Shenyang Institute of Automation,Chinese Academy Of Sciences
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Research on repair method in Industrial Internet of Things based on attack anomaly characteristics
No full text针对工业物联网在实际运行中面临着功能失效因素不断增多、信息威胁加速渗透、攻击手段复杂多样等问题，考虑到工业物联网受到的攻击异常特征，提出了一种基于攻击异常特征的工业物联网修复方法。该方法通过将受损网络中正常节点进行社团划分，并根据攻击异常特征在每个社团中选取相应的代表节点后，在这些代表节点之间构建新的连接。仿真结果表明，该方法能够有效恢复工业物联网的结构和功能，为工业物联网的稳定运行提供理论方法。</p
Transient Dynamic Analysis of A Variable-Length Rope-Driven Wave Energy System
No full textA new dynamic model of a variable-length rope, which could be used for the transient analysis of a buoy-rope-generator (BRG) wave energy system, was proposed in this paper. The model started from the basic dynamic equations of variable mass system, and took into account the physical properties such as axial force, shear and bending. According to the principle of D'Alembert-Lagrange, the equivalent integral weak formulation was firstly obtained, and through consistent linearization and isoparametric discretization, the finite element model of the variable-length rope was then derived. The Bathe scheme was employed to solve the model numerically, based on its excellent performance in solving nonlinear dynamic problems, and an automatic time step size algorithm was designed according to the number of iterations of the two substeps of Bathe scheme. The procedures of rope mesh regeneration were also put forward, where only one variable-length element was always located at the top end of the rope, and the rest were all fixed-length elements. The proposed variable-length rope model and solution schemes were verified through comparison with the results of a tank experiment. Finally, the transient dynamics of a kind of BRG system was analyzed and discussed.</p
面向卷烟行业的主数据管理系统设计与应用
No full text针对卷烟行业的生产特点，面向卷烟行业的主数据管理系统的设计，采取当前主流的服务网格技术进行架构设计，对各应用系统共享的核心业务数据进行统一管理，对上游应用和下游应用设计接口适配器，实现主数据的更新可实时同步于各应用系统。该系统已在某卷烟企业应用，实现卷烟工业全产业链的互联互通，消除信息孤岛，有效提升卷烟生产过程数字化、自动化、精益化和智能化，加强企业资源配置和制造管控。</p
Underwater Image Reflection Removal Based on Smoothed Region Filling
No full text为了有效去除水下图像倒影,而不影响水下图像细节信息完备性,研究一种基于平滑化区域填充的水下图像倒影去除方法。通过Lab颜色模型和K-means聚类识别水下图像倒影区域,计算含倒影水下图像各个像素RGB颜色分量的最小值,并导进和含倒影水下图像的灰度图中,实现图像增强处理,在需填充区域中心设置一个符合平滑填充条件的窗口尺寸,基于平滑化区域填充去除倒影,保证倒影区域去除后,图像细节信息不出现严重缺失。研究结果显示,某水下图像倒影区域去除后,水下图像有价值细节与原图有价值细节相似度较高,信息量完备性显著,不存在颜色失真情况,图像细节信息较完备。</p
Transient Dynamic Analysis of A Variable-Length Rope-Driven Wave Energy System
No full textA new dynamic model of a variable-length rope, which could be used for the transient analysis of a buoy-rope-generator (BRG) wave energy system, was proposed in this paper. The model started from the basic dynamic equations of variable mass system, and took into account the physical properties such as axial force, shear and bending. According to the principle of D'Alembert-Lagrange, the equivalent integral weak formulation was firstly obtained, and through consistent linearization and isoparametric discretization, the finite element model of the variable-length rope was then derived. The Bathe scheme was employed to solve the model numerically, based on its excellent performance in solving nonlinear dynamic problems, and an automatic time step size algorithm was designed according to the number of iterations of the two substeps of Bathe scheme. The procedures of rope mesh regeneration were also put forward, where only one variable-length element was always located at the top end of the rope, and the rest were all fixed-length elements. The proposed variable-length rope model and solution schemes were verified through comparison with the results of a tank experiment. Finally, the transient dynamics of a kind of BRG system was analyzed and discussed
一种原子力显微镜多探针同时独立运动测量方法与装置
No full textThe present invention relates to a method and device for measuring the simultaneous and independent motion of a multiprobe of an atomic force microscope. The device comprises at least two cantilever arms arranged in parallel, wherein a tip is arranged at the tail end of each cantilever arm; and grating structures, which follow a periodic distribution law, are arranged on the surfaces of the cantilever arms and are used for reflecting lasers, which irradiate the grating structures, and for receiving the reflected lasers by means of reflected light detectors. In the present invention, the distinguishing and motion measurement of multiple probes at an ultra-short distance are realized by one set of optical path systems. The specific method involves making measurement lasers of different wavelengths pass through the same optical path and simultaneously irradiate the back faces of the multiple probes, using the grating structures of different feature sizes as physical tags of the multiple probes, and reflecting high-order reflected light of the lasers of different wavelengths by the grating structures at different angles, thereby achieving the purpose of separating the optical path
原子力显微镜一体化双探针快速原位切换测量方法与装置
No full textAn atomic force microscope based measurement method and device for rapid in-situ switching of an integrated double probe (100). The device comprises the double probe (100) formed of a hinge structure (1), two cantilever beams (2, 3), and tips (4, 5) arranged at free ends of the cantilever beams (2, 3). The hinge structure (1) is a U-shaped body. The two tail ends of the U-shaped body respectively extend to form the first cantilever beam (2) and the second cantilever beam (3). The free end of the first cantilever beam (2) and the free end of the second cantilever beam (3) are respectively provided with the first tip (4) and the second tip (5). The integrated double probe (100) is used, and the driving function of a probe clamp (200) is used for driving a working probe to work, and therefore, a rapid probe in-situ switching function of the double probe (100) can be realized only by means of one set of motion control and measurement system based on an atomic force microscope
一种甜菜收获机粮箱均布装置
No full text本发明涉及甜菜收获机技术领域,特别涉及一种甜菜收获机粮箱均布装置。包括转轴组件及沿轴向设置于转轴组件上的多组均布机构；转轴组件可转动地设置于甜菜收获机粮箱的顶部；均布机构套设于转轴组件上，且随转轴组件同步转动，从而将收获到甜菜收获机粮箱中的甜菜进行均布。均布机构包括可拆卸连接的均布组件Ⅰ和均布组件Ⅱ，均布组件Ⅰ和均布组件Ⅱ结构相同，均包括叶片支撑座及设置于叶片支撑座上的至少一个均布叶片。本发明提高了甜菜收获机粮箱的存储利用率，对已收获到甜菜收获机粮箱中的甜菜进行均布，并在均布时不对甜菜进行损坏，有效的保证甜菜收获质量
一种基于角接触球轴承装配线的接触角测量装置
No full text本发明属于轴承性能检测设备领域，具体地说是一种基于角接触球轴承装配线的接触角测量装置，包括底板、气浮转台部件、支撑立座、升降部件、移动座及用于测量接触角的测量部件。本发明通过采用气浮转台旋转带动待测轴承一起匀速旋转，可降低驱动部件对测量结果的影响，从而使测量数据更真实可靠，可以最大限度地排除回转驱动所带来的测量干扰；通过伺服电机和直线模组驱动，可精确控制移动座上下移动，导轨滑块结合直线模组保证了垂直方向Z向运动直线度高，使检测位置的重复性更好；通过测量部件的整体设置，测量部件与待测轴承接触冲击力小，传感器的使用寿命增长，振动小，因此也减少了因为振动引起的检测误差
一种基于贝叶斯网的气相色谱仪故障诊断方法
No full text本发明提供一种基于贝叶斯网的气相色谱仪故障诊断方法，包括如下步骤：(1)将气相色谱仪的维修记录按仪器工作时间以年分组；(2)分析每一组的故障及其症状，确定每一组贝叶斯网结构；(3)确定整体贝叶斯网结构；(4)将症状按发生可能及轻重程度分级；(5)统计每一组故障症状频数，确定每一组贝叶斯网参数；(6)确定整体贝叶斯网参数；(7)发生故障时，计算故障后验概率，定位故障。将维修记录分组，考虑了工作时间的影响，能够更准确定位故障；贝叶斯网有很强的推理能力，能够在发生故障时快速计算各故障的后验概率，根据最大后验概率准则定位故障