Wearable Power Supply with Real-Time Capacity Feedback
Solution Overview
Problem
Existing wearable power supplies for smart watches are large in size, lack real-time capacity display, and require data cables for charging, making them inconvenient and less user-friendly.
Innovation Solution
A wearable power supply with a control module, battery, first and second charge modules, communication module, and remaining capacity computation module, which includes a micro USB interface and LED power indication lights, allowing direct charging via contact pins and real-time capacity display on a connected device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a battery of larger capacity is equipped in the smart watch, then the power consumption is improved, but the size and cost increase
Solution Approach 1:
The power supply system is divided into two separate components: a small-capacity battery integrated into the smart watch and a separate wearable power supply device with larger battery capacity. This segmentation allows the watch to maintain its compact size while the external power supply provides additional energy capacity when needed.
Solution Approach 2:
A wearable power supply device serves as an intermediary between the external charging source and the smart watch battery. This intermediary device includes charging circuits, voltage regulation modules, and wireless communication interfaces, enabling it to charge the watch battery wirelessly while maintaining the watch's compact form factor.
2Use of energy by moving object
If a mobile power supply is used to charge the smart watch, then the power consumption is improved, but the size and usage complexity increase
Solution Approach 1:
The wearable power supply device is designed with multi-functionality to reduce usage complexity. It can simultaneously charge the smart watch wirelessly, display charging status and battery capacity through integrated displays, provide haptic feedback through vibration motors, and communicate with the watch through multiple protocols (Bluetooth, NFC). This consolidation of functions into a single device eliminates the need for separate charging cables, displays, and control mechanisms.
3Use of energy by moving object
If existing mobile power supplies are used, then the power consumption is improved, but the real-time capacity display is not provided
Solution Approach 1:
The wearable power supply device incorporates real-time feedback mechanisms through displays that show charging status, battery capacity percentages, and power transfer information. The device continuously monitors its own battery level and the watch's charging status, then provides visual and haptic feedback to the user. This feedback loop eliminates information loss by making real-time power supply status visible and tangible.
4Volume of moving object
If a wearable power supply is designed with smaller size, then the portability is improved, but the battery capacity is reduced
Solution Approach 1:
The wearable power supply device employs dynamic voltage regulation and power management circuits that can adjust charging parameters in real-time based on battery state, temperature, and power availability. This dynamic optimization allows the compact device to maximize charging efficiency and extract maximum capacity from its small battery, effectively compensating for the reduced physical size through intelligent power management.
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
The solution reduces the size of the power supply, enhances user experience by providing real-time capacity feedback, and simplifies charging without the need for data cables, improving convenience and precision.
Implementation Method 1
a battery; and a first charge module, a second charge module, a communication module, and a remaining capacity computation module, which are connected to the control module
Implementation Method 2
The voltage boost driver boosts an output voltage of the battery to a required rated voltage of the terminal
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A wearable power supply includes a control module, a battery; and a first charge module, a second charge module, a communication module, and a remaining capacity computation module, which are connected to the control module. The first charge module includes a driver and a first interface used to charge the battery. The driver is connected to the control module, the first interface, and the battery, respectively. The second charge module includes a voltage boost driver and a second interface used to charge a terminal. The voltage boost driver is connected to the control module, the battery, and the second interface, respectively. The voltage boost driver steps up an output voltage of the battery. The remaining capacity computation module adjusts the remaining capacity value of the battery in real time based on the battery discharging curve. The communication module sends the adjusted remaining battery capacity value to the terminal to display. Thus, the terminal to be charged can display the realtime and accurate remaining battery capacity for the user's reference.