Energy-Efficient Electronic Card Using Reed Switches and NFC
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Solution Overview
Problem
In crowded conference settings, exchanging business cards can be challenging due to difficulty in recalling which card belongs to whom, and it's often impractical to meet and exchange cards with everyone one would like to, leading to inefficiencies in information exchange.
Innovation Solution
A portable electronic card device (ECD) system that uses magnets and reed switches to power on and off efficiently, allowing data exchange with a smartphone only when docked, minimizing power consumption and facilitating convenient storage and transfer of contact information using NFC for secure and energy-efficient communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the electronic card device remains powered on continuously to enable immediate data exchange, then the ease of operation is improved, but the energy consumption increases significantly
Solution Approach 1:
The electronic card device employs periodic action by powering on only when needed through proximity-based detection (when another ECD or mobile device is detected) and powering off when not in use. This intermittent operation mode allows the device to maintain readiness for data exchange only during relevant periods, significantly reducing overall energy consumption while preserving operational capability when required.
Solution Approach 2:
The device implements self-service through automatic power management based on environmental detection. When the ECD approaches another ECD or mobile device, the system automatically powers on and establishes communication without user intervention. Conversely, when no devices are detected, it automatically powers off. This self-regulating mechanism eliminates the need for manual power control while optimizing energy usage.
2Productivity
If the electronic card device powers on frequently to exchange data with multiple people, then the productivity of data exchange is improved, but the energy consumption increases
Solution Approach 1:
The system performs preliminary action by detecting the presence of mobile devices or other ECDs before initiating data exchange operations. This preliminary detection phase allows the device to power on only when a potential data exchange partner is nearby, avoiding unnecessary power-on cycles when no exchange is possible, thereby maintaining high productivity while minimizing energy waste.
Solution Approach 2:
The electronic card device utilizes feedback mechanisms where the detection of proximity to mobile devices or other ECDs triggers automatic power-on, and the absence of such signals triggers power-off. This feedback loop ensures the device operates only when data exchange is feasible, optimizing the balance between exchange productivity and energy consumption.
3Reliability
If the electronic card device uses NFC for data transmission, then the security and efficiency of communication is improved, but the complexity of the device increases
Solution Approach 1:
The electronic card device achieves universality by integrating NFC technology that serves multiple functions: secure data transmission, proximity detection for power management, and communication with both mobile devices and other ECDs. This multi-functional approach consolidates several capabilities into a single technology, reducing overall device complexity while maintaining high security and efficiency standards.
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
Enables efficient and secure exchange of contact information, reducing the need for manual recall and allowing users to connect with others based on shared interests, while minimizing battery usage and preventing accidental data transmission.
Implementation Method 1
a first reed switch and a second reed switch. The first reed switch may be configured to power on the first ECD responsive to the first ECD engaging a second ECD
Implementation Method 2
a docking component configured to receive the first ECD. The docking component may include a magnet configured to engage the second reed switch to power on the first ECD responsive to the first ECD being received by the docking component
Data Source
AI summary
A method, computer system, and a computer program product for energy efficient data exchange is provided. The present invention may include a first electronic card device (ECD) including a first switch and a second switch. The present invention may include the first switch being configured to power on the first ECD responsive to the first ECD engaging a second ECD. The present invention may include the first ECD being configured to exchange data with the second ECD. The present invention may include a docking component configured to receive the first ECD. The present invention may include the docking component including an actuator configured to engage the second switch to power on the first ECD when the first ECD is received by the docking component. The present invention may include the first ECD configured to transfer received data from the second ECD to a mobile device associated with the docking component.