Escalator step inspection device and inspection method

JP7863498B2Active Publication Date: 2026-05-21HITACHI BUILDING SYST CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
HITACHI BUILDING SYST CO LTD
Filing Date
2022-12-19
Publication Date
2026-05-21

AI Technical Summary

Technical Problem

Existing escalator inspection methods rely on visual inspection by workers, which is labor-intensive, prone to oversight, and subjective, making quantitative assessment difficult, especially for conditions like the gap between steps and presence of rust, deformation, or components such as bolts and washers.

Method used

An escalator step inspection device and method that uses an imaging unit to photograph the step frame through the gap between adjacent steps and an analysis unit to extract and determine the condition of the step, including detection of gaps, rust, and presence of components like bolts and washers, using image processing and analysis.

Benefits of technology

Enables objective and quantitative detection of the gap and condition of escalator steps, reducing worker load, minimizing oversight, and improving inspection accuracy and safety by automating the process.

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Abstract

To provide an inspection device and an inspection method for an escalator step capable of detecting the gap state between adjacent two steps.SOLUTION: An escalator step inspection device 1 to grasp the state of steps 11 of an escalator 10 has an imaging unit 2 and an analysis unit 3, where the imaging unit captures the steps 11 at a position where step frames 13 of the steps 11 can be seen through the gap between adjacent two steps 11, a first step 11A and a second step 11B; and the analysis unit extracts the inspection targets existing in the region from a first demarcation 12A, which is a demarcation 12 of the first step 11A, to a second demarcation 12B, which is the demarcation 12 of the second step 11B and is adjacent to the first demarcation 12A, from an image taken by the imaging unit 2, and determines the state of the steps 11.SELECTED DRAWING: Figure 2
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