Building Fault Detection Control With Autonomous BMS Correction
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Solution Overview
Problem
Existing building management systems lack automated fault detection and correction capabilities, requiring manual intervention and inefficient fault resolution processes.
Innovation Solution
A building management system with automated fault detection and diagnostics that includes a customizable rules editor, allowing users to define fault rules and adjust operational values to resolve faults automatically, maintaining an audit log of adjustments and providing user interfaces for monitoring and rule updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If automated fault correction is implemented, then fault resolution efficiency is improved, but system complexity increases
Solution Approach 1:
The system automatically detects faults, determines appropriate corrections, and executes adjustments without requiring manual intervention. The BMS performs self-diagnosis and self-correction by monitoring building parameters, comparing them against fault rules, and automatically adjusting equipment operational values to resolve detected faults.
Solution Approach 2:
The system pre-configures fault rules that define fault conditions and corresponding correction actions in advance. When a fault is detected, the predetermined correction protocol is automatically executed, eliminating the need for real-time human decision-making and speeding up the fault resolution process.
2Device complexity
If manual fault correction is used, then system complexity is reduced, but loss of time increases
Solution Approach 1:
The system continuously monitors building parameters and compares them against fault rules to detect faults. After automatic correction is applied, the system verifies whether the fault has been resolved by checking if the building parameter returns to the normal range, creating a closed-loop feedback mechanism that ensures effective fault resolution.
Solution Approach 2:
The patent replaces the mechanical process of manual fault detection and correction with an automated electronic system. The BMS uses software-based fault rules and automatic control algorithms to substitute human operators, significantly reducing fault resolution time while managing system complexity through programmatic approaches.
3Productivity
If automated fault correction is implemented, then productivity is improved, but device complexity increases
Solution Approach 1:
The fault correction system is segmented into distinct functional modules: fault detection (comparing building parameters against fault rules), correction execution (adjusting equipment operational values), and verification (checking if the fault is resolved). This modular segmentation manages complexity by organizing the automated system into manageable, independent components.
4Measurement precision
If continuous monitoring is performed, then measurement precision is improved, but use of energy increases
Solution Approach 1:
The system performs fault detection and correction operations periodically rather than continuously. The BMS monitors building parameters at scheduled intervals, executes fault rules when conditions are met, and verifies corrections at discrete time points. This periodic operation maintains adequate fault detection capability while reducing energy consumption compared to continuous monitoring.
Data Source
AI summary
The present disclosure relates to a BMS that includes processor(s) that execute instructions to obtain a fault rule related to a building parameter and determine that a fault has occurred based on the fault rule and initial BMS data indicating an initial value of the building parameter. The instructions cause the processors to perform an automatic fault correction process including increasing or decreasing an operational value of building equipment that operate to affect the building parameter by a preset interval, operating the building equipment using the increased or decreased operational value to affect the building parameter, and determining whether the fault was resolved. Responsive determining that the fault was not resolved, the instructions cause the processor(s) to repeat the automatic fault correction process until either the fault is resolved, or the operational value of the building equipment reaches a minimum or maximum value threshold.