Pulsed Light Communication System for Network Security
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Solution Overview
Problem
Existing Wi-Fi Internet security within buildings, particularly in public areas, is challenging due to the need to balance user convenience and data security, and traditional LED light communication methods suffer from inefficient data transmission due to memory cache exhaustion caused by modulation techniques that switch between on and off states.
Innovation Solution
A pulsed light communication system using transmission and indicator LEDs, with a controller to manage network security levels through colored light wavelengths, and a managed switch to provide multiple networks with varying security levels, ensuring continuous and efficient data transmission by maintaining a constant light signal amplitude above the sensitivity threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If LED lights are modulated through a power off state during transmission cycle, then the LED can switch between on and off states for data transmission, but the memory cache becomes exhausted or saturated which slows down the communication rate
Solution Approach 1:
The patent applies the continuity of useful action principle by maintaining the LED in a continuously on state throughout the transmission cycle, eliminating the power off state. This continuous operation prevents memory cache exhaustion and saturation that occur with traditional on/off modulation, thereby maintaining high communication rates without sacrificing the ability to transmit data through LED modulation.
2Productivity
If traditional on/off modulation is used for LED communication, then data transmission can be achieved, but network security cannot be effectively differentiated and visual indication of security levels is not provided
Solution Approach 1:
The patent applies the local quality principle by assigning different visual characteristics (colors and blinking patterns) to different network security levels. Each network level is locally differentiated through specific LED behavior: secure networks display steady or slowly blinking lights in specific colors, while unauthorized access attempts trigger rapid blinking or color changes. This allows simultaneous data transmission and effective security differentiation.
Solution Approach 2:
The patent utilizes color changes to provide visual indication of network security levels. Different network levels are represented by different colors (e.g., green for secure access, yellow for restricted access, red for unauthorized attempts). The LED controller changes colors based on the detected network level, providing intuitive visual feedback to users about the security status of the network connection while maintaining continuous data transmission capability.
3Adaptability or versatility
If multiple networks with different security levels are provided, then user access flexibility is improved, but device complexity increases due to need for multiple LED indicators and control logic
Solution Approach 1:
The patent applies the universality principle by using a single LED indicator that can perform multiple functions: displaying different colors to indicate various network security levels, providing visual feedback for authentication status, and enabling user guidance for network selection. This multi-functional approach eliminates the need for separate indicators for each network level, reducing device complexity while maintaining versatile multi-network access capability.
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 enhances network security by visually indicating access levels and preventing unauthorized access, while improving data transmission speed by eliminating the off state in the duty cycle, thus reducing memory cache saturation and maintaining continuous communication.
Implementation Method 1
communication and/or data transfer as embedded within pulsed light emitting diode (LED) light transmissions
Implementation Method 2
reception of pulsed LED light carrier signals
Data Source
AI summary
A pulsed light communication device has a plurality of indicator light emitting diodes emitting diodes emitting at least one of a plurality of wavelengths of colored light to correspond to a designated color assigned to a security level for a network. A continuous uninterrupted modulated pulsed light emitting diode light signal may be generated having a sensitivity threshold detection level exceeding minimal parameters of a photodetector.