BROADCASTING SYSTEM FOR ELEVATOR

摘要

PURPOSE: A broadcasting system for an elevator is provided to reduce power consumption of a system and easily vary contents of commercial advertisements. CONSTITUTION: A master apparatus and a slave apparatus(103) are included in a broadcasting system for an elevator. The master apparatus(101) stores one or more of broadcasting messages. The stored one or more broadcasting message data are transmitted to the slave apparatus(103) through a communication link. The slave apparatus(103) is installed within the elevator. The slave apparatus(103) stores the broadcasting messages from the master apparatus(101) and broadcasts the broadcasting messages according to whether a passenger exists or not. Sound input/output switches(109,109') control sounds of an acoustic signal inputted or output to the master apparatus(101). A plurality of control switches(111), a power switch(113), the sound input/output switches(109,109') and a display panel(107) are arranged on a front panel(105) of the master apparatus(101). A sound input terminal(115) stores an advertising broadcasting and a sound output terminal(115) outputs the stored broadcasting programs.