Wagon Type Classification¶

As mentioned in the Measurements section, the system is able to group measured axles into cars (wagons / locomotives). To be able to do this, the algorithm needs to be fed information about the car type. The most important information is the distance between the axles.

To find the required measurements for a car type you can either find a drawing or physically measure the train by hand. The distances are named d0-dn depending on the amount of axles the type has. The illustration belows shows an example of a 4-axle wagon:

The distance is measured in metres. The first distance, d0, is always 0.0m.

Other information about the type can be entered as well. An entry for a 4 axle wagon could look like this:

Car types can be defined well in time before the system is even installed. In that case AMTAB will input the information to the system during installation, meaning the wagons and locomotives will be detected from day 1.

To make this process easier, AMTAB provides an Excel template which can be used to input all known types: AMTAB Template Loco Wagon Axle Distance Table Rev. 230828-1.xlsx.

There are some limits to the method available for classifying car types:

• Two or more types with similar distances can be challenging for the system to differentiate between. It’s possible to adjust the tolerance the algorithm uses to match measured distances with defined distances (GUI -> Algorithm Settings), but that can lead to other issues. In these situations the most common solution is to group several car types into one. Contact AMTAB Support for further guidance.

• The classification algorithm is able to classify the types of wagons and locomotives, not individual identification. An RFID Reader can be paired with the system to provide identification.