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2021 2nd International Symposium on Computer Engineering and Intelligent Communications (ISCEIC)最新文献

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Design and Realization of Drum Level Control System for 300MW Unit 300MW机组汽包液位控制系统的设计与实现
Yihan Wang
The drum water level is a very important operating parameter of a drum boiler, and it is also a sign of whether the boiler steam system is balanced. Maintaining the water level of the steam drum within a certain allowable range is a necessary condition to ensure the safe operation of boilers and steam turbines. Excessive water levels will affect the normal operation of the steam separator, and the steam quality will deteriorate. When the superheater tube wall and the steam turbine blade become fouled seriously, it will cause the steam to carry water and cause the steam turbine water impact to damage the equipment. If the water level is too low, the water circulation will be destroyed, and in severe cases, the water wall pipe will be deformed and burst. Therefore, the water level control of the steam drum has always received great attention. For the control of the water level of the steam drum, the motivation is to adapt the boiler water supply to the boiler's evaporation capacity, maintain the steam drum water level within the specified range, and at the same time maintain a stable water supply flow.
汽包水位是汽包锅炉非常重要的运行参数,也是锅炉蒸汽系统是否平衡的标志。汽包水位保持在一定的允许范围内,是保证锅炉、汽轮机安全运行的必要条件。水位过高会影响蒸汽分离器的正常运行,使蒸汽质量变差。当过热器管壁与汽轮机叶片发生严重污染时,会造成蒸汽携水,造成汽轮机水冲击损坏设备。如果水位过低,则会破坏水循环,严重时还会造成水壁管变形爆裂。因此,汽包的水位控制一直受到人们的高度重视。对于汽包水位的控制,动机是使锅炉给水适应锅炉的蒸发量,使汽包水位保持在规定的范围内,同时保持稳定的供水流量。
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引用次数: 0
Pose estimation for monocular image object using convolution neural network 基于卷积神经网络的单眼图像目标位姿估计
Hangyu Li, Han Wu, Zhilong Zhang, Chuwei Li
Obtaining the accurate position and attitude of the object is the key to realize rendezvous and docking, on-orbit maintenance and other related tasks of space spacecraft. However, for non-cooperative objects, they lack prearranged cooperation sign, which would make it much more difficult to estimate their pose. Therefore, this paper attempts to use the powerful feature learning ability of neural network to establish the mapping relationship between the object in image and its current pose, then regresses the pose parameters of the object from a monocular image. Finally, we tested and verified the network on the public satellite dataset called Speed. The results showed that the translation error was 0.1237 and the rotation error was 0.1335.
准确获取目标的位置和姿态是实现航天器交会对接、在轨维护等相关任务的关键。然而,对于非合作对象,他们缺乏预先安排的合作符号,这将使他们的姿态更难估计。因此,本文试图利用神经网络强大的特征学习能力,建立图像中目标与其当前姿态之间的映射关系,然后从单眼图像中回归目标的姿态参数。最后,我们在名为Speed的公共卫星数据集上对网络进行了测试和验证。结果表明,平移误差为0.1237,旋转误差为0.1335。
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引用次数: 0
Real-time Person Tracking and Re-identification Based on Feature Matching 基于特征匹配的实时人员跟踪与再识别
Hang Zou, Yan Zhang, Yin Zhang, Xian Jiang, Ligang Dong
The existing video-oriented person tracking and re- recognition research are all based on face recognition, which cannot meet the requirements of high continuity and high accuracy. In order to solve this problem, this paper propose a tracking and re-identification scheme based on KM (Kuhn- Munkras) algorithm. When tracking a person, this scheme establishes the connection between the face image observed in real time, the face database, and the human body image observed in real time to determine their identity. During tracking person, the appearance characteristics can be captured all the time, and the recognition of person has high real-time performance and high continuity. In the tracking process, a real-time updated person information cache list is established to realize the re- identification function after the person tracking is interrupted for a long time.
现有的面向视频的人物跟踪和再识别研究都是基于人脸识别的,无法满足高连续性和高精度的要求。为了解决这一问题,本文提出了一种基于KM (Kuhn- Munkras)算法的跟踪和再识别方案。该方案在跟踪人时,将实时观察到的人脸图像、人脸数据库和实时观察到的人体图像建立联系,确定其身份。在跟踪人的过程中,可以随时捕捉到人的外观特征,对人的识别具有较高的实时性和连续性。在跟踪过程中,建立实时更新的人员信息缓存列表,实现人员跟踪长时间中断后的重新识别功能。
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引用次数: 0
A Multi-Mode Learning Behavior Real-time Data Acquisition Method Based on Data Quality 基于数据质量的多模式学习行为实时数据采集方法
Zhenwei Zhang, Wenyan Wu, Dongjie Wu
With the rapid development of new technologies such as artificial intelligence, big data, and the Internet of Things, many researchers have probed into the study of learning analysis, trying to solve the problems of teaching by analyzing the learning behavior data from learning process. And in many learning behavior research, the sensor network usually consists of a host of mutually independent data sources, which can be used to monitor measured objects from multiple dimensions thereby obtaining the multi-source multi-modal sensory data. However, there still exist false negative readings, false positive readings and environmental interference, etc. Therefore, we propose a multi-source multimode sensory data acquisition method based on Date Quality(DQ). We first define the data quality in terms of four aspects-accuracy, integrity, consistency and instantaneity. Then, by the modeling there aspects respectively, we propose metrics to estimate the comprehensive data quality method of multi-source multi-mode sensory data. Finally, a data acquisition method is presented based on data quality, which selects a part of data sources for data transmission according to the given precision. This method aims at reducing the consumption of the sensory network on the premise of the data quality guarantee. An extensive experimental evaluation demonstrates the efficiency and effectiveness of the algorithm.
随着人工智能、大数据、物联网等新技术的快速发展,许多研究者对学习分析的研究进行了探索,试图通过分析学习过程中的学习行为数据来解决教学问题。在许多学习行为研究中,传感器网络通常由许多相互独立的数据源组成,这些数据源可以从多个维度对被测物体进行监测,从而获得多源多模态的感官数据。但仍存在误报、误报、环境干扰等问题。为此,我们提出了一种基于日期质量(DQ)的多源多模传感数据采集方法。我们首先从四个方面定义数据质量:准确性、完整性、一致性和即时性。然后,通过对这两个方面的建模,提出了多源多模感官数据综合质量评价的度量方法。最后,提出了一种基于数据质量的数据采集方法,根据给定的精度选择一部分数据源进行数据传输。该方法旨在在保证数据质量的前提下减少感知网络的消耗。大量的实验验证了该算法的效率和有效性。
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引用次数: 0
Improved Ant Colony Algorithm Based on Parameters Optimization for AGV Path Planning 基于参数优化的AGV路径规划改进蚁群算法
Zhou Yang, Haibin Liu, R. Xie
Path planning is a key technology in the research of Automatic Guided Vehicle (AGV). To solve the problem that the traditional Ant Colony Optimization (ACO) algorithm has poor convergence, low search efficiency, and easy to fall into the local optimality problems in AGV path planning, some improved methods are proposed in this paper. Through initial pheromones non-uniform and directed distribution to determine the search direction in the early stage, the search efficiency and convergence speed of the algorithm is improved. By adding the adaptive adjustment strategy of the iterations number, the computation amount and time complexity of the algorithm are greatly reduced. The parameters of ACO have an important influence on the convergence and the optimization effect, but there are no scientific bases to decide the values. To solve the above problem the improved ACO parameters are optimized by using the genetic algorithm (GA) which has good global search ability and easy fusion with other algorithms to find the parameters combination for the best performance of ACO. Simulation experiments in different environments show that the improved ACO has a better optimization effect and higher search efficiency compared with the traditional ACO.
路径规划是自动导引车研究中的一项关键技术。针对传统蚁群优化(Ant Colony Optimization, ACO)算法在AGV路径规划中收敛性差、搜索效率低、易陷入局部最优问题等问题,提出了一些改进方法。通过初始信息素的非均匀定向分布,在早期确定搜索方向,提高了算法的搜索效率和收敛速度。通过增加迭代次数的自适应调整策略,大大降低了算法的计算量和时间复杂度。蚁群算法的参数对算法的收敛性和优化效果有重要影响,但其取值尚无科学依据。为了解决上述问题,采用具有良好全局搜索能力和易于与其他算法融合的遗传算法对改进蚁群算法的参数进行优化,以找到蚁群算法性能最佳的参数组合。不同环境下的仿真实验表明,与传统蚁群算法相比,改进蚁群算法具有更好的优化效果和更高的搜索效率。
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引用次数: 0
Gaussian Image Denoising Method Based on the Dual Channel Deep Neural Network with the Skip Connection 基于跳跃连接双通道深度神经网络的高斯图像去噪方法
Kaili Feng, Tonghe Ding, Tianping Li, Jiayu Ou
In the era of rapid development of artificial intelligence technology, image denoising methods based on deep learning have achieved better and better results, and some deeper networks have also been proposed. However, with the increasing number of network layers, gradient explosion and over fitting problems also appear in the training process. In this paper, a new Gaussian image denoising method based on dual channel deep neural network with skip connection is proposed. The network is composed by the first layer network and the second layer network in parallel, so as to widen the width of the network. It not only improves the denoising effect, but also reduces the problems in the training process. The first layer uses dilated convolution to expand the receptive field of the network, and the second layer is composed of skip connection modules. The method is tested on the data set68 and achieves good results.
在人工智能技术快速发展的时代,基于深度学习的图像去噪方法取得了越来越好的效果,一些更深层次的网络也被提出。然而,随着网络层数的增加,在训练过程中也会出现梯度爆炸和过拟合问题。提出了一种基于双通道深度神经网络的跳跃连接高斯图像去噪方法。该网络由第一层网络和第二层网络并行组成,从而拓宽了网络的宽度。既提高了去噪效果,又减少了训练过程中出现的问题。第一层使用扩展卷积来扩展网络的接受域,第二层由跳跃连接模块组成。该方法在数据集68上进行了测试,取得了良好的效果。
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引用次数: 0
Research on a Fault Repair Method for Control Logic of Non-Source-Code Software 非源代码软件控制逻辑故障修复方法研究
Ping Hu, Xue-Xia Liu, Xue-Feng Gu, Hao Chen, Kai Liu, Chao Zhang
Aiming at the fault repair problem of a non-source-code software with QNX operating system,a repair method of discrete global control logic into collaborative sub-logic is proposed. The location of the fault repair was precisely locatedby using software reverse analysis, and the minimal repair scope was isolated. The result of test shown that the software fault repair is accurate and the repaired software runs stably and reliably.
针对QNX操作系统下非源代码软件的故障修复问题,提出了一种将离散全局控制逻辑修复为协同子逻辑的方法。利用软件逆向分析,精确定位故障修复的位置,并隔离出最小修复范围。测试结果表明,软件故障修复准确,修复后的软件运行稳定可靠。
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引用次数: 0
Deformation prediction of thin-walled parts based on BP neural network 基于BP神经网络的薄壁件变形预测
Fei Liu, Niansong Zhang, Aiming Wang, Yue Ding, Y. Cao, Liling Liu
In aviation, aerospace and military products, thin-walled parts are widely used for their excellent characteristics. Some key complex parts include thin-walled and special-shaped features, which require high precision. However, due to the low stiffness of thin-walled parts, it is easy to produce machining deformation due to cutting force during processing. Aimed at the difficulty of measuring parts milling deformation, this paper proposes a thin-walled parts processing deformation prediction method based on neural network, designed by the method of orthogonal test, the test program for different milling parameters under the condition of the milling test, test data as the training sample is established based on BP neural network and milling parameters of milling deformation forecast model. Finally, genetic algorithm is used to optimize the initial weight and threshold value of BP neural network to overcome the disadvantages of slow convergence rate and easy to fall into local minimum value .The performance of the neural network model is improved.
在航空、航天和军工产品中,薄壁件以其优异的特性得到了广泛的应用。一些关键的复杂零件具有薄壁和异形特征,对精度要求很高。但薄壁件由于刚度低,在加工过程中容易因切削力而产生加工变形。针对零件铣削变形测量困难的问题,本文提出了一种基于神经网络的薄壁零件加工变形预测方法,通过设计正交试验的方法,对不同铣削参数条件下的试验程序进行铣削试验,以试验数据为训练样本,建立了基于BP神经网络和铣削参数的铣削变形预测模型。最后,利用遗传算法对BP神经网络的初始权值和阈值进行优化,克服了BP神经网络收敛速度慢、容易陷入局部极小值的缺点,提高了神经网络模型的性能。
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引用次数: 1
Method with Data to Text Generation Based on Selecting Encoding and Fusing Semantic Loss 基于选择编码和融合语义丢失的数据到文本生成方法
Yuelin Chen, ZhuCheng Gao, XiaoDong Cai
A method with data to text generation based on selecting encoding and fusing semantic loss is proposed in this paper. By highlighting key content and reducing the redundancy of text description information, the quality of the generated text is significantly improved. First, a new selection network is designed, which uses the amount of information related to data records as the coding basis for content importance, and multiple rounds of dynamic iterations of the results to achieve accurate and comprehensive selection of important information. Secondly, in the decoding process using Long Short-Term Memory (LSTM), a hierarchical attention mechanism is designed to assign dynamic selection weights to different entities and their attributes in the hidden layer output to obtain the best generated text Recall rate. Finally, a method of calculating the semantic similarity loss between the generated text and the reference text is introduced. By calculating the cosine distance of the semantic vectors of the two and iteratively feedback to the training process to obtain the optimization of key features, while reducing the redundancy of description information and improving the model BLEU performance. The experimental results show that the test Precision rate, Recall rate and BLEU is up to 94.58%, 53.72% and 17.24, which are better than existing models.
提出了一种基于选择编码和融合语义损失的数据到文本生成方法。通过突出显示关键内容和减少文本描述信息的冗余,显著提高了生成文本的质量。首先,设计新的选择网络,以数据记录相关信息量作为内容重要性的编码依据,并对结果进行多轮动态迭代,实现重要信息的准确、全面选择。其次,在利用长短期记忆(LSTM)进行解码的过程中,设计了一种分层注意机制,对隐藏层输出中的不同实体及其属性动态分配选择权值,以获得最佳的生成文本召回率;最后,介绍了一种计算生成文本与参考文本之间语义相似度损失的方法。通过计算二者语义向量的余弦距离并迭代反馈到训练过程中,获得关键特征的优化,同时减少描述信息的冗余,提高模型BLEU性能。实验结果表明,该模型的测试准确率、召回率和BLEU分别达到94.58%、53.72%和17.24%,均优于现有模型。
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引用次数: 0
A novel orthogonal matching pursuit algorithm based on reduced-dimension dictionary for airborne MIMO radar 一种基于降维字典的机载MIMO雷达正交匹配跟踪算法
Qiuyue Yin, Jinwang Yi, Jun Tang, Qin Zhu
In traditional airborne multiple-input multiple-output (MIMO) radar, high correlation of dictionary atoms usually degrades the performance of orthogonal matching pursuit (OMP) algorithm in sparse recovery space-time adaptive processing (SR-STAP). An OMP algorithm based on reduced-dimension dictionary is developed to solve this problem. It divides the dictionary along the clutter ridge and vertical direction of ridge, and eliminates atoms with high correlation by the prior knowledge. The experimental results indicate that the proposed method fully covers the clutter ridge, thus, the performance of clutter spectrum and signal-to-interference-plus-noise-ratio (SINR) are improved under these limitations of high correlation.
传统机载多输入多输出(MIMO)雷达在稀疏恢复空时自适应处理(SR-STAP)中,字典原子的高相关性往往会降低正交匹配追踪(OMP)算法的性能。为了解决这一问题,提出了一种基于降维字典的OMP算法。它沿杂波脊和杂波脊垂直方向划分字典,并利用先验知识剔除相关性高的原子。实验结果表明,该方法完全覆盖了杂波脊,在高相关性的限制下提高了杂波谱性能和信噪比。
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引用次数: 0
期刊
2021 2nd International Symposium on Computer Engineering and Intelligent Communications (ISCEIC)
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