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第三十九届中国控制会议

作者： Changqing Sun fuquan zheng Guangxu Zhou Kun Guo Institute of Automation Qilu University of Technology(Shandong Academy of Sciences) Shandong Provincial Key Laboratory of Automotive Electronics Technology

With the emergence of industry 4.0 and Internet of things(IOT), more and more practical requirements need seamless connection from the smallest sensor to enterprise level systems and other systems with simple, convenient, reliable and economic approach. LoRa is a low-power wide area network(LPWAN) solution specifically designed for IoT devices that send and receive small amounts of data over a range of many kilometers with minimal power consumption. At the system architecture level, Lora is considered as a physical layer technology based on OSI model, mainly based on Chirp spread-spectrum(CSS) technology. LoRa is resulted in a robust and reliable technology compared to other standardized wireless solutions such as Zigbee, Bluetooth, WiFi, and 3 G/4 G cellular. In this paper, we have designed a single-channel LoRa gateway for Industrial IoT cloud applications using inexpensive single-board computer naming Raspberry Pi plus a LoRa add-on board with the necessary integrated circuits for wireless data communication. The system adopting the LoRa LPWAN technology consists of end devices, gateways, and cloud IoT services. The proposal gateway sends and receives LoRa messages to and from end devices and communicates with upstream cloud application servers through HTTP RESTful protocol and IoT-standard MQTT protocol, according to different data types and specific functional requirements. Unlike other ready-to-use LoRa gateways available on the market in which these gateways simply pass all the original LoRa packets back and forth between and network server over the air called "packet forwarding" mode, the proposal gateway contains smart-agent managing connectivity to devices, coordinating polling mechanism, decoding the packets, passing periodically the unified data to the public or private cloud service applications. Aside based on the embedded web server, the configuration of the gateway is carried out through the web page with desktop or mobile application and it can be u

关键词： LoRa LoRaWAN gateway Industrial Internet of Things(IoT) Raspberry Pi

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The Research of Indoor Three-Dimensional Positioning Algorithm Based on Ultra-Wideband Technology

The Research of Indoor Three-Dimensional Positioning Algorit...

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第三十九届中国控制会议

作者： Xin Wang Zehua Huang fuquan zheng Xincheng Tian School of Control Science and Engineering Shandong University Institute of Automation of Shandong Academy of Sciences

In the positioning of the target in the three-dimensional indoor scene, the non-line of sight(NLOS) error caused by the occlusion of the obstacle will seriously reduce the positioning accuracy of Chan algorithm. The Taylor series positioning algorithm can suppress the NLOS error, but the algorithm is dependent on the selection of the initial value, and the initial value selection is not suitable, which can lead to the non-convergence of the algorithm. Aiming at the above problems, a fast and accurate Chan-Taylor series joint three-dimensional localization algorithm is proposed. First, the time of arrival(TOA) data obtained by the ultra-wideband(UWB) technology measurement is analyzed by the residual discrimination method, and whether the NLOS error exists in the measured data is identified. Then, aiming at the existence of NLOS error, the positioning result obtained by the Chan algorithm is used as the initial positioning value of the Taylor series positioning algorithm, and the positioning position is further iteratively calculated by the Taylor series expansion method. In the case of the line of sight distance(LOS), a single Chan location algorithm is still used for calculation. The experimental results show that the Chan-Taylor series joint three-dimensional localization algorithm improves the positioning speed and effectively suppresses the adverse effect of NLOS error on the positioning accuracy, and can reach the positioning accuracy of less than 0.2 m in 73% case.

关键词： Three-dimensional positioning NLOS Chan algorithm Taylor series expansion algorithm

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MQTT Protocol and Implementation of Equipment Management System for Industrial Internet of Things

MQTT Protocol and Implementation of Equipment Management Sys...

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第43届中国控制会议

作者： Weiping Wang Yiling Zhao Yuan Liu Guanyin Liu fuquan zheng Changqing Sun Institute of Automation Qilu University of Technology(Shandong Academy of Sciences) Shandong Provincial Key Laboratory of Automotive Electronics Technology Shandong Sunshine Electric Power Equipment Co. LTD

At present,industrial systems run in a closed space,which makes it difficult to share data among *** problem can be effectively solved by using cloud on industrial equipment Many communication protocols are involved in the cloud on industrial *** paper focuses on the research of MQTT protocol,working protocol,topic service message structure,etc.,and realizes the understanding of MQTT working *** message structure and byte composition are used to grab MQTT protocol packets by Wireshark tool,and compare and verify whether the results are consistent with the results of grabbing protocol packets;Write PHP code,subscribe to the corresponding JSON file,read and save the data in the JSON file in the designed *** the device management system of the Internet of Things cloud platform including data storage and data display modules,visually present the data collected by the device for visitors to view the data at any time,and realize efficient data transmission and processing.

关键词： MQTT Protocol Protocol Analysis Cloud Platform Management System

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慢速烤燃环境下引信热响应特性测试与仿真

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兵工学报 2019年第5期40卷 946-953页

作者：韩炎晖娄文忠冯跃郑福泉北京理工大学机电学院

为揭示不敏感弹药用引信在烤燃试验下的热响应特性,掌握其内部热传递途径及规律,提出烤燃环境下隔爆式引信热响应分析方法。针对引信在受热刺激下的钝感化要求,以典型舰载76mm口径弹头无线电引信为例进行烤燃试验测试与热有限元仿真,开... 详细信息

为揭示不敏感弹药用引信在烤燃试验下的热响应特性,掌握其内部热传递途径及规律,提出烤燃环境下隔爆式引信热响应分析方法。针对引信在受热刺激下的钝感化要求,以典型舰载76mm口径弹头无线电引信为例进行烤燃试验测试与热有限元仿真,开展升温速率为1.17℃/min、终极温度为270℃慢速烤燃环境下的引信热响应特性研究。结果表明:基于热阻抗等效原则的"模块替换法",即以具有相近导热系数的热电偶测温系统替代电池组件,实现了增加嵌入式测温系统不会过多影响引信原有的热量传递通道;设计了可嵌入引信内部的慢速烤燃测温微系统及Teflon材质防热保护壳体,通过试验证实了测温微系统在慢速烤燃环境下具有可靠性高、可同步测试等优势;对比引信内部各组件的温度差异证实了烤燃刺激下引信的热传递途径为压螺-安全和解除保险机构-导爆药-传爆药,明确了增加压螺以及安全和解除保险机构的热阻抗可降低导爆药和传爆药的意外发火概率。

关键词：引信慢速烤燃不敏感嵌入式测温热响应特性

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引信-超宽带强电磁脉冲效应阈值试验研究

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北京航空航天大学学报 2021年第10期47卷 2075-2080页

作者：付胜华娄文忠苏子龙郑福泉北京理工大学机电学院北京100081 北京理工大学重庆创新中心重庆401120

为明晰超宽带电磁脉冲对引信的干扰和损伤影响,确定引信-电磁脉冲效应的阈值区间,针对当前引信-电磁脉冲效应数据样本少,难以准确评估引信的抗电磁脉冲能力的难题,建立了马尔可夫蒙特卡罗估计的引信-电磁脉冲效应阈值分析模型。通过构... 详细信息

为明晰超宽带电磁脉冲对引信的干扰和损伤影响,确定引信-电磁脉冲效应的阈值区间,针对当前引信-电磁脉冲效应数据样本少,难以准确评估引信的抗电磁脉冲能力的难题,建立了马尔可夫蒙特卡罗估计的引信-电磁脉冲效应阈值分析模型。通过构建的超宽带电磁脉冲模拟器的引信效应测试系统,对典型引信进行辐照试验,得到引信-电磁脉冲的效应规律及干扰阈值。试验结果表明:引信通信故障的效应阈值均值为28.262 kV/m,均值的95%可信区间为(27.390,29.129)kV/m;方差的后验期望估计为1.867 kV/m,方差的95%可信区间为(0.834,4.182)kV/m。所提模型可用作多种引信的电磁脉冲效应阈值估计,为提高引信的抗电磁干扰能力提供理论基础和试验手段。

关键词：超宽带强电磁脉冲引信马尔可夫-蒙特卡罗估计阈值分析辐照试验

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引信强电磁脉冲效应仿真与评估方法

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探测与控制学报 2020年第1期42卷 21-24,28页

作者：郑福泉娄文忠杨金刚冯恒振北京理工大学机电学院北京100081 西安机电信息技术研究所陕西西安710065

强电磁脉冲(高功率微波)武器作为新机理定向能武器,成为引信、火工品及制导系统等的最大威胁,越来越受到军事强国的高度关注。为明确引信壳体对强电磁脉冲的屏蔽效果及引信电子系统的干扰、损伤阈值,利用CST微波工作室对引信壳体防护效... 详细信息

强电磁脉冲(高功率微波)武器作为新机理定向能武器,成为引信、火工品及制导系统等的最大威胁,越来越受到军事强国的高度关注。为明确引信壳体对强电磁脉冲的屏蔽效果及引信电子系统的干扰、损伤阈值,利用CST微波工作室对引信壳体防护效能进行仿真,并且以引信壳体及其电子系统为对象进行辐照试验。通过仿真分析和试验验证可知,仿真结果显示引信壳体对电场衰减为27.9 dB。试验结果显示电子系统在壳体防护下,电场强度小于45 kV/m时均能正常工作,在没有防护情况下,当强电磁脉冲电场强度峰值达15 kV/m时,芯片会产生重启复位,使引信起爆出现故障;当场强达50 kV/m时芯片有一定概率会被永久损坏。

关键词：引信强电磁脉冲效应评估

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环形掺热水油气集输管网系统参数计算

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天然气与石油 1998年第4期16卷 1-4页

作者：赵洪激刘扬郑福全大庆石油学院大庆油建四公司

建立了环形掺热水油气集输管网系统的流量、压力、温度等水力热力参数计算方法，编制了计算机软件，用该软件可模拟系统运行情况，确定最佳运行方案，为工程人员提供了有利的设计和使用工具。

关键词：油气集输加热输送参数计算管道系统掺热水

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单螺杆泵特性试验

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石油矿场机械 1999年第2期28卷 30-33页

作者：姜民政朱君郑福全白玉王德金大庆石油学院机械系大庆石油管理局油建公司大庆石油管理局第八采油厂

通过进行单螺杆泵特性参数随泵出口管线结构及吸入口管线结构变化的试验研究，绘出了泵的特性参数与出口压力、吸入口真空度的关系曲线。试验结果表明，改变泵出口管线结构，使泵出口压力在一定范围内工作时，流量变化大，而且泵效率较... 详细信息

通过进行单螺杆泵特性参数随泵出口管线结构及吸入口管线结构变化的试验研究，绘出了泵的特性参数与出口压力、吸入口真空度的关系曲线。试验结果表明，改变泵出口管线结构，使泵出口压力在一定范围内工作时，流量变化大，而且泵效率较高，可以作为泵调整参数的一种手段；而改变泵吸入口管线结构不宜作为泵的调整参数手段。

关键词：螺杆泵特性参数调整参数试验采油泵

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Newly Discovered Native Gold and Bismuth in the Cihai Iron-Cobalt Deposit, Eastern Tianshan, Northwest China

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Acta Geologica Sinica(English Edition) 2016年第3期90卷 928-938页

作者： zheng Jiahao MAO Jingwen YANG fuquan CHAI Fengmei LIU Feng Key Laboratory of Orogenic Belts and Crustal Evolution Ministry of Education School of Earth and Space Sciences Peking University MLR Key Laboratory of Metallogeny and Mineral Assessment Institute of Mineral Resources Chinese Academy of Geological Sciences Xinjiang Key Laboratory for Geodynamic Processes and Metallogenic Prognosis of the Central Asian Orogenic Belt Xinjiang University

The Cihai iron-cobalt deposit is located in the southern part of the eastern Tianshan iron- polymetallic metallogenic belt. Anomalous native gold and bismuth have been newly identified in Cinan mining section of the Cihai deposit. Ore formation in the deposit can be divided into three stages based on geological and petrographical observations：（I） skarn, with the main mineral assemblage being garnet-pyroxene-magnetite; （II） retrograde alteration, forming the main iron ores and including massive magnetite, native gold, native bismuth, and cobalt-bearing minerals, with the main mineral assemblage being ilvaite-magnetite-native gold-native bismuth; and （III） quartz-calcite- sulfide assemblage that contains quartz, calcite, pyrrhotite, cobaltite, and safflorite. Native gold mainly coexists with native bismuth, and they are paragenetically related. The temperature of initial skarn formation was higher than 340~C, and then subsequently decreased to -312~C and ~266~C. The temperature of the hydrothermal fluid during the iron ore depositional event was higher than the melting point of native bismuth （271~C）, and native bismuth melt scavenged gold in the hydrothermal fluid, forming a Bi-Au melt. As the temperature decreased, the Bi-Au melt was decomposed into native gold and native bismuth. The native gold and native bismuth identified during this study can provide a scientific basis for prospecting and exploration for both gold- and bismuth-bearing deposits in the Cihai mining area. The gold mineralization in Cihai is a part of the Early Permian Cu-Ni-Au-Fe polymetallic ore-forming event, and its discovery has implications for the resource potential of other iron skarn deposits in the eastern Tianshan.

关键词： Cihai iron-cobalt deposit native gold native bismuth eastern Tianshan

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Improving the cycle stability of FeCl3-graphite intercalation compounds by polar Fe2O3 trapping in lithium-ion batteries

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Nano Research 2019年第8期12卷 1836-1844页

作者： zheng Li Chengzhi Zhang Fei Han fuquan Zhang Dianwu Zhou Shaohua Xu Hongbo Liu Xuanke Li Jinshui Liu College of Materials Science and Engineering Hunan University Changsha 410082China Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology Hunan UniversityChangsha 410082China State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body Hunan University Changsha 410082China

FeCI3-intercalated graphite intercalation compounds (GICs) with high reversible capacity and high volumetric energy density are attractive anode material alternatives of commercial graphite. However, the rapid capacity decay, which was induced by chloride dissolution and shuttling issues, hindered their practical application. To address this problem, here, we introduce flake-like Fe2O3 species with inherently polar surface on the edge of FeCl3 -intercalated GICs through microwave-assisted transformation of a fraction of FeCl3 component. Theoretical simulations and physical/electrochemical studies demonstrate that the introduced Fe2O3 component can afford sufficient polar active sites for chemically bonding the soluble FeCl3 and LiCl species based on the polar-polar interaction mechanism, further inhibiting the outward diffusion of the chlorides and immobilizing them within the GIC material. In a lithium ion cell, the FeCl3 -intercalated GIC with a suitable Fe2O3 content shows remarkably improved cycling stability with a high reversible capacity of 1,041 mAh·g^-1 at a current density of 200 mA·g^-1. Capacity retention of 91 % is achieved at a high current density of 1,000 mA·g^-1 over 300 cycles. This work opens up the new prospect for immobilizing chlorides by introducing inorganic species in GIC for long-cycle electrochemical batteries.

关键词： transition metal chloride graphite intercalation compound polar-polar interaction anode lithium ion battery

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