Abstract
During the process of oil collection, treating power cable for the supply of electrical submersible pump unit as the medium of the underground signal transmission to the ground, it has broad application prospects and economic value. But there is large distance between down-hole devices and ground equipment, and electrical submersible pump unit condition monitoring system measures many parameters, and there is a converter of harmonic interference, therefore, it restricted the application of the underground power line carrier communication technology severely. Designing an overall plan for signal extraction and transmission system in the paper. Based on the low-frequency power line carrier technology developing a practical communication protocol, to ensure the reliability of communication.
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