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The study of configuration-style CNC system based on CANBUS 总被引:1,自引:1,他引:0
Chen Zongyu L.F. Wang C.X. Li Y.H. Liu 《The International Journal of Advanced Manufacturing Technology》2006,28(11-12):1129-1135
Nowadays, numeric control systems or CNC systems are still mainly offered by specific manufacturers, which cannot meet the developing demand of modern technology toward openness, networking, and intelligence. With the decrease of chip cost, the improvement of its performance and the development of fieldbus technology, it becomes easier to develop an open, configurable and intelligent CNC system. In this paper, a new configuration-style CNC system architecture based on CANBUS is presented, including the building of its UML model, the design of communication protocol, the realization of system configures, and the design of software and hardware structures. Finally, an experiment based on configuration-style methods is presented. 相似文献
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针对企业信息系统需求发展与系统开发不同步的问题,提出支持动态需求的信息系统开发技术体系.通过建立信息系统集成组件化开发软件体系,实施企业参与开发的配合策略,实现需求发展与系统开发进程相同步,提高信息系统开发过程的集成性、开放性和灵活性,保证系统开发质量和进度. 相似文献
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虚拟轴机床CNC系统的软件设计及系统特点 总被引:5,自引:1,他引:4
层次化的体系有助于建立标准化、模块化和开放式的CNC系统,多任务的软件设计可大大提高CPU的利用率。本论文围绕虚拟轴机床数控系统层次化结构和多任务设计,主要阐述了该系统的软件设计并描述了其整体特点 相似文献
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新一代集成化PC数控系统 总被引:3,自引:1,他引:2
针对提高国产数控系统市场占有率的迫切需求,提出新的集成化PC数控模式和体系结构,研究了集成化PC数控系统的硬件结构和软件组成,且在此基础上开发了TH2000系列集成化数控系统产品。这种新型数控系统具有可靠性高、性能好、低等特点,其性能价格比已达到当前国际先进水平。 相似文献
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基于可编程逻辑器件的可重构数控系统研究 总被引:15,自引:1,他引:15
根据可重构制造系统的发展要求,分析了数控系统重构的重要性,讨论了可重构制造系统,可重构数控系统和开放式数控系统之间的关系。在此基础上,总结了目前实现数控系统重构的软硬件途径,然后,重点结合可编程逻辑器件和硬件重构技术,提出将可编程逻辑器件应用于可重构数控系统开发,并进行了可实现性,经济可行性分析,最后,通过一经济型可重构数控系统的研制,验证了实现的可行性与有效性。 相似文献
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Flip chips are widely used in microelectronics packaging owing to the high demand of integration in IC fabrication. Solder bump defects on flip chips are difficult to detect, because the solder bumps are obscured by the chip and substrate. In this paper a nondestructive detection method combining ultrasonic excitation with vibration analysis is presented for detecting missing solder bumps, which is a typical defect in flip chip packaging. The flip chip analytical model is revised by considering the influence of spring mass on mechanical energy of the system. This revised model is then applied to estimate the flip chip resonance frequencies. We use an integrated signal generator and power amplifier together with an air-coupled ultrasonic transducer to excite the flip chips. The vibrations are measured by a laser scanning vibrometer to detect the resonance frequencies. A sensitivity coefficient is proposed to select the sensitive resonance frequency order for defect detection. Finite element simulation is also implemented for further investigation. The results of analytical computation, experiment, and simulation prove the efficacy of the revised flip chip analytical model and verify the effectiveness of this detection method. Therefore, it may provide a guide for the improvement and innovation of the flip chip on-line inspection systems. 相似文献
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结合工程实际从系统结构、数据结构、信息接口,软件运行控制与调度逻辑,处理时序等方面介绍了一个分布式控制系统的软件同构化设计方法。 相似文献
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本文针对电能信息采集系统终端软件远程升级和维护困难的问题,提出了基于GPRS通讯的终端软件远程升级方案。为了加快终端软件远程升级的速度,根据终端程序文件生成的特点,提出了对终端软件远程升级的方法及实现了基于电能信息采集系统的终端升级程序数据远程传输通讯协议的设计。通过分析程序更新的特点,详细设计了终端自身程序更新的过程及其实现。 相似文献
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基于运动控制芯片MCX314的数控系统设计 总被引:1,自引:0,他引:1
针对当前数控系统速度慢、控制精度等问题,提出以运动控制芯片MCX314为核心的车床数控系统设计方法,介绍了该芯片的结构特点及与AT89C52的接口电路,详细介绍了该系统的软件及硬件结构。 相似文献