Distributed HVAC Alarm Network with Decoupled Diagnostics
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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 temperature and humidity control, with limited diagnostic capabilities and energy efficiency.
Innovation Solution
A distributed-architecture HVAC system with a data processing and communication network that includes system devices, subnet controllers, and user interfaces, allowing for advanced communication and control of HVAC components via a data bus, enabling improved installation, operation, and diagnostics, as well as superior temperature and humidity control and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional HVAC systems are used, then the system structure is simple, but the flexibility and ease of installation are poor
Solution Approach 1:
The HVAC system is divided into multiple independent functional modules including temperature control modules, humidity control modules, air quality control modules, and communication modules. Each module can be independently configured and installed, allowing flexible system assembly and easier installation while maintaining system functionality.
2Ease of repair
If conventional HVAC systems are used, then the system is easier to manufacture, but diagnostic capabilities are limited
Solution Approach 1:
A data bus serves as an intermediary communication network connecting all HVAC components. This data bus enables bidirectional communication between control devices, actuators, and sensors, allowing comprehensive system monitoring and diagnostics without significantly increasing manufacturing complexity.
Solution Approach 2:
The system incorporates feedback mechanisms where sensors continuously monitor system parameters and communicate status information through the data bus to control devices. This enables real-time diagnostic capabilities and system optimization while maintaining manageable complexity through standardized communication protocols.
3Productivity
If conventional HVAC systems are used, then the control mechanism is simple, but temperature and humidity control efficiency is poor
Solution Approach 1:
The control mechanism transitions from static on/off control to dynamic continuous control. Control devices receive real-time data from sensors through the data bus and continuously adjust actuator positions and operational parameters to optimize temperature and humidity control efficiency while managing complexity through adaptive control algorithms.
4Use of energy by moving object
If conventional HVAC systems are used, then the system has fewer components, but energy efficiency is limited
Solution Approach 1:
Energy efficiency is improved through feedback control where sensors monitor system performance and communicate with control devices via the data bus. The control devices use this information to optimize operational parameters, reduce energy consumption, and coordinate between different system components while the communication network manages complexity through efficient data exchange protocols.
Data Source
AI summary
The disclosure provides an HVAC data processing and communication network and a method of manufacturing the same. In one embodiment, the HVAC data processing and communication network includes a system device, a subnet controller and a user interface. The system device is configured to receive a control message from a data bus and operate according to a control setting communicated thereby. The system device is further configured to generate an alarm message in the event that the device enters an alarm state in response to an alarm condition. The user interface is configured to receive the alarm message and display alarm information in response to the message. The subnet controller is configured to provide operational control of the system device via the control message. The operational control is decoupled from the alarm message.