Non-contact pantograph-catenary contact force measuring method and device

A non-contact, measurement method, applied in the direction of measuring the force of change in optical properties of materials when they are stressed, can solve the problems of incomplete reflection of elastic force, disadvantageous cost savings, etc., and achieve efficient extraction of light strip displacement. Accuracy, high pressure accuracy, the effect of reducing equipment cost
CN112213008APending Publication Date: 2021-01-12CHENGDU TANGYUAN ELECTRICAL APPLIANCE
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
CHENGDU TANGYUAN ELECTRICAL APPLIANCE
Publication Date
2021-01-12

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Abstract

The invention relates to the field of rail transit pantograph-catenary relationship detection, in particular to a non-contact pantograph-catenary contact force measurement method and device. The method comprises the following steps: acquiring a target image comprising a first target arranged on the side surface of a carbon slide plate and a second target arranged on the side surface of a top tubeof an upper frame; extracting a first light bar pixel corresponding to the first target and a second light bar pixel corresponding to the second target from the target image, and calculating a first elastic force of a first position according to a distance difference between the first light bar pixel and the second light bar pixel; calculating a second elastic force of a second position on the same side as the first position according to the lever principle and the first elastic force; summing the first elastic force and the second elastic force, and adding inertia force and aerodynamic forceto serve as bow net contact force. Compared with conventional contact pressure sum calculation and non-contact pressure sum calculation of multiple sets of targets, the method has the advantage that the equipment cost is remarkably reduced.
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Description

technical field

[0001] The invention relates to the field of pantograph-catenary relationship detection in rail transit, in particular to a non-contact pantograph-catenary contact force measurement method and device. Background technique

[0002] The electric locomotive obtains electric energy through the sliding contact between the pantograph slide plate and the catenary wire. When the moving pantograph passes through the relatively static catenary, the catenary is disturbed by external force, so the contact between the pantograph and the catenary There is a dynamic interaction between the two systems, and the pantograph-catenary system produces a specific form of vibration. When the vibration is severe, it can cause the pantograph slide plate to be out of contact with the contact wire, forming an off-line, generating arcs and sparks, accelerating the insulation damage of electrical appliances, causing electromagnetic interference to communication, and more seriously, direc...

Claims

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