Levira, an IT and communication company from Estonia, sought to develop a system for one of its clients to track the location of their goods wagons. On stations, it was essential to know the exact track each wagon was on, while outside stations, a GPS location would suffice.
The challenge was to develop a system that could accurately track the wagons at stations while also providing GPS-based location data between loading and unloading points. The GPS systems needed to transmit wagon positions four times a day for three years, utilizing Levira's LoRa network.
We implemented the solution by installing RFID readers between the tracks. Small industrial PCs controlled the direction-sensitive Kathrein RFID readers and sent the read identification numbers and direction information to the Levira server via a modem. We selected Ferm RFID tags, originally developed for ProRail, as they were easy to attach to the goods wagons.
For tracking the position between stations, we used a special version of our self-developed GPS/LoRa trackers, powered by two lithium D-cell batteries, allowing for a three-year tracking lifespan.
The position and direction of the wagons are now consistently available on the Levira servers, ensuring precise tracking across the entire route.
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