Hybrid Smart Watch Combining Mechanical Backup With Digital Precision
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Smart watches face power constraints due to their wearable form factor, leading to limited battery life and inability to display time when power is depleted, while mechanical watches lack precision adjustment to network time.
Innovation Solution
A hybrid smart watch combining a smart watch and a conventional mechanical movement with separate power sources and displays, allowing the analog dial to indicate time mechanically and the digital display to show time electronically, with energy harvesting to augment power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a smart watch uses battery power for electronic time display, then time display precision and functionality are improved, but power consumption increases and battery life is limited
Solution Approach 1:
The time display function is segmented into two independent systems: an electronic timekeeping system for precision and a separate mechanical movement system for power-independent operation. Each system operates autonomously with its own power source, allowing the electronic system to provide precise time display when powered while the mechanical system ensures continuous time indication regardless of battery status.
2Device complexity
If a smart watch uses a single battery power source, then device simplicity is maintained, but operational duration is limited by battery capacity
Solution Approach 1:
Two independent power sources are merged into a single hybrid power architecture: a rechargeable lithium-ion battery for the electronic system and a separate mechanical movement with its own power reserve. This combination allows the watch to draw power from either source depending on operational needs, dramatically extending operational duration beyond what a single battery could provide.
3Reliability
If a mechanical movement is used for time indication, then power independence is achieved, but automatic time adjustment to network time is not possible
Solution Approach 1:
The electronic timekeeping system acts as an intermediary between the mechanical movement and network time sources. It receives precise time data from network services via wireless communication and automatically adjusts the mechanical movement's time indication accordingly, enabling automatic time synchronization while preserving the mechanical system's power independence.
4Ease of operation
If the display is constantly switched on for full functionality, then user experience is improved, but power consumption increases significantly
Solution Approach 1:
The electronic display operates periodically rather than continuously, switching on only when needed for user interaction or information display, while the mechanical movement provides continuous time indication. This periodic operation dramatically reduces display power consumption while maintaining full functionality when the user needs to access the device.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A hybrid wearable device comprising (A) a smart watch with at least a digital display, a general-purpose processor, an instruction and data memory, and a communications component, and (B) an alternate (mechanical, quartz, kinetic, or other) watch movement, that has these two components interact with each other and with the user.