Multicolor Optical Communication With Adaptive Color and Path Control
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Solution Overview
Problem
Optical communication systems lack effective methods to improve throughput by controlling the use of colors for communication between terminal apparatuses and a base station apparatus, especially in dynamic environments where apparatuses are not fixed and facing each other.
Innovation Solution
An optical communication system using visible light that employs a time division duplex scheme to assign identical colors for both uplink and downlink communication, with a controller estimating propagation paths based on received signals to control light emitting elements for optimal transmission, and utilizing a distributed arrangement of light receiving and emitting units to enhance throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If optical communication apparatuses are fixed and facing each other for one-to-one communication, then communication reliability is improved, but adaptability to dynamic environments deteriorates
Solution Approach 1:
The patent applies the dynamics principle by enabling optical communication apparatuses to move and change their communication partners dynamically. The system supports multi-color optical communication where apparatuses can switch between different colors (wavelengths) and communicate with multiple partners simultaneously, transforming the static one-to-one fixed communication model into a dynamic multi-color multi-partner communication model that adapts to changing environmental conditions
Solution Approach 2:
The patent applies the universality principle by creating a multi-functional optical communication system that can handle multiple communication tasks simultaneously. The apparatuses are equipped with multiple light emitting and receiving elements supporting multiple colors, enabling them to perform one-to-many communications, establish multiple communication links, and adapt to various communication scenarios beyond the traditional fixed one-to-one model
2Productivity
If multiple colors are used for optical communication, then throughput is improved, but control complexity deteriorates
Solution Approach 1:
The patent applies the segmentation principle by dividing the optical communication system into independent color channels. Each color (wavelength) operates as a separate communication channel with its own light emitting and receiving elements. This segmentation allows the system to manage multiple colors independently, simplifying the control complexity while maintaining high throughput through parallel multi-color communications
Solution Approach 2:
The patent applies the local quality principle by assigning specific colors to specific spatial regions or communication directions. Different light emitting and receiving elements are configured with different color characteristics optimized for their local positions and communication partners. This localized optimization enables efficient multi-color communication while reducing overall system control complexity through distributed color assignment
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
The system achieves improved throughput by adaptively selecting colors and optimizing propagation paths, enabling efficient optical communication in dynamic conditions such as underwater environments.
Implementation Method 1
an optical communicator including a plurality of light receiving elements and a plurality of light emitting elements
Implementation Method 2
a plurality of light receiving elements and a plurality of light emitting elements supporting the optical communication of a plurality of colors
Data Source
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AI summary
An optical communication apparatus that performs optical communication that is wireless communication using light includes an optical communicator including a plurality of light receiving elements and a plurality of light emitting elements and supporting the optical communication of a plurality of colors and a controller configured to control the optical communicator to perform reception of an optical signal from another optical communication apparatus and transmission of an optical signal to the other optical communication apparatus by using an identical color selected from among the plurality of colors or a pair of colors having continuous wavelengths.