METHOD FOR GENERATION OF RESULTING SERIES OF SYNCHRONIZING IMPULSES DURING TRANSFER OF INFORMATION VIA THREE-PHASED ALTERNATING-CURRENT ELECTRIC NETWORK Russian patent published in 2006 - IPC G08B25/06 H04B3/54 

FIELD: engineering of systems and methods for transferring information via electric supply lines, possible use in alarm systems or systems for automatic collection of data from remote sensors.

SUBSTANCE: during transfer of information along three-phased alternating-current electric network in selected phase of electric network moments of transfer of main harmonic of network voltage over zero with derivative of same sign are determined. Time stamps are made for these moments. Further, exchange of code messages is performed between phases of alternating current electric network. Time span between beginnings of last two generated time stamps is measured. Value of aforementioned time span is recorded. Resulting series of synchronization impulses is produced by generation of three synchronization impulses after expiration of each recorded time span, first impulse starting immediately after expiration of recorded time span, second one - after passage of one third of recorded time span after beginning of first synchronization impulse and third one - after one third of recorded time span after beginning of second synchronization impulse. Exchange of messages between phases of alternating current electric network is realized using transmitting-receiving devices, made with possible receipt and/or transmission of code messages along phases of alternating-current electric network. Also, exchange of code messages between phases of electric alternating-current network is realized using identical reactive connecting devices, connected between phases of alternating-current electric network.

EFFECT: simplified construction and assembly of alarm or data transfer systems for territorially remote objects.

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