Design and Development of a Constant-Temperature Reservoir for a Database-Driven Smart Cultivation System

Decreasing the number of people working in the agriculture sector is a serious problem in Japan. Production of agricultural products in a plant factory is one of the solutions to the above problem. However, setting optimal environmental conditions is difficult owing to the nonlinearity of the system. This research aims for the realization of a smart cultivation system using a database-driven (DD) technique. In this paper, a pilot scale constant-temperature reservoir with a nonlinearity regarding the Peltier device was developed, and its derivative equations were derived. Moreover, a DD controller was designed for the system, and the simulations demonstrate that the proposed control system could control the temperature to a wide desired temperature range.