Wearable Device Power Management via Wear State Detection
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Solution Overview
Problem
Wearable computing devices lack the ability to automatically determine when they are being worn or not, leading to unnecessary operation and potential security risks when not in use.
Innovation Solution
A processor-based system that detects the wearable state of a device (on a person or off a person) and modifies settings accordingly, including power, security, and communication settings, using sensors and modules to determine the device's state and adjust configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wearable device continues to operate when not worn, then the device remains ready for use and can maintain connectivity, but energy is wasted and security is compromised
Solution Approach 1:
The system uses sensors to detect whether the wearable device is being worn and provides feedback to the processor. Based on this feedback, the processor automatically adjusts the power state of the device, turning it off when not worn and turning it on when worn, thus resolving the contradiction between maintaining readiness and conserving energy
Solution Approach 2:
The wearable device automatically determines its own wear state through sensors and adjusts its power state accordingly without requiring manual user intervention. The device serves itself by detecting its own state and making appropriate power management decisions, eliminating the need for users to manually power the device on or off
2Ease of operation
If the wearable device continues to operate when not worn, then the device remains accessible and responsive, but security risks increase
Solution Approach 1:
The system continuously monitors whether the device is being worn through sensors and uses this feedback to automatically control the power state. When the device is detected as not being worn, it automatically powers down, thereby eliminating security risks associated with continuous operation while maintaining accessibility when needed
Solution Approach 2:
The device takes preliminary action by automatically detecting its wear state and proactively powering down before any security breach can occur. This preventive measure ensures that the device is not vulnerable to security attacks when not being worn, as it is already in a powered-off state
3Loss of energy
If the user manually powers down the device, then energy consumption is reduced, but user effort and potential errors increase
Solution Approach 1:
The device performs self-service by automatically detecting its own wear state through integrated sensors and making power management decisions without requiring user input. This eliminates the complexity of manual power management and reduces the likelihood of user errors while achieving energy savings
Solution Approach 2:
The system uses sensor feedback to automatically control the power state based on whether the device is being worn. This closed-loop control eliminates the need for users to manually monitor and control power settings, reducing interaction complexity while maintaining energy efficiency
Data Source
AI summary
For configuring wearable device, a method is disclosed that includes detecting a current wearable state for a wearable device, wherein the current wearable state is selected from the group consisting of on a person and off a person, and modifying a setting for the wearable device based on the detected wearable state.