Self-configuring multiple-antenna system
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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 that includes a first antenna along the return airflow path and a second antenna outside the airflow path, with a controller that wirelessly communicates via both antennas to search for and connect to non-mesh and mesh connection points, facilitating self-configuration and improved wireless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single antenna is used for wireless communication, then the device complexity is reduced, but the reliability of wireless connection is worsened due to physical barriers and distance
Solution Approach 1:
The wireless communication system is segmented into multiple independent antenna units (first antenna along return airflow path, second antenna outside airflow path). Each antenna can independently search for and connect to wireless networks, allowing the system to overcome physical barriers by using different spatial paths for communication.
2Ease of operation
If manual configuration of wireless connections is required, then the ease of operation is worsened, but the adaptability of the system is improved
Solution Approach 1:
The HVAC system performs self-configuration of wireless connections autonomously. The controller automatically searches for available wireless networks using both antennas, evaluates connection quality, and establishes connections without requiring user intervention. This self-service capability simultaneously improves ease of operation and maintains adaptability through automatic network selection.
Solution Approach 2:
The system performs preliminary scanning and evaluation of wireless networks before establishing connections. The controller proactively searches for available networks and assesses their suitability, preparing connection options in advance before finalizing the wireless configuration.
3Adaptability or versatility
If the HVAC system connects to distant or obstructed wireless networks, then the adaptability is improved, but the communication quality is worsened
Solution Approach 1:
Different antennas are positioned in locations with different local communication qualities. The first antenna is placed along the return airflow path (typically inside the building), while the second antenna is positioned outside the airflow path (potentially with different line-of-sight characteristics). The system evaluates and selects the antenna providing better local communication quality for each wireless connection.
Solution Approach 2:
The system adds a spatial dimension to wireless communication by using multiple antennas at different physical locations and orientations. This dimensional approach allows the system to access wireless networks that may be obstructed or distant from one antenna by utilizing the alternative spatial path provided by another antenna.
Data Source
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.