基于CAN总线的土工三轴仪控制系统的研制

【作者】 李伟；

【导师】 佟宇；

【作者基本信息】 大连理工大学 ， 机械制造及其自动化， 2004， 硕士

【摘要】 计算机技术和数字通信技术的飞速发展带来了控制领域的深刻变革，使控制系统向分散化、网络化、智能化方向发展。现场总线控制系统(FCS)的出现适应了控制领域的这一发展要求，成为集散控制系统(DCS)之后的新一代控制系统，并成为控制领域发展的主流。 本论文针对国内三轴仪市场的要求，分析了目前三轴仪控制系统的优缺点，研究了三轴仪控制系统的发展趋势，研制了一套以CAN总线作为数据通讯方式的具有实时控制特点的三轴仪控制系统，并完成了控制系统的硬件、软件设计与调试工作。研究工作主要包括： 确定了控制系统的数据通信方案和控制方式方案，并给出了控制系统的整体结构； 完成了三轴仪系统的下位机微处理器(TMS320LF2407A)系统平台的硬件设计； 完成了三轴仪通信系统的硬件电路设计、软件编程与系统调试； 进行了三轴仪轴向加载系统的结构研究及加载系统的硬件电路设计及软件编程。 通过理论分析与试验表明，所开发的基于CAN总线的三轴仪控制系统有效地提高了控制系统的实时性、数据通信的可靠性和三轴试验的自动化程度。实现了系统的最优控制、最大的资源利用率和集散控制系统向数字化系统的过渡，具有重要的理论意义和应用价值。更多还原

【Abstract】 The rapid development of Computer Science and Digital Communication Technology leads to the revolution of Control Field. Distributed, Network and Intelligent System become the directions of Control Field. Field Control System (FCS) meets the demands of Control Technologies Developments. It becomes a new generation Control System after the Distributed Control System(DCS). And it becomes the mainstream of Control Field.According to the requirement of the triaxial instrument home market, the advantages and the disadvantages of control scheme in current triaxial instrument control system are analyzed in this dissertation. The development direction of the triaxial control system is studied. A set of triaxial instrument control system is researched and designed. The control system whose data communication mode is CAN bus has Real-time control characteristic. The designing of the hardware circuit, the programming of the software and the debugging of the control system are accomplished. The main research tasks are as follows:The corresponding communication protocols and the control mode of the triaxial control system are established. The design of the system is accomplished.The hardware of the triaxial instrument microprocessor (TMS320LF2407A) system is accomplished.The hardware circuit, the software programming and the system debugging of the triaxial instrument communication system are accomplished.The structure of the triaxial instrument axial loading system is studied. The hardware circuit and the software programming of the loading system are accomplished.The theory analysis and experiments indicate that the triaxial instrument control system, which is based on the CAN bus, enhances the real time performance of the system, the reliability of the data communication and the automation degree of the triaxial instrument experiments effectively. The optimization control, the maximal resource utilization ratio and the transition from the distributed system to digital system are realized. It possesses essentially theoretical significance and engineering application values.更多还原