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Open-source dataset of vehicle state for an electric vehicle on a low-adhesion road

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Science china(Information Sciences) 2022年第3期65卷 258-259页

作者： Shuo CAI Haitao DING Yunfeng HU Lin ZHANG qin LI Hong chen State Key Laboratory of Automotive Simulation and control Jilin University department of control Science and engineering Jilin University School of Automotive Studies Tongji University Collaborative Innovation Center of Electric Vehicles in Beijing Beijing Institute of Technology GAC r&D Center

This study demonstrates and opens for academic research six sets of electric vehicle data collected during experiments on a low-adhesion road. The 11-dimensional data were collected from a small, single-motor SUV with front-wheel *** data collected for vehicles on low-adhesion roads are crucial for research on system dynamics modeling,stability control system design, and vehicle state estimation. Indeed, all vehicle control systems must be validated on low-adhesion roads, including vehicle models,

关键词： vehicle experimental data dynamics modeling state estimation control system design low adhesion road

Consensus-Based Distributed control with Communication Time Delays for Virtual Synchronous Generators in Isolate Microgrid

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Energy and power engineering 2017年第4期9卷 102-111页

作者： Laijun chen Yuyang Wang Tianwen Zheng zhenquan Sun State Key Laboratory of power system Department of Electrical Engineering Tsinghua University Beijing China Key Laboratory of photovoltaic power Generation and Grid-connected Technology (qinghai Electrical power research In-stitute Qinghai Electric Power Corporation Xining China) Shaanxi regional Electric power Design and research Institute Xi’an China

A consensus-based distributed control method of coordinated VSGs with communication time delays in isolate microgrid is proposed. When time delays are considered in communication, there are some effects on frequency restoration and active power output allocation. In the control structure, only local information exchange is needed, while the final frequency can be controlled to the nominal value and the VSGs can automatically share loads according to their rated values. An AC microgrid with three VSGs and some loads is implemented. The proposed control strategy is verified by MATLAB/ Simulink simulation results.

关键词： Virtual Synchronous Generator Time Delays Distributed control Consensus Algorithm

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基于时间地理学的带时间窗车辆路径问题建模

指挥与控制学报 2024年第2期10卷 238-243页

作者：李奇秦大国李稀媛李瑞航天工程大学航天指挥学院北京101416 解放军63611部队库尔勒841001 北京电子工程总体研究所北京100854 空军指挥学院战略战役系北京100097

为实现火力高效机动分配,针对带时间窗车辆路径问题,引入时间地理学的概念,在二维平面的基础上增加时间作为第三维度,建立描述移动对象时空可达性的优化模型。对导弹防御这类时敏强的作战场景通过时空棱柱进行表达和分析,形成时空路径,... 详细信息

为实现火力高效机动分配,针对带时间窗车辆路径问题,引入时间地理学的概念,在二维平面的基础上增加时间作为第三维度,建立描述移动对象时空可达性的优化模型。对导弹防御这类时敏强的作战场景通过时空棱柱进行表达和分析,形成时空路径,进而配置作战资源,协同打击时序,为指挥控制中涉及的机动作战问题提供必要的决策支撑。

关键词：时间地理学车辆路径问题时间窗时空棱柱时空路径

注射式微流控芯片全集成核酸分析系统与精准医疗应用

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中国激光 2024年第9期51卷 190-199页

作者：黄琴黄乐阳靳翔宇毛则尹邓安妮吕文琦钟豪王铈弘石艺璇陈家辉黄世光黄国亮清华大学医学院生物医学工程系北京100084

核酸检测方法可快速鉴定特异基因指标,但其广泛应用受限于多种仪器设备串行使用以及对操作人员的高专业技术要求。本团队开发了一套注射式微流控芯片全集成核酸分析系统,该系统主要包含两大模块,分别是可以为不同类型临床样本提供多种... 详细信息

核酸检测方法可快速鉴定特异基因指标,但其广泛应用受限于多种仪器设备串行使用以及对操作人员的高专业技术要求。本团队开发了一套注射式微流控芯片全集成核酸分析系统,该系统主要包含两大模块,分别是可以为不同类型临床样本提供多种核酸提取方法的全自动注射式核酸提取模块,以及基于微流控芯片的微纳体系多指标联合并行检测等温扩增核酸检测模块。这两大模块既可以单独发挥各自的功能,也可以组合成全集成注射式微流控芯片核酸分析系统,形成全集成自动化、微纳反应体系、快速、多指标联合并行检测的核酸检测分析平台。采用本团队开发的注射式微流控芯片全集成核酸分析系统,分别对热带念珠菌标准株培养菌液和64例外阴阴道念珠菌感染疾病的临床拭子样本进行检测。结果显示:本系统对菌液的最低检测限为3.95×102 CFU/mL,而且样品制备更方便快捷,仅需1次加样操作,核酸提取时间为10 min;64例临床样本检测效果与金标准培养法相比,卡方检验为1,Kappa值为0.950,说明两种方法无显著差异,且一致性很高。本团队开发的注射式微流控芯片全集成核酸分析系统,可以为临床多指标微纳体系核酸快速检测提供一个可靠的平台,为临床医疗应用提供精准快检技术与便捷分析仪器支撑。

关键词：医用光学注射式微流控芯片全集成核酸分析系统精准医疗应用

Ag_(2)O/TiO_(2)催化剂可见光催化脱硝性能

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中国环境科学 2024年第10期44卷 5397-5405页

作者：王淑勤董剑鑫李金梦华北电力大学环境科学与工程系河北保定071003 河北省燃煤电站烟气多污染物协同控制重点实验室华北电力大学河北保定071003

通过水热法制备锐钛矿TiO_(2)并与Ag_(2)O复合构建催化剂.利用BET,XrD,XpS等表征分析催化剂,并以NO为处理对象,探究反应条件对催化剂脱硝效率影响.结果表明,可见光下,当反应体系中NO浓度为23.6mg/m^(3)且氨气与氮气摩尔比为1:1时,Ag_(2)... 详细信息

通过水热法制备锐钛矿TiO_(2)并与Ag_(2)O复合构建催化剂.利用BET,XrD,XpS等表征分析催化剂,并以NO为处理对象,探究反应条件对催化剂脱硝效率影响.结果表明,可见光下,当反应体系中NO浓度为23.6mg/m^(3)且氨气与氮气摩尔比为1:1时,Ag_(2)O/TiO_(2)(10%)的脱硝效率最佳达92.00%.进一步探究发现,改变反应体系中烟气湿度,脱硝效率基本不变.且同时存在CO_(2),SO_(2),NO等气体时,其脱硝效率可保持71.43%.表征结果显示与Ag_(2)O复合后比表面积增大,禁带宽度降低,pL谱峰强度降低,光电流密度提升.反应后的催化剂出现硝基非对称伸缩振动峰,因此推测,在反应进程中·O_(2)^(-),·OH,·O自由基作为氧化剂先将NO氧化为NO_(2),再进一步氧化为NO_(3)^(-),实现NO_(x)的脱除.当NH_(3)与NO_(2)的同时存在时,进一步将未完全反应的NO还原为N_(2),促进污染气体的转化,进一步提升脱硝效率.

关键词： Ag_(2)O/TiO_(2) 可见光催化脱硝

Dynamic Encryption and Secure Transmission of Terminal Data Files

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Computers, Materials & Continua 2022年第4期71卷 1221-1232页

作者： ruchun Jia Yang Xin Bo Liu qin qin Wangjiang Campus of Sichuan university 610065ChengduChina Beijing university of post and Telecommunications 100876BeijingChina National university of Defense Technology 410073ChangshaChina Loughborough university E203BSLondonBritain

Data is the last defense line of security,in order to prevent data loss,no matter where the data is stored,copied or transmitted,it is necessary to accurately detect the data type,and further clarify the form and encryption structure of the data transmission process to ensure the accuracy of the data,so as to prevent data leakage,take the data characteristics as the core,use transparent encryption and decryption technology as the leading,and According to the data element characteristics such as identity authentication,authority management,outgoing management,file audit and external device management,the terminal data is marked with attributes to form a data leakage prevention module with data function,so as to control the data in the whole life cycle from creation,storage,transmission,use to destruction,no matter whether the data is stored in the server,pC or mobile device,provide unified policy management,form ecological data chain with vital characteristics,and provide comprehensive protection system for file dynamic encryption transmission,such as prevention in advance,control in the event,and audit after the event,so as to ensure the security of dynamic encryption in the process of file transmission,ensure the core data of the file,and help the enterprise keep away from the risk of data leakage.

关键词： Terminal data data anti disclosure dynamic symmetric key dncryption algorithm secure transmission

Self-organization of reconfigurable protocol Stack for Networked control systems

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International Journal of Automation and computing 2011年第2期8卷 221-235页

作者： Chun-Jie Zhou Hui chen Yuan-qing qin Yu-Feng Shi Guang-Can Yu Key Laboratory of Ministry of Education for Image processing and Intelligent control Department of Control Science and Engineering Huazhong University Science and Technology Wuhan 430074 PRC

In networked control systems （NCS）,the control performance depends on not only the control algorithm but also the communication protocol *** performance degradation introduced by the heterogeneous and dynamic communication environment has intensified the need for the reconfigurable protocol *** this paper,a novel architecture for the reconfigurable protocol stack is proposed,which is a unified specification of the protocol components and service interfaces supporting both static and dynamic reconfiguration for existing industrial communication *** the architecture,a triple-level self-organization structure is designed to manage the dynamic reconfiguration procedure based on information exchanges inside and outside the protocol ***,the protocol stack can be self-adaptive to various environment and system requirements through the reconfiguration of working mode,routing and scheduling ***,the study on the protocol of dynamic address management is conducted for the system of controller area network （CAN）.The results show the efficiency of our self-organizing architecture for the implementation of a reconfigurable protocol stack.

关键词： Networked control system (NCS) communication network self-organization protocol stack reconfiguration

Design and Implementation of ZigBee Wireless Sensor and control Network system in Greenhouse

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Design and Implementation of ZigBee Wireless Sensor and Cont...

Broadband energy harvesting based on one-to-one internal resonance

第36届中国控制会议

作者： Fang chen Linlin qin Xiaofeng Li Gang Wu Chun Shi department of Automation University of Science and Technology of China

ISBN: (纸本)9781538629185

The cable acquisition and control system of the traditional greenhouse has many disadvantages such as complicated wiring,high cost and lack of accuracy and *** order to solve those problems,a greenhouse acquisition and control system based on ZigBee wireless sensor network（WSN） is designed in this *** ZigBee with temperature sensor DS18B20 and humidity sensor AM2301 is used as the sensor node,the fan and the wet curtain formed as two controller nodes which are respectively connected with the ZigBee *** coordinator receives environmental data collected by the sensor nodes,and then sends the control commands to the controller nodes after processing and analyzing the data,which changes the execution status of the fan and the wet curtain,so as to adjust temperature and humidity inside the greenhouse,providing suitable growth environment for *** experimental results show that the system can realize wireless collection of greenhouse environment data and the control of main equipment in the *** greenhouse acquisition and control system based on WSN with low cost and low power consumption has reduced labour intensity,and the data packet loss rate is zero,which is applicable for small greenhouse monitoring and control with good accuracy and scalability.

关键词： Greenhouse WSN control

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Chinese physics B 2020年第10期29卷 195-201页

作者： Wen-An Jiang Xin-Dong Ma Xiu-Jing Han Li-Qun chen qin-Sheng Bi Faculty of Civil engineering and Mechanics Jiangsu UniversityZhenjiang 212013China School of Science Harbin Institute of TechnologyShenzhen 518055China department of Mechanics Shanghai UniversityShanghai 200072China

We design an electromechanical transducer harvesting system with one-to-one internal resonance that can emerge a broader spectrum vibrations. The novel harvester is composed of a Duffing electrical circuit coupled to a mobile rod, and the coupling between both components is realized via the electromagnetic force. Approximate analytical solutions of the electromechanical system are carried out by introducing the multiple scales analysis, also the nonlinear modulation equation for one-to-one internal resonance is obtained. The character of broadband harvesting performance are analyzed, the two peaks and one jump phenomenon bending to the right for variation of control parameters are observed. It is shown that an advanced bandwidth over a corresponding linear model that does not possess a modal energy interchange.

关键词： energy harvesting internal resonance broadband nonlinear modal interactions