On August 10th, the "Zhaoyi Innovation Cup" 19th National finals of China Graduate Electronic Design Competition came to an end in Wuxi Campus of Southeast University. Through the fierce competition of team introduction, live competition, works display, and expert questions and answers, Water Acoustic students stood out among 7,368 teams from more than 310 universities and research institutes nationwide, and won a total of 6 national awards, including 2 national first prizes, 2 national second prizes, 1 enterprise special second prizes, and 1 national third prizes. Won the best result since the College of Underwater Acoustic Engineering participated in the China graduate Electronic Design competition.
Display of Winning Works
Title of work：Underwater Beidou - distributed underwater acoustic communication positioning and navigation integrated system
Team member：Liu Zhaofeng、Qin Zhen、Wang Yang
Instructor：Zhou Feng、Wang Haoyu
Introduction of works：Multi-function, multi-purpose and highly maneuverable underwater UVs have been widely used in Marine survey, seabed operations and other task scenarios. Accurate positioning and reliable remote control of UVs are key problems that need to be solved urgently in the cooperative operation of UVs formation. The team developed an integrated system of distributed underwater acoustic communication positioning and navigation, and realized real-time positioning and tracking of multiple underwater underwater vehicles and reliable communication remote control by using a wide range of underwater communication and positioning integrated machines. The team studied many core processing algorithms such as underwater long baseline positioning algorithm, underwater acoustic spread spectrum communication algorithm and time synchronization algorithm, and developed and implemented them on multi-processor hardware platforms such as FPGA, ARM and DSP. The integrated underwater communication positioning machine and multi-channel parallel timing equipment were developed, and the host computer display and control software was developed on the domestic system. It has completed the positioning tracking and reliable remote control of multiple underwater vehicles, providing a full-chain, systematic hardware and software solution for the research and development of underwater communication positioning and navigation equipment, enabling the high-quality development of underwater communication positioning equipment.
Title of work：Localization of Small Multi-beam Image Sonar
Team member：Zhang Boming、Li Baihai、Sheng Shoumeng
Instructor：Du Weidong、Chen Baowei
Introduction of works： In view of the current image sonar underwater target imaging and detection performance is weak, low degree of autonomy and control, based on the underwater acoustic target acoustic sensing technology and equipment research team of the College of Underwater Acoustic Engineering years of technical accumulation, the participating team overcome the basic theory of acoustic imaging and engineering implementation and other key core issues, and finally developed and designed this work - a domestic small multi-beam image sonar. With the characteristics of small size, light weight and complete autonomy and controllability, this work has been applied in many major tasks. It can carry out high-definition imaging and real-time detection of underwater targets, and is suitable for carrying on various underwater unmanned platforms for navigation safety assurance and underwater target monitoring and search in various application scenarios.
Title of work：Deep-sea adaptive multi-mode underwater acoustic communication equipment based on OMAPL138 heterogeneous dual-core processor
Team member：Ma ShengKai、Liu Sicheng、Wang Bin
Instructor：Han Xiao、Wei Li
Introduction of works：Deep-sea acoustic communication technology is an important means to achieve stable and reliable deep-sea cross-layer information exchange, which can not only provide security for the safe navigation and real-time communication of deep-sea unmanned underwater vehicles, but also have a wide application prospect in the fields of environmental monitoring, resource development and ecological protection. The team designed a deep-sea adaptive multi-mode underwater acoustic communication device based on OMAPL138 heterogeneous dual-core processor. The device supports the adaptive switching of three communication modes: multi-channel spread spectrum, direct spread spectrum and single carrier, which are respectively for the use of short-range mobile communication, long-range robust communication and short-range high-speed communication. The equipment has a high degree of integration, which can undertake the interactive transmission of information in underwater navigation, positioning and communication, and participate in the construction of deep-sea environment monitoring network.
Title of work：Polar Underwater Acoustic and Marine Environment Multi-parameter Observation Equipment
Team member：Mu Mengfei、Ma Siyu、Xiu Xian
Instructor：Sheng Xueli、Zhang Yuxiang
Introduction of works：For the polar environment with high latitude and high sea ice density, the team designed a multi-parameter observation device for polar underwater sound and Marine environment. The device has the functions of long time series continuous observation, double Iridium real-time backtracking, multi-parameter acquisition and analysis. This work has the polar air-ice-sea three-dimensional observation capability, forming a full link of Arctic comprehensive observation information with in-situ unmanned observation -- automatic feature extraction -- real-time return of results.
Title of work：Deep Blue Carrier Pigeon - the pioneer of global connectivity
Team member：Xing Minghan, Zhou Yiwen, Miao Bailu
Instructor：Shang Zhigang
Introduction of works：With the increasing demand for Marine scientific research and three-dimensional observation network construction, it has become a key problem to realize cross-domain reliable communication and network coordination between above and below water. In order to further promote the global connectivity of the ocean, this project takes multi-source communication as the core, and designs and produces an air-sea cross-domain communication gateway system to realize the global interconnection of air-space-land-sea-submersible, which has the functions of multiple communication protocol conversion, optimal communication link selection and multi-link real-time cross-domain communication. It provides a feasible solution for the construction of ocean global observation network and communication network.
Supplementary Introduction:
China Graduate Electronic Design Competition is one of the graduate discipline competitions jointly sponsored by the Center for Degree and Graduate Education Development of the Ministry of Education, the National Engineering Graduate Education Steering Committee and the Chinese Institute of Electronics. It is also one of the theme competitions of the "China Graduate Innovation Practice Series Competition". It is a group electronic design creative practice activity for postgraduates in universities and research institutes all over the country, aiming to promote the reform and innovation of the training mode of information and electronic postgraduates in universities and research institutes, cultivate the practical innovation consciousness and basic ability of postgraduates, the humanistic spirit of teamwork and the study style of combining theory with practice. Promote the cultivation of postgraduate engineering practice quality and create conditions for talents to stand out.
