Patent
Distribution network power line communication system including addressable interrogation and response repeater
TLDR
In this article, a distribution network power line communication system which is divided into addressable communication zones defined by repeaters located at the distribution transformers of the distribution network is described, where each repeater, when uniquely addressed by an interrogation signal from an interrogating source, strips its address from the interrogation signal and sends the resulting modified interrogation signal to its associated remote communication terminals, bypassing the associated distribution transformer.Abstract:
A distribution network power line communication system which is divided into addressable communication zones defined by repeaters located at the distribution transformers of the distribution network. Each repeater, when uniquely addressed by an interrogation signal from an interrogating source, strips its address from the interrogation signal and sends the resulting modified interrogation signal to its associated remote communication terminals, by-passing the associated distribution transformer. A timely, error-free response signal from a remote communication terminal is modified by a repeater to include the repeater address, and the modified response signal is sent back to the interrogating source. The binary base band interrogation and response signal information is preferably pulse width modulated to provide a self clocking format, and this self clocking signal is passed through two stages of frequency modulation to provide a signal which makes the receivers thereof substantially immune from drift.read more
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Patent
Power line communication system and method of operating the same
TL;DR: In this paper, the authors present a system for operating a power line communications system that is comprised of a plurality of network elements, which may take the form of repeaters, bypass devices, backhaul devices, wireless backhaul device, enhanced bypass device, communication interface devices and others.
Patent
Device and method for coupling with electrical distribution network infrastructure to provide communications
TL;DR: In this article, a device for providing communications through power lines that are communicatively coupled to an electrical distribution network infrastructure and to the internal wiring of at least one customer premises having one or more communication devices therein is provided.
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Local area network of serial intelligent cells
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Data communication over a power line
TL;DR: In this paper, a power line and a computer are communicated via a distribution transformer and the computer is in communication with a wireless communication path, and a conversion is made between the first data signal and a second data signal capable of being communicated wirelessly.
Patent
Power line communication system and method of using the same
TL;DR: In this article, the last portion of the electrical distribution system is used to provide high-speed communications to residential homes, where an aggregation point interfaces a medium voltage power line with a point-of-presence, and a power line bridge enables flow of communications signals between the medium voltage and low voltage power lines across a distribution transformer.
References
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Patent
Utility meter remote automatic reading system
TL;DR: In this article, a digital data processing and communications system for a remote utility meter data acquisition system is described, which employs an electronic interrogator which may be either mobile or fixed.