Optical Communication Receiver Segmentation Against Disturbance Light
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Solution Overview
Problem
Conventional optical communication devices suffer from damage and interference due to high-intensity disturbance light, such as sunlight, saturating light-receiving elements and affecting adjacent elements, leading to disrupted communication.
Innovation Solution
An optical communication device with a controller that individually controls the output of light-receiving elements, invalidating high-intensity light inputs to prevent damage and maintain communication by adjusting the gain of electronic multipliers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If light-receiving elements are used to receive communication light underwater, then optical communication can be performed, but the light-receiving elements may receive high-intensity disturbance light (sunlight) causing saturation and damage
Solution Approach 1:
The light-receiving unit is divided into multiple independent light-receiving elements (first, second, third, and fourth elements). Each element can be independently controlled and invalidated when receiving high-intensity disturbance light, allowing other elements to continue communication functions. This segmentation isolates the impact of disturbance light to specific elements rather than affecting the entire communication system.
Solution Approach 2:
The controller dynamically changes the operational parameters of light-receiving elements by switching between valid and invalid states based on received light intensity. When disturbance light exceeds a threshold, the controller invalidates the affected light-receiving element, adjusting its parameter state to prevent saturation and damage while maintaining communication through other elements.
2Reliability
If a single light-receiving element receives high-intensity disturbance light, then the output saturates, but this affects optical communication by other light-receiving elements
Solution Approach 1:
The light-receiving unit is divided into multiple independent light-receiving elements (first, second, third, and fourth elements). Each element can be independently controlled and invalidated when receiving high-intensity disturbance light, allowing other elements to continue communication functions. This segmentation isolates the impact of disturbance light to specific elements rather than affecting the entire communication system.
Solution Approach 2:
The controller continuously monitors the output signals from each light-receiving element and provides feedback control. When a light-receiving element detects high-intensity disturbance light causing saturation, the controller receives feedback about this condition and automatically invalidates the affected element, preventing signal interference and maintaining communication through other elements.
3Strength
If light-receiving elements are exposed to high-intensity disturbance light, then the elements may be damaged, but preventing damage requires controlling individual element output
Solution Approach 1:
The light-receiving unit is divided into multiple independent light-receiving elements (first, second, third, and fourth elements). Each element can be independently controlled and invalidated when receiving high-intensity disturbance light, allowing other elements to continue communication functions. This segmentation isolates the impact of disturbance light to specific elements rather than affecting the entire communication system.
Solution Approach 2:
Each light-receiving element is equipped with independent control capability through the controller, which can individually invalidate specific elements based on their own received light intensity conditions. The system uses self-service monitoring where each element's output is independently evaluated and protected without requiring external intervention, simplifying the overall control architecture while enhancing durability.
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
Prevents damage to light-receiving elements from high-intensity disturbance light and maintains normal communication by controlling output, ensuring reliable operation even in high-disturbance environments.
Implementation Method 1
Each of the first optical communication instrument and the second optical communication instrument is provided with one or a plurality of light-receiving elements inside a housing
Implementation Method 2
the gain of electronic multipliers
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
This optical communication device (1) is provided with: a plurality of light-receiving elements (11) configured to receive communication light, the plurality of light-receiving elements being provided so as to correspond to a plurality of channels; and a controller (15) configured to perform control to invalidate output from a light-receiving element that has received high-intensity light higher in light intensity than a predetermined value among the plurality of light-receiving elements.