Patent ID: 11947970
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 5:
6. The information processing device according to claim 5,
wherein the plurality of first controllers include a plurality of dependent controllers having a dependence relation,
for each of the plurality of dependent controllers,
the virtual storage includes a first dependent storage area and a second dependent storage area that correspond to the dependent controller among the plurality of first storage areas and the plurality of second storage areas,
one of the first dependent storage area and the second dependent storage area that correspond to the dependent controller stores the first program to be executed by the dependent controller on start-up,
when obtaining, from the external device, the second program that is the update for the dependent controller, the update controller causes a remaining one of the first dependent storage area and the second dependent storage area that correspond to the dependent controller to store the second program obtained, and
the update controller switches the program to be executed by the dependent controller on start-up from the first program to the second program stored in the remaining one of the dependent storage areas, after the second program is stored in the remaining one of the dependent storage areas, and

when an anomaly is detected in at least one of the plurality of dependent controllers that has executed the second program, the update controller switches again the program to be executed by each of the plurality of dependent controllers on start-up from the second program to the first program stored in the one of the dependent storage areas.