HVAC Node Messaging with Segmented Data Tags for Compatibility
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Solution Overview
Problem
Existing refrigerating-and-air-conditioning systems face challenges in efficiently sharing processes among different models due to variations in data types and types of refrigerating-and-air-conditioning units, leading to compatibility issues and increased development time for data tag definitions.
Innovation Solution
A communication method and system that uses data tags independently defined for different types of refrigerating-and-air-conditioning units, allowing messages to be transmitted between nodes with compatible data tags, and ignoring unknown tags to ensure compatibility and reduce development time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If data tags are commonly used for all refrigerating-and-air-conditioning units regardless of type, then communication compatibility is improved, but development time and complexity increase due to needing to define tags for all possible unit variations
Solution Approach 1:
The patent segments data tag definitions by unit type (indoor units, outdoor units, centralized control devices) and by communication context (refrigerant control, centralized control). Each segment has its own tailored data tag definitions, avoiding the need to create comprehensive tags for all possible unit variations while maintaining compatibility within each segment.
Solution Approach 2:
The patent applies local quality by defining data tags with meanings and formats that are specific to each unit type and communication context. For example, data tags for indoor units have different definitions than those for outdoor units, and tags for refrigerant control differ from those for centralized control, optimizing each local context rather than using a universal tag set.
2Productivity
If data tags are defined independently for different communication contexts (refrigerant control, centralized control), then processing efficiency is improved by avoiding unnecessary tag processing, but communication protocol complexity increases
Solution Approach 1:
The patent segments the communication protocol into distinct contexts (refrigerant control, centralized control) with independently defined data tags for each. This segmentation allows each context to use only the tags relevant to its function, improving processing efficiency by avoiding unnecessary tag interpretation while the modular structure manages the overall protocol complexity.
Solution Approach 2:
The patent applies partial action by having communication nodes process only the data tags that are relevant to their specific function and context. Nodes ignore tags they do not recognize or that are not applicable to their operation, reducing processing overhead while the complete tag set remains available for different contexts.
3Reliability
If all communication nodes process all received data tags regardless of relevance, then communication reliability is improved by ensuring all data is handled, but processing time and bandwidth usage increase
Solution Approach 1:
The patent implements partial processing where communication nodes selectively process only the data tags that are relevant to their specific unit type and communication context. Nodes ignore tags they do not recognize or that are not applicable to their operation, reducing processing time and bandwidth usage while maintaining reliability for the tags that are actually processed.
Solution Approach 2:
The patent extracts and processes only the necessary data tags from the communication messages, separating relevant tags from irrelevant ones. This extraction approach ensures that each node handles only the data it needs, reducing processing time while maintaining communication reliability for the extracted relevant information.
Data Source
AI summary
A communication method communicates messages related to refrigerating-and-air-conditioning related units among a plurality of communication nodes. The communication method includes allowing a first communication node to generate a message including data indicating values related to operations or states in the plurality of refrigerating-and-air-conditioning related units that vary from each other in type and a data tag indicating an attribute of the data, and to transmit the generated message to a second communication node. The first communication node includes a first CPU and a first transceiver integrated circuit. The second communication node includes a second CPU and a second transceiver integrated circuit.