Unlock instant, AI-driven research and patent intelligence for your innovation.

Elevator running state evaluation system and method based on sound feature extraction

A technology of elevator running and sound features, which is applied in the field of elevator running state evaluation system based on sound feature extraction, can solve the problems that cannot be found in time, cannot reflect the real-time running state of the elevator, and achieve comprehensive analysis results

Pending Publication Date: 2021-06-04
ZHEJIANG SCI-TECH UNIV
View PDF9 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Regular maintenance can save a lot of manpower and material resources, but it will also lead to failure to find out in time when some faults occur in the elevator, leading to accidents
Moreover, the conventional regular maintenance method cannot reflect the current status of the real-time operation status of the elevator

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Elevator running state evaluation system and method based on sound feature extraction
  • Elevator running state evaluation system and method based on sound feature extraction
  • Elevator running state evaluation system and method based on sound feature extraction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 As shown, a functional block diagram of an elevator operating state evaluation system based on sound feature extraction described in this embodiment includes at least a sound acquisition unit, a human-elevator data separation unit, a human voice analysis unit, an elevator sound analysis unit and an alarm unit, The sound acquisition unit is used to collect and convert the original sound of the car and the original sound of the machine room and send it to the human-elevator data separation unit; the human-elevator data separation unit is used to separate the sound signal of the car into human voice data and car running sound data, and send The data is sent to the human voice analysis unit, and the car running sound data and the original sound of the machine room are sent to the elevator sound analysis unit; the human voice analysis unit is used to analyze the human voice data, and, based on the analysis result, output the first running state D1 to the alar...

Embodiment 2

[0044] The embodiment of the present invention also provides an elevator running state evaluation method based on sound feature extraction. Such as image 3 As shown, it is a flow chart of the elevator running state evaluation method based on sound feature extraction. combine figure 2 The elevator running state evaluation system shown is an explanation of the elevator running state evaluation method based on sound feature extraction.

[0045] The elevator operating state evaluation method based on sound feature extraction described in this embodiment specifically includes:

[0046] S1. Collect the sound signals in the elevator car and the machine room, and convert them into the original sound of the car and the original sound of the machine room respectively.

[0047] The sound signal is collected in real time through the pickup installed in the machine room and the car. The sound signal in the machine room and the sound signal in the car are converted by a cross-flow conv...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an elevator running state evaluation system and method based on sound feature extraction. The system comprises a sound collection unit, a human and elevator data separation unit, a human voice analysis unit, an elevator sound analysis unit and an alarm unit. The method specifically comprises the steps that S1, collecting and converting sound signals in an elevator car and a machine room into original sound of the elevator car and original sound of the machine room; S2, separating the original sound of the elevator car into elevator car operation sound data and human voice data; S3, analyzing the human voice data; S4, performing feature extraction on the original sound of the machine room and the elevator car operation sound data, and correspondingly outputting a machine room sound feature value and an elevator car sound feature value; S5, respectively analyzing the machine room sound feature value and the elevator car sound feature value; and S6, evaluating the elevator running state. Through real-time sound data acquisition, the passenger sound, the elevator car operation sound and the machine room sound are analyzed respectively, so that the elevator running state is comprehensively judged, and an elevator is maintained and personnel rescue is carried out in time.

Description

technical field [0001] The invention relates to the field of elevator safety and maintenance of passenger elevator components, in particular to an elevator running state evaluation system and method based on sound feature extraction. Background technique [0002] In today's era, with the steady advancement of urban modernization, the population is concentrated in more developed cities. However, the space in the city is limited, so high-rise buildings that can make full use of vertical space are a good choice. And as a large amount of high-rise buildings are put into construction and use, elevators have become an indispensable means of transportation for people's daily life. [0003] As a means of transporting passengers vertically up and down, elevators are an indispensable part in the construction of high-rise buildings. Generally speaking, buildings with more than seven floors require cab elevators. The most common passenger elevator is the traction elevator. Most peop...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B66B1/28B66B1/34B66B5/00
CPCB66B1/28B66B1/3461B66B5/0031B66B2201/403
Inventor 魏义敏李晖潘骏陈文华
Owner ZHEJIANG SCI-TECH UNIV