In-vehicle device, in-vehicle network system, and information processing method

An in-vehicle network system comprising:

• an in-vehicle device;
• another device;
• and
• a plurality of reference devices for transmitting time synchronization information,
• wherein if the in-vehicle device receives a frame in which the time synchronization information is stored, the in-vehicle device stores the time synchronization information in a specific queue with priority over other information, and transmits the stored time synchronization information to the other device, and
• the other device receives the time synchronization information transmitted from the in-vehicle device and performs time synchronization based on the received time synchronization information.

An information processing method for an in-vehicle device for receiving time synchronization information transmitted from each of a plurality of reference devices and transmitting the received time synchronization information to another device, comprising:

• a step of receiving a frame from the other device;
• a step of storing the time synchronization information in a specific queue with priority over other information if a frame in which the time synchronization information is stored is received;
• and
• a step of transmitting the time synchronization information stored in the specific queue to the other device.