Smart Device Multi-Axis Camera and Sensor Fusion for False Alert Reduction
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Solution Overview
Problem
Existing wearable smart devices, such as smartwatches, face challenges in accurately determining the physical state and environment of users, often resulting in a high number of false alerts due to limited sensor data, which necessitates a more comprehensive solution for monitoring and analyzing user conditions.
Innovation Solution
A smart device system equipped with sensors and image capture devices that capture images along orthogonal axes, allowing for the analysis of both sensor data and visual information to determine the user's physical state and environment, and selectively issue alerts based on this comprehensive data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only sensor data is used for monitoring user physical state, then device complexity is reduced, but measurement precision and reliability of user state determination deteriorate
Solution Approach 1:
The patent combines sensor data (accelerometer, gyroscope) with image capture device data to create a multi-modal monitoring system. This merging of different data sources enables more accurate determination of user physical state and environment, reducing false alerts while maintaining manageable device complexity through integrated processing.
Solution Approach 2:
The smart device is designed with multi-functionality, serving both as a wearable monitoring device and an image capture device. The device can monitor user physical state through sensors and simultaneously capture environmental images, making it a universal monitoring solution that addresses multiple monitoring needs without requiring separate dedicated devices.
2Measurement precision
If multiple image capture devices with overlapping fields of view are used, then measurement precision of environment assessment is improved, but device complexity increases
Solution Approach 1:
The patent employs multiple image capture devices positioned at different spatial orientations (x-axis, y-axis, z-axis cameras) to capture images from multiple dimensions. This dimensional approach allows comprehensive environmental assessment by capturing views that single-axis devices cannot obtain, improving measurement precision of user state determination.
Solution Approach 2:
The monitoring function is segmented across multiple specialized camera units, each responsible for capturing images along specific axes. This segmentation allows each camera to be optimized for its specific orientation while collectively providing comprehensive environmental coverage, balancing device complexity with measurement precision.
3Reliability
If sensor data and image data are both processed, then reliability of user state determination is improved, but loss of time for data processing increases
Solution Approach 1:
The system performs preliminary processing of sensor data and image data separately before integration. Sensor data is processed to determine user physical state while image data is processed to assess environment, allowing parallel processing that reduces overall time loss while maintaining high reliability through comprehensive data analysis.
Solution Approach 2:
The system uses feedback mechanisms where processed sensor and image data are continuously analyzed to determine user physical state and environment. This feedback loop allows the system to adaptively process data in real-time, improving reliability by continuously monitoring and adjusting based on incoming data streams without excessive time loss.
Data Source
AI summary
Various aspects provide a system for monitoring and/or analyzing physical states, positions, activities, and/or surroundings corresponding to a plurality of users. The smart devices include: a first processing unit; a first set of sensors for acquiring or generating signals corresponding to at least one physiologic parameter of the user; a second set of sensors including at least one of an accelerometer, a gyroscope, and a geospatial coordinate sensor; a set of image capture devices for capturing images of an environment external to the smart device and generating image data corresponding to each captured image; and a memory storing program instructions that when executed by the first processing unit cause the communication subsystem to wirelessly transmit sensed signals and image data to an electronic or computing destination remote from or external to the smart device; and a set of servers for network communication with the set of smart devices.