Method and device for measuring catenary wire wear based on multi-channel camera

Abstract

The invention relates to the field of contact network rigid-lead-wire measurement of subway systems in urban rail transit, and particularly to a contact network lead-wire wear measurement method and device based on multi-channel cameras. In a solution, the n-channel cameras correspondingly collect n contact network lead-wire images of bottoms of contact network lead-wires in different pull-out value interval ranges; p maximum communicated lead-wire areas including L1, L2 and L3, p boundary positions E1 and p boundary positions E2 are correspondingly separated from the n contact network lead-wire images; p threshold images T(x, y) are obtained on the basis of threshold processing of the n maximum communicated lead-wire areas; the p threshold images T(x, y) are respectively and correspondingly combined with the p boundary positions E1 and the p boundary positions E2 according to the characteristics of the communicated areas to obtain p pieces of position information of L1, L2, and L3; same-contact-network lead-wire position information is fused for obtaining position information of optimum L1, L2 and L3; and position information of optimum L2 is utilized for calculating lead-wire wear values d.

Description

technical field [0001] The invention relates to the field of metro system catenary rigid wire measurement in urban rail transit, in particular to a multi-camera-based catenary wire wear measurement method and device. Background technique [0002] In the electrified railway, the electric locomotive obtains electric energy from the catenary through the pantograph, and the contact line is deformed, vibrated and caused alternating stress changes, locomotive running mode, current intake state and other factors to wear the contact line, when the wear surface When it reaches a certain level, it will lead to disconnection. [0003] During the running of the train, the current is taken through the sliding contact between the pantograph slide plate and the contact wire. To make the pantograph receive current well, it is necessary to ensure reliable contact between the pantograph slide plate and the contact wire, which requires a certain contact pressure between the pantograph and the...

AI Technical Summary

Problems solved by technology

The rigid suspension busbar has no elasticity and is used to counteract the lifting force of the pantograph. It suddenly appears with the lifting force of the pantograph on the contact suspension, so that the impulse of the pantograph lifting force to the contact suspension is relatively large. Thus the wear of the contact wire is greater

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