethernet interface of the coupling device.
  • the corresponding latency is typically less than 10 ms.
  • the technology used can also support special network protocols such as TCP / IP, DHCP, FTP, VLAN, http, STP, SNMP. These protocols are used, for example, for reading diagnostics data, for automatic IP address assignment, for file transfer, as access protection and for network management.
  • the payload data typically transmitted openly via the information bus can be encrypted with a corresponding algorithm (eg 802.1 Q VLAN, DES / 3DES).
  • the coupling devices may also have multiple interfaces (e.g., UPA powerline, 10/100 base-T, RS232).
  • FIG. 6 another rail vehicle is shown. This comprises several compositions 20.1, 20.2, 20.3 each with a plurality of carriages 20.11, 20.12, 20.13, 20.14, 20.21, 20.22, 20.23, 20.24, 20.31.
  • Each cart includes an information bus 2, which are interconnected by the information bus couplings 3 on each car to a cross-composition, ie rail vehicle-wide information bus 2.
  • Each cart further comprises an Ethernet network 17.1, with each of the two Ethernet networks 17.1 of adjacent carriages within a composition 20.1, 20.2, 20.3 being interconnected, so that these Ethernet networks 17.1 of all carriages of a composition 20.1, 20.2, 20.3 become one common , composition-internal, ie composition-wide Ethernet 17.0 are combined.
  • each composition comprises two coupling devices 5.8 operated in bridge mode, which in turn are respectively arranged at the ends of each composition and comprise a low-pass filter.
  • these data signals are generated approximately in the server 8 of the wagon 20.11 (which in this case is a railcar of this rail vehicle) and via the Ethernet network 17.0 of this composition 20.1 transmitted to the coupling device 5.8 in the car 20.14 at the other end of this composition 20.1.
  • the latter receives the data signal, couples it into the information bus 2, where it is transmitted via the information bus coupling 3 between the compositions 20.1 and 20.2 to the adjacent coupling device 5.8 in the carriage 20.21. This decouples the data signal from the information bus 2 and sends it via the Ethernet network 4 of this composition 20.2 to the desired location within this composition.
  • the low-pass filter of the coupling device 5.8 in the carriage 20.14 prevents the data signal from being transmitted via the composition-internal information bus 2 to the coupling device 5.8 in the carriage 20.11. Accordingly, the low-pass filter of the coupling device 5.8 in the carriage 20.21 prevents the data signal from being transmitted via the composition-internal information bus Z to the coupling device 5.8 in the carriage 20.14. Consequently, the broadband data signals are transmitted on the information bus 2 only via the information section sections 2.1 between two adjacent coupling devices 5.8 of two successive compositions 20.1 and 20.2 or 20.2 and 20.3.
  • Fig. 7 shows a schematic representation of the Ethernet network 17, by the interconnection of the individual, compositionally internal Ethernet networks 17.0 of the rail vehicle from Fig. 6 by means of operated in bridge mode coupling devices 5.8 arises.
  • Each cart includes at least one Ethernet switch 21, each connected to the Ethernet switch 21 of another cart of the same composition by a corresponding Ethernet cable 22.
  • the server 8 is connected to the Ethernet switch 21 of the car 20.11. Further, this Ethernet switch 21 of the car 20.11 is connected to the Ethernet switches 21 of the car 20.12 and 20.13, which in turn are in turn connected to the Ethemet switch 21 of the car 20.14. On the Ethernet switch 21 of this carriage 20.14 the coupling device 5.8 of this car is connected. This in turn is connected via the information bus section 2.1 between the compositions 20.1 and 20.2 with the coupling device 5.8 of the car 20:21. The ethernet switches 21 of the carriages 20.11, 20.12, 20.13 and 20.14 are thus joined together by the Ethernet cables 22 to form an annular Ethernet 17.0.
  • the Ethernet switches 21 of the car 20.21, 20.22, 20.23 and 20.24 of the composition 20.2 are connected by the Ethernet cable 22 to another annular Ethernet network 17.0, wherein the two Ethernet networks 17.0 of the compositions 20.1 and 20.2 through the coupling devices 5.8 of the car 20.14 and 20.21 and the intermediate information bus section 2.1 to the rail vehicle-wide, d. H. cross-composition Ethernet network 17 are joined together.
  • Ethernet-based protocols such as the LLDP (link layer discovery protocol)
  • LLDP link layer discovery protocol
  • Each car usually has its own name, typically in the form of a number, which is stored in a memory of this car, for example in a switch via dongle.
  • the order of the carriages must be determined otherwise.
  • the existing in the car 20.4, 20.5, 20.6, 20.7 coupling devices 5.8 namely operated in bus mode, so that the information bus 2 serves as a backbone for the transmission of broadband data signals between any two, anywhere connected to the information bus 2 coupling devices 5.8 .
  • the Ethernet networks 17.1 of the individual cars are therefore not combined to a cross-cart Ethernet network, which is why the LLDP for the order determination can not be used.
  • the order of the individual cars is determined by measuring the reception levels of the individual coupling devices 5.8. That Data signals, each with a specific transmission level, are transmitted via the information bus 2 and the level of the received data signal is determined at the receiving coupling device 5.8. The sequence between the two participating coupling devices 5.8 is then determined from the known transmission level and the measured reception level. From the order of coupling devices 5.8 can then determine the order of the car. The whole thing is typically done so that the signal attenuation is determined during the transmission of the data signals between a particular coupling device 5.8 and the other existing coupling devices 5.8.
  • the particular coupling device 5.8 used for this determination of receive levels is typically that in the foremost carriage 20.4 (typically a locomotive or a railcar) and is also referred to as a master. The remaining coupling devices are then usually referred to as slaves.
  • the invention in a rail vehicle in which the individual vehicle units have an information bus designed for narrow-band data transmission, which is interconnected via corresponding information bus couplings to form a rail vehicle-wide information bus, allows to realize a transmission of data signals with a high bandwidth and in the frequency range above 1 MHz both within a vehicle unit, as well as between several vehicle units.

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EP06405342A 2006-08-11 2006-08-11 Procédé de transmission de données à bord d'un véhicule ferroviaire, et véhicule ferroviaire correspondant Withdrawn EP1886893A1 (fr)

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WO2012004098A1 (fr) * 2010-07-08 2012-01-12 Siemens Aktiengesellschaft Réseau de commande pour un véhicule ferroviaire
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EP2670649A1 (fr) * 2011-04-18 2013-12-11 Siemens Aktiengesellschaft Procédé et dispositif permettant la communication à des fins de commande entre des éléments de train couplés
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WO2019242964A1 (fr) * 2018-06-18 2019-12-26 Siemens Mobility GmbH Utilisation d'un câble multiconducteur à quatre paires de conducteur torsadées et blindées les unes par rapport aux autres ou d'un câble à fibres optiques servant au câblage d'un véhicule ferroviaire, et véhicule ferroviaire
EP3666620A1 (fr) * 2018-12-12 2020-06-17 SpeedInnov Rame de véhicule ferroviaire et véhicule ferroviaire

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US9637147B2 (en) 2009-03-17 2017-05-02 General Electronic Company Data communication system and method
US8532850B2 (en) 2009-03-17 2013-09-10 General Electric Company System and method for communicating data in locomotive consist or other vehicle consist
US8583299B2 (en) 2009-03-17 2013-11-12 General Electric Company System and method for communicating data in a train having one or more locomotive consists
US9379775B2 (en) 2009-03-17 2016-06-28 General Electric Company Data communication system and method
US8935022B2 (en) 2009-03-17 2015-01-13 General Electric Company Data communication system and method
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US8825239B2 (en) 2010-05-19 2014-09-02 General Electric Company Communication system and method for a rail vehicle consist
US8655517B2 (en) 2010-05-19 2014-02-18 General Electric Company Communication system and method for a rail vehicle consist
RU2534180C2 (ru) * 2010-07-08 2014-11-27 Сименс Акциенгезелльшафт Сеть управления для рельсового транспортного средства
US8682514B2 (en) 2010-07-08 2014-03-25 Siemens Aktiengesellschaft Control network for a rail vehicle
WO2012004098A1 (fr) * 2010-07-08 2012-01-12 Siemens Aktiengesellschaft Réseau de commande pour un véhicule ferroviaire
US8702043B2 (en) 2010-09-28 2014-04-22 General Electric Company Rail vehicle control communication system and method for communicating with a rail vehicle
US10144440B2 (en) 2010-11-17 2018-12-04 General Electric Company Methods and systems for data communications
US9513630B2 (en) 2010-11-17 2016-12-06 General Electric Company Methods and systems for data communications
EP2670649A1 (fr) * 2011-04-18 2013-12-11 Siemens Aktiengesellschaft Procédé et dispositif permettant la communication à des fins de commande entre des éléments de train couplés
WO2012174382A1 (fr) * 2011-06-17 2012-12-20 General Electric Company Système et procédé pour la communication de données dans un véhicule de transport de passagers ou un train de véhicules
US8914170B2 (en) 2011-12-07 2014-12-16 General Electric Company System and method for communicating data in a vehicle system
US9650059B2 (en) 2012-05-23 2017-05-16 General Electric Company System and method for inspecting a route during movement of a vehicle system over the route
DE102013206723A1 (de) * 2013-04-15 2014-10-16 Marco Systemanalyse Und Entwicklung Gmbh Steuersystem
DE102013206723B4 (de) 2013-04-15 2022-07-07 Marco Systemanalyse Und Entwicklung Gmbh Steuersystem
DE102014214225A1 (de) * 2014-07-22 2015-07-02 Siemens Aktiengesellschaft Schienenfahrzeug mit einer Datenkommunikationseinrichtung
DE102017201770A1 (de) 2017-02-03 2018-08-09 Siemens Aktiengesellschaft Verfahren zum Einrichten eines gemeinsamen Netzwerkes zur Datenübertragung beim Kuppeln eines ersten Schienenfahrzeugs mit einem zweiten Schienenfahrzeug, Kupplungssystem, Schienenfahrzeug und Schienenfahrzeugflotte
WO2019015907A1 (fr) * 2017-07-20 2019-01-24 Siemens Aktiengesellschaft Dispositif et procédé de transmission de données pour transmettre des données entre une première unité de véhicule et une seconde unité de véhicule d'un véhicule guidé
RU199444U1 (ru) * 2017-07-20 2020-09-01 Сименс Мобилити Гмбх Устройство передачи данных между первой и второй транспортными единицами рельсового подвижного состава
WO2019242964A1 (fr) * 2018-06-18 2019-12-26 Siemens Mobility GmbH Utilisation d'un câble multiconducteur à quatre paires de conducteur torsadées et blindées les unes par rapport aux autres ou d'un câble à fibres optiques servant au câblage d'un véhicule ferroviaire, et véhicule ferroviaire
EP3666620A1 (fr) * 2018-12-12 2020-06-17 SpeedInnov Rame de véhicule ferroviaire et véhicule ferroviaire

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