PROBLEM TO BE SOLVED: To provide an information collection system using a transmitter with self-supporting power supply.SOLUTION: An information collection system 1 includes: a transmitter 10 with self-supporting power supply that can move together with a mobile body (purchaser) A1, and autonomously and intermittently transmits a transmitter ID at timing corresponding to the amount of movement of the mobile body A1； a plurality of receivers 20 that are provided in a monitoring object area X where the mobile body A1 can freely move, and receive the transmitter ID transmitted by the transmitter 10 situated in the vicinity of them； and a server 30 that associates and manages the transmitter ID, positional information (receiver ID) on a receiver 20 that has received the transmitter ID, and reception time of the transmitter ID.SELECTED DRAWING: Figure 1【課題】自立電源型の発信機を用いた情報収集システムを提供する。【解決手段】情報収集システム１は、移動体（購買者）Ａ１に伴って移動可能であり、移動体Ａ１の移動量に応じたタイミングで発信機ＩＤを自発的に間欠発信する自立電源型の発信機１０と；移動体Ａ１が自由に移動することのできる監視対象エリアＸに設けられており、その近傍に存在する発信機１０から発信された発信機ＩＤを受信する複数の受信機２０と；発信機ＩＤと、発信機ＩＤを受信した受信機２０の位置情報（受信機ＩＤ）と、発信機ＩＤの受信時刻とを関連付けて管理するサーバ３０と；を有する。【選択図】図１
