Abstract
This paper deals with the elaboration of the method of definition of primary and secondary parameters of the rail circuits on the base of the measuring car-laboratory with the help of special program microprocessor apparatuses. It was proposed advanced mathematic model of the information channels (rail circuits) for scientific substantiation of a method of the code parameters measurement. The measurement of current in the rail circuit is carried out in the regime of automatic locomotive signaling. The parameters of the rail circuits are defined by the value of code current of the rail circuits in the beginning and the end of the rail path. The results of modeling are presented for the 50 Hz code rail circuit.
Highlights
This paper deals with the elaboration of the method of definition of primary and secondary parameters of the rail circuits on the base of the measuring car-laboratory with the help of special program microprocessor apparatuses
It is known fact that the principle of work of automatic locomotive signaling system is based on the transferring signal current by frequency 50 Hz and 25 or 75 Hz from the rail circuit to the locomotive receiving coils
The method for the definition of primary and secondary parameters of rail circuits is elaborated based on results of measurements with the help of equipment of car-laboratory
Summary
It is known fact that the principle of work of automatic locomotive signaling system is based on the transferring signal current by frequency 50 Hz (at the d. c. traction) and 25 or 75 Hz (at the a. c. traction) from the rail circuit to the locomotive receiving coils. C. traction) from the rail circuit to the locomotive receiving coils. The code current is formed by impulses and pauses. This code corresponds to indications of traffic lights. The last pause is longer than the first one and it is named as a dividing pause in all kinds of codes. All control methods of technical service of rail circuits are possible to be dividedin two kinds. The second method allows us to determine the time and numerical parameters of a code current in rails during measuring trip of a car - laboratory. The primary and the secondary parameters of a rail circuit are not defined in this case
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