Optimized Fuzzy Logic Control System for Diver’s Automatic Buoyancy Control Device

In this article, the design of a fuzzy logic control system (FLCS) in combination with multi-objective optimization for diver’s buoyancy device (BCD) is presented. To either change or maintain depth, diver manually controls two pneumatic valves that are mounted on inflatable diving jacket. This task can be very difficult, especially specific circumstances such as poor visibility, safety stop procedures critical life functions diver. The implemented BCD hardware automatically depth by inflating deflating jacket electro-pneumatic valves. FLCS was used to minimize error and simultaneously ensure minimal air supply consumption BCD. vertical velocity also critical, while ascending during decompression procedure; therefore, configured cascaded controller setup outer proportional inner loops. parameters achieved differential evolution global optimum search algorithm. results obtained were compared optimized position PID simulations.