Multifunction Time Display Device with Magnetic Sensor
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Solution Overview
Problem
Current time display devices, such as clocks, require inconvenient knob rotation to set alarm times, which is not intuitive or efficient for managing multiple time-related events.
Innovation Solution
A multifunction time display device with a main body, a moving first element (hour or minute hand), and a removably attachable second element with different functions, using sensors to trigger indication elements when the first element overlaps the second element, allowing users to intuitively set and manage various time events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a knob rotation method is used to set alarm time, then the alarm time can be set, but the operation becomes inconvenient and time-consuming
Solution Approach 1:
The patent replaces the mechanical knob rotation system with a magnetic field-based system. The first element contains a magnet that generates a magnetic field, and the second element has a magnetic sensor that detects the magnetic field strength. When the first element rotates to a specific position, the sensor detects the change in magnetic field and automatically triggers the alarm function, eliminating the need for manual knob rotation and reducing the time required to set alarm time.
Solution Approach 2:
The system enables automatic detection and triggering of alarm functions. The magnetic sensor automatically detects when the first element (with magnet) reaches the predetermined position, and automatically activates the alarm indication element without requiring user intervention. This self-service mechanism eliminates the manual operation of rotating knobs to set alarm times.
2Adaptability or versatility
If multiple time management functions are integrated, then time management capability is improved, but device complexity increases
Solution Approach 1:
The patent implements multi-functionality through a universal magnetic detection mechanism. The same magnetic field detection system (first element with magnet, second element with sensor) serves multiple time management functions including alarm setting, timer, and other time-based events. By using a single versatile magnetic detection mechanism rather than separate mechanisms for each function, the patent achieves multiple functions while controlling device complexity.
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
Enables efficient and intuitive time management by allowing users to easily set and remind themselves of multiple events through different functions, such as alarms, messages, and memos, without the need for complex knob adjustments.
Implementation Method 1
The second element may include a magnet. The main body may further include a metal plate disposed in the casing. Thus, the second element may be attached to the transparent portion of the casing via magnetism.
Implementation Method 2
In a preferred embodiment, the sensor may be a Hall sensor disposed on the first element.
Implementation Method 3
In another preferred embodiment, the sensor may be a photoresistor disposed on the second element, and further, the main body may include a luminescent plate and the first element may be a light-proof element.
Implementation Method 4
In a further preferred embodiment, the sensor may be an electromagnetic sensor including a transmitter and a receiver disposed on the first element and the second element, respectively.
Data Source
AI summary
A multifunction time display device includes a main body, a first element, a second element, and an indication element. The main body includes a casing, and the casing possesses a transparent portion. The first element moves inside the casing as time goes by. The second element is removably attached to any position of the transparent portion of the casing. The indication element is triggered when the first element moves to overlap the second element.


