Apparatus and method for converting protocol by type of data and vehicle system

A method of converting a protocol by a type of data, the method comprising:

• storing a conversion table that is configured to define a protocol conversion method depending on the type of data;
• when Controller Area Network (CAN) data are received from a CAN node in a vehicle, calling the conversion table to determine the protocol conversion method corresponding to a type of the CAN data;
• converting a communication protocol of the CAN data to an Ethernet-based communication protocol based on the protocol conversion method that is determined corresponding to the type of the CAN data;
• and
• converting a message format of the CAN data to an Ethernet message format to transmit the CAN data to an external server,
• wherein calling the conversion table to determine the protocol conversion method corresponding to the type of the CAN data comprises:
• defining, with a static conversion table, a Media Access Control (MAC) layer conversion method as the protocol conversion method for multimedia data;
• defining, with the static conversion table, a Transmission Control Protocol (TCP) layer conversion method or a User Datagram Protocol (UDP)/TCP layer conversion method as the protocol conversion method for real-time control data;
• defining, with the static conversion table, an Internet Protocol (IP) layer conversion method as the protocol conversion method for diagnostic communication data;
• and
• defining, with a dynamic conversion table, a protocol conversion method that is added or supplemented depending on a real-time control situation of the vehicle.

A vehicle system comprising:

• a Controller Area Network (CAN) node configured to:
• connect to a plurality of control units that are installed in a vehicle;
• and
• transmit CAN data;
• and
• when the CAN data is received from the CAN node in the vehicle, a protocol conversion apparatus configured to:
• call a conversion table that defines a protocol conversion method by a type of data;
• determine the protocol conversion method corresponding to a type of the CAN data;
• convert a communication protocol of the CAN data to an Ethernet-based communication protocol based on the protocol conversion method that is determined corresponding to the type of the CAN data;
• and
• convert a message format of the CAN data to an Ethernet message format;
• and transmit the CAN data to an external server,
• wherein the conversion table comprises a static conversion table that is configured to:
• define a Media Access Control (MAC) layer conversion method as the protocol conversion method for multimedia data;
• define a Transmission Control Protocol (TCP) layer conversion method or a User Datagram Protocol (UDP)/TCP layer conversion method as the protocol conversion method for real-time control data;
• and
• define an Internet Protocol (IP) layer conversion method as the protocol conversion method for diagnostic communication data.