Method for transmitting measuring signals through the three-wire direct-current line

The invention relates to a method for transmitting two analogous signals through the three-wire direct-current line and can be used in the communication interfaces when transmitting information, remote measurement of values of two thermal or resistance strain gauges.The method includes injection to...

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Bibliographic Details
Main Authors PENIN Alexandru, SIDORENKO Anatol
Format Patent
LanguageEnglish
Romanian
Russian
Published 31.05.2014
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Summary:The invention relates to a method for transmitting two analogous signals through the three-wire direct-current line and can be used in the communication interfaces when transmitting information, remote measurement of values of two thermal or resistance strain gauges.The method includes injection to the output of the direct-current line of two sets of test signals, simultaneous injection to the line output of two information signals, formation of the measuring signals, calculation of the information signals according to the measuring and test signals, injection of the obtained information signals to the respective wires of the direct-current line, measurement at the line inlet of the currents corresponding to the transmitted test and information signals, and calculation of the measuring signals according to the measured current values. Invenţia se referă la procedeele de transmitere a două semnale analogice prin linia de curent continuu cu trei conductoare, şi poate fi utilizată în interfeţe de comunicaţie la transmiterea informaţiei, la măsurarea la distanţă a valorilor a două termo- sau tensorezistoare.Procedeul include aplicarea la ieşirea liniei de curent continuu a două seturi de semnale de testare, aplicarea concomitentăla ieşirea liniei a două semnale informaţionale, formarea semnalelor de măsurare, calculul semnalelor informaţionale conform semnalelor de măsurare şi semnalelor de testare, aplicarea semnalelor informaţionale obţinute la conductoarele corespunzătoare ale liniei de curent continuu, măsurarea la intrarea în linie a curenţilor ce corespund semnalelor de testare şi informaţionale transmise şi calculul semnalelor de măsurare conform valorilor măsurate ale curenţilor. Изобретение относится к способам передачи двух аналоговых сигналов по трехпроводной линии постоянного тока, и может быть использовано в интерфейсах связи при передаче информации, дистанционном измерении значений двух термо- или тензорезисторов.Способ включает подачу к выходу линии постоянного тока двух наборов тестовых сигналов, одновременную подачу к выходу линии двух информационных сигналов, формирование измерительных сигналов, вычисление информационных сигналов по измерительным и тестовым сигналам, подачу полученных информационных сигналов на соответствующие провода линии постоянного тока, измерение на входе в линию токов, соответствующих переданным тестовым и информационным сигналам, и вычисление измерительных сигналов по измеренным значениям токов.
Bibliography:Application Number: MDS20130024