Handrail inspection system and handrail inspection method

Abstract

PROBLEM TO BE SOLVED: To provide a handrail inspection system and inspection method capable of highly accurately detecting a signal caused by deterioration in the initial stage of the deterioration by discriminating between the signal caused by the deterioration and the signal caused by a fixed structure and capable of easily specifying the position of the deterioration in a handrail.SOLUTION: The handrail inspection system includes a magnetic sensor and a data processing device. The data processing device includes a marker recognition part, a fixed structure recognition part, a signal position division part which divides signal data into a plurality of ranges on the basis of the position of the signal of a marker and the position of the signal of the fixed structure, a signal determination part which determines the deterioration of the handrail, and a display part which displays the determination result. The signal determination part performs the determination processing of the deterioration of the handrail on the basis of a decision criterion set for each divided range and the display part displays the signal data, the determination result, and the divided ranges.SELECTED DRAWING: Figure 2

Description

technical field [0001] The present invention relates to a handrail inspection system and a handrail inspection method of passenger conveyors (escalators, moving walks, etc.). Background technique [0002] In the passenger conveyor, steps on which passengers ride are connected in a ring shape (annular shape) and are rotationally driven. In order to prevent passengers from falling, there are also handrails for passengers to hold on to, and they are driven to rotate in conjunction with the steps. The armrest is made up of several parts. Specifically, the surface of the handrail is composed of a protective layer (protective rubber) made of a resin material (urethane, rubber, etc.), and a member called a tensile body for maintaining the strength of the handrail is provided inside the protective layer. In addition, below it, a fixing part for fixing the protective layer and a sliding part which slides on the surface of the frame on which the armrest is installed when the armrest...

AI Technical Summary

Problems solved by technology

For the noise contained in the measurement signal, the noise removal process is effective for the noise with weak signal strength, but the noise depends on the noise of the measurement device, and the noise removal process is not necessarily effective.

[0011] (2) Influence of established structure

[0014] Further, as mentioned above, the deterioration of the handrail starts from the twist of the steel cord, but since the signal caused by the twist detected using the magnetic sensor is generally weaker than the signal caused by the broken wire, there is an initial stage of deterioration that is difficult to detect subject

[0015] In this way, the main reason why it is difficult to detect the deterioration of the armrest using a magnetic sensor with high precision is that the detection signal includes signals caused by noise and a predetermined structure in addition to the signal caused by the deterioration, and it is difficult to easily detect them, for example. Differentiate based on signal strength

The above-mentioned Patent Document 1 does not sufficiently discuss all the problems of the above-mentioned (1) to (3)

Images