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关键词： CPU   操作系统   网信领域   核心技术   生态圈  

摘要： CPU和操作系统是网信领域核心技术的基础和核心。当前,网信领域核心技术的竞争已经不是单项技术和产品的竞争,而是整个生态系统的竞争,以CPU和操作系统为核心的生态系统越来越成为竞争成败的关键。微软、英特尔等国际巨头通过长期深厚的积累和持续高强度的研发投入,牢牢控制着网信领域核心技术生态的关键环节。与此同时,我国网信领域核心技术生态圈建设,面临着核心技术生态碎片化、缺乏积累等问题,需采取针对性的措施加快推动网信领域核心技术生态圈建设。

关键词： “互联网+”   操作系统   去中心化   尊重个人   政府“守夜人”  

摘要： 随着互联网快速发展,媒体产品的生产方式也正在经历巨大变革。基于互联网,我们应该打造一个全新的媒体"操作系统",以适应发展趋势和受众需求。这个全新的"互联网+"的操作系统,应当具有去中心化、扁平化,更具双向交互性的特点,同时,在新的媒体工作方式中,个人的"权利"以及"资源量"将被给予更大的尊重和更有效的开发利用。

关键词： 嵌入式系统   嵌入式操作系统   Nucleus   协议通信  

摘要： Nucleus操作系统凭借具有操作系统源码、调试时可跟踪至中断和寄存器级,以及支持多种处理器进行系统移植的优势,成为实时嵌入式产品系统优选,本文针对实时系统网络通信需求,提出利用操作系统外挂Nucleus NET模块实现TCP和UDP协议通信,并将源代码运用于多种模式组网终端产品,结果表明,数据语音通信及时顺达。

关键词： 嵌入式Linux   实时性   响应时间   优化研究  

摘要： Linux因其开源特性被广泛应用于工业控制等领域,但其实时性能的不佳,限制了其在实时领域的应用。通过对目前存在的多种实时性优化方案进行调研,并分别进行分析研究,对响应时间这一重要实时指标进行测试,在不同情况下可采用不同的优化方案。

关键词： 软时统   同步   麒麟操作系统  

摘要： 目前测控计算机系统国产化步伐逐步加快,麒麟操作系统平台下软件时统的探索仍处于起步阶段。提出了一种时统软件化的设计方案,并进行了相关技术指标的测试验证,结果表明,软件时统性能指标符合技术要求,为后续软件时统系统研制提供了技术支持。

关键词： 大数据理念   教师专业发展   评价要素   评价系统   操作系统  

摘要： 科学的评价系统是有效促进教师专业发展的保障。调查研究表明,依托基于大数据理念遴选的教师专业发展评价要素,可以建构科学的教师专业发展评价系统。在这一评价系统基础上架构的教师专业发展评价操作系统具有动态统计功能、大数据交互评价功能和网络查询功能,有助于促进教师主动提升专业素养,推动教师团队的整体发展。

关键词： magnetorheological fluids   haptic interface   catheter minimally invasive surgery  

摘要： During conventional catheter endovascular procedures, surgeons needs to adjust the catheter intervention moving direction and velocity according to the direct sensation. Moreover, in the conventional method, both the surgeon and the patient are inevitable exposed to a large amount of, and for a long period of time, X-ray radiation during the surgical procedure. The purpose of this paper is to ensure surgical safety and to protect the surgeon from X-ray radiation during the surgical procedure by adopting a novel haptic-based robot-assisted master-slave system mode. In this paper, a kind of magnetorheological fluids (MR fluids)-based haptic interface has been developed to generate a kind of controllable haptic sensation providing to the catheter operator, and the catheter intervention kinematics parameters measured the motion capture part to control the salve robotic catheter operating system following the master side kinematics. The slave catheter operating the mechanical system has also been designed and manufactured to manipulate the clinical catheter by mimicking the surgeon operating the catheter intervention surgical procedure, which has a 2-DOF (advance, retreat, and rotate) catheter motion characteristic;in addition, the interaction force between the catheter and inner wall of vasculature can be measured by its force sensing unit and the feedback to the master system. The catheter intervention synchronous evaluation experiments between the master and slave system are tested. Also, the advantages of integrating the controllable haptic sensation to the master-slave system experimental evaluations have been done in vitro. The experimental results demonstrated that the proposed haptic-based robot-assisted master-slave system mode can reduce the surgical time and protect the surgeon from X-ray radiation.

摘要： Criticality of a software system refers to the severity of the impact of a failure. In a high-criticality system, failure risks significant loss of life or damage to the environ- ment. In a low-criticality system, failure may risk a downgrade in user-experience. As criticality of a software system increases, so too does the cost and time to develop that software: raising the criticality also raises the assurance level, with the highest levels requiring extensive, expensive, independent certification. For modern cyber-physical systems, including autonomous aircraft and other vehicles, the traditional approach of isolating systems of different criticality by using completely separate physical hardware, is no longer practical, being both restrictive and inefficient. The result is mixed-criticality systems, where software applications with different criticalities execute on the same hardware. Sufficient mechanisms are required to ascertain that software in mixed-criticality systems is sufficiently isolated, otherwise, all software on that hardware is promoted to the highest criticality level, driving up costs to impractical levels. For mixed-criticality systems to be viable, both spatial and temporal isolation are required. Current aviation standards allow for mixed-criticality systems where temporal and spatial resources are strictly and statically partitioned in time and space, allowing some improvement over fully isolated hardware. However, further improvements are not only possible, but required for future innovation in cyber-physical systems. This thesis explores further operating systems mechanisms to allow for mixed- criticality software to share resources in far less restrictive ways, opening further possibilities in cyber-physical system design without sacrificing assurance properties. Two key properties are required: first, time must be managed as a central resource of the system, while allowing for overbooking with asymmetric protection without increasing cer

关键词： computer vision   3D vision   industrial robots   automation   artificial intelligence   robot operating system  

摘要： The paper proposes flexible system that is based on Robot Operating System framework for integration of 3D computer vision and artificial intelligence algorithms with industrial robots for automation of industrial tasks. The system provides flexibility of 3D computer vision hardware and industrial robot components, allowing to test different hardware with small software changes. The experimental system consisting of Kinect V2 RGB+Depth camera and Universal Robots UR5 robot was set up. In experimental setup the pick and place task was implemented where randomly organized two types of objects (tubes and cans) where picked from the container and sorted in two separate containers. Average full cycle time for the task was measured to be 19.675 s.

关键词： Linux操作系统  

ISBN: (纸本)9787560880563

摘要： 本书依据源代码程序详细描述了Linux内核的基本功能。书中首先介绍了Linux的历史，说明了内核的演变发展过程，然后概要介绍了运行Linux操作系统的PC硬件的组成结构以及内核所使用的汇编语言和C语言扩展部分，着重介绍和说明了80x86处理器在保护模式下运行的编程方法。接着详细介绍了Linux内核源代码的程序文件，每个文件的功能和相关的软硬件知识。在最后一章给出了实验内容，读者可以由此对Linux操作系统内核进行仿真实验，以获取对Linux操作系统工作原理的深入理解。