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US 9,309,089 B2Granted
Fault diagnosis of an elevator installation
AssigneeInventio AG
InventorsMirco Annen, Thomas Neuenschwander, Christian Studer, Hans Kocher
Life of this patent
Estimating the term…
Abstract
An elevator installation includes a sensor by which vibrations generated during operation of the elevator installation are detectable and an evaluating circuit, which is connected with the sensor and by which the vibrations detected by the sensor can be evaluated. The detected vibrations can be compared by means of the evaluating circuit with a predeterminable operating value and a predeterminable threshold value.
Claims10
An elevator installation, comprising:
- a sensor that detects vibrations generated during operation of the elevator installation;
- and
- an evaluating circuit, connected to the sensor, that compares the detected vibrations with a predeterminable operating value and with a predeterminable threshold value, wherein the evaluating circuit calculates a quality characteristic based on the comparisons of the detected vibrations with the predeterminable operating value and with the predeterminable threshold value, the quality characteristic being further based on a ratio between a time period in which the predeterminable threshold value is reached or exceeded and a time period in which the predeterminable operating value is reached or exceeded.
An elevator installation operation method, comprising:
- detecting, using a sensor, vibrations generated during operation of an elevator installation;
- and
- evaluating the detected vibrations using an evaluating circuit connected with the sensor, the evaluating comprising comparing the detected vibrations with a predeterminable operating value and with a predeterminable threshold value, further comprising calculating, using the evaluating circuit, a quality characteristic from the comparison of the detected vibrations with the predetermined operating value and with the predetermined threshold value, the calculating the quality characteristic comprising determining a ratio between a time period in which the predeterminable threshold value is reached or exceeded and a time period in which the predeterminable operating value is reached or exceeded.
Dependencies are inferred from the claim text.