A petroleum underground multi-parameter acquisition and monitoring system based on power line carrier

The paper introduces a petroleum underground multi-parameter acquisition system that consists of slaver systems, host systems and signal transmission systems. The system is used to responsible for the oilfield underground temperature, pressure, vibration, and leakage current and other parameters of real-time monitoring. It must use power line carrier technology that use three-phase power supply cable as the electrical signal transmission channel and the power supply line because the submersible pumps can not provide a dedicated channel signal transmission and power supply lines under actual working conditions.