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2020 IEEE 5th International Conference on Intelligent Transportation Engineering (ICITE)最新文献

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Optimization of Pneumatic Overhaul Workflows in Rolling Stock Workshop for Increased Process Efficiency 优化机车车辆车间气动大修工作流程,提高工艺效率
Pub Date : 2020-09-01 DOI: 10.1109/ICITE50838.2020.9231412
Hai Rong Lee, Andrew Keong Ng, Raymond Kong Hee Tay
Train overhaul is of utmost importance to ensure the reliability and availability of train services. As most trains have reached the midway point of their expected useful life, additional mid-life overhauls are scheduled, hence extending the overhaul duration and potentially reducing the number of service trains and increasing the number of crowded train station platforms. This paper, therefore, attempts to optimize pneumatic overhaul workflows in rolling stock workshop through dynamic modeling, simulation, and analysis of workflows; implementation of effective working tools; as well as recommendation of ideal facility layouts. With the aid of FlexSim three-dimensional software package, the coupler overhaul process efficiency is found to improve by 3.9% after implementing a torque multiplier in the coupler overhaul. The pneumatic overhaul process efficiency also increases by 10.8%, equivalent to a reduction of 17.6 working hours, after relocating the brake overhaul station and redeploying idle technicians.
列车大修对保证列车服务的可靠性和可用性至关重要。由于大多数列车已达到预期使用寿命的一半,因此计划进行额外的中期大修,从而延长大修时间,可能减少服务列车的数量,并增加拥挤的火车站站台数量。因此,本文试图通过对工作流程的动态建模、仿真和分析,对机车车辆车间气动大修工作流程进行优化;实施有效的工作工具;以及推荐理想的设施布局。借助FlexSim三维软件包,在联轴器大修过程中实施转矩倍增器后,联轴器大修过程效率提高了3.9%。在重新安置制动大修站和重新部署空闲技术人员后,气动大修过程效率也提高了10.8%,相当于减少了17.6个工作小时。
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引用次数: 0
Route Choice Model of the Major Passenger Group in Urban Rail Transit: A Case Study of Beijing, China 城市轨道交通主要客运群体路线选择模型——以北京市为例
Pub Date : 2020-09-01 DOI: 10.1109/ICITE50838.2020.9231366
Chen Li, Xinjian Liu, Yunyun Bai, Bo Wang, Jianling Huang, Yanyan Chen
It is difficult to find the rules of passenger flow in the urban rail transit (URT) due to the difficulty in the travel choice collection. In order to study the route choice rule, a passenger intention survey has been conducted in Beijing urban rail transit (BURT), which includes the socio-economic attributes, perception of transfer and congestion, and choice intention of passengers. BURT passengers are divided into eight groups based on the socio-economic attributes. Of these groups, the route choice trend of the young and middle-aged passengers with low and medium income is similar, and these passengers account for 75 percent, which is the major passenger group. Then the main factors influencing route choice are extracted, and quantified by uniform cost standard. And route choice model of the major passenger group is constructed based on Logit model. Finally the BURT network is used to verify the validity of this model.
城市轨道交通客流规律由于出行选择收集的困难而难以发现。为了研究路线选择规律,对北京城市轨道交通(BURT)进行了乘客意愿调查,包括社会经济属性、换乘和拥堵感知以及乘客选择意愿。根据社会经济属性,BURT乘客分为8组。在这些人群中,中低收入的中青年乘客的路线选择趋势相似,占75%,是主要的乘客群体。然后提取影响路线选择的主要因素,并采用统一的成本标准进行量化。并基于Logit模型构建了主要客群的航线选择模型。最后利用BURT网络验证了该模型的有效性。
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引用次数: 1
Research on Lean Operations Management Method of Railway Marshalling Yard 铁路编组站精益运营管理方法研究
Pub Date : 2020-09-01 DOI: 10.1109/ICITE50838.2020.9231322
Wenqiao Sun, Qigang Liu, Xiang Li, Min Chen, Yan Zhang
Freight railway plays a more and more important role in China freight logistics industry. The traffic volume is increasing at an annual growth rate of more than 6%, which enhances the importance of increasing carrying capacity of marshalling yards. By using intelligent technologies like satellite positioning, image recognition, and Iot (Internet of Things), methods of accurate marshalling-yards operation data obtaining, transmission and processing are illustrated in the paper. Cargo wagon loading situation inspection is taken as a case study, and explains how to establish an accurate real-time data base for lean operations management, provides an optimized operation process, and displays a control query interface, which increases both safety and efficiency of the operation process.
货运铁路在中国货运物流业中发挥着越来越重要的作用。交通量以每年6%以上的速度增长,提高编组站承载能力的重要性日益凸显。本文运用卫星定位、图像识别、物联网等智能技术,阐述了编组站运行数据的准确获取、传输和处理方法。以货车装载情况检查为例,阐述了如何为精益作业管理建立准确的实时数据库,提供优化的作业流程,并显示控制查询界面,提高了作业流程的安全性和效率。
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引用次数: 0
Research on Traffic Characteristics of Signal Intersections with Mixed Traffic Flow 混合交通流信号交叉口交通特性研究
Pub Date : 2020-09-01 DOI: 10.1109/ICITE50838.2020.9231426
X. Cui, Xiansheng Li, Xue-lian Zheng, X. Zhang, Lan Zhao, Jing-hai Zhang
With the development of intelligent transportation system, the vehicle on the road by a single human gradually evolved into a vehicle flow with automatic driving vehicle and the acceleration automatic vehicle traffic, the mixed with different types of vehicle are bound to impact on traffic characteristics of vehicles, traffic characteristic of intersection is the intersection design and optimization of the premise and foundation. Therefore, this paper uses SUMO to simulate MV, AV and CAV mixed in pairs at different proportions to study the common characteristics of mixed vehicles at urban intersections. Firstly, different following models are defined for different vehicles to describe their different following behavior. Then, by setting the mixing rate of mixed vehicles to gradually increase, the traffic data of mixed vehicles at intersections under different proportions was obtained through simulation. Finally, through data analysis and calculation, the six indicators and the spatial and temporal trajectory map that can represent the traffic characteristics of mixed vehicles at intersections are obtained. From the analysis and comparison of the changing trend of the six indicators with the change of vehicle proportion and the spatial and temporal trajectory map, the optimal proportion of mixed vehicles with traffic capacity can be obtained. The research results can provide theoretical support for intelligent intersection design and optimization.
随着智能交通系统的发展,道路上的车辆由单一的人类车辆逐渐演变为具有车流自动驾驶车辆和加速自动车辆的交通,不同类型车辆的混合必然会对车辆的交通特性产生影响,交叉口的交通特性是交叉口设计和优化的前提和基础。因此,本文采用SUMO模拟不同比例的MV、AV和CAV成对混合,研究城市交叉口混合车辆的共同特征。首先,针对不同的车辆定义不同的跟车模型,描述不同的跟车行为。然后,通过设置混合车辆的混合率逐渐增大,通过仿真得到不同比例下混合车辆在交叉口的交通数据。最后,通过数据分析与计算,得到了能代表混合车辆在交叉口通行特征的6项指标和时空轨迹图。通过分析比较6项指标随车辆比例变化的趋势和时空轨迹图,得出具有通行能力的混合车辆最优比例。研究结果可为智能交叉口设计与优化提供理论支持。
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引用次数: 0
The Safety Design Suggestions of Autonomous Mine Transportation System 矿山自动化运输系统的安全设计建议
Pub Date : 2020-09-01 DOI: 10.1109/ICITE50838.2020.9231329
Binjian Wu, Jianmin Bai, Zhujun Ling, Zaifu Zhou, Feijie Wang, Shunding Hu, Aijun Liu
Autonomous mine transportation technology is an inevitable trend in intelligent development of future industrial Internet. However, existing solutions in the industry usually pay more attention to implementation and optimization of functions and performance, neglecting the ever increasing importance of safety requirements for the mining automation system. This article investigates the current situation and relevant safety standards of the industry and proposes safety system design principles, models, and safety application measures applicable to the autonomous mine transportation technology in an aim to enhancing standardization, normalization, and enterprise management proficiency of mining production.
矿山自动化运输技术是未来工业互联网智能化发展的必然趋势。然而,行业中现有的解决方案往往更注重功能和性能的实现和优化,而忽略了对矿山自动化系统日益重要的安全要求。本文通过对行业现状和相关安全标准的调查,提出了适用于矿山自主运输技术的安全系统设计原则、模型和安全应用措施,旨在提高矿山生产的标准化、规范化和企业管理水平。
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引用次数: 1
Research on Test Method of Commercial Vehicle Forward Collision Warning Systems 商用车前方碰撞预警系统试验方法研究
Pub Date : 2020-09-01 DOI: 10.1109/ICITE50838.2020.9231324
Botong Wang, Shan Zhang, Wenbo Ma, K. Qin, Kuiyuan Guo, Jinxian Gao, Yinghao Ding
Based on the FCWS operating principle, GB / T 33577–2017 and other regulations at home and abroad, this paper puts forward the FCWS test scheme applicable to the particular road conditions in China and studies the warning modes that affect the warning effect of FCWS. Finally the paper completes the real vehicle test of the FCWS performance of commercial vehicle. The final result shows that the FCWS complies with the performance requirements in GB / T 33577-2017. Warning TTC of FCWS is about 3s and FCWS can effectively reduce driving behaviours such as sharp turns and sharp brakes. On the other hand, audio has a better warning effect than visual. This paper not only improves the FCWS test method and evaluation system but also provides a reference for FCWS standard formulation and system development in China.
本文根据FCWS工作原理、GB / T 33577-2017等国内外法规,提出了适用于中国特定路况的FCWS试验方案,并对影响FCWS预警效果的预警模式进行了研究。最后完成了商用车FCWS性能的实车试验。最终测试结果表明,FCWS符合GB / T 33577-2017的性能要求。FCWS的预警TTC约为3s,能够有效减少急转弯、急刹车等驾驶行为。另一方面,音频比视觉具有更好的预警效果。本文不仅完善了FCWS的试验方法和评价体系,而且为国内FCWS标准的制定和体系的发展提供了参考。
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引用次数: 0
Big Data Based Intelligent Operation and Maintenance Platform 基于大数据的智能运维平台
Pub Date : 2020-09-01 DOI: 10.1109/ICITE50838.2020.9231488
Guolin Zhang, Jing Lin, Ying Zhang, Kechong Xue, J. Nan, Bo Li
This paper introduces an intelligent operation and maintenance platform of urban rail transit based on big data, and its application in real projects. Automatic anomaly detection is realized through big data platform of intelligent operation and maintenance. Factors that may cause abnormalities through intelligent analysis are automatically found out. By providing multi-dimensional statistics, users can understand the failure rules of the control system from different aspects.
介绍了一种基于大数据的城市轨道交通智能运维平台及其在实际工程中的应用。通过智能运维大数据平台实现异常自动检测。通过智能分析,自动发现可能导致异常的因素。通过多维度的统计,用户可以从不同的角度了解控制系统的失效规律。
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引用次数: 4
Exploring the Application of BIM Technology in Bridge Inspection BIM技术在桥梁检测中的应用探索
Pub Date : 2020-09-01 DOI: 10.1109/ICITE50838.2020.9231350
Xiaojian Zhang, Zhuopeng Shi, Jiwu Liu, K. Han, Wei-Qi Yan, Xiangyu Zhang, Qi Li
BIM has been widely used in construction, municipal engineering, electric power, transportation and other engineering fields, but the researches and applications in bridge inspection are still at an early stage in recent years.Aiming at the shortcomings of the traditional bridge inspection, giving full play to the advantages of BIM visualization, digitization, coordination, to explore the application of BIM technology in the bridge inspection process and combine with engineering practice experience, verifying the feasibility of BIM is applied in bridge inspection, making more information-based, systematic and intelligent testing of bridge, providing a new train of thought for bridge testing workers.
BIM已广泛应用于建筑、市政、电力、交通等工程领域,但近年来在桥梁检测方面的研究和应用还处于起步阶段。针对传统桥梁检测的不足,充分发挥BIM可视化、数字化、协同化的优势,探索BIM技术在桥梁检测过程中的应用,并结合工程实践经验,验证BIM在桥梁检测中应用的可行性,使桥梁检测更加信息化、系统化、智能化,为桥梁检测工作者提供新的思路。
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引用次数: 0
Study of Passenger Evacuation Capability in Metro Vehicle Using Simulation Methods 地铁车辆乘客疏散能力仿真研究
Pub Date : 2020-09-01 DOI: 10.1109/ICITE50838.2020.9231445
Yazhuo Li, Xia Liu
This paper takes Wuhan metro type A and B vehicles for example, using a simulation method to study the passenger evacuation capability of different metro vehicles. Firstly, the dimensions and interior layout of the two types of carriages have been investigated and compared. Then, passenger evacuation simulation models of these two types of vehicles have been simulated by AnyLogic software. The relationship between the occupant load and the crowd evacuation timeframe was studied under different metro vehicle type. The validation results show that the simulation models are suitable for metro carriage evacuation researches. Through model simulation, it can be seen that, the crowd evacuation time is linear with the number of passengers with correlation coefficients R2 higher than 0.99. The interior space including the number of doors, the width of the carriage, the number of grab poles and the effective area of the carriage are all affect the evacuation efficiency of passengers. Under the condition of full occupancy, the evacuation efficiency of type A vehicle is 14% higher than that of type B.
本文以武汉地铁A型和B型车辆为例,采用仿真方法研究了不同地铁车辆的乘客疏散能力。首先,对两种车厢的尺寸和内部布局进行了调查和比较。然后利用AnyLogic软件对这两类车辆的乘客疏散仿真模型进行仿真。研究了不同地铁车辆类型下乘客负荷与人群疏散时间的关系。验证结果表明,该仿真模型适用于地铁车厢疏散研究。通过模型仿真可以看出,人群疏散时间与乘客人数呈线性关系,相关系数R2大于0.99。车厢的内部空间包括门的数量、车厢的宽度、抓杆的数量和车厢的有效面积都影响着乘客的疏散效率。在满员情况下,A型车辆的疏散效率比B型车辆高14%。
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引用次数: 0
Study on Longitudinal Impulse Law under Braking Condition for Heavy Haul Train with ECP Brake System 重载列车ECP制动系统制动工况纵向冲击规律研究
Pub Date : 2020-09-01 DOI: 10.1109/ICITE50838.2020.9231323
Chun Tian, Benfeng Zhang
This paper studies the time and position of the maximum coupler force of heavy haul train with electrically controlled pneumatic(ECP) system under the ramp change of braking condition, analyzes the causes of longitudinal impulse between vehicles, and studies the transmission law of longitudinal impulse of heavy haul train. The results show that the generation of maximum coupler force is related to ramp and longitudinal impulse transmission. When the initial speed of the train is small and the absolute value of deceleration is small, the main reason for the formation of the maximum coupler force is the influence of the ramp; when the train speed is high or the absolute value of deceleration is large, the main reason for the formation of the maximum coupler force is the longitudinal impulse transmission effect.
本文利用电控气动(ECP)系统研究了重载列车在匝道制动条件变化下的最大耦合器力产生的时间和位置,分析了车辆间纵冲产生的原因,研究了重载列车纵冲的传递规律。结果表明,最大耦合器力的产生与斜向和纵向脉冲传递有关。当列车初速较小时,减速度绝对值较小时,最大耦合器力形成的主要原因是坡道的影响;当列车速度较高或减速度绝对值较大时,形成最大联轴器力的主要原因是纵向脉冲传递效应。
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引用次数: 2
期刊
2020 IEEE 5th International Conference on Intelligent Transportation Engineering (ICITE)
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