Distributed HVAC Alarm Diagnostics via Data Bus Feedback
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Solution Overview
Problem
Conventional HVAC systems lack advanced control and data acquisition techniques, making them less flexible, more difficult to install and maintain, and less efficient in terms of energy use and diagnostic capabilities.
Innovation Solution
A distributed-architecture HVAC system with a data processing and communication network that uses a subnet controller, system devices, and a system status display to communicate via a data bus, allowing for error detection and alarm signaling, improving installation, operation, and maintenance through shared data and command capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If conventional HVAC systems are used, then basic temperature control is provided, but the system lacks advanced diagnostic capabilities and is difficult to maintain
Solution Approach 1:
The patent introduces a centralized controller as an intermediary that collects diagnostic data from all HVAC components via a data bus network. This mediator consolidates information from multiple sources (sensors, actuators, equipment) and presents it in a unified interface, making the complex system easier to diagnose and maintain without reducing the functional complexity of the HVAC system itself.
Solution Approach 2:
The system implements continuous feedback loops where sensors monitor HVAC component status and transmit data through the data bus to the controller. The controller analyzes this feedback information and provides real-time diagnostic alerts, enabling proactive maintenance and reducing the difficulty of system repair by immediately identifying issues before they escalate.
2Adaptability or versatility
If conventional HVAC systems are used, then basic operation is achieved, but installation and operation are less flexible
Solution Approach 1:
The patent segments the HVAC system into modular components (air handlers, furnaces, sensors, actuators) that can be independently controlled and monitored through the data bus network. This segmentation allows flexible configuration and adaptation to different building layouts and requirements while maintaining manageable system complexity through standardized communication protocols.
Solution Approach 2:
The system employs dynamic control capabilities where the controller can adaptively adjust HVAC component operation based on real-time environmental conditions, occupancy patterns, and equipment status. This dynamic adaptability allows the system to flexibly respond to changing requirements while the standardized data bus architecture prevents complexity from escalating.
3Use of energy by moving object
If conventional HVAC systems are used, then basic temperature control is provided, but energy efficiency is reduced
Solution Approach 1:
The patent implements energy-efficient operation through continuous feedback monitoring of temperature, humidity, and equipment status. The controller analyzes this feedback data and optimizes HVAC component operation to minimize energy consumption while maintaining comfort conditions. The data processing complexity is managed through automated algorithms that efficiently interpret sensor data and generate control decisions.
Solution Approach 2:
The system enables self-service energy optimization where the controller automatically adjusts HVAC operation based on real-time conditions without requiring manual intervention. The data bus network and processing algorithms work autonomously to identify energy-saving opportunities and implement control adjustments, reducing energy waste while keeping the data processing architecture manageable through standardized protocols.
Data Source
AI summary
The disclosure includes an HVAC data processing and communication network and a method of manufacturing the same. One embodiment of the network includes a subnet controller, a system device and a system status display. The subnet controller is configured to communicate via a data bus. The first system device is configured to communicate via a data bus. The system status display is associated with the first system device and configured to produce a visual signal when the first device detects an error or alarm condition.