| 摘要 |
PROBLEM TO BE SOLVED: To reduce labor for installation by dispensing with setting beforehand discrimination data such as an ID number relative to each ultrasonic sensor before mounting ultrasonic sensors. SOLUTION: A supply voltage wire 21 and a grounding wire 23 are connected to the plurality of ultrasonic sensors 1, and a signal wire 22 for transmitting a control signal from ECU 2 is connected thereto. Each ultrasonic sensor 1 is provided with a terminal T1 for receiving supply of a supply voltage from the supply voltage wire 21, a terminal T4 for connecting the grounding wire, and a terminal T3 for connecting the signal wire 22. In addition, the ultrasonic sensor 1 is provided with discrimination terminals T2, T5 for imparting ID numbers for discriminating each ultrasonic sensor, and the supply voltage wire 21 and the grounding wire 23 are connected thereto selectively respectively. COPYRIGHT: (C)2005,JPO&NCIPI
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