高速公路网语音数字定位标识的编码设计  

Video digital coding design for highway network location and identification

作　　者：孙大跃[1] 

机构地区：[1]长安大学信息工程学院,陕西西安710064

出　　处：《长安大学学报（自然科学版）》2014年第5期123-128,共6页Journal of Chang’an University(Natural Science Edition)

基　　金：科技部科技型中小企业技术创新基金项目(09C26226115677);科技创新支撑计划项目(CXY1011(2))

摘　　要：针对高速公路客服呼叫和紧急救援时所面临的路网用户定位模糊问题,建立了以道路使用者移动呼叫为主的高速公路网呼救系统模型和紧急工作流程,设计了一种包含道路、桩号和方向3大要素的路网精细化语音数字编码(VDC)方案和规则,并使用传输校验位对编码的传输错误和省界处的错误呼叫进行自动校验,方便了道路使用者对自己所处位置的精确描述。研究结果表明:精细化的VDC编码设计方案具有较高的检错性能,检出率值非常接近95%,该方案使得道路管理人员能够尽快获取精确的呼救定位,从而指引管理部门快速反应,提高应急救援系统的响应实效。In order to solve network user positioning fuzzy problems in highway customer service calls and emergency rescue,this paper established highway network distress system model and workflow based on mobile calls of road users,designed a kind of road network fine voice digital coding（VDC）scheme and rule which contains three major elements of road,stake number and direction,and used the transmission parity bit to check the coding transmission errors and wrong calls at provincial boundaries automatically,which facilitate road usersprecise description of their location.The results show that refined VDC scheme possesses better property of automatic checksum and the check result is chose to 95%.It can make road managers obtain precise positioning of call for help as soon as possible,thus guiding the rapid response of administrative department and improving the response effectiveness of emergency rescue system.4figs,11 refs.

关 键 词：交通信息 高速公路网 数字定位 编码设计 精细化编码 自动校验 

分 类 号：U491[交通运输工程—交通运输规划与管理]