HVAC Data Bus Diagnostics for Flexible Distributed Control
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Solution Overview
Problem
Conventional HVAC systems lack advanced control and data acquisition techniques, making them inflexible, difficult to install and maintain, and less efficient in temperature and humidity management.
Innovation Solution
A networked HVAC system with a data bus that allows components to communicate and share identity, capability, status, and operational data, enabling more flexible installation, easier operation, superior control, and improved energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional HVAC systems use basic thermostat control, then the system structure is simple, but the system lacks flexibility and advanced control capabilities
Solution Approach 1:
The patent implements a universal data bus communication protocol that enables all HVAC components (thermostat, air handlers, furnaces, compressors) to communicate through a standardized interface. This multi-functional communication framework allows the system to adapt to various configurations and control strategies without requiring separate communication protocols for different device types, thereby increasing system flexibility while maintaining structural simplicity.
Solution Approach 2:
The system employs dynamic device status vectors that are continuously updated and transmitted over the data bus, allowing real-time adaptation of system operation based on current component availability and performance. This dynamic information exchange enables flexible reconfiguration of system operation without physical structural changes, resolving the contradiction between adaptability and structural complexity.
2Ease of operation
If conventional HVAC systems lack data acquisition techniques, then the system is easier to manufacture, but the system is difficult to install and maintain
Solution Approach 1:
The patent implements self-diagnostic capabilities where each device automatically generates and transmits status vectors containing operational data and fault information over the data bus. This self-service approach eliminates the need for manual diagnostics during installation and maintenance, allowing technicians to easily identify and troubleshoot issues through automated data collection, thereby improving ease of operation without significantly increasing system complexity.
Solution Approach 2:
The system continuously collects and transmits feedback data through the data bus, providing real-time information about device status and system performance. This feedback mechanism simplifies installation and maintenance by enabling automated monitoring and diagnosis, reducing the complexity burden of the communication network through intelligent data utilization.
3Productivity
If conventional HVAC systems lack communication capabilities, then the system has fewer components, but the system is less efficient in temperature and humidity management
Solution Approach 1:
The patent replaces traditional mechanical control methods with electronic data communication over a digital bus. Instead of complex mechanical linkages and analog signaling, the system uses standardized digital status vectors to coordinate temperature and humidity control across multiple devices. This substitution dramatically improves management efficiency while adding minimal physical complexity, as the communication infrastructure shares existing electrical wiring.
Data Source
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AI summary
The disclosure provides an HVAC data processing and communication network and a method of manufacturing the same. In an embodiment, the network includes a system device and a subnet controller. The system device is adapted to provide a service and publish a message including a device status vector representing an availability of the system device to provide the service. The subnet controller is adapted to receive the message from the system device including the device status vector via a data bus.