Abstract
A fishing gear system is generally considered as a physical system in which many mass points are connected with flexible lines, and it is modeled as non-linear differential equations, These systems are solved using numerical integration methods, and the answer provides the behavior of the gear in a steady and transient state. The necessity of automatic control in a fishing gear system is increased in accordance with the trend of complicated fishing methods and expanded fishing grounds. Under these fishing environments, rapid and precise fishing gear control is necessary, which can be realized with the intelligent control system made by the combination of the sensitive judgment of a human and control technology.
