Multiple-Antenna HVAC System for Adaptive Wireless Network Connection

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Solution Overview

Problem

HVAC systems face challenges in efficiently configuring wireless connections to networked devices due to physical barriers and distance, which impede their ability to connect to wireless networks effectively.

Innovation Solution

A multiple-antenna HVAC system with a controller that uses a first antenna for non-mesh and a second antenna for mesh connections, self-configuring by searching for suitable connection points based on signal criteria to establish wireless communication, thereby facilitating connection to wireless networks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a single antenna is used for wireless communication in HVAC systems, then the device complexity is reduced, but the reliability of wireless connection is worsened due to physical barriers and distance

Engineering Contradiction:
Improvewireless connection reliabilityVSAvoidantenna system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The wireless communication system is segmented into multiple independent antenna units, each capable of establishing separate wireless connections. The controller divides the communication task across multiple antennas, allowing parallel connection attempts to different network access points, thereby improving connection reliability without requiring a single complex antenna system

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each antenna in the multiple-antenna system is designed to perform the same wireless communication function, making them universally interchangeable. This multi-functionality allows any antenna to potentially connect to any wireless network access point, providing flexibility and redundancy that improves reliability while maintaining simple, standardized antenna designs

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

2Adaptability or versatility

If the HVAC system actively searches for optimal connection points, then the adaptability to different wireless environments is improved, but the loss of time during configuration is increased

Engineering Contradiction:
Improvewireless environment adaptabilityVSAvoidconfiguration time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system performs preliminary scanning and evaluation of available wireless connection points during the initial configuration phase. By proactively identifying and storing information about suitable access points before actual operation begins, the system adapts to the wireless environment in advance, enabling faster connection establishment during normal operation without significant time loss

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The controller dynamically adjusts the connection selection process based on real-time signal quality measurements and environmental conditions. The system can quickly switch between pre-identified connection points and perform new scans when needed, creating a dynamic response that balances adaptability with time efficiency rather than using static, time-consuming configuration methods

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11432168B2Self-configuring multiple-antenna system
Publication Date: 2022.08.30 LENNOX IND INC
  • US11432168B2 patent drawing
  • US11432168B2 patent drawing
  • US11432168B2 patent drawing

AI summary

In an embodiment, a multiple-antenna heating, ventilation and air conditioning (HVAC) system includes a first antenna disposed along a return airflow path from an enclosed space to the multiple-antenna HVAC system, where the multiple-antenna HVAC system supplies conditioned air to the enclosed space. The multiple-antenna HVAC system also includes a second antenna disposed outside the return airflow path. The multiple-antenna HVAC system also includes a controller in communication with the first antenna and the second antenna, where the controller wirelessly communicates via the first antenna and the second antenna.