HONG KONG, April 28, 2021 /PRNewswire/ — In the “Hong Kong Smart City Blueprint 2.0” released in 2020, the Hong Kong government put forward a number of measures to capitalise on innovation and technology (I&T) to build a world-famous Smart Hong Kong characterised by a strong economy and high quality of living. Under this backdrop, The Hong Kong Polytechnic University (PolyU) established the Smart Cities Research Institute (SCRI) in 2020. As Director of SCRI, Professor Wenzheng SHI led his team to develop a number of cutting-edge patented technologies that help address various societal issues, including the revitalisation of old buildings, slope safety, prevention and control of the COVID-19 pandemic, and the construction of spatial data infrastructure, hoping to provide comprehensive solutions for smart city development in Hong Kong and the Nation. The project received a Gold Medal at this year’s Special Edition 2021 Inventions Geneva Evaluation Days – Virtual Event. The following three PolyU-developed smart city technologies by Professor Shi’s team are vital in promoting smart city development:

Three-dimensional (3D) Mobile Mapping System: Providing accurate 3D maps to support wide smart city applications

According to the statistics in 2019, more than 10,000 old residential buildings are at least 50 years old in Hong Kong. Most of these old buildings do not have 3D indoor Building Information Models (BIM), which creates many challenges when it comes to reconstruction or maintenance. In view of this, the PolyU team has developed a lightweight and reliable 3D mobile mapping system (mobile mapping backpack), which can easily measure cities and obtain 3D maps with centimeter-level accuracy. It can be used to build spatial data infrastructure and can thus support smart city applications in many fields. The system adopts advanced technologies such as Simultaneous Localisation and Mapping (SLAM), which is not restricted by the signal receiving area of the Global Navigation Satellite System (GNSS). It can carry out continuous data collection in different complex indoor and outdoor environments and is particularly suitable for high-density and complex urban environments, such as those in Hong Kong. 

Modular Integrated Construction (MiC) is a primary development direction of today’s construction industry.

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