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A high‐accuracy and robust diagnostic tool for gearbox faults in wind turbines 风力涡轮机齿轮箱故障的高精度稳健诊断工具
Pub Date : 2024-07-01 DOI: 10.1049/tje2.12411
Shiue‐Der Lu, Yi‐Hsuan Jiang, Chia‐Chun Wu, Hong-Wei Sian
Faulty gears are a common cause of wind turbine failures. For this sake, this work was developed as a reliable diagnostic tool for wind turbines to improve wind power stability accordingly. A convolutional extension neural network (CENN) was proposed to identify vibration and audio signals captured from a gearbox. According to the status of the contained faulty gears, a gearbox was categorised as one of the three types: (i) broken, (ii) rusty and (iii) a combination of (i) and (ii). It was further assigned one of the three severity levels: mild, moderate and severe. Therefore, there were a total of nine combinations for identification. Captured raw vibration and audio signals were applied to a chaotic synchronisation detector by which 3D chaotic error scatter feature images were generated to train and test the CENN. The recognition rate provided by CENN and the majority rule reached 99.6%, and then slightly fell to 97.4% in a noise robustness test, and consequently CENN outperformed counterparts in terms of the recognition rate and the robustness against noise. Accordingly, multiple gearbox faults can be well diagnosed for the first time in the literature. Finally, this paper concludes with a simplified version of the original proposal.
齿轮故障是风力涡轮机故障的常见原因。因此,本研究开发了一种可靠的风力涡轮机诊断工具,以提高风力发电的稳定性。我们提出了一种卷积扩展神经网络 (CENN),用于识别从齿轮箱采集到的振动和音频信号。根据所含故障齿轮的状态,齿轮箱被分为三种类型:(i) 损坏、(ii) 生锈和 (iii) (i) 和 (ii) 的组合。齿轮箱的严重程度分为轻度、中度和重度三种。因此,共有九种识别组合。捕获的原始振动和音频信号应用于混沌同步检测器,通过该检测器生成三维混沌误差散射特征图像,用于训练和测试 CENN。CENN 和多数规则的识别率达到 99.6%,在噪声鲁棒性测试中略微下降到 97.4%,因此 CENN 在识别率和噪声鲁棒性方面优于同行。因此,在文献中首次可以很好地诊断多种齿轮箱故障。最后,本文以原始提案的简化版本作为结束语。
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引用次数: 0
A novel ensemble deep reinforcement learning model for short‐term load forecasting based on Q‐learning dynamic model selection 基于 Q-learning 动态模型选择的用于短期负荷预测的新型集合深度强化学习模型
Pub Date : 2024-07-01 DOI: 10.1049/tje2.12409
Xin He, Wenlu Zhao, Licheng Zhang, Qiushi Zhang, Xinyu Li
Short‐term load forecasting is critical for power system planning and operations, and ensemble forecasting methods for electricity loads have been shown to be effective in obtaining accurate forecasts. However, the weights in ensemble prediction models are usually preset based on the overall performance after training, which prevents the model from adapting in the face of different scenarios, limiting the improvement of prediction performance. In order to improve the accurateness and validity of the ensemble prediction method further, this paper proposes an ensemble deep reinforcement learning approach using Q‐learning dynamic weight assignment to consider local behaviours caused by changes in the external environment. Firstly, the variational mode decomposition is used to reduce the non‐stationarity of the original data by decomposing the load sequence. Then, the recurrent neural network (RNN), long short‐term memory (LSTM), and gated recurrent unit (GRU) are selected as the basic power load predictors. Finally, the optimal weights are ensembled for the three sub‐predictors by the optimal weights generated using the Q‐learning algorithm, and the final results are obtained by combining their respective predictions. The results show that the forecasting capability of the proposed method outperforms all sub‐models and several baseline ensemble forecasting methods.
短期负荷预测对电力系统规划和运行至关重要,而电力负荷的集合预测方法已被证明能有效获得准确预测。然而,集合预测模型中的权重通常是根据训练后的整体性能预设的,这使得模型在面对不同情况时无法适应,限制了预测性能的提高。为了进一步提高集合预测方法的准确性和有效性,本文提出了一种利用Q-learning动态权重分配的集合深度强化学习方法,以考虑外部环境变化引起的局部行为。首先,利用变模分解法对负载序列进行分解,以降低原始数据的非平稳性。然后,选择递归神经网络(RNN)、长短期记忆(LSTM)和门控递归单元(GRU)作为基本的电力负荷预测器。最后,利用 Q-learning 算法生成的最优权重对三个子预测器进行组合,并通过组合各自的预测结果得出最终结果。结果表明,拟议方法的预测能力优于所有子模型和几种基准集合预测方法。
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引用次数: 0
Optimal scheduling of the stand‐alone micro grids considering the reliability cost 考虑可靠性成本的独立微电网优化调度
Pub Date : 2024-07-01 DOI: 10.1049/tje2.12387
Ayoub Nargeszar, A. Ghaedi, M. Nafar, M. Simab
In order to prevent wastage of generated power of renewable resources, the energy storage systems can be utilized in the stand‐alone micro grids to store the excess produced power of the renewable generation units. When the generated power of the renewable resources is less than the required load, the energy storage systems can help to compensate all or part of the power shortage. In the current study, a stand‐alone micro grid including wind and tidal turbines, PV systems, batteries and fuel‐based generation units is considered to supply the required load of the micro grid. The generated power of each dispatch‐able generation units is determined in such a way as to minimize the operating cost. In the operating cost of the micro grid, the operating cost of the fuel‐based generation units and the reliability cost associated to the penalty of the curtailed loads are considered. To calculate the reliability cost of the micro grid, a comprehensive reliability evaluation of the micro grid considering the resource‐dependent failure rates for all composed components is performed. To study the effectiveness of the proposed reliability‐based scheduling approach, the numerical results associated to a stand‐alone micro grid containing wind, tidal, PV and fuel‐based generation units connected to the batteries are given.
为了避免浪费可再生资源产生的电能,可在独立微电网中利用储能系统来储存可再生能源发电装置产生的多余电能。当可再生资源的发电量小于所需负荷时,储能系统可帮助弥补全部或部分电力缺口。在当前的研究中,考虑了一个包括风力和潮汐涡轮机、光伏系统、电池和燃料发电装置的独立微电网,以供应微电网所需的负荷。在确定每个可调度发电单元的发电量时,要尽量降低运行成本。在微电网的运营成本中,要考虑燃料发电设备的运营成本和与削减负荷惩罚相关的可靠性成本。为了计算微电网的可靠性成本,我们对微电网进行了全面的可靠性评估,考虑到了所有组成元件与资源相关的故障率。为了研究建议的基于可靠性的调度方法的有效性,给出了与一个独立微电网相关的数值结果,该微电网包含与电池相连的风力、潮汐、光伏和燃料发电装置。
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引用次数: 0
Power cable monitoring method based on UHF‐RFID and deep learning in edge computing environment 边缘计算环境下基于超高频射频识别(UHF-RFID)和深度学习的电力电缆监测方法
Pub Date : 2024-07-01 DOI: 10.1049/tje2.12407
Xiongfei Gu, Jian Shang, Changlu Shen
This research addresses the challenge faced by most existing prediction methods in handling nonlinear data of cables. Furthermore, it proposes a novel power cable monitoring method utilizing UHF‐RFID and deep learning within an edge computing environment, specifically targeting the currently suboptimal wireless monitoring of cables. First, based on edge computing, a power cable monitoring system is designed to migrate the analysis of massive data to the edge of the network to improve the monitoring efficiency. Then, the temperature sensing chip and RFID chip were integrated to design a UHF‐RFID temperature tag, which was fixed at the cable temperature measurement point to achieve passive wireless monitoring of the cable. Finally, the parameters of the GRNN model are optimized using the beetle antennae search algorithm, and the EEMD decomposed data is input into the BAS‐GRNN model for learning to output temperature prediction results. Based on the establishment of an experimental platform, the method was demonstrated, and results showed that the maximum error between the UHF‐RFID temperature tag temperature measurement results and the thermocouple was within 0.3°C, and the average relative error of the proposed method was only 0.01, which can meet the accuracy requirements of actual monitoring of power cables.
本研究解决了大多数现有预测方法在处理电缆非线性数据时所面临的挑战。此外,它还提出了一种在边缘计算环境下利用超高频射频识别(UHF-RFID)和深度学习的新型电力电缆监测方法,专门针对目前不理想的电缆无线监测问题。首先,基于边缘计算,设计了一种电力电缆监测系统,将海量数据的分析迁移到网络边缘,以提高监测效率。然后,将温度传感芯片和 RFID 芯片集成,设计出 UHF-RFID 温度标签,将其固定在电缆温度测量点,实现对电缆的无源无线监测。最后,利用甲虫天线搜索算法优化 GRNN 模型参数,并将 EEMD 分解数据输入 BAS-GRNN 模型进行学习,输出温度预测结果。在建立实验平台的基础上,对该方法进行了演示,结果表明 UHF-RFID 温度标签测温结果与热电偶测温结果的最大误差在 0.3°C 以内,所提方法的平均相对误差仅为 0.01,可以满足电力电缆实际监测的精度要求。
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引用次数: 0
Ferrofluid‐based electrical machines: Conceptualization and experimental evaluation 基于铁流体的电机:概念化和实验评估
Pub Date : 2024-07-01 DOI: 10.1049/tje2.12408
Ahmad Darabi, Fazel Pourmirzaei Deylami, Morteza Sheikhian, Mohammad Ali Taheripour
This article intends to propose a new concept of electric machines that works based on a category of magnetic fluids called “ferrofluids”. For this purpose, a disc‐shaped rotor filled with ferrofluid material is employed instead of a common rotor of an axial‐flux machine, and the conceptual design of the new machine named here “axial‐flux ferrofluid electric machine (FFEM)” is presented. The operation principle of the FFEM is described and a dynamic‐transient model built on the d–q axes equivalent circuits is presented. Simulations are carried out by applying the given model in MATLAB and the results are investigated in different operating conditions. In order to identify the basic parameters and validate the simulation results, a prototype of the FFEM has been designed and manufactured, and some preliminary functional tests have been performed on the prototype. All simulation and experimental results indicate some distinguished excellent performances of the new machine. In the end, it can be stated briefly with some confidence that ferrofluid electric machines can have a high potential for future research and applications in various industries due to the simplicity of the structure, self‐starting capability, ability to work at a wide range of speeds and a flat torque profile.
本文旨在提出一种基于 "铁流体 "磁性流体的新电机概念。为此,本文采用了一个充满铁流体材料的圆盘形转子来代替轴向磁流体电机的普通转子,并介绍了这种新电机的概念设计,本文将其命名为 "轴向磁流体铁流体电机(FFEM)"。介绍了 FFEM 的工作原理,并提出了基于 d-q 轴等效电路的动态瞬态模型。通过在 MATLAB 中应用给定的模型进行了仿真,并对不同运行条件下的结果进行了研究。为了确定基本参数并验证仿真结果,设计并制造了 FFEM 原型,并对原型进行了一些初步功能测试。所有的模拟和实验结果都表明,这台新机器具有卓越的性能。最后,我们可以有把握地简要指出,由于结构简单、自启动能力强、工作速度范围广、扭矩曲线平坦,铁氟体电机在未来各行业的研究和应用中具有很大的潜力。
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引用次数: 0
A domain adaptation‐based convolutional neural network incorporating data augmentation for power system dynamic security assessment 用于电力系统动态安全评估的基于域适应的卷积神经网络,包含数据增强功能
Pub Date : 2024-07-01 DOI: 10.1049/tje2.12400
Sasan Azad, M. Ameli
Recently, deep learning (DL) based dynamic security assessment (DSA) methods have been very successful. However, although a DSA model can be trained well for a specific topology, it often does not perform well for other topologies. Since the topology in real‐world power systems is frequently changing, the performance reduction of DL‐based DSA methods is very serious, which is a challenging and urgent problem. This paper proposes a novel DSA method based on a convolutional neural network (CNN) to solve this problem. In the proposed method, a strong yet simple domain adaptation approach named adaptive batch normalization (AdaBN) is used, which significantly enhances the extensibility and generalizability of the DSA model when the topology changes and eliminates the need to train a large number of models. This approach achieves a deep adaptation effect by modulating the statistics from the source domain to the target domain in all batch normalization layers across the model. Unlike other domain adaptation methods, this method is parameter‐free, requires no additional components, and has advanced performance despite its simplicity. In addition, this paper introduces TGAN‐based data augmentation to deal with the difficulty of costly data collection and labelling. This data augmentation makes the proposed model applicable to small databases. The test results of the proposed method on IEEE 39‐bus and IEEE 118‐bus systems show that this method can evaluate system dynamic security during topology changes and in the face of data noise with high accuracy.
最近,基于深度学习(DL)的动态安全评估(DSA)方法非常成功。然而,尽管可以针对特定拓扑结构很好地训练 DSA 模型,但它在其他拓扑结构中往往表现不佳。由于实际电力系统中的拓扑结构经常变化,基于 DL 的 DSA 方法的性能下降非常严重,这是一个具有挑战性的紧迫问题。本文提出了一种基于卷积神经网络(CNN)的新型 DSA 方法来解决这一问题。在所提出的方法中,使用了一种名为自适应批量归一化(AdaBN)的强大而简单的领域适应方法,当拓扑结构发生变化时,它能显著增强 DSA 模型的可扩展性和通用性,并且无需训练大量模型。这种方法通过在整个模型的所有批量归一化层中调节从源域到目标域的统计量来实现深度适应效果。与其他域自适应方法不同的是,这种方法不需要参数,不需要额外的组件,虽然简单,但性能先进。此外,本文还引入了基于 TGAN 的数据增强技术,以解决昂贵的数据收集和标记困难。这种数据扩增使所提出的模型适用于小型数据库。所提方法在 IEEE 39-bus 和 IEEE 118-bus 系统上的测试结果表明,该方法能在拓扑变化期间和面对数据噪声时准确评估系统的动态安全性。
{"title":"A domain adaptation‐based convolutional neural network incorporating data augmentation for power system dynamic security assessment","authors":"Sasan Azad, M. Ameli","doi":"10.1049/tje2.12400","DOIUrl":"https://doi.org/10.1049/tje2.12400","url":null,"abstract":"Recently, deep learning (DL) based dynamic security assessment (DSA) methods have been very successful. However, although a DSA model can be trained well for a specific topology, it often does not perform well for other topologies. Since the topology in real‐world power systems is frequently changing, the performance reduction of DL‐based DSA methods is very serious, which is a challenging and urgent problem. This paper proposes a novel DSA method based on a convolutional neural network (CNN) to solve this problem. In the proposed method, a strong yet simple domain adaptation approach named adaptive batch normalization (AdaBN) is used, which significantly enhances the extensibility and generalizability of the DSA model when the topology changes and eliminates the need to train a large number of models. This approach achieves a deep adaptation effect by modulating the statistics from the source domain to the target domain in all batch normalization layers across the model. Unlike other domain adaptation methods, this method is parameter‐free, requires no additional components, and has advanced performance despite its simplicity. In addition, this paper introduces TGAN‐based data augmentation to deal with the difficulty of costly data collection and labelling. This data augmentation makes the proposed model applicable to small databases. The test results of the proposed method on IEEE 39‐bus and IEEE 118‐bus systems show that this method can evaluate system dynamic security during topology changes and in the face of data noise with high accuracy.","PeriodicalId":510109,"journal":{"name":"The Journal of Engineering","volume":"45 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141697975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Power frequency magnetic field interference suppression method for online frequency response analysis of power transformers 用于电力变压器在线频率响应分析的工频磁场干扰抑制方法
Pub Date : 2024-07-01 DOI: 10.1049/tje2.12417
Yangchun Cheng, Xiangdong Liu, Yufei Sha, Wenzhi Chang, Jiangang Bi
Frequency response analysis is widely used for the offline diagnosis of winding deformations in power transformers. To apply this approach to a working transformer, the magnitude of the response current needs to be measured by using Rogowski coil sensors across a load current. The saturation of the power frequency magnetic field in these current sensors must be prevented to ensure accurate measurement of such small response currents. Here, a method is presented to suppress the power frequency magnetic field using a sensing system including a special connection of three‐phase current sensors based on the sum of the three‐phase power frequency load currents of the transformer being close to zero. Each sensor comprises two secondary coils: a measuring coil and an anti‐saturation coil. The anti‐saturation coils are connected in parallel with one another through small inductors to eliminate the power frequency magnetic field in the cores of the sensors. Theoretical analysis is used to derive a solution for this system. The experimental results verify the proposed method as enabling the sensors to function with a transformer carrying a load current of 2333 A.
频率响应分析被广泛用于电力变压器绕组变形的离线诊断。要将这种方法应用于工作中的变压器,需要使用罗戈夫斯基线圈传感器跨负载电流测量响应电流的大小。必须防止这些电流传感器中的工频磁场饱和,以确保准确测量如此小的响应电流。本文介绍了一种抑制工频磁场的方法,该方法使用的传感系统包括一个特殊连接的三相电流传感器,其基础是变压器的三相工频负载电流之和接近于零。每个传感器包括两个次级线圈:一个测量线圈和一个抗饱和线圈。抗饱和线圈通过小型电感器相互并联,以消除传感器铁芯中的工频磁场。理论分析用于推导该系统的解决方案。实验结果验证了所提出的方法能够使传感器在负载电流为 2333 A 的变压器上正常工作。
{"title":"Power frequency magnetic field interference suppression method for online frequency response analysis of power transformers","authors":"Yangchun Cheng, Xiangdong Liu, Yufei Sha, Wenzhi Chang, Jiangang Bi","doi":"10.1049/tje2.12417","DOIUrl":"https://doi.org/10.1049/tje2.12417","url":null,"abstract":"Frequency response analysis is widely used for the offline diagnosis of winding deformations in power transformers. To apply this approach to a working transformer, the magnitude of the response current needs to be measured by using Rogowski coil sensors across a load current. The saturation of the power frequency magnetic field in these current sensors must be prevented to ensure accurate measurement of such small response currents. Here, a method is presented to suppress the power frequency magnetic field using a sensing system including a special connection of three‐phase current sensors based on the sum of the three‐phase power frequency load currents of the transformer being close to zero. Each sensor comprises two secondary coils: a measuring coil and an anti‐saturation coil. The anti‐saturation coils are connected in parallel with one another through small inductors to eliminate the power frequency magnetic field in the cores of the sensors. Theoretical analysis is used to derive a solution for this system. The experimental results verify the proposed method as enabling the sensors to function with a transformer carrying a load current of 2333 A.","PeriodicalId":510109,"journal":{"name":"The Journal of Engineering","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141850516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transient frequency response test and measurement error prediction of DCTV based on adaptive inertial weight improved ACO 基于自适应惯性权重改进 ACO 的 DCTV 瞬态频率响应测试和测量误差预测
Pub Date : 2024-07-01 DOI: 10.1049/tje2.12399
Yutao Yang, Shaolei Zhai, Hansong Tang, Genyue Duan, Liwu Deng
A temporary frequency response test and measurement error prediction method of direct current voltage transformer (DCTV) based on artificial intelligence (AI) is proposed. Firstly, the frequency characteristic of direct current (DC) side voltage of DCTV is analyzed. On this basis, a DCTV transient Frequency Response testing method based on transient alternating current (AC) & DC superposition was developed. Then, the method of voltage sudden change and phase correction is used to achieve transient process DCTV response time testing. Finally, the ant colony optimization (ACO) algorithm was improved by combining an adaptive inertia weight improvement strategy, achieving accurate prediction of the Measurement Error of DCTV. The proposed AI based DCTV transient Frequency Response testing and Measurement Error prediction method were compared and analyzed with the other three methods through simulation experiments. Compared to the other three comparison methods, the maximum transformation error in the evaluation indicators of mean squared error (MSE), root mean squared error (RMSE), and mean absolute error (MAE) decreased by 0.006, 0.0119, and 0.0085, respectively, while the maximum phase error decreased by 0.2794, 0.3004, and 0.2823, respectively.
提出了一种基于人工智能(AI)的直流电压互感器(DCTV)临时频率响应测试和测量误差预测方法。首先,分析了直流电压互感器直流侧电压的频率特性。在此基础上,开发了基于瞬态交流(AC)和直流(DC)叠加的 DCTV 瞬态频率响应测试方法。然后,利用电压突变和相位校正的方法来实现瞬态过程 DCTV 响应时间测试。最后,结合自适应惯性权重改进策略,改进了蚁群优化(ACO)算法,实现了对 DCTV 测量误差的精确预测。通过仿真实验,将所提出的基于人工智能的 DCTV 瞬态频率响应测试和测量误差预测方法与其他三种方法进行了比较和分析。与其他三种比较方法相比,均方误差(MSE)、均方根误差(RMSE)和平均绝对误差(MAE)等评价指标中的最大变换误差分别降低了0.006、0.0119和0.0085,最大相位误差分别降低了0.2794、0.3004和0.2823。
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引用次数: 0
Computer vision for eye diseases detection using pre‐trained deep learning techniques and raspberry Pi 利用预训练深度学习技术和树莓派(Raspberry Pi)进行眼疾检测的计算机视觉技术
Pub Date : 2024-07-01 DOI: 10.1049/tje2.12410
Ali Al-Naji, G. Khalid, Mustafa F. Mahmood, J. Chahl
Early diagnosis of eye diseases is very important to prevent visual impairment and guide appropriate treatment methods. This paper presents a unique approach that can detect numerous eye diseases automatically. Initially, this approach used the pre‐trained ImageNet models that provides various pre‐trained models for training the acquired data. The existing data sets are composed of 645 data images acquired clinically, represented by two groups of subjects as healthy and others holding the proposed eye defect like cataracts, foreign bodies, glaucoma, subconjunctival haemorrhage, and viral conjunctivitis. Followed by comparisons of the pre‐trained model's coefficients and prediction performance. Later, the first‐class execution model is integrated within the Raspberry Pi staging and the real‐time digital camera detection. The evaluation process used the confusion matrix, model accuracy, precision factor, recall coefficient, F1 score, and the Matthews Correlation Coefficient (MCC). Resulting in the performance of these pre‐trained ImageNet models used in this study represented by 93% (InceptionResNetV2), 90% (MobileNet), 86% (Residual Network ResNet50), 85% (InceptionV3), 78% (Visual Geometry Group VGG19), and 72% (Neural Architecture Search Network NASNetMobile). The results show that the InceptionResNetV2 achieved the highest performance. This proposed approach shows its efficiency and strength by early detection of the subject's unhealthy eyes through real‐time monitoring in the field of ophthalmology.
眼疾的早期诊断对于预防视力损伤和指导适当的治疗方法非常重要。本文提出了一种可自动检测多种眼疾的独特方法。最初,这种方法使用预训练的 ImageNet 模型,该模型提供各种预训练模型,用于训练获取的数据。现有的数据集由 645 张临床获取的数据图像组成,分为两组,一组为健康受试者,另一组为患有白内障、异物、青光眼、结膜下出血和病毒性结膜炎等眼部缺陷的受试者。然后比较预训练模型的系数和预测性能。随后,将一流的执行模型集成到树莓派分期和实时数码相机检测中。评估过程使用了混淆矩阵、模型准确率、精确系数、召回系数、F1 分数和马修斯相关系数(MCC)。结果显示,本研究中使用的这些预训练 ImageNet 模型的性能分别为 93%(InceptionResNetV2)、90%(MobileNet)、86%(残差网络 ResNet50)、85%(InceptionV3)、78%(视觉几何组 VGG19)和 72%(神经架构搜索网络 NASNetMobile)。结果表明,InceptionResNetV2 的性能最高。在眼科领域,通过实时监测早期发现受试者不健康的眼睛,显示了这一建议方法的效率和优势。
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引用次数: 0
Anti‐leakage transmission method of high privacy information in electric power communication network based on digital watermarking technology 基于数字水印技术的电力通信网络高隐私信息防泄漏传输方法
Pub Date : 2024-07-01 DOI: 10.1049/tje2.12403
Hongwen Guo, Xin Liu, Zhuoni Zheng, Zhihao Liu, Xinyu Mei
A method of transmission of highly confidential information in power communication network based on digital watermarking technology is proposed in order to reduce the leakage risk of power information and achieve the purpose of safe transmission of private information. This method establishes the data topology model of power communication network and connects the data receiving and sending terminals. Digital watermarking technology is used to embed digital watermarking in the information to be transmitted, encrypt the private information, and optimize the DES encryption algorithm to encrypt the information twice, so as to realize the safe transmission of information. The experimental results show that the digital watermark embedding rate, DES encryption rate, DES decryption rate and watermark extraction rate of the proposed method are all above 90 Mbps, and the file transfer time of 3965Byte is less than 5s, leakage risk rate and packet loss rate are 0.0001% and 0.006%, respectively, which effectively protects the security of high privacy information in the power communication network and prevents information leakage.
为了降低电力信息的泄露风险,达到保密信息安全传输的目的,提出了一种基于数字水印技术的电力通信网络高保密信息传输方法。该方法建立了电力通信网的数据拓扑模型,连接了数据接收和发送终端。采用数字水印技术在待传输信息中嵌入数字水印,对隐私信息进行加密,并优化DES加密算法对信息进行二次加密,从而实现信息的安全传输。实验结果表明,所提方法的数字水印嵌入率、DES加密率、DES解密率和水印提取率均在90 Mbps以上,3965Byte的文件传输时间小于5s,泄露风险率和丢包率分别为0.0001%和0.006%,有效保护了电力通信网络中高隐私信息的安全,防止了信息泄露。
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引用次数: 0
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The Journal of Engineering
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