Free-Space Optical Communication Section Scaling for Power Control
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Solution Overview
Problem
Free space optical communication devices with multiple transmitting/receiving units for spatial multiplex transmission face high power consumption issues.
Innovation Solution
A free space optical communication device and system that includes a plurality of light transmitting/receiving sections and a processor to determine the required communication capacity and control the number of sections used based on this capacity, thereby optimizing power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple light transmitting/receiving sections are used for spatial multiplex transmission, then communication capacity is improved, but power consumption increases
Solution Approach 1:
The patent applies dynamics by making the number of active light transmitting/receiving sections variable rather than fixed. The communication control section dynamically adjusts the number of sections based on real-time communication capacity requirements, allowing the system to adapt between high-capacity multi-section operation and low-power single-section operation as needed
Solution Approach 2:
The patent changes the operational parameter of the number of active transmitting/receiving sections based on communication capacity requirements. When high communication capacity is needed, more sections are activated; when lower capacity suffices, fewer sections remain active, thereby optimizing the balance between productivity and energy consumption
2Use of energy by moving object
If the number of light transmitting/receiving sections is reduced to save power, then power consumption is improved, but communication capacity decreases
Solution Approach 1:
The patent implements feedback through the communication control section that monitors communication capacity requirements and adjusts the number of active sections accordingly. This closed-loop control ensures that the system maintains sufficient communication capacity while minimizing power consumption by activating only the necessary number of sections
Data Source
AI summary
A free space optical communication device includes: a plurality of light transmitting/receiving sections; and at least one processor configured to execute: a communication control process of controlling communication which is to be carried out via the plurality of light transmitting/receiving sections, in the communication control process, the at least one processor (a) determining a required communication capacity for the communication and (b) controlling, on the basis of the required communication capacity, the number of light transmitting/receiving sections to be used for the communication.