PROBLEM TO BE SOLVED: To provide an illumination system in which an index in selection of action to be comfortable is presented, and also to provided an illumination control program and an illumination control method.SOLUTION: An illumination device 10 includes: a light-emitting body a communication part which transmits information transmission request to communication devices 21-24 attached to animals A, B, C, D and receives responses to the request a counting part for counting the number of communication devices 21-24 based on the responses received by the communication part and a control part which causes the light-emitting body to emit light in a form according to a value calculated by the counting part.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】快適に過ごすための行動の選択における指標を提示する照明システム、照明制御プログラム及び照明制御方法を提供する。【解決手段】照明装置10は、発光体と、動物A、B、C、Dに装着された通信機21~24に対して情報送信要求を送信し、該要求に対する応答を受信する通信部と、通信部により受信された応答に基づき、通信機21~24の数を計数する計数部と、計数部により算出された値に応じた様態で発光体を発光させる制御部と、を有する。【選択図】図1
