Design of marine positioning beacon based on IAP and μC/OS
QI Sheng bo, TIAN Jiu dong, LIU Gui jie
(College of Engineering, Ocean University of China, Qingdao 266100, China)

Abstract: Aiming at the problems of how to ensure the marine beacon working reliably and how to enhance the maintainability of marine beacon, the functional orientation of marine beacon, embedded real time operating system, finite state machine, and wireless IAP technology were researched, the reasons for the instability of the embedded system were summarized. The program structure, communication method, finite state machine based on μC/OS, the boot mode of STM32, and wireless IAP technology using Ymodem error control protocol were designed. A marine beacon positioning system based on IAP and μC/OS was proposed. And the maintainability of the system was improved. The marine beacon was tested several times in the sea. The results indicate that the stability of the system is improved by using “μC/OS+FSM”, and the maintainability of the system is also improved by using wireless IAP technology.

Key words: marine beacon; μC/OS; finite state machine(FSM); in application programming(IAP)