Power line communication system

Details Power line communication system Power line communication system

H - Electricity

04

B

H04B 3/54 (2006.01) E21B 47/00 (2006.01) E21B 47/12 (2006.01) H02J 13/00 (2006.01)

Patent

CA 2377895

This invention relates to a power line communication (PLC) system (8) wherein the power supply line supplies power and also acts as a communications supply line. A receiver (30) is able to detect small changes in the modulated transmitted information and thereby shut down the circuit. The invention is particularly suitable for use where the IEL is remote from the power supply such as, for example, in down hole oil production situations where very long power cables are used.

Cette invention concerne un système (8) de communication par courant porteur en ligne (CPL) dont la ligne d'alimentation électrique sert à la fois à fournir de l'électricité et à assurer les communications. Un récepteur (30) peut détecter des petits changements dans les informations transmises modulées, et ensuite éteindre le circuit. L'invention est particulièrement utile quand la charge électrique inductive est éloignée de l'alimentation électrique inductive est éloignée de l'alimentation électrique, par exemple dans le cas d'opérations de forage pétrolier où l'on utilise des câbles électriques très longs.

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