Building automation system with automated sequencing for managerless twinning and method thereof
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Solution Overview
Problem
Conventional building management systems relying on manager-subordinate algorithms face challenges when the manager unit loses communication with subordinate units, leading to inefficiencies and potential system failures.
Innovation Solution
Implementing a managerless twinning control system where units share parameters and operate independently to synchronize operations, allowing for automatic addition or removal of capacity based on building load changes or unit functionality loss, using peer-to-peer communication and shared parameters like duct pressure and reliability data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manager-subordinate algorithms are used in building management systems, then centralized control is achieved, but system reliability deteriorates when the manager unit loses communication with subordinate units
Solution Approach 1:
The system divides the building management into independent peer units that each operate autonomously. Instead of one central manager controlling all subordinate units, each unit becomes an independent decision-maker that can function without continuous communication with others, eliminating the single point of failure in the manager unit.
Solution Approach 2:
Each peer unit in the twinned configuration performs self-service by independently making control decisions based on shared parameters. The units self-regulate their operation without requiring constant manager intervention, allowing the system to maintain reliability even when communication is lost.
2Reliability
If managerless twinning control is implemented, then system redundancy and reliability improve, but control complexity increases due to peer-to-peer synchronization requirements
Solution Approach 1:
The patent merges the control functions of multiple peer units into a coordinated system where all units share common parameters and operate in sync. By combining their capabilities while maintaining independence, the system achieves redundancy without requiring complex hierarchical management structures.
Solution Approach 2:
All peer units are placed on equal footing with identical capabilities and authority. Each unit has the same access to shared parameters and the same ability to make control decisions, eliminating the need for complex manager-subordinate relationship management and simplifying the synchronization protocol.
3Productivity
If conventional manager-subordinate control is used, then system architecture is simpler, but productivity decreases when communication failures occur
Solution Approach 1:
The peer units are pre-configured with the capability to independently make control decisions and share parameters autonomously. This preliminary setup ensures that when communication failures occur, the units can immediately continue operation without waiting for manager reconfiguration or recovery, minimizing downtime.
Data Source
AI summary
A method of and systems for staging units in a building management system (BMS) determines a next unit of the plurality of units to add to or remove from contributing to the environmental operation in each controller of the number of units in the BMS. The systems or methods also can determine in each controller of the units if a respective unit for the controller is the next unit, and changing an operational mode of the respective unit if the respective unit is the next unit. The systems and methods can implement managerless twinning control.