An Approach of Signalized Intersection Delay Calculation Based on Floating Vehicles Data Survey Method 基于浮动车数据调查方法的交叉口延误计算
A Spatial Clustering Algorithm Based on Intersection Relation for GML Data Connected or interwoven series 一种基于相交关系的GML空间聚类算法
Methods of Intersection Dynamic Subsections Based on Floating Car Data 基于浮动车数据的交叉口范围动态划分方法
Business happens at the intersection of people and data. 有业务的地方,就有人与数据的交流。
Discrepancies between measurements on different tracks may exist at the intersection because airborne gravity data are unavoidably affected by different kinds of error source. 由于受到各种误差源的干扰和影响,造成了交叉点上重力观测值不相同,即存在交叉点重力观测值不符值。
This paper study capacity of typical intersection and design software, and based on the project of "Research on Signalized Intersection Capacity Data Collection Technology". 本论文以国家“十五”攻关项目“信号交叉口通行能力数据采集技术研究”为依托,对典型信号交叉口的通行能力进行了分析,并开发了软件系统。
This paper expounds the algorithms of curves, surfaces, equidistant surfaces, surface intersection and surface trimming related to the NC machining data conversion, it emphatically discusses the methods and characteristics of representing curves and surfaces by using the rational B-spline. 本文论述了与数控加工数据转换技术有关的曲线、曲面、等距曲面、曲面求交和曲面修剪的算法。重点对有理B样条表示曲线曲面的方法及特点进行了探讨。
As the complex phenomenon will occur caused by the intersection or superposition of contours of different data, more factors should be considered in filling color of the contour field. 因为在同一区域不同数据的等值线可能会出现交叉、重叠等复杂情况,所以充填叠合以后等值线之间的颜色的方法也相应的要考虑更多的因素。
The experiment proves that the temporal requirement in cadastral management can be satisfied when using temporal topological relation described with 4-intersection to organize data in cadastral management. 实验证明在地籍管理中引用四元组描述的时态拓扑关系来组织数据可以满足地籍管理中的时态需求。
The paper bring forward two way to improve system efficiency, including using "region intersection matrix" to improve data routing efficiency and using the result of "attribute scope advisory" to improve the efficiency of reflecting data to federate. 论文提出以区域相交矩阵来提高数据发送选路效率和以实例属性范围建议结果来提高数据向联邦成员提交的效率两种方法来提高系统的效率。
The software and hardware design of the loop vehicle detector based on DSP are implemented in this paper, which is on basis of the completion of the fuzzy controller at isolated intersection utilizing the data acquired by the detector. 本文设计了一种基于DSP的环形线圈车辆检测器,并以此车检器采集的数据为基础,设计了基于车辆排队长度的单交叉口模糊控制器。
A fast, accurate and feasible collision detection algorithm is important for an application. In this paper, a new planar simple polygon intersection algorithm, based on 2D axis-aligned bounding rectangle data structure, is presented for the polygons subjected to simple and unreformed movement. 为了提高多边形碰撞检测的效率,针对简单形式刚性运动的多边形对象,提出了一种基于二维轴向矩形包围盒结构的平面简单多边形碰撞检测算法。
A remote long-distance railway intersection inspecting wireless system based on ARM and embedded system is presented in the paper, which uses the wireless network of CDMA for railway intersection inspecting data transmission and case getting. 本文提出了一种以ARM和嵌入式技术为基础,采用CDMA无线网络实现远程道口数据的实时传输,以及时了解道口状况的无线铁路视频监控系统。
Putting forward the change statistic method based on acreage, and counting the varieties of vector map data by using polygon intersection of vector data and changed pixel of raster data. 提出基于面积的变化统计方法,分别利用矢量数据的多边形交集和栅格数据的变化像素来统计地图矢量数据的变化。
This paper researches on highway intersection and starts from the analysis of traffic conflict; the data is collected by the traffic conflict investigation and traffic flow investigation; 本文以公路平面交叉口为研究对象,从交通冲突分析着手,通过交通冲突调查以及交通流调查,进行了数据收集;
Comparision of the Height Accuracy Obtained from EFP Bundle Adjustment and Forward Intersection Using Simulation Space Photogrammetric Data 利用模拟卫星摄影测量数据按EFP法光束法平差与直接前方交会计算高程的精度比较
Ensemble data assimilation is at the intersection of ensemble forecasting methodologies and relatively independently developed data assimilation based on the theory of statistical estimation. 集合资料同化是依赖于统计理论,集合预报方法和资料同化方法的有机结合。
Complex patterns of intersection of linear with power function curvilinear data point arrays are observed on the ratio-ratio correlation plots of trace elements in the Aral granite, Altay Mountains, northern Xinjiang. 新疆阿拉尔花岗岩的微量元素比值相关图显示了线性样点列与幂函数曲线形式的样点列相交的复杂图型。
A DTM using triangular grid model is constructed, which can be densified automatically and used in urban street intersection design, especially when the initiative data are less. 利用三角网线框模型建立了一个数字地面模型,这一模型可进行三角网自动加密,比较适合城市道路平面交叉口。
So we can treat crosswalk as two-phase intersection. The simulation of the two crosswalks with some field data from Peace Building in Taiping North Road and Zhujiang Road intersection has a satisfactory result. 把人行横道看成简单的两相位的交叉口,最后以太平北路和平大厦-珠江路路段调查的部分数据对两个路口进行仿真,效果良好。
And then the headway variation law with the vehicle position in a queue was obtained. Based on that, the revised capacity model of signal control intersection was proposed and model parameters was determined through field test data. 2. 再分析车头时距随排队位置的变化规律,得到绿灯期间车辆驶离停车线的变化情况,在此基础上提出信号控制交叉口通行能力的计算模型,并用实测数据来标定模型的参数。
Results on eight data sets show that it should choose different rough set model to construct knowledge for different data sets, rough set model with set approximation and intersection neighborhood can adapt for most of the gene microarray data. 在8个数据集上的实验结果表明,针对不同的数据集应该选择不同的粗糙集模型来构建知识,基于集合近似及相交邻域构建的粗糙集模型可适应大多数基因微阵列数据的基因选择。
Through the calculation of the intersection after cutting, it will change the data structure and topology of soft tissue. Finally, it will map back to the visual model. 切割发生后,通过对交点进行计算,然后,通过改变几何模型相关的数据结构来完成软组织拓扑结构的改变,通过映射反馈到可视模型上。
Through collecting and deal with intersection field images to obtain experiment data, then analyzing the reason of error and looking for the way to improve this detection. Experience indicates this system keeps certain value on research and application. 通过采集和处理交叉口现场图像,获取实验数据,分析误差产生的原因并对检测方法进行改进,实验表明该系统具有一定的研究和应用价值。
By using the location data vector of the fingerprint characteristics endpoint as the topological structure transform object and the intersection location data vector of the fingerprint characteristics as the encryption ( decryption) key, we can realize topological transform encryption. 设计以指纹特征端点位置数据向量作为拓扑结构变换对象,以指纹特征交叉点位置数据向量作为加(解)密密钥,进行拓扑变换加密。
Besides, this clipping algorithm adopts the single circular linked list to represent the polygon and intersection points, which reduces the complexity of the data structure. 该算法还采用了较为简单的单循环链表来存储多边形和交点,降低了数据结构的复杂性。
Vehicle when turning once after intersection, then follow-up GPS data points to the path of projection parallelogram projection. 车辆一旦经过路口时发生拐弯,则后续GPS数据点到道路的投影采用平行四边形投影。
Here we combine covariance intersection ( CI) algorithm with probability data association ( PDA) filter, and realize the application of CI algorithm in distributed system in single target tracking with clutter. 在此基础之上结合CI算法和概率数据关联(PDA)算法,建立了分布式系统在杂波环境下的单目标跟踪模型,实现了CI算法在分布式系统中的应用。
Because the task partitioning follows the non intersection principle of data partitioning, the direct merging of sub task execution results are equivalent to those without task partitioning. 由于在任务分解时遵循了数据分解的不相交原则,所以执行结果的直接合并与任务分解前的执行结果是等价的。
In this study, the author combined the standard k-ε turbulence model and component transport equation to research the intersection and compared with the wind tunnel test data to verify the correctness of the numerical simulation method. 利用标准k-ε湍流模型和组分输运方程相结合的数值模拟方法研究了交叉口内污染物浓度的分布情况,并与风洞实验数据进行对比,验证了数值模拟方法的正确性。