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Elevator door fault detection method based on audio characteristics

A fault detection and audio feature technology, applied in the field of elevator door fault detection, can solve problems such as high cost, judgment rule load, and small scope of application

Inactive Publication Date: 2021-03-12
ZHEJIANG NEW ZAILING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The system is composed of data distribution layer, data transmission layer, data processing layer and distributed coordination service components, which can distribute, transmit, analyze and fragment large-scale flow data of elevators, involving various sensors and complex decision algorithms, cost High and judging the rule load, the scope of application is small

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  • Elevator door fault detection method based on audio characteristics
  • Elevator door fault detection method based on audio characteristics
  • Elevator door fault detection method based on audio characteristics

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Embodiment Construction

[0023] In order to more clearly describe the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

[0024] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments cannot be repeated here, but the embodiments of the present invention are not limited to the following embodiments.

[0025] like figure 1 As shown, the present invention provides a method for detecting faults in elevator doors based on audio features, including S1, collecting video streams during the running period of the elevator, and obtaining audio signals therein; S2, preprocessing the a...

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Abstract

The invention relates to an elevator door fault detection method based on audio characteristics. The method comprises the following steps of S1, acquiring a video stream in an elevator running period,and acquiring an audio signal in the video stream; S2, preprocessing the audio signal; S3, receiving the preprocessed data, and extracting data characteristics; S4, taking the data characteristics asa learning target, adaptively selecting an anomaly detection model or a supervised learning model for training according to the size of the existing data volume, and updating the detection model in real time; and S5, inputting the data characteristics into the updated detection model, giving a fault probability threshold by the detection model, and determining whether to give a fault alarm or notaccording to the fault probability threshold. The elevator door fault detection method based on the audio characteristics is low in cost and wide in application range.

Description

technical field [0001] The invention belongs to the technical field of elevator door fault detection. Background technique [0002] The most frequent contact in our work and life is the passenger elevator, and its safe operation is directly related to the personal safety of the passengers. According to statistics, more than 80% of elevator failures and more than 70% of elevator accidents are caused by problems with the elevator door system. Once the door system fails, it will affect the normal operation of the whole machine, and even cause casualties to passengers. Therefore, it is very important to accurately identify the door state during the operation of the elevator to ensure the safe operation of the elevator, and it can provide technical support for the identification and fault diagnosis of potential safety hazards of the elevator. [0003] According to the existing technology, although it is possible to detect whether the door state is abnormal during the operation ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/02B66B5/00G06N3/04G06N3/08G06N20/00G10L15/16G10L21/0208
CPCB66B5/0031B66B5/02G06N3/04G06N3/088G10L15/16G10L21/0208G06N20/00
Inventor 钟超文万敏蔡巍伟靳旭哲
Owner ZHEJIANG NEW ZAILING TECH CO LTD