Indoor Radon Detection With Pressure-Guided Ventilation Control
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Solution Overview
Problem
Current radon detection and mitigation systems in indoor environments are inefficient in maintaining a balance between indoor air quality, thermal comfort, and energy efficiency, often prioritizing one factor at the expense of others, and do not effectively utilize real-time data processing to manage radon exposure.
Innovation Solution
An IoT device equipped with a radon gas sensor, differential pressure sensor, and microcontroller that activates ventilation devices based on predefined thresholds and pressure differentials to reduce radon concentration, incorporating sensors for additional parameters like temperature and humidity, and communication modules for real-time data transmission and alert systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If ventilation devices are activated to reduce radon concentration, then radon exposure is reduced, but energy efficiency deteriorates
Solution Approach 1:
The system continuously monitors radon concentration levels and uses this feedback to control ventilation device operation. Ventilation is activated only when radon levels exceed predetermined thresholds, creating a closed-loop control system that reduces unnecessary energy consumption while maintaining radon exposure reduction
Solution Approach 2:
The system changes operational parameters dynamically by adjusting ventilation activation based on real-time radon concentration measurements and pressure differential conditions. This allows the system to optimize between radon mitigation and energy consumption by activating ventilation only when necessary
2Object-affected harmful factors
If real-time monitoring and proactive ventilation control are implemented, then indoor air quality is improved, but device complexity increases
Solution Approach 1:
The system integrates multiple functions into a single device including radon sensing, pressure differential measurement, data processing, and ventilation control. This multi-functionality reduces the need for separate systems while maintaining real-time monitoring and proactive ventilation capabilities
Solution Approach 2:
The system automatically processes data from sensors and makes ventilation decisions without requiring external intervention. The microcontroller unit autonomously compares radon levels and pressure differentials against thresholds and controls ventilation devices accordingly, reducing operational complexity
3Use of energy by moving object
If pressure differential measurement is used to control ventilation, then energy efficiency is improved, but measurement precision requirements increase
Solution Approach 1:
The system uses pressure differential measurement as an intermediary parameter to infer ventilation needs without directly measuring radon transport. This indirect measurement approach reduces the precision requirements compared to direct radon flux measurement while still enabling energy-efficient ventilation control
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 system effectively reduces radon exposure by ensuring a balanced equilibrium of indoor air quality, thermal comfort, and energy efficiency, providing real-time monitoring and proactive ventilation control, thus minimizing health risks from radon accumulation.
Implementation Method 1
a radon gas sensor...configured to detect radon concentration in an indoor environment
Implementation Method 2
a differential pressure sensor between outdoor and indoor air...configured to measure a pressure differential between outdoor and indoor air
Implementation Method 3
a ventilation device...configured to reduce the radon concentration by moving, to the outdoor environment, the indoor air
Data Source
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AI summary
The present application discloses a device for detecting and reducing radon concentration in an indoor environment. This device comprises at least one radon gas sensor and, at least one differential pressure sensor for measuring the difference between the indoor and outdoor atmospheric pressures, wherein both sensors are connected to a microcontroller configured to perform the pre-processing and aggregation of the data obtained by said sensors. To reduce radon levels, it triggers at least one physical actuator to activate a ventilation device for reducing the radon concentration in an indoor environment when indoor radon concentration is above a first predetermined threshold or when indoor radon concentration is above a second predetermined threshold and the differential pressure is negative.