Touch Screen Terminal Anti-Theft Alarm Method
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Solution Overview
Problem
Existing anti-theft methods for touch screen terminals, such as smartphones and tablets, are ineffective due to poor applicability, leading to failure in preventing theft as alarms often do not function properly.
Innovation Solution
A touch screen terminal and alarm method that detects touch events to trigger alarms, utilizing existing hardware resources without additional circuits, entering a sleep mode to conserve power and using a pre-defined delay to prevent false alarms, with alarms activated through sound, vibration, or messages if an incorrect password is entered.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal uses traditional anti-theft alarm methods, then the alarm function is provided, but the applicability is poor and the alarm fails to work effectively
Solution Approach 1:
The patent applies universality by making the touch screen serve multiple functions: it acts as both the display interface and the theft detection sensor. When a theft event occurs, the touch screen detects the touch input that attempts to unlock the device and triggers the alarm function, eliminating the need for separate detection hardware and improving applicability across different terminal types.
Solution Approach 2:
The terminal uses its own existing touch screen hardware to detect theft events, rather than requiring external sensors or additional components. The touch screen naturally receives touch inputs during normal operation, and the system repurposes this existing capability for security monitoring, making the solution self-sufficient and highly adaptable.
2Use of energy by moving object
If the terminal enters sleep mode to save power, then energy consumption is reduced, but the touch screen cannot detect touch events
Solution Approach 1:
The terminal operates in periodic cycles, alternating between sleep mode (to save power) and active monitoring mode (to detect theft). The system enters sleep mode during normal operation and only activates the touch screen for detection when a theft event is suspected, such as when an incorrect password is entered multiple times, thus balancing power consumption with detection capability.
3Speed
If the alarm is triggered immediately upon detecting a touch event, then the alarm responds quickly, but false alarms occur
Solution Approach 1:
The system performs preliminary verification before triggering the alarm. When a touch event is detected, the system first checks whether it corresponds to an incorrect password entry or unauthorized unlock attempt. Only after confirming the malicious nature of the touch event does the system activate the alarm, preventing false alarms while maintaining quick response to genuine threats.
Data Source
AI summary
A touch screen terminal and an alarm method thereof are provided. The method includes that: a terminal detects whether the touch screen receives a touch event; if so, the terminal sends an alarm. The solution solves the problem that due to the poor applicability of an anti-theft alarm method, alarm fails to really work, eventually the terminal is stolen. The solution provides a more reliable anti-theft method of high practicability, thereby enhancing system performance and improving user experience.