PROBLEM TO BE SOLVED: To reduce a processing load of data analysis, and eliminate direct attachment of a sensor to a body for thereby reducing a psychological load.SOLUTION: A sensor unit 10A comprising a five-layer structure is formed by laminating insulation cloth bodies 111, 121, conductive patterns 112a, 122a and an insulation sheet 13. Reduction of resistance between the conductive patterns 112a, 122a when tear or sweat is adhered to the sensor unit 10A is detected by a resistance value measurement part 21a, then sensor data containing information indicating a detection time or period of the resistance value, and information indicating a kind of a body fluid, is sent to an information processing server 4 through a user terminal 2. The information processing server 4 estimates which scene in a movie or a drama being watched by a user makes the user be impressed or be excited, based on information indicating the kind of the body fluid and information indicating the detection time or period, included in the sensor data.SELECTED DRAWING: Figure 2【課題】データ解析の処理負荷が少なく、かつ身体へのセンサの直接的な装着を不要にして心理的負担の軽減を図る。【解決手段】絶縁性布体１１１，１２１と導電性パターン１１２ａ，１２２ａと絶縁性シート１３とを重ね合わせて５層構造のセンサユニット１０Ａを構成し、このセンサユニット１０Ａに涙又は汗が付着したときの上記導電性パターン１１２ａ，１２２ａ間の抵抗の低下を抵抗値計測部２１ａにより検出して、その検出時刻又は期間を表す情報と体液の種類を表す情報を含むセンサデータを、利用者端末２を介して情報処理サーバ４へ転送する。情報処理サーバ４では、上記センサデータに含まれる体液の種類を表す情報と検出時刻又は期間を示す情報をもとに、利用者が鑑賞中の映画又はドラマのどのシーンで感動又は興奮したのかを推定する。【選択図】図２
