Visible Light Communication Terminal for Radiation-Free Data Transfer
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Solution Overview
Problem
Conventional communication terminals using radio frequency waves face health risks and poor signal quality due to radiation, and they inefficiently utilize frequency resources.
Innovation Solution
A nonradiative communication terminal and system that employs visible light for communication, utilizing a visible light emission module, a reception module, and a central processing unit to transmit and receive data through light emitting diodes and light sensitive diodes, with high-speed switches and amplifiers to process signals, allowing for reliable and efficient data transfer without radiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If radio frequency waves are used for communication, then communication functionality is achieved, but radiation intensity increases causing health risks and signal quality degradation
Solution Approach 1:
The patent replaces radio frequency electromagnetic wave communication with visible light communication. The light emitting diode emits visible light modulated with data signals, and the light sensitive diode detects these light signals. This substitution eliminates radio frequency radiation while maintaining communication functionality, directly resolving the contradiction between reducing harmful radiation and ensuring reliable communication.
Solution Approach 2:
The patent changes the fundamental parameter of the communication medium from radio frequency electromagnetic waves to visible light. By modulating the intensity or frequency of visible light emission according to data signals and detecting these modulated light signals, the system achieves communication without radio frequency radiation, thus resolving the contradiction between radiation reduction and communication reliability.
2Adaptability or versatility
If radio frequency waves are used for communication, then communication is enabled, but frequency resources are inefficiently utilized
Solution Approach 1:
The patent transitions communication from the radio frequency spectrum to the visible light spectrum, effectively moving to another dimension of the electromagnetic spectrum. Visible light offers a vastly larger bandwidth and unused spectral resources compared to crowded radio frequency bands, enabling efficient resource utilization while maintaining reliable communication through optical modulation and detection techniques.
3Object-affected harmful factors
If visible light is used for communication, then radiation problems are solved, but additional modules (emission and reception) are required
Solution Approach 1:
The patent integrates the visible light emission and reception modules into the existing mobile phone structure. The light emitting diode can be incorporated into the display or camera module, while the light sensitive diode can be integrated with the ambient light sensor or camera sensor. This multi-functionality approach allows visible light communication functionality to be added without significantly increasing overall device complexity.
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 provides a healthy, radiation-free communication method that saves frequency resources, offers high stability and reliability, and achieves high transmission speeds, while also being cost-effective and non-invasive.
Implementation Method 1
A visible light emission module used for emitting visible light... The visible light emission module comprises a light emitting diode and a high-speed switch
Implementation Method 2
A visible light reception module used for receiving the visible light and converting the visible light to an electrical signal... the visible light reception unit comprises a light sensitive diode
Data Source
AI summary
A nonradiative communication terminal and a communication system which use visible light for communication are provided. The nonradiative communication terminal includes a visible light emission module, a visible light reception module, and a central processing unit. The visible light emission module and the visible light reception module are connected with the central processing unit. By using visible light to communicate with other visible light communication terminals, the advantages, such as nonradiation, saving frequency resources, stability and reliability in communication performance, low-cost communication, and high transmission speed are achieved.