A Joint Industry Project (JIP) for underwater acoustic communication and underwater terrain imaging is proposed. The project includes: underwater acoustic communication, multi beam imaging, and acoustic release device testing. The underwater acoustic communication experiment uses a microphone to input speech signals, which are then modulated and encoded to compress the speech signals. The processed signal propagates into the water through the transducer. The decoded speech signal from the receiving end is output to the receiver through headphones, completing the entire communication process. This device adopts time-division multiplexing to enable the communication machine to have full duplex communication capability, which can greatly improve communication efficiency. Multi beam imaging experiments can achieve high-precision, full coverage, and seamless measurement of data, enabling autonomous underwater information acquisition and processing. After obtaining three-dimensional underwater information of rivers, lakes, and seas, it can present a panoramic underwater view. Acoustic release device is an acoustic remote control, mechanical release device. In the operation of both the surface deck unit and the underwater acoustic release unit, the underwater release unit receives the acoustic remote unlocking number from the deck unit, opens the mechanical locking mechanism, and after detaching from the seabed anchor weight, the floating ball carries the submersible marker to the surface, achieving the recovery of marine instruments.

开展水声通信和水下地形地貌成像试验研究联合工业项目（JIP）。该项目包括：水声通信试验，多波束成像试验，声学释放器试验。水声通信试验通过麦克风输入语音信号，经过调制和编码处理压缩语音信号。处理后的信号通过换能器传播到水中。接收端解码后的语音信号通过耳机输出给接收者，完成整个通讯过程。此设备采用时分复用的方式使通信机具备全双工通信能力，可大幅提升通信效率。多波束成像试验可实现数据的高精度、全覆盖、无遗漏测量，实现自主化水下信息获取与处理，将江河湖海的水下三维信息获取后实现水下立体全景呈现。声学释放器是一种声学遥控，机械释放的设备。包括水面甲板单元和水下声学释放单元工作中，水下释放单元收到甲板单元的声学遥解锁号，打开机械锁紧机构，与海底锚系重物脱离后，浮球携带潜标浮上水面，实现海洋仪器回收。

INITIATING MEMBERS | 发起单位

· Zhejiang University | 浙江大学

· Sun Yat-Sen University | 中山大学

· Huazhong University of Science and Technology | 华中科技大学

· The University of Hong Kong | 香港大学

· City University of Hong Kong | 香港城市大学

· Wuhan University of Technology | 武汉理工大学

· Harbin Engineering University | 哈尔滨工程大学

SCHEDULE | 时间表

Call for Participates and Introduction Meeting at ICNAME2024 | ICNAME2024会议JIP项目发布会：2024.8.23

First Exhibition Experiment and Meeting in Songhua River | 第一次松花江展示试验和会员会议: 2024.8.24

Deeper Theoretical Research and Innovation before | 深入理论研究与创新 截止于：2024.12

Joint Experiments Start | 共同试验开始：2025.5

CONTACT | 联系方式

JIP Contact：Prof. Bin Qi | 项目联系人: 齐滨教授 15804636984 qibin@hrbeu.edu.cn

TESTING DETAILS | 试验明细

1. Underwater Acoustics Communication | 水声通信

Voice Communication Machine and Underwater Acoustic Communication | 语音通信机与水声通信

Voice communication devices play an important role in diving activities and underwater operations, ensuring the safety of divers while greatly improving their work efficiency.

语音通信机在潜水活动和水下作业中有着重要意义，在保障潜水员的生命安全的同时，极大程度的提升了潜水员的工作效率。

2. Multibeam image sonar | 多波束图像声纳

Multibeam image sonar | 多波束图像声纳

Multi beam imaging sonar is an advanced underwater detection technology that obtains images of underwater targets by emitting multiple acoustic beams and receiving their echoes. This technology has a wide range of applications in marine scientific research, seabed topography mapping, underwater archaeology, sunken ship salvage, oil and gas exploration, and other fields. It mainly consists of a sonar transmitter, receiver, processor, and display. During operation, the sonar transmitter emits a series of sound beams underwater, which propagate in different directions and cover a larger detection area. When the sound beam encounters an underwater target, it will generate echoes. After receiving the echo, the receiver converts it into an electrical signal and passes it on to the processor. The processor processes and decodes the received signal to generate an image of the underwater target. Finally, the image is presented on the monitor for the operator to analyze and interpret.

多波束成像声纳是一种先进的水下探测技术，通过发射多个声波束并接收其回波来获取水下目标的图像。这种技术在海洋科学研究、海底地形测绘、水下考古、沉船打捞、油气勘探等领域具有广泛的应用。主要由声纳发射器、接收器、处理器和显示器组成。工作时，声纳发射器向水下发射一系列声波束，这些声波束沿不同方向传播，覆盖一个较大的探测区域。当声波束遇到水下目标时，会产生回波。接收器接收到回波后，将其转换为电信号并传递给处理器。处理器对接收到的信号进行处理和解码，生成水下目标的图像。最后，图像在显示器上呈现出来，供操作者分析和解读。

3. 声学释放器试验

Acoustic release device | 声学释放器

Acoustic release device, as an essential core and key equipment in underwater buoy systems, has a wide range of applications in marine science, marine engineering, and marine development processes, and is one of the most widely used underwater acoustic devices.

声学释放器作为水下潜标系统必不可少的核心关键设备，在海洋科学、海洋工程、海洋开发过程中具有广泛的应用，是用量最大的水下声学设备之一。

FUND & MEMBERSHIP | 资金和会员资格

The JIP organizer raised 2 million yuan as the initial fund for this project. | 

联合工业项目组织单位筹集了200万元作为本项目的初始基金

Full membership | 全会员资格:

Participates in project planning and tests, access of all test data results, and request of custom tests and results. Membership fees are determined based on the final number of participates. | 参与项目的策划及试验内容的确定、获得全部试验数据结果、并且可定制所需的试验内容及数据结果。会员费根据最终参与单位数目决定。

Limited membership | 有限会员资格:

Participates in project planning and limit access to the requested test results. Membership fees based on the number of requested results. | 参与项目的策划、可获得部分要求的试验结果。会员费根据所需求的数据结果交纳。

Observers | 观察员:

Participates in planning meetings and no access to experimental data and results. Free to participate with permission. | 参与策划会议，不拥有试验数据和结果。经同意免费参加。