Mobile Device Pocket Detection via Sensor Fusion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current mobile electronic devices lack effective methods for accurately detecting when they are placed in a storage location, such as a pocket or bag, which can lead to inefficient power management and user experience issues.
Innovation Solution
Incorporating a combination of proximity sensors and body reaction detection sensors, along with a controller that determines the device's location by detecting proximity and body reactions, allowing for precise identification of storage situations and adjusting device states accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If only proximity sensors are used to detect storage location, then the device structure remains simple, but the detection accuracy is insufficient to reliably determine when the device is in a storage part
Solution Approach 1:
The patent combines multiple sensors (proximity sensor and body reaction sensor) to detect storage location. The proximity sensor detects objects near the device, while the body reaction sensor detects body movements, creating a composite detection system that improves accuracy beyond what either sensor could achieve alone.
Solution Approach 2:
The sensor system is designed to serve multiple functions: detecting proximity to the device, detecting body reactions, and determining storage location status. This multi-functional approach allows the same sensor combination to handle various detection needs without requiring separate specialized sensors for each function.
2Reliability
If the device continuously monitors storage location using multiple sensors, then the detection reliability improves, but the energy consumption increases
Solution Approach 1:
The control unit periodically determines storage location status based on sensor inputs rather than continuously monitoring at maximum intensity. The system activates detection functions based on triggered conditions, such as when the proximity sensor detects an object or when body reactions are sensed, reducing unnecessary continuous operation of all sensors.
Solution Approach 2:
The system uses feedback from sensor detections to adjust its monitoring behavior. When the proximity sensor detects an object near the device or when body reaction sensors detect movement patterns consistent with storage actions, the control unit activates storage location determination, creating an event-driven monitoring approach that balances reliability with energy efficiency.
Data Source
AI summary
A mobile electronic device includes a first sensor that detects a proximity to an own device, a second sensor that detects a body reaction, and a controller that determines, when the proximity to the own device is detected by the first sensor and the body reaction is detected by the second sensor, that the own device is in a storage part provided on clothes. When it is determined that the own device is in the storage part provided on the clothes, the controller determines whether the clothes correspond to upper-body clothing or lower-body clothing of a user based on rotation information of the own device.