Hong Kong Logistics and Supply Chain MultiTech R&D Centre

開放港口數據新時代

13 June 2023

港口統計數字通常是指港口管理當局發布的公共數據。公共數據不容易獲取，而且在報告方法和報告格式方面各不相同。隨著AIS (Automatic Identification System) 數據可供使用，令建立全球即時港口訊息系統變得可行。我們研發了多項技術來構建全球性港口訊息系統，涵蓋基於(AIS)數據的港口擠塞和港口連通性指標。

聚類演算法和雙層 DBSCAN (Density-Based Spatial Clustering of Applications with Noise)：我們首先研發了一種聚類演算法來自動識別泊位和錨地區域以追蹤船舶靠泊、繫泊和船舶状况。泊位區域的描述對於港口訊息系統的發展至關重要。因此，我們構建了一個具有兩層聚類的空間聚類演算法(spatial clustering algorithm)來消除干擾。在第一層，我們從 AIS 數據中取得船舶在港口的軌跡。DBSCAN 用於去除干擾並按速度過濾的每艘船的所有繫泊點進行聚類。在第二層，我們再次使用DBSCAN來區分靠泊和錨地區域。運行 DBSCAN 的迭代以最小化梯度，直至演算法接近預設的閾值。

港口擠塞與港口連通性：港口擠塞程度是吸引航運公司挂靠港口的重要因素。港口擠塞是指船舶在錨地區域排隊等待碼頭靠泊。在研發我們的港口訊息系統時，我們界定了兩個擠塞指標：（1）在靠泊碼頭之前停泊在錨地的船舶比例，以及（2）船舶在錨地的平均等待時間。而另一方面，港口連通性反映了該地區連接全球市場的能力。我們創建了一個新的連通性索引，不僅可以顯示船舶流量和路由多樣性，還可以顯示網絡屬性。連通性指數的計算採用四個步驟：（1）提取航運軌跡和行程長度，（2）計算船舶停靠港口的數量和連接不同國家的數量，以反映港口的策略重要性以吸引長途船舶，（3）構建了基於所有軌跡的全球班輪運輸網絡來計算網絡指標，以及（4）統一所有指標來計算總分。

Reference: Dong Yang, Xiwen Bai and Venus Lun, 2022, Port Statistics: The Rise of a New Era for Open Data, The Maritime Economist, 10:2, page 7-12

LSCM – Venus Lun

LSCM: Logistics and Supply Chain MultiTech R&D Centre in Hong Kong

Logistics and Supply Chain MultiTech R&D Centre (LSCM) is Hong Kong’s leading Centre of technology research and development (R&D) across numerous sectors, both public and private. Since its founding in 2006, LSCM has been dedicated to fostering technological innovation to enhance the efficiency in the logistics and supply chain industries.

The role of Logistics and Supply Chain MultiTech R&D Centre (LSCM) in Hong Kong and Beyond

Hong Kong is considered as one of the world’s leading logistics hubs. LSCM aims to reinforce this position through the continuous enhancement of technological facilities within areas of logistics, supply chain, artificial intelligence, and e-commerce, etc.

Always on the move, LSCM seeks to ensure Hong Kong keeps up on a global scale, cementing our place on the world stage as a progressive adopter of innovative technology. With an extensive range of projects developed over the years, LSCM nurtures ideas for growth not only in Hong Kong but also in Mainland China.

Facilitating Innovation Across Multiple Industries

To promote economic growth through heightened efficiency, LSCM has spurred the development of numerous cutting-edge technologies, including supply chain technology, robotics technology for logistics, and an AIoT Chinese Medicine dispensing and delivery system. These projects were undertaken to not only enhance efficiency, but also to provide effective solutions for the ageing problems across multiple industries in Hong Kong.

LSCM has a wealth of case studies in our database. These range from sophisticated virtual reality training modules to secure E-Lock system and E-Cheque Wallet applications, and many more. Our case studies showcase the impact of technology deployment on different sectors, demonstrating how a seemingly simple idea can transform the entire industry operations.

Future Development of Logistics and Supply Chain MultiTech R&D Centre (LSCM)

Moving forward, LSCM will work closely with the Government, academia and the industry in Hong Kong to continuously foster the development and adoption of technological innovations that address emerging supply chain and logistics challenges. As part of this effort, we prioritise building a community that focuses on collaboration to accelerate the progress.

To become part of our committed community of leading researchers and professionals, take a look at our membership program. There, you’ll discover various networking opportunities for your enterprise. Ranging from events for exposure and networking, through to cutting-edge researches for technology advancement, our membership program is the best way to enjoy LSCM’s extensive services.

If you have any questions about what we do, how we do it or anything else, feel free to contact us.