公开(公告)号：US20110127090A1

公开(公告)日：2011-06-02

申请号：US12956891

申请日：2010-11-30

申请人： Krishna Vijayaraghavan ,  Sean Pruden ,  Rajesh Rajamani

发明人： Krishna Vijayaraghavan ,  Sean Pruden ,  Rajesh Rajamani

IPC分类号： G01G19/03 ,  G01G19/00

CPC分类号： G01G19/03

摘要： In general, the disclosure is directed to techniques for sensing the weight of a load object passing over a measurement surface. In some examples, a weigh-in motion (WIM) sensor is provided that includes a first beam that exhibits a linear elastance function, and a second beam that exhibits a nonlinear elastance function. In additional examples, the WIM sensor may include a measurement circuit configured to generate information corresponding to a weight of the load object, a wireless transmission circuit configured to transmit the information to a receiving station, and an energy harvesting circuit configured to harvest an amount of energy from vehicle vibrations. The energy harvested may be sufficient to power the wireless transmission circuit. In further examples, a WIM system is provided that includes a sequence of sensors. Information from the sequence of sensors may be used to remove noise in the raw data due to vehicle vibration.

摘要翻译： 通常，本公开涉及用于感测通过测量表面的负载物体的重量的技术。 在一些示例中，提供了一种称重运动（WIM）传感器，其包括呈现线性弹性功能的第一光束和呈现非线性弹性功能的第二光束。 在另外的示例中，WIM传感器可以包括测量电路，该测量电路被配置为产生对应于负载对象的权重的信息，被配置为将信息发送到接收站的无线传输电路，以及能够收集一定量的 来自车辆振动的能量。 所收集的能量可能足以为无线传输电路供电。 在另外的示例中，提供了包括一系列传感器的WIM系统。 来自传感器序列的信息可用于消除由于车辆振动引起的原始数据中的噪声。