News

The EIE Newsletter (2020/21 Semester 2 Issue) is available now

Second Runner-up in the Postgraduate Paper Contest

The IEEE Macau Industrial Electronics Society (IES) Chapter organized the Postgraduate Paper Contest 2020 for the Hong Kong and Macau postgraduate students to promote the advanced power and electronics technologies for smart city. Our PhD student, Liu Ying, won the Second Runner-up in this contest with the research paper “A Study on the Safety of Inductive Power Transfer System for Kitchen Appliances”. This paper presents a detailed analysis of the safety of human body in the electromagnetic field generated by the inductive power transfer (IPT) system, which is designed for kitchen appliances. Comparisons of the basic and reference limit values of various safety standards are investigated through theoretical circuit analysis and extensive simulation studies. Simulation models of human body together with an IPT system for kitchen appliances are established to reveal the effect of electromagnetic field on the human body. Corresponding experiments are carried out through establishing a prototype of designed IPT system and simulating the human standing position. The measured results are consistent with the theoretical results.

Two teams of EIE postgraduate students and research staff from the Photonic Systems and Devices Focus Area attained the First and Second Prizes in the innovation category of the 7th Hong Kong University Student Innovation and Entrepreneurship Competition.

The 7th Hong Kong University Student Innovation and Entrepreneurship Competition was organized by the Hong Kong New Generation Cultural Association between April and May 2021. The competition was co-organized by the Hong Kong Science and Technology Parks Corporation (HKSTP) and funded by the Innovation and Technology Commission (ITC). It aims to develop science and innovation education, and gather the most talented innovators and entrepreneurs from all tertiary institutions in Hong Kong. Two teams of EIE postgraduate students and research staff from the Photonic Systems and Devices Focus Areaattained the following prizes in the innovation category of this competition! Award Project Student / Staff First Prize (Innovation - Energy, Environmental and Chemical Engineering category) High Performance Solution-Processed Perovskite Solar Cell Towards Sustainable Development ZHANG Heng Kai (PhD student) REN Zhiwei (Postdoctoral Fellow) LIU Kuan (Postdoctoral Fellow) Second Prize (Innovation – Information Technology category) Intelligent Driver Health Assessment System Based on the Optical Fiber Interferometer YU Jianxun (MSc in EIE student) CHEN Shuyang (PhD Student) QU Jiaqi (PhD Student) Solar energy, the most generous gift from the nature, can satisfy all the need for industry production and people’s daily life. Perovskite solar cell is the most promising photovoltaic technology to be the game changer of energy field for its low fabrication cost, high power conversion efficiency, tunable bandgaps and facile manufacture process. As epitaxial growth gives the highest-quality crystalline semiconductor thin films for optoelectronic devices, the project “High Performance Solution-Processed Perovskite Solar Cell Towards Sustainable Development” introduced a brand-new approach for achieving high quality and high efficiency perovskite solar cell.  While another winning project “Intelligent Driver Health Assessment System Based on the Optical Fiber Interferometer” developed an assessment system to monitor the drivers’ health. The system is implemented in the sensing part, which is a smart cushion embedded by the optical fiber interferometer to collect human’s ballistocardiograph (BCG) signal. The raw data collected will be transmitted to the cloud server by the 4G communication module for analysis. It achieves contactless health condition assessment and non-invasive vital signs monitoring for drivers to avoid traffic safety hazards caused by the drivers in poor health condition.

An EIE research team from the optical communication research group won the First Class Prize of the Technological Invention Award in the Guangdong Province Science and Technology Award 2020.

An EIE research team from the optical communication research group won the First Class Prize of the Technological Invention Award in the Guangdong Province Science and Technology Award 2020. The team jointly conducted the winning project “數據中心多維度光互聯關鍵技術及應用” (translation: “Key technologies for multi-dimensional optical interconnects for data centres and their applications”) with the scientists from the Jinan University and the Huawei Technologies Co., Ltd. The project studied the bottleneck problems in increasing the capacity of optical interconnects for data centres. It achieved the breakthroughs in solving formidable difficulties in three technologies in relation to new mode optical fibres, digital signal processing core chips based on the new mode, and chips for silicon photonic switches. This project has generated significant economic benefit and obtained 38 patents in various countries. One of its technologies has been applied to the intelligent monitoring of optical fibre cables and power networks.

Mr Chen Yuqi, our BEng in EIE graduate and the CEO & co-founder of Hai Robotics, has been selected by the Fortune China as one of the 40 business elites under the age of 40 in 2021!

Congratulations to Mr Chen Yuqi, our BEng in EIE graduate, for being selected by the Fortune China as one of the 40 business elites under the age of 40 in 2021! The “Fortune China’s 40 Under 40 List” features successful young and forward-thinking leaders in different business fields, who create social and economic values for China and the world. Mr Chen is the CEO and co-founder of Hai Robotics, a pioneer company in developing autonomous case-handling robotic system. Hai Robotics is committed to providing efficient, intelligent and customized warehouse automation solutions for factories and warehouses through advanced robotics technology and AI algorithms. In 2015, the company developed HAIPICK, the first autonomous case-handling robotic system, and put it into commercial operation. With the HAIPICK system, clients can increase their storage density by 80% to 130%, and improve the workers' efficiency by 3 to 4 times through automation and transformation of the warehouse. The system has facilitated many local and international enterprises including SF, JDL and DHL to optimize their warehouse operations. Fortune China: http://www.fortunechina.com/rankings/c/2021-04/27/content_389451.htm

The paper coauthored by Dr Yuyi Mao and Dr Jun Zhang in the IEEE Communications Surveys and Tutorials journal has received the 2021 IEEE Communications Society Best Survey Paper Award.

The paper “A survey on mobile edge computing: The communication perspective” coauthored by Dr Yuyi Mao, Dr Jun Zhang and other collaborators from The University of Hong Kong and The Hong Kong University of Science and Technology has received the 2021 IEEE Communications Society Best Survey Paper Award. This award is given to papers published in any journal owned exclusively by the IEEE Communications Society in the past five years. The winning paper was published in the IEEE Communications Surveys and Tutorials journal (impact factor: 23.7) in 2017. It provides a comprehensive survey of the state-of-the-art mobile edge computing (MEC) research with a focus on joint radio-and-computational resource management. The paper also discusses a set of issues, challenges, and future research directions for MEC research, including MEC system deployment, cache-enabled MEC, mobility management for MEC, green MEC, as well as privacy-aware MEC. This paper, including its Arxiv preprint, has received more than 2000 citations according to Google Scholar, and it has become a classic reference on MEC.

HKIE-LTD Best Student Paper Awards 2020

We are glad to inform that our TSE student, Mr. Wilson Kwok has awarded the HKIE-LTD Best Student Paper Award for 2020.  Wilson’s dissertation title is AI model for signalized intersections analysis. His project was on developing an AI model for arterial road traffic signal timings using Machine Learning. The objective of this project was to build an AI model to analyse and to recommend optimal signal timings, by learning from existing systems. Using Artificial Neural Network, Wilson was able to develop AI models with sufficient accuracy to be used in practice. The level of accuracy depended on the amount of training data for complex network. Wilson’s great work has spun a new project that is to determine whether the trained model features are transferable to other arterial road networks to reduce the need for large training data set. Our greatest congratulations to Wilson!

Congratulations to The Hon. Alfred Sit Wing-hang, JP, Secretary for Innovation and Technology as one of the recipients of Outstanding PolyU Alumni Award (OPAA)

Launched in 1996, the biennial OPAA is jointly organised by PolyU and the Federation of the Hong Kong Polytechnic University Alumni Associations. This year marks the 13th award presentation and more than 80 distinguished alumni in various professions have been honoured in past years.   Ir Alfred Sit was awarded in recognition of his dedication to promoting Hong Kong’s future by spearheading innovation and technology development. Being the current Chairman of the Departmental Advisory Committee, we appreciate Ir Sit’s contribution in giving valuable advices on various aspects of the Department’s development.   More about the award of recipient, please click here.

Supervised by Prof. Changyuan Yu, a team of students and graduates from the MSc in EIE and PhD programmes attained the First Prize in the 6th IoT Technology and Application 3S Competition for University Students in China.

Supervised by Prof. Changyuan Yu, a research team comprised of Mr Jianxun Yu (MSc in EIE student), Ms Shuyang Chen (PhD student), Dr Fengze Tan (PhD graduate), Ms Jiaqi Qu (PhD student) and Mr Weimin Lyu (MSc in EIE graduate) attained the First Prize in the 6th IoT Technology and Application 3S Competition for University Students in China. The competition was hosted by the Chinese Institute of Electronics and the Chinese Institute of Communications in Nanjing in December 2020. It aims to encourage innovation and development of Smart Service System (3S) in the areas of Internet of Things (IoT) and communications. The winning project “Smart Health Monitoring System for Automobile Drivers Based on Optical Fiber Interference Sensing” developed an optical fiber interferometer for embedding in car seat cushions. This system can monitor the real-time heart and respiration rates of drivers in a contactless and non-invasive way in order to avoid traffic accidents caused by drivers with health issues.

The paper published by Dr Liang Liu and his Research Associate, Mr Zhaorui Wang, in the IEEE Transactions on Wireless Communications journal was listed as an Essential Science Indicators (ESI) Hot Paper on the Web of Science.

The paper “Channel Estimation for Intelligent Reflecting Surface Assisted Multiuser Communications: Framework, Algorithms, and Analysis” published by Dr Liang Liu and his Research Associate, Mr Zhaorui Wang, in the IEEE Transactions on Wireless Communications journal in October 2020 was listed as an Essential Science Indicators (ESI) Hot Paper on the Web of Science. Hot papers are papers that receive a large number of citations soon after publication, relative to other papers of the same field and age. They are papers published in the past two years that received a number of citations in the most recent two-month period that places them in the top 0.1% of papers in the same field. In intelligent reflecting surface (IRS) assisted communication systems, the acquisition of channel state information is a crucial impediment for achieving the beamforming gain of IRS because of the considerable overhead required for channel estimation. A novel three-phase pilot-based channel estimation framework for IRS-assisted uplink multiuser communications was proposed in this top-performing paper.