Networked Ventilation System for Constant Total Air Volume Control
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Solution Overview
Problem
Conventional ventilation systems face issues with maintaining optimal ventilation air volume, leading to inefficient energy use and user discomfort due to excessive ventilation and motor failures, particularly with range hood fans, which can stop or operate at suboptimal levels.
Innovation Solution
A networked ventilation system with multiple interconnected ventilation apparatuses that share information through an information transmission network to adjust and maintain a constant total ventilation air volume, using control parts to determine necessary air volumes and detect output volumes, ensuring optimal operation and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a range hood fan operates at large air volume to ensure ventilation, then ventilation reliability is improved, but energy consumption increases and user comfort deteriorates due to excessive ventilation
Solution Approach 1:
The patent implements dynamic air volume adjustment where the ventilation system continuously monitors actual ventilation needs and adjusts the air volume accordingly. Instead of operating at fixed large capacity, the range hood fan modulates its output based on real-time conditions, ensuring sufficient ventilation while avoiding excessive energy consumption and discomfort from over-ventilation.
Solution Approach 2:
The system incorporates feedback mechanisms that monitor ventilation effectiveness and adjust operational parameters accordingly. By detecting whether adequate ventilation is achieved and responding to actual conditions, the system optimizes energy usage while maintaining reliability, preventing both insufficient and excessive ventilation operations.
2Reliability
If a range hood fan operates at large air volume, then ventilation reliability is improved, but user comfort worsens due to excessive ventilation
Solution Approach 1:
The system dynamically adjusts air volume output to match actual ventilation requirements rather than operating at maximum capacity continuously. This dynamic control ensures that ventilation reliability is maintained through adaptive response to conditions while preventing user discomfort caused by excessive air movement and pressure changes.
3Use of energy by moving object
If the ventilation system stops operation to save energy, then energy consumption is reduced, but ventilation reliability deteriorates when failures occur
Solution Approach 1:
The ventilation system performs self-diagnosis and automatic recovery functions. When a failure is detected, the system autonomously identifies the issue and attempts recovery without requiring manual intervention or complete shutdown, thereby maintaining operational reliability while managing energy consumption efficiently through intelligent control rather than simple on/off operation.
Solution Approach 2:
The system continuously monitors operational status and provides feedback to the control mechanism. This enables the system to detect failures, adjust operations accordingly, and maintain ventilation reliability while optimizing energy usage based on actual performance conditions rather than operating at fixed states.
4Device complexity
If multiple ventilation apparatuses operate independently, then device complexity is reduced, but total ventilation air volume control deteriorates leading to energy waste
Solution Approach 1:
The patent merges the control functions of multiple ventilation apparatuses into a coordinated system. By combining individual control units into an integrated networked system, the patent enables centralized optimization of total ventilation air volume while maintaining relatively simple individual device structures, thus reducing overall energy waste without significantly increasing complexity.
Solution Approach 2:
The control system performs multiple functions including individual apparatus control, total air volume optimization, failure detection, and automatic recovery. This multi-functional approach allows the system to coordinate multiple ventilation devices efficiently, managing energy consumption across the entire system while maintaining simplicity through a unified control architecture.
Data Source
AI summary
A first ventilation apparatus of ventilation apparatuses which form a ventilation system includes: a first information transmission part (18a); a first information reception part (19a); and a first control part (17a). The first control part (17a) includes: a first total ventilation air volume determination part (20a); a first-ventilation-apparatus first air volume decision part (21a); and a first air volume detection part (22a).