Building Equipment Availability Checking via Frequency Deviation Analysis
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Solution Overview
Problem
Existing methods for monitoring the availability of technical equipment in buildings fail to reliably detect operational disturbances and impairments in a timely manner, leading to potential safety risks and reduced convenience.
Innovation Solution
A method and device for automatic availability checking of technical equipment, which involves testing the equipment under specific conditions by comparing registered reactions with target reactions, using estimated and measured values for the frequency of procedure performance to determine availability, and adapting these values iteratively based on observed changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous testing of technical equipment is performed to ensure availability, then reliability of detection improves, but device complexity and loss of time increase
Solution Approach 1:
The monitoring system continuously receives state data from technical equipment and compares it with target states. When deviations are detected, the system automatically initiates diagnostic tests and provides feedback to adjust monitoring intensity, creating a closed-loop system that improves reliability without requiring continuous full-scale testing
Solution Approach 2:
The system performs preliminary monitoring of state data before initiating comprehensive tests. By detecting early signs of deviation in operational parameters, the system can trigger targeted diagnostic tests only when necessary, reducing overall system complexity while maintaining high detection reliability
2Reliability
If frequent tests are conducted to detect operational disturbances early, then reliability improves, but loss of time and productivity decrease
Solution Approach 1:
The system implements periodic monitoring cycles where state data is continuously collected during normal operation, and comprehensive diagnostic tests are performed periodically or event-driven. This alternating pattern ensures early disturbance detection while minimizing interruptions to equipment productivity
Solution Approach 2:
The system performs partial monitoring of critical state parameters during normal operation rather than complete system shutdowns for testing. Only when deviations are detected does the system initiate full diagnostic tests, reducing time loss while maintaining reliable detection capability
3Ease of operation
If state data from control systems is monitored to assess availability, then ease of operation improves, but measurement precision deteriorates
Solution Approach 1:
The system introduces an intermediary analysis layer that processes raw state data from control systems. This intermediary layer applies diagnostic algorithms and comparison logic to transform simple state readings into precise availability assessments, maintaining ease of operation while improving measurement precision
Solution Approach 2:
The system replaces manual availability assessment with automated electronic analysis of state data. The electronic processing system precisely compares actual state data with target states using computational algorithms, achieving high measurement precision while maintaining operational simplicity through automation
4Productivity
If tests are performed only when state data deviates from target values, then productivity improves, but reliability of detection may worsen
Solution Approach 1:
The system performs preliminary analysis of state data trends and patterns before triggering tests. By detecting subtle deviations and anomalies in operational parameters before they manifest as clear failures, the system initiates tests proactively, maintaining high detection reliability while avoiding unnecessary testing during normal variations
Data Source
AI summary
The method serves for automatic checking of the availability of technical equipment which is arranged in or at a building and executes at least one repeatable procedure, and comprises the following steps. There is determined at least one estimated value (NS(i,t)) for the frequency of the performance of the procedure for a first time period and/or second estimated value (NS(i,t+Δt)) for the frequency of the performance of the procedure for a second time period. A measured value Nm(i,t)) for the frequency of the performance of the procedure for the first time period is determined and the measured value is compared with at least one of the estimated values (NS(i,t), NS(i,t+Δt)). If the measured value (Nm(i,t)) is smaller by a predetermined amount (NS(i,t)−Nmin(i,t), ΔNs) than the respective estimated value (NS(i,t), NS(i,t+Δt)) at least one test of the technical equipment is carried out, in which test at least one reaction of the technical equipment is registered and compared with a target reaction, wherein in the case of availability of the technical equipment the reaction corresponds with the target reaction.