Method and device for transmitting a message in a vehicle
A method for transmitting a message in a vehicle, in which the message is received according to a source protocol, a communication mechanism which is used by the message and corresponds to the source protocol is converted in such a way that the communication mechanism corresponds to a canonical protocol, the communication mechanism corresponding to the canonical protocol is converted in such a way that the communication mechanism corresponds to a predefined target protocol, and the message is transmitted according to the target protocol.
1. A method for transmitting a message in a vehicle, comprising:
receiving the message according to a source protocol from a first component in the vehicle;
converting, by a gateway in the vehicle, a communication mechanism which is used by the message and corresponds to the source protocol in such a way that the communication mechanism corresponds to a canonical protocol;
converting, by the gateway, the communication mechanism corresponding to the canonical protocol in such a way that the communication mechanism corresponds to a predefined target protocol;
after receipt, converting, by the gateway, a description of data or a service performed with the aid of the message in such a way that the description corresponds to the canonical protocol;
converting, by the gateway, the description corresponding to the canonical protocol before transmission in such a way that the description corresponds to the target protocol; and
transmitting the message according to the target protocol over a communication system in the vehicle, wherein the description excludes any metadata.
2. The method as recited in claim 1 , further comprising:
after receipt, reformatting data of the message corresponding to the source protocol in such a way that the data correspond to the canonical protocol; and
reformatting the data corresponding to the canonical protocol before transmission in such a way that the data correspond to the target protocol.
3. The method as recited in claim 1 , wherein one of:
the description includes an identification number describing the contents of the message,
the description includes an identification number for identifying a provider of the data or of the service,
the description includes a version number, or
the description includes continuative attributes.
4. The method as recited in claim 1 , wherein at least one of:
the source protocol or the target protocol is CAN,
the source protocol or the target protocol is SOME/IP,
the source protocol or the target protocol is FlexRay,
the source protocol or the target protocol is MQTT,
the source protocol or the target protocol is AMQP,
the source protocol or the target protocol is XMPP,
the source protocol or the target protocol is DDS, or
the source protocol or the target protocol is CoAP.
5. The method as recited in claim 1 , wherein one of:
the message is received by a control unit of the vehicle, or
the message is transmitted to a control unit of the vehicle.
6. The method as recited in claim 1 , wherein at least one of:
the message is received by an outside world of the vehicle, or
the message is transmitted to an outside world of the vehicle.
7. The method as recited in claim 1 , further comprising:
receiving the message according to the target protocol at a second gateway in the vehicle;
converting, by the second gateway, a communication mechanism which is used by the message according to the target protocol in such a way that the communication mechanism which is used by the message according to the target protocol corresponds to the canonical protocol;
converting, by the second gateway, the communication mechanism corresponding to the canonical protocol in such a way that the communication mechanism corresponds to a second target protocol; and
transmitting the message according to the second target protocol to a second component in the vehicle.
8. A non-transitory machine-readable memory medium, on which is stored a computer program for transmitting a message in a vehicle, the computer program, when executed by a computer, causing the computer to perform:
receiving the message according to a source protocol from a first component in the vehicle;
converting, by a gateway in the vehicle, a communication mechanism which is used by the message and corresponds to the source protocol in such a way that the communication mechanism corresponds to a canonical protocol;
converting, by the gateway, the communication mechanism corresponding to the canonical protocol in such a way that the communication mechanism corresponds to a predefined target protocol;
after receipt, converting, by the gateway, a description of data or a service performed with the aid of the message in such a way that the description corresponds to the canonical protocol;
converting, by the gateway, the description corresponding to the canonical protocol before transmission in such a way that the description corresponds to the target protocol; and
transmitting the message according to the target protocol over a communication system in the vehicle, wherein the description excludes any metadata.
9. The non-transitory machine-readable memory medium as recited in claim 8 , the computer program, when executed by the computer, causing the computer to further perform:
receiving the message according to the target protocol at a second gateway in the vehicle;
converting, by the second gateway, a communication mechanism which is used by the message according to the target protocol in such a way that the communication mechanism which is used by the message according to the target protocol corresponds to the canonical protocol;
converting, by the second gateway, the communication mechanism corresponding to the canonical protocol in such a way that the communication mechanism corresponds to a second target protocol; and
transmitting the message according to the second target protocol to a second component in the vehicle.
10. A system for transmitting a message in a vehicle, comprising:
a device configured to:
receive the message according to a source protocol from a first component in the vehicle;
convert a communication mechanism which is used by the message and corresponds to the source protocol in such a way that the communication mechanism corresponds to a canonical protocol;
convert the communication mechanism corresponding to the canonical protocol in such a way that the communication mechanism corresponds to a predefined target protocol;
after receipt, convert a description of data or a service performed with the aid of the message in such a way that the description corresponds to the canonical protocol;
convert the description corresponding to the canonical protocol before transmission in such a way that the description corresponds to the target protocol; and
transmit the message according to the target protocol over a communication system in the vehicle, wherein the device is a gateway in the vehicle, wherein the description excludes any metadata.
11. The system as recited in claim 10 , further comprising:
a second gateway disposed in the vehicle and configured to:
receive the message according to the target protocol;
convert a communication mechanism which is used by the message according to the target protocol in such a way that the communication mechanism which is used by the message according to the target protocol corresponds to the canonical protocol;
convert the communication mechanism corresponding to the canonical protocol in such a way that the communication mechanism corresponds to a second target protocol; and
transmit the message according to the second target protocol to a second component in the vehicle.