Keyboard Fatigue Detection via Input Pattern Analysis
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Solution Overview
Problem
Users experience increased myopia and fatigue when using electronic devices for extended periods, and accidental keyboard inputs can occur due to drowsiness, leading to unintended document modifications.
Innovation Solution
An electronic device equipped with a keyboard, key detection circuit, processing circuit, and display screen that detects key pressing states and user behavior to determine fatigue, sending reminders to take breaks or adjust device usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If users use electronic devices for extended periods, then productivity increases, but user fatigue and myopia risk increase
Solution Approach 1:
The system continuously monitors keyboard input patterns and provides feedback through fatigue level detection and reminder notifications. The control circuit analyzes pressing state data in real-time and sends reminder signals when fatigue is detected, creating a closed-loop system that adjusts user behavior based on detected states.
Solution Approach 2:
The system performs preliminary detection of fatigue states before accidental inputs occur. By monitoring keyboard pressing patterns and detecting abnormal input behaviors (such as prolonged pressing or repeated pressing), the system can issue reminders in advance to prevent document modifications caused by drowsiness.
2Productivity
If users use electronic devices for extended periods, then work output increases, but accidental keyboard inputs occur due to drowsiness
Solution Approach 1:
The system implements continuous feedback by monitoring keyboard input patterns and comparing them against normal usage patterns. When abnormal patterns indicating drowsiness are detected (such as prolonged key presses or repeated presses), the system provides feedback through reminder notifications to alert users and prevent accidental inputs.
Solution Approach 2:
The control circuit acts as an intermediary between the keyboard detection circuit and the display system. It analyzes the raw pressing state data, determines fatigue levels, and mediates by issuing reminder signals before accidental inputs can occur, thus protecting against reliability issues.
3Measurement precision
If the system monitors keyboard pressing states continuously, then fatigue detection accuracy improves, but device complexity increases
Solution Approach 1:
The keyboard structure serves dual purposes: it functions as both the input device and the detection sensor. The key detection circuit leverages the existing keyboard infrastructure to collect pressing state data, eliminating the need for separate sensing mechanisms and reducing overall system complexity while maintaining detection accuracy.
Solution Approach 2:
The keyboard system performs multiple functions simultaneously: it serves as the user input interface, the fatigue detection sensor, and the data collection mechanism. This multi-functionality reduces the need for additional components and simplifies the overall system architecture while enabling continuous monitoring.
Data Source
AI summary
An electronic device with a fatigue detection function is provided and includes a keyboard, a key detection circuit, a first processing circuit, a control circuit, and a display screen. The keyboard includes at least one key. The key detection circuit detects the pressing state of the key to generate a first detection signal. The first processing circuit converts the first detection signal to a first processing signal. The control circuit determines whether a specific event occurs according to the first processing signal. In response to the specific event, the control circuit sends a reminder signal. The display screen displays a reminder image according to the reminder signal.