EP3381167A1 - Verfahren zur informationsübertragung in einem kommunikationsnetz - Google Patents
Verfahren zur informationsübertragung in einem kommunikationsnetzInfo
- Publication number
- EP3381167A1 EP3381167A1 EP16815787.3A EP16815787A EP3381167A1 EP 3381167 A1 EP3381167 A1 EP 3381167A1 EP 16815787 A EP16815787 A EP 16815787A EP 3381167 A1 EP3381167 A1 EP 3381167A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- signal
- primary
- unit
- processing unit
- conditioning unit
- 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.)
- Withdrawn
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 127
- 238000004891 communication Methods 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000012545 processing Methods 0.000 claims abstract description 82
- 230000003750 conditioning effect Effects 0.000 claims description 76
- 230000003321 amplification Effects 0.000 claims description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 5
- 230000008054 signal transmission Effects 0.000 description 9
- 238000011161 development Methods 0.000 description 7
- 230000018109 developmental process Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4604—LAN interconnection over a backbone network, e.g. Internet, Frame Relay
- H04L12/462—LAN interconnection over a bridge based backbone
- H04L12/4625—Single bridge functionality, e.g. connection of two networks over a single bridge
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/14—Multichannel or multilink protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/18—Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/26—Special purpose or proprietary protocols or architectures
Definitions
- the invention relates to a method for transmitting information in a communication network. Furthermore, the invention relates to a communication network.
- a communication network is used in an application area with safety-related requirements, it is usually necessary for information or data to be reliably transmitted in the communication network. So it can be e.g. be required that information is transmitted as error-free or trouble-free from a signal generating unit to a signal processing unit, so that it can be ensured that the signal processing unit processes correct or unadulterated information.
- An example of an area of application in which there are safety requirements that may require secure information transmission is rail transport.
- An object of the invention is to provide a method with which information in a communication network can be reliably transmitted.
- a primary signal is received from the signal processing unit from the primary signal, a secondary signal is generated and the secondary signal is sent from the signal processing unit via two different protocol layers to a signal processing unit.
- the invention is based on the consideration that in the case of signal transmission via a first protocol layer and signal transmission via a second protocol layer, which differs from the first protocol layer, due to the different transmission modes, there is a different probability for unwanted signal influencing. Furthermore, the invention is based on the consideration that an undesired signal influencing of a signal which takes place within the framework of a transmission of the signal via a first protocol layer preferably does not influence the signal or other signal influencing of the signal in the context of a transmission of the signal over a second protocol layer.
- Unintentional signal influencing of the secondary signal generated by the signal processing unit can be detected by the signal processing unit if the secondary signal is transmitted to the signal processing unit via a further protocol layer.
- the signal processing unit can detect corrupted information in the secondary signal, for example by comparing information obtained via the first protocol layer the secondary signal with an information of the secondary signal obtained via the further protocol layer. In this way, processing of corrupted information by the signal processing unit can be avoided.
- the information transmission in the communication network can be realized more reliably.
- a signal generated and / or processed by the signal conditioning unit can be understood.
- a signal which is generated by a device other than the signal conditioning unit can be understood as the primary signal.
- the communication network is operated according to the rules of a protocol stack.
- the elements of the communication network preferably exchange information among themselves according to the rules of a protocol stack.
- the aforementioned protocol layers are expediently different layers (communication or network protocols) of the protocol stack.
- the protocol stack comprises seven protocol layers.
- these seven protocol layers may include the seven protocol layers - Physical Layer (Layer 1), Backing Layer (Layer 2), Network Layer (Layer 3), Transport Layer (Layer 4), Session Layer (Layer 5), Presentation Layer (Layer 6), and Application Layer (Layer 7) - the so-called OSI model (Open Systems Interconnection Model).
- the signal conditioning unit may in particular be a so-called repeater (also called a regenerator).
- the signal conditioning unit can therefore be set up in particular to amplify the primary signal.
- the signal processing unit is advantageously configured to evaluate or process the secondary signal, in particular a payload of the secondary signal. For example, to monitor and / or control a technical process.
- the signal processing unit advantageously has a programmable processor.
- the signal processing unit and the signal conditioning unit are elements of the communication network. Furthermore, it is expedient if the devices mentioned below are elements of the communication network.
- the communication network may be a combination of a wireless network and a wired or wired network.
- the communication network may, on the one hand, have components that transmit information wirelessly and, on the other hand, have components that transmit information of a wired or line-bound.
- the communication network is a self-configuring communication network. That is, the communication network advantageously performs automatic configuration of its elements.
- the communication network or at least one element thereof can be, for example, a component of a rail vehicle control system (a rail vehicle control technology). In such a case, a reliable information transmission can be realized by means of the communication network in a rail vehicle.
- the secondary signal is sent by the signal conditioning unit via one of the two protocol layers in the form of a first protocol data unit (English: Protocol Data Unit) to the signal processing unit. Furthermore, it is advantageous if the secondary signal from the signal conditioning unit via the other of the two protocol layers in the form of a second protocol data unit, the is different from the first protocol data unit, is sent to the signal processing unit.
- a first protocol data unit English: Protocol Data Unit
- At least one of the two protocol data units may have addressing information, such as e.g. a destination address and / or a source address.
- addressing information such as e.g. a destination address and / or a source address.
- a source address in particular a traceability of a signal path is made possible.
- Under a destination address may present an address or
- the source address can be an address or identifier of the device from which this signal is sent.
- the secondary signal is sent bit by bit to the signal processing unit via one of the two protocol layers.
- This protocol layer is expediently the so-called bit transmission layer (1st layer or physical layer) of the OSI model. Such signal transmission can be realized inexpensively.
- the secondary signal is sent packet by packet to the signal processing unit via the other of the two protocol layers.
- This protocol layer is expediently the so-called network layer (3rd layer or network layer) of the OSI model.
- the secondary signal can therefore be sent to the signal processing unit via one of the two protocol layers in the form of data packets and via the other of the two protocol layers in bit coding.
- a signal transmission in the form of data packets may be advantageous, inter alia, because in this type of signal transmission a lower probability of unwanted signal interference can be achieved (compared to a other type of signal transmission).
- the signal processing unit compares a payload of the secondary signal obtained via the first of the two protocol layers with a payload of the secondary signal obtained via the second of the two protocol layers. In this way, it can be determined whether the secondary signal was influenced or falsified during transmission via one of the two protocol layers.
- predetermined parts of the payload information are compared with one another by the signal processing unit or that the payload information in their entirety is compared with one another.
- one of the payloads of the signal processing unit is expediently processed. Otherwise, the payload is expediently discarded.
- “discarding” can mean that the payload (after the comparison) is no longer used or processed.Otherwise, in the case of a non-coincidence of the payload, it may be provided that the signal processing unit receive only the payload of the data received via the higher of the two protocol layers Secondary signal is processed while the other payload is discarded.
- the processing of a payload by the signal processing unit can, in particular, use of the payload. Formation for monitoring and / or to control a technical process.
- the respective payload may be information composed of a plurality of individual pieces of information.
- the respective payload may comprise, for example, a control command and / or a measured value.
- the respective payload information may include time information (a time stamp) and / or addressing information.
- the at least one transmission channel is a wireless transmission channel, in particular a radio transmission channel.
- the signal conditioning unit advantageously receives the primary signal over a wireless transmission channel.
- a wire or line connection between the latter units may be disadvantageous, for example, for reasons of weight, or because such a wired or wired connection can be realized only cost and / or laborious.
- the transmission channel is a standardized transmission channel, such as Bluetooth, WLAN, ZigBee or 866 MHz radio. This has the advantage that the correspondingly necessary hardware components for such a transmission channel are tried and tested many times and are available at low cost.
- the transmission channel may also be a non-standardized transmission channel.
- the secondary signal is sent by wire, in particular via a bus or a bus system, from the signal conditioning unit to the signal processing unit.
- the generation of the secondary signal from the primary signal comprises a signal amplification of the primary signal.
- a gain in particular an electronic see amplification of the primary signal. That is, it is expediently by the signal amplification from the primary signal, a processed signal - the secondary signal - generated. In this way it can be achieved that the secondary signal provided by the signal conditioning unit does not fall below a minimum signal strength required for the signal processing unit.
- the secondary signal may include additional information not contained in the primary signal generated by the signal conditioning unit.
- the secondary signal may include an address / identifier of the signal conditioning unit as the source address and / or an address / identifier of the signal processing unit as the destination address.
- the secondary signal can thus be understood as an amplified primary signal with optional additional information.
- the secondary signal comprises at least one time information (a time stamp) generated by the signal conditioning unit, in particular a reception time of the primary signal. This time information can be taken into account by the signal processing unit in the processing of the secondary signal.
- the secondary signal may include a transmission time at which the signal conditioning unit transmits the secondary signal.
- the signal processing unit is a train control unit.
- the signal processing unit is an actuator (also called actuator).
- the actuator may be understood to be a device which converts an electrical signal into a mechanical motion or into another physical quantity, such as a mechanical signal. Pressure or temperature, especially to actively intervene in a process.
- the primary signal is preferably generated by a control unit, in particular by a train control unit.
- the primary signal may comprise at least one control command for the actuator.
- the actuator can be arranged for example on a bogie of a rail vehicle.
- the secondary signal is generated using a sensor.
- the primary signal may include a measured value acquired by means of the sensor.
- the primary signal may include time information about a measurement time, i. a time at which the measured value was recorded include.
- the measured value and / or the time information can / can be a payload of the primary signal.
- the sensor can, for example, on a bogie of a
- the senor can be used in particular for monitoring a bogie parameter.
- the sensor may e.g. a temperature sensor, a speed sensor or another type of sensor.
- the sensor generates a sensor signal, which may in particular contain the measured value and / or said time information about the measuring time.
- the sensor signal is expediently - possibly after a signal processing, such as a digitization - passed to a transmitting unit.
- the primary signal is preferably based on the sensor signal or the primary signal corresponds to the sensor signal. It is also expedient if the transmitting unit transmits the primary signal.
- the transmitting unit may in particular be a transceiver (also called a transceiver), ie a combined transmitting and receiving unit.
- individual or all components of the communication network are supplied with electrical energy by means of a secure power supply, which in particular can have a plurality of current sources.
- the power supply comprises an uninterruptible power supply unit.
- the power supply may comprise one or more twisted pair lines. In this way, e.g. enables communication via a Profinet bus.
- the power supply can be used in case of failure or defect of the said transmission channel instead of the transmission channel for data / signal transmission.
- a primary signal is transmitted by a transmission module via a plurality of different transmission channels, in particular wireless transmission channels.
- the advantage of using a plurality of different transmission channels is that, in the event of a fault or a failure of one of these transmission channels, an information transmission between the transmitting module and a signal-receiving unit, such as e.g. the signal conditioning unit, over which other transmission channels can be realized.
- the primary signals transmitted via the different transmission channels can correspond in their payload information. vote. That is, each of these primary signals may have the same payload.
- the primary signals can each be identical in content.
- the different transmission channels can thus be used for a redundant transmission of the primary signal. In this way, in the case of a fault or a failure of one of these transmission channels, the same payload can be transmitted via one of the other transmission channels to a signal receiving unit.
- all of these primary signals may have been generated from the same sensor signal or from the same controller.
- the secondary signal is expediently generated by the signal conditioning unit from one of these primary signals.
- information about different frequencies is transmitted via the different transmission channels. Since signal-carrying waves which differ in their frequencies typically have a different reflection behavior, a higher probability can be achieved in this way-due to the exploitation of different reflection characteristics-that at least one of the primary signals is transmitted to a signal-receiving unit eg the signal conditioning unit is transmitted.
- the transmission module changes at predetermined time intervals a carrier frequency of its respective transmission channel.
- the transmission module can thus perform a so-called Frequency Hopping method. In this way, the information transmission can be made more robust against (narrowband) interference.
- the transmission module can have its own transmission unit, in particular a combined transmission and reception unit, for each of the transmission channels.
- the signal preparation unit can receive a plurality of primary signals from a transmission module, in particular from the aforementioned transmission module, preferably in each case via its own transmission channel, in particular in each case via its own wireless transmission channel.
- the use of a plurality of different transmission channels has the advantage that in the event of a fault or a failure of one of these transmission channels, an information transmission from the transmission module to the signal conditioning unit (further) can be realized via the other transmission channels.
- These primary signals may e.g. in their time information (timestamps) match.
- the primary signals may have the same signal generation time. That is, the primary signals may have been generated at the same time.
- the primary signals can completely match in their payload.
- the primary signals can each be identical in terms of their content.
- the secondary signal is generated from that of these primary signals, in which the signal conditioning unit determines the greatest signal strength.
- the secondary signal is generated from that of the primary signals, which has the highest signal-to-noise ratio.
- an amplitude of the respective primary signal or a field strength of the respective primary signal can be understood as signal strength, in particular at the location of the signal conditioning unit.
- the secondary signal is generated from that of these primary signals, which receives the signal conditioning unit first. If one of the primary signals or an information contained therein exceeds a predetermined age, this primary signal is preferably discarded and thus not used to generate the secondary signal.
- the same primary signal is received by a plurality of signal processing units via at least one transmission channel, in particular via at least one radio transmission channel, and a secondary signal is generated from the received primary signal.
- a redundancy of the communication network can be achieved. In the event of a fault or a failure of one of the signal processing units, a signal contained in the primary signal
- Payload information about one of the other signal processing units are transmitted to the signal processing unit.
- the secondary signal generated by the respective signal conditioning unit can also be sent from the corresponding signal conditioning unit via two different protocol layers to the signal processing unit.
- the signal processing unit preferably processes the one of these secondary signals which the signal processing unit first receives. Furthermore, it can be provided that the signal processing unit compares the payload of these secondary signals with each other. It is advantageous if the signal processing unit (only then) processes the payload of one of these, if the payload of at least two secondary signals match. By means of this additional comparison, unwanted signal interference between one of the signal conditioning units and the signal processing unit can be detected.
- the communication network comprises a signal conditioning unit and a signal processing unit.
- the signal conditioning unit is configured to receive a primary signal via at least one transmission channel, to generate a secondary signal from the primary signal and to transmit the secondary signal to the signal processing unit via two different protocol layers.
- the advantageous features mentioned above in connection with the method can also relate to advantageous developments of the communication network according to the invention.
- the advantageous features mentioned below in connection with the communication network can also relate to advantageous developments of the method according to the invention.
- the communication network for implementing the method according to the invention, in particular for carrying out at least one of the above-described advantageous developments of the method according to the invention, set up.
- the communication network may be a component of a vehicle, such as a vehicle. a rail vehicle.
- the communication network may be part of a control system or a control technology of a rail vehicle.
- the signal conditioning unit is adapted to receive said primary signal via a wireless transmission channel, in particular via a radio transmission channel.
- the signal processing unit is set up to receive in each case a primary signal via a plurality of different wireless transmission channels, in particular radio transmission channels.
- the signal processing unit can have a plurality of different receiving units, in particular radio receiving units. These receiving units can be used, for example, as transceivers. ver, ie as a combined transmitting and receiving unit, be formed.
- the signal conditioning unit is set up to determine a signal strength of the respective primary signal and / or a reception time of the respective primary signal.
- the signal conditioning unit is operable as a switch and / or as a router.
- the signal conditioning unit expediently has a switch and / or router function.
- the communication network has at least one transmission module.
- the transmission module is preferably configured to emit a respective primary signal via a plurality of different wireless transmission channels, in particular radio transmission channels.
- the transmission module can have a separate transmission unit for each of the transmission channels.
- These transmitting units can each be designed, for example, as a transceiver, ie as a combined transmitting and receiving unit.
- FIG. 1 shows a communication network, which u.a. a plurality of signal processing units, a plurality of sensors and a signal processing unit designed as a train control unit;
- FIG. 2 shows another communication network, which u.a. a
- Signal processing unit and a plurality of trained as actuators signal processing units comprises.
- the illustrated communication network 2 is a communication network of a rail vehicle.
- the communication network 2 comprises a plurality of signal processing units 4, wherein in FIG. 1, for better clarity, only two of the signal processing units 4 are shown.
- the communication network 2 comprises a signal processing unit 6, which in the present exemplary embodiment is a train control unit 8.
- the signal processing unit 6 is connected to the signal conditioning units 4 via a train bus 10.
- Each of the signal conditioning units 4 is configured to receive radio signals via four different radio transmission channels.
- each of the signal processing units 4 has four radio receiving units 12, each equipped with an antenna 14.
- the signal conditioning units 4 it would be possible for the signal conditioning units 4 (unlike in the present exemplary embodiment) to each use a larger or smaller number of radio transmission channels and accordingly have a larger or smaller number of radio reception units 12.
- the radio receiving units 12 are combined transmitting and receiving units (transceivers). They are thus set up both for receiving and for transmitting radio signals.
- Each of the radio receiving units 12 is provided with a signal amplifier 16 for electronically amplifying a received radio signal and / or a signal to be transmitted.
- each of the signal conditioning units 4 uses a first of its four radio receiving units 12 Bluetooth, a second of its four radio receiving units 12 WLAN and a third of their radio receiving units 12 ZigBee as a transmission channel, whereas the fourth of their radio receiving units 12 as a transmission channel 866 MHz radio uses.
- the communication network 2 has a communication tion unit 18 for a radio communication between the rail vehicle and a control center.
- the communication unit 18 has a radio receiving unit 20, which is equipped with an antenna 14 and designed as a combined transmitting and receiving unit (transceiver).
- the communication unit 18 is equipped with a signal amplifier 16 for electronically amplifying a received radio signal and / or a signal to be transmitted.
- the communication unit 18 is also connected to the train control unit 8 via the train bus 10.
- the communication network 2 has a plurality of components which are arranged on bogies, not shown figuratively, of the rail vehicle.
- components of the communication network 2 are shown by way of example, which are arranged on one of the bogies of the rail vehicle. These components are enclosed in FIG. 1 by a dot-dashed rectangle.
- the rail vehicle has the same components.
- the communication network 2 has an arrangement 22 of a plurality of sensors 24 (of which three sensors 24 are shown by way of example in FIG. 1), a signal amplifier 26 with which the sensors 24 are communicatively connected, for the electronic signal amplification of FIG Sensor signals and a digitizer 28, which is communicatively connected to the latter signal amplifier 26, for digitizing the (amplified) senors sorsignale.
- a signal amplifier 26 with which the sensors 24 are communicatively connected, for the electronic signal amplification of FIG Sensor signals
- a digitizer 28 which is communicatively connected to the latter signal amplifier 26, for digitizing the (amplified) senors sorsignale.
- the sensors 24 are configured to measure bogie parameters such as a wheel temperature, a wheel speed, or the like.
- the sensors 24 arranged on the respective wheel can each be set up to measure different physical quantities. But it is also possible that several of the sensors 24 arranged on the respective wheel are set up to measure the same physical variable, in particular for reasons of redundancy.
- the communication network 2 comprises at each bogie a multiplexer 30, the input side with the arrangements 22 of sensors 24, signal amplifier 26 and
- the communication network 2 on each bogie comprises a transmission module 32 to which the multiplexer 30 is communicatively connected on the output side and which is configured to transmit radio signals via four different radio transmission channels.
- the transmission module 32 has four radio transmission units 34, each with an antenna 14, wherein the radio transmission units 34 are formed as a combined transmitting and receiving units (transceivers).
- a first of these four radio transmission units 34 uses Bluetooth, a second of these four radio transmission units 34 uses WLAN, a third of these four radio transmission units 34 uses ZigBee and the fourth of the four radio transmission unit 34 uses 866 MHz radio as a transmission channel.
- the communication network 2 comprises a secure power supply 36, via which the transmitter module 32 and the
- Signal amplifier 26 of the respective bogie be supplied with electrical energy.
- Each of the sensors 24 generates a sensor signal at predetermined time intervals.
- the sensor signal of the respective sensor 24 contains a measured value detected by the sensor 24, time information about a measuring time of the measured value and the identifier of the sensor 24.
- the identifier makes it possible for the sensor Measured value of the signal processing unit 6 the associated sensor 24 can be assigned.
- the individual sensor signals are electronically amplified by the signal amplifier 26 connected to the sensors 24 and digitized by the digitizer 28.
- the multiplexer 30 successively connects a different one of its inputs to its output, thereby sequentially forwarding the (amplified and digitized) sensor signals received at the respective input to the transmitter module 32.
- the transmitter module 32 generates from each sensor signal received four primary signals in the form of radio signals, each having the same payload consisting of the measured value, the time information on the measurement time and the sensor identifier. Furthermore, the transmission module 32 transmits the primary signals by means of its four radio transmission units 34 each via its own one of said four different radio transmission channels (WLAN, Bluetooth, ZigBee, 866 MHz radio).
- At least one of the aforementioned signal conditioning units 4 receives in each case at least one radio transmission channel of one of these four primary signals. If this one signal conditioning unit 4 receives one of the primary signals via a plurality of radio transmission channels, this signal conditioning unit 4 determines the signal strengths of the primary signals and uses only that of the primary signals in which the signal conditioning unit 4 determines the greatest signal strength.
- Said signal conditioning unit 4 generates a secondary signal from the primary signal.
- the primary signal is amplified electronically by the signal conditioning unit 4.
- the secondary signal contains the payload of the primary signal, ie a measured value, a time information about a measurement time of the measured value and a sensor identifier.
- the secondary signal contains one of the signal conditioning unit 4 generated time information, namely the reception time of the primary signal (ie the time at which the Signal Milton preparation unit 4 receives the primary signal), and the identifier of the signal conditioning unit 4 as a source address.
- the signal conditioning unit 4 transmits the secondary signal via two different protocol layers of a protocol stack, namely via the so-called bit transmission layer and via the so-called network layer to the
- Signal processing unit 6 For transmission of the train bus 10 is used.
- the signal conditioning unit 4 transmits the secondary signal to the signal processing unit 6 via the physical layer and via the network layer in the form of different protocol data units assigned to the respective protocol layers.
- the secondary signal is transmitted bit by bit (ie in bit coding) via the physical layer and packet by packet (via the network layer). ie transmitted as data packets) to the signal processing unit 6.
- the signal processing unit 6 compares the payload information of the secondary signal obtained via the physical layer with the payload of the secondary signal obtained via the network layer. If the payload matches, the signal processing unit 6 uses one of the (in this case identical) payload information for monitoring the bogie parameter associated with the sensor signal. The signal processing unit 6 processes this payload so. In case of mismatch of the payload, e.g. because at least one of the payload has been corrupted by way of transmission over one of the two protocol layers, the payload is discarded.
- the signal processing unit 6 processes a payload of that secondary signal which the signal processing unit 6 first receives from one of these multiple signal conditioning units 4.
- FIG. 2 shows a schematic representation of a further communication network 38. Also in this communication network 38 is a communication network of a rail vehicle.
- This communication network 38 comprises a train control unit 8. Furthermore, the communication network 38 comprises a communication unit 18 for radio communication between the rail vehicle and a control center. The communication unit 18 is connected to the train control unit 8 via a train bus 10.
- the communication network 38 has a transmission module 32, which is connected via the train bus 10 with the train control unit 8.
- the transmission module 32 is configured to have four different radio transmission channels to send radio signals.
- the transmission module 32 has four radio transmission units 34. A first of these four radio transmission units 34 uses Bluetooth, a second of these four radio transmission units 34 uses WLAN, a third of these four radio transmission units 34 uses ZigBee and the fourth of the four radio transmission unit 34 uses 866 MHz radio as a transmission channel.
- the communication network 38 has a plurality of components which are arranged on bogies of the rail vehicle, not shown in the figures.
- components of the communication network are shown as an example, which are arranged on one of the bogies of the rail vehicle. These components are enclosed in FIG 2 by a dash-dotted rectangle.
- the rail vehicle has the same components.
- the communication network 38 has an array 40 of several
- Actuators 42 each of which can implement an electrical signal in a mechanical movement or in another physical size, in FIG 2 a better clarity of each actuator assembly 40 each only three actuators 42 are shown.
- the actuators 42 of the communication network 38 each represent a signal processing unit 6.
- the communication network 38 has on each bogie a signal conditioning unit 4, with which the
- Actuators 42 are communicatively connected and which is adapted to receive four different radio transmission channels radio signals.
- the respective signal processing unit 4 has four radio receiving units 12, each equipped with an antenna 14.
- the radio receiving units 12 are combined transmitting and receiving units (transceivers). Each of the Radio receiving units 12 is equipped with a signal amplifier 16 for electronically amplifying a received radio signal and / or a signal to be transmitted. A first of these four radio reception units 12 uses Bluetooth, a second of these four radio reception units 12 uses WLAN, a third of these four radio reception units 12 uses ZigBee and the fourth of the four radio reception units 12 uses 866 MHz radio as a transmission channel.
- the communication network 38 has a secure power supply 36 via which the signal conditioning unit 4 of the respective bogie is supplied with electrical energy.
- the train control unit 8 generates a control signal which contains a control command for one of the actuators 42.
- the control signal contains the identifier of that actuator 42, for which the control command is determined, and the identifier of that signal conditioning unit 4, with which this actuator 42 is connected.
- the train control unit 8 transmits the control signal to the transmission module 32 via the train bus 10. Furthermore, the transmission module 32 generates four primary signals from the received control signal in the form of radio signals, each having the same payload consisting of the control command and the two said identifiers. The transmission module 32 transmits the primary signals by means of its four radio transmission units 34 in each case via its own one of said four different radio transmission channels (WLAN, Bluetooth, ZigBee, 866 MHz radio).
- the respective signal conditioning unit 4 receives at least one radio transmission tion channel one of these primary signals. If the signal conditioning unit 4 receives one of the primary signals via a plurality of radio transmission channels, the signal conditioning unit 4 determines the signal strengths of the primary signals and uses only that of the primary signals in which the signal conditioning unit 4 detects the greatest signal strength.
- the signal conditioning unit 4 amplifies the primary signal electronically. Furthermore, the signal conditioning unit 4 checks whether its identifier is equal to the signal conditioning unit identifier contained in the primary signal. If these two identifiers do not match, the signal conditioning unit 4 discards the primary signal. Otherwise, the signal conditioning unit 4 generates from the amplified primary signal a secondary signal which contains the same payload as the primary signal.
- the signal conditioning unit 4 transmits the secondary signal via two different protocol layers of a protocol stack, namely via the so-called physical layer and via the so-called network layer to the intended actuator 42.
- the signal conditioning unit 4 transmits the secondary signal via the physical layer and via the network layer in the form of different (
- the secondary signal is transmitted bit by bit (ie in bit coding) and via the network layer packet by packet (ie as a data packets) to said actuator via the physical layer.
- the actuator 42 compares the payload information of the secondary signal obtained via the bit transmission layer with the payload information of the secondary signal obtained via the network layer. In the case of a match of the payload, the actor 42 processes one of the (in this In the case of identical) NutzInformationen by the actuator 42 converts the secondary signal into a mechanical movement or another physical quantity. In the case of a mismatch of the payload, however, the payload is discarded.
- control signals generated for other actuators 42 are transmitted in an analogous manner to the respectively provided actuator 42.
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102016200964.8A DE102016200964A1 (de) | 2016-01-25 | 2016-01-25 | Verfahren zur Informationsübertragung in einem Kommunikationsnetz |
PCT/EP2016/080741 WO2017129304A1 (de) | 2016-01-25 | 2016-12-13 | Verfahren zur informationsübertragung in einem kommunikationsnetz |
Publications (1)
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EP3381167A1 true EP3381167A1 (de) | 2018-10-03 |
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EP16815787.3A Withdrawn EP3381167A1 (de) | 2016-01-25 | 2016-12-13 | Verfahren zur informationsübertragung in einem kommunikationsnetz |
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US (1) | US10790950B2 (de) |
EP (1) | EP3381167A1 (de) |
CN (1) | CN108496331B (de) |
DE (1) | DE102016200964A1 (de) |
RU (1) | RU2704860C1 (de) |
WO (1) | WO2017129304A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018209875A1 (de) * | 2018-06-19 | 2019-12-19 | Siemens Mobility GmbH | Verfahren zur Datenübertragung innerhalb eines Schienenfahrzeugs und/oder zwischen dem Schienenfahrzeug und zumindest einer externen Einheit, Kommunikationssystem, Schienenfahrzeug und Verband |
DE102018212768A1 (de) * | 2018-07-31 | 2020-02-06 | Siemens Aktiengesellschaft | Verfahren zum Erzeugen einer Bewegungsinformation |
DE102019202527A1 (de) * | 2019-02-25 | 2020-08-27 | Robert Bosch Gmbh | Sicherheitssystem und Verfahren zum Betreiben eines Sicherheitssystems |
DE102021122530A1 (de) | 2021-08-31 | 2023-03-02 | STACKFORCE GmbH | Kommunikationseinheit zum Austausch von Daten mit anderen Kommunikationsteilnehmern |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5894478A (en) * | 1996-07-24 | 1999-04-13 | Lucent Technologies Inc. | Protocol converter and router for multi-mode wireless data communications |
US6477648B1 (en) * | 1997-03-23 | 2002-11-05 | Novell, Inc. | Trusted workstation in a networked client/server computing system |
US6278710B1 (en) * | 1998-09-10 | 2001-08-21 | Agilent Technologies, Inc. | Enhancements to time synchronization in distributed systems |
US6421735B1 (en) * | 1998-10-30 | 2002-07-16 | Advanced Micro Devices, Inc. | Apparatus and method for automatically selecting a network port for a home network station |
DE10142408A1 (de) | 2001-08-31 | 2003-04-03 | Bosch Gmbh Robert | Verfahren und Versorgungsleitungstruktur zur Übertragung von Informationen zwischen elektrischen Kraftfahrzeugkomponenten |
US20120317282A1 (en) * | 2011-06-10 | 2012-12-13 | General Electric Company | System and method for communications in a vehicle consist |
DE102004008910A1 (de) * | 2004-02-24 | 2005-09-08 | Robert Bosch Gmbh | Verfahren und Kommunikationssystem zur Übertragung von Informationen in einem Kraftfahrzeug |
US7743151B2 (en) * | 2004-08-05 | 2010-06-22 | Cardiac Pacemakers, Inc. | System and method for providing digital data communications over a wireless intra-body network |
US7894806B2 (en) * | 2005-11-14 | 2011-02-22 | American Teleconferencing Services, Ltd. | Systems and methods to direct a mobile communications device to a preferred teleconference bridge |
CA2634770C (en) * | 2005-12-23 | 2017-06-20 | Asf-Keystone, Inc. | Railroad train monitoring system |
US8935022B2 (en) * | 2009-03-17 | 2015-01-13 | General Electric Company | Data communication system and method |
US7894934B2 (en) * | 2006-12-05 | 2011-02-22 | Veyance Technologies, Inc. | Remote conveyor belt monitoring system and method |
JP2008294503A (ja) | 2007-05-22 | 2008-12-04 | Fujikura Ltd | 車載機器制御システム |
US7890821B2 (en) * | 2007-10-04 | 2011-02-15 | Veriwave, Inc. | Channel impairment emulator systems and methods |
US8725156B2 (en) * | 2009-04-02 | 2014-05-13 | Honeywell International Inc. | Methods for supporting mobile nodes in industrial control and automation systems and other systems and related apparatus |
US8456278B1 (en) * | 2010-03-24 | 2013-06-04 | Resolution Products, Inc. | Communicating within a wireless security system |
US9365223B2 (en) | 2010-08-23 | 2016-06-14 | Amsted Rail Company, Inc. | System and method for monitoring railcar performance |
US8751069B2 (en) * | 2011-06-16 | 2014-06-10 | The Boeing Company | Dynamically reconfigurable electrical interface |
DE102011118077B4 (de) * | 2011-11-04 | 2019-08-01 | Airbus Operations Gmbh | Überwachung der Hochfrequenzumgebungsparameter mittels drahtlosen Netzwerks in einem Flugzeug |
US9243489B2 (en) * | 2011-11-11 | 2016-01-26 | Intelliserv, Llc | System and method for steering a relief well |
IN2014MN02332A (de) * | 2012-04-18 | 2015-08-14 | Zomojo Pty Ltd | |
JP2014110671A (ja) * | 2012-11-30 | 2014-06-12 | Toshiba Corp | 鉄道用車両制御装置及び鉄道用車両制御システム |
EP2926604B1 (de) * | 2012-11-30 | 2019-08-07 | Valmet Automation Oy | Mehrkanaliges sensormessverfahren und system |
US9722703B2 (en) * | 2014-03-21 | 2017-08-01 | Commscope Technologies Llc | Digital distributed antenna systems and methods for advanced cellular communication protocols |
US9928199B2 (en) * | 2014-04-01 | 2018-03-27 | Texas Instruments Incorporated | Low power software defined radio (SDR) |
US9306622B2 (en) * | 2014-09-10 | 2016-04-05 | Honeywell International Inc. | Non-contact sensing and reading of signals transmitted by a cable |
-
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- 2016-01-25 DE DE102016200964.8A patent/DE102016200964A1/de not_active Ceased
- 2016-12-13 WO PCT/EP2016/080741 patent/WO2017129304A1/de active Application Filing
- 2016-12-13 EP EP16815787.3A patent/EP3381167A1/de not_active Withdrawn
- 2016-12-13 CN CN201680080021.6A patent/CN108496331B/zh active Active
- 2016-12-13 RU RU2018128962A patent/RU2704860C1/ru active
- 2016-12-13 US US16/072,595 patent/US10790950B2/en active Active
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DE102016200964A1 (de) | 2017-07-27 |
RU2704860C1 (ru) | 2019-10-31 |
CN108496331B (zh) | 2021-06-25 |
WO2017129304A1 (de) | 2017-08-03 |
US20190068340A1 (en) | 2019-02-28 |
CN108496331A (zh) | 2018-09-04 |
US10790950B2 (en) | 2020-09-29 |
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