RESEARCH

Research Brief

Wearable manpower-saving devices developed by NSYSU available on market soon

 

(Provided by Office of Research and Development) The Council of Agriculture has recently organized a press conference on technology transfer by NSYSU’s Bionic Technology Research Team. Associate Professor Wei-Chih Lin of the Department of Mechanical and Electro-Mechanical Engineering at NSYSU obtained the support of the Smart Agriculture Project to use the bionic technology to develop three models of wearable manpower-saving device imitating the moves of gibbons. The devices will be available on the market in the first quarter of this year. After the tests were conducted by farmers, the devices were improved: their weight does not surpass 2 kg and they can save 50-60% of muscle power. The Chief Secretary of the Council of Agriculture Mei-Ling Fan said that she hopes wearable manpower-saving devices will be incorporated into the agricultural devices’ subsidy program in the future.
 

 

First manned underwater dive of NSYSU’s developed MIT small submarine in Kaohsiung Harbor accomplished

 

2021-10-04 from Discover NSYSU

 

The manned underwater vehicle (MUV) for scientific research developed by NSYSU Underwater Vehicle R&D Center completed its first manned underwater dive in the shipyard of Jong Shyn Ship-building Group located in Kaohsiung Harbor reaching a depth of 5~8 meters to the bottom of the harbor, testing its life-supporting system and first cruise at a fixed depth. NSYSU President Ying-Yao Cheng emphasized that the first MIT (made in Taiwan) small submarine was developed by an R&D alliance led by NSYSU with system design and entered the stage of manned submersion for exploration and research. This will open up infinite possibilities for Taiwan's underwater “blue technology”.

The first MIT underwater manner vehicle developed by NSYSU, though small in volume for a submarine, has everything it needs. The metal manned cabin in the center can fit two pilots. With a net weight of 3.7 tons, which will be weighted as 4.2 tons if all the sub-systems are equipped, the MUV looks like a giant robot. Its stainless steel frame securely protects the electric power system and thrusters for vertical and horizontal maneuvering. The MUV is designed aiming at a dive depth up to 500 m and its battery and life support system can last for 8 hours. The vehicle has an emergency rescue design that allows quick air bag inflation, quick releasing of extra heavy loads, and resurfacing by emergency power.

Director of NSYSU Underwater Vehicle R&D Center, Prof. Chua-Chin Wang, said that the previous test of the MUV in the open waters around the Anping Port in Tainan was conducted without personnel inside the cabin: instead, divers wearing diving suits and equipment stayed around the outer stainless steel frame of the vehicle and operated the dashboard to complete the powered navigation test of the MUV at the depth of 8 m. This test in Kaohsiung Harbor was the first time that a pilot sits inside the cabin and operates measurement instruments. Thanks to the strong support by Jong Shyn Ship-building Group, including shipyard equipment and logistic, the test turned out to be a great success. He emphasized that this has been the most difficult test to date, testing the functioning of the life support system while the researcher, namely the pilot inside, performs research activities in the cabin. To ensure the safety of the pilot, the R&D team let the personnel inside the cabin repeatedly tested the operation of the life support system on land before this serious dive test. Only after the assigned pilot became familiar with the whole system, the team conducted the dive in the harbor in the Jong Shyn Shipbuilding Group shipyard.

On the day of the field test, after the vehicle submerged, the external pilot started operating the submarine immediately and dived vertically to a depth of 5 m, diving and resurfacing several times, and then allowing the pilot to pop inside the cabin. The pilot spent nearly one hour on the bottom of the harbor, and confirmed the normal operation of the self-sustained life support system. After the crew and the vehicle resurfaced safely, the R&D team on the shore witnessed this historic moment and shouted “YES!”. Next was the fixed depth cruise test: the MUV navigated at a fixed depth under the surface of the water to test the safe operation of the power system at different depths. Director Wang emphasized that the completion of these two tests means that the submarine is ready to perform manned diving operations and stable underwater navigation cruising. These tests marked another key milestone in the R&D of MIT submarine developed and built by NSYSU.

“The R&D team plans to conduct another round of test close to the coast line of Little Liuchiu Island next month.” Director Wang said that after the success of this test in the port, the underwater vehicle R&D team of NSYSU, including Director of Taiwan Ocean Research Institute, Professor Chau-Chang Wang, Institute of Undersea Technology (IUT) professors: Hsin-Hung Chen, Linus Yung-Sheng Chiu, and Yu-Cheng Chou, plan to conduct a manned submersible open water trial close to Little Liuchiu Island, Pingtung County, and take on the challenges of the open sea: the wind, waves, and currents affecting the maneuverability and safety; the team hopes to reach a depth of up to 20 meters. If the next test run is completed successfully, it will be another whole new page in Taiwan's underwater technology.

 

 

Global microchip shortage: unique crystal growth technology by NSYSU Center of Crystal Research upgrades Taiwan’s semiconductor industry

 

The global market is facing a severe shortage of microchips! The much-needed third-generation semiconductor material, the silicon carbide (SiC) crystals, is challenging to manufacture, hence the supply shortage. The Center of Crystal Research at National Sun Yat-sen University is leading the research in equipment and technologies for crystal growth and manufacturing silicon carbide crystals at a high temperature exceeding 2200°C. The Center is the only research center in Taiwan with production capability for 6 to 8-inch wafers. The high-quality crystals are entirely made in Taiwan (MIT), helping to upgrade the semiconductor industry in Taiwan.

 

Professors Lih-Tyng Hwang and Tzyy-Sheng Horng received the Most Influential Research Monograph Award from the Ministry of Science and Technology

 

For the first time, the Ministry of Science and Technology organized a contest for the most influential research monograph, "3D IC and RF SiPs, Advanced Stacking and Planar Solutions for 5G Mobility", a monograph written jointly in English by Professor Lih-Tying Hwang of the Institute of Communications Engineering and Professor Tzyy-Sheng Horng of the Department of Electrical Engineering was awarded the Most Influential Research Monograph Award in the category of Engineering and Technology, which represents excellence in research. Both prefessors encapsulated the essence of their years-long academic and research expericence into the monopgraph.

 

NSYSU team developed miniaturized silicon photonic gyroscope driver chip the size of a mung bean

 

The Department of Photonics has established an academia-industry research collaboration to develop a new type of silicon photonic gyroscope modules-hybrid interferometric optical gyroscope. Over the past two years,the NSYSU team has reached a milestone, using the Si photonic technology, and demonstrated the first miniaturized Si photonic fiber-optic gyroscope driver chip in the world, which has shown a great potential for mass production. The volume of the whole chip does not surpass 5 mm- it is as small as a mung bean, and the production cost was reduced to one third. Professor Yi-Jen Chiu of the Department of Photonics said that the main application of the silicon photonics gyroscope  is in the huge market of miniaturized navigation, including  biomedical testing, self-driving cars, smart robots, GPS aircraft tracking, and CubeSat.

 

Saving power and labor using smart technology: AI shrimp farming system producing healthy shrimps

 

To overcome various challenges faced by the traditional aquaculture industry in Taiwan, Ing-Jer Huang, Yun-Nan Chang, and Shiann-Rong Kuang - professors of the Department of Computer Science and Engineering, and Chin-Chang Hung and Li-Lian Liu - professors of the Department of Oceanography, joined forces to form a cross-disciplinary research team. The research team applied artificial intelligence technology to shrimp farming and achieved spectacular results. Infrared underwater monitoring system, image enhancement and recognition technologies were developed to automatically identify the bait and the shrimp. The APPs on the server or smartphones perform automatic feeding. Using AI technology can greatly improve the traditional pattern of  four fixed-quantity feedings per day. The smart system identifies residual bait every 30 minutes, and chooses the feeding efficiency. The system also prevents the residual bait from polluting the water and helps save on labor costs.