Patent ID: 11909755
Assignee: DENSO CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC G  H

Claim 0:
1. A log collection system comprising:
a log transmission controller configured to be equipped in a moving object; and
a server configured to be disposed at exterior of the moving object,
wherein the log transmission controller includes:
a log acquirer configured to acquire a log indicating respective states of a plurality of electronic control units connected to the log transmission controller;
a priority storage configured to store priority information indicating a priority for transmitting the log to the server;
an update instruction acquirer configured to acquire
a first update instruction, which is an update instruction generated by an update instructor configured to be equipped in the moving object, for instructing to update the priority information stored in the priority storage,
a second update instruction, which is an update instruction generated by the server, for instructing to update the priority information, and
a third update instruction, which is an update instruction generated by the server, for instructing to update the priority information;

a priority updater configured to update the priority information based on the first update instruction, the second update instruction, and the third update instruction; and
a transmitter configured to transmit the log to the server based on a priority indicated by the priority information that is updated, and

wherein the server includes:
a communicator configured to receive the log transmitted from the transmitter;
a log analyzer configured to analyze the log received by the communicator and analyze a security fault generated at the moving object; and
a server-side instruction generator configured to generate the second update instruction and the third update instruction for instructing to update the priority information based on an analysis result of the log analyzer,

wherein the communicator is further configured to transmit the second update instruction and the third instruction to the log transmission controller,
wherein the first update instruction and the second update instruction are instructions to update the priority indicated by the priority information to be higher than a predetermined priority, and
wherein the third update instruction is an instruction to update the priority indicated by the priority to the predetermined priority.