The way of logical data transmission along a single-wire communication line on the basis of multizone frequency-width-pulse modulation

Abstract

The paper considers several logical variables transmission describing regular and emergency modes of operations of the inspected control object by means of a single-channel communication line. The method is based on multizone frequency-width-pulse modulation. The block diagram of receiving and transmitting channels and example of modulation zones allocation algorithm between logical variables are given. The authors present the block diagram, time diagrams of signals and main equations for static and dynamic modes of the multizone frequency-pulse-width scanning converter with zero conjugation of modulation zones. The paper gives the results of analysis of the correlation between the number of relay elements and the number of modulation zones for the basic structure of the multizone integrating scanning converter. The block diagram of single-wire transmission system of the logic data about control object condition is considered. The principle of single-wire logic messages transfer is discussed. Algorithm of the modulation zones distribution on a code condition of the inspected control object is shown. The paper may be of interest for specialists in the field of power and information electronics, of the electric drive and automation of technological processes.