METHOD AND DEVICE FOR DETECTING USER AND IMAGE FORMING DEVICE

PROBLEM TO BE SOLVED: To provide a method and a device for detecting users and an image forming device that can easily detect a user, using a simply-designed distance sensor, without requiring a signal processor having a high level of computing power.SOLUTION: An image forming device (1) includes a...

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Bibliographische Detailangaben
Hauptverfasser: IBUKI KENJI, WATABE TSUNEHISA, SHIMAZAKI IKUO, UENO SUGURU, SUGIMURA NORIFUMI, SHIOZAKI SEIYA
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a method and a device for detecting users and an image forming device that can easily detect a user, using a simply-designed distance sensor, without requiring a signal processor having a high level of computing power.SOLUTION: An image forming device (1) includes a distance sensor (10) detecting a user on the basis of distance information on a detected object (2), and a controller (40) having a user determination unit (44) for controlling the distance sensor (10). The user determination unit (44) has a first detection region (441), a second detection region (442), and a third detection region (443), and determines that the detected object (2) is a user if it has been detected in the first detection region (441), determines whether the detected object (2) is a user based on a detected distance and rate of the detection object (2) if it has been detected in the second detection region (442), and determines that the detected object (2) is not a user if it has been detected in the third detection region (443).SELECTED DRAWING: Figure 6 【課題】距離センサの構成を簡単にして、演算能力の高い信号処理部を必要とすることなく簡単な方式によりユーザ検出を行うことができるユーザ検出方法とユーザ検出装置及び画像形成装置を提供する。【解決手段】検出物体(2)の距離情報に基づきユーザを検出する距離センサ(10)を備える画像形成装置(1)において、距離センサ(10)を制御する制御部(40)はユーザ判定部(44)を備え、ユーザ判定部(44)は第1検出領域(441)、第2検出領域(442)、第3検出領域(443)が設定され、検出物体(2)が第1検出領域(441)で検出された場合はユーザであると判定し、第2検出領域(442)で検出された場合は検出物体(2)の検出距離と速度に基づきユーザであるか否かを判定し、第3検出領域(443)において検出された場合はユーザではないと判定することを特徴とする。【選択図】図6