HVAC Data Bus Privilege Control via Segmentation
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Solution Overview
Problem
Conventional HVAC systems lack advanced control and data acquisition techniques, leading to limitations in flexibility, installation ease, user operation, temperature and humidity control, energy efficiency, diagnostic capabilities, and maintenance efficiency.
Innovation Solution
A networked HVAC system with a data processing and communication network that includes a user interface, system devices configured to send and receive messages over a physical layer interface, and non-volatile memory for storing configuration data, enabling a privileged operating mode and facilitating advanced control and communication among components.
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 adaptability are limited
Solution Approach 1:
The HVAC system is divided into multiple independent functional modules including user interface module, system device module, data bus module, and control module. Each module can operate independently and communicate through standardized interfaces, enabling flexible reconfiguration and adaptation to different application scenarios while maintaining manageable system complexity through modular architecture.
2Measurement precision
If conventional HVAC control systems are used, then the operation is straightforward, but the temperature and humidity control precision is inadequate
Solution Approach 1:
The system implements closed-loop feedback control where sensors continuously monitor temperature and humidity parameters, compare them against setpoint values, and automatically adjust HVAC equipment operation. The control module receives real-time data from the data bus and modifies system operation to maintain precise environmental conditions, achieving high measurement precision while automating the control process to preserve ease of operation.
3Ease of repair
If conventional HVAC systems are used, then the device complexity is low, but the diagnostic capabilities and maintenance efficiency are insufficient
Solution Approach 1:
The data bus serves as an intermediary communication infrastructure that connects all system components including sensors, actuators, and control modules. This standardized communication medium enables centralized monitoring and diagnostic capabilities by allowing the control module to access real-time data from any system component, facilitating efficient fault detection and maintenance while managing system complexity through unified communication protocols.
4Use of energy by moving object
If conventional HVAC systems are used, then the energy consumption is moderate, but the energy efficiency is low
Solution Approach 1:
The control module dynamically adjusts HVAC system operation based on real-time environmental conditions, occupancy patterns, and equipment status received through the data bus. The system continuously optimizes temperature setpoints, equipment runtime, and energy distribution to maximize energy efficiency while adapting to changing conditions, managing control complexity through automated decision-making algorithms and real-time data processing.
Data Source
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 user interface and a system device. The user interface is configured to publish a privilege request message to a data bus. The system device is configured to receive messages via the data bus and to store configuration data in nonvolatile memory. The system device is further configured to enable a privileged operating mode not normally available to a user of the network in response to the privilege request message.