基于IAP和μC/OS的海洋定位信标设计

Design of marine positioning beacon based on IAP and μC/OS

针对在海洋探测活动中如何确保海洋定位信标安全、可靠工作以及如何提升信标可维护性等问题,对海洋信标的功能定位、嵌入式实时操作系统、有限状态机、无线IAP等内容进行了研究,对可能引发嵌入式系统不稳定的原因进行了归纳,对程序结构、通讯方式、基于μC/OS的有限状态机、STM32启动方式和采用Ymodem差错控制协议的无线IAP技术进行了设计,提出了一种基于IAP和μC/OS的海洋信标定位系统。这种方式在兼顾系统可靠性的前提下,大大提升了系统的可维护性。最后对海洋信标进行了多次海试。通过对比分析表明:采用μC/OS+有限状态机的海洋定位信标可以提升系统的可靠性,同时无线IAP技术的引入,使系统可以实现"非接触"式升级,提高了系统的可维护性。

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.