Analogue Two-Hand Electronic Timepiece with Automatic Battery-End Display
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Solution Overview
Problem
Electronic timepieces with two hands face challenges in indicating battery end-of-life and lack flexibility in hand operation, with existing solutions consuming excessive power or requiring manual mode switching.
Innovation Solution
An electronic timepiece with two hands that switches automatically between normal and battery end-of-life display modes, using independent motors and a control circuit to detect battery life and adjust hand operation accordingly, allowing flexible information display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a luminous element is used to indicate end of battery life, then the end of battery life can be indicated, but the power consumption increases significantly
Solution Approach 1:
The existing hour and minute hands are made multi-functional by programming them to display different information based on operational mode. In normal mode, they show time; in alarm mode, they show alarm time. This eliminates the need for separate indicator hands or luminous elements, reducing power consumption while maintaining reliability of information display
Solution Approach 2:
The timepiece uses its own existing display mechanism (the two hands) to indicate alarm time instead of requiring a separate dedicated indicator. The system repurposes its normal operational components for dual functionality, avoiding additional power-consuming indicators
2Adaptability or versatility
If multiple hands are added to display different functions, then more information can be displayed, but the device complexity increases
Solution Approach 1:
The two hands are programmed to perform multiple functions: in normal operational mode, they display current time; in alarm operational mode, they display alarm time. The control unit switches between modes based on received signals, allowing one pair of hands to convey multiple types of information without adding physical components
Solution Approach 2:
The function of the hands changes dynamically based on the operational mode. The control unit can switch the hands between displaying time information and alarm information, making the display system adaptable and versatile without requiring additional static hands for each function
3Adaptability or versatility
If manual switching between operational modes is implemented, then different information can be displayed, but the ease of operation decreases
Solution Approach 1:
The timepiece automatically switches between normal and alarm operational modes based on received signals from the external device. The system monitors for specific signal patterns and autonomously transitions modes without requiring user intervention, making operation simpler while maintaining versatility
Solution Approach 2:
The control unit continuously monitors for incoming signals and automatically triggers mode switching when the predetermined signal pattern is detected. This feedback mechanism allows the system to adapt its display function based on external inputs, eliminating the need for manual mode selection
Data Source
Figure 1
AI summary
The present invention relates to a two-hand electronic timepiece with an analog display (1). The timepiece comprises an hour hand (9) and a minute hand (11), the hour hand (9) and the minute hand (11) being arranged to operate independently of each other. The hour hand (9) and the minute hand (11) are arranged to operate according to a first mode of operation and a second mode of operation, which is arranged to be activated by the timepiece (1) upon detecting an event. According to the second mode of operation, the hour hand (9) and the minute hand (11) are arranged to operate differently compared to their operation according to the first mode of operation.