Vehicle Navigation and Information Systems Conference, 1991最新文献_第6页

Data fusion in pathfinder and TravTek pathfinder和TravTek的数据融合

Vehicle Navigation and Information Systems Conference, 1991 Pub Date : 1991-10-01 DOI: 10.4271/912736

Roy Sumner

引用次数: 23

Neural network approaches for lateral control of autonomous highway vehicles 自主公路车辆横向控制的神经网络方法

Vehicle Navigation and Information Systems Conference, 1991 Pub Date : 1991-10-01 DOI: 10.4271/912871

A. Kornhauser

{"title":"Neural network approaches for lateral control of autonomous highway vehicles","authors":"A. Kornhauser","doi":"10.4271/912871","DOIUrl":"https://doi.org/10.4271/912871","url":null,"abstract":"The research reported in this paper focuses on the automated steering aspects of intelligent highway vehicles. Proposed is a machine vision system for capturing driver views of the oncoming highway environment. The objective is to investigate various designs of artificial neural networks for processing the resulting images and generating acceptable steering commands for the vehicle. The research effort has involved the construction of a computer graphical simulation system, called the Road Machine, which is used as the experimental environment for analyzing, through simulation, alternative neural network approaches for controlling autonomous highway vehicles. The Road Machine serves as both the training environment and the experimental testing environment for the autonomous highway vehicle. It is composed of five (5) major modules: Highway design, Driver view simulation, Image processing, Neural network design and training, and Autonomous driving simulation. Two types of neural network control structures are under active research, Back-propagation and Adaptive Resonance. The Road Machine is written in C and operates on Silicon Graphics workstations using Unix and the SGI graphics language.","PeriodicalId":126255,"journal":{"name":"Vehicle Navigation and Information Systems Conference, 1991","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122684467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 17

Accessing the acceptability of IVHS: Some preliminary results 获取体外受精可接受性:一些初步结果

Vehicle Navigation and Information Systems Conference, 1991 Pub Date : 1991-10-01 DOI: 10.4271/912811

R. Marans, C. Yoakam

引用次数: 10

A dynamical system model for traffic assignment in networks 网络中流量分配的动态系统模型

Vehicle Navigation and Information Systems Conference, 1991 Pub Date : 1991-10-01 DOI: 10.4271/912817

S. Lafortune, R. Sengupta, D. Kaufman, R.L. Smith

引用次数: 8

A concept of IVHS in commercial vehicle operation: The HELP/Crescent program 商用车操作中的IVHS概念:HELP/Crescent计划

Vehicle Navigation and Information Systems Conference, 1991 Pub Date : 1991-10-01 DOI: 10.4271/912776

C. Walton

{"title":"A concept of IVHS in commercial vehicle operation: The HELP/Crescent program","authors":"C. Walton","doi":"10.4271/912776","DOIUrl":"https://doi.org/10.4271/912776","url":null,"abstract":"The HELP Program and Crescent Demonstration Project is a bi-national multi-jurisdictional cooperative research and demonstration project involving the public and private sectors in an application of advancing technologies in the creation of an integrated heavy vehicle management system with applications to both highway and vehicle systems. This initiative is a leading example of the Intelligent Vehicle Highway Systems (IVHS) in commercial vehicle operations (CVO). The selected technologies are being integrated into a heavy vehicle management system. These technologies include: (1) automatic vehicle identification(AVI), (2) weigh-in-motion (WIM), (3) automatic vehicle classification (AVC), (4) data communication networks and systems integration. The program, initiated approximately eight years ago, consists of three phases which include assessing the feasibility of the concept, technical studies involving laboratory and field tests, and, lastly, the demonstration phase. Perhaps the most significant activity of this project centers on the subject of institutional arrangements associated with the integration of emerging technologies with current operational policies and practices, within both government and industry sectors. The demonstration element of the program, referred to as the Crescent Demonstration Project, began in 1991 and involves six U.S. states and one Canadian province. The project will be phased into a full scale operation over the next three years. It is estimated that the cost of this program to date is approximately $20 million shared by both industry and government in testing this landmark program. This paper provides an overview of the program and the components of the implementation plan.","PeriodicalId":126255,"journal":{"name":"Vehicle Navigation and Information Systems Conference, 1991","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117096235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Design and validation of headup displays for navigation in IVHS IVHS导航平视显示器的设计与验证

Vehicle Navigation and Information Systems Conference, 1991 Pub Date : 1991-10-01 DOI: 10.4271/912795

S. Shekhar, M. Coyle, M. Shargal, J.J. Kozak, P. Hancock

引用次数: 14

Japanese projects on automobile information and communication systems—Things aimed at and obtained in 20 years' experiences 日本在汽车信息通信系统项目上的目标和收获是20年的经验

Vehicle Navigation and Information Systems Conference, 1991 Pub Date : 1991-10-01 DOI: 10.4271/912757

S. Takaba

引用次数: 6

Federal radionavigation policy and the land transportation user 联邦无线电导航政策和陆地运输用户

Vehicle Navigation and Information Systems Conference, 1991 Pub Date : 1991-10-01 DOI: 10.4271/912806

D. L. Olsen

{"title":"Federal radionavigation policy and the land transportation user","authors":"D. L. Olsen","doi":"10.4271/912806","DOIUrl":"https://doi.org/10.4271/912806","url":null,"abstract":"Intelligent Vehicle/Highway Systems (IVHS) have been developed using dead-reckoning map-matching navigators, but increasing consideration is being given to the use of radionavigation systems such as Loran-C and the Global Positioning System (GPS). The use of GPS receivers in IVHS applications is becoming more attractive as the system nears its expected 1993 operational status and as the cost of receivers continues to drop. Other terrestrial applications are beyond the development stage, particularly in the area of automatic vehicle location and monitoring where the use of radionavigation systems has experienced tremendous growth. The federal radionavigation planning process could have significant impact upon IVHS development. The Department of Transportation's Navigation Council formulates radionavigation system policy recommendations in concert with the Department of Defense, and the resulting policy is published in biennial editions of the Federal Radionavigation Plan (FRP). Increasing emphasis is being given in the FRP to terrestrial applications, and the DOT Navigation Council is being expanded to afford full representation to the modal administrations having responsibility for land transportation.","PeriodicalId":126255,"journal":{"name":"Vehicle Navigation and Information Systems Conference, 1991","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125727735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

If information technology could save lives, improve productivity, help clean up the environment, and lower the budget deficit, would we use it? should we use it? 如果信息技术可以拯救生命，提高生产力，帮助清洁环境，降低预算赤字，我们会使用它吗?我们应该使用它吗?

Vehicle Navigation and Information Systems Conference, 1991 Pub Date : 1991-10-01 DOI: 10.4271/912749

J.R. Woods

引用次数: 0

AVI research for commercial vehicle operations 商用车运营AVI研究

Vehicle Navigation and Information Systems Conference, 1991 Pub Date : 1991-10-01 DOI: 10.4271/912740

P. Davies, C. Hill, J. Siviter

{"title":"AVI research for commercial vehicle operations","authors":"P. Davies, C. Hill, J. Siviter","doi":"10.4271/912740","DOIUrl":"https://doi.org/10.4271/912740","url":null,"abstract":"This paper focuses on current research efforts in the field of automatic vehicle identification (AVI) within the Heavy Vehicle Electronic License Plate (HELP) program. HELP is developing a commercial vehicle monitoring and management system integrating AVl with weigh-in-motion, automatic vehicle classification and a computerized communications network. A primary emphasis to date in the HELP program has been technology research and development, with AVI being central to this effort. Initial research, undertaken by CRC, has led to the development of a radio frequency based, open specification for an AVI system representing the technological state-of-the-art. However, in parallel with the HELP AVI research, the American Trucking Association (ATA) has recently adopted its own radio frequency identification (RFID) equipment standard. A new research effort is therefore being performed by CRC to develop compatible AVI standards meeting the requirements of both the ATA and HELP. A second additional area of research, currently being undertaken by CRC, is the development of a beacon-based AVI system, based on the existing HELP AVI specification. This AVI beacon will be placed on a state line and will broadcast a location, date and time marker message to a truck's onboard computer (OBC). This is just one in a broad range of possible IVHS applications capable of utilizing such a roadside-to-vehicle communications channel. This paper describes the earlier HELP AVI research efforts as a background to the two current AVI initiatives. Each of these initiatives is also discussed including project methodologies, results so far and expected results.","PeriodicalId":126255,"journal":{"name":"Vehicle Navigation and Information Systems Conference, 1991","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132651558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4