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期刊信息

  • 期刊名称：

    Intelligent Transportation Systems, IEEE Transactions on

  • 中文名称： 智能交通系统，IEEE事务
  • 刊频：
  • ISSN： 1524-9050
  • 出版社： -
  • 简介：

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共14条结果
  • 1.

    【24hr】Toward vision-based intelligent navigator: its concept and prototype

    包量

    机译 迈向基于视觉的智能导航仪：其概念和原型
    摘要：Proposes a novel concept of an intelligent navigator that can give a driver timely advice on safe and efficient driving. From both the current traffic conditions obtained from visual data and the driver's goals and preferences in driving, it autonomously generates advice and gives it to the driver. Not only can operational-level advice be generated, such as emergency braking due to an abrupt deceleration of the vehicle in front, but also tactical-level advice, such as lane changing due to a congested situation ahead. Two main components of the intelligent navigator - the advice generation system and the road scene recognition system - are explained. A three-level reasoning architecture is proposed for generating advice in dynamic and uncertain traffic environments. Online experiments using the prototype system show the potential feasibility of the proposed concept.
  • 2.

    【24hr】Emergency vehicle maneuvers and control laws for automated highway systems

    包量

    机译 自动化公路系统的应急车辆操纵和控制法律
    摘要：The operation and transit of emergency vehicles (EVs) on an automated highway system (AHS) designed under the control architecture proposed in the California PATH (Partners for Advanced Transit and Highways) program is described. The term "EVs" is used in a general sense to describe vehicles such as police cars, ambulances and tow trucks, that may service faults inside or outside the AHS. The transit of EVs requires intensive participation of the coordination layer, which directs the interactions of neighboring vehicles, and the link layer, which regulates traffic flow along stretches of highway. Various strategies for these two hierarchical layers that are needed to assign high-priority transit to EVs on the AHS are described. These coordination- and link-layer maneuvers circulate other vehicles around the EV in both free-flowing and stopped traffic.
  • 3.

    【24hr】Development of night-vision system

    包量

    机译 夜视系统的开发
    摘要：A night-vision system has been developed to help reduce vehicle-pedestrian accidents occurring at night. High-temperature objects assumed to be pedestrians are detected by processing the images from infrared stereo cameras mounted on the. vehicle, and the possibility of a collision is judged by calculating the position and relative moving vectors of the pedestrian. In addition, voice guidance is provided and a highlighted infrared image of the pedestrian is displayed at the bottom of the front windshield using a head-up display (HUD). It was determined that the system could judge the possibility of collisions with pedestrians on the road or crossing the road.
  • 4.

    【24hr】An obstacle detection method by fusion of radar and motion stereo

    包量

    机译 雷达与运动立体融合的障碍物检测方法
    摘要：In order to avoid collision with an object that blocks the course of a vehicle, measuring the distance to it and detecting positions of its side boundaries, are necessary. In the paper, an object detection method achieved by the fusion of millimeter-wave radar and a single video camera is proposed. We consider the method as the least expensive solution because at least one camera is necessary for lane marking detection. In the method, the distance is measured by the radar, and the boundaries are found from an image sequence, based on a motion stereo technique with the help of the distance measured by the radar. Since the method does not depend on the appearance of objects, it is capable of detecting not only an automobile but also other objects. Object detection by the method was confirmed through an experiment. In the experiment, both a stationary and a moving object were detected and a pedestrian as well as a vehicle was detected.
  • 5.

    【24hr】Vehicle control algorithms for cooperative driving with automated vehicles and intervehicle communications

    包量

    机译 用于与自动车辆和车辆间通信进行协同驾驶的车辆控制算法
    摘要：Describes the technologies of cooperative driving with automated vehicles and intervehicle communications in the Demo 2000 cooperative driving. Cooperative driving, aiming at the compatibility of safety and efficiency of road traffic, means that automated vehicles drive by forming a flexible platoon over a couple of lanes with a short intervehicle distance while performing lane changing, merging, and leaving the platoon. The vehicles for the demonstration are equipped with automated lateral and longitudinal control functions with localization data by the differential global positioning system (DGPS) and the intervehicle communication function with 5.8-GHz dedicated short range communication (DSRC) designed for the dedicated use in the demonstration. In order to show the feasibility and potential of the technologies, the demonstration was held in November 2000, on a test track with five automated vehicles. The scenario included stop and go, platooning, merging, and obstacle avoidance.
  • 6.

    【24hr】Fast obstacle detection for urban traffic situations

    包量

    机译 快速检测城市交通情况下的障碍物
    • 作者：Franke U.;Heinrich S.;
    • 刊名：IEEE Transactions on Intelligent Transportation Systems
    • 2002年第3期
    摘要：The early recognition of potentially harmful traffic situations is an important goal of vision-based driver assistance systems. Pedestrians, in particular children, are highly endangered in inner city traffic. Within the DaimlerChrysler urban traffic assistance (UTA) project, we are using stereo vision and motion analysis in order to manage those situations. The flow/depth constraint combines both methods in an elegant way and leads to a robust and powerful detection scheme. A ball bouncing on the road often implies a child crossing the street. Since balls appear very small in the images of our cameras and can move considerably fast, a special algorithm has been developed to achieve maximum recognition reliability.
  • 7.

    【24hr】Artificial vision in extreme environments for snowcat tracks detection

    包量

    机译 极端环境中的人工视觉用于雪道跟踪检测
    • 作者：Broggi A.;Fascioli A.;
    • 刊名：IEEE Transactions on Intelligent Transportation Systems
    • 2002年第3期
    摘要：Describes the image processing techniques designed to localize the tracks of snowcats for the automation of transportation of goods and people during the Italian scientific missions in Antarctica. The final goal is to enable a snowcat to automatically follow the preceding one in a train-like fashion. A camera is used to acquire images of the scene; the image sequence is analyzed by a computer vision system which identifies the tracks and produces a high level description of the scene. This result is then forwarded to a further software module in charge of the control of the snowcat movement. A further optional representation, in which markers highlighting the tracks are superimposed onto the acquired image, is transmitted to a human supervisor located off board. This system has been tested in the Italian test site and was under testing in the South Pole during the early 2002 Italian scientific mission. The paper also briefly describes an alternative solution based on an evolutionary approach.
  • 8.

    【24hr】An algorithm for distinguishing the types of objects on the road using laser radar and vision

    包量

    机译 一种使用激光雷达和视觉识别道路上物体类型的算法
    摘要：Describes a method for distinguishing the types of forward objects detected on and alongside the road using a vehicle-mounted scanning laser radar (SLR) and a camera. This method can measure the distance to a preceding vehicle in the same lane as well as to other forward vehicles in adjacent lanes. Objects are detected on the basis of SLR digital signal data and are categorized as vehicles, delineators, and signs based on their motion and positions relative to white lane markers. The motions of detected objects are judged by the relationship between the path of the host vehicle and changes in the positions of the objects. The host vehicle's path is computed using steering maneuver data and the vehicle velocity. White lane markers are detected by an image processing technique. The proposed algorithm has been validated in an experiment conducted with a simulator. Data recorded at a driving speed of more than 40 km/h on Japanese expressways were used in the simulation. The types of objects detected on the road were successfully distinguished as expected.
  • 9.

    【24hr】Modeling and simulation for hybrid electric vehicles. I. Modeling

    包量

    机译 混合动力电动汽车的建模和仿真。一，造型
    摘要：A model for the hybrid electric vehicle (HEV) powertrain simulation has been constructed with a specific power control strategy for an electric-assisted HEV in parallel configuration. The HEV was built by the University of Tennessee, Knoxville. Experimental procedures and data analysis for characterizing power output from the battery and the auxiliary power unit (APU) are presented. The model is implemented based on the empirical formulation and power control scheme, a power control strategy by means of throttle position. It also incorporates regeneration and regenerative braking for battery capacity recovery. The model allows for real time evaluation of a wide range of parameters in vehicle operation as a HEV, a pure electric vehicle, or as a conventional vehicle.
  • 10.

    【24hr】Modeling and simulation for hybrid electric vehicles. II. Simulation

    包量

    机译 混合动力电动汽车的建模和仿真。二。模拟
    摘要：For pt.I see ibid., vol.3, no.4, p.235-43 (2002). Hybrid electric vehicle (HEV) simulation is conducted based on the model developed for a parallel HEV built in the University of Tennessee, Knoxville (UT-HEV). The HEV simulation is a parametric analysis of the power control schemes and vehicle performance. Major parameters are evaluated for the vehicle driven under the standard urban and highway driving schedules. The results indicate that current configuration of the UT-HEV NEON has superb capability for battery state of charge (SOC) recovery while meeting the velocity request of the given driving schedules. Recommendations are given from the simulation for optimal performance in light of the HEV power control, capability for SOC recovery through regeneration and regenerative braking, as well as velocity, acceleration and range performance.
  • 11.

    【24hr】Heuristic techniques for accelerating hierarchical routing on road networks

    包量

    机译 加速道路网络上分层路由的启发式技术
    摘要：The route computation module is one of the most important functional blocks in a dynamic route guidance system. Although various algorithms exist for finding the shortest path, their performance tends to deteriorate as the network size increases. We present an efficient hierarchical routing algorithm that finds a near-optimal route and evaluate it on a large city road network. Solutions provided by the hierarchical routing algorithm are compared with the optimal solutions to analyze and quantify the loss of accuracy. We propose a novel yet simple heuristic to substantially improve the performance of the hierarchical routing algorithm with acceptable loss of accuracy. A network pruning technique has been incorporated into the algorithm to reduce the search space and the correctness of the results is evaluated. The improved hierarchical routing algorithm that incorporates the heuristic techniques has been found to be over 50 times faster than a typical shortest path algorithm.
  • 12.

    【24hr】Freeway ramp metering: an overview

    包量

    机译 高速公路匝道计量：概述
    摘要：Recurrent and nonrecurrent congestion on freeways may be alleviated if today's "spontaneous" infrastructure utilization is replaced by an orderly, controllable operation via comprehensive application of ramp metering and freeway-to-freeway control, combined with powerful optimal control techniques. This paper first explains why ramp metering can lead to a dramatic amelioration of traffic conditions on freeways. An overview of ramp metering algorithms is provided next, ranging from early fixed-time approaches to traffic-responsive regulators and to modern sophisticated nonlinear optimal control schemes. Finally, a large-scale example demonstrates the high potential of advanced ramp metering approaches.
  • 13.

    【24hr】Adaptive control of a hybrid electric vehicle

    包量

    机译 混合动力电动汽车的自适应控制
    摘要：A decentralized adaptive control system (ACS) for a four motor-generator four-wheel drive hybrid electric vehicle (HEV) is designed and its ability to deal with unknown tire dynamics, changing road surfaces, and vehicle loading is evaluated. A system composed of four separate adaptive controllers is designed to control the vehicle's speed, steering, side slip, and energy management system. A nonlinear simulation model for the vehicle dynamics and its power train components is developed and used to evaluate the performance of the ACS, while the vehicle is simultaneously turning and accelerating or braking under varying loading and icing conditions.
  • 14.

    【24hr】Traffic flow modeling of large-scale motorway networks using the macroscopic modeling tool METANET

    包量

    机译 使用宏观建模工具METANET对大型高速公路网络的交通流进行建模
    摘要：This paper employs previously developed modeling, validation, and stimulation tools to address, for the first time, the realistic macroscopic simulation of a real large-scale motorway network. More specifically, the macroscopic simulator METANET, involving a second-order traffic flow model as well as network-relevant extensions, is utilized. A rigorous quantitative validation procedure is applied to individual network links, and subsequently a heuristic qualitative validation procedure is employed at a network level. The large-scale motorway network around Amsterdam, The Netherlands, is considered in this investigation. The main goal of the paper is to describe the application approach and procedures and to demonstrate the accuracy and usefulness of macroscopic modeling tools for large-scale motorway networks.
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