Track occupation detection system is designed to detect the absence of a train on rail tracks. The foundation of the system is a counting unit and inductive wheel sensors with evaluation cards. The system is designed to count the axles of vehicles moving at a maximum speed of up to 350 km / h. SKZR-2 allows any configuration of controlled sections, both in terms of possible system expansion and configuration changes during system operation. Diagnostic tools ensure constant monitoring of correct operation. Moreover, SKZR-2 can use wireless transmission to control rail tracks.