Faculty of Engineering – Page 10

Smart Patrol Robot – Lost & Found

In this project, the goal is to develop the lost and found functionality of the patrol robot supplied by Airport Authority Hong Kong, where the robot patrols around designated areas and the camera of the robot will capture the surroundings. With object detection performed with an AI model, the robot will find lost items in the checkpoints and then store information of 2nd class objects, such as wallets, into a database. If lost belongings are found, the robot will report to the staff at the Hong Kong international Airport through a Telegram report channel and update a web portal which shows records of lost items.

Smart Water Auditing using IoT and Machine Learning

The Smart Water Auditing using IoT, and Machine Learning project aims to provide insights on how water is being in the households of Hong Kong to reduce the consumption of water and raise the awareness of people’s water consumption habits. To help increase participants’ water consumption awareness, a dashboard was designed to provide a simple yet interactive way for users to review their water usage. To create a dashboard, a graphical user interface and a communications system must be designed. However, the initial design of the dashboard suffered from connection issues and graphical user interface performance issues, both of which are essential functions of the dashboard. Therefore, extensive testing and optimisation was necessary to mitigate these problems. However, the dashboard still suffers from minor stuttering due to the microcontroller’s limited performance. Despite this, the design of the dashboard was a success, and it serves as a crucial medium for participants to review their water statistics.

CityMyth

FinTech, UG Pitching 2022 / By kit

CityMyth is a gamified AR city tour guide app that aims at reinvigorating the travel industry during and after the pandemic. Different from other travel apps, CityMyth integrates customized itinerary, AR experience, and scripted game（劇本殺）to familiarize travelers with the stories behind the city and add more amusement. Our product fits the needs of several user categories under the current situation of travel restrictions. For city dwellers, they can have a deeper understanding of their own city culture and history, while having an innovative form of entertainment. For travelers, they can utilize their limited travel time more efficiently and have more engagement during the trip. Regarding technology, we make use of Augmented Reality, Bluetooth Low Energy indoor positioning to realize our features. Our product is an unprecedented combination of these elements, so we believe a fad can be foreseen.

Smart Glove — Extension of the Tactile Sense

Biomedical Engineering, UG Pitching 2022 / By kit

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.

Automated FireFighting Vehicle

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

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.

iCollab

Computer Science, The 5th Engineering Inno Show / By kit

Having trouble finding groupmates for your course project or just want to find a study group? iCollab has got you covered! Use the app to find enthusiastic groupmates to work together! No more hassle of trying to find groupmates in an unfamiliar classroom!

HKUSearchU

Computer Science, The 5th Engineering Inno Show / By kit

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.

Expireminder

Computer Science, The 5th Engineering Inno Show / By kit

Our Motivation is to minimize the waste of food due to passing the expiry date and better stock management. Our Main Features include Expiry Date Tracking, Record Product ,Information,Notification before expiry dates and Share with family and groups. Other Features include Other Remark memo (e.g. Price) and Show Calories / Nutrition Facts.

3D Print Ultra-High Performance Concrete (UHPC)

Civil Engineering, The 5th Engineering Inno Show / By kit

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.

Influence of Disinfectants on Microbial Water Treatment Processes

Civil Engineering, The 5th Engineering Inno Show / By kit

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.