In-vehicle sensor and in-vehicle sensor system
First Claim
1. An in-vehicle sensor which is to be mounted on a vehicle and is to be 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 each brought into a connection state which is either of a first connection state in which it is not connected to any potential outside the in-vehicle sensor and a second connection state in which it is connected to a ground potential outside the in-vehicle sensor;
a judgment section which judges for the one or plurality of external terminals for setting whether the connection state is the first connection state or the second connection state;
an identifier setting section which sets an identifier of the in-vehicle sensor used on the communication bus on the basis of the judged connection state(s) of the one or plurality of external terminals for setting; and
a microprocessor having an input signal port to which an input signal is input.
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Accused Products
Abstract
An in-vehicle sensor (1) mounted on a vehicle VE and connected to a communication bus CAN including a bus connection connector (40) for connection to the CAN and external terminals (T3, T4) for communication, and one or a plurality of external terminals (T5, T6) for setting each brought into either of a first connection state not connected to any potential and a second connection state connected to a ground potential GND; a judgment section S1-S4, S5-S7 for setting whether the connection state is the first connection state or the second connection state; and an identifier setting section S8 which sets an identifier ID of the in-vehicle sensor (1) used on the communication bus CAN based on the judged connection state(s) for setting of the one or plurality of external terminals (T5, T6).
15 Citations
6 Claims
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1. An in-vehicle sensor which is to be mounted on a vehicle and is to be connected to a communication bus constructed in the vehicle, comprising:
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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 each brought into a connection state which is either of a first connection state in which it is not connected to any potential outside the in-vehicle sensor and a second connection state in which it is connected to a ground potential outside the in-vehicle sensor; a judgment section which judges for the one or plurality of external terminals for setting whether the connection state is the first connection state or the second connection state; an identifier setting section which sets an identifier of the in-vehicle sensor used on the communication bus on the basis of the judged connection state(s) of the one or plurality of external terminals for setting; and a microprocessor having an input signal port to which an input signal is input. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification