DE102016218429A1 - A method of operating multiple devices of different types on a network of a rail vehicle - Google Patents

A method of operating multiple devices of different types on a network of a rail vehicle

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Publication number
DE102016218429A1
DE102016218429A1 DE102016218429.6A DE102016218429A DE102016218429A1 DE 102016218429 A1 DE102016218429 A1 DE 102016218429A1 DE 102016218429 A DE102016218429 A DE 102016218429A DE 102016218429 A1 DE102016218429 A1 DE 102016218429A1
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DE
Germany
Prior art keywords
devices
network
device
characterized
software
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.)
Pending
Application number
DE102016218429.6A
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German (de)
Inventor
Roland Porsch
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 Mobility GmbH
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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
Application filed by Siemens AG filed Critical Siemens AG
Priority to DE102016218429.6A priority Critical patent/DE102016218429A1/en
Publication of DE102016218429A1 publication Critical patent/DE102016218429A1/en
Application status is Pending legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L15/00Indicators provided on the vehicle or vehicle train for signalling purposes ; On-board control or communication systems
    • B61L15/0081On-board diagnosis or maintenance
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L15/00Indicators provided on the vehicle or vehicle train for signalling purposes ; On-board control or communication systems
    • B61L15/0018Communication with or on the vehicle or vehicle train
    • B61L15/0036Conductor-based, e.g. using CAN-Bus, train-line or optical fibres
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. local area networks [LAN], wide area networks [WAN]
    • H04L12/40Bus networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance or administration or management of packet switching networks
    • H04L41/02Arrangements for maintenance or administration or management of packet switching networks involving integration or standardization
    • H04L41/022Multivendor or multistandard integration
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance or administration or management of packet switching networks
    • H04L41/08Configuration management of network or network elements
    • H04L41/0803Configuration setting of network or network elements
    • H04L41/0813Changing of configuration
    • H04L41/082Changing of configuration due to updating or upgrading of network functionality, e.g. firmware
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network-specific arrangements or communication protocols supporting networked applications
    • H04L67/34Network-specific arrangements or communication protocols supporting networked applications involving the movement of software or configuration parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. local area networks [LAN], wide area networks [WAN]
    • H04L12/40Bus networks
    • H04L2012/40267Bus for use in transportation systems
    • H04L2012/40293Bus for use in transportation systems the transportation system being a train

Abstract

The invention relates to a method for operating a plurality of devices (10) of different types on a network (12) of a rail vehicle (2), in which software is transmitted from a server (34) to the devices (10) via the network (12). To save hardware in the vehicle (2) used for service purposes only, it is proposed that a virtualization platform (42) be connected to the network (12) with multiple virtual environments (44) each having a device type specific converter (46 ), and a software transfer from a download service of the server (34) to the devices (10) via the respective device (10) associated converter (46) takes place, which takes over the implementation of the transmission from the download service to a device-specific download service.

Description

  • The invention relates to a method for operating a plurality of devices of different types on a network of a rail vehicle, in which software is transmitted from a server to the devices via the network.
  • Modern rail vehicles for passenger transport have a variety of devices that are controlled from the outside or outside data, such as measured data, leave. The devices are connected to a network, with which also corresponding control and evaluation devices are connected for controlling or evaluating the devices.
  • To adjust device properties or software updates, it may happen that the devices need to be updated with new software. The software is made available via a server with a download service on the network and fed via the network to the devices. Such devices usually have an Ethernet interface, for example a diagnostic interface via which an internal download service is made available. This is tailored to the subsystem and able to download incoming software and make it available to the subsystem.
  • It is an object of the present invention to provide a method of operating multiple devices of different types on a network of a rail vehicle, with which software can be easily transferred from a server to the devices via the network.
  • This object is achieved by a method of the aforementioned type, in which according to the invention a virtualization platform with several virtual environments is connected to the network, each of which contains a device-type-specific converter. A software transfer can be made in this way by a download service of the server to the devices in each case via the converter associated with the respective device. This can then take over the implementation of the transfer from the download service to a device-specific download service.
  • The invention is based on the consideration that software to be transmitted to devices of a rail vehicle for passenger transport is often software that is adapted to the rail vehicle per se or properties of the network and other devices of the rail vehicle. To coordinate such downloads, for example, a Profibus is suitable, which has a corresponding download service on a server of the rail vehicle. To successfully download software to a rail vehicle device, the in-server download service must be supported by the device's subsystem-proprietary download service.
  • For this purpose, it is possible to adapt the device download service by appropriate programming of the manufacturer to the in-vehicle download service, which is associated with effort and costs. A slightly simpler possibility is to install a computer for each device or device type in the vehicle, which is used only for download tasks and, where appropriate, for the provision of a web interface. This computer then maps the server's download to the proprietary download of the device and provides, for example, a web server. This, however, results in the need to install a variety of computers in the vehicle, which are used only in the service, for example, for the download, but in a moving train have no tasks and consume only space and energy.
  • The solution according to the invention of the virtualization platform makes it possible to set up a plurality of virtual environments on a computer, each containing a device-type-specific converter. Each device or device type has associated with it a virtual environment with a device type specific converter that performs the translation from the in-server download service to the device or device type proprietary download service. The transducer can be provided by the equipment supplier. As a result, it is possible to dispense with equipping all devices with the corresponding download service as well as with connected and additional computers in the rail vehicle.
  • The device-specific download service can be located locally in the device and connected to the converter. The different devices can each contain a device-specific download service, the download services of the different device types are different. The adaptation of the download service of the server to the device-specific download services is made by the converter in the virtual environment.
  • It is also possible that the device-specific download service is also located in the virtual environment. The different virtual environments then contain the appropriate device-specific download service for each device type, so that the devices can each be executed without a device-specific download service.
  • Conveniently, each device type has its own virtual environment with its own device-specific download service. Each converter can each have a device-side connection for the network download service.
  • In an advantageous embodiment of the invention, the virtual environments are each Linux container, wherein expediently each container contains one of the device-specific converter. The Linux container can be in LXC format and thus a virtualization solution that is implemented directly in the Linux kernel. Also possible are environments in Docker format or LXD format, ie containers that in turn use LXC containers.
  • Furthermore, it is advantageous if the virtual environments each have their own IP address, which can then each be recorded in a hardware connection of a host of the server.
  • In a passenger rail vehicle, a multitude of data must be sent in real time. For example, control signals for decelerating the vehicle must be transmitted from a control station of the rail vehicle to brake control devices of the rail vehicle. Since it can lead to time delays in an Ethernet, the devices are connected in an advantageous embodiment of the invention via a fieldbus with a runtime system of the vehicle. Control data, but also measurement signals, can be transmitted in real time to the corresponding control devices or diagnostic devices via the fieldbus. The runtime system may be a system in which at least substantially all data is transmitted in real time.
  • In this respect, the devices are expediently controlled in general via a field bus of the network, wherein the software can be transmitted from the server via an Ethernet connection of the network to the devices. For this purpose, the devices can have two interfaces, for example a control interface and a diagnostic interface.
  • Generally speaking, it is advantageous if the network has a real-time protocol and an Ethernet protocol on a common line. The communication over the common line thus runs in both protocols, expediently sequentially. Thus, a device can be controlled in real time via the real-time protocol, and software can be uploaded to the device via the Ethernet protocol. The application of the software is expediently done in a time window in which the real-time protocol is silent.
  • In a further advantageous embodiment of the invention, it is proposed that the virtual environments each contain instructions for a transmission protocol according to which the software is transmitted to the respectively assigned device. Depending on the device or converter, it may be useful to make the transfer of software rather quickly and easily or rather secured. If, for example, software for a display for passengers is transmitted, for example an update for an infotainment device, then this can be done quickly and without a security check, since an error in the transmission is not safety concern. On the other hand, when software is transmitted to a device of a vehicle door, e.g. a closing control for a car door, so the transmission should be done without errors. An even more critical example is an update on a device of a vehicle brake system. Depending on the requirement, the instructions for the transmission can be executed in such a way that, for example, the transmission is sufficiently secured.
  • For this purpose, it is advantageous if the transmission protocol contains instructions for a security level, after which the software is transmitted to the respectively assigned device. Examples of such security levels include a simple file transfer, a checksum-protected transfer, or a certificate-protected transfer.
  • The invention is also directed to a rail vehicle having a network to which a plurality of devices and a server are connected with a network download service containing software for the devices.
  • To be able to transfer software from the server via the network in a simple manner to the devices, it is proposed that the network according to the invention comprises a virtualization platform with multiple virtual environments. Each of these virtual environments may include a device type specific converter. The converters may in turn each have a device-side connection to the download service to their associated device. It can run in this way, a plurality of device-specific converter on a computer, so that the rail vehicle in this respect requires a small amount of hardware.
  • The virtualization platform can run on a server that is connected to the network and receives the software to be played by the network server with the network download service. However, it is particularly advantageous if the server with the network download service also has the virtualization platform. Two computers can be merged, and hardware can be saved.
  • In rail vehicles for passenger transport, a large number of devices, such as measuring modules and / or control devices, are arranged on the bogie. The invention is particularly advantageous applicable to a rail vehicle, in which the devices are arranged on a bogie of the rail vehicle. A variety of devices on the bogie can be supplied in this way with a small amount of hardware software.
  • The description of advantageous embodiments of the invention given so far contains numerous features that are summarized in several dependent claims in several groups. However, these features may conveniently be considered individually and summarized into meaningful further combinations, particularly when reclaiming claims so that a single feature of a dependent claim may be combined with a single, several or all features of another dependent claim.
  • In addition, these features can be combined individually and in any suitable combination both with the method according to the invention and with the device according to the invention according to the independent claims. Thus, process features are also objectively formulated as a property of the corresponding device unit and functional device features also as corresponding process features.
  • The above-described characteristics, features and advantages of this invention, as well as the manner in which they are achieved, will become clearer and more clearly understood in connection with the following description of embodiments, which will be described in connection with the drawings. The embodiments serve to illustrate the invention and do not limit the invention to the combination of features specified therein, not even with respect to functional features. In addition, suitable features of each embodiment may also be explicitly considered isolated, removed from one embodiment, incorporated into another embodiment to complement it, and / or combined with any of the claims.
  • Show it:
  • 1 a rail vehicle with passenger cars and bogies containing a large number of devices connected by a network,
  • 2 a protocol breakdown of the network in several levels and a server connected to the network,
  • 3 a virtualization platform on the server with multiple virtual environments and
  • 4 a schematic representation of the arrangement of server, virtual environment and devices to each other.
  • 1 shows a rail vehicle 2 for passenger transport with several cars 4 for the transport of persons, for the sake of clarity, in 1 only two cars 4 are shown. Every car 4 is with two bogies 6 equipped, each of two wheelsets 8th be worn. At each of the bogies 6 are a variety of devices 10 For example, temperature sensors, acceleration sensors, one or more speed sensors and other measuring devices as well as control units, actuators and other devices 10 ,
  • The devices 10 are all with a network 12 connected by several cars 4 of the rail vehicle 2 extends, as in 1 is indicated. The network 12 includes a central line 14 with which the devices 10 physically connected via connection lines. The rail vehicle 2 is in addition with other devices 10 equipped, for example, measuring and control devices on each door, devices 10 for climate control, engine control, power supply, infotainment and much more. Also with the network 12 connected is an input and output system 16 in the control station of the rail vehicle 2 , about which a train driver essential driving functions of the rail vehicle 2 controls and monitors.
  • 2 shows a protocol structure of the network 12 in a schematic representation. A Profinet 18 and a fieldbus 20 , for example a CAN fieldbus, are part of a runtime system, via which, for example, control devices 22 in real time with control data, for example from the input and output system 16 be supplied in the control room. The controllers 22 For example, brake control devices, which in turn are brake actuators or motors on one or more of the bogies 6 over the fieldbus 20 in real time. Further sensor systems 24 can be on a sensor bus 26 of the network 12 also part of the rail vehicle's runtime system 2 is. The sensor systems 24 can also be used as devices 10 corresponding 1 be understood.
  • On the devices 10 software is to be installed, in particular executable software, such as a modified measuring program. The devices 10 For example, each comprise a head module 30 to the fieldbus 20 is connected, and one or more measurement modules 32 , in turn, on the head module 30 are connected. Two such devices are in 2 by way of example with head module 30 and measuring module 32 shown.
  • To transfer the software from the server 34 on the devices 10 contains the network 12 an ethernet 28 with a fast protocol for transferring large amounts of data, such as TCP / IP or other non-real-time protocol. The Ethernet 28 is over other interfaces of the devices 10 connected to these, as the fieldbus 20 , For example, the devices point 10 Diagnostic interfaces that interface to the Ethernet 28 form. The same applies to the sensor systems 24 ,
  • Next are with the network 12 one or more servers 34 connected. In 1 are two servers 34 one of which contains software for the devices 10 and the other is a virtualization platform with multiple virtual environments. It is also possible to use both servers 34 to a server 34 to summarize, as in 2 is indicated. This server 34 contains both for devices 10 certain update software, as well as a virtualization platform with multiple virtual environments. The server 34 and the devices 10 communicate via the Ethernet 28 to transfer the software from the server 34 on one or more of the devices 10 ,
  • 3 shows the server 34 with a virtualization structure formed in it in a schematic representation. The server 34 contains hardware 36 on which a LINUX kernel 38 is attached. On a higher level there is a host operating system 40 and a virtualization platform 42 that the data space for multiple virtual environments 44 , each one a converter 46 included, provides. The virtual environments 44 are LXC Linux containers, which in addition to directories and libraries also have their own IP address, each in a hardware connection of the host of the server 34 are recorded.
  • In the individual containers or virtual environments 44 run converter 46 in the form of applications by suppliers of the devices 10 were provided. The transducers 46 include, for example, device-side connections for a download service of the software server 34 , a web server and, if applicable, the implementation for the download service in hardware modules.
  • The transducers 46 are device-specific converters 46 , where for several types of devices more than one converter 46 are present in such a way that for each device type a device type specific converter 46 is available. Every converter 46 has its own device-specific download service, which handles the implementation of the transfer from the server download service to the device-specific download service. For this each converter has 46 a device-side connection for the server download service or network download service, so that a software download from the software server 34 on the appropriate device 10 over the converter 46 can run with his device-specific download service.
  • 4 shows a schematic representation of an arrangement with server 34 , virtual environments 44 with converter 46 and device 10 , The server 34 contains a download service 48 that comes with a variety of virtual environments 44 connected is. These connections 50 are in 4 symbolically represented as many lines, the connections 50 usually via a physical line 14 be made and produced by different addressing. The virtual environments 44 each contain their transducer 46 and instructions 52 to a transmission protocol, after which the software on the respectively assigned device 10 is to be transferred. The instructions 52 include a security level, for example, whether a simple file transfer, a checksum-protected transfer or a certificate-protected transfer takes place. In addition to the device 10 is a device-specific download service 54 present, the part of the device 10 can be or in the virtual environment 44 is included as shown by the dashed lines of the device 10 or the virtual environment 44 is indicated, so either the dashed line of the device 10 or the virtual environment 44 shows the current configuration.

Claims (13)

  1. Method for operating multiple devices ( 10 ) of different types on a network ( 12 ) of a rail vehicle ( 2 ), in which software from a server ( 34 ) over the network ( 12 ) on the devices ( 10 ), characterized in that with the network ( 12 ) a virtualization platform ( 42 ) with multiple virtual environments ( 44 ), each of which is a device-type converter ( 46 ) and a software transfer from a download service of the server ( 34 ) on the devices ( 10 ) each over the respective device ( 10 ) associated transducers ( 46 ), which takes over the implementation of the transmission from the download service to a device-specific download service.
  2. Method according to Claim 1, characterized in that the virtual environments ( 44 ) are each Linux containers and each container one of the device-specific converter ( 46 ) contains.
  3. Method according to claim 1 or 2, characterized in that the virtual environments ( 44 ) each have their own IP address, each in a hardware connection of a host of the server ( 34 ) are listed.
  4. Method according to one of the preceding claims, characterized in that the devices ( 10 ) via a field bus ( 20 ) of the network ( 12 ) are controlled with control data and the software from the server ( 34 ) via an Ethernet connection ( 28 ) of the network ( 12 ) on the devices ( 10 ) is transmitted.
  5. Method according to claim 4, characterized in that the devices ( 10 ) via the fieldbus ( 20 ) with a runtime system of the vehicle ( 2 ) are connected and driven out of this in real time.
  6. Method according to one of the preceding claims, characterized in that the network ( 12 ) a real-time protocol and an Ethernet protocol on a common line ( 14 ) and the devices ( 10 ) are controlled via the real-time-capable protocol and the software is transmitted to the devices via the Ethernet protocol ( 10 ) is played.
  7. Method according to one of the preceding claims, characterized in that the virtual environments ( 44 ) each instruction ( 52 ) to a transmission protocol, after which the software is sent to the respective device ( 10 ) is transmitted.
  8. Method according to Claim 7, characterized in that the transmission protocol contains instructions ( 52 ) to a security level, after which the software is assigned to the respectively assigned device ( 10 ) is transmitted.
  9. A method according to claim 8, characterized in that the security level determines whether a simple file transfer, a checksum protected transmission or a certificate-protected transmission takes place.
  10. Rail vehicle ( 2 ) with a network ( 12 ) to which multiple devices ( 10 ) and a server ( 34 ) are connected to a network download service, the software for the devices ( 10 ), characterized in that the network ( 12 ) a virtualization platform ( 42 ) with multiple virtual environments ( 44 ), each of which has a device-type converter ( 46 ), and the transducers ( 46 ) in each case a device-side connection for the download service to their associated device ( 10 ) exhibit.
  11. Rail vehicle ( 2 ) according to claim 10, characterized in that the server ( 34 ) the virtualization platform ( 42 ) having.
  12. Rail vehicle ( 2 ) according to claim 10 or 11, characterized in that the devices ( 10 ) on a bogie ( 6 ) of the rail vehicle ( 2 ) are arranged.
  13. Rail vehicle ( 2 ) according to one of claims 10 to 12, characterized in that the devices ( 10 ) Measuring devices and / or control devices on a bogie ( 6 ) of the rail vehicle ( 2 ).
DE102016218429.6A 2016-09-26 2016-09-26 A method of operating multiple devices of different types on a network of a rail vehicle Pending DE102016218429A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102016218429.6A DE102016218429A1 (en) 2016-09-26 2016-09-26 A method of operating multiple devices of different types on a network of a rail vehicle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016218429.6A DE102016218429A1 (en) 2016-09-26 2016-09-26 A method of operating multiple devices of different types on a network of a rail vehicle
PCT/EP2017/072197 WO2018054680A1 (en) 2016-09-26 2017-09-05 Method for operating a plurality of different types of devices on a network of a rail vehicle

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
DE102018209797A1 (en) * 2018-06-18 2019-12-19 Siemens Mobility GmbH Use of a multi-core cable with four twisted pairs, which are shielded against each other, or a fiber optic cable as cabling for a rail vehicle and a rail vehicle

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EP2527936A1 (en) 2011-05-26 2012-11-28 Siemens Aktiengesellschaft Method for accessing an automation system and system operating according to the method
US20130191821A1 (en) 2011-01-11 2013-07-25 International Business Machines Corporation Transparent update of adapter firmware for self-virtualizing input/output device
US20130291085A1 (en) 2012-04-30 2013-10-31 General Electric Company Systems and methods for secure operation of an industrial controller

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DE102007030396A1 (en) 2007-06-29 2009-01-02 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Device for controlling a machine and remote communication system
DE102009026807A1 (en) 2009-06-08 2010-12-09 Robert Bosch Gmbh Method and device for fault monitoring of a complete system having multiple systems
US20130191821A1 (en) 2011-01-11 2013-07-25 International Business Machines Corporation Transparent update of adapter firmware for self-virtualizing input/output device
EP2527936A1 (en) 2011-05-26 2012-11-28 Siemens Aktiengesellschaft Method for accessing an automation system and system operating according to the method
US20130291085A1 (en) 2012-04-30 2013-10-31 General Electric Company Systems and methods for secure operation of an industrial controller

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DE102018209797A1 (en) * 2018-06-18 2019-12-19 Siemens Mobility GmbH Use of a multi-core cable with four twisted pairs, which are shielded against each other, or a fiber optic cable as cabling for a rail vehicle and a rail vehicle

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