VALVE CONTROL DEVICE FOR HOT AND COLD WATER SUPPLY USING POWER LINE COMMUNICATION

摘要

A valve control device for supplying hot and cold water using power line communication is provided to simplify construction and prevent confusion by setting a protocol for each valve control device. A power stabilizing circuit(20) is connected with a power line(10) and supplies stable power. A coupling transformation unit(30) is connected with the power line and filters only a communication signal to input/output it. A modulation/demodulation unit(40) reproduces an analog signal modulated from the communication signal into its original digital signal or performs modulation reversely. A microprocessor(50) controls an inputted/outputted digital signal and performs calculation. A motor control driver(60) controls forward/backward rotation of a motor of a motor controller(70). An auxiliary memory unit(90) temporarily stores a control signal calculated by the microprocessor.