Abstract
Today, to use home automation, intelligent home controls or remote controls in the office, electronic equipment is moving away from wireless communication in favor of Power Line Communication (PLC). In the standard PLC solutions, the corrections that result from error transmissions are based on complex digital modulation methods and algorithms for validating the transmitted data without paying attention to the causes of the errors. This article focuses on the implementation of a filtering system for interference and signals in the 120–150 kHz band (CENELEC band C), which is injected into the network by transmitters. Such a filter separates the desired signal from the interference that is occurring in the network, which can result in communication errors. Moreover, when used properly, the filter can be used as a subsystem separation element. The paper presents the requirements, design, construction, simulation and test results that were obtained under actual operating conditions. It is possible to use less complex methods for correcting errors in transmission signals and to guarantee an improvement in the transmission rate using the proposed filter system.
Highlights
Power line communication systems have been used for various purposes within a broad range of fields, including telephony [1], street lighting controls, intercoms [2] and power transmission systems for almost 100 years [3,4]
Market Industry Analysis, Size, Growth, Trends, Segment and Forecast 2016–2021” that was prepared by MarketsandMarkets, the value of this market will increase from 7.26 billion dollars to 36.40 billion dollars by 2021 and the expected annual growth rate will be 38% [7]
In the case of the switch OFF tests, tests, there there were more problems with the transmission and cases in there was wasno noresponse responsetotothe thesignal signal from transmitter more often. This because which there from thethe transmitter more often. This waswas because the the receivers generated interference that hindered the reception of the signals; receivers generated interference that hindered the reception of the signals; the absence of additional filters in the system made it practically impossible to control the receivers when connecting in the middle of wires or as a controlled receiver of the fluorescent lamp (TEST2 and TEST4); in the case of an EMI filter and the use of the developed filters, full system efficiency was obtained from the point of view of controlling the receivers
Summary
Power line communication systems have been used for various purposes within a broad range of fields, including telephony [1], street lighting controls, intercoms [2] and power transmission systems for almost 100 years [3,4]. For a low-frequency narrowband PLC that has a scarifying data rate (up to 128 kbps) but has a large effective range (compared to BPL) and a fast response time, its filters and matching circuits are less expensive, and its processing needs are significantly less demanding—simple encryption and the possibility of defining its own MAC layer. A low-frequency narrowband power line communication opened for end-user applications with defined medium access control and advantageously without any protocol-dependent MAC was selected as one of the possible application scenarios. In this case, a ready-made STEVAL-IHP005V1 development board with an ST7540 was used to perform the PLC communication tests. The main goal is to filter a disturbance source inside the home grid as well as to filter a disturbance source that is located near the communication node
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