基于超声波散射分析的富余水深检测系统  

Detection system of under keel clearance based on ultrasonic scattering analysis

作　　者：熊木地[1] 赵丛涛 由鑫 Xiong Mudi;Zhao Congtao;You Xin(School of Information Technology,Dalian Maritime University,Dalian 116026,Liaoning,China)

机构地区：[1]大连海事大学信息技术学院,辽宁大连116026

出　　处：《电测与仪表》2021年第12期155-160,174,共7页Electrical Measurement & Instrumentation

基　　金：辽宁省百千万人才工程资助项目(2012921080);中国海事局科技专项基金(0716-13400003N008)。

摘　　要：为了防止升船机船厢搁浅事故的发生,开发了一套基于超声波散射分析的富余水深检测系统。该系统基于水下超声波传输时遇到障碍物发生散射的特性,通过FPGA控制超声波发射阵列在升船机船厢内构建多个横向的超声波相对路径,并通过接收阵列采集声压数据,将数据发送给富裕水深检测软件进行数据的线性回归分析及富余水深的计算。该系统已应用于向家坝升船机船厢内,具有稳定性强、安装方便、实时性高等优点。In order to prevent the ship cabin grounding accident of ship lift,a set of under keel clearance(UKC)detection system based on ultrasonic scattering analysis is developed in this paper.Based on the scattering characteristics of obstacles encountered in underwater ultrasonic transmission,the system adopts FPGA to control the ultrasonic transmitting array to build multiple transverse ultrasonic relative paths in the cabin of the ship lift,and collects the sound pressure data through receiving array,and sends the data to the UKC software for data linear regression analysis and calculation of the under keel clearance.The system has been used in the chamber of Xiangjiaba ship lift.It has the advantages of strong stability,convenient installation and high real-time performance.

关 键 词：超声波 FPGA 散射效应 超声波相对路径 线性回归分析 富余水深 

分 类 号：TM93[电气工程—电力电子与电力传动]