Dual Transceiver Proximity Control for Power State Management
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Solution Overview
Problem
Portable electronic devices face reduced battery life due to unnecessary power consumption in power saving modes, especially when users are far away and not actively using the device, leading to increased Internet connectivity and background activity, which affects user experience and battery longevity.
Innovation Solution
The electronic device employs a dual wireless transceiver system and a processor to monitor user proximity, switching between power states based on distance thresholds, using Bluetooth Low Energy for initial distance estimation and Ultra-wideband for accurate proximity detection, thereby controlling Internet connectivity and activating sensors like ToF cameras to automatically return to a working state when the user is near.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the electronic device operates in power saving mode with background Internet connectivity, then the device remains responsive to user input, but power consumption increases reducing battery life
Solution Approach 1:
The system dynamically adjusts the power state of the electronic device based on real-time proximity detection. When a user approaches, the device transitions from power saving mode to active mode, and when the user leaves, it returns to power saving mode. This dynamic state adjustment resolves the contradiction by making the device responsive only when needed, eliminating unnecessary power consumption during idle periods.
Solution Approach 2:
The proximity detection system provides continuous feedback about user presence to the power management system. This feedback loop enables the device to automatically adjust its operational state based on whether a user is nearby, ensuring the device remains responsive when users are present while conserving power when they are absent.
2Measurement precision
If the electronic device uses dual wireless transceivers for proximity monitoring, then user proximity detection accuracy improves, but device complexity increases
Solution Approach 1:
The proximity detection system is segmented into two independent wireless transceiver subsystems: a first wireless transceiver for initial detection and a second wireless transceiver for precise proximity monitoring. Each transceiver operates independently with its own optimization parameters, allowing the system to achieve high measurement precision while managing complexity through modular architecture.
Solution Approach 2:
The dual wireless transceiver system serves multiple functions: the first transceiver handles initial user approach detection and basic communication, while the second transceiver provides precise proximity monitoring and enhanced communication capabilities. This multi-functionality allows a single system to address both accuracy requirements and operational needs without requiring entirely separate systems.
Data Source
AI summary
An electronic device may include a first wireless transceiver, a second wireless transceiver, and a processor. The processor may establish a first wireless communication with an external device via the first wireless transceiver. Further, processor may monitor a distance between the electronic device and the external device via the first wireless transceiver. In response to a determination that the monitored distance crosses a first threshold, the processor may establish a second wireless communication with the external device via the second wireless transceiver and monitor the distance between the electronic device and the external device via the second wireless transceiver. Furthermore, the processor may control the electronic device to operate in a first power state or a second power state based on the monitored distance via the first wireless transceiver or the second wireless transceiver.