Standby Power Elimination via Wireless Activation Signal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electrically powered appliances in standby mode continue to consume energy due to the constant power supply needed for reception circuits to detect remote control commands, which is not efficiently addressed by current technologies, leading to significant global energy consumption.
Innovation Solution
A system that powers the reception circuit and commutation circuit solely from the activation signal emitted by the remote control, using a microwave signal in the 2.4 GHz to 2.49 GHz frequency band, with a power supply signal that is significantly stronger than the identification signal, allowing for efficient energy recovery and minimal power consumption during standby mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the reception circuit is constantly powered to detect remote control commands, then the appliance can be activated from standby mode, but energy consumption in standby mode increases
Solution Approach 1:
The patent extracts the power supply function from the constantly powered reception circuit by introducing a separate wireless power transmission system. The reception circuit is completely powered down during standby, and only activated when receiving wireless power and commands, thereby eliminating standby power consumption while maintaining remote activation capability.
Solution Approach 2:
The system performs preliminary action by transmitting both power and activation commands wirelessly before the appliance needs to be activated. The wireless power transmission prepares the reception circuit by providing power in advance, enabling the circuit to then process the activation command without requiring continuous power during standby.
2Use of energy by moving object
If the activation signal duration is extended to recover sufficient energy, then the reception circuit can be powered, but the user experience deteriorates due to long response time
Solution Approach 1:
The patent changes the power parameter of the activation signal by using a significantly stronger power supply signal (at least 10 times, preferably 100 times stronger than the identification signal). This high power density enables sufficient energy recovery in a short time frame, achieving both adequate power transfer and acceptable user response time.
Solution Approach 2:
The system uses periodic pulsed signals for wireless power and command transmission. The activation signal is transmitted in controlled pulses with optimized duration, allowing the reception circuit to accumulate sufficient energy quickly while maintaining short overall activation time for good user experience.
3Productivity
If a stronger power supply signal is used, then energy recovery efficiency increases, but the signal power ratio between power supply and identification signal must be precisely controlled
Solution Approach 1:
The patent applies partial action by using excessive power in the power supply signal (at least 10 times, preferably 100 times stronger than the identification signal). This deliberate power imbalance simplifies the control system, as the receiver can easily distinguish and separate the strong power signal from the weaker identification signal, reducing the precision requirements for power control.
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 energy consumption in standby mode to near zero, meeting regulatory standards while maintaining user-friendly response times and range, by efficiently extracting energy from the activation signal for both the reception and commutation circuits.
Implementation Method 1
The invention thus pertains to an electronic system, as defined in the appended claims... efficiently extracting energy from the activation signal for both the reception and commutation circuits
Data Source
AI summary
This invention relates to an electronic system including a radiative electromagnetic emitter for emitting an activation signal including sequentially an energy supply signal followed by an identification signal, the power of the energy supply signal being at least ten times greater than the power of the identification signal, further including an interface connected to an energy supply source; an electric load; a circuit for deactivating a placing of electric load on standby, including: a receiver including a reception interface, a rectifier configured to generate a DC activation voltage on the basis of an activation signal, a switch configured to selectively connect/disconnect to the load from the energy supply, an identification circuit configured to extract an identifier of the activation signal and configured to apply the activation voltage as closure control signal for turning off the switch if a match of the identifier is determined.