Application Status and Promotion Strategy of Integrated Network Teaching Platform——Taking Northwest A&F University as an Example

The development of Internet technology has brought convenience to the development of education and teaching,and has also changed the traditional methods and means of education and teaching. The construction of an integrated network teaching platform based on Internet technology brings new opportunities for the development of higher education. Taking the construction of the integrated network teaching platform of Northwest A&F University as an example,the current situation and existing problems in the construction of the integrated network teaching platform of the Northwest A&F University are explained. By proposing the promotion strategies for the application of the integrated network teaching platform,the construction of the integrated network teaching platform is improved,thereby facilitating the online and offline mixed teaching and further promoting the improvement of teaching level and teaching effect.

Tour Planning Design for Mobile Robots Using Pruned Adaptive Resonance Theory Networks

The development of intelligent algorithms for controlling autonomous mobile robots in real-time activities has increased dramatically in recent years.However,conventional intelligent algorithms currently fail to accurately predict unexpected obstacles involved in tour paths and thereby suffer from inefficient tour trajectories.The present study addresses these issues by proposing a potential field integrated pruned adaptive resonance theory(PPART)neural network for effectively managing the touring process of autonomous mobile robots in real-time.The proposed system is implemented using the AlphaBot platform,and the performance of the system is evaluated according to the obstacle prediction accuracy,path detection accuracy,time-lapse,tour length,and the overall accuracy of the system.The proposed system provide a very high obstacle prediction accuracy of 99.61%.Accordingly,the proposed tour planning design effectively predicts unexpected obstacles in the environment and thereby increases the overall efficiency of tour navigation.

Design and application of integrated automation system platform of mine based on PON

This article analyzes the design and integrates application of a mine integrated automation system platform based on PON. At the beginning, the paper analyzes the basic principle and structure of PON. The set of integrated automation network platform according to the information transmission characteristics of mine based on access network and Ethernet of PON is designed. The paper descripes the platform in detail from aspacts of designs of system hardware, software and others. The results show that the system platform can improve the efficiency and reduce the cost.

Scheme of Railway 5G Integrated Innovation Test Platform

An inevitable trend has already taken shape for the application of the 5th Generation Mobile Communication Technology(5G)in the railway sector.The application scenarios and business types of the railway sector are complex and diverse,so it is indispensable to test and verify the railway 5G before actual deployment.The design and creation of the railway 5G integrated innovation test platform provides engineering design,test and verification conditions for the networking,coverage and business development of 5G public networks and 5G-R in railway scenarios.This paper introduces the design of the overall architecture for the integrated railway 5G innovation test platform according to the railway network requirements,application scenarios and intelligent development trend;respectively elaborates on the design of the 5G-R core network,bearer network and wireless access along loop tracks,in combination with the characteristics of railway scenarios and the requirements of railway dispatching,operation and safety;raises further solutions on the network deployment and coverage schemes of 5G public networks so as to meet the application requirements of 5G public networks.The study results show that the integrated railway 5G innovation test platform scheme contains co-existence of 5G public and private networks,combines the indoor and outdoor scenarios,as well as takes into account of the dynamic and static tests so as to meet the environmental requirements for the integrated railway 5G test and application of all network functions,for which it can provide comprehensive technical support for railway 5G technology research and development,standard formulation,testing,etc.

Three-Dimensional Cooperative Localization via Space-Air-Ground Integrated Networks

The space-air-ground integrated network(SAGIN)combines the superiority of the satellite,aerial,and ground communications,which is envisioned to provide high-precision positioning ability as well as seamless connectivity in the 5G and Beyond 5G(B5G)systems.In this paper,we propose a three-dimensional SAGIN localization scheme for ground agents utilizing multi-source information from satellites,base stations and unmanned aerial vehicles(UAVs).Based on the designed scheme,we derive the positioning performance bound and establish a distributed maximum likelihood algorithm to jointly estimate the positions and clock offsets of ground agents.Simulation results demonstrate the validity of the SAGIN localization scheme and reveal the effects of the number of satellites,the number of base stations,the number of UAVs and clock noise on positioning performance.

基于NS-3网络模拟器的MPQUIC协议仿真研究

随着5G移动视频应用加速落地以及国内视频流需求的迅速激增,迫切需要一种新的数据传输协议来提供可靠的安全性,以保障上层应用处理更多的接入连接以及满足更低的延时需求.多路径QUIC协议(Multipath Quick UDP Internet Connection,MPQUIC)具有拟合多条链路带宽资源、强大连接的容错能力和高可靠性等优点,被认为将在未来移动互联网数据传输中发挥重要的作用.然而,目前国内外研究人员对于MPQUIC协议的相关研究正处于初步阶段,该协议还没有一个普适性的、开源的仿真平台.因此,借助全球网络仿真领域应用最广的NS-3网络模拟器搭建了MPQUIC仿真平台(ns3-mpquic),为相关学者提供研究MPQUIC协议的开源、免费、普适的基础平台,为全球专家学者对MPQUIC协议的模拟部署和优化提供助力.

Structure Analysis and Control Optimization on High Speed Lift Platform

Dynamic analysis of scissor hydraulic lift platform has been performed to invest/gate the key factors which determine size and shape of the platfolan. By using MATLAB, the position of hydraulic cylinder has been optimized to reduce jacking force of piston and the whole system. Thus structure deformation decreases which is beneficial to control accuracy. Additionally, a new proportion integration differentiation （PID） control mode based on BP neural network has been developed to improve the stability and accuracy for the pasitio^L control in this system. Compared with existing PID tuning meth~~ls and fuzzy self-adjusted PID controllers, the proposed back propagation （BP） based PID controller can achieve better performance for a wide range of complex processes and realize self-tuning of parameters. It was confirmed that the performance of the lift platform regarding the force variation and position accuracy was greatly enhanced by optimizing of the system both in structure and control. Considerable economic benefit can also be achieved thrangh the application of this intelligent PID system.

ON2000一体化配网综合调度自动化系统

一体化是县级调度以及中小型地调今后的发展方向。文中介绍了基于统一支撑平台 ,集调度自动化、配电网自动化、电能量计费、电网分析软件、调度管理以及配电网管理于一体的新一代配网综合调度自动化系统 ON2 0 0 0。阐述了 ON2 0 0 0一体化的系统硬件组成结构、软件组织结构以及系统的总体设计构思 ,介绍了在 ON2 0 0 0一体化平台上实现的功能和技术特点。

基于Ethernet的集成测控网络平台研究

随着企业网络不同层次之间传送的数据信息变得越来越复杂 ,测控网络与信息网络的集成已成为工业测控的发展方向。通过对以太网 (下称Ethernet)与传统现场总线的比较 ,提出基于Ethernet的集成测控网络平台 ,并分析了网络结构模型。

面向教育的3D打印及其网络化交流平台的研究

为了将3D打印与教育结合起来,提升学生的创造能力和专业创新水平,论证了将3D打印应用于教育的可行性和必要性,提出了3D打印与教育结合过程中的难题和发展方向.基于3D打印在高校中应用的现状和3D打印网络化服务的发展趋势,提出了一种符合学生和高校特征的网络化交流平台集成框架,构建了平台系统的体系结构,阐述了它的工作流程和功能设计.在学生、老师、高校3D打印中心和校外合作3D打印中心之间建立了一个交流与加工制造的平台,以实现高校3D打印的资源整合、知识共享和技术创新.开发了该平台,验证了平台运行的可行性.

基于TTCN-3重建测试架构的设计与实现

对LTE接入演进型分组系统(EPS)网络架构进行了研究,构造出了对应网络架构中各模块的测试平台;然后对各模块功能进行分离与归纳,提出各模块的实现平台;并在此基础上搭建了无线资源管理(RRM)无线资源控制(RRC)连接重建测试例的一致性测试平台;最后编写RRC连接重建测试例的测试脚本,并在此平台上进行验证。通过对验证结果进行分析,得出了测试用例设计的正确性以及测试平台的可行性与合理性。

Performance analysis in 3G/ad hoc integrated network

An analytical approach to evaluate the performance of the 3G/ad hoc integrated network is presented. A channel model capturing both path loss and shadowing is applied to the analysis so as to characterize power falloff vs. distance. The 3G/ad hoc integrated network scenario model is introduced briefly. Based on this model, several performances of the 3G/ ad hoc integrated network in terms of outage probability, call dropping probability and new call blocking probability are evaluated. The corresponding performance formulae are deduced in accordance with the analytical models. Meanwhile, the formula of the 3G/ad hoc integrated network capacity is deduced on the basis of the formula of the outage probability. It is observed from extensive simulation and numerical analysis that the 3G/ad hoc integrated network remarkably outperforms the 3G network with regards to the network performance. This derived evaluation approach can be applied into planning and optimization of the 3G/ad hoc network.

任务型教学法在大学英语3+1+X教学模式中的应用

3+1+X的大学英语教学模式是我校基于建构主义理论和信息技术的教改成果。在实践教学中,学生的自主学习是该模式成功实施的关键。通过任务型教学法与大学英语3+1+X教学模式的有效整合,可以进一步完善这一教学模式,提高学生的学习自主性。

Digital Coal Mine Integrated Automation System Based on ControlNet

A three-layer model for digital communication in a mine is proposed. Two basic platforms are discussed: A uniform transmission network and a uniform data warehouse. An actual,ControlNet based,transmission network plat-form suitable for the Jining No.3 coal mine is presented. This network is an information superhighway intended to inte-grate all existing and new automation subsystems. Its standard interface can be used with future subsystems. The net-work,data structure and management decision-making all employ this uniform hardware and software. This effectively avoids the problems of system and information islands seen in traditional mine-automation systems. The construction of the network provides a stable foundation for digital communication in the Jining No.3 coal mine.

浅谈THEOL网络教学综合平台在高校教学中的应用——以新疆教育学院为例

通过对新疆教育学院网络教学综合平台推广使用情况的分析,总结出网络教学综合平台在推广应用中存在的问题,如使用率低、教学资源缺乏、重视程度不够等。针对这些问题,应加强少数民族学生的计算机应用能力水平,加强宣传力度,定期举办应用培训,将网络课程建设纳入教学成果评价标准。

应用型本科院校数学建模课程“2+3”教学模式的探索与实践

应用型本科院校数学建模课程"2+3"教学模式借鉴Seminar教学法,以培养应用型创新人才为出发点与目标,将培养能力融入到掌握知识的过程中。其中,"2"指讲授案例、开展实验,"3"指文献阅读、师生研讨、撰写论文。在数学建模课程"2+3"教学模式中,要搭建网络教学平台,有效延伸、补充课堂教学;开展数学建模案例教学,突出学生创新精神、实践能力的培养;借助数模实验,优化学生知识结构;将"文献阅读、师生研讨、撰写论文"贯穿教学全过程,提升学生的实战能力、协作精神。

Ubiquitous information service networks and technology based on the convergence of communications, computing and control

The rapid development of the IoT(Internet of Things)is bringing about a functional change of communication networks from“information transmission”to“information service”.First,the conception and characteristics of the IoT are in-troduced,i.e.,an Internet of humans,machines,and things meant to achieve smart information services.Then,the technology requirements for realizing ubiquitous and smart information services are described.The corresponding key technologies are also discussed,including the integration of communications,computing and control technology(3C),heterogeneous network fusion theory and technology,intelligent sensor technology and short-distance networking theory,large-scale network transmission theory and technology,the network virtualization and intelligent computing technology geared toward information service,and the collaborative network system and service model geared to the application of the IoT.Finally,the development trends of in-formation technologies and information networks in the next five to ten years are analyzed,and give some suggestions for main research areas to be explored and key issues to be resolved.

基于3D打印及“互联网+”的数字化交流平台

3D打印技术正以惊人的发展速度应用到各个领域。本文基于3D打印应用的现状和3D打印网络化服务的发展趋势,提出了一种基于3D打印及"互联网+"的数字化交流平台集成框架,构建了平台系统的体系结构,阐述了其工作流程和功能设计。

基于泛雅平台的中医5+3一体化班难经选读线上线下混合式教学模式初探

由于难经选读教学时数少,不能满足中医“5+3”一体化班学生的“重经典”“厚基础”的培养需求,山西中医药大学基于泛雅平台将传统教学与现代教学技术相融合,采用线上线下混合式教学,弥补了该课程传统教学中时空限制的不足。师生共同努力适应新教学模式,不断提升中医“5+3”一体化班难经选读的教学效果。

基于3d“畅游高校”综合网络平台的开发和应用

应用3ds Max、Photoshop和Web 3D概念,在VR-Platform中建立虚拟校区,并以虚拟校区为基础建立网络平台。结果表明:该网络平台可通过编辑脚本函数使功能显著增加,平台运行后显示加载页面,然后进入主页面,在主页面点击进入游览调节页面或3D网页页面,游览调节页面中有天气、速度控制系统和背景音乐等,3D网页中有与学校主页相同的网络链接,具有网页的功能。在主页面、游览调节页面和3D网页页面均可进行漫游操作,实现娱乐、导游、宣传功能。