Contactless Card Reader Field Intensity Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image forming apparatuses face challenges in power saving for human detection sensors and contactless card readers, which are essential for efficient user authentication and power management.
Innovation Solution
The apparatus adjusts the field intensity level and detection level of the contactless card reader and human detection sensor dynamically based on user presence and authentication status, reducing power consumption by decreasing these levels when not needed while maintaining functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the field intensity level of the contactless card reader is maintained at a high level continuously, then the authentication reliability is improved, but the power consumption increases
Solution Approach 1:
The patent implements dynamic adjustment of the contactless card reader's field intensity level based on real-time detection of user presence. When a user is detected, the field intensity is increased to ensure reliable authentication; when no user is present, the field intensity is reduced to minimize power consumption. This dynamic adaptation resolves the contradiction between maintaining high authentication reliability and reducing power consumption.
Solution Approach 2:
The patent changes the operational parameters (field intensity level) of the contactless card reader based on environmental conditions (user presence). By adjusting the field intensity parameter dynamically rather than maintaining a fixed high level, the system achieves both reliable authentication when needed and reduced power consumption when not needed.
2Measurement precision
If the detection level of the human detection sensor is maintained at a high level continuously, then the user presence detection accuracy is improved, but the power consumption increases
Solution Approach 1:
The patent implements periodic detection cycles where the human detection sensor operates at high detection levels only during intervals when user presence needs to be monitored. Between these periodic detection cycles, the sensor operates at lower power consumption levels. This periodic activation maintains detection accuracy when needed while significantly reducing overall power consumption.
Solution Approach 2:
The detection level of the human detection sensor is dynamically adjusted based on the operational state of the image forming apparatus. When the apparatus is in active use or in states requiring user interaction, the detection level is increased for accurate user presence detection. When the apparatus is idle or in low-activity states, the detection level is reduced to minimize power consumption.
3Reliability
If both the contactless card reader and human detection sensor operate continuously at high performance levels, then the authentication and detection functionality is ensured, but the overall power consumption of the image forming apparatus increases
Solution Approach 1:
The patent merges the control logic for the contactless card reader and human detection sensor into a unified power management system. Both components are controlled based on the same user presence detection signals and operational state, allowing coordinated adjustment of their operational levels. This integrated approach ensures that both authentication and detection functionalities are maintained when needed while reducing overall power consumption by avoiding redundant high-power operation.
Solution Approach 2:
The patent dynamically changes the operational parameters of both the contactless card reader (field intensity level) and the human detection sensor (detection level) based on the same environmental conditions and operational state. This coordinated parameter adjustment ensures that both systems maintain their functionality when required while minimizing the overall power consumption of the image forming apparatus during idle or low-activity periods.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach effectively decreases power consumption without compromising user convenience, optimizing energy usage by adjusting the field intensity and detection levels according to user proximity and authentication states.
Implementation Method 1
a contactless card reader 2 for reading identification information from an information recording medium
Implementation Method 2
a human detection sensor for detecting whether or not a user is present near the image forming apparatus
Data Source
AI summary
An image forming apparatus includes an interface and a control circuit. The interface is configured to connect a contactless card reader. The control circuit is configured to acquire identification information read from an information recording medium by the contactless card reader and to decrease a field intensity level of the contactless card reader in response to a success of authentication of the identification information.