| 摘要 |
<p>An apparatus for recognizing an entry/exit direction of a moving body includes a first moving body detection sensor; a second moving body detection sensor; and a control means connected to the first and second moving body detection sensors by wire/wireless to recognize as an entry of a moving body only when, after moving body detection signals of the first and second moving body detection sensors are received simultaneously or together for a first predetermined time, the moving body detection signal of the second moving body detection sensor is not lastly received, and to recognize as an exit of a moving body only when, after moving body detection signals of the first and second moving body detection sensors are received simultaneously or together for a first predetermined time, the moving body detection signal of the first moving body detection sensor is not lastly received.</p> |
