数字式水下甲壳生物发声感知设备设计  

Design of underwater crustacean acoustic perception digital equipment

作　　者：曹天宇 杨一晨 陈琳[2] 戴宪邦 赵晓群 CAO Tianyu;YANG Yichen;CHEN Lin;DAI Xianbang;ZHAO Xiaoqun(Department of Information and Communication Engineering,College of Electronic and Information Engineering,Tongji University,Shanghai 200092,China;Shanghai Marine Equipment Research Institute,Shanghai 200031,China;Shanghai Shipbuilding Technology Research Institute,Shanghai 200032,China)

机构地区：[1]同济大学电子与信息工程学院信息与通信工程系,上海200092 [2]上海船舶设备研究所,上海200031 [3]上海船舶工艺研究所,上海200032

出　　处：《传感器与微系统》2023年第4期99-102,106,共5页Transducer and Microsystem Technologies

基　　金：上海智慧农业项目(2019-02-08-00-10-F01117)。

摘　　要：基于前期对水中甲壳类生物发声现象验证性实验研究,设计实现了数字式水下甲壳生物发声感知设备。针对水产养殖需求和传统水听器应用存在的问题,提出系统构架及核心性能参数。详细分析了硬件系统设计实现的关键部分,高精度模/数(A/D)采集模块的电路设计,硬件主板机械设计和接口实现,整机装配水密处理和线缆接口。由数据传输与本地存储的功能需求,利用Python软件实现用户数据报协议(UDP)网络无人值守上位机测试与应用。实施外场验证性采集实验,并对数据处理得到信号波形。利用短时傅里叶变换对信号关键参数进行提取,验证了设备对水产养殖中的声信号具有良好感知性能。Based on research on acoustic phenomenon of crustaceans,an underwater crustacean acoustic perception digital equipment is designed and realized.Aiming at the requirement of aquaculture and the problems in traditional hydrophones,system architecture and core parameters are proposed.The key parts of the hardware system design and realization,circuit design of the high-precision analog to digital(A/D)acquisition module,mechanical design and interface realization of the main board of hardware,and the watertight processing and cable interface of the whole machine assembly are analyzed in detail.According to the functional requirement of data transmission and local storage,Python is used to realize unattended upper PC test and application of user datagram protocol(UDP)network.Out-field verification acquisition experiment is carried out,and the data is processed to get the signal waveform.The short-time Fourier transform(STFT)is used to extract the key parameters of signal.It is verified that the device has good perceived performance to acoustical signal in aquaculture.

关 键 词：发声感知 数字式 高精度 无人值守 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TB52[自动化与计算机技术—控制科学与工程]