Tilt Sensor-Based Power Management for Mobile Signal Scanning
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Solution Overview
Problem
Mobile devices face challenges in optimizing battery life due to limitations in power management, leading to frequent charging needs, which is inconvenient and costly to address through traditional design and hardware enhancements.
Innovation Solution
Incorporating a tilt sensor to detect movements and orientations, allowing the device to intelligently manage power consumption by terminating scanning operations when not needed, such as during vehicle travel, and resuming scanning when the user arrives at a relevant location, like a coffee shop, to conserve battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the device continuously scans for signals to maintain connectivity and functionality, then the signal detection capability is improved, but the battery consumption increases
Solution Approach 1:
The patent implements periodic scanning intervals instead of continuous scanning, where the transceiver alternates between active scanning periods and idle periods. This reduces overall power consumption while maintaining adequate signal detection capability through regular periodic checks.
Solution Approach 2:
The tilt sensor autonomously detects device orientation and movement patterns, enabling the system to automatically adjust scanning behavior without user intervention. The sensor triggers scanning resumption when specific tilt patterns indicate the device has arrived at a destination or been placed down.
2Duration of action of moving object
If the device terminates scanning operations to conserve power, then battery life is extended, but the signal detection responsiveness deteriorates
Solution Approach 1:
The tilt sensor continuously monitors device orientation in advance, detecting patterns that predict when scanning should resume. By pre-detecting tilt patterns indicating device placement or arrival, the system can quickly resume scanning without waiting for timeout periods, maintaining responsiveness while conserving power during idle periods.
Solution Approach 2:
The system uses tilt sensor feedback to dynamically control transceiver scanning behavior. When the tilt sensor detects specific patterns (device placed down, device picked up), it provides feedback to resume scanning operations, creating a responsive closed-loop control that balances power consumption with detection needs.
3Duration of action of moving object
If the device uses more advanced power management strategies, then battery life is extended, but the device complexity increases
Solution Approach 1:
The tilt sensor serves as an intermediary component that bridges the gap between simple motion detection and complex power management. It provides easy-to-interpret tilt data that directly controls transceiver scanning behavior, avoiding the need for complex algorithms while achieving intelligent power management through a dedicated low-power sensor.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach extends battery life by reducing unnecessary power usage during periods of inactivity or low signal interest, such as during vehicle travel, and optimizes power consumption based on user activity, thereby reducing the need for frequent charging.
Implementation Method 1
a tilt sensor configured to detect one or more tilts of the mobile device
Data Source
AI summary
Various systems, mediums, and methods herein describe a computing system that includes a tilt sensor and a transceiver. The system is configured to determine one or more tilts of the system detected by the tilt sensor. The system is also configured to determine a scan interval and a rest interval based on the one or more tilts detected. The system is also configured to provide scanning power to cause a transceiver of the system to scan an environment for one or more signals of interest based on the scan interval and the rest interval. As such, the one or more signals may be identified from the scan of the environment.