Design of Special Underwater Measurement and Control System Based on Distributed Management

Aiming at the rising demand for functional diversity and stability of underwater sampling equipment, a special underwater measurement and control system based on distributed management is designed in this paper. The system takes STM32F407 as MCU, dividing the whole function into different functional modules that work independently under unified management. Equipped with isolated CAN transceiver, each module connects to CAN bus in the method of board access so as to realize the centralized-distributed structure which takes the main control board as the management core. The system can be extended conveniently owing to its good access capability and extendibility. Besides, the system's self-check ability can help the system monitor the state of power supply and external control. Tests show that the system can realize efficient and stable operation and achieve all functions successfully.