Standby Power Circuit Using Proximity Detection for Full Shutdown
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Solution Overview
Problem
Many electronic appliances do not completely turn off when switched off, entering a standby mode that continues to draw power, leading to significant cumulative energy consumption across large areas.
Innovation Solution
A standby circuit with a power regulator, power detecting circuit, and integrated circuit module that determines the operating mode based on proximity to a remote control, allowing for complete shutdown when not in use, using proximity detection and power detection to manage power flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the appliance enters standby mode to detect and respond to remote control signals, then the appliance can be remotely controlled, but the appliance continues to draw power (1-3 Watts) even when turned off
Solution Approach 1:
The patent extracts the power detection function from the appliance itself and places it in a separate circuit breaker device. This allows the appliance to be completely powered off while the circuit breaker monitors power consumption and detects remote control signals independently, eliminating the need for the appliance to draw power in standby mode.
Solution Approach 2:
The circuit breaker device acts as an intermediary between the power source and the appliance. It intercepts and analyzes power consumption patterns to detect appliance state changes and remote control signals, allowing remote operation without requiring the appliance to remain powered in standby mode.
2Loss of energy
If the appliance is completely turned off to eliminate standby power consumption, then energy savings are achieved, but the appliance cannot detect or respond to remote control signals
Solution Approach 1:
The circuit breaker device monitors its own power consumption patterns to detect when the appliance is in standby mode versus fully on. By analyzing the unique electrical signature of standby power draw, the system can identify appliance state without the appliance needing to send any signals, enabling automatic appropriate response to remote commands.
Solution Approach 2:
The system performs preliminary power consumption analysis to establish a baseline of the appliance's operational states before a remote control signal is received. This allows the circuit breaker to predict the appliance's response to incoming signals and pre-condition the power delivery accordingly, enabling remote control of completely powered-off appliances.
3Reliability
If the appliance remains in standby mode to ensure immediate response to remote commands, then remote control reliability is maintained, but cumulative energy consumption across multiple devices becomes significant
Solution Approach 1:
The system continuously monitors power consumption patterns and uses this feedback to determine the appliance's actual state. When the appliance is in standby mode, the circuit breaker detects the characteristic low-power signature and adjusts its response to remote signals accordingly, enabling reliable remote control without requiring the appliance to maintain continuous standby power draw.
Data Source
AI summary
A standby circuit includes a power regulator configured to operate in an ON state and an OFF state; a power detecting circuit configured to detect power of a load; an integrated circuit module including two interfaces, each of the two interfaces configured to receive an ON operating command or an OFF operating command from a remote control device; and a proximity detection circuit configured to determine a proximity of each of the two interfaces to the remote control device.