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Target recognition and detection system based on sensor and nonlinear machine vision fusion 基于传感器与非线性机器视觉融合的目标识别检测系统
Q2 ENGINEERING, MECHANICAL Pub Date : 2023-01-01 DOI: 10.1515/nleng-2022-0310
Hongbin Jia, Fanwen Yang, Tao Li, R. Suresh Kumar
Abstract In order to realize the automatic detection system of electric sensor, a method based on sensor and nonlinear machine vision is proposed. Aiming at complex scenes and dynamic changes in target recognition and detection in large-scale industrial field, a target recognition and detection system based on the fusion of vision sensor and nonlinear machine vision is proposed. The system introduces nonlinear features and uses deep neural network to realize multi-scale analysis and recognition of image data on the basis of traditional machine vision. The system uses C++ language development and has a good user interface. The photoelectric sensor weld image is collected by machine vision technology, the target area of the image is detected by Gaussian model, the feature points of the target area are extracted by combining Hessian matrix, the extracted feature points are input into the quantum gate neural network model, and the recognition results are obtained. The simulation results show that the author’s method has the highest value among the three test indicators, with the highest accuracy rate of 97%, the highest recall rate of 98%, and the highest F 1 value of 94. The time consumed by the author’s method for automatic identification of photoelectric sensor welding is within 6 s, the time spent on the film wall recognition method for automatic identification of photoelectric sensor welding is within 20 s, and the time spent by the feature extraction and identification method for automatic identification of photoelectric sensor weld is within 22 s. It has been proven that the method based on the fusion of sensors and nonlinear machine vision can achieve an automatic recognition and detection system for electrical sensor welds. The object detection and recognition method proposed in this article can be applied to dynamic changes and complex scenes in various complex backgrounds and has a good application prospect. The system proposed in this article has some limitations, such as the algorithm in the calculation accuracy, real-time, and other aspects that have room for improvement.
摘要为了实现电传感器的自动检测系统,提出了一种基于传感器和非线性机器视觉的方法。针对大规模工业领域中复杂场景和动态变化的目标识别与检测,提出了一种基于视觉传感器与非线性机器视觉融合的目标识别与检测系统。该系统在传统机器视觉的基础上引入非线性特征,利用深度神经网络实现图像数据的多尺度分析与识别。本系统采用c++语言开发,具有良好的用户界面。采用机器视觉技术采集光电传感器焊缝图像,采用高斯模型对图像的目标区域进行检测,结合Hessian矩阵提取目标区域的特征点,将提取的特征点输入量子门神经网络模型,得到识别结果。仿真结果表明,作者的方法在三个测试指标中具有最高的值,最高准确率为97%,最高召回率为98%,最高f1值为94。本文采用的光电传感器焊接自动识别方法耗时在6s以内,采用膜壁识别方法耗时在20s以内,采用特征提取与识别方法耗时在22s以内。实践证明,基于传感器与非线性机器视觉融合的方法可以实现电传感器焊缝的自动识别检测系统。本文提出的目标检测与识别方法可以应用于各种复杂背景下的动态变化和复杂场景,具有良好的应用前景。本文提出的系统存在一定的局限性,比如算法在计算精度、实时性等方面还有改进的空间。
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引用次数: 0
Numerical analysis of uneven settlement of highway subgrade based on nonlinear algorithm 基于非线性算法的公路路基不均匀沉降数值分析
IF 8.3 Q2 ENGINEERING, MECHANICAL Pub Date : 2023-01-01 DOI: 10.1515/nleng-2022-0253
Ang Gao, Mengxi Zhang, Shweta Sachdeva, Shavkatov Shavkatovich, Vishal Jagota, Shabnam Sayyad
Abstract In order to accurately and easily calculate the settlement of the foundation, a high-speed roadbed based on a nonlinear algorithm is proposed to broaden the uneven and uniform reduction numerical analysis. The basic loading test results of the foundation loading test results in a series of sand-bearing test results made by gear suppressive elastic Mohr–COMB were verified using general finite element procedure ABAQUS. The results show that for most original slopes of 1:1.5 highways, according to the above research results and relevant specifications, the high-wig ratio of the steps should be controlled in 1:1.2 to 1:1.5. That is, when the width is controlled in a range of about 1.2 m, the height of the step is held at 0.8–1.0 m. The larger the role of filling the top surface, the more obvious is the role of the geogrid to reduce the settlement of the road embankment. Under the conditions of the same subgraduation, the reinforced road embankment of the geotechnical grille, the settling effect that occurs in the load activity is also more obvious. This method offers a better design and construction technique for expanding the project, investigates the control of differential settlements caused by excavation step size and geogrid size, and seeks more complete, scientific programmes. It has the potential to drastically reduce the project’s investigation effort, shorten the survey cycle, and provide incalculable economic and social benefits. Therefore, the research results of this paper have improved the reliability of existing ground settlement analysis.
摘要为了准确方便地计算路基沉降,提出了一种基于非线性算法的高速路基沉降计算方法,拓宽了非均匀折减数值分析。采用通用有限元程序ABAQUS对齿轮抑制弹性Mohr-COMB系列承载试验结果中的基础加载试验结果进行了验证。结果表明:对于大多数1:1.5公路的原始坡度,根据上述研究成果及相关规范,高阶高程比应控制在1:1.2 ~ 1:1.5之间。即当宽度控制在1.2 m左右的范围内时,台阶高度保持在0.8-1.0 m。填充顶面作用越大,土工格栅减少路堤沉降的作用就越明显。在相同分段条件下,加筋路堤的土工格栅,在荷载活动下发生的沉降效果也更为明显。该方法为扩建工程提供了更好的设计和施工技术,研究了开挖步距和土工格栅尺寸引起的差异沉降的控制,并寻求更完整、更科学的方案。它有可能大大减少项目的调查工作量,缩短调查周期,并提供不可估量的经济和社会效益。因此,本文的研究结果提高了现有地面沉降分析的可靠性。
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引用次数: 0
Numerical simulation of Burgers’ equations via quartic HB-spline DQM 基于四次hb样条DQM的Burgers方程数值模拟
IF 8.3 Q2 ENGINEERING, MECHANICAL Pub Date : 2023-01-01 DOI: 10.1515/nleng-2022-0264
Mamta Kapoor
Abstract Via modified quartic hyperbolic B-spline DQM, Burgers’ equation is numerically approximated in the current study. Ten numerical instances are discussed, and the findings are compared with those already in existence and with exact results. Error norms are assessed, and findings are shown in tabular as well as graphical formats, to validate the resilience and applicability portion of established numerical system. Matrix stability analysis approach is used to discuss proposed scheme’s stability. The current plan is robust, precise, and simple to put into action.
摘要本文利用改进的四次双曲b样条DQM,对Burgers方程进行了数值逼近。讨论了十个数值实例,并与已有的计算结果进行了比较,得到了准确的结果。评估误差规范,并以表格和图形格式显示结果,以验证已建立的数字系统的弹性和适用性部分。采用矩阵稳定性分析方法讨论了所提方案的稳定性。目前的计划是稳健、精确和易于实施的。
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引用次数: 0
Nonlinear adaptive sliding mode control with application to quadcopters 非线性自适应滑模控制及其在四轴飞行器中的应用
IF 8.3 Q2 ENGINEERING, MECHANICAL Pub Date : 2023-01-01 DOI: 10.1515/nleng-2022-0268
Ryan Mathewson, F. Fahimi
Abstract Nonlinear adaptive sliding mode control (NASMC) has the capability to adequately control a system whose parameters are unknown to the controller designer. Conventional model-based controllers require a mathematical dynamic model of the system with known parameters. These system parameters are normally determined by extensive system identification experiments, which are expensive and time-consuming to perform. A NASMC approach that does not require known system parameters is proposed. Using NASMC, a controller designer can skip the expensive and time-consuming system parameter identification and fast-forward to the control implementation. In addition, once a controller is derived for a quadcopter using NASMC, the same controller will work on any quadcopter with the same equations of motion but different dynamic parameters. The formulation of the NASMC is presented for general second-order and fourth-order systems. Then, as an implementation example, the application of the general NASMC approach is demonstrated by applying it to a quadcopter unmanned aerial vehicle in simulation.
非线性自适应滑模控制(NASMC)具有对控制器设计者不知道参数的系统进行充分控制的能力。传统的基于模型的控制器要求系统具有已知参数的数学动态模型。这些系统参数通常是通过大量的系统识别实验来确定的,这些实验既昂贵又耗时。提出了一种不需要已知系统参数的NASMC方法。使用NASMC,控制器设计人员可以跳过昂贵且耗时的系统参数识别,并快速进入控制实现。此外,一旦使用NASMC为四轴飞行器导出了控制器,同一控制器将适用于具有相同运动方程但不同动态参数的任何四轴飞行器。给出了一般二阶和四阶系统的NASMC公式。然后,作为一个实现实例,将通用NASMC方法应用于四轴飞行器的仿真,验证了该方法的应用。
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引用次数: 1
Variational principles for a double Rayleigh beam system undergoing vibrations and connected by a nonlinear Winkler–Pasternak elastic layer 非线性温克勒-帕斯捷尔纳克弹性层连接的振动双瑞利梁系统的变分原理
IF 8.3 Q2 ENGINEERING, MECHANICAL Pub Date : 2023-01-01 DOI: 10.1515/nleng-2022-0259
S. Adali
Abstract Variational principles and variationally consistent boundary conditions are derived for a system of double Rayleigh beams undergoing vibrations and subject to axial loads. The elastic layer connecting the beams are modelled as a three-parameter nonlinear Winkler–Pasternak layer with the Winkler layer having linear and nonlinear components and Pasternak layer having only a linear component. Variational principles are derived for the forced and freely vibrating double beam system using a semi-inverse approach. Hamilton’s principle for the system is given and the Rayleigh quotients are derived for the vibration frequency of the freely vibrating system and for the buckling load. Natural and geometric variationally consistent boundary conditions are derived which leads to a set of coupled boundary conditions due to the presence of Pasternak layer connecting the beams.
摘要推导了双瑞利梁受轴向载荷振动系统的变分原理和变分一致边界条件。将连接梁的弹性层建模为三参数非线性温克勒-帕斯捷尔纳克层,其中温克勒层具有线性和非线性分量,而帕斯捷尔纳克层仅具有线性分量。采用半逆方法推导了受迫和自由振动双梁系统的变分原理。给出了系统的Hamilton原理,推导了自由振动系统的振动频率和屈曲载荷的瑞利商。导出了自然变分一致和几何变分一致的边界条件,由于存在连接梁的帕斯捷尔纳克层而导致了一组耦合的边界条件。
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引用次数: 0
New kink-periodic and convex–concave-periodic solutions to the modified regularized long wave equation by means of modified rational trigonometric–hyperbolic functions 用修正有理三角双曲函数求解修正正则长波方程的新扭周期解和凸凹周期解
IF 8.3 Q2 ENGINEERING, MECHANICAL Pub Date : 2023-01-01 DOI: 10.1515/nleng-2022-0307
M. Alquran, Omar Najadat, Mohammed Ali, S. Qureshi
Abstract The significance of different types of periodic solutions in nonlinear equations is vital across various practical applications. Our objective in this study was to uncover novel forms of periodic solutions for the modified regularized long wave equation. This particular model holds great importance in the realm of physics as it characterizes the propagation of weak nonlinearity and space-time dispersion waves, encompassing phenomena like nonlinear transverse waves in shallow water, ion-acoustic waves in plasma, and phonon waves in nonlinear crystals. By employing the methodology of modified rational sine-cosine and sinh–cosh functions, we successfully derived new kink-periodic and convex–concave-periodic solutions. To showcase the superiority of our proposed approach, we conducted a comparative analysis with the alternative Kudryashov-expansion technique. Furthermore, we visually depicted the diverse recovery solutions through 2D and 3D plots to enhance the understanding of our findings.
非线性方程中不同类型周期解的意义在各种实际应用中都是至关重要的。本研究的目的是揭示修正正则化长波方程周期解的新形式。这种特殊的模型在物理学领域具有重要意义,因为它表征了弱非线性和时空色散波的传播,包括浅水中的非线性横波,等离子体中的离子声波和非线性晶体中的声子波等现象。利用修正有理正弦余弦函数和sinh-cosh函数的方法,成功地导出了新的扭结周期解和凹凸周期解。为了展示我们提出的方法的优越性,我们与另一种kudryashov展开技术进行了比较分析。此外,我们通过2D和3D图直观地描述了不同的恢复方案,以增强对我们研究结果的理解。
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引用次数: 0
A comparative study for the numerical approximation of 1D and 2D hyperbolic telegraph equations with UAT and UAH tension B-spline DQM 用UAT和UAH张力b样条DQM进行一维和二维双曲电报方程数值逼近的比较研究
IF 8.3 Q2 ENGINEERING, MECHANICAL Pub Date : 2023-01-01 DOI: 10.1515/nleng-2022-0280
Mamta Kapoor
Abstract Two numerical regimes for the one- and two-dimensional hyperbolic telegraph equations are contrasted in this article. The first implemented regime is uniform algebraic trigonometric tension B-spline DQM, while the second implemented regime is uniform algebraic hyperbolic tension B-spline DQM. The resulting system of ODEs is solved by the SSP RK43 method after the aforementioned equations are spatially discretized. To assess the success of chosen tactics, a comparison of errors is shown. The graphs can be seen, and it is asserted that the precise and numerical results are in agreement with one another. Analyses of convergence and stability are also given. It should be highlighted that there is a dearth of study on 1D and 2D hyperbolic telegraph equations. This aim of this study is to efficiently create results with fewer mistakes. These techniques would surely be useful for other higher-order nonlinear complex natured partial differential equations, including fractional equations, integro equations, and partial-integro equations.
摘要本文对比了一维和二维双曲电报方程的两种数值形式。第一种实现形式为均匀代数三角张力b样条DQM,第二种实现形式为均匀代数双曲张力b样条DQM。将上述方程进行空间离散化后,用SSP RK43方法求解得到的ode系统。为了评估所选战术的成功,给出了错误的比较。图中可以看到,并断言,精度和数值结果是一致的。并给出了收敛性和稳定性分析。应该强调的是,目前缺乏对一维和二维双曲电报方程的研究。这项研究的目的是有效地创造更少错误的结果。这些技术对于其他高阶非线性复杂性质的偏微分方程,包括分数阶方程、积分方程和部分积分方程,肯定是有用的。
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引用次数: 0
Two-component excitation governance of giant wave clusters with the partially nonlocal nonlinearity 部分非局部非线性巨波簇的双分量激励治理
Q2 ENGINEERING, MECHANICAL Pub Date : 2023-01-01 DOI: 10.1515/nleng-2022-0319
Yi-Xiang Chen
Abstract Vector giant wave cluster solutions of (2+1)-dimensional coupled partially nonlocal nonlinear Schrödinger equation are found by means of a coupled relation with the Darboux method. These vector optical field components display different excitation governance behaviors. The effective distance in the coupled relation has a maximum. Comparing this maximum with the excited values at the location of the giant wave peaks in the cluster, the excitation governance of giant wave cluster is achieved.
摘要利用Darboux法求解(2+1)维耦合部分非局部非线性Schrödinger方程的向量巨浪群解。这些矢量光场分量表现出不同的励磁治理行为。耦合关系中的有效距离有一个最大值。将该最大值与簇中巨波峰位置的激励值进行比较,实现了对巨波簇的激励治理。
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引用次数: 1
A new optimal multistep optimal homotopy asymptotic method to solve nonlinear system of two biological species 求解两种生物非线性系统的一种新的最优多步最优同伦渐近方法
IF 8.3 Q2 ENGINEERING, MECHANICAL Pub Date : 2023-01-01 DOI: 10.1515/nleng-2022-0230
Z. Ayati, S. Pourjafar
Abstract Recently solving integro-differential equations have been the focus of attention among many researchers in the field of mathematic and engineering. The aim of current study is to apply the well-known optimal homotopy asymptotic method (OHAM) on a specific and famous model of these equations. It is illustrated that auxiliary functions and the number of Taylor series terms affect the accuracy of the solution. Hence, at first a solution has been found with an acceptable error by OHAM. Then, it has been continued to attain a better solution by Multistep optimal homotopy asymptotic method. All these processes had improved the precision of the solution. Auxiliary polynomials of two, three, and four degrees and different numbers of Taylor series term have been investigated to solve a nonlinear system derived by two biological species ‎living together. Ultimately, appropriate results with auxiliary polynomials of degree four and Taylor series with six terms have been obtained precisely. In addition, the error values decrease significantly compared to the other cases.
近年来,积分微分方程的求解一直是数学界和工程界研究的热点。本研究的目的是将著名的最优同伦渐近方法(OHAM)应用于这些方程的一个特定的著名模型。说明辅助函数和泰勒级数项的个数影响解的精度。因此,首先找到了一个具有可接受误差的解决方案。然后,利用多步最优同伦渐近方法得到了较好的解。所有这些过程都提高了溶液的精度。研究了二阶、三次和四次的辅助多项式和泰勒级数项的不同个数,以求解由两种生物共同生活的非线性系统。最后,精确地得到了四次辅助多项式和六项泰勒级数的适当结果。与其他情况相比,误差值明显减小。
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引用次数: 0
Research and implementation of non-linear management and monitoring system for classified information network 分类信息网络非线性管理与监控系统的研究与实现
IF 8.3 Q2 ENGINEERING, MECHANICAL Pub Date : 2023-01-01 DOI: 10.1515/nleng-2022-0254
Jun He
Abstract In order to better realize the secret-related information monitoring system, an algorithm based on a nonlinear network is proposed and is combined with the traditional algorithm. This article mainly analyzes the theory of nonlinear networks, designs and trains new network parameters according to their own needs, and combines the nonlinear network as a feature extractor with the existing intrusion detection and wandering detection algorithms, which greatly improves the recognition ability of traditional algorithms. The main feature of a nonlinear network is that it can extract the positional features of objects from the network while also extracting object features, that is, positioning and classification are realized in the same network. As a feature extractor, this network can not only have a higher recognition rate than background difference, hog, and other algorithms but also have a greater ability to extract position information than other convolutional neural networks. The successful application of nonlinear production network systems in TV stations at all levels has greatly improved the editing and production capability and efficiency of TV programs. How to ensure the safe, reliable, stable, orderly, and efficient operation of nonlinear production network systems requires vendors and TVS Taiwan technical staff to jointly conduct in-depth research and summarize their findings. In this article, from the perspective of TV users, information components in nonlinear production network systems are analyzed, including class, title management mode, storage space management, material management, security management, and workflow management in nonlinear systems. Make some analysis, discussion, and summaries of network system and operation management problems. The experimental results show that the nonlinear algorithm in this article has a significant advantage over the original tracking algorithm; that is, most tracking algorithms do not have the ability of category recognition during the initial tracking process, which means that these tracking algorithms cannot accurately know what they are tracking. Because the nonlinear network has the ability to output categories, whether it is initial tracking or tracking loss recovery, nonlinearity has fundamentally better advantages than other tracking algorithms. Therefore, it can be predicted that there is a strong recognition ability in the later monitoring and wandering detection. It has been proved that the nonlinear algorithm can be effectively applied to the secret information monitoring system.
摘要为了更好地实现涉密信息监控系统,提出了一种基于非线性网络的算法,并将其与传统算法相结合。本文主要分析了非线性网络的理论,根据自己的需要设计和训练新的网络参数,并将非线性网络作为特征提取器与现有的入侵检测和漫游检测算法相结合,大大提高了传统算法的识别能力。非线性网络的主要特点是可以在提取目标特征的同时,从网络中提取目标的位置特征,即在同一网络中实现定位和分类。作为特征提取器,该网络不仅具有比背景差分、hog等算法更高的识别率,而且具有比其他卷积神经网络更强的位置信息提取能力。非线性制作网络系统在各级电视台的成功应用,极大地提高了电视节目的编辑制作能力和效率。如何保证非线性生产网络系统安全、可靠、稳定、有序、高效地运行,需要厂商与TVS台湾技术人员共同进行深入研究,总结研究成果。本文从电视用户的角度,分析了非线性制作网络系统中的信息构成,包括非线性系统中的类别、标题管理模式、存储空间管理、素材管理、安全管理和工作流管理。对网络系统和运营管理问题进行分析、讨论和总结。实验结果表明,本文提出的非线性跟踪算法相对于原有的跟踪算法具有明显的优势;也就是说,大多数跟踪算法在最初的跟踪过程中不具备类别识别的能力,这意味着这些跟踪算法不能准确地知道自己在跟踪什么。由于非线性网络具有输出类别的能力,无论是初始跟踪还是跟踪损失恢复,非线性从根本上比其他跟踪算法具有更好的优势。因此,可以预见在后期的监测和流浪检测中有较强的识别能力。实验证明,该非线性算法可以有效地应用于保密信息监控系统。
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引用次数: 0
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Nonlinear Engineering - Modeling and Application
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