Development of automatic harvestingandacidic processing system for under water laver cultivation

North-East asian countries, laver cultivation has been an important marine industry in coastal areas as well as fishery because laver (Porphyra) is nutrient-rich food and has been used in many Asian cuisines. However, laver cultivation is vulnerable to natural disasters such as typhoons and tsunamis. If those disasters hit laver cultivation area, laver cultivation structures would be devastated and scattered around the coast. Laver is characterized by high concentrations of fiber and minerals, a low fat content, and, in some cases, relatively high protein levels. Consumption of seaweeds, including laver, increases the intake of dietary fiber and lowers the occurrence of some chronic diseases such as diabetes, obesity, heart disease, and cancer. In this paper, the automatic harvesting and acidic processing system for underwater laver cultivation has proposed. This automatic system consists of design of the boat with hydraulic, cylindrical, and linear actuators, and also acidic processing system consists of sensors which are used to maintain the certain level of the acidic nature of the water. The system prototype has implemented and satisfied by the performance to realize the further level.