The Rail Tank Car Detection System (RTCDS) of IGATEC GmbH recognises the 8-digit tank car numbers (RTC-no.) of passing rail tank cars.
In front of the loading station, 1 to 4 cameras and a junction box are installed per track (according to the customer’s recognition rate requirements).
An inductive wheel sensor (alternatively a light barrier) detects the rail tank cars when they enter the loading station. The locomotive is also detected, but not photographed.
The evaluation of the wheel sensor signal enables the correct acquisition of all RTCs (a distinction is made between 4-axle and 8-axle RTCs) as well as precise switching (triggering) of the camera to capture the images of the tank and/or chassis by the RTCDS.
The captured images are evaluated by an image processing computer using OCR-software (optical character recognition), which then checks the recognized numbers for plausibility using the check digit (check digit = the last digit of the RTC-no.).
The numbers are stored together with the file paths of the associated images in a database or transfer file. The operator has the possibility to check the recognized numbers again in a correction mask on the basis of these images and to adjust them if necessary.