Innovative technologies for monitoring the technical condition of boxing units of cars by the built-in control system

The paper considers an integrated system for monitoring the technical condition of axle boxes for new car generation. The general structure of the system, which consists of onboard and ground modules, is considered. The OBD onboard module is mounted on the end face of the wheelset axle and, thus, the temperature sensor has direct contact with the axle journal. BDS ground modules can be both stationary, which are located directly on the stretch, and mobile - in the form of hand-held terminals. The results of full-scale and operational tests in the framework of scientific research work on the cars of the Poltava mining and processing plant for Ukrainian Railways are presented. Operational tests have shown that the system increases the reliability of control, and on the basis of the data obtained, it is possible to analyze the technical condition of the axle boxes. It has also been confirmed that the system is capable of operating reliably under operating conditions. Analyzing the test results, three technologies for the use of embedded systems were proposed: the technology of use at control posts, both separately and in conjunction with existing remote control systems; data collection technology during the parking of cars in maintenance; combined technology combining the first two into one: operational minimum necessary data is collected at control points, and volumetric data for analysis - when the car is parked. It is concluded that embedded systems, in combination with remote ones, increase the reliability and efficiency of control. As well as the integration of embedded systems into the existing infrastructure of remote systems, it will significantly reduce the cost of control, as well as the time of deployment and adaptation of the system. The proposed three methods for monitoring the technical condition of axle boxes in operation, ultimately, will allow not only with high reliability to identify overheated axle boxes in passing trains, but also prevent the installation of cars with potentially emergency axle boxes by analyzing dynamic data obtained from built-in control tools. This one , in turn, will increase the safety of transportation and their rhythm. безопасность их