Visual Signal Triggered Power Management for Personal Imaging Systems
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Solution Overview
Problem
Personal imaging systems face significant power and processing resource challenges when connected via wireless radio technologies for extended data collection periods, such as in mobile application usability testing, leading to inefficiencies and skewed data due to manual start/stop methods.
Innovation Solution
Implementing a method where a personal imaging device detects visual start and end signals, such as QR codes, to activate and deactivate sensors and processing-intensive programs, allowing for data collection without continuous wireless connectivity, thereby minimizing power and resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If personal imaging system is connected to mobile device via wireless radio technologies for extended data collection, then data collection capability is improved, but power consumption increases significantly
Solution Approach 1:
The system pre-loads and caches application usage data, screen recordings, and sensor information locally in the imaging device before wireless transmission is needed. This preliminary data preparation eliminates the need for continuous wireless connectivity during data collection, allowing extended monitoring without sustained power-intensive radio operations
Solution Approach 2:
The patent extracts the data collection function from the mobile device and relocates it to the personal imaging system. The imaging device independently captures and stores usage data, sensor information, and screen recordings locally, separating this resource-intensive function from the mobile device's wireless processing chain, thereby enabling extended collection without continuous wireless power drain
2Duration of action of moving object
If personal imaging system is connected to mobile device via wireless radio technologies for data collection, then data collection capability is improved, but processing resources are consumed
Solution Approach 1:
The system segments data collection into discrete, independently processable units: screen recordings are captured as separate video files, sensor data is stored as individual timestamped records, and application usage is tracked as separate event logs. This segmentation allows the imaging device to process and store data in manageable chunks without requiring continuous high-level processing resources or wireless synchronization
Solution Approach 2:
The personal imaging system performs self-service data collection by autonomously capturing screen recordings, sensor information, and usage data without requiring continuous mobile device processing or wireless coordination. The device independently manages its own data collection, storage, and synchronization operations, reducing the processing burden on both devices
3Ease of operation
If manual start and stop methods are used for usability testing, then user control is maintained, but data skewness increases
Solution Approach 1:
The patent introduces an automated detection system that monitors for specific visual cues or triggers in the application interface to automatically start and stop data collection. This intermediary automated mechanism removes the human element from the start/stop decision, eliminating the bias introduced by manual user control while preserving ease of operation through simple visual trigger recognition
Data Source
AI summary
Power-efficient data collection by a personal imaging device regarding a user's interaction with an application on a mobile device by automatically switching on and off costly, power-consuming applications of the personal imaging device without the use of a radio signal. The personal imaging device detects a visual start signal displayed on the mobile device of a tagged application on the mobile device. The personal imaging device activates sensors of the personal imaging device for collecting data regarding the user's interaction with the application on the mobile device. The personal imaging device collects data regarding the user's interaction with the application on the mobile device via the activated sensors and stores the data in a repository. The personal imaging device detects a visual end signal displayed on the mobile device, ending data collection.