Investigation of the time structure of output current of ACSC system signal transmission channel
DOI:
https://doi.org/10.15587/2312-8372.2015.52017Keywords:
automatic cab signaling, rail line, shunt, signal impulse, parametrical chainAbstract
The signal transmission channel is important component of systems of automatic cab signaling of continuous type (ACSC). The existing systems of ACSC have insufficiently high flow capacity and reliability of transmission of messages. Research of shunt current as carrier of alarm information allows establishing the reasons of decrease in reliability. In the existing works mathematical models of this current are constructed on the basis of number of the simplifying assumptions that limits their value for the solution of practical tasks. Objective of this research is creation of the specified model of shunt current considering its movement. The signal transmission channel is presented in the form of consecutive RL chain with variable parameters. The case of the shunt movement with constant speed is considered. It is shown that current satisfies to the linear uniform differential equation with variables in time in coefficients. The solution of this equation representing required model of current of the moving shunt is found. The model provides possibility of the correct analysis of influence of signal impulse front form on reliability of ACSC signal reception.
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