INTRODUCTION OF [OCSinnect].
I’d like to introduce you the ongoing experimentation on the tramway of Dijon for the connected sensor [OCSinnect].
[OCSinnect] is an accelerometer which measure the vibration hit linked to the acceleration in « g » during pantograph’s passing below the section insulator (mini 1g ; maxi 16g).
[OCSinnect] been installed on one GALLAND’s section insulator, and also on a new model of section insulator by ALSTOM.
I insist on the experimental character of the test because the coming weeks will consist in finding the good interpretation of the registered measurements by the sensor.
My aim is typically to restitute an information which may be used by the operator in order to find good advantages in managing the maintenance of the line. I mean to define together the alarms set points which could justify a new adjustment on the section insulator.
Today, by experience, people who gravite towards section insulators (manufacturers, engineerings, rail contractors, operators) are in capacity to determine by comparison when the sound of the hit given by the pantograph is normal (panto slides below SI), or with a too high hit noise level (panto hits, rebounds through section insulator).
Since two weeks I am currently analysing the linear acceleration on X,Y,Z axis, with in parallel, regular visits on site to try confronting, first, what I can see and hear when the train crosses the SI, and second, the value stored by [OCSinnect]. Today I can say that it is possible to juxtapose the two informations.
But it does not feel like a victory because only the long term will allow to make of [OCSinnect] a reliable and helpful solution for the users :
- Scrutinize and supervise the overhead lines ;
- Plan site inspection on section insulator’s adjustment ;
- Accompany the first installation to get confirmation of the right installation and adjustment.
As I explained in my introduction, the experimentation is started, but I will obtain a more accurate restitution if several rail overhead lines operator would be ready to duplicate the field test with the tramway of Dijon in France. The photographs demonstrate that there is no risk in installing [OCSinnect] on section insulators. Therefore I expect to receive your questions in order to consider how to progress together on this project.