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

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Sailing Route and Speed Optimization for Green Intermodal Transportation 绿色多式联运的航路和航速优化
Pub Date : 2020-09-01 DOI: 10.1109/ICITE50838.2020.9231520
Haitao Ji, Peng Wu
We study a third party logistics company, who uses highway and maritime transportation to deliver a set of commodities from their origins at their release times to their destinations no later than their deadlines. The paper aims to optimize sailing routes and speeds for these commodities by trucks and scheduled maritime services while minimizing the total cost and carbon emissions. We propose a bi-objective non-linear programming model, then develop a new algorithm to solve this model by combining the $mathcal{E}$ -constraint method and a fuzzy logic method. A set of Pareto solutions can be obtained by the former, meanwhile optimal solutions according to the preferences of decision makers can be selected by the fuzzy logic method. Finally, analysis based on a case study from road-sea intermodal transportation in China shows the potential benefits. The results of a computational study indicate that the proposed model and method can give optimal sailing routes and speeds for decision makers.
我们研究了一家第三方物流公司,该公司使用公路和海上运输将一组商品在放行时间内从原产地运送到目的地,不迟于最后期限。本文旨在通过卡车和定期海运服务优化这些商品的航行路线和速度,同时最大限度地降低总成本和碳排放。提出了一个双目标非线性规划模型,并结合$mathcal{E}$约束方法和模糊逻辑方法,提出了求解该模型的新算法。前者可以得到一组Pareto解,同时模糊逻辑方法可以根据决策者的偏好选择最优解。最后,以中国陆海多式联运为例,分析了其潜在效益。计算结果表明,所提出的模型和方法可以为决策者提供最优的航行路线和航速。
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引用次数: 1
Two-way Vehicle Scheduling Approach in Public Transit Based on Tabu Search and Dynamic Programming Algorithm 基于禁忌搜索和动态规划算法的公共交通双向车辆调度方法
Pub Date : 2020-09-01 DOI: 10.1109/ICITE50838.2020.9231516
Xinchao Zhao, Juan Lu, Hao Sun, Shimin Hu
We provide an approach for solving two-way public transportation scheduling, which mainly uses tabu search algorithm and dynamic programming algorithm for vehicle scheduling. Establish a model with the goal of minimizing the number of vehicles and the number of drivers and fully consider the restrictions of drivers' rest time (dwell time), the maximum task volume of vehicles, whether they are dead heading, whether they are synchronization, etc. On the basis of significant savings in operating costs, improve the driver's work efficiency and ensure the driver's rest time (dwell time), thereby providing a guarantee for safe and efficient vehicle operation. We also applied the method to the lines of zheng zhou bus communication corporation, and the results showed that our plan was effective and efficient.
提出了一种求解双向公共交通调度的方法,主要采用禁忌搜索算法和动态规划算法进行车辆调度。建立以车辆数量和驾驶员数量最少为目标的模型,充分考虑驾驶员休息时间(停留时间)、车辆最大任务量、是否死向、是否同步等限制。在显著节约运行成本的基础上,提高驾驶员的工作效率,保证驾驶员的休息时间(停留时间),从而为车辆的安全高效运行提供保障。并将该方法应用于郑州市公交通信公司的线路,结果表明该方案是有效的。
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引用次数: 2
Prediction Model of Inland Ship Fuel Consumption Considering Influence of Navigation Status and Environmental Factors 考虑航行状况和环境因素影响的内河船舶燃油消耗预测模型
Pub Date : 2020-09-01 DOI: 10.1109/ICITE50838.2020.9231506
Zhi Yuan, Jingxian Liu, Yi Liu, B. Tu, Yue Li, Yulu Liu, Zongzhi Li
The strategy of ecological priority and green development made the fuel consumption of inland ships have received unprecedented attention. Fuel consumption prediction of inland ships can provide decision support for navigation planning and energy supervision. This paper takes the ships sailing on the Yangtze River trunk line as the research object, first of all, the navigation data is collected by the multi-source sensor. And then, consider the comprehensive influence of status monitoring data and environmental factors, the improved artificial neural network (ANN) is tailored to build the fuel consumption prediction model based on real-time monitoring data and environmental data. Finally, the constructed prediction model is analyzed and verified by a large amount of measurement data, and its performance of fuel consumption prediction is proved by comparing it with the traditional regression models.
生态优先、绿色发展的战略使得内河船舶的燃油消耗受到了前所未有的关注。内河船舶燃油消耗预测可以为航行规划和能源监管提供决策支持。本文以长江干线上航行的船舶为研究对象,首先采用多源传感器采集导航数据;然后,考虑状态监测数据和环境因素的综合影响,定制改进的人工神经网络(ANN),构建基于实时监测数据和环境数据的油耗预测模型。最后,通过大量的实测数据对所构建的预测模型进行分析和验证,并与传统的回归模型进行比较,证明了所构建的预测模型的油耗预测性能。
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引用次数: 0
Long Term Traffic Prediction in Highway Using Parallel CNN 基于并行CNN的高速公路长期交通预测
Pub Date : 2020-09-01 DOI: 10.1109/ICITE50838.2020.9231436
Donghyun Lim, Minhyeok Lee, Junhee Seok
For navigation system, predicting future traffic conditions is crucial. To predict the traffic condition, statistical methods and neural network models have been studied. However, conventional methods have three limitations in which only the temporal properties are used, only narrow sections or time steps are predicted and not general road sections such as all section of highway but specific sections are used as test results. This paper proposes a parallel Convolutional Neural Network (CNN) that uses spatiotemporal properties and predicts for the next five hours and up to 400 km ranges in Korea's representative highway. Using a highway dataset, the proposed parallel CNN is trained and evaluated. As a result, the result of our model is improved by 10.6%, in terms of Root Mean Square Error (RMSE), compared to the conventional method. Moreover, in terms of the average of Average Speed Difference (ASD), the result of our model is improved by 63.5%.
对于导航系统来说,预测未来的交通状况至关重要。为了预测交通状况,研究了统计方法和神经网络模型。然而,传统的方法有三个局限性,即只使用时间属性,只预测狭窄的路段或时间步长,不使用一般路段(如公路的所有路段)而是使用特定路段作为测试结果。本文提出了一种并行卷积神经网络(CNN),该网络利用时空特性预测韩国代表性高速公路未来5小时和400公里范围内的情况。使用高速公路数据集,对所提出的并行CNN进行训练和评估。因此,与传统方法相比,我们模型的结果在均方根误差(RMSE)方面提高了10.6%。此外,在平均速度差(ASD)的平均值方面,我们的模型结果提高了63.5%。
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引用次数: 2
Estimating Bus Speed Distribution of Bimodal Traffic Using Vine Copula 利用Vine Copula估计双峰交通公交速度分布
Pub Date : 2020-09-01 DOI: 10.1109/ICITE50838.2020.9231440
Shuaiyu Zhang, Hui Fu, Changpei Huang
Accurate estimation of bus speed can improve urban mobility by helping passengers plan their trips better. However, it is difficult to estimate bus speed because of the interaction of social vehicles and buses in the road network. In this paper, a vine copula-based approach is proposed to model conditional probability distribution of bus speed by accounting for cars correlation. The marginal distributions of car speed and bus speed of consecutive segments along on arterial road are estimated by fusing multi-resource data. The D-vine copula model is introduced to model the dependent structure of bimodal traffic speed in the adjacent segments between bus stops. Moreover, the conditional probability distribution curves are estimated based on the D-vine copula model. The simulated results illustrate that the proposed D-vine copula model is applicable for revealing complex correlation between buses and cars using the corresponding conditional probability distribution of bus speed.
准确估计公交速度可以帮助乘客更好地规划行程,从而改善城市交通。然而,由于道路网络中社会车辆和公共汽车的相互作用,很难估计公共汽车的速度。本文提出了一种基于vine copula的公交车速度条件概率分布模型,该模型考虑了车辆的相关性。通过融合多资源数据,估计了主干道上连续路段的汽车速度和公交车速度的边际分布。引入D-vine copula模型对公交站点间相邻路段的双峰交通速度依赖结构进行建模。此外,基于D-vine copula模型估计了条件概率分布曲线。仿真结果表明,所提出的D-vine copula模型可以利用相应的公交速度条件概率分布来揭示公交与小车之间的复杂相关性。
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引用次数: 0
Research on Handling Equipment Allocation of Rail-Sea Intermodal Transportation in Container Terminals 集装箱码头海铁联运装卸设备配置研究
Pub Date : 2020-09-01 DOI: 10.1109/ICITE50838.2020.9231381
Naiyu Wang, M. Shen, Yongcun Wei
Optimization of equipment configuration is a key technology to improve the efficiency of loading and unloading transfer. Aiming at the allocation problem of rail-sea intermodal transportation handling equipment in container terminals, this paper summarizes the factors that affect the rail-sea intermodal transportation handling equipment configuration, and puts forward the principles that should be considered when configuring the equipment. Under the loading and unloading process of “quay crane, truck, rail crane”, the flow of equipment quantity configuration is designed. It provides an important basis for the equipment configuration of the sea-rail intermodal container port.
优化设备配置是提高装卸搬运效率的关键技术。针对集装箱码头海铁联运装卸设备配置问题,总结了影响海铁联运装卸设备配置的因素,提出了配置设备时应考虑的原则。在“岸吊、汽车、轨道吊”装卸过程中,设计了设备数量配置流程。为海铁联运集装箱港口的设备配置提供了重要依据。
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引用次数: 0
Blind Information Extraction of Machine Faults Based on Separating Matrix 基于分离矩阵的机械故障盲信息提取
Pub Date : 2020-09-01 DOI: 10.1109/ICITE50838.2020.9231395
Hao Li, Yifan Tan, Y. Pu
Blind signal processing is an effective feature extraction method for mechanical vibration signals. However due to noise corruption, independent source signals can't always be accurately recovered or separated from the acquired sensor observations. Then feature information extracted from source signals can't naturally represent machine states of the detected mechanical equipment. Generally in blind signal processing, the separating matrix may contain as much information contents as the separated source signals. The separating matrix can directly be processed to extract its singular values as useful feature information by the singular value decomposition (SVD) method. Thus a blind information extraction method was proposed to extract singular values of separating matrix as the desired feature information of the detected machine. The experimental results of gear pump indicate that this method can be applied to feature extraction of mechanical equipment.
盲信号处理是一种有效的机械振动信号特征提取方法。然而,由于噪声的破坏,独立的源信号不能总是准确地从采集的传感器观测中恢复或分离出来。这样,从源信号中提取的特征信息就不能很自然地代表被检测机械设备的机器状态。一般在盲信号处理中,分离矩阵所包含的信息量与分离后的源信号所包含的信息量相当。通过奇异值分解(SVD)方法,可以直接对分离矩阵进行处理,提取其奇异值作为有用的特征信息。为此,提出了一种盲信息提取方法,提取分离矩阵的奇异值作为被检测机器的期望特征信息。齿轮泵的实验结果表明,该方法可用于机械设备的特征提取。
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引用次数: 1
A Method of Automatic Test Case Generation Based on CT-LSSVM Algorithm in FAO Systems FAO系统中基于CT-LSSVM算法的测试用例自动生成方法
Pub Date : 2020-09-01 DOI: 10.1109/ICITE50838.2020.9231435
Sha Wang, Qingyuan Shang, Zhujun Ling, Dandan Liu, Xiangxian Chen
The FAO system is a new-generation railway signaling system, the comprehensive and accurate testing is the main means to verify the safety and stability of the system, and the design and generation of test cases is an important link of the system testing. Traditionally, test cases are manually generated, which is inefficient, time-consuming and inaccurate. To solve this problem, we proposed an automatic test case generation method for the FAO system specified scenario using the CT-LSSVM algorithm. The CT algorithm was used to realize multi-factor combination to generate test cases, and the LSSVM method was used to predict and analyze the expected results of the test cases. The results showed that when the LSSVM method was used to model and analyze the test cases generated by the CT five-factor combination, the recognition rate of the calibration set was 96.58% and the recognition rate of the test set was 97.73%; At the same time, some test cases of the twelve-factor combination were predicted and analyzed, and the recognition rate reached 98.57%. This proves that the CT-LSSVM method can be applied to the test case generation of the FAO system.
FAO系统是新一代铁路信号系统,全面准确的测试是验证系统安全性和稳定性的主要手段,测试用例的设计和生成是系统测试的重要环节。传统上,测试用例是手工生成的,这是低效、耗时和不准确的。为了解决这一问题,我们提出了一种基于CT-LSSVM算法的FAO系统指定场景的自动测试用例生成方法。采用CT算法实现多因素组合生成测试用例,采用LSSVM方法对测试用例的预期结果进行预测和分析。结果表明:当使用LSSVM方法对CT五因子组合生成的测试用例进行建模和分析时,校准集的识别率为96.58%,测试集的识别率为97.73%;同时,对12因素组合的部分测试用例进行预测分析,识别率达到98.57%。这证明了CT-LSSVM方法可以应用于FAO系统的测试用例生成。
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引用次数: 0
Analysis of Electric Vehicle Charging Facilities Operation Data 电动汽车充电设施运行数据分析
Pub Date : 2020-09-01 DOI: 10.1109/ICITE50838.2020.9231348
Juan Liu, Danping Zou, Yuchun Chen, Zhongjian Chu
In future, electric vehicle (EV) charging enterprises will change from simple charging service to data service, information service and other modes. This paper analyzes the operating platform data of EV charging facilities from multiple perspectives. From the user's point of view, this paper analyzes the user's mobile terminal, gender and age distribution, consumption ability and payment habits. According to time dimensions of week, quarter and hour, the charging behavior pattern and charging load distribution are mainly explored. From the perspective of operators, this paper studies the load distribution of charging stations, the utilization rate, and income of AC/DC piles in different areas, recharge income, transaction amount and so on. Finally, the user group is depicted, the benefit points of charging operators are summarized, and corresponding suggestions are put forward for charging facility operation, in the hope of improving user experience and stickiness, and exploring a business model that can further create added value.
未来,电动汽车充电企业将从简单的充电服务向数据服务、信息服务等模式转变。本文从多个角度对电动汽车充电设施运营平台数据进行分析。本文从用户角度出发,分析了用户的移动端、性别和年龄分布、消费能力和支付习惯。根据周、季度和小时三个时间维度,重点探讨了充电行为模式和充电负荷分布。本文从运营商的角度,研究充电站的负荷分布、不同区域交直流桩的利用率、收益、充电收益、交易金额等。最后,对用户群体进行描绘,总结充电运营商的利益点,并对充电设施运营提出相应的建议,以期提升用户体验和粘性,探索能够进一步创造附加价值的商业模式。
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引用次数: 4
The SIDRA Based Analysis on Operations of Three-Leg Modern Roundabout with Single-Lane Approaches 基于SIDRA的单车道三腿现代环形交叉口运行分析
Pub Date : 2020-09-01 DOI: 10.1109/ICITE50838.2020.9231340
Y. Zhang, Hongqi Liu, Jian Wang, Guanyun Wang
Modern roundabouts are widely implemented abroad because of high capacity and well safety performance, whereas there are few studies on related theories of modern roundabouts in China. Only one three-leg modern roundabout with single-lane approaches was deployed in Suichang, Zhejiang Province of China, at present. In this paper, traffic flow were collected by laser velocimeter and digital cameras, and a simulation model was established by the SIDRA, the operations of the three-leg roundabout were analyzed, and the influences of the proportion of left-turning traffic in entering traffic volume on operations have been studied. Retrieve the critical parameters, including minimum headway, following headway and critical gap from the traffic flow data collected on-site, and select average control delay, the 95th percentile queue length and V/C as the assessment indicators. The results indicate that the 95th percentile queue length and delay will increase gently with the increase of traffic volume when the entering traffic volume is less than or equal to 600 veh/h with the proportion of left-turn traffic flow less than 20‰, or it is less than or equal to 500 veh/h with the proportion of left turn less than 20‰, and vice versa. The Level of Service of modern roundabouts can basically reach Level-III when the entering traffic volume is less than or equal to 600 veh/h.
现代环形交叉口因其通行能力高、安全性能好,在国外得到广泛应用,而国内对现代环形交叉口的相关理论研究较少。中国浙江省遂昌目前只部署了一条单车道的三腿现代环形交叉路口。本文利用激光测速仪和数码摄像机采集交通流量,通过SIDRA建立仿真模型,对三腿环形交叉口的运行情况进行了分析,研究了左转弯交通量占进入交通量的比例对运行的影响。从现场采集的交通流数据中提取最小车头时距、跟随车头时距、临界间隙等关键参数,选取平均控制延迟、第95百分位队列长度和V/C作为考核指标。结果表明:当进入车流量小于等于600 veh/h且左转车流量比例小于20‰时,第95百分位队列长度和延误随车流量的增加而缓慢增加;当进入车流量小于等于500 veh/h且左转车流量比例小于20‰时,第95百分位队列长度和延误随车流量的增加而缓慢增加;反之亦然。现代环形交叉口的服务水平在进入车流量小于等于600veh /h时基本可以达到iii级。
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引用次数: 0
期刊
2020 IEEE 5th International Conference on Intelligent Transportation Engineering (ICITE)
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