Capacitive Sensor Power Control for Mobile Terminals
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Solution Overview
Problem
Current mobile terminals with touch screens lack intuitive power-on/off and sleep/wakeup mechanisms, resulting in a complex structure and suboptimal user experience due to the reliance on physical buttons.
Innovation Solution
Implementing a sensor-based system that triggers digital signals corresponding to preset rules (long press, click, or double-click) to perform operations like power-on/off, sleep, and waking up the device, eliminating the need for physical buttons and simplifying the terminal's structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an entity power button is used to power on/off the mobile terminal, then the power management function is reliable, but the structure of the mobile terminal becomes complex
Solution Approach 1:
The patent replaces the mechanical power button with a capacitive touch sensor that detects touch operations through electrical field changes. The sensor detects touch actions (single tap, double tap, long press) and converts them into digital signals for power management, eliminating the need for physical mechanical buttons while maintaining reliable power control functionality.
2Speed
If physical buttons are used for power-on/off and sleep/wakeup operations, then the operation response is fast, but the appearance design is limited and structure is complex
Solution Approach 1:
The capacitive touch sensor serves multiple functions: it acts as both a power button (detecting single tap for power-on, double tap for power-off) and a sleep/wakeup button (detecting long press for sleep, touch for wakeup). This multi-functional design eliminates the need for separate physical buttons for different operations, simplifying the overall structure while maintaining fast operation response.
3Reliability
If an entity power button is used for power management, then the power control function is stable, but the user experience is not optimized
Solution Approach 1:
The patent changes the detection parameter from mechanical pressure (physical button) to capacitive electrical field changes (touch sensor). The system detects different touch patterns (single tap duration, double tap sequence, long press duration) and converts them into appropriate power control commands, providing smoother and more intuitive user experience while maintaining stable power control through the PMU.
Data Source
AI summary
A method for operating a mobile terminal based on a sensor is disclosed. The method includes: a sensor is triggered according to a preset trigger rule to make the sensor output a digital signal corresponding to the trigger rule; after receiving the digital signal which is corresponding to the trigger rule and is output from the sensor, ab operation type, which is corresponding to the digital signal, of the mobile terminal is determined; and a corresponding operation process is performed on the mobile terminal according to the operation type. The disclosure also provides a corresponding device and a mobile terminal including the device. The method for operating the mobile terminal based on the sensor provided in the disclosure completes power-on/off, wakeup, sleep and other operations on the mobile terminal through the sensor, so as to bring better use experience to a user while making the structure of the mobile terminal simpler.