Portable Device Gesture Activation Power Management
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Solution Overview
Problem
Mobile devices with touch screens can inadvertently turn on when pressed accidentally, leading to unnecessary power consumption and battery depletion when not intentionally activated by the user.
Innovation Solution
A portable device comprising a power module, a processing module, a sensing module, and an enabling control module, where the sensing module generates touch sensing signals and an operating system start-up signal when a preset gesture is recognized, and the enabling control module manages power paths to enable the processing module only when the correct gesture is detected, preventing unnecessary power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the device is enabled to turn on when the power button is pressed, then the device can be activated for use, but the device may inadvertently turn on when pressed accidentally, causing unnecessary power consumption
Solution Approach 1:
The sensing module is enabled before the processing module to perform preliminary gesture detection. When the power button is pressed, the sensing module first detects whether a predefined gesture is performed on the touch screen before activating the processing module, preventing accidental power-on while maintaining intentional activation capability
Solution Approach 2:
The sensing module acts as an intermediary between the power button press and the processing module activation. It mediates the power-on process by requiring gesture verification, so the processing module is only enabled after the sensing module confirms a valid gesture, thus preventing accidental activation
2Adaptability or versatility
If the sensing module is enabled to detect gestures, then the device can recognize user input, but the device consumes power during gesture detection even when not intended to be activated
Solution Approach 1:
The sensing module is enabled in advance of the processing module to perform preliminary gesture detection. This preliminary action allows the system to verify user intent before committing to full device activation, reducing unnecessary power consumption from premature processing module activation
Solution Approach 2:
Only the sensing module is enabled initially rather than the entire processing module, representing partial action. This selective activation allows gesture detection with minimal power consumption, and the processing module is only fully activated when the gesture is confirmed valid
Data Source
AI summary
A portable device and a method for enabling the portable device are disclosed. The portable device comprises a power module, a processing module, a sensing module, and an enable control module. The power module is configured to provide electric power. The processing module is configured to run an operating system to drive the portable device when the processing module itself is enabled. The sensing module is configured to sense a gesture to generate a group of touch sensing signals, and to judge whether the group of touch sensing signals conform to a group of predefined signals so as to generate an operating system enabling signal. The enable control module is configured to temporarily enable the sensing module according to a switching signal, and to enable the processing module according to the operating system enabling signal.