Ventilation Vent with Integrated Pressure-Based Fault Detection

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Solution Overview

Problem

Existing premises ventilation systems lack the ability to detect defects such as fan breakdowns, duct leaks, or poorly positioned terminals, making it difficult for users to identify issues and perform maintenance effectively.

Innovation Solution

An air extraction or insufflation mouth with integrated detection means, including a measurement device to measure pressure differences and a data analysis system with an algorithm to compensate for environmental variations, which emits signals when defects are detected, allowing for remote and easy identification of ventilation system issues.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If fault detection means are integrated into the air extraction or insufflation vent, then fault detection capability is improved, but device complexity increases

Engineering Contradiction:
Improvefault detection capabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent integrates fault detection means directly into the air extraction or insufflation vent, combining the ventilation function with the monitoring function in a single device. This merging approach enables fault detection capability while keeping the overall system structure compact and manageable.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The air extraction or insufflation vent is designed to serve multiple functions: it performs the primary ventilation task while simultaneously acting as a monitoring station for detecting faults in the ventilation system. This multi-functionality reduces the need for separate dedicated fault detection devices.

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

2Measurement precision

If pressure difference measurement is used to detect faults, then measurement precision is improved, but device complexity increases

Engineering Contradiction:
Improvepressure difference measurement precisionVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces complex mechanical fault detection methods with pressure difference measurement using sensors. This substitution enables precise detection of ventilation system faults through electrical/mechanical sensing rather than complex mechanical inspection systems.

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

Solution Approach 2:

The patent monitors changes in pressure difference parameters to detect faults in the ventilation system. By tracking parameter variations (pressure differences) over time, the system can identify deviations from normal operation that indicate faults, providing precise measurement capability.

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If multiple measurements at regular intervals are performed, then measurement precision is improved, but loss of time increases

Engineering Contradiction:
Improvemeasurement precisionVSAvoidmeasurement time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent implements periodic measurements at regular intervals to monitor pressure differences in the ventilation system. This periodic sampling approach provides sufficient measurement precision to detect faults while maintaining an efficient measurement cadence that does not unnecessarily consume time.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system uses feedback from repeated measurements to improve detection accuracy. By comparing measurements taken at different time intervals, the system can distinguish between normal variations and actual faults, enhancing measurement precision without requiring excessive measurement frequency.

Inventive Principle:
Principle #23Feedback

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 reliable detection of ventilation system defects without requiring substantial work, integrating seamlessly into existing systems, facilitating maintenance and ensuring optimal operating conditions.

Implementation Method 1

the measuring device is configured to measure at least one pressure difference between the air inlet and the air outlet

Methodology Applied
Scientific EffectPressure difference measurement: Pressure Drop

Implementation Method 2

a first pressure sensor configured to measure a pressure at the air inlet of the air extraction or insufflation vent, and a second pressure sensor configured to measure a pressure at the air outlet

Methodology Applied
Scientific EffectPressure measurement: Pressure Drop

Data Source

PatentEP3978818B1Improved vent for extracting or blowing air for ventilation system for a room
Publication Date: 2025.02.12 AERECO
  • EP3978818B1 patent drawingFigure 1~2
  • EP3978818B1 patent drawingFigure 3~4
  • EP3978818B1 patent drawingFigure 5

AI summary

The present invention relates to an air extraction or supply vent (10) for a ventilation system (100) of a room, the air extraction or supply vent (10) comprising means for detecting a fault of the ventilation system (100) configured to detect a fault of the ventilation system (100) at a distance from the air extraction or supply vent (10).