Analysis, development of a model and an algorithm in the concept of the growth of tone jointless rail circuits

Abstract

An increasing increase in freight and passenger traffic, as well as an increase in train speeds, which reach up to 350 km/h, sets the task of improving sensors for controlling track sections and ensuring the reliability in work of the sensors. Throughout the world, one of the sensors are track circuits, as with insulating joints, so and without insulating joints. To realize a more reliable system, intelligent track circuits are proposed based on a jointless voice frequency connections, in which different principles can be used: regulation of the power supply voltage, correlation methods for switching on rail lines and devices of rail circuits with electromagnetic dependences, receiver sensitivity adjustment, comparison of electrical parameters of several track circuits at different block sections, as well as the combination of these methods and the continuity of the incoming information. Therefore, such improvement of continuous welded rail circuits becomes relevant, which would improve the reliability of the elements, use a modern microprocessor element base in devices for monitoring the state of track sections, thereby ensure the quality of synthesis of information processing. This will significantly reduce the cost of building and operating interval control systems and increase the safety of train traffic. These requirements are met by intelligent, jointless rail circuits of tone frequency, which take into account the current value of the insulation resistance, longitudinal asymmetry, rate of change in the resistances of these circuits and the disturbing factors that affect the operation of the track circuits.