Portable Device Danger Alerting via Multi-Scene Image Analysis
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Solution Overview
Problem
Existing danger alerting methods for portable electronic devices are inadequate as they often fail to recognize faces when the device is tilted or in low light conditions, and they do not account for obstacles other than people, leading to missed danger alerts.
Innovation Solution
A method and device that detect potential danger by monitoring the device's movement, application usage, and environmental conditions, including face recognition and image analysis of both the front and rear scenes, with adjustable alert timing based on danger probability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If face recognition is used to detect potential danger, then the accuracy of danger detection is improved, but the system fails to recognize faces when the device is tilted or in low light conditions
Solution Approach 1:
The patent extends the detection functionality from单一的face recognition to multiple detection modes including general object detection, tilt detection, and low-light adaptation. The system can detect various types of obstacles (people, vehicles, animals) and adapt to different environmental conditions (lighting, device orientation), making the danger detection system universally applicable across diverse scenarios.
Solution Approach 2:
The system dynamically adjusts detection parameters based on environmental conditions. When the device is tilted or in low light, the system modifies its detection thresholds and parameters to maintain effective obstacle detection, rather than relying solely on fixed face recognition parameters that fail under these conditions.
2Device complexity
If the system only detects faces to alert danger, then the alerting process is simple, but obstacles other than people are not detected leading to missed danger alerts
Solution Approach 1:
The detection system is designed to identify multiple types of obstacles including pedestrians, vehicles, and animals, not just human faces. This multi-functional detection capability ensures comprehensive danger coverage while maintaining a unified detection framework that does not significantly increase system complexity.
Solution Approach 2:
The patent segments the detection process into distinct obstacle categories (people, vehicles, animals, other objects) with specific detection criteria for each type. This segmentation allows the system to reliably detect various obstacles using targeted detection strategies for each category, improving overall reliability without requiring a completely complex new system.
3Speed
If the device provides immediate danger alerts, then the responsiveness is improved, but false alerts increase when the holder is using the device normally
Solution Approach 1:
The system performs preliminary detection and assessment before triggering an alert. It continuously monitors the environment and evaluates multiple factors (obstacle type, distance, device state, application usage) in advance to determine whether a genuine danger exists, thereby reducing false alerts while maintaining rapid response to real threats.
Solution Approach 2:
The system incorporates feedback mechanisms that consider the holder's current state and context. By monitoring application usage patterns and device state, the system can distinguish between normal usage scenarios and genuine danger situations, adjusting alert triggering based on contextual feedback to improve accuracy while maintaining responsiveness.
Data Source
AI summary
A danger alerting device, a danger alerting method for a portable electronic apparatus and a portable electronic apparatus are provided. The method includes: detecting whether a holder of the portable electronic apparatus is in a potential danger status; in case that the holder of the portable electronic apparatus is in the potential danger status, comparing a time duration data T for which the holder is in the potential danger status with a preset time duration data T0; and alerting the holder to danger in case that the time duration data T is greater than or equal to the preset time duration data T0. The danger alerting device and method can effectively prevent a holder from encountering danger while using a portable electronic apparatus during walking, and significantly reduce the probability of danger.