基于ARM的多接口航向轴角模拟器研究

发布时间：2018-05-05 22:03

  本文选题：自整角机 + 轴角模拟器　； 参考：《吉林大学》2013年硕士论文

【摘要】：多接口航向轴角模拟器是使用了数字式自整角机的嵌入式产品，是船舶操舵陆上仿真系统重要组成之一。在船舶航向过程中，靠罗经来测量当前航向信息，根据当前航向与目标航向作比较，确定打舵角度，进而操控船体航向。在仿真系统中，控制器由控制算法代替，船体由船的数学模型代替，而罗经的功能由多接口航向轴角模拟器来实现。 轴角模拟器系统能够在自动、电动工况下按照用户设定向外发送三线形式的自整角机模拟信号和相应激磁信号；在联调工况下体现其多接口特性，能够接收串口、以太网、CAN总线网络等多种接口形式的数字轴角指令信号输入，接收到的数字信号经过插值、编码及锁存后发送给数字-轴角信号转换器DSC，由DSC完成最后的自整角机信号变换和输出任务。 本文首先介绍了自整角机在嵌入式系统上的应用与发展现况，根据项目任务要求进行了多接口航向轴角模拟器的功能需求分析，，根据功能分析得到的结论进行了整体系统的逻辑设计。 硬件部分设计囊括了电源和散热模块、微控制器STM32F103最小系统电路和PC104总线结构、键盘和LCD接口电路、输入接口电路和DSC信号转换电路。根据实际需要，以I/O端口丰富、支持多种通信接口为依据选取了STM32F103作为微控制器，以其为核心展开详细设计工作。 软件部分设计涵盖了实时嵌入式操作系统μC/OS-Ⅱ的移植、系统任务分配设计、系统人机交互GUI界面的设计，各接口电路硬件的驱动。在成功将μC/OS-Ⅱ移植到STM32F103上运行后，根据多航向轴角模拟器功能需求，采用时间轮转法，设置了不同优先级的8个用户任务。通过在工程中添加μC/GUI、μIP等软件包，完成了GUI界面设计和通信接口数据处理等编程工作。 最后借助图形化编程工具LabVIEW和自整角机-数字信号转换器SDC完成多航向轴角模拟器的功能测试。测试结果表明，本文设计成果能够完成预定的多种形式外部接口数字信号的接收和数字信号到自整角机信号的转换工作，各项参数指标满足项目任务要求，可作为舵机系统仿真实验工作之用。
[Abstract]:Multi-interface heading angle simulator is an embedded product which uses digital self-tuning machine and is one of the important components of ship steering land simulation system. In the course of ship course, the current course information is measured by the compass, and the rudder angle is determined according to the comparison between the current course and the target course, and then the ship course is controlled. In the simulation system, the controller is replaced by the control algorithm, the hull is replaced by the mathematical model of the ship, and the function of the compass is realized by the multi-interface heading angle simulator. The shaft angle simulator system can send out the three-wire analog signal and the corresponding excitation signal according to the user's setting under the automatic and electric operating conditions, and the multi-interface characteristic of the system can receive the serial port under the condition of joint adjustment, the system can send out the three-wire analog signal and the corresponding excitation signal according to the user's setting. Ethernet and can bus network and other interface forms of digital axis angle instruction signal input, received digital signal through interpolation, After coding and locking, it is sent to the digital axis angle signal converter (DSC), and the final signal conversion and output task of the self-tuning angle machine is completed by DSC. This paper first introduces the application and development of self-tuning machine in embedded system, and analyzes the functional requirements of multi-interface heading angle simulator according to the project task requirements. According to the conclusion of function analysis, the logic design of the whole system is carried out. The hardware design includes power supply and heat dissipation module, microcontroller STM32F103 minimum system circuit and PC104 bus structure, keyboard and LCD interface circuit, input interface circuit and DSC signal conversion circuit. According to the actual needs, the STM32F103 is selected as the microcontroller based on the rich I / O ports and supports various communication interfaces, and the detailed design work is carried out with it as the core. The software design includes the transplant of 渭 C / OS- 鈪

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