| 摘要 |
PRIMARY PASSENGER SENSORS (A) (21) ARE INSTALLED IN OUTER DECKS (14) NEAR THE ENTRANCE/EXIT OF A PAIR OF BALUSTRADES (13) SUCH THAT THE SENSOR OUTPUT SURFACES POINT IN THE DIRECTION IN WHICH PASSENGERS ENTER, AND PRIMARY PASSENGER SENSORS (B) (22) ARE INSTALLED IN INNER DECKS (15) NEAR THE ENTRANCE/EXIT OF THE PAIR OF BALUSTRADES (13) SUCH THAT THE SENSOR OUTPUT SURFACES ARE ROTATED INWARD TO MAKE A PREDETERMINED ANGLE WITH THE DIRECTION IN WHICH PASSENGERS ENTER, THEREBY FORMING A SENSING RANGE (26) HAVING A WIDTH SUBSTANTIALLY EQUAL TO A SPACING W BETWEEN THE PAIR OF BALUSTRADES (13), AND A LENGTH FALLING WITHIN A PREDETERMINED DISTANCE (L) FROM THE ENTRANCE/EXIT. BY SENSING THE PRESENCE/ABSENCE OF A PASSENGER WITHIN THIS SENSING RANGE (26), AN AUTOMATIC OPERATION CAN BE PERFORMED BY ACCURATELY SENSING ONLY PERSONS WHO USE A CONVEYOR BY THESE SENSORS. |
