Communication Device Standby Power Management via Port Detection
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Solution Overview
Problem
Existing communication devices face challenges in reducing power consumption while maintaining network communication functionality, particularly in standby states where network communication is enabled.
Innovation Solution
A communication device operates in two standby states: one where the main control unit stops most operations and only detects access to a specific port, and another where it can execute operations based on control data, allowing for quick startup and reduced power consumption by limiting functions and processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network communication function is enabled in standby state, then the communication capability is maintained, but the power consumption increases
Solution Approach 1:
The patent segments the standby state into multiple levels: a first standby state where only essential communication functions are active, and a second standby state where additional processing functions are activated. This segmentation allows the system to maintain communication capability while minimizing power consumption by only activating necessary components.
Solution Approach 2:
The system dynamically transitions between different standby states based on communication needs. The communication unit can wake up the main control unit from the first standby state to the second standby state when specific port access is detected, allowing adaptive power management that balances communication reliability with energy efficiency.
2Use of energy by moving object
If the main control unit stops operations in standby state, then the power consumption is reduced, but the response time increases
Solution Approach 1:
The communication unit performs preliminary actions by detecting access to specific ports even when the main control unit is in the first standby state. This allows the system to prepare for wake-up in advance, reducing the actual response time when full operations need to be activated, while still maintaining low power consumption during idle periods.
3Adaptability or versatility
If the communication unit processes all control data, then the communication functionality is complete, but the power consumption increases
Solution Approach 1:
The patent extracts only the essential communication detection function from the main control unit and assigns it to the communication unit. The communication unit is configured to detect only access to specific ports designated for the communication device, removing unnecessary processing functions and reducing power consumption while maintaining essential communication functionality.
Data Source
AI summary
A communication device includes: a communication unit which receives control data; and a main control unit which controls an operation of the communication device, based on the control data received by the communication unit. The communication device operates in a first standby state where the main control unit stops at least a part of operations and where the communication unit detects only an access to a specific port that designates the communication device as a destination, and in a second standby state where the main control unit can execute the operations and controls the operation of the communication device, based on the control data. The communication unit wakes up the main control unit if an access to the specific port is detected in the first standby state.