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    • 1. 发明申请
    • SYSTEM AND METHOD FOR DETECTING POSITION OF UNDERWATER VEHICLE
    • 用于检测水下位置的系统和方法
    • US20100226541A1
    • 2010-09-09
    • US12707091
    • 2010-02-17
    • Ryosuke KOBAYASHISatoshi OKADAMasahiro TOOMAYutaka KOMETANIYosuke TAKATORIMitsuru ODAKURAKojirou KODAIRA
    • Ryosuke KOBAYASHISatoshi OKADAMasahiro TOOMAYutaka KOMETANIYosuke TAKATORIMitsuru ODAKURAKojirou KODAIRA
    • G06T7/00G01C3/08
    • G21C17/013G06T7/77G06T2207/30164G06T2207/30244G06T2207/30252
    • An object of the invention is to provide a system for detecting the position of an underwater vehicle that enables an improvement in the accuracy of detecting the position of the underwater vehicle.The position detection system comprises: a pressure sensor 18 that detects the vertical position of an underwater vehicle 9; a range sensor unit 23 that detects the relative distances of the underwater vehicle 9 from its surrounding structures; a measurement image acquisition unit 36 that acquires a measurement image of the horizontal plane in which the relative distances have been detected; an image storage unit 34 that stores images, each of which has at least one pixel to which horizontal position information is attached and is the image data representing the outer shapes of the structures in a given horizontal plane; an image selector 35 that selects, based on the vertical position of the underwater vehicle 9, one of the stored images that corresponds to the horizontal plane in which the relative distances have been detected; a corresponding-area identification unit 37 that identifies the area in the selected image that corresponds to the measurement image by performing map matching; and horizontal position calculator 38 that identifies, from the corresponding area in the selected image identified by the corresponding-area identification unit 37, the pixel that corresponds to the position at which the relative distances have been detected and calculates the horizontal position of the underwater vehicle.
    • 本发明的目的是提供一种用于检测水下车辆的位置的系统,其能够提高检测水下航行器的位置的精度。 位置检测系统包括:检测水下航行器9的垂直位置的压力传感器18; 距离传感器单元23,其检测水下航行器9与其周围结构的相对距离; 测量图像获取单元36,其获取已经检测到相对距离的水平面的测量图像; 存储图像的图像存储单元34,每个图像具有附加有水平位置信息的至少一个像素,并且是表示给定水平面中的结构的外部形状的图像数据; 基于水下航行器9的垂直位置选择与已经检测到相对距离的水平面相对应的所存储的图像之一的图像选择器35; 对应区域识别单元37,其通过执行地图匹配来识别与测量图像相对应的所选图像中的区域; 和水平位置计算器38,其从相应区域识别单元37识别的所选择的图像中的相应区域识别与已经检测到相对距离的位置相对应的像素,并计算水下航行器的水平位置 。