Abstract:
A method for inputting ETCS data into a rail vehicle inputs the ETCS data by using an apparatus which is separate from the rail vehicle. The apparatus can, for example, be constructed to be mobile and the ETCS data can be input flexibly at different locations and be transmitted to the rail vehicle, for example, by SMS. The advantage of this approach is that delays resulting from the inputting of ETCS data can be reduced and thus the rail vehicle reaches a “Start of Mission” state more quickly. An apparatus for inputting ETCS data into a rail vehicle and a rail vehicle with an ETCS device are also provided.

Description:
BACKGROUND OF THE INVENTION 
     Field of the Invention 
     The invention relates to a method and an apparatus for inputting ETCS data into a rail vehicle and to a corresponding rail vehicle. 
     The European Train Control System (abbreviated ETCS) is a component of a standardized European rail traffic management system that was developed under the abbreviation ERTMS. The second technical component of this digital rail technology is the rail mobile radio system GSM-R. ETCS is intended to replace the variety of individual train protection systems in use in the different countries. 
     ETCS carries out several functions. It monitors the local maximum speed, the maximum speed of the train, the correct route of the train, the direction of travel, the suitability of the train for the route and the maintaining of specific operational regulations. 
     These items of information are processed by the modules of the ETCS:
         lineside, the Eurobalise beacons or Euroloops installed trackside for ETCS Level 1, and with ETCS Level 2 and 3, the RBC (Radio Block Centre) connected to the switch tower,   on the vehicle side the ETCS Onboard Unit (OBU) that processes the received data, displays it to the traction vehicle driver and automatically halts the train before a danger point in the case of danger.       

     The ETCS vehicle device consists principally of an ETCS computer (also called EVC—European Vital Computer), a DMI (Driver Machine Interface) display, position sensor, GSM-R data carrier (including Euroradio), balise reader and access to the brakes. 
     In addition to the ETCS levels, ETCS modes are defined. The modes describe the states in which the EVC can be. An overview is available, for example in the ETCS vehicle device of a vehicle requires, in the context of a “Start Of Mission” (the start of a journey of the rail vehicle), the inputting of train data and the selection of a Level and a Mode. This input of data is done by a traction vehicle driver using the interface provided for this purpose (the DMI: Driver Machine Interface) installed in the driver cab of the rail vehicle. This inputting of data requires a certain time duration and can be done only on the rail vehicle itself. 
     This results in the disadvantage that through manual inputting at the location, in other words at the DMI interface in the driver cab of the rail vehicle, time is lost, which can sometimes also result in delays in the train schedule. 
     BRIEF SUMMARY OF THE INVENTION 
     The object of the invention consists in the avoidance of the disadvantage stated above and in particular the creation of an efficient and time-saving approach of acquiring the required data before the train journey. 
     This object is achieved in accordance with the features of the independent claims. Preferred embodiments can be taken from the dependent claims in particular. 
     To achieve the object a method is proposed for the input of ETCS data into a rail vehicle,
         in which the ETCS data is captured by a unit,   in which the ETCS data is transmitted from the unit to the rail vehicle.       

     The ETCS data is data that is intended for the ETCS vehicle device of the rail vehicle and can be used by the rail vehicle. It includes in particular such data as is to be transmitted to the rail vehicle before the start of a rail journey. 
     This suggestion thereby creates a possibility of inputting ETCS data that requires fewer operator actions by the traction vehicle driver on-site on the rail vehicle and can therefore be carried out more quickly. The rail vehicle is thereby more quickly ready to complete the next journey. 
     It should be noted here that the rail vehicle (also referred to as “train”) has at least one carriage, which carriage can be a traction vehicle, a passenger car, a freight car or a combination of such compartments or functions. The traction vehicle has a driver cab (also called operator station) and can be implemented powered or unpowered. The traction vehicle can in particular be a locomotive. 
     It is a development that the ETCS data includes at least one of the following items of information:
         train data,   an ETCS Level,   an ETCS Mode.       

     It is another development that the train data includes at least one of the following items of information:
         a maximum speed of the rail vehicle,   a length of the rail vehicle,   a brake power of the rail vehicle.       

     In particular it is a development that the unit is a portable unit, in particular a mobile computer, a tablet PC or a smartphone. 
     It is also a development that the unit is a stationary computer, in particular an operating terminal. 
     In addition is it a development that the ETCS data is transmitted to the rail vehicle by means of at least one message, in particular an SMS message. 
     In this matter is can be advantageous that the SMS message is received by a GSM-R module of the rail vehicle and is appropriately evaluated and implemented in the rail vehicle. 
     In the context of a further development it is an option that the at least one message has a sender identifier and/or a destination identifier. 
     Using the sender identifier, the source of the message can be determined and, if appropriate, (automatically) checked. Optionally, using the destination identifier, it can be checked whether the data was transmitted to the correct rail vehicle. 
     Both the sender identifier and the destination identifier can be encrypted or encoded to avoid inputting fake or erroneous messages. By way of example, symmetric and/or asymmetric cryptographic mechanisms can be used in this. 
     A subsequent development is that the sender identifier is a telephone number wherein the valid sender identifiers are stored in the rail vehicle and wherein the stored sender identifiers are used in checking whether the sender identifier of a message is valid. 
     This enables it to be achieved that only valid sender identifiers are accepted. Optionally a warning can be issued or transmitted to a center if an invalid sender identifier was ascertained. 
     One embodiment is that the unit transmits the ETCS data to the rail vehicle via a wireless interface or via a wired interface or a combination of both interfaces. 
     The transmission can, for example, take place wirelessly through a radio interface, in particular through a mobile (tele-)communications interface (e.g. 2G, 3G, LTE, etc.). 
     One alternative embodiment consists in the ETCS data being transmitted, at least in part, from the unit through a center to the rail vehicle. 
     By way of example, the center also carries out a plausibility check on the transmitted data and/or the data is complemented before it is passed on to the rail vehicle. 
     A subsequent embodiment is that the transmitted ETCS data is displayed on an input terminal of the rail vehicle as preselected data. 
     It is also an embodiment that the data displayed as preselected data is accepted in the rail vehicle as soon as it has been at least partially confirmed. 
     A development consists in the confirmation of the data being a prerequisite for the ability of the rail vehicle to carry out the next journey. 
     An additional embodiment is that the ETCS data is determined at least partially automatically from dispositive data from the vehicle operation and transmitted to the rail vehicle. 
     The above embodiments are applicable as appropriate for the further claim categories. 
     The object stated above is also achieved by an apparatus for inputting ETCS data into a rail vehicle,
         with an input device by the use of which the ETCS data can be captured,   with a transmission device for transmitting the input ETCS data to the rail vehicle.       

     In addition the object stated above is achieved by means of a rail vehicle with an ETCS device that is configured such that
         ETCS data captured by a unit can be received and   the received ETCS data for adjustment of the ETCS device is accepted or displayed as suggested values for adjustment of the ETCS device.       

     The solution presented here includes in addition a computer program product that can be directly loaded into the memory of a digital computer, including program code sections that are suitable for carrying out steps of the method described here. 
     In addition the problem stated above is solved by means of a computer-readable storage medium, e.g. any selected memory, containing instructions that can be executed by a computer (e.g. in the form of program code) and which are appropriate for the computer to perform steps of the method described here. 
     The properties, features and advantages of this invention described above, and the manner in which they are achieved become clearer and more precisely understandable in conjunction with the following schematic description of exemplary embodiments that are explained in more detail in conjunction with the drawings. For clarity, equal elements or elements with equal effects can be given the same reference signs. 
    
    
     
       BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING 
       The drawings show: 
         FIG. 1  an exemplary scenario with a rail vehicle with an ETCS device; 
         FIG. 2  an exemplary schematic flow chart with steps of the method presented here for inputting ETCS data into a rail vehicle. 
     
    
    
     DESCRIPTION OF THE INVENTION 
     A possibility of inputting ETCS train data with a selection of Level and Mode is created, that requires fewer operator actions of the traction vehicle driver on-site on the rail vehicle and can therefore be carried out in a shorter time. 
     For this it is suggested that the train data to be input, the Level and/or Mode be input into a unit (e.g. a computer or a terminal), in particular a portable unit (e.g. a portable handheld unit, a cellular telephone, a smartphone, a tablet PC, a notebook etc.) and transmitted by this via a wireless or wired interface, in particular a radio interface of a telecommunications network (e.g. by use of the Short Message Service SMS) to the ETCS vehicle device. Preferably the (portable) unit incorporates for this purpose a suitable interface to the wired or wireless network, so that the inputs, e.g. in the form of at least one message, can be transmitted. It should be noted here that there also exist stationary units that can send a message, e.g. an SMS, via a wired or wireless interface, e.g. a connection to the Internet, to the ETCS vehicle device. 
     By way of example the unit, in particular in the form of a portable handheld unit, can be operated by a user, e.g. a traction vehicle driver, a shunter, a dispatcher etc. 
     The message, in particular the SMS, can be received by a GSM-R module of the ETCS vehicle device. The SMS can correspondingly be processed in a processing unit of the rail vehicle. By way of example, train data, Level and Mode can be extracted from the message and transmitted to the DMI. 
     In place of the GSM-R module, a separate GSM unit or an existing train radio unit (that is, for example, SMS-capable) can be used. 
     Train data, Level and Mode are displayed on the DMI by way of example as suggested values that the user, in particular the traction vehicle driver, can confirm. Through the confirmation the safety-related input continues to lie in the sphere of the ETCS vehicle device or with the actual input of train data. 
     In addition the message can have a sender identifier that can be displayed to inform the user, e.g. the traction vehicle driver, about the source of the data. Optionally a receiver identifier (e.g. a train number) can be displayed to show the destination of the data to the user so that the latter can quickly determine that it is the correct data for the current rail vehicle. 
     For the avoidance of receiving incorrect messages the valid sender telephone numbers or the valid sender identifiers can be stored in the ETCS vehicle device and automatically evaluated. An extension of the sender list can also be done using a message, e.g. SMS. If a sender identifier or sender telephone number is not stored in the ETCS vehicle device, a message from this sender in this scenario is not recognized as valid. Under some circumstances an error message can be issued or the message from a sender that is invalid in this way can be entirely suppressed. 
     The functionality presented here can be employed in all places to which the message, e.g. as SMS, can be sent and received. 
     A further option is that train data, Level and Mode can be automatically or semi-automatically derived from dispositive data and sent from a dispositive system (possibly also manually) to the ETCS vehicle device of the rail vehicle. 
     The approach presented here thereby makes it possible to transmit the train data, Level and Mode from a portable or stationary unit to the ETCS vehicle device of a rail vehicle. In this manner, previously necessary tasks of the traction vehicle driver can be transferred to other persons or from the location of the driver cab of the rail vehicle to other locations. By this means job sequences can be optimized and preparation times shortened. 
       FIG. 1  shows an exemplary scenario with a rail vehicle  101  with an ETCS device (also called ETCS vehicle device) comprising, among others, a computer  102 , a wireless interface  103  and a driver-machine interface  104 . The driver-machine interface  104  has means of input and output (a user interface) which enable a user, e.g. train driver, to interact with the computer  102 . 
     In addition  FIG. 1  shows a mobile unit  105 , e.g. a smartphone or a laptop, in addition to a stationary unit  106 , both of which have a connection to a network  107 . The network  107  can be or can include, for example, a WLAN, a fixed network, a (mobile) telecommunications network or similar. By use of the network  107  the units  105 ,  106  can communicate with the rail vehicle  101 , in particular transmit messages, e.g. in the form or one or more SMS, to the rail vehicle. 
     In addition a center  108  is provided that, for example, can receive messages from the units  105 ,  106 . In addition the center  108  can transmit messages to the rail vehicle  101 . 
     The center  108  is, by way of example, a computer or a computer network (that can also be arranged in a distributed manner). The center can be operated by an operator of the rail network or by a service provider. 
     The units  105 ,  106  can send messages, for example SMS messages, over the network  107  indirectly through the center  108  or directly to the rail vehicle  101 . If a message is initially sent to the center  108 , the center  108  can process this message, for example check its validity or content or complement it. The center  108  can, after processing the message, pass it onwards to the rail vehicle  101 . In addition be it noted that the center  108  can itself also transmit a message to the rail vehicle  101 . 
     The rail vehicle  101  receives the message via the wireless interface  103  and extracts ETCS data from the message (e.g. by means of the computer  102 ). The ETCS data can be checked, e.g. by means of a sender identifier and/or destination identifier contained in the message. The ETCS data can be entered as suggested values on the driver-machine interface  104 , so that it only requires to be confirmed by a user, e.g. train driver. A tedious input procedure by the user himself is no longer required. Alternatively or additionally it is possible to use the ETCS data from the message to set up the rail vehicle. After successful receipt and/or checking of the ETCS data the status “Start Of Mission” can be reached in the rail vehicle  101 , and the rail vehicle  101  is thus ready to carry out the next journey. 
       FIG. 2  shows an exemplary schematic flow chart with steps of the method presented here for inputting ETCS data into a rail vehicle. 
     In a step  201  the inputting of the ETCS data is done by means of a unit, e.g. a portable computer, a smartphone or a stationary terminal. In a step  202  the ETCS data is transmitted to the rail vehicle in the form of a message. Such a transmission can in some circumstances also be done via a center (see above embodiments). 
     In a step  203  the message is received in the rail vehicle and there follows optionally a check of the ETCS data contained in the message. By way of example in the context of such a check further data of the message, e.g. a sender identifier and/or a destination identifier can be taken in to account. 
     In a step  204  the ETCS data values are displayed as suggested values on a user interface of the driver-machine interface of the rail vehicle. The ETCS data can also be directly used for setting up the ETCS device of the rail vehicle. 
     In a step  205  the ETCS data is confirmed, e.g. by the train driver in the driver cab of the rail vehicle. The rail vehicle is then ready to carry out the next journey (step  206 ). 
     Although the invention was illustrated and described in detail by at least one exemplary embodiment, the invention is not limited to this and other variants can be derived from this by the person skilled in the art without departing from the protected scope of the invention. 
     LIST OF REFERENCE SIGNS 
     
         
           101  Rail vehicle 
           102  Computer of the rail vehicle (also designated ETCS computer or EVC) 
           103  Radio interface (e.g. GSM-R transmission device) 
           104  Driver-Machine Interface (DMI), input terminal 
           105  Mobile unit 
           106  Stationary unit 
           107  Network including, for example, a mobile telecommunications network, a fixed network, a WLAN and/or the Internet. 
           108  Center 
           201 - 206  Steps of a method for the input of ETCS data into a rail vehicle