Elevator Door Vibration Profiling for Installation Quality Checks
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Solution Overview
Problem
Existing methods for evaluating the quality of elevator door installation or repair rely on subjective expert observation, leading to potential errors and lack automation in result transmission.
Innovation Solution
A method involving the measurement of elevator door vibrations during opening and closing, generating a vibration profile, comparing it to a reference value, and using this to objectively assess and automatically signal acceptance or rejection of the installation or repair.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If expert observation is used to evaluate installation quality, then human judgment can be applied, but subjectivity and manual errors occur
Solution Approach 1:
The patent replaces the mechanical/subjective expert observation system with an automated vibration measurement and analysis system. Sensors measure door vibration during operation, and signal processing algorithms objectively evaluate installation quality by analyzing vibration patterns, eliminating human subjectivity and improving both precision and reliability of quality assessment.
Solution Approach 2:
The system enables self-diagnosis and self-evaluation of installation quality through automated vibration analysis. The door system itself provides the measurement data through its natural vibration characteristics during operation, and the embedded evaluation algorithm automatically determines whether installation meets quality standards without requiring external expert intervention.
2Productivity
If manual inspection is used, then flexibility in evaluation is maintained, but automation and efficiency are reduced
Solution Approach 1:
The patent replaces manual inspection processes with automated vibration-based measurement and evaluation systems. Sensors continuously monitor door vibration during operation, and computer algorithms automatically analyze the data to determine installation quality, significantly improving inspection efficiency and enabling complete automation of result transmission to relevant systems.
Solution Approach 2:
The system implements automated feedback loops where vibration measurement data is continuously collected, analyzed, and used to automatically determine installation quality. The evaluation results are fed back to the installation process or maintenance systems, enabling automated decision-making and eliminating the need for manual inspection while maintaining high productivity.
3Measurement precision
If vibration measurement is performed multiple times, then data quality improves, but measurement time increases
Solution Approach 1:
The patent employs periodic vibration measurements during door operation, where the door is opened and closed multiple times in sequence to collect vibration data. By performing measurements during normal operational cycles rather than requiring extended dedicated testing, the system achieves high data quality while minimizing additional time loss during the commissioning process.
Solution Approach 2:
The system continuously collects vibration measurement data during each door opening and closing operation without interrupting the functional testing process. By maintaining continuous measurement throughout the commissioning activities rather than performing separate dedicated measurement sessions, the patent achieves accurate vibration profiles while minimizing time loss.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures consistent quality assessment with reduced human error and automated result reporting, enhancing reliability and efficiency in elevator door installation or repair processes.
Implementation Method 1
the vibration of the elevator door being measured
Data Source
Figure 1
AI summary
Method for installing or repairing an elevator door, comprising a first step in which the installation or repair is carried out on the elevator door, and a second step in which the installation or repair is checked before commissioning for general use. In the second step, the elevator door is opened and closed once or multiple times, in particular 2, 3, or 4 times, with the vibration of the elevator door being measured. A vibration profile, in particular an average vibration profile, is then created from the multiple opening and/or closing processes. The vibration profile is then compared with at least one comparison value. Depending on the comparison, a signal is output to accept or reject the installation or repair for general use.