Non-contact Vital Sign Detection via Iris Optical Analysis
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Solution Overview
Problem
Existing medical detectors are large, complex, and require professional knowledge, limiting their application to ordinary household users.
Innovation Solution
A non-contact vital sign detection device comprising a processing unit, a preset light source, a beam splitter, a camera, and a display unit, which emits a light ray to stimulate the iris, captures and filters reflected light to extract iris information, compares it with preset data to determine vital signs, and displays the results, making it simple to operate and applicable for non-professionals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional contact detection methods are used, then detection accuracy is improved, but device volume increases and operation complexity increases
Solution Approach 1:
The patent replaces traditional mechanical contact-based detection systems with an optical detection system that uses light sources and cameras to capture iris information non-contactly. This substitution eliminates the need for physical contact sensors and complex mechanical structures, thereby reducing device complexity while maintaining detection capabilities through optical fields instead of mechanical fields.
Solution Approach 2:
The patent uses optical imaging to create a visual copy of the iris information through camera capture. This optical copying method replaces direct physical measurement, allowing detection without mechanical contact. The captured iris images serve as optical replicas that can be analyzed digitally, simplifying the detection process while preserving measurement accuracy.
2Adaptability or versatility
If traditional medical detectors are used, then detection functionality is improved, but device volume increases
Solution Approach 1:
The patent merges multiple detection functions into a single integrated device that combines light source emission, optical reflection capture, and iris information extraction in one compact unit. By combining these previously separate functions into a unified system, the patent achieves comprehensive detection functionality while minimizing device volume through functional integration.
Solution Approach 2:
The patent creates a multi-functional device that can perform various detection tasks using the same core optical system. The device universally applies optical reflection principles to detect different iris characteristics, allowing one device to serve multiple detection purposes rather than requiring separate specialized equipment for each function, thereby reducing overall device volume.
3Measurement precision
If professional medical equipment is used, then detection precision is improved, but ease of operation deteriorates
Solution Approach 1:
The patent implements a self-service detection system where the device automatically captures iris images and extracts health information without requiring professional operation. The system performs self-calibration and automatic analysis, allowing ordinary users to obtain accurate health检测结果 by simply positioning their eyes in front of the device, eliminating the need for professional medical knowledge or complex operational procedures.
Solution Approach 2:
The patent incorporates preliminary processing of detection algorithms and reference data into the device before use. By pre-loading iris information databases and detection algorithms, the device is prepared in advance to automatically process and analyze captured images, eliminating the need for professionals to perform complex manual analysis during operation and making the system accessible to ordinary users.
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
The device is compact, easy to use, and suitable for household use, providing automatic vital sign detection with a wide application scope, allowing users to assess their health state conveniently.
Implementation Method 1
the beam splitter is configured to filter the light ray reflected by the eyes of the target user to the camera based on the preset light ray
Implementation Method 2
the camera is configured to capture the eyes of the target user when receiving the capturing instruction and send the captured eye video to the processing unit
Data Source
AI summary
The present disclosure provides a non-contact vital sign detection device, which comprises a processing unit, a preset light source, a beam splitter, a camera and a display unit; the processing unit sends an emission instruction to the preset light source and sends a capturing instruction to the camera when detecting a first preset instruction; the preset light source emits a preset light ray outwards when receiving the emission instruction; the beam splitter filters the light ray reflected by the eyes of the target user to the camera based on the preset light ray.