Optical Module Power Adjustment for Energy Saving
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Solution Overview
Problem
Optical communication devices face challenges in reducing power consumption without compromising real-time communication efficiency, as shutting down the optical module to conserve power leads to delayed reconnection and affected communication timeliness.
Innovation Solution
The method involves adjusting the transmit optical power of an optical communication device based on received information about the receive optical power and minimum receive optical power at a peer end, ensuring that the power is reduced while maintaining real-time communication by calculating a difference value that includes a margin for reliability and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If the optical module is shut down to reduce power consumption, then power consumption is reduced, but communication real time is affected due to delayed reconnection
Solution Approach 1:
The patent applies dynamics by making the optical module's working state adjustable rather than fixed. The system dynamically switches between different working states (normal operation and low-power state) based on communication needs, allowing the module to remain operational during active communication and enter low-power state during idle periods, thus resolving the contradiction between power consumption and communication real-time performance
Solution Approach 2:
The patent changes the operational parameters of the optical module by introducing a low-power working state with reduced transmit optical power. Instead of completely shutting down the module, the system adjusts the power parameter to a lower level that maintains basic functionality while reducing energy consumption, thereby avoiding the reconnection delay issue associated with complete shutdown
2Reliability
If the optical module operates at high transmit optical power to ensure communication reliability, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements feedback by having the receiving end detect the actual receive optical power and feed this information back to the transmitting end. Based on this feedback, the system adjusts the transmit optical power to the minimum necessary level to maintain reliable communication, avoiding both excessive power consumption and insufficient power that would compromise reliability
Solution Approach 2:
The system dynamically adjusts the transmit optical power parameter based on real-time communication conditions and feedback information. The optical power is continuously optimized to maintain the minimum required for reliable communication while minimizing power consumption, rather than operating at a fixed high power level
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 approach reduces power consumption of optical communication devices while ensuring real-time operation and improving communication efficiency by dynamically adjusting transmit optical power without shutting down the optical module.
Implementation Method 1
drive a semiconductor laser device (LD) or a light-emitting diode (LED) to transmit modulated optical signals
Implementation Method 2
convert, through an optical detection diode, optical signals input at a certain code rate into electric signals
Data Source
AI summary
Embodiments of the present invention disclose a method, a device, and a system for saving energy in optical communication. The method includes the following: sending first information to an optical communication device at a peer end through the optical module by using a first transmit optical power; receiving, through the optical module, second information that is returned by the optical communication device at the peer end after it receives the first information; and reducing, according to the first transmit optical power, and a receive optical power value and minimum receive optical power value in the received second information, the transmit optical power value of the optical module of the optical communication device to a difference value between the first transmit optical power value and the receive optical power value plus the minimum receive optical power value of the optical communication device at the peer end and a margin value.