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2021 IEEE 4th International Conference on Information Systems and Computer Aided Education (ICISCAE)最新文献

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Application of Predictive PI and Multiple Cascade Control in Ordering-cylinder 预测PI和多串级控制在有序缸中的应用
Juchen Hong, Zhiping Fan, Zhengyun Ren
For the purpose of improving the stability of outlet temperature and the rapidness of temperature control system, a multi-cascade control scheme is designed based on the relationship between circulating wind and tobacco leaf temperature through the analysis of actual sampling values. The scheme adopts a three closed-loop strategy, the system model was identified by correlation analysis and the least square method, the inner and outer loop sub-controllers and the main controllers all use the predictive PI(Proportion Integration) controller. The simulation and practical application results show that comparing to the double cascade control, the multi-cascade control can effectively improve the response speed of the system, and the dynamic performance of the system. Among them, this scheme reduces the rise time by 40.4 % compared with the double-closed loop cascading system. The adverse effect of interference on the main circuit is further reduced by adding secondary circuit. Predictive PI algorithm may alleviate the large time delay of temperature control, and has good anti-interference and robustness. The overshoot after adding disturbance is only 86.3 % of the control system using fuzzy controller. This solution may provide support for accurately and stably controlling the outlet temperature of the ordering-cylinder.
为了提高出口温度的稳定性和温度控制系统的快速性,通过对实际采样值的分析,根据循环风与烟叶温度的关系,设计了多串级控制方案。该方案采用三闭环策略,通过相关分析和最小二乘法对系统模型进行辨识,内外环子控制器和主控制器均采用预测PI(比例积分)控制器。仿真和实际应用结果表明,与双串级控制相比,多串级控制能有效地提高系统的响应速度,改善系统的动态性能。其中,与双闭环级联系统相比,该方案的上升时间缩短了40.4%。通过增加次级电路,进一步减小了干扰对主电路的不利影响。预测PI算法可以缓解温度控制的大时延,具有良好的抗干扰性和鲁棒性。加入扰动后的超调量仅为模糊控制器控制系统的86.3%。该方案可为准确、稳定地控制定货筒出口温度提供支持。
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引用次数: 0
Single Base Station Positioning for Robots Based on Multiple Sensor Fusion 基于多传感器融合的机器人单基站定位
Yuanhao Ding, Lurong Jiang, Jiang Wu, Meng Li, Liwen Jing, Wei Li
With the development of technology, positioning systems have shifted from outdoor to indoor and from low precision to high precision. The indoor positioning has put forward greater demands on many applications including indoor robot navigation. Aiming at improving the accuracy, cost, and stability of indoor localization, this paper proposed a single base station positioning approach for robots based on the fusion of UWB, IMU, and encoder sensors. With the combination of several sensors, robots that carry UWB tags can achieve high accuracy localization and well robustness in an indoor environment. It has been validated in indoor corridors and passages. Compared with traditional multi-base station positioning methods, the approach which we proposed cuts the positioning cost and improves flexibility. Experiments are carried out to validate the localization performance. The results confirm that the average positioning errors can meet requirements in most indoor scenes.
随着技术的发展,定位系统已经从室外转向室内,从低精度转向高精度。室内定位对包括室内机器人导航在内的许多应用提出了更高的要求。为了提高室内定位的精度、成本和稳定性,本文提出了一种基于超宽带、IMU和编码器传感器融合的机器人单基站定位方法。通过多个传感器的组合,携带超宽带标签的机器人可以在室内环境中实现高精度定位和良好的鲁棒性。它已在室内走廊和通道中得到验证。与传统的多基站定位方法相比,该方法降低了定位成本,提高了定位的灵活性。通过实验验证了定位性能。结果表明,在大多数室内场景下,平均定位误差可以满足要求。
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引用次数: 1
Research on algorithm of personal navigation system based on adaptive vector particle filter 基于自适应矢量粒子滤波的个人导航系统算法研究
Shu Xu, Jiayu Liu
As the representative of many information technologies, navigation technology is quietly entering the details of human life. How to adapt to complex environment and fuse multi-sensor information to achieve more accurate positioning has become the key of navigation technology. Facing the requirements of high-precision and reliable positioning technology, aiming at the problems of low positioning accuracy and poor robustness caused by incomplete information of single source positioning technology, this paper focuses on the fusion positioning method of wireless signal, pedestrian dead reckoning (PDR) and map information based on particle filter (PF), and proposes an adaptive vector particle filter algorithm, A personal navigation (PND) system based on adaptive vector particle filter is designed, which can effectively improve the positioning performance. The experimental results show that the navigation results can correctly reflect the changing process of the attitude, speed and position of the pedestrian's foot. The position error of the navigation algorithm is positively correlated with the walking distance and the number of walking steps, and the relative error between the position error and the traveling distance is about 5%.
导航技术作为众多信息技术的代表,正悄然进入人类生活的细节。如何适应复杂的环境,融合多传感器信息,实现更精确的定位已成为导航技术的关键。面对高精度、可靠的定位技术要求,针对单源定位技术信息不完全导致定位精度低、鲁棒性差的问题,重点研究了基于粒子滤波(PF)的无线信号、行人航位推算(PDR)和地图信息的融合定位方法,提出了一种自适应矢量粒子滤波算法。设计了一种基于自适应矢量粒子滤波的个人导航系统,有效地提高了定位性能。实验结果表明,该导航结果能够正确反映行人脚的姿态、速度和位置的变化过程。导航算法的位置误差与行走距离和行走步数呈正相关,位置误差与行走距离的相对误差约为5%。
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引用次数: 0
Research on the Construction of Educational Data Quality Model Based on Multiple Constraints Model 基于多约束模型的教育数据质量模型构建研究
Jinming Du
With the development of Internet and information technology, data has become an important asset related to the development prospects of society and all walks of life. At present, there are many quality problems in the use of educational data, which has brought great obstacles to exerting the value of educational data. Only by using scientific statistical methods, obtaining real, objective, comprehensive, scientific and effective basic data, and carrying out systematic and comprehensive analysis on the obtained data, can we give full play to its command and decision-making role. The development of big data and artificial intelligence technology provides new ideas for the analysis and evaluation of educational data quality, and is committed to restoring the overall picture of the education system and promoting the change of regional educational ecology. In this paper, an educational data quality analysis model based on multiple constraint model is proposed, which classifies the data in the database, divides the information in the database into several different categories according to the data characteristics, and establishes a quality management system for educational data in universities, so as to effectively improve the quality of educational data.
随着互联网和信息技术的发展,数据已经成为关系到社会和各行各业发展前景的重要资产。目前,在教育数据的使用中存在着许多质量问题,这给教育数据价值的发挥带来了很大的障碍。只有运用科学的统计方法,获取真实、客观、全面、科学、有效的基础数据,并对获得的数据进行系统、全面的分析,才能充分发挥其指挥决策作用。大数据和人工智能技术的发展为教育数据质量的分析和评估提供了新的思路,致力于还原教育系统的全貌,推动区域教育生态的改变。本文提出了一种基于多约束模型的教育数据质量分析模型,对数据库中的数据进行分类,根据数据特征将数据库中的信息划分为几个不同的类别,建立高校教育数据质量管理体系,从而有效地提高教育数据的质量。
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引用次数: 0
Research on Application of Intelligent System Integration Based on Data Mining Technology 基于数据挖掘技术的智能系统集成应用研究
Rongjian Zhang
Data mining technology can accurately extract useful information from a large amount of information data, and also has the function of removing falsehood and preserving truth, so it has a very important application in intelligent system set. The essential condition of intelligent building is building intelligence, and the core of intelligent building system design is system integration. The main goal of intelligent building system integration is to realize information integration, and data warehouse technology is an effective solution to solve the problem of intelligent building information integration. Data mining technology is used to analyze and process various kinds of massive data and information, so as to realize the conversion from data to information and provide effective support for leaders' decision-making. The new model of building intelligent system integration based on data mining technology proposed in this paper has solved the compatibility and openness problems in the process of building intelligent system integration, and achieved the goal of safe and efficient building intelligent system.
数据挖掘技术能够从大量的信息数据中准确地提取出有用的信息,并且具有去虚和保真的功能,因此在智能系统集中有着非常重要的应用。智能建筑的本质条件是建筑智能化,而智能建筑系统设计的核心是系统集成。智能建筑系统集成的主要目标是实现信息集成,而数据仓库技术是解决智能建筑信息集成问题的有效解决方案。数据挖掘技术是对各类海量数据和信息进行分析和处理,实现数据到信息的转化,为领导者的决策提供有效支持。本文提出的基于数据挖掘技术的楼宇智能系统集成新模型,解决了楼宇智能系统集成过程中的兼容性和开放性问题,实现了楼宇智能系统安全高效的目标。
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引用次数: 0
Design of the Information Security System Based on the Encryption Mechanism 基于加密机制的信息安全系统设计
Shih Pan, Zhixuan Xiao
In the context of the accelerating process of information technology in the international society, information security has become the focus of attention of the whole society. How to ensure communication security in the application of information communication has become the main direction of research and exploration. Therefore, on the basis of understanding the good cryptographic system, this paper analyzes how to design the practical information security system for the two commonly used cryptographic algorithms.
在国际社会信息化进程不断加快的背景下,信息安全已成为全社会关注的焦点。在信息通信应用中如何保证通信安全已成为研究和探索的主要方向。因此,本文在了解好的密码系统的基础上,分析了如何针对两种常用的密码算法设计实用的信息安全系统。
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引用次数: 0
Research on Unstructured Mega Data Analysis Algorithm of Communication Network Based on Feature Fusion 基于特征融合的通信网络非结构化大数据分析算法研究
Gang Chen
In communication network mega data, unstructured data is characterized by large scale, diversity and timeliness. Traditional unstructured processing methods have been difficult to meet the data processing needs. Complex data sets and large data orders in modern mega data require professional analysis tools to realize analysis. Information fusion is a multi-source information processing technology, which can optimize and synthesize redundant information from multiple sensors in space and time, and obtain more accurate and complete values than single information source, and obtain the consistent description of the measured object. In order to effectively solve the problem of unstructured data model of communication network mega data, this paper proposes an algorithm for unstructured data analysis of communication network based on feature fusion, and analyzes the key problems in the process of unstructured data feature modeling, such as the storage of original data and feature data, the selection of feature space, information query and data visualization.
在通信网络大数据中,非结构化数据具有规模大、多样性和时效性等特点。传统的非结构化处理方法已经难以满足数据处理的需要。现代大数据中的复杂数据集和大数据订单需要专业的分析工具来实现分析。信息融合是一种多源信息处理技术,它可以对多个传感器在空间和时间上的冗余信息进行优化和综合,获得比单一信息源更准确和完整的值,并获得对被测物体的一致描述。为了有效解决通信网络大数据的非结构化数据建模问题,本文提出了一种基于特征融合的通信网络非结构化数据分析算法,分析了非结构化数据特征建模过程中的关键问题,如原始数据和特征数据的存储、特征空间的选择、信息查询和数据可视化等。
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引用次数: 1
Data security management of logistics network based on blockchain technology 基于区块链技术的物流网络数据安全管理
WeiSheng Wen, Jun Ma, Shuqin Liu
The logistics network is composed of lines and nodes. The traditional logistics is too centralized, so it is necessary to try “decentralization” to reduce the management difficulty and operational risk. This paper proposes a security data management method based on blockchain to manage distributed logistics network system. Through IOT technology, the warehouse will be connected by tagging individual items and operating hardware to improve the transparency and localization of all assets. The client of IOT node encrypts the logistics transaction data and uploads it to the blockchain to ensure the privacy and unforgeability of the logistics information, so that the encrypted data can be decrypted by the system nodes and uploaded to the blockchain through the logistics network. According to the experiment of school enterprise cooperation enterprise, this is a sharing framework with high security and high availability.
物流网络由线路和节点组成。传统物流过于集中,有必要尝试“去中心化”,以降低管理难度和经营风险。提出了一种基于区块链的分布式物流网络系统安全数据管理方法。通过物联网技术,仓库将通过标记单个物品和操作硬件连接起来,以提高所有资产的透明度和本地化。物联网节点的客户端对物流交易数据进行加密并上传到区块链,保证物流信息的保密性和不可伪造性,使加密后的数据可以被系统节点解密,并通过物流网络上传到区块链。根据校企合作企业的实验,这是一个具有高安全性和高可用性的共享框架。
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引用次数: 0
Research on Multimodal Human Behavior Recognition Based on Double Flow Network 基于双流网络的多模态人类行为识别研究
Xiao Bao
How to use computer vision technology to automatically identify and analyze human behavior in video has become a research hotspot. In traditional behavior recognition methods, features need to be extracted manually, and the recognition effect of features largely depends on the experience of feature designers. This paper takes the dual-stream convolutional neural network as the basic theory, and uses the TSN (Temporal Segment Networks) model as the basic framework to analyze the shortcomings and shortcomings of the single-stream network and the original dual-stream network. A multi-modal human behavior recognition model based on dual-stream network is proposed. In order to extract video-level features effectively, this model adopts two attention mechanisms, which are used to learn image frame features and video-level feature transfer. Then, CNN is used to extract global motion features, and finally, it is fused with spatio-temporal features. The fusion feature is evaluated on the public data set, and the results show that the two features are complementary, and their fusion makes the features more expressive, and the recognition result on the public data set is greatly improved compared with the single spatio-temporal feature.
如何利用计算机视觉技术对视频中的人类行为进行自动识别和分析已成为研究热点。在传统的行为识别方法中,特征需要人工提取,特征的识别效果很大程度上取决于特征设计者的经验。本文以双流卷积神经网络为基础理论,以TSN (Temporal Segment Networks)模型为基本框架,分析了单流网络和原有双流网络的缺点和不足。提出了一种基于双流网络的多模态人体行为识别模型。为了有效地提取视频级特征,该模型采用了两种注意机制,分别用于学习图像帧特征和转移视频级特征。然后利用CNN提取全局运动特征,最后与时空特征融合。在公共数据集上对融合特征进行了评价,结果表明,两种特征是互补的,它们的融合使特征更具表现力,在公共数据集上的识别结果比单一时空特征有了很大的提高。
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引用次数: 0
Random time delay analysis of Nb2O5 and OTS memristors Nb2O5和OTS忆阻器的随机时延分析
Zhong Ma, Hongqi Yu, Shiqing Zhang, Yi Sun, Jietao Diao, Day-Uei Li
Memristors show excellent ductility and low power consumption. They have broad applications in logic circuits, neuromorphic computing and non-volatile memory. Memristors show great potential in true random number generation (TRNG). To verify memristors' randomness, we made two kinds of memristors, measured the randomness of their delays, and investigated their different randomness mechanisms. We did thousands of experiments and verified the feasibility of making a new TRNG using these two kinds of memristors. We also found a new application of memristors to make non-linear device.
忆阻器具有良好的延展性和低功耗。它们在逻辑电路、神经形态计算和非易失性存储器中有着广泛的应用。忆阻器在真随机数生成(TRNG)中显示出巨大的潜力。为了验证忆阻器的随机性,我们制作了两种忆阻器,测量了它们延迟的随机性,并研究了它们不同的随机性机制。我们做了数千次实验,验证了使用这两种忆阻器制作新的TRNG的可行性。我们还发现了忆阻器在非线性器件中的新应用。
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引用次数: 1
期刊
2021 IEEE 4th International Conference on Information Systems and Computer Aided Education (ICISCAE)
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