| 摘要 |
<p>PROBLEM TO BE SOLVED: To detect surely a person's seating, and to prevent wrong detection when baggage is placed. SOLUTION: A plurality of sensitive sensors 26 having resistance values changing based on a pushing pressure are divided into two groups, and each sensitive sensor 26 in the same group is connected in parallel, to thereby form a first parallel circuit 28a, 28b in each group. Resistors 30a, 30b are connected respectively in series to the first parallel circuits 28a, 28b, to thereby form a plurality of series circuits, and a second parallel circuit is formed by connecting the series circuits in parallel.</p> |
