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Smart Glove — Extension of the Tactile Sense

Biomedical Engineering, UG Pitching 2022 /

The tactile sense is critical for visually impaired people to sense the world, but one shortcoming is that they can not feel the object in the distance. This can cause many problems, such as pumping into the obstacles when using the hands or being less efficient in grasping the handrail on transportation. However, many on-market products focus on large-scale assisting instead of this smaller one. So, we are considering developing a glove that can transduce the distance information to vibration intensity to realize the extension of the tactile sense. Currently, we are using three pairs of ultrasonic distance sensors and vibration motors fixed on three sides of the glove to help the user sense the obstacles. Further development such as minifying the hardware, connecting to the Bluetooth, or developing AI is needed to reduce the discomfort caused by the glove and increase its functionality in assisting the users.

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WHALE

Faculty of Social Sciences, UG Pitching 2022 /

Project WHALE is aiming at unleashing the potential of technology to bridge the communication gap between caregiver and children with Autism Spectrum Disorder (ASD). Target audiences include individuals with ASD experiencing sensory abnormalities and their caregivers. These children may not be able to express their feelings and needs while caregivers also find it difficult to correctly identify the needs of them. To ease this problem, we propose developing the sensory wristband and the caring mobile application. The key features of the sensory wristband include recording environmental data and monitoring the internal physiological and emotional states of the children with ASD. We plan to incorporate multiple sensors including Photoplethysmogram and Galvanic Skin Response Sensor to measure internal states and external environment. For the caring mobile application designed for caregiver, the app will alert caregiver when the children with ASD feel highly aroused. The highlight feature is providing personalised report specifying possible triggers arousing children with ASD through adopting algorithms to cross-reference the anomaly with environmental stimuli to locate probable causes and provide preclinical advice. Major impact is to allow caregiver to understand more about the challenges going through by the children with ASD and provide more suitable help in correct timing.

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Megahealthy; Megasports

Faculty of Science, UG Pitching 2022 /

“With the rising demand of the sports facilities and the fact that HK people care more about doing sports after Tokyo Olympics, the apps Megahealthy; Megasports is designed to offer more options of sport facilities and more opportunities for people to do sports in the pandemic.

Smart rentals: After the private sports venues/ facilities providers release the venue and the available time on the app, the users can rent the facilities and select their favourable time slots, and the app will import statistical algorithms according to the user’s sports preferences /past record of no-show and calculates the probability of users’ no-show on that day. Once the no-show probability exceeds 70%, the waitlist will be opened for other users to rent.

Smart Exercise Stations: Users can choose the level of difficulty according to their own techniques and backgrounds of doing the sports. The users can imitate the elements on the photo, take a photo of themselves and upload it to the apps. AI algorithms will automatically calculate the similarity rate of the same photo posture and the athlete’ posture, and then give the users points. Their achievements can be shared in social media platforms.

AI Coach: The users first answer questions about their sports background and techniques according to the system instructions, and then can upload photos of their skills. AI will automatically generate technical suggestions and practice goals which are suitable for the user’s level. “

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Automated FireFighting Vehicle

Electrical and Electronic Engineering, The 5th Engineering Inno Show /

Under the project, a fire-fighting AGV is developed. The idea is to save and protect firefighters’ lives by substituting human firefighters with AI robots in hazardous firefighting environments (e.g., toxic, extreme heat, radioactive, etc.). The AGV prototype has utilized the image recognition technologies, as well as a handful of sensors, including a ALS module, infrared array sensor as ultrasonic sensor. Modifications on the stock powertrain system of the given chassis were also made to accommodate the need to traverse in the difficult terrain of a firefighting scenario. Water is chosen to be the fire distinguishing agent.

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HKUSearchU

Computer Science, The 5th Engineering Inno Show /

Have you ever lost any items in HKU? Or found any lost items but didn’t know what to do?
HKUSearchU helps HKUers to search and report lost items.

You can view all found lost items in a list or a map. Each record contains the item type and description, found time and location, retrieving method and an image.

If you found something, use the app to fill in a simple form so other users can view the record.

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3D Print Ultra-High Performance Concrete (UHPC)

Civil Engineering, The 5th Engineering Inno Show /

With the introduction of 3D printing technology, a new era of the construction industry can finally be formed! Traditionally, buildings are constructed by using wooden formwork as a mold to hold the concrete. However, engineers started researching ways to implement 3D printing technology into the construction industry, which would help reduce the waste of wood and shorten the construction time. So far, little research on 3D-printable Ultra-high Performance Concrete (UHPC) is done, and our project is to help with the research. We are designing some concrete mixes that are 3D-printable. We check their fresh state properties like workability and printability, as well as their hardened state properties such as compressive strength. We have successfully printed some models, and we are looking forward to promoting 3D-printable UHPC for the construction industry to use.

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Influence of Disinfectants on Microbial Water Treatment Processes

Civil Engineering, The 5th Engineering Inno Show /

During the COVID-19 pandemic, the use of disinfectants has surged in order to contain the spread of the virus. Many disinfectants will be sent to wastewater treatment plants after use for treatment before discharging back to the environment. Nevertheless, studies have shown that large amounts of disinfectants can inhibit biological reactions during the wastewater treatment process. The activated sludge process, which counts on microorganisms to break down complex organic matters in wastewater, is particularly susceptible to disinfectants. Hence, this study aims to investigate the inhibitory effects of two common active ingredients of disinfectants, namely QACs and sodium hypochlorite, on the activated sludge process. It is hoped that the study will be able to recommend an active ingredient of disinfectant that has the required efficacy and the least impact on the wastewater treatment system.

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New Geo-material for Reclamation: Utilizing local marine deposit and fly ash for backfilling

Civil Engineering, The 5th Engineering Inno Show /

Hong Kong is facing an increasing demand of reclamation land use. However, we are facing an unstable supply and increasing price of the tradition backfilling material – sand. Therefore, we need to investigate an alternative. Ash-strengthed marine deposit can be a solution. Marine deposit can gain strength after mixing with cement, coal ash and water. This material can also reuse contaminated marine deposit. Therefore, the feasibility of using ash-strengthened marine soil is going to be investigated.

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