Motion-Activated Remote Controller Sleep Control for Battery Saving
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Solution Overview
Problem
Existing remote controllers with radio wave transceivers continue to consume power even when not in use, leading to battery drain and potential unusability when the battery runs out.
Innovation Solution
Incorporating a motion sensing circuit and a wireless communication circuit that switches from a sleep state to a working state only when a specific motion compliant with preset reference motions is detected, thereby activating the wireless communication circuit only when intended use is initiated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the radio wave transceiver continues to be active when not in use, then the remote controller can respond immediately when needed, but the battery power is consumed continuously leading to shorter operational life
Solution Approach 1:
The radio wave transceiver operates in periodic cycles, alternating between sleep state (low power consumption) and working state (high power consumption). The motion sensing circuit periodically detects user actions, and only when a valid motion is detected does the transceiver activate to communicate with the controlled device. This periodic activation pattern resolves the contradiction by minimizing energy consumption while maintaining responsiveness to genuine user commands.
Solution Approach 2:
The motion sensing circuit performs preliminary detection of user actions before activating the radio wave transceiver. By detecting motions such as shaking or clicking the remote controller beforehand, the system can prepare for upcoming communication needs, allowing the transceiver to activate only when truly necessary rather than remaining continuously active.
2Ease of operation
If the wireless communication circuit switches to working state on any motion, then the remote controller is easy to operate, but false activations occur leading to unintended operations
Solution Approach 1:
Different regions or types of motion are assigned different functions. The motion sensing circuit is configured to recognize specific motion patterns (such as shaking in a particular direction or double-clicking) as valid activation commands, while ignoring other motions. This selective response to different motion qualities ensures that only intended operations trigger communication, preventing false activations while maintaining ease of use for legitimate commands.
Solution Approach 2:
The system uses multiple parameters to define valid activation motions, including motion direction, acceleration magnitude, duration, and sequence. By setting specific threshold values and pattern requirements, the remote controller can distinguish between intentional user actions and accidental movements, thereby improving activation accuracy without compromising operational convenience for valid commands.
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 solution effectively conserves power by ensuring the wireless communication circuit is only active when the remote controller is being used, reducing unnecessary battery consumption and extending the device's operational life.
Implementation Method 1
a motion sensing circuit and a wireless communication circuit. The motion sensing circuit determines whether or not a motion of the remote controller complies with one of a plurality of reference motions
Implementation Method 2
The radio wave transceiver of the remote controller sends a radio wave to the radio wave transceiver of the consumer electronic
Data Source
AI summary
A remote controller is provided. The remote controller includes a motion sensing circuit and a wireless communication circuit electrically connected to the motion sensing circuit. The motion sensing circuit determines whether or not a motion of the remote controller complies with one of multiple reference motions. When the motion of the remote controller complies with one of the reference motions, the wireless communication circuit is switched from a sleep state to a working state. The wireless communication circuit that is in the working state determines whether or not a received signal strength indication between the remote controller and a controlled device is greater than or equal to a strength threshold. When the received signal strength indication is less than the strength threshold, the wireless communication circuit is switched from the working state to the sleep state.