The Design of Automatic Control System for Industrialized Recirculating Aquaculture

Based on the control process and requirements of the industrialized recirculating aquaculture system (IRAS), we designed an aquaculture automatic control system. The entire system is divided into seven modules including water circulation and filtration, bioreactor self-loop, water quality monitoring, Emergency treatment, thermostatic temperature control, PID operation, and failure alarm. It is used to control the water circulation, and automatically detect and adjust the environmental factors of the pond for best farming environment. The lower computer adopts Siemens S7-200 PLC. MCGS configuration software is applied in the upper computer for the dynamic display, parameter setting, fault alarm and other functions of the whole recirculating aquaculture process. The lab test showed the advantages of the system including the high degree of automation of the system, user-friendly, easy to maintain and reliable operation, with a good promotional and application value.