【作者】 侯甲童；

【导师】 王翥；

【作者基本信息】 哈尔滨工业大学 ， 控制科学与工程， 2009， 硕士

【摘要】 随着我国国民经济的迅速发展,我国的交通事业也取得了巨大的进步,公路里程在不断的增加,但不容忽视的是越来越多的超限车辆对公路和桥梁造成了极大的破坏,动态称重是解决车辆超限超载,快速称重的有效手段。现有的动态称重多采用宽幅、单个传感器来完成对于行驶中车辆的轴重获取,进而达到判定是否超载超限的目的。这种方法有很大的弊端,其中最大的问题就是在各种干扰下,测量的精度存在不足。为了克服种种弊端,拟采用多个窄幅传感器,合理布局,达到更高精度的称重目的。本文主要的研究工作是对动态称重传感器布局的研究,以及数据融合理论对于布局的验证,全文组织如下:1介绍了超限运输对公路路面,交通安全,运输市场,周边环境,国民经济造成的危害,分析了汽车动态称重系统的组成,并论述了各个不同称重传感器的测量原理及压电传感器的应用目的。对动态称重信号进行分析,并对其中的动态载荷进行归纳,得到利于多传感器布局的模型;2研究了称重传感器布局的算法,对于时序步进法和数据融合在多传感器布局的应用进行研究。在应用数据融合算法进行布局时,对于不同的布局进行验证,对于运算结果精度的验证采用改进的参数估计法来获取,针对不同的布局,对得到真实轴重的可行性进行对比。更多还原

【Abstract】 Chinese transport has made great progress with the rapid development of national economy, the mileage of highway increasing constantly, but the breakage of more and more overload vehicles on the roads and bridges can not be ignored. WIM(weigh-in-motion) is the effective means which can solve overloading and transfinite of vehicles, and gain the weight rapidly. The width, single sensor is used in the existing WIM to gain the axle load of the moving vehicle, and then reach the purpose of determine whether the vehicle overloading and transfinite. There are some serious shortcomings of this method, and the biggest problem is the lack of precision in measurement under interference. In order to overcome the drawbacks, we adopted more than one narrow range of sensors and distribute rationally, to achieve high-precision weighing.In this paper, the research work is that the layout of the WIM sensors, as well as the data fusion theory in the layout verification, the full text is organized as follows:1 The harm of the transfinite transport are done to the road surface, traffic safety, transport markets, the surrounding environment, and the national economy. The constitute of the vehicle WIM is analyzed, then the measuring principle of different weighing sensor and the purpose of piezoelectric sensor application are discussed. The WIM signal is analyzed, and the dynamic load of which is summarized and then gain the model which in favor of the sensor layout;2 The algorithm of weighing sensor layout is studied, the application of the timing stepping and data fusion in the layout of multi-sensor are researched. In the application of data fusion algorithm for the layout, the results’accuracy of the calculations is verified by the Parameter estimation which is improved to obtain the verifying of the different layout, for different layouts, the feasibility is contrasted after got the real axle load.更多还原