查询词典 traffic control

The paper analyses this problem,firstly clarifies telephone traffic is the telecommunication's product and traffic marketing is the very important job,then predicts traffic's increase will happen snowslide and foretells eight changeovers,finally put forward customer marketing should turn to traffic marketing and traffic marketing will turn to information marketing .

本文围绕这一问题展开讨论，首先澄清话务量才是电信产品，明确了话务营销是电信企业的重要营销工作，然后预言了话务量增长的雪崩现象和电信的8种转变，最终提出目前的用户营销工作应向话务营销转变，进而话务营销也必定要向信息营销转变的趋势。

City traffic navar is that the traffic data monitors , the traffic signal lamp controls and the traffic-relieving computer synthesizes management system be used for city , it is that modern city traffic monitors the most important ingredient of chain of command middle.

城市交通控制系统是用于城市交通数据监测、交通信号灯控制与交通疏导的计算机综合管理系统，它是现代城市交通监控指挥系统中最重要的组成部分。

The major achievement of this paper is: Based on characteristics of the traffic data distribution, execute pattern recognition operations on traffic condition on two dimensions by clustering, then use BP neural network to describe and forecast traffic flow aiming at each pattern. Making use of classic flow-occupancy inverse "V" model, implement polynomial fitting using least-squares algorithm and statistics method on flow curves to detect outliers which are proved to be not accord with practice through the actual implement, then use the moving average model to recorrect the outliers and absent. Make correlation analysis on muti-direction flow queues of the intersection and ones of upriver intersections, choose flow queue with high correlation as assistant one to improve the error tolerance of the prediction system, at the same time we can use the method to give an estimation of flow in intersection with out sensors. We design and implement an SOA(Service-Oriented Architecture)-based UTDD(urban traffic data mining development) with high expansibility and performance, which implement unified management and call of the data-mining application though defining a XML-based description of data-mining process and a common interface to call data-mining process, finally we build traffic flow prediction application model on UTDD.

根据交通流量数据分布的特征，提出基于k-means的二次聚类方法，对交通流量在流量大小和时间上进行模式划分，进而对各个交通流模式进行基于BP神经网络的描述和预测，从而提高模型对流量预测的精度； 2）根据流量/时间占有率倒&V&字形曲线分布模型，提出基于最小二乘法的三次多项式曲线拟合和统计方法的异常检测方法，实际应用表明该方法能够有效识别异常数据，然后根据移动平均算法对异常数据进行修正； 3）基于序列相关性分析，分别对预测方向的交通流量数据序列、上游路口相关序列以及预测路口其它各个方向上的交通流量序列进行分析，选择相似性流量序列，作为辅助序列提供其他没有检测器路口的流量估计； 4）设计和实现了基于SOA（Service-Oriented Achitecture）的高性能、可扩展的智能交通数据挖掘系统UTDD，该系统通过定义基于XML的数据挖掘过程描述和通用的过程模型接口，实现数据挖掘应用的统一管理和调用，最后在UTDD上建立了基于路口流量预测的应用模型。

ABSTRACT: According to the research system of urban traffic planning and construction, and the requirement of consistency with urban planning, the paper proposes three-class traffic zone system, including macroscopic traffic zone, traffic infrastructure zone and traffic operation and management zone.

按照城市交通规划建设体系以及与城市规划一致性要求，文章提出宏观及交通分区、交通设施分区与运行管理分区三级及交通分区体系。

One, the integral sex action of system of integrated traffic information is told from technical level, system of integrated traffic information is wait to carry a system to undertake transforming to traditional traffic through using technology of IT, communication, control technology, the modern science and technology that uses these technical delegates undertakes control and administrative to traffic system.

一、综合交通信息系统的整体性作用从技术层面上来讲，综合交通信息系统是通过采用信息技术、通信技术、控制技术等对传统交通运输系统进行改造，并运用这些技术代表的现代科技对交通系统进行控制和治理。

Synthetically considering these characteristics, the method of freeway management and control are presented according to four aspects: system objective orientation and concept design, system demand and requirement analysis, system data management and network structure, traffic control and accident detecting theory as well as its application. Function and structure of system are delimitated from the point view of integration. Construction and function demand of subsystem are analyzed and basic implement projects are presented. In this thesis, system data flow and management method and target which based on system network topology structure and equipment demand are described. Traffic modeling ideology and the process of making dynamic model as well as accident detecting program are presented with centralized and distributed traffic control theory in detail, then freeway ramp control theory which based on predictive model and its theoretic pattern are explored. Finally, based on the object oriented programming, program of accident detecting and checking on freeway is developed by using visual C++ as tool.

论文综合考虑高速公路交通管理系统的上述特征，分别从系统目标定位及概念设计、系统需求分析、系统数据管理及网络结构分析、交通控制与交通事件检测理论与应用四个层面，对高速公路交通管理与控制问题进行了系统阐述，界定了系统的功能及各功能的实现要求，并从系统集成角度划分了系统的结构；分析了各子系统的信息、功能、建设等方面的需求，给出了基本实施方案要求；对系统数据流程进行了描述和梳理，提出了数据管理的方法、目标及措施，分析、设计了系统网络拓扑结构及设备需求；阐述了交通模型的建模思想和动态交通模型的建立过程，对集中式和分散式全局交通控制理论进行了详细的分析，提出了基于预测的高速公路匝道控制理论，并对理论模式及相关的问题进行了研究，分析了高速公路事件检测系统，并采用面向对象的编程思想，以Visual C++为编写工具，开发了高速公路事件检测系统分析软件。

The book is divided into 10 chapters, including discrete and continuous system of PID control system, commonly used digital PID control, Expert PID and fuzzy PID control, neural PID control, genetic algorithm PID control, Multivariable decoupling PID control, several advanced PID control, gray PID control, PID control servo system, PID control in real time, ea

全书共分十章，包括连续系统和离散系统的 PID 控制，常用数字 PID 控制，专家 PID和模糊 PID 控制，神经 PID 控制，遗传算法 PID 控制，多变量解耦 PID 控制，几种先进的PID 控制，灰色 PID 控制，伺服系统 PID 控制，PID 实时控制，每种方法都通过 MATLAB 仿真程序进行了说明。

Related with the traffic status of our country, the content of this paper is combined with practical application. The paper studies how to investigate traffic status in urban signal intersection, By field observing and videography, this paper get the geometry formal、traffic control and traffic running state of Xingtan road and Wenhuiyuan north road intersection, which can be support database for model building and model testing. On currently basic design principles of signal phase, through deep study of signal phase and canalization design.

本文结合我国目前的交通状况，着力将所要研究的内容与实际应用结合起来，研究了城市信号交叉口交通调查的方法，通过实地观测和摄像的手段获得杏坛路与文慧园北路交叉路口的几何形式、交通管理和交通运行状况的信息，以此作为建立模型和验证模型的支持数据，并在现有信号相位设计基本原则的基础上，深入研究了混合通行情况下的相位方案及渠化设计。

This paper presents a virtual electronic technology development, traffic signal design, Traffic lights and the design method; Comprehensive analysis and comparison of the advantages and disadvantages of the design method, The topic of virtual electronic technology used to achieve the main streets and secondary streets crossroads of the traffic signal controller design electronic workbench to the traffic signal control circuit simulation.

本文首先简要介绍虚拟电子技术的发展、交通信号灯设计的作用、以及交通信号灯的各种设计方法；综合分析比较各种设计方法的优缺点，本课题采用虚拟电子技术实现主要街道和次要街道十字路口的交通灯控制器的设计，采用电子工作台EWB对交通信号灯控制电路进行仿真。

In recently 20 years, the urban traffic which including justle and accident become worsen and worsen, so designing the Intelligent Traffic control system which adapt to national traffic requirement and improving it's capability in reliability and real time, will bring important effect not only to all of the traffic system but also to people's life and social continual development.

近20年来，城市交通拥堵、交通事故等一系列交通问题日益严峻，建立适合我国国内交通需求的智能交通控制系统，更好的提高其实时性和可靠性，不仅对整个交通运输系统、而且对人们的生活模式和质量、对社会的可持续发展，都将产生重要影响。

Cable dampener cannot be rolled up but must be hung over the cable.

缆帆不能被卷起，必须保证处于展开状态

"This skylark is a present from my master," he says.

"这只云雀是我主人献上的礼物。"他说。