| 摘要 |
<p>An operation terminal (1) is constituted so as to transmit, as a control command, an individual control command transmitted individually to a specific control device of that of multiple control terminals (2), or a collective control command broadcasted collectively to the control device of two or more of the multiple control terminals (2). The control terminals (2) are provided with a command determination unit (2d) for determining whether a received control command is an individual control command or a collective control command, and an information processing unit (2b) which, if the received control command is an individual control command, responds by collectively broadcasting to multiple operation terminals (1) a state change notification corresponding to the execution of said individual control command, and, if the received control command is a collective control command, responds by collectively broadcasting to the multiple operation terminals (1), with a timing different from that of the other control terminals (2), a state change notification corresponding to the execution of said collective control command.</p> |
