The invention relates to a method for operating two vehicles.
The publication US 2016/0359741 A1 discloses a method for transmitting data between coupled vehicles of a vehicle consist. In the already known method, the data is transmitted via the intermediary of a wayside switching device.
The object underlying the invention is to specify a particularly simple and reliable method for establishing communication links between vehicles that can be coupled together.
According to the invention, this object is achieved by a method having the features as claimed in the independent claim. Advantageous embodiments of the method according to the invention are set forth in sub-claim.
According to the invention, it is provided that a check is performed on board the vehicle in each case to ascertain whether a new coupling to another vehicle has taken place, and once a new coupling has been detected, a configuration signal indicating the coupling state is transmitted to a wayside switching device and, if a configuration signal of a first vehicle and a configuration signal of a second vehicle are present, a communication link is established between the two vehicles with the inclusion of the wayside switching device, or an existing communication link between the two vehicles is reconfigured.
An essential advantage of the method according to the invention is that a communication link can be established or an existing communication link can be reconfigured in an automated manner as soon as a new coupling between vehicles is detected. According to the invention, the establishment of communication links is thus combined with the detection of a mechanical coupling state between the vehicles.
It is considered advantageous if the establishment or reconfiguration of the communication link is only carried out if the two configuration signals are received within a specified time period.
In a particularly preferred embodiment of the method, it is provided that the first vehicle, after detection of coupling, sends a first configuration signal containing route information relating to the first vehicle and/or a code identifying the first vehicle to the wayside switching device, the second vehicle, after detection of coupling, transmits a second configuration signal containing route information relating to the second vehicle and/or a code identifying the second vehicle to the wayside switching device, and a check is performed by the first and/or second vehicle and/or wayside as to whether coupling of the two vehicles is plausible.
In the case of the latter variant, it is particularly advantageous if the communication link between the two vehicles is only established by the wayside switching device if the vehicle identification codes indicate that the vehicles are vehicles to be coupled or capable of being coupled together according to a predefined data set and/or the route information of the two vehicles indicates that they have the same destination or will at least be traveling over a common route section.
In addition, it is considered advantageous for each vehicle to check whether an existing coupling to the respective other vehicle has been released and, after uncoupling has been detected, for the communication link between the two vehicles to be cleared down by the vehicle or by the wayside switching device.
With regard to detection of the respective coupling state, it is considered advantageous if the checking and detection of the coupled state is performed by means of a sensor device of the first vehicle and a sensor device of the second vehicle, on detecting the coupled state, the sensor device of the first vehicle switches from a first sensor status indicating an uncoupled state to a second sensor status indicating a coupled state, and once the switchover from the first sensor status to the second sensor status has been detected, a communication device of the first vehicle connected to the sensor device of the first vehicle sends its configuration signal to the wayside switching device, and, on detecting the coupled state, the sensor device of the second vehicle switches from a first sensor status indicating an uncoupled state to a second sensor status indicating a coupled state, and once the switchover from the first sensor status to the second sensor status has been detected, a communication device of the second vehicle connected to the sensor device of the second vehicle transmits its configuration signal to the wayside switching device.
The coupling status can be detected particularly easily and reliably by means of switching contacts; accordingly, it is considered advantageous if the sensor device of the first vehicle and/or the sensor device of the second vehicle is constituted by an electrical switching contact or has an electrical switching contact which has a different switching state, i.e. contact position, in the coupled state of an associated coupling of the vehicle compared to the uncoupled state, thereby indicating the respective coupling state.
Alternatively or in addition, it can be advantageously provided that the sensor device of the first vehicle and/or the sensor device of the second vehicle is constituted by a signal sensor or has a signal sensor which detects an electrical or optical signal connection present in the coupled state of the vehicles and, in the event of such detection, generates a coupling signal indicating the coupled state of the vehicles.
At least one of the two vehicles is preferably a vehicle powered by one or a plurality of drives. With particular preference, both vehicles are powered by one or a plurality of drives.
It can also be advantageously provided that at least one of the two vehicles is multi-section and consists of two or more individual vehicles, powered or non-powered, connected to each other.
The vehicles are preferably rail vehicles.
The invention also relates to a vehicle for operating a communication link with another vehicle. With respect to such a vehicle it is inventively provided that the vehicle has a coupling device for establishing a coupled state with the other vehicle, the vehicle has a sensor device which is suitable for determining whether the coupling device is in a coupled or uncoupled state, and the vehicle has a communication device connected to the sensor device which, when it detects a transition from the uncoupled state to the coupled state, transmits a configuration signal indicating the coupled state to a wayside switching device.
With regard to the advantages of the vehicle according to the invention, the above statements in connection with the method according to the invention are incorporated by reference herein.
The sensor device of the vehicle is preferably constituted by an electrical switching contact or preferably has an electrical switching contact which, in the coupled state of an associated coupling of the vehicle, has a different switching state or contact position compared to the uncoupled state, thereby indicating the respective coupling state.
The invention also relates to a line system comprising a wayside switching device which can communicate with vehicles running on the line system.
With regard to such a line system, it is provided according to the invention that the wayside switching device is designed such that, on receiving a first configuration signal indicating the coupled state of a first vehicle with another vehicle, and on receiving a second configuration signal indicating the coupled state of a second vehicle with another vehicle, it establishes communications between two vehicles or reconfigures an already existing communication link between the two vehicles.
In respect of the advantages of the line system according to the invention, the above statements in connection with the method according to the invention are incorporated by reference herein.
The wayside switching device is preferably designed such that it only interconnects the two vehicles if the first and second configuration signals reach it within a specified period of time.
The wayside switching device preferably has two or more wayside access devices which are interconnected and each capable of communicating with one or more vehicles and suitable for operating the communication link between two vehicles with the inclusion of two or more wayside access devices.
On receiving two configuration signals, the wayside switching device preferably checks whether it is plausible for the two vehicles sending the configuration signals to be coupled.
The wayside switching device is preferably designed or configured in such a way that it only establishes the communication link between the two vehicles if vehicle identification codes indicate that the vehicles are vehicles to be coupled or capable of being coupled to one other according to a predefined data set, and/or route information of the two vehicles indicates that they have the same destination or will at least be traveling over a common route section.
The wayside switching device is preferably designed or configured such that it clears down the communication link if at least one of the two vehicles indicates decoupling of the vehicles.
The invention will now be explained in more detail with reference to exemplary embodiments.
In the figures, the same reference characters are always used for identical or comparable components.
The two vehicles 11 and 12 each have a coupling device 100, a sensor device 110 and a communication device 120. In the following, it is assumed by way of example that the two vehicles 11 and 12 are identical in terms of the coupling device 100, the sensor device 110 and the communication device 120; explanations/statements relating to the vehicle 11 thus apply accordingly to vehicle 12, and vice versa.
The coupling devices 100 allow a mechanical connection between the vehicles 11 and 12 so that, when coupled together, they form a vehicle consist or more specifically, in
On detecting a coupled state, the sensor devices 110 of the two vehicles 11 and 12 are each designed to switch from a first sensor status indicating an uncoupled state to a second sensor status indicating a coupled state. By means of a sensor signal S, the respective sensor status of the sensor device 110 is read by the communication device 120 which therefore knows the coupling state of the coupling 100 of the respective vehicle at any time.
The line system 5 is also equipped with a wayside switching device 20 which can communicate with each of the two vehicles 11 and 12 or rather with their communication devices 120, e.g. by radio. The radio link between the switching device 20 and the vehicles 11 and 12 can be e.g. WLAN-, GSM- or LTE-based.
The vehicles 11 and 12 and the wayside switching device 20 preferably interoperate as follows:
Once the two vehicles 11 and 12 have been coupled together as shown in
On receiving the information that a coupled state now obtains, the communication devices 120 of the two vehicles 11 and 12 will each send a configuration signal A to the wayside switching device 20, informing said wayside switching device 20 that coupling to another vehicle has taken place.
When the corresponding configuration signal A of the vehicle 11 and the configuration signal A of the vehicle 12 are present, the wayside switching device 20 will establish a communication link 200 (cf.
If a communication link already existed prior to the coupling, it is preferable for it to be reconfigured. Reconfiguration of an existing communication link 200 may, for example, consist of conveying as part of the further communication that the two vehicles 11 and 12 are coupled to one other; before establishing the coupling state, it can be conveyed, for example, that the vehicles 11 and 12 are not coupled to one other.
In order to prevent the wayside switching device 20 from connecting vehicles which have not actually been coupled together but have merely transmitted configuration signals A to the switching device 20 shortly after one another, it is considered advantageous if the switching device 20 establishes the communication link 200 between the vehicles 11 and 12 only if it receives the communication signals A of the two vehicles 11 and 12 within a predetermined, preferably relatively brief, time period. The time period is preferably no more than one second.
In the following, it will be assumed by way of example that the vehicles 11 and 12 on the track 51 are coupled together as explained in connection with
Because of the simultaneous or chronologically proximate coupling of vehicles 11 and 12 on the one hand and 13 and 14 on the other, the situation now arises that the wayside switching device 20 receives configuration signals A simultaneously or at almost the same time from a total of four vehicles, namely from the vehicles 11, 12, 13 and 14. The wayside switching device 20 is therefore unable to determine unequivocally which of the vehicles 11 to 14 has to be connected to which other vehicle in terms of communication.
In order to solve this problem, according to the method variant shown in
On the basis of the destination information ZI and Z2, the switching device 20 can now determine that the vehicles 11 and 12 must be linked together in terms of communication and the vehicles 13 and 14 likewise. A wrong communication link between individual vehicles can be easily prevented by the additional transmission of the destination information ZI and Z2.
Instead of or in addition to destination information ZI and Z2 indicating the respective destination, route information can also be transmitted which describes the respective route and thus indicates whether the vehicles will be traveling over at least one common route section.
After being coupled to another vehicle, the vehicles 11 to 14 transmit a configuration signal A in each case indicating the respective identification code of the individual vehicle in order to enable the wayside switching device 20 to establish correct communication links between the vehicles. In the exemplary embodiment shown in
Stored in the wayside switching device 20 is a data set DS which indicates which vehicles can or are to be coupled together and which not. For example, the data set DS may store the fact that the vehicles 11 and 12 can be coupled together, but not the vehicles 11 and 13 or 11 and 14. In addition, it can be stored that the vehicle 13 can be coupled to the vehicle 14, but not to the vehicles 11 and 12. Accordingly, by evaluation of the data set DS by the switching device 20, it can be determined that a communication link between the vehicles 11 and 12 and a communication link between the vehicles 13 and 14 must be established. This prevents incorrect communications linking of vehicles.
By evaluating the destination information ZI and Z2 as well as the identification codes K11 to K14, the wayside switching device 20 is thus able to determine particularly safely and reliably between which of the vehicles 11 to 14 communication links are or are not to be established; in this regard, the above statements in connection with
The vehicle 300 has powered individual vehicles 301 and non-powered individual vehicles 302. The powered individual vehicles 301 can be locomotives, for example, and the non-powered individual vehicles 302 can be railroad cars.
Although the invention has been illustrated and described in detail by preferred exemplary embodiments, the invention is not limited by the examples disclosed and other variations will be apparent to persons skilled in the art without departing from the scope of protection of the invention.
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