Visual Light Communication Gateway with Relay Network
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Solution Overview
Problem
Current communication systems lack efficient methods to utilize visual light as a medium for carrying communications, particularly in transitioning between wired and wireless networks.
Innovation Solution
A system comprising a gateway that converts radio frequency communications into visual light signals, utilizing active and passive light relays to exchange these signals within a visual light communication network, enabling communication between wired and wireless networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If radio frequency communications are converted into visual light communication signals, then communication efficiency between wired and wireless networks is improved, but system complexity increases due to the need for conversion gateways and light relays
Solution Approach 1:
The patent introduces a gateway as an intermediary device that converts between radio frequency signals and visual light communication signals, enabling communication between different network types. The gateway acts as a mediator that translates signals from one form to another, solving the incompatibility between wired and wireless networks while maintaining communication efficiency.
Solution Approach 2:
The system is segmented into distinct functional components: a gateway for signal conversion, active light relays for signal transmission and regeneration, and passive light relays for signal distribution. This segmentation allows each component to perform its specific function efficiently, managing overall system complexity through modular design.
2Speed
If visual light communication signals are used for high-speed data transmission, then data transmission speed is improved, but reliability decreases due to potential power failures and signal interruptions
Solution Approach 1:
The patent implements battery backup systems in advance in active light relays to cushion against power failures. The batteries are prepared beforehand and automatically activate when power is interrupted, ensuring continuous operation and maintaining communication reliability without affecting the high-speed data transmission capability.
Solution Approach 2:
The system incorporates feedback mechanisms where active light relays monitor signal quality and power status, automatically adjusting transmission parameters or switching to battery power when needed. This feedback loop maintains reliable communication by detecting and responding to potential failures in real-time.
3Area of stationary object
If active light relays are deployed to extend network coverage, then network coverage area is improved, but energy consumption increases due to the need for continuous power supply
Solution Approach 1:
The patent merges active light relays with battery backup systems into a single integrated unit. This combination allows the relay to extend network coverage using active signal transmission while the integrated battery provides continuous operation capability, achieving extended coverage without proportionally increasing energy consumption concerns.
Solution Approach 2:
The system dynamically changes operational parameters of active light relays based on available power sources. When mains power is available, relays operate at full capability for maximum coverage. When switching to battery power, parameters such as transmission power or operational mode may be adjusted to extend battery life while maintaining essential coverage.
4Reliability
If modulation techniques are used to make visual light signals imperceptible to the human eye, then communication quality is improved, but measurement precision becomes more difficult due to high-frequency modulation detection
Solution Approach 1:
The patent employs periodic modulation techniques where visual light signals are modulated at frequencies above human perception thresholds. The periodic nature of this high-frequency modulation enables reliable communication by encoding data in a pattern that is imperceptible to humans while remaining detectable and measurable by specialized photodetectors and receivers designed to capture these rapid variations.
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 seamless communication between wired and wireless networks using visual light, providing differentiated quality of service and ensuring reliable data transmission through modulation techniques that are imperceptible to the human eye or visible, with active relays capable of powering through battery backup in case of power failures.
Implementation Method 1
converting the received radio frequency communication signals into visual light communication signals and transmitting the visual light communication signals
Data Source
AI summary
Systems and methods for visual light communication are provided. The system can include a gateway arranged to convert radio frequency communications into visual light communication signals and an active light relay arranged to exchange visual light communication signals with the gateway. The system also includes a passive light relay arranged to exchange visual light communication signals with the active light relay and a communication device arranged to exchange visual light communication signals with one of the active light relay of the passive light relay.