Patent ID: 9558134
Date: 2017-01-31
CPC Classifications: G06F,H04L

Claim:
1. An in-vehicle sensor which is used as each of a plurality of in-vehicle sensors mounted in a vehicle and connected to a communication bus constructed in the vehicle, comprising: a bus connection connector used for connection to the communication bus and including one or a plurality of communication external terminals to be connected to a communication line of the communication bus through which communication data flow, and one or a plurality of external terminals for setting, outside the in-vehicle sensor, each external terminal for setting being brought into one of two connection states composed of an open state in which the terminal is not connected to any potential and one potential connected state in which the terminal is connected to a predetermined potential, being brought into one of three or more connection states composed of the open state and a plurality of potential connected states in which the terminal is selectively connected to predetermined potentials different from one another, or being brought into one of two or more potential connected states in which the terminal is selectively connected to predetermined potentials different from one another; judgment means for judging the connection state(s) of the one or plurality of external terminals for setting when electric power is supplied to the in-vehicle sensor in a state in which the bus connection connector is connected to the communication bus; identifier generation means for generating an identifier of the in-vehicle sensor on the basis of the connection state(s) of the one or plurality of external terminals for setting judged by the judgment means; a nonvolatile storage section for storing the identifier; communication means for performing communications through the communication bus by using the identifier stored in the storage section; and storing means for storing an initial identifier first generated by the identifier generation means in the storage section as the identifier.