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3D Maps Integration based on Overlapping Regions Matching 基于重叠区域匹配的三维地图集成
Q4 Engineering Pub Date : 2022-05-21 DOI: 10.14313/jamris/3-2021/20
M. Drwiega
This paper presents a method of 3D maps integration based on overlapping regions detection and matching. The algorithm works without an initial guess about transformation. The process of finding transformation between maps can be divided into two steps. The first one is the estimation of an initial transformation based on feature extraction, description, and matching. The assumption is that the maps have an overlapping area that can be used during feature based processing. Then the found initial solution is corrected using local methods, for example, Iterative Closest Point (ICP) algorithm. The maps are stored in the octree based representation (octomaps) but during transformation estimation, a point cloud representation is used as well. In addition, the presented method was verified in various experiments: in a simulation, with wheeled robots, and with publicly available datasets. Eventually, the solution can be applied to many robotic applications related to the exploration of unknown environments. Nevertheless, so far the implemented method was validated with a group of wheeled robots.
提出了一种基于重叠区域检测与匹配的三维地图集成方法。该算法无需对转换进行初始猜测即可工作。寻找映射间转换的过程可以分为两个步骤。第一个是基于特征提取、描述和匹配的初始变换估计。假设地图有一个重叠的区域,可以在基于特征的处理过程中使用。然后使用局部方法,如迭代最近点(ICP)算法,对找到的初始解进行校正。映射存储在基于八叉树的表示(octomaps)中,但在转换估计期间,也使用点云表示。此外,所提出的方法在各种实验中得到了验证:在模拟、轮式机器人和公开可用的数据集中。最终,该解决方案可以应用于许多与探索未知环境相关的机器人应用。然而,到目前为止,所实现的方法在一组轮式机器人上得到了验证。
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引用次数: 0
System Identification and Heuristic Control of Segmented Ailerons for Enhanced Stability of Fixed Wing UAVs 固定翼无人机分段副翼系统辨识与启发式控制
Q4 Engineering Pub Date : 2022-05-21 DOI: 10.14313/jamris/3-2021/14
Abdul Sattar, Liuping Wang, A. Mohamed, A. Fisher
Different from conventional aircraft, an investigation on system identification and control design has been carried out on a small fixed wing unmanned aerial vehicle (UAV) with a multi-segment ailerons. The multi-segment aileron setup is configured as a multi-input and single-output system and each segment is modeled as a control input. Experiments are conducted in a wind tunnel to determine the frequency responses of the system and the corresponding transfer functions. Multiple PID controllers are designed and implemented in a cascaded form for each control surface. Furthermore, a heuristic switching control strategy is implemented for the aircraft where the multi-segment ailerons perform as a single-segment aileron in a normal flight condition, and adapts to multi-segment control when encountering severe turbulence or a large angle reference change. Experimental results reveal that although each control surface has the capability for stabilization of the aircraft, the proposed control strategy by combining the multiple actuation surfaces reduces the mean squared errors for the roll angle up to $37$ percent in the highly turbulent environment providing superior disturbance rejection properties to the aircraft.
与常规飞机不同,对小型多段副翼固定翼无人机进行了系统辨识与控制设计研究。多节段副翼装置被配置为一个多输入单输出系统,每个节段被建模为一个控制输入。在风洞中进行了试验,确定了系统的频率响应和相应的传递函数。多个PID控制器设计和实现在一个级联形式的每个控制面。此外,针对飞机在正常飞行状态下多段副翼作为单段副翼的情况,提出了一种启发式切换控制策略,以适应飞机在遇到强湍流或大角度参考变化时的多段控制。实验结果表明,虽然每个控制面都具有稳定飞机的能力,但通过组合多个驱动面,所提出的控制策略在高湍流环境下将滚转角的均方误差降低了37%,为飞机提供了优越的抗扰性能。
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引用次数: 0
Risk Analysis Method by the Extreme Data of Dependent Exogenous Variables 因外生变量极值数据的风险分析方法
Q4 Engineering Pub Date : 2022-05-21 DOI: 10.14313/jamris/3-2021/18
Ihor Tereshchenko, A. Tereshchenko, N. Bilous, S. Shtangey, Z. Warsza
Many practical tasks of data multivariate statistical analysis from the standpoint of a risk-oriented process approach (in accordance with ISO 9001: 2015, 31000: 2018) requires the definition of the risk values for the dependent exogenous variables of some processes. This paper proposes the method, which consist of original stages sequence for calculating value-at-risk (VaR) or conditional-value-at-risk (CVaR) of dependent exogenous variables, presented of the extreme data frame of critical manufacture process parameters or other parameters, for example, extreme data of environmental monitoring and etc. Risk analysis method by the extreme data of dependent exogenous variables, presented of the data matrix, uses the result of solving the formalized problem of defines the tails parameters of the joint distributions of exogenous variables as components of a bivariate random variable. It can be argued that the tails parameters of the joint distributions of dependent exogenous variables make the validated corrections of the VaR and CVaR estimates for such variables. This method expands the practical application of extreme value theory for the value at risk analysis of any dependent variables as process parameters.
从风险导向过程方法的角度来看,数据多元统计分析的许多实际任务(根据ISO 9001: 2015, 31000: 2018)需要定义某些过程的外生变量的风险值。本文提出了一种计算外生因变量风险值(VaR)或条件风险值(CVaR)的原始阶段序列的方法,该方法以制造关键工艺参数或其他参数的极端数据框架为例,如环境监测的极端数据等。外生因变量极值数据的风险分析方法,以数据矩阵的形式表示,利用外生变量联合分布尾部参数作为二元随机变量组成部分的形式化问题的求解结果。可以认为,因缘外生变量联合分布的尾部参数对这些变量的VaR和CVaR估计进行了有效的修正。该方法扩展了极值理论在作为工艺参数的任何因变量的风险值分析中的实际应用。
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引用次数: 0
A Cryptographic Security Mechanism for Dynamic Groups for Public Cloud Environments 公共云环境下动态组的加密安全机制
Q4 Engineering Pub Date : 2022-05-01 DOI: 10.14313/jamris/2-2022/15
Sheenal Malviya, Sourabh Dave, K. C. Bandhu, R. Litoriya
Abstract Cloud computing has emerged as a significant technology domain, primarily due to the emergence of big data, machine learning, and quantum computing applications. While earlier, cloud computing services were focused mainly on providing storage and some infrastructures/platforms for applications, the need to advance computational power analysis of massive datasets. It has made cloud computing almost inevitable from most client-based applications, mobile applications, or web applications. The allied challenge to protect data shared from and to cloud-based platforms has cropped up with the necessity to access public clouds. While conventional cryptographic algorithms have been used for securing and authenticating cloud data, advancements in cryptanalysis and access to faster computation have led to possible threats to the traditional security of cloud mechanisms. This has led to extensive research in homomorphic encryption pertaining to cloud security. In this paper, a security mechanism is designed targeted towards dynamic groups using public clouds. Cloud security mechanisms generally face a significant challenge in terms of overhead, throughput, and execution time to encrypt data from dynamic groups with frequent member addition and removal. A two-stage homomorphic encryption process is proposed for data security in this paper. The performance of the proposed system is evaluated in terms of the salient cryptographic metrics, which are the avalanche effect, throughput, and execution time. A comparative analysis with conventional cryptographic algorithms shows that the proposed system outperforms them regarding the cryptographic performance metrics.
云计算已经成为一个重要的技术领域,主要是由于大数据、机器学习和量子计算应用的出现。虽然早些时候,云计算服务主要侧重于为应用程序提供存储和一些基础设施/平台,但需要提高对大规模数据集的计算能力分析。它使得云计算几乎不可避免地出现在大多数基于客户端的应用程序、移动应用程序或web应用程序中。随着访问公共云的必要性的出现,保护与基于云的平台共享的数据的挑战也随之出现。虽然传统的加密算法已被用于保护和验证云数据,但密码分析的进步和访问更快的计算已经导致对云机制的传统安全性的可能威胁。这导致了与云安全相关的同态加密的广泛研究。本文针对使用公共云的动态组设计了一种安全机制。在频繁添加和删除成员的动态组中对数据进行加密时,云安全机制通常面临着开销、吞吐量和执行时间方面的重大挑战。提出了一种用于数据安全的两阶段同态加密方法。所提出的系统的性能是根据显著的加密指标来评估的,这些指标是雪崩效应、吞吐量和执行时间。与传统加密算法的比较分析表明,该系统在加密性能指标方面优于传统算法。
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引用次数: 1
‘It is Really Interesting How that Small Robot Impacts Humans.’ The Exploratory Analysis of Human Attitudes Toward the Social Robot Vector in Reddit and Youtube Comments “这个小机器人如何影响人类真的很有趣。人类对Reddit和Youtube评论中社交机器人向量的态度的探索性分析
Q4 Engineering Pub Date : 2022-05-01 DOI: 10.14313/jamris/2-2022/10
Paweł Łupkowski, Olga Danilewicz, Dawid Ratajczyk, A. Wasielewska
Abstract We present the results of an exploratory analysis of human attitudes toward the social robot Vector. The study was conducted on natural language data (2,635 comments) retrieved from Reddit and YouTube. We describe the tag-set used and the (manual) annotation procedure. We present and compare attitude structures mined from Reddit and YouTube data. Two main findings are described and discussed: almost 20% of comments from both Reddit and YouTube consist of various manifestations of attitudes toward Vector (mainly attribution of autonomy and declaration of feelings toward Vector); Reddit and YouTube comments differ when it comes to revealed attitude structure – the data source matters for attitudes studies.
摘要:我们提出了人类对社交机器人向量的态度的探索性分析结果。这项研究是对从Reddit和YouTube上检索的自然语言数据(2635条评论)进行的。我们描述了所使用的标记集和(手动)注释过程。我们展示并比较了从Reddit和YouTube数据中挖掘出来的态度结构。本文描述和讨论了两个主要发现:Reddit和YouTube上近20%的评论包含了对Vector的各种态度表现(主要是自主性归属和对Vector的感情宣言);当谈到揭示的态度结构时,Reddit和YouTube的评论是不同的——态度研究的数据来源很重要。
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引用次数: 0
Factor Analysis of the Polish Version of Godspeed Questionnaire (GQS) 波兰版GQS问卷的因子分析
Q4 Engineering Pub Date : 2022-05-01 DOI: 10.14313/jamris/2-2022/13
R. Szczepanowski, Tomasz Niemiec, E. Cichoń, K. Arent, Marcin Florkowski, Janusz Sobecki
Abstract The rapid development of robotics involves human-robot interaction (HRI). It is a necessary to assess user satisfaction to develop HRI effectively. Thus, HRI calls for interdisciplinary research, including psychological instruments such as survey questionnaire design. Here, we present a factor analysis of a Polish version of the Godspeed Questionnaire (GSQ) used to measure user satisfaction. The questionnaire was administered to 195 participants. Then, factor analysis of the GSQ was performed. Finally, reliability analysis of the Polish version of the GSQ was done. The adapted version of the survey was characterized by a four-factor structure, i.e., anthropomorphism, perceived intelligence, likeability, and perceived safety, with good psychometric properties.
机器人技术的快速发展涉及人机交互(HRI)。为有效开展人力资源调查,对用户满意度进行评估是必要的。因此,人力资源研究所需要跨学科的研究,包括心理工具,如调查问卷设计。在这里,我们提出了一个波兰版本的Godspeed问卷(GSQ)的因素分析,用于测量用户满意度。195名参与者参与了问卷调查。然后,对GSQ进行因子分析。最后,对波兰版GSQ进行了可靠性分析。该调查的改编版本以四因素结构为特征,即拟人化、感知智力、受欢迎程度和感知安全性,具有良好的心理测量特性。
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引用次数: 1
Application of the OpenCV library in indoor hydroponic plantations for automatic height assessment of plants OpenCV库在室内水培人工林植物高度自动评估中的应用
Q4 Engineering Pub Date : 2022-05-01 DOI: 10.14313/jamris/2-2022/16
Sławomir Pietrzykowski, Artur Wymysłowski
Abstract This paper presents a method for automatically measuring plants’ heights in indoor hydroponic plantations using the OpenCV library and the Python programming language. Using the elaborated algorithm and Raspberry Pi-driven system with an external camera, the growth process of multiple pak choi cabbages (Brassica rapa L. subsp. Chinensis) was observed. The main aim and novelty of the presented research is the elaborated algorithm, which allows for observing the plants’ height in hydroponic stations, where reflective foil is used. Based on the pictures of the hydroponic plantation, the bases of the plants, their reflections, and plants themselves were separated. Finally, the algorithm was used for estimating the plants’ heights. The achieved results were then compared to the results obtained manually. With the help of a ML (Machine Learning) approach, the algorithm will be used in future research to optimize the plants’ growth in indoor hydroponic plantations.
摘要本文提出了一种基于OpenCV库和Python编程语言的室内水培人工林植物高度自动测量方法。利用该算法和带外接摄像头的树莓派驱动系统,对多种白菜的生长过程进行了研究。观察了中华绒螯蟹(Chinensis)。提出的研究的主要目的和新颖之处在于详细的算法,该算法允许在使用反射箔的水培站观察植物的高度。根据水培人工林的图片,将植物的基础、植物的反射和植物本身分开。最后,利用该算法对植物高度进行估计。然后将获得的结果与手动获得的结果进行比较。在ML(机器学习)方法的帮助下,该算法将用于未来的研究,以优化室内水培种植园的植物生长。
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引用次数: 0
Technology Acceptance in Learning History Subject Using Augmented Reality Towards Smart Mobile Learning Environment: Case in Malaysia 利用增强现实技术在智能移动学习环境中学习历史学科的技术接受度:马来西亚案例
Q4 Engineering Pub Date : 2022-05-01 DOI: 10.14313/jamris/2-2022/12
H. Suhaimi, N. Aziz, E. N. Mior Ibrahim, W. A. R. Wan Mohd Isa
Abstract In alignment with smart city initiatives, Malaysia is shifting its educational landscape to a smart learning environment. The Ministry of Education (MoE) has made History a mandatory subject for passing the Malaysian Certificate of Education to grow awareness and instil patriotism among Malaysian students. However, History has been known as one of the difficult subjects to study for many students. On the other hand, the Malaysian Government Education Blueprint 2013-2025 seeks to “leverage ICT scale up quality learning” across the country. Therefore, this study aims to identify the factors that influence the intention to use Augmented Reality (AR) for mobile learning in learning History subject among secondary school students in Malaysia. Quantitative approach has been chosen as the research method for this study. A direct survey was conducted on 400 secondary school students in one of the smart cities in Malaysia as the target respondents. The collected data are analysed through descriptive statistics and Multiple Linear Regression analysis by using Statistical Package for the Social Sciences. Based on the results, the identified factors that influence the intention to use AR for mobile learning in learning History subject are Gender, Perceived Usefulness, Perceived Enjoyment, and Attitude Towards Use. The identified factors can be a good reference for schools and teachers to strategize their teaching and learning methods in pertaining to History subject among secondary school students in Malaysia. Future studies may include the study of various types of schools in Malaysia and explore more moderating effects of demographic factors.
与智慧城市倡议一致,马来西亚正在将其教育景观转变为智能学习环境。马来西亚教育部已将历史列为通过马来西亚教育证书的必修科目,以提高马来西亚学生的意识并灌输爱国主义。然而,对于许多学生来说,历史一直被认为是最难学习的科目之一。另一方面,马来西亚政府《2013-2025年教育蓝图》寻求在全国范围内“利用信息通信技术扩大优质学习”。因此,本研究旨在找出影响马来西亚中学生在学习历史科目时使用增强现实(AR)进行移动学习意愿的因素。本研究选择定量方法作为研究方法。我们直接调查了马来西亚一个智慧城市的400名中学生作为目标受访者。利用社会科学统计软件包对收集到的数据进行描述性统计和多元线性回归分析。基于研究结果,确定了影响历史学科中使用AR进行移动学习意愿的因素为性别、感知有用性、感知享受和使用态度。确定的因素可以为学校和教师制定马来西亚中学生历史课程的教学策略提供很好的参考。未来的研究可能包括对马来西亚各种类型学校的研究,并探索人口因素的更多调节作用。
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引用次数: 0
Machine Learning and Artificial Intelligence Techniques for Detecting Driver Drowsiness 检测驾驶员困倦的机器学习和人工智能技术
Q4 Engineering Pub Date : 2022-05-01 DOI: 10.14313/jamris/2-2022/17
Prathap Rudra Boppuru, Pradeep Kumar Kukatlapalli, Cherukuri Ravindranath Chowdary
Abstract The number of automobiles on the road grows in lockstep with the advancement of vehicle manufacturing. Road accidents appear to be on the rise, owing to this growing proliferation of vehicles. Accidents frequently occur in our daily lives, and are the top ten causes of mortality from injuries globally. It is now an important component of the worldwide public health burden. Every year, an estimated 1.2 million people are killed in car accidents. Driver drowsiness and weariness are major contributors to traffic accidents this study relies on computer software and photographs, as well as a Convolutional Neural Network (CNN), to assess whether a motorist is tired. The Driver Drowsiness System is built on the Multi-Layer Feed-Forward Network concept CNN was created using around 7,000 photos of eyes in both sleepiness and non-drowsiness phases with various face layouts. These photos were divided into two datasets: training (80% of the images) and testing (20% of the images). For training purposes, the pictures in the training dataset are fed into the network. To decrease information loss as much as feasible, backpropagation techniques and optimizers are applied. We developed an algorithm to calculate ROI as well as track and evaluate motor and visual impacts.
随着汽车制造业的发展,道路上的汽车数量也在不断增长。由于车辆的激增,道路交通事故似乎呈上升趋势。事故经常发生在我们的日常生活中,是全球伤害死亡的十大原因。它现在是全世界公共卫生负担的一个重要组成部分。据估计,每年有120万人死于车祸。司机困倦和疲劳是造成交通事故的主要原因。这项研究依靠计算机软件和照片,以及卷积神经网络(CNN)来评估司机是否疲劳。CNN使用了大约7000张不同面部布局的眼睛在困倦和非困倦阶段的照片。这些照片被分为两个数据集:训练(80%的图像)和测试(20%的图像)。为了训练目的,训练数据集中的图片被输入到网络中。为了尽可能地减少信息损失,应用了反向传播技术和优化器。我们开发了一种算法来计算ROI以及跟踪和评估运动和视觉影响。
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引用次数: 0
A Cloud-Based Urban Monitoring System by Using a Quadcopter and Intelligent Learning Techniques 基于四轴飞行器和智能学习技术的云城市监测系统
Q4 Engineering Pub Date : 2022-05-01 DOI: 10.14313/jamris/2-2022/11
S. Khanmohammadi, M. Samadi
Abstract The application of quadcopter and intelligent learning techniques in urban monitoring systems can improve flexibility and efficiency features. This paper proposes a cloud-based urban monitoring system that uses deep learning, fuzzy system, image processing, pattern recognition, and Bayesian network. The main objectives of this system are to monitor climate status, temperature, humidity, and smoke, as well as to detect fire occur-rences based on the above intelligent techniques. The quadcopter transmits sensing data of the temperature, humidity, and smoke sensors, geographical coordinates, image frames, and videos to a control station via RF communications. In the control station side, the monitoring capabilities are designed by graphical tools to show urban areas with RGB colors according to the predetermined data ranges. The evaluation process illustrates simulation results of the deep neural network applied to climate status and effects of the sensors’ data changes on climate status. An illustrative example is used to draw the simulated area using RGB colors. Furthermore, circuit of the quadcopter side is designed using electric devices.
四轴飞行器和智能学习技术在城市监控系统中的应用,可以提高城市监控系统的灵活性和高效性。本文提出了一种基于云的城市监控系统,该系统采用了深度学习、模糊系统、图像处理、模式识别和贝叶斯网络。该系统的主要目标是监测气候状况、温度、湿度和烟雾,并基于上述智能技术检测火灾发生。四轴飞行器通过射频通信将温度、湿度、烟雾传感器、地理坐标、图像帧和视频的传感数据传输到控制站。在控制站侧,通过图形化工具设计监控功能,根据预定的数据范围用RGB颜色显示城区。评估过程说明了深度神经网络应用于气候状态的模拟结果以及传感器数据变化对气候状态的影响。一个说明性的例子是使用RGB颜色绘制模拟区域。此外,利用电子器件设计了四轴飞行器侧电路。
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引用次数: 0
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Journal of Automation, Mobile Robotics and Intelligent Systems
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