Authentication Apparatus User Departure Detection
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Solution Overview
Problem
Existing authentication systems for image forming apparatuses do not effectively manage user authentication and error messaging, leading to unnecessary display of failure information to subsequent users after a previous user has departed.
Innovation Solution
An authentication apparatus with an imaging unit for capturing face images, an authenticating unit for verifying user identity, a display unit for showing failure information, and a departure detecting unit that stops displaying error messages when the user departs, ensuring only authorized users access the device and preventing erroneous inputs from subsequent users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If authentication failure information is continuously displayed on the display unit, then user awareness of authentication status is maintained, but subsequent users may be exposed to error messages intended for previous users leading to erroneous inputs
Solution Approach 1:
The display unit dynamically changes its operation state based on user presence detection. When a user is detected by the imaging unit, the display unit activates to show authentication information. When no user is detected (indicating user departure), the display unit transitions to a non-displaying state, thereby preventing error messages from being displayed to subsequent users while maintaining information availability for authenticated users.
2Ease of operation
If the display unit remains active to show authentication feedback, then user interaction is supported, but power consumption increases and sleep mode transitions are delayed
Solution Approach 1:
The system employs periodic user presence detection using the imaging unit to control display unit operation. The display unit is activated only during periods when user presence is detected and remains inactive during periods when no user is present, enabling the image forming apparatus to transition to sleep mode and reduce power consumption while maintaining authentication feedback capability when needed.
Data Source
AI summary
An authentication apparatus includes an imaging unit that captures a face image of a user, an authenticating unit that authenticates the user using the face image of the user captured by the imaging unit, a display unit that displays failure information if authentication of the user by the authenticating unit is unsuccessful, a departure detecting unit that detects a departure of the user, and a stopping unit that causes the display unit to stop displaying the failure information if the departure detecting unit detects the departure of the user.