面向主动交通安全的城市车辆在线位置服务技术

2013 Executive Report: Urban Vehicle Online LBS Technology(Active Traffic Safety oriented)

《面向主动交通安全的城市车辆在线位置服务技术》课题旨在解决我国道路交通安全矛盾的一个主要原因,使在途驾驶人员在第一时间获得前方的道路交通及环境信息,从而能在事前做出风险规避行为。本课题采用无缝定位技术和在线位置服务技术,获取路网上的动态位置及综合交通状态信息,结合道路基础地理空间信息,搭建基于车路设施协同作用的主动交通安全管理服务平台,在上海浦东新区实现20万以上用户的技术示范,解决动态交通安全服务的若干关键技术。主要研究内容包括:(1)城市车辆主动交通安全模型和综合状态信息集成研究;(2)面向主动交通安全的路域车辆集成定位技术;(3)交通安全的一体化时空数据建库与快速采集更新技术;(4)面向主动交通安全的LBS车载平台研制;(5)城市车辆在线位置服务技术综合示范应用根据2013年度的相关任务安排,5个子课题的研究分别由同济大学、武汉大学、上海交通大学、国家测绘地理信息局第一大地测量队、中国电子科技集团公司第54研究所和广东长宝信息科技有限公司承担完成,总体进展情况良好。该年度已完成得对主动交通安全模型的国内外研究态势、存在问题和研究方向的研究和探讨,并构建了事故多发与隐患路段预警模型以及基于LBS和路侧交通信息采集的实时交通冲突风险评估模型框架,将道路信息、交通状况、车辆实时行驶状况、天气情况等信息融入评估预警模型中,保证了模型的可靠性和实时性。采用UWB技术研发隧道室内定位系统,试验结果表明该技术在室内复杂区域内绝大多数区域达到分米级别的精度,足够支持隧道室内定位系统。同时,利用arcengine软件以及C#语言进行隧道室内定位系统的开发。在交通安全一体化时空数据采集、建库方面,结合现有技术和产品,自行开发了移动数据采集系统,已完成该系统的结构设计、静态道路底图数据分类和符号库设计。车载互动式终端系统构建和标准化制定已初步完成,构建了Woodpecker高可用性保障中间件,实现了一种基于呼叫中心的智能、自助车联网服务。已基本完成高精度定位终端系统的硬件系统以及相关驱动设计。在综合示范应用方面,该年度选择10个示范路口作为中期示范路口,并已采集道路的相关信息和点云数据,与浦东交警合作开发交通事件共享系统,供后期综合示范之用。

＂Urban vehicle LBS technology （Active traffic safety oriented）＂ helps drivers to get the latest traffic and environment information and drivers can take risk--averse action in advance. This issue uses seamless location technology and online service technology to obtain dynamic position and integrate traffic information. Combined with geo--spatial information of road infrastructure, a CVIS--based active traffic safety management platform would be built. More than 200,000 users in Pudong New District would be included in technology demonstration to improve some key technologies. The main contents include1（l）Urban vehicle active safety model and comprehensive status information integration research;（2）lntegrate vehicle location technology （Active road traffic safety oriented） ;（3） Spatial and temporal traffic safety database and rapid data acquisition and update technology research ;（4） LBS--based vehicle platform （Active traffic safety oriented） research; （5）Urban vehicle online LBS demonstration and application. Five sub--topics were undertake respectively by Tongji University, Wuhan University, Shanghai Jiaotong University, National Mapping Geographic Information Bureau （First Geodetic Survey Team）, CETC54 and Guangdong Changbao Information Technology Co., Ltd. In this year, a road accident--prone warning model was built and the framework of real--time traffic conflict risk assessment model was established based on LBS and road side equipment. In tunnel indoor positioning system, UWB achieved decimeter level accuracy within the most complex interior regions, which was sufficient to support the system. A new mobile data acquisition system was developed for spatial and temporal traffic safety data collection and the structural design of the system has been completed. Data classification and symbol library for static road base map have been done. The standardization of vehicle--mounted interactive terminal system has been partly completed. Woodpecker high availability middleware was constructed. An intelligent call center based self vehicle networking service was implemented. The hardware systems and related drive design of high precision positioning terminal system has been basically completed. For the comprehensive demonstration application, 10 intersections were selected and relevant information and point cloud data of them have been collected. In cooperation with Pudong traffic police, a traffic incident sharing system was developed for future demonstration.