Systems and methods for zoning system configuration

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Solution Overview

Problem

Zoned HVAC systems face challenges in dynamically adjusting airflow rates to meet specific zone demands, often resulting in inefficient air distribution due to fixed default settings that do not account for varying equipment capabilities and user preferences.

Innovation Solution

A control system that calculates a default airflow rate based on the minimum and maximum permitted airflow rates of HVAC equipment and the number of zones, allowing for user-adjusted customized rates while ensuring they meet or exceed the minimum required airflow to prevent reduced air circulation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If fixed default airflow rates are used in zoned HVAC systems, then system operation is simplified, but air distribution efficiency deteriorates due to inability to meet varying zone demands

Engineering Contradiction:
Improvesystem operation simplicityVSAvoidair distribution efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent implements dynamic airflow rate adjustment by allowing the system to calculate and apply different airflow rates for different zones based on their specific cooling loads and demands, transforming the fixed airflow system into an adaptive one that responds to real-time zone requirements

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies different airflow rates to different zones according to their specific needs, making each zone's airflow characteristic locally optimized rather than uniformly applied, thereby improving overall air distribution efficiency

Inventive Principle:
Principle #3Local quality

2Adaptability or versatility

If user-adjusted customized airflow rates are allowed, then user preferences are satisfied, but system reliability deteriorates when user inputs fall below minimum permitted airflow rates

Engineering Contradiction:
Improveuser preference accommodationVSAvoidsystem performance stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent incorporates feedback mechanisms where the control system monitors user-input airflow rates and compares them against minimum permitted thresholds, providing corrective action by adjusting the airflow rate when it falls below the required minimum, thus maintaining system reliability

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent establishes minimum permitted airflow rates as predetermined safety thresholds before user adjustment, cushioning against potential harmful effects of overly low airflow settings by automatically preventing them from taking effect

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Productivity

If default airflow rates are calculated based on equipment capabilities and zone numbers, then air distribution is optimized, but device complexity increases due to additional calculation requirements

Engineering Contradiction:
Improveair distribution optimizationVSAvoidcontrol system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements self-service functionality where the control system automatically calculates optimal airflow rates for each zone based on equipment capabilities and zone characteristics, eliminating the need for manual configuration and reducing the burden on users despite the increased computational requirements

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11009243B2Systems and methods for zoning system configuration
Publication Date: 2021.05.18 TYCO FIRE & SECURITY GMBH
  • US11009243B2 patent drawing
  • US11009243B2 patent drawing
  • US11009243B2 patent drawing

AI summary

The techniques described herein provide systems and methods for controlling climate characteristics in a building. The control system of a climate management system may calculate a default airflow rate for each zone in the building based on a minimum permitted airflow rate of climate control equipment, a maximum permitted airflow rate of the climate control equipment, and the number of zones serviced by the climate control equipment. The control system may also adjust the default airflow rate for a zone to a customized airflow rate based on a user input. The control system may adjust the default airflow rate to the customized airflow rate if the customized airflow rate is greater than or equal to the minimum permitted airflow rate. The control system may adjust the default airflow rate to the minimum permitted airflow rate if the customized airflow rate is less than the minimum permitted airflow rate.