Non-Contact Physiological Monitoring via Radar Sensing

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Solution Overview

Problem

Current sensing devices for infants, young children, and the elderly are prone to skin allergies and false signals due to adhesive contact, and they fail to provide real-time, reliable monitoring of physiological conditions, especially for detecting life-threatening situations like choking or abnormal breathing.

Innovation Solution

A non-contact comprehensive care device with a case, fixing element, sensing elements, storage element, processing element, power supply, and data transmission capabilities, which uses radar, temperature, inertial measurement, and GPS sensing to monitor physiological states wirelessly, generating alerts when preset values are exceeded, and can be attached to clothing or the body without discomfort.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If adhesive contact measurement devices are used to monitor physiological information, then real-time sensing capability is achieved, but skin allergies and false signals occur due to adhesive contact and device detachment

Engineering Contradiction:

Improvephysiological monitoring reliabilityVSAvoidskin allergies and false signals

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces adhesive mechanical contact measurement with radar-based non-contact sensing. The radar sensing element emits electromagnetic waves to detect physiological parameters (heartbeat, respiration) without physical contact, eliminating skin allergies and false signals caused by adhesive electrodes while maintaining real-time monitoring capability

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces radar waves as an intermediary medium to transmit sensing information. Instead of direct adhesive contact between the device and skin, radar waves serve as the mediator to detect physiological signals through the clothing and body, achieving non-contact measurement

Inventive Principle:

Principle #24Intermediary (Mediator)

2Measurement precision

If adhesive electrode pads are used for physiological sensing, then physiological signals can be detected, but the device is easy to fall off when infants, young children or the elderly turn over

Engineering Contradiction:

Improvephysiological signal detection accuracyVSAvoiddevice attachment stability

Core Design Contradiction:

Measurement precisionVSStability of the object's composition

Solution Approach 1:

The patent replaces mechanical adhesive attachment with non-contact radar sensing. The device only needs to be positioned near the body (on clothing or nearby surface) rather than firmly attached to skin, eliminating the problem of device detachment during movement while maintaining signal detection accuracy through electromagnetic wave sensing

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If non-contact sensing is used to avoid skin allergies and device detachment, then comfort and reliability are improved, but the device size and weight may increase

Engineering Contradiction:

Improvephysiological monitoring reliabilityVSAvoiddevice weight

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The patent integrates multiple sensing functions (heartbeat detection, respiration monitoring, position sensing) into a single non-contact radar-based device. By using radar technology that can detect multiple physiological parameters simultaneously without contact, the device achieves comprehensive monitoring functionality while keeping the form factor suitable for portable use

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

Enables real-time, reliable monitoring of infants', children's, and the elderly's physiological states, reducing skin irritation and false alarms, providing timely warnings for caregivers through a portable device, ensuring safer care without the need for adhesive contact.

Implementation Method 1

the sensing elements include at least one element selected from the group consisting of a radar sensing element, a temperature sensing element, an inertial measurement unit, a global positioning system sensing element, and a pressure sensing element

Methodology Applied

Scientific EffectRadar: Radar

Implementation Method 2

the sensing elements include at least one element selected from the group consisting of a radar sensing element, a temperature sensing element

Methodology Applied

Scientific EffectThermal radiation: Thermal Radiation

Data Source

PatentUS11100779B1Comprehensive care device

Publication Date: 2021.08.24 NEW CENTURY PRODUCTS LTD

AI summary

The present invention provides a comprehensive care device comprising a case, a fixing element for fixing the case, sensing elements, a storage element, a processing element, a data transmission element and a power supply element. Each sensing element is used to sense physiological state values of the care object to generate physiological state signals. The storage element stores the physiological state signals sensed by the sensing elements. The processing element receives the physiological state signals stored in the storage element to perform a signal calculation, and then compare with a preset value to determine whether generate a warning signal or not. The data transmission element transmits the physiological state signals to a portable device; and the power supply element provides an electric power with the comprehensive care device. Therefore, the comprehensive care device of the present invention can provide real-time monitoring and care of the care object.