A vehicle-mounted communication system in which a plurality of communication devices and a determination device for determining an abnormality regarding the communication devices are connected to each other via a bus, wherein the determination device includes: a transmitting unit that transmits a determination signal at a predetermined voltage to each of the communication devices; and a determination unit that determines the abnormality based on a response signal transmitted from each of the communication devices in response to the determination signal, each of the communication devices includes: a signal output unit that outputs a first logical value signal based on a unique voltage threshold, in response to a determination signal that is received; and a generating unit that generates a second logical value signal based on the first logical value signal, and the signal output unit outputs the response signal to the bus based on the second logical value signal.
VEHICLE-MOUNTED COMMUNICATION SYSTEM, DETERMINATION DEVICE, COMMUNICATION DEVICE, DETERMINATION METHOD, AND COMPUTER PROGRAM
2021-02-04
Patent
Electronic Resource
English
IPC: | G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr |
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