US 12,416,653 B2
Selection of the phase used to communicate by PLC
Christophe Grincourt, Rueil Malmaison (FR); Marc Jeanrot, Rueil Malmaison (FR); and Flavien Polverari, Rueil Malmaison (FR)
Assigned to SAGEMCOM ENERGY & TELECOM SAS, Rueil Malmaison (FR)
Filed by SAGEMCOM ENERGY & TELECOM SAS, Rueil Malmaison (FR)
Filed on Dec. 19, 2022, as Appl. No. 18/084,358.
Claims priority of application No. 2113979 (FR), filed on Dec. 20, 2021.
Prior Publication US 2023/0194583 A1, Jun. 22, 2023
Int. Cl. G01R 22/06 (2006.01); H04B 3/54 (2006.01)
CPC G01R 22/063 (2013.01) [H04B 3/546 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An electricity meter, arranged to measure electrical energy supplied to an installation by a distribution network comprising a plurality of phases, the electricity meter being arranged to implement a communication by power-line communication, and comprising:
a switching circuit arranged to selectively connect the communication module to one of the phases; and
a processor unit arranged to control the switching circuit so as to connect the communication module to an optimized phase, from among the phases, which is selected dynamically to optimize a quality of the communication by power-line communication,
wherein the processor unit is arranged, for each phase, to evaluate the quality of the communication by power-line communication, when the communication module is connected to said phase, and to select the optimized phase according to a result of this evaluation,
wherein the quality of the communication by power-line communication is evaluated according to at least one quality parameter comprising a signal to noise level and/or a frame exchange success rate,
wherein the processor unit is arranged to implement the following test and connection steps:
controlling the switching circuit such that it connects successively the communication module to each phase;
for each phase, when the communication module is connected to said phase, evaluating or acquiring the quality parameter;
selecting as the optimized phase, the phase for which the quality parameter is maximum, and controlling the switching circuit such that it connects the communication module to said optimized phase, and
wherein the processor unit is arranged to:
evaluate or acquire the quality parameter when the communication module is connected to a current phase; and
when the quality parameter becomes less than a predefined threshold, implement the test and connection steps.