Microwave Posture Monitoring in High-Vapor Shower Environments

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing monitoring systems fail to determine whether a user is in a dangerous posture in environments with high vapor concentration, such as a shower room, due to the inability of cameras and infrared sensors to effectively penetrate through vapor.

Innovation Solution

Utilizing a microwave radar device to scan and detect human movement postures, analyze posture changes, and send an alarm signal when a dangerous posture is detected, with the capability to penetrate through high vapor environments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a camera or infrared sensor is used to monitor a room, then the monitoring system can detect human presence and movement, but it cannot effectively penetrate through high vapor concentration environments to determine whether a user is in a dangerous posture

Engineering Contradiction:
Improvemonitoring reliability in high vapor environmentsVSAvoidvapor concentration interference
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces optical-based monitoring systems (cameras and infrared sensors) with a microwave radar system. The microwave radar device emits microwave signals that can penetrate through high vapor concentration environments, enabling reliable detection of human posture and movement in shower rooms and other high-vapor areas where optical sensors fail.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the detection parameter from optical frequency (visible light/infrared) to microwave frequency. This parameter change enables the monitoring system to penetrate through vapor and steam, as microwave waves have better penetration capability through such media compared to optical waves.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If microwave radar technology is used to penetrate through high vapor environments, then monitoring reliability improves, but the device complexity and cost increase

Engineering Contradiction:
Improvemonitoring reliability in high vapor environmentsVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent integrates multiple functions into the microwave radar system, including human presence detection, posture recognition, and dangerous situation monitoring. By making the system multi-functional, the patent reduces the need for separate specialized devices, thereby managing complexity while improving reliability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent introduces a processor as an intermediary component that receives microwave signals, processes them to identify postures, and determines dangerous situations. This intermediary approach modularizes the system, making the complex processing function separable and manageable while maintaining high reliability in vapor environments.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Accurately monitors human postures in high vapor environments, ensuring timely notification of dangerous situations, thereby enhancing user safety.

Implementation Method 1

controlling the microwave radar device to emit continuously an electromagnetic wave of preset frequency to the current position and the preset person; controlling the microwave radar device to detect Doppler frequency offset of an echo to obtain the microwave detection signal of preset duration

Methodology Applied
Scientific EffectDoppler effect: Doppler Effect

Data Source

PatentUS12475774B2Method and system for monitoring human movement posture, human posture monitor, storage medium and processor
Publication Date: 2025.11.18 GREE ELECTRIC APPLIANCE INC OF ZHUHAI
  • US12475774B2 patent drawing
  • US12475774B2 patent drawing
  • US12475774B2 patent drawing

AI summary

Disclosed are a method and system for monitoring a human movement posture, a human posture monitor, a storage medium and a processor. The monitoring method includes: receiving a microwave detection signal, wherein the microwave detection signal is a detection signal obtained after microwave scanning is conducted on a target region (S102); determining whether a current movement posture of a preset person in the target region is in a range of dangerous postures according to the microwave detection signal, wherein the current movement posture is an action form of the preset person at a position at a current time point (S104); and sending out an alarm signal when the current movement posture of the preset person in the target region is in the range of dangerous postures (S106).