Optical Power Supply Control for Data-Driven Activation
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Solution Overview
Problem
In existing optical power supply systems, slave units consume power at a constant cycle regardless of data transmission and reception, leading to power shortages during periods of inactivity.
Innovation Solution
An optical power supply system with a power receiving side apparatus that includes a power storage unit, control information detection unit, and power supply control unit to manage power distribution based on data transmission and reception control information, ensuring power is only supplied when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If slave units are activated at a constant cycle to receive downlink communication signals, then communication reliability is improved, but power consumption increases and may lead to power shortage
Solution Approach 1:
The slave units dynamically adjust their activation timing based on whether uplink data needs to be transmitted. When uplink data is present, the slave unit activates at the predetermined timing to transmit data and receive downlink signals. When no uplink data is present, the slave unit remains inactive and skips activation, thereby reducing power consumption while maintaining communication reliability when needed.
2Productivity
If slave units are activated at a constant cycle, then data reception capability is maintained, but unnecessary power consumption occurs during periods of inactivity
Solution Approach 1:
Instead of continuous periodic activation, the system uses conditional periodic activation where slave units activate only at predetermined timings when uplink data transmission is required. This transforms the activation pattern from fixed periodic to event-driven periodic, eliminating unnecessary power consumption during periods when no data transmission or reception is needed.
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 unnecessary power consumption and efficiently uses stored power by activating components only when data transmission or reception is required, thereby avoiding power shortages.
Implementation Method 1
an optical power supply unit (12) configured to transmit an optical signal for power supply
Implementation Method 2
a power storage unit (23) configured to store power obtained from the optical signal for power supply
Data Source
AI summary
A power supply side optical communication apparatus supplies power to a power receiving side optical communication apparatus using an optical signal. A power storage unit stores the supplied power. A data control unit superimposes data control information related to transmission/reception of data transmitted/received by a data transmission/reception unit on the optical signal for power supply. A control information detection unit detects the data control information superimposed on the optical signal for power supply. A power supply control unit detects presence of transmission and reception of the data in an optical transmission/reception unit and an external transmission/reception unit on the basis of the data control information and data stored in a data storage unit, and supplies the power to the optical transmission/reception unit or the external transmission/reception unit according to the detected presence or absence of transmission and reception of the data.