Smart Window Prompt Device for Indoor Air Quality Control

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Solution Overview

Problem

Users often forget to open or close windows reasonably, leading to poor indoor air quality, which affects health and can result in indoor air pollution or security issues.

Innovation Solution

A method and device that acquire information about the open-or-closed state of doors or windows and indoor/outdoor environments to generate prompts for optimal opening/closing, considering factors like air quality, device operation, and harmful gas content, and can control the windows automatically or via mobile feedback.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the user opens or closes doors and windows manually, then the user has control over indoor air circulation, but the user often forgets to open or close the window, leading to poor indoor air quality

Engineering Contradiction:
ImproveManual control of door/windowVSAvoidIndoor air quality maintenance
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system automatically monitors indoor and outdoor air quality parameters (PM2.5, temperature, humidity, etc.) and autonomously determines whether to open or close windows/doors based on the comparison results, eliminating the need for manual user operation while ensuring reliable air quality maintenance

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system continuously monitors air quality parameters and provides real-time feedback through prompts to users about the optimal window/door state, creating a closed-loop control system that adjusts behavior based on environmental conditions

Inventive Principle:
Principle #23Feedback

2Productivity

If the user opens windows when outdoor air quality is poor, then indoor air circulation is improved, but indoor air pollution increases due to outdoor pollutants entering

Engineering Contradiction:
ImproveAir circulation efficiencyVSAvoidIndoor air pollution
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary monitoring and comparison of indoor and outdoor air quality parameters before making the decision to open or close windows, predicting the outcome of potential actions and selecting the optimal one in advance to avoid introducing pollutants

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system autonomously compares air quality data and determines the optimal window state without user intervention, automatically preventing pollution entry by closing windows when outdoor quality is poor while maintaining circulation when outdoor quality is good

Inventive Principle:
Principle #25Self-service

3Reliability

If the system provides automated window control based on air quality monitoring, then indoor air quality is maintained, but the system complexity increases

Engineering Contradiction:
ImproveIndoor air quality maintenanceVSAvoidSystem structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system integrates multiple air quality monitoring functions (PM2.5, temperature, humidity, formaldehyde detection) and window control functions into a single multi-functional platform, reducing overall system complexity through consolidation while maintaining comprehensive air quality management capabilities

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

Solution Approach 2:

The system introduces a mobile terminal as an intermediary communication interface between the air quality monitoring device and the user, simplifying the direct system complexity by offloading the interaction layer to a separate, standardized communication channel

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3046290B1Method and device for generating prompt
Publication Date: 2018.12.12 XIAOMI INC
  • EP3046290B1 patent drawingFigure 1~2
  • EP3046290B1 patent drawingFigure 3A~3B
  • EP3046290B1 patent drawingFigure 3C~3D

AI summary

It is provided a method and device for generating a prompt, which belong to the technical field of smart home. The method includes that: it is acquired (201) information about an open-or-closed state of a door or window; it is acquired (202) information about indoor and outdoor environments; and a prompt is generated (203) according to the information about the open-or-closed state of the door or window and the information about the indoor and outdoor environments.