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Reliable Data Collection Model and Transmission Framework in Large-Scale Wireless Medical Sensor Networks

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Computer Modeling in Engineering & Sciences 2024年第7期140卷 1077-1102页

作者： Haosong Gou gaoyi zhang RenêRipardo Calixto Senthil Kumar Jagatheesaperumal Victor Hugo C.de Albuquerque China Mobile Group Sichuan Co. Ltd.Chengdu640041China Department of Teleinformatics Engineering Federal University of CearáFortaleza60455-970Brazil Department of Electronics&Communication Engineering Mepco Schlenk Engineering CollegeSivakasi626005India

Large-scale wireless sensor networks(WSNs)play a critical role in monitoring dangerous scenarios and responding to medical ***,the inherent instability and error-prone nature of wireless links present significant challenges,necessitating efficient data collection and reliable transmission *** paper addresses the limitations of existing data transmission and recovery protocols by proposing a systematic end-to-end design tailored for medical event-driven cluster-based large-scale *** primary goal is to enhance the reliability of data collection and transmission services,ensuring a comprehensive and practical *** approach focuses on refining the hop-count-based routing scheme to achieve fairness in forwarding ***,it emphasizes reliable data collection within clusters and establishes robust data transmission over multiple *** systematic improvements are designed to optimize the overall performance of the WSN in real-world *** results of the proposed protocol validate its exceptional performance compared to other prominent data transmission *** evaluation spans varying sensor densities,wireless channel conditions,and packet transmission rates,showcasing the protocol’s superiority in ensuring reliable and efficient data *** systematic end-to-end design successfully addresses the challenges posed by the instability of wireless links in *** prioritizing fairness,reliability,and efficiency,the proposed protocol demonstrates its efficacy in enhancing data collection and transmission services,thereby offering a valuable contribution to the field of medical event-drivenWSNs.

关键词： Wireless sensor networks reliable data transmission medical emergencies cluster data collection routing scheme

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光网络哑资源深度学习智能管理系统

电讯技术 2022年第10期62卷 1433-1437页

作者：张高毅张军刘威中国移动通信集团四川有限公司博士后科研工作站成都610041 广东海洋大学数学与计算机学院广东湛江524003 华信咨询设计研究院有限公司杭州310052

现阶段光网络哑资源的管理多采用人工方式进行监控管理,而引入电子标签的智能光分配网络(Optical Distribution Network,ODN)因成本高、改造实施困难导致运营商无法有效提高ODN网络质量。通过引入二维码标签及标签分别对分光器及尾纤进... 详细信息

现阶段光网络哑资源的管理多采用人工方式进行监控管理,而引入电子标签的智能光分配网络(Optical Distribution Network,ODN)因成本高、改造实施困难导致运营商无法有效提高ODN网络质量。通过引入二维码标签及标签分别对分光器及尾纤进行标识,利用深度学习技术,采用Faster-RCNN网络对哑资源中尾纤、尾纤标签、分光器、二维码等信息进行统一识别管理,mAP(Mean Average Precision)达82.96%,满足实际需求,实现了哑资源智能管理,降低了管理与维护成本。

关键词：光分配网络(ODN) 哑资源智能管理二维码标签图像识别深度学习

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生成式人工智能(AIGC)应用进展浅析

移动通信 2023年第12期47卷 71-78页

作者：姜莎赵明峰张高毅中国移动通信集团四川有限公司四川成都610000 中国移动通信集团设计院有限公司四川分公司四川成都610045

以ChatGPT为代表的AIGC引发生成式AI热潮,将AI由1.0时代迈入到2.0时代,加速其AIGC技术产品和应用的发展,具有广阔的应用前景。从ChatGPT为代表的AIGC应用发展现状出发,详细论述国内外AIGC应用的发展现状,并进一步进行归类总结,提出了AIG... 详细信息

以ChatGPT为代表的AIGC引发生成式AI热潮,将AI由1.0时代迈入到2.0时代,加速其AIGC技术产品和应用的发展,具有广阔的应用前景。从ChatGPT为代表的AIGC应用发展现状出发,详细论述国内外AIGC应用的发展现状,并进一步进行归类总结,提出了AIGC的技术架构体系,最后给出了AIGC面临的机遇和挑战。

关键词： ChatGPT AIGC 大模型

维普期刊数据库博看期刊

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基于数字孪生的铝电解槽三维可视化监控系统

计算机与现代化 2024年第5期 104-109,114页

作者：张高义徐杨曹斌李毅飞贵州大学大数据与信息工程学院贵州贵阳550025 贵阳铝镁设计研究院有限公司贵州贵阳550009 中铝智能科技发展有限公司浙江杭州310000

传统的铝电解槽管理存在着管理方式单一、透明度低和参数数据呈现形式弱等问题。为了解决这些问题,本文引入数字孪生技术,将其应用到铝电解槽中,基于数字孪生理论模型及框架进行改进,提出数字孪生铝电解槽的三维可视化监控系统六维模型... 详细信息

传统的铝电解槽管理存在着管理方式单一、透明度低和参数数据呈现形式弱等问题。为了解决这些问题,本文引入数字孪生技术,将其应用到铝电解槽中,基于数字孪生理论模型及框架进行改进,提出数字孪生铝电解槽的三维可视化监控系统六维模型。基于此模型构建电解槽虚拟模型、场景优化、数据采集及数据映射,通过Java后台提供数据接口,使用***三维技术结合JavaScript语言对模型以及数据进行渲染,最终设计实现铝电解槽的三维可视化监控系统。该系统为现场人员提供更加直观的展示效果,使其能更好地了解铝电解槽运行状况,为铝行业智能化发展提供有效思路。

关键词：铝电解槽数字孪生三维可视化监控系统铝行业

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自动驾驶车队出口道左转交叉口轨迹最优控制

智能计算机与应用 2022年第5期12卷 145-149页

作者：吴健章张范磊刘松泽张高毅陈清蓉王泽赵靖上海理工大学管理学院上海200093

出口道左转交叉口通过改变部分出口道的车道功能,可为左转交通提供额外的通行能力。本文基于传统跟驰模型和换道模型,建立以通行效率和车队运行稳定性为目标的最优控制模型,在Matlab环境下使用CasADi求解器中的BONMIN算法对模型进行求... 详细信息

出口道左转交叉口通过改变部分出口道的车道功能,可为左转交通提供额外的通行能力。本文基于传统跟驰模型和换道模型,建立以通行效率和车队运行稳定性为目标的最优控制模型,在Matlab环境下使用CasADi求解器中的BONMIN算法对模型进行求解。将常规交叉口放行策略与本文所提出的最优放行策略进行对比分析。结果表明,模型计算给出的3种通行策略不仅能合理使用对向出口车道,同时车辆通过交叉口的次序得以提前,从而使得交叉口的通行效率有一定程度的提升。

关键词：出口道左转交叉口车队控制车道功能车辆轨迹

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Sulfonated Graphene Synthesized via a Green Route and Its Capacitive Properties

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Chinese Journal of Chemistry 2016年第1期34卷 98-106页

作者： Wen Zhou gaoyi Han Yaoming Xiao Yunzhen Chang Miaoyu Li Yuyu zhang Institute of Molecular Science Key Laboratory of Shanxi Province for Energy Conversion and Storage Materials Shanxi University Taiyuan Shanxi 030006 China

An environmentally friendly approach is presented to synthesize sulfonated reduced graphene oxide （S-rGO） by using L-ascorbic acid （L-AA） and aryl diazonium salt of sulfanilic acid. The preparation conditions have been optimized in order to obtain isolated and conductive S-rGO, and the products have been characterized by Ultraviolet-Visible spectroscopy, Fourier transformed infrared spectroscopy, Raman, X-ray photoelectron spectroscopy and X-ray powder diffraction and electrochemical methods. The results show that the S-rGO sheets possess excellent water-solubility and high electrical conductivity, which implies that the oxygen-containing functional groups have been removed and conjugated sp2 network has been restored. What＇s more, the electrochemical measurements reveal that the capacitive performance of the S-rGO has been improved compared with the graphene oxide （GO） and the reduced graphene oxide （rGO, reduced by L-AA）. The optimum S-rGO exhibits a specific capacitance of 205 F·g^-1 and good cycling stability （3.9% decreasing after 10000 cycles）, which are better than those for graphene oxide （109 F·g^-1 and decreasing 6.6% after 10000 cycles） and rGO （139 F·g^-1 and decreasing ll.3% after 10000 cycling）. This approach proves a new route to improve the capacitive properties of rGO.

关键词： sulfonated graphene L-ascorbic acid soluble graphene capacitive property

An Acetylcholinesterase Biosensor Based on Graphene/ Polyaniline Composite Film for Detection of Pesticides

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Chinese Journal of Chemistry 2016年第1期34卷 82-88页

作者： Yanping Li Yuyu zhang gaoyi Han Yaoming Xiao Miaoyu Li Wen Zhou Institute of Molecular Science Key Laboratory of Shanxi Province for Energy Conversion and Storage Materials Taiyuan Shanxi 030006 China

This work reports a sensitive amperometric biosensor for organophosphate pesticides （OPs） fabricated through modifying glassy carbon electrode with acetylcholinesterase （ACHE） immobilized on graphene/polyaniline （G/PANI） composite film. The obtained G/PANI composite films show large specific area, high conductivity, good biocompatibility, and fast redox properties and have perfect layered and encapsulated structures. The as-prepared biosensor shows high affinity to acetylthiocholine （ATC1） with a Micbaelis-Menten constant value of 0.20 mmol/L. Furthermore, based on the inhibition of the enzymatic activity （immobilized ACHE） caused by the model compound of carbaryl （one kind of pesticides）, it is found that the inhibition activity of carbaryl is proportional to its concen- tration ranging from 38 to 194 ngomL-1. The developed biosensor shows a detection limit of 20 ngomL-1 （S/N~ 3） for OPs detection and exhibits good performance such as good reproducibility and acceptable stability, which makes it possible to provide a new and promising tool for the analysis of enzyme inhibitors.

关键词： acetylcholinesterase organophosphorus pesticides graphene/polyaniline biosensor

Degradation characteristics of insulation near aluminium foil edges inside dry-type bushing cores under electrothermal compound stress

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High Voltage 2022年第6期7卷 1153-1164页

作者： Ming Chen Xuandong Liu Yuhang Shao gaoyi Shang Qiaogen zhang Hao Tang Libao Liu State Key Laboratory of Electrical Insulation and Power Equipment School of Electrical EngineeringXi'an Jiaotong UniversityXi'anChina China Electric Power Research Institute BeijingChina Nanjing Electric High Voltage Bushing Co. NanjingChina

Insulation breakdown of dry-type valve-side bushing cores under electrothermal compound stress has become a key factor limiting the safe and stable operation of the converter *** on slices of the real bushing core,it is observed for the first time that fold,peeling off,and fracture defects exist near the aluminium(Al)foil edge,accompanied by many metal spikes with a curvature radius<4μ*** with a capacitor screen thickness of∼2 mm,an electrical tree model is designed to simulate insulation defects near aluminium foil edges inside dry-type bushing cores,whose insulation degradation characteristics under electrothermal compound stress are investigated *** results show that high temperature significantly increases the dielectric loss heat energy density and Joule heat energy density,accelerating the insulation degradation near Al foil *** parallel crepe paper interface significantly accelerates the growth of electrical trees under AC-superimposed positive DC voltage,while this effect is not significant under AC *** the crepe paper consists of wooden fibres of 10μm diameter,the electrical trees tend to grow along interfaces between fibres and epoxy resin to form“feathery”electrical trees in epoxy resinimpregnated paper samples.

关键词： stress insulation compound

Comparative Analysis of Pre-process Pipelines For Automatic Retinal Vessel Segmentation

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Comparative Analysis of Pre-process Pipelines For Automatic ...