NFC Control via Radio Field Intensity Detection
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Solution Overview
Problem
Conventional digital information display devices require near field wireless communication to be constantly active, leading to unnecessary power consumption and inefficient use of communication resources.
Innovation Solution
A communication device equipped with a reception unit for receiving broadcast information, a detection unit to measure radio field intensity, and a control unit that activates or deactivates NFC based on detected radio field intensity, allowing for dynamic management of NFC functionality to prevent constant activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If near field wireless communication is kept always active to enable constant communication with digital information display devices, then communication availability is improved, but power consumption increases
Solution Approach 1:
The patent applies dynamics by making the NFC communication function switchable between active and inactive states based on detected radio field intensity. The system transitions from a static always-active configuration to a dynamic state-dependent configuration, where NFC is activated only when strong radio field signals are detected, thereby reducing unnecessary power consumption while maintaining communication availability when needed.
Solution Approach 2:
The patent changes the operational parameter of NFC from a fixed active state to a variable state determined by radio field intensity thresholds. By monitoring the intensity of received radio signals and comparing them against predetermined thresholds, the system adjusts NFC activation status accordingly, optimizing the balance between communication availability and power consumption.
2Reliability
If NFC is activated frequently to ensure communication readiness, then communication reliability is improved, but power consumption increases due to frequent switching
Solution Approach 1:
The patent implements feedback by continuously monitoring the radio field intensity of broadcast information and using this feedback to control NFC activation. The system receives radio signals, detects their intensity, and adjusts NFC state based on this feedback, ensuring NFC is active only when communication is actually needed rather than switching frequently, thus reducing power consumption while maintaining reliability.
Solution Approach 2:
The system performs preliminary detection of radio field intensity before activating NFC. By detecting the presence and strength of radio broadcast signals in advance, the system can proactively activate NFC only when necessary, avoiding unnecessary activation cycles and reducing power consumption while ensuring communication reliability when radio fields are detected.
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 solution reduces power consumption by ensuring NFC is only active when necessary, optimizing communication efficiency and minimizing frequent switching between active and inactive states.
Implementation Method 1
a detection unit which detects a radio field intensity of the received broadcast information
Data Source
AI summary
A communication device includes a reception unit, a detection unit and a control unit. The reception unit receives broadcast information broadcasted through first communication of a first communication system. The detection unit detects a radio field intensity of the received broadcast information. The control unit controls second communication of a second communication system based on the detected radio field intensity, thereby activating or deactivating the second communication.