Shandong zouping huasheng biaomianjishu co . ltd is near coastal city , qingdao , in the east , near , near key spring city , jinan , located to the north of hte zhoucun toll station of the no . 309 country road , heace convenient communication 山东邹平华升表面技术有限公司，东邻海滨城市青岛，西邻泉城济南，座落于309国道周村收费站北侧，交通便利。
5 . the roadway toll collection subsystem and the integrated management subsystem are implemented . also , the system analysis , program design and debugging of the components on the business layer are presented 5 .实现了车道收费控制子系统、综合管理子系统和中间层服务器程序的系统分析、程序设计和调试测试工作，并在沪州大纳公路收费站安装运行。
From the route that the vehicle that each 庄 of d export to go to is to the sung 郎 road direct forward usually 屯 toll station 调 the head go to out the city direction , and export to drive to the sung 郎 road from the each 庄 of d again to drive 自丁各庄出口去往宋郎路的车辆可直接向前经常屯收费站调头到出京方向，再由丁各庄出口驶往宋郎路的路线行驶。
On the basis of analysising the history of research on freeway toll - gate capacity in the world , in this paper , the traffic flow characters of freeway toll - gate were reasoningly analyzed in beijing , and then , the methods and steps were fixed 本研究在分析国内外关于高速公路收费站通行能力研究的基础上，理性分析了北京市高速公路收费站的交通流特性，确定了研究所采用的研究方法和研究步骤。
Finally we use bp neural network to recognize the characters . testing more than 200 representative vehicle license plates , we can achieve the accuracy of 99 % in unifying the background color , 96 % in segmentation and 90 % in recognition 我们从某高速公路收费站实地拍摄的上千幅照片中选取有代表性的200多幅作为实验样本数据，以99的正确率实现了背景色的统一， 96的分割正确率和90的字符识别率。
But the automatic level of toll - collection on the highways remains comparatively underdevelopment by contrast with the construction of highways , which causes the situation of heavy traffic more and more serious , and that the driving speed on the highway has been greatly reduced 但是,与高速公路建设相比,公路收费的自动化水平却相对滞后,造成收费站前车辆拥挤,交通堵塞现象日趋严重,大大降低了高速公路的通行速度。
In the system , a three _ tier distributed structure based on microsoft distributed component object model ( dcom ) is used . using omt and the component development method proposed above , the system is analyzed and developed , and some reuse components in the field are developed 对收费站软件系统利用对象建模技术进行了建模分析和设计，运用前面提出的构件开发方法，开发设计了一批用于公路收费系统软件开发的可复用构件。
When a single toll road is built by different transportation departments or run by different road management enterprises , toll gates of which should be built in a unified and rational manner according to the principle of " unified collection and proportionate sharing of toll fees " 同一收费公路由不同的交通主管部门组织建设或者由不同的公路经营企业经营的，应当按照“统一收费、按比例分成”的原则，统筹规划，合理设置收费站。
The research outcome of this paper mainly includes : firstly , based on the character of toll collection system , the conceptual project of how to integrate etc technology into the existed manual combined computer toll collection system has been designed . and this offers a feasible thought for the management departments of toll expressway and bridge in china . since they are facing a problem that introducing etc to enhance efficiency without interfere the normal operation , thus solving the " bottleneck " in the toll station 本论文的研究成果主要体现在：第一，本文首先从收费系统本身的特点出发，提出了将etc收费技术引入现有人工与计算机结合管理的收费系统的概念性设计，为国内收费路桥的管理部门正面临的如何在不影响日常运营的前提下，顺利引入etc收费技术捉高工作效率，解决收费站瓶颈问题，提供了可行的思路。
In the plate region of a vehicle image , the gray value varies frequently in cross - direction , so we define a parameter " . cross variance " to describe it . we also calculate other parameters to approximately locate the plate , they are the space length between two chars , the thickness of stroke , the peak and trough of gray value , the ratio of width and length , etc . at last , we exactly locate the plate by the theory of mathematical morphology 该方法根据图像车牌区域横向灰度值变化频率比较大这一特征提出了横向方差参数，并结合车牌的字符间距、笔划粗细、灰度峰谷值、长宽比值等特征粗定位车牌，在车牌的精确定位中利用了数学形态学的方法。我们从某高速公路收费站实地拍摄的照片中选取了1000多幅作为实验样本数据。
