| 摘要 |
The invention relates to a measurement system (1) that can be used to check the section of a contact wire (FC) for an overhead power line for vehicles, in particular those travelling on a railway track, comprising: a light source (2) which illuminates the contact wire; at least two cameras (31, 32) which each record an image of the contact wire, each camera being associated with a co-ordinate that can be used to deduce the relative position of the cameras; calculation means (40) which produce a three-dimensional model of the contact wire using a stereovision-based evaluation of the images from the cameras and on the basis of the relative position of said cameras; and measurement means (41) designed to extract a cross-section of the contact wire from the three-dimensional model and to compare the surface area (SR) of the cross-section with a reference surface area (S0) in order to check the value of the surface area of the section of the contact wire (FC). The invention is suitable for use in the field of railway safety. |
