Adaptive Interface Using Hierarchical Sensor Activation
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Solution Overview
Problem
Mobile electronic communications devices face challenges in providing simple yet secure access while minimizing power consumption and maintaining user experience, as existing authentication methods require high power sensors and systems.
Innovation Solution
The device employs a hierarchical sensor system that uses low power sensors to detect user presence and adapt the user interface, gradually activating higher power sensors like depth and camera imaging based on proximity, enabling touchless authentication and adaptive functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high power sensors and systems are used for authentication, then authentication accuracy is improved, but power consumption increases
Solution Approach 1:
The system dynamically adjusts sensor activation based on detected presence. Low power sensors continuously monitor for presence, and only when presence is detected do higher power sensors (depth imaging, high resolution camera) get activated for authentication. This dynamic switching resolves the contradiction by ensuring high precision sensors are only active when needed, not continuously.
Solution Approach 2:
The system performs preliminary detection using low power sensors before activating high power sensors. The low power sensors scan for presence first, and only after confirming presence does the system proceed to activate the more power-intensive depth imaging and camera systems for actual authentication. This preliminary action prevents unnecessary activation of high power sensors.
2Measurement precision
If continuous monitoring with high power sensors is used, then detection accuracy is improved, but power consumption increases
Solution Approach 1:
The system uses periodic action by having low power sensors continuously monitor and only activating high power sensors periodically when presence is detected. This creates a rhythm of low-power operation punctuated by brief high-power authentication events, resolving the contradiction between continuous monitoring accuracy and power consumption.
Solution Approach 2:
The monitoring system dynamically transitions between two states: a low-power continuous monitoring state using basic sensors, and a high-power authentication state using depth and camera sensors. This dynamic state transition ensures detection accuracy is maintained through continuous low-power monitoring while avoiding the power consumption of continuous high-power sensor operation.
3Speed
If multiple sensors are activated simultaneously, then authentication speed is improved, but power consumption increases
Solution Approach 1:
The authentication process is segmented into distinct stages: presence detection using low power sensors, then conditional activation of depth imaging, then conditional activation of high resolution camera. This segmentation allows the system to progress through authentication steps only when needed, maintaining speed by having ready protocols while avoiding simultaneous activation of all sensors.
Solution Approach 2:
The system performs preliminary presence detection before proceeding to full authentication. By checking for presence first using low power sensors, the system prepares for potential authentication without actually activating all sensors. This preliminary action maintains authentication readiness and speed while avoiding unnecessary simultaneous sensor activation and its power cost.
Data Source
AI summary
Systems and methods for authenticating a user of a mobile communications device entail scanning an environment of the mobile device with a low power sensor and detecting a nearby person via the first sensor. In response, a higher power sensor is activated and the person is authenticated via the second sensor using a first authentication mechanism. A first level of access is granted to the person at this point. When the person moves to within a first threshold distance of the device, the person is authenticated using a second more secure authentication mechanism, and a second, higher, level of access is granted to the person.