Method and system for recognizing screen-door faults on basis of acquiring screen-door operation curves

A technology of running curve and screen door, applied in the field of screen door failure mode recognition, it can solve the problems of excessive action time, unfavorable features, and inability to sample, and achieve the effect of easy comparison

Active Publication Date: 2009-09-23
FANGDA INTELLIGENT INNOVATION TECH CO LTD
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Problems solved by technology

Obviously, for an array of sampling curves, the same feature point is drifting indefinitely, which is quite unfavorable for feature comparison.
[0008] In addition, even after selecting a fixed sampling time upper limit, if the action time exceeds the selected time upper limit after a fault occurs, the excess part will not be sampled.
[0009] Therefore, it is obviously a low-efficiency method to identify the normal operation / failure mode analysis mode of the screen door by adopting the method of collecting displacement at equal time

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  • Method and system for recognizing screen-door faults on basis of acquiring screen-door operation curves
  • Method and system for recognizing screen-door faults on basis of acquiring screen-door operation curves
  • Method and system for recognizing screen-door faults on basis of acquiring screen-door operation curves

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Embodiment Construction

[0032] Considering that the operating stroke of the shielded door is fixed, the stroke of the standard door is 1m, and the stroke of the non-standard door varies between 0.65-0.750m and 1.15-1.2m. Therefore, the present invention proposes a new acquisition method for the acquisition of the operating curve of the shielded door . The method of equal displacement acquisition time is adopted, that is, the method of t=f(ks), that is, the data of the running time of the shielded door is collected every time a fixed displacement is performed during the operation process of the shielded door during door opening or closing. Among them, s represents the displacement of the shielded door, K is the coefficient, and t is the running time of the shielded door.

[0033] Considering that the main speed of the door body motor driving the screen door is generally 0-0.5m / s, which belongs to low-speed motion, and the screen door generally adopts a DC brushless motor; coding. Therefore, we use t...

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Abstract

The invention discloses a method and a system for recognizing screen-door faults on the basis of acquiring screen-door operation curves, wherein the method comprises the following steps that: the running time data of a screen door in operation are sampled in an equal-displacement time-acquiring pattern; according to the operation characteristics of the screen door, the sampled data are classified, and the characteristic of each sampled datum is extracted; the root-mean-square error of the characteristic of each sampled datum and a characteristic sample is taken as a deviation distance of the sampled data; and if the deviation distance exceeds a preset value, the operation of the screen door is judged to break down, and fault category and the time-displacement information of the operation of the screen door when a fault appears are output. The equal-displacement time-acquiring mode selected by the invention is effective to the pattern recognition of the operation curves of the screen door.

Description

technical field [0001] The present invention relates to the identification technology of screen door failure mode, especially a method for collecting the operation curve of screen door by means of equidisplacement acquisition time data, and performing analysis and processing of the operation curve of screen door to carry out the method for identification of screen door failure mode and system. Background technique [0002] With the rapid development of the domestic subway industry, more and more screen doors are applied to the subway. The application of screen doors not only takes care of the safety of passengers, but also makes a great contribution to the energy saving of the air-conditioning system of the subway and the beauty of the platform. However, since the design life of the screen door system is 30 years, the daily maintenance of the screen door has become a subject. For example, after Tianjin Metro Line 1 was put into operation, there are a total of 22 stations, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M19/00E06B5/10B61B1/02G01M99/00
Inventor 胡海英
Owner FANGDA INTELLIGENT INNOVATION TECH CO LTD
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