Patent ID: 11951917
Assignee: AUTONETWORKS TECHNOLOGIES, LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B  H | IPC B  H

Claim 4:
5. A control method to be performed in a switching device configured to relay information between a plurality of function devices mounted to a vehicle, the control method comprising:
a step of extracting a first power source voltage from a first transmission path;
a step of supplying, via a second transmission path, a second voltage based on the extracted first power source voltage, to at least one of the plurality of function devices connected to the switching device; and
steps of, when a new function device is connected to the switching device, by the switching device:
transmitting a request for a media access control (MAC) address and authentication information to the new function device;
updating an address table using the MAC address received from the new function device;
receiving, in accordance with the authentication information received from the new function device, power source control information indicating whether or not to supply a third power source voltage to the new function device; and
switching whether or not to supply the third power source voltage to the new function device, in accordance with the power source control information received.