Abnormity diagnosis system of passenger conveyer

A technology for passenger conveyors and abnormal diagnosis, which is applied to transportation and packaging, computer parts, instruments, etc., and can solve problems such as hindrances to maintenance work efficiency, undetermined causes, and difficulties

Active Publication Date: 2010-01-13
TOSHIBA ELEVATOR KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the technology disclosed in the aforementioned Patent Document 1, it is automatically determined whether there is an abnormality in the passenger conveyor, but the cause of the occurrence cannot be identified.
Therefore, there is a problem that when an abnormality is found in the passenger conveyor, maintenance personnel are required to go to the scene to investigate the condition of the passenger conveyor and determine the cause of the abnormality. It is also difficult to wait for necessary personnel and dispatch maintenance personnel to the site, which hinders the efficiency of maintenance work

Method used

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  • Abnormity diagnosis system of passenger conveyer
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  • Abnormity diagnosis system of passenger conveyer

Examples

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no. 1 example

[0017] figure 1 It is a schematic diagram showing a rough configuration of an abnormality diagnosis system to which the present invention is applied. Escalators that become objects of diagnosis, such as figure 1 As shown, it is supported by a truss 3 connected to the upper beam 1 and the lower beam 2 and erected between the upper and lower floors. A driving device 4 and a control panel 5 of the escalator are installed in the truss 3 on the side of the upper beam 1 . The drive device 4 is controlled by a control panel 5 and drives a drive sprocket 7 by a drive chain 6 . Also, in the truss 3 on the lower beam 2 side, a driven sprocket 8 paired with the drive sprocket 7 is provided, and a pedal chain 9 is wound between the drive sprocket 7 and the driven sprocket 8 . And its structure is: a plurality of pedals 10 are connected to this pedal chain 9, by using the driving device 4 to make the driving sprocket 7 rotate, the pedal chain 9 revolves between the driving sprocket 7 an...

no. 2 example

[0046] Next, a second embodiment of the present invention will be described. This embodiment is a modified example of the abnormality determination process performed by the calculation unit 22 of the diagnostic device 20 . Also, the configuration of the abnormality diagnosis system of this embodiment and the contents of processing other than the determination of the presence or absence of abnormality are the same as those of the above-mentioned first embodiment. The abnormal presence / absence determination process specific to the example will be described in detail.

[0047] Figure 6 and Figure 7 It is a figure explaining the outline|summary of the determination process of the presence or absence of an abnormality performed by the calculation part 22 of the diagnostic apparatus 20 in the abnormality diagnosis system of this embodiment.

[0048] In the present embodiment, when the calculation unit 22 of the diagnostic device 20 determines whether there is an abnormality, fi...

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Abstract

The invention provides an abnormity diagnosis system of passenger conveyer, which includes a mobile sound-collection device (15) and a fixed sound-collection device (17, 18) for collecting operation sound of escalator, and a data collection section (21) stored in a diagnostic equipment (20). A computation section (22) of the diagnostic equipment (20) computes the difference of sound data of escalator operation sound and reference data stored in the data collection section (21), and only the abnormal sound component of the escalator operation sound is abstracted. Farther, the arithmetic section (22) judges whether the maximum peak value P of the output waveform of abnormal sound component exceeds the prescribed threshold value Sh1 for determining abnormity. Farther, if an abnormity is judged to be existing, the arithmetic section (22) estimates the mutual relation between the frequency analysis result of data around the maximum peak value of the abnormal component and the preobtained abnormal audio rate pattern corresponding various abnormal reasons, and estimates abnormal reason according to the estimation result.

Description

technical field [0001] The present invention relates to an abnormality diagnosis system for diagnosing abnormalities of passenger conveyors such as escalators and moving walkways. Background technique [0002] Passenger conveyors such as escalators and moving walkways convey passengers riding on the steps by circularly moving a plurality of steps connected in a loop along guide rails arranged inside the truss. Once this kind of passenger conveyor breaks down, it often takes a lot of time to restore it. Therefore, once it breaks down, it will cause great trouble to the user. Therefore, it is hoped that the abnormality can be detected early at the stage when any abnormality occurs before the failure occurs, so that the abnormality can be eliminated through maintenance to avoid failure. [0003] Against such a background, Japanese Patent Application Laid-Open No. 2007-8709 (Patent Document 1) proposes a scheme in which a diagnosis device with an acceleration sensor or a microp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B29/00B66B27/00
CPCB66B25/006G06K9/00771G06V20/52
Inventor 首藤正志樱井正树武田泰明
Owner TOSHIBA ELEVATOR KK
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