| 摘要 |
PROBLEM TO BE SOLVED: To provide an unspecified large number of people calling apparatus for calling and collecting all tourists at a designated place at a designated time since it is necessary for the instructor of a group tour in the scale of several tens or several hundreds of passengers to run a tour according to a determined tour program. SOLUTION: In the unspecified large number of people calling apparatus, the call SW of a master unit carried by the instructor of a group tour is pressed to notify all tourists of the time appointed for meeting, in a wireless communication based polling system, by means of LED flickering, buzzer sounding, vibration by vibrators or voice output through a loud speaker, with respect to slave units carried by all the tourists. COPYRIGHT: (C)2007,JPO&INPIT
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