Wearable Display Wear Detection for Host-Linked Power Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless display systems with wearable devices face battery life issues due to continuous processing even when not in use, leading to unnecessary power consumption and reduced battery life for both wearable and host devices.
Innovation Solution
Implementing touch sensors in wearable display devices to determine their use status and control operations accordingly, allowing the devices to enter a reduced power state when not in use, and synchronizing this status with the host device to adjust data processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the wearable display device continuously processes data from the host device, then the display functionality is maintained and ready for use, but battery life is significantly reduced due to unnecessary power consumption
Solution Approach 1:
The wearable display device dynamically adjusts its operational state based on detected usage conditions. The system transitions between active processing mode and reduced power mode, modifying its data processing behavior in real-time according to whether the device is being worn or carried, thereby optimizing battery life while maintaining display readiness when needed
Solution Approach 2:
The wearable display device autonomously determines its own usage status through sensors (accelerometer, gyroscope, proximity sensor) and automatically adjusts its data processing operations without requiring external control. The device self-regulates power consumption by detecting whether it is being worn on the body or merely carried, and independently switches between processing modes accordingly
2Adaptability or versatility
If the wearable display device processes all received data, then complete display functionality is provided, but unnecessary power is consumed when the device is not being used
Solution Approach 1:
The wearable display device applies partial processing action by selectively processing only the necessary portion of received data based on its current usage state. When not being worn, the device processes minimal or no data while maintaining the ability to quickly resume full processing when needed, thereby avoiding excessive power consumption while preserving complete display functionality when actually used
3Reliability
If the host device sends data continuously to the wearable device, then the wearable device is always ready to display, but both devices consume excessive battery power
Solution Approach 1:
The wearable display device implements periodic action by establishing event-driven communication with the host device rather than continuous data transmission. The device periodically checks for usage status changes and only initiates data processing or requests data transmission when actual usage conditions are detected, thereby maintaining display readiness while dramatically reducing unnecessary battery power consumption during non-usage periods
Data Source
AI summary
Techniques are described for controlling operation of both a host device and a wearable display device connected to the host device based on a use status of the wearable display device. The techniques include automatically determining a use status of a wearable display device based on feedback from one or more touch sensors within the wearable display device that indicates whether the wearable display device is worn by a user. Based on the determined use status, the wearable display device controls its own operation (e.g., controls operation of display screens of the wearable display device, a communication session with the host device, and display processing of data received from the host device). The wearable display device also sends an indication of the use status to the host device. The host device then controls its own data processing for the wearable display device based on the indicated use status.