The data coupler design in transmission technology based on coaxial cable

Chinapsilas scientific research and scientific research device of ocean especially deep-ocean has developed rapidly during recent years. But till now research device and monitoring system are power supplied by underwater lithium batteries. Underwater lithium batteries powering method has many disadvantages and constrains the development of deep-sea scientific research. So a new mixed transmission technology based on the armored coaxial cable PLC (power line carrier) is proposed. This new technology can transfer direct-current high power source, real-time color image and data of both host and slave at the same time. This technology made the superposition of direct-current power source and SHDSL data signal mainly by capacitance coupling and low-frequency filtering. It adopts coaxial cable as the media for the data signal and power signal mixture transmission. Thus the goal of high-speed and long-distance transmission can be achieved.