Management apparatus, method for allocating identification information of onboard apparatus, onboard system, and data structure

A method for allocating identification information for an onboard apparatus connected to an onboard network, comprising:

• receiving, via a management apparatus connected to the onboard network and from an onboard apparatus, a request frame with identification information assigned including a unique ID for the onboard apparatus;
• generating, via the management apparatus, a response frame including identification information allocated to the received request frame;
• and
• transmitting, via the management apparatus, the generated response frame to the onboard apparatus which is a transmission source of the request frame.

An onboard system, comprising:

• a management apparatus connected to an onboard network;
• and
• an onboard apparatus connected to the onboard network, wherein the onboard apparatus includes:
• a first transmission unit configured to transmit a request frame with identification information assigned including a unique ID for the onboard apparatus,
• the management apparatus includes:
• a second reception unit configured to receive the request frame transmitted from the onboard apparatus;
• a generation unit configured to generate a response frame including identification information allocated to the request frame received by the second reception unit;
• and
• a second transmission unit configured to transmit the response frame generated by the generation unit to the onboard apparatus
• which is a transmission source of the request frame, and the onboard apparatus includes:
• a first reception unit configured to receive the response frame transmitted from the management apparatus;
• and
• a setting unit configured to set identification information included in the response frame received by the first reception unit as identification information of the onboard apparatus.

A data structure used in a request frame for an onboard apparatus connected to an onboard network to request allocation of identification information, comprising:

• an ID region;
• and
• a data region, wherein the ID region stores common identification information in the onboard network, and
• the data region stores a unique ID for an onboard apparatus which requests allocation of identification information and the number of requests for the identification information.

A data structure used in a response frame for responding to a request for identification information allocation by an onboard apparatus connected to an onboard network, comprising:

• an ID region;
• and
• a data region, wherein the ID region stores common identification information in the onboard network,
• the data region stores a unique ID for an onboard apparatus which requests allocation of identification information and identification information allocated to the onboard apparatus, and
• the data region stores the number of pieces of the identification information requested from the onboard apparatus.