Id control device, id control system, multi-screen display system, id control method, and program

Abstract

An identifier control device includes a cumulative transmission and reception initiation control unit that instructs a plurality of controlled devices. A network formed by connecting the plurality of controlled devices by daisy chaining, to initiate cumulative transmission and reception in which, after received data is temporarily accumulated over a predetermined accumulation time, and data transmission is performed in response to the received data.

1 . An identifier control device comprising:
 a cumulative transmission and reception initiation control unit that instructs a plurality of controlled devices, via a network formed by connecting the plurality of controlled devices by daisy chaining, to initiate cumulative transmission and reception in which, after received data is temporarily accumulated over a predetermined accumulation time, data transmission is performed in response to the received data;   a distance determination command transmission unit that transmits to each of the plurality of controlled devices via the network a distance determination command for determining distances on the network with respect to the respective plurality of controlled devices, after initiation of the cumulative transmission and reception is instructed by the cumulative transmission and reception initiation control unit;   a distance recognition unit that determines the distances on the network with respect to the respective plurality of controlled devices, based on response signals with respect to the distance determination command, the response signals being transmitted by the respective plurality of controlled devices after the accumulation time has elapsed from when each of the plurality of controlled devices receives the distance determination command; and   an identifier control unit that sets to each of the plurality of controlled devices, via the network, an identifier for each of the plurality of controlled devices determined based on the distances on the network with respect to the respective plurality of controlled devices recognized by the distance recognition unit.