COSCO SHIPPING Science & Technology obtains patents related to vessel trajectory simplification, enabling rapid simplification of vessel wandering AIS trajectories and efficient processing of big data.

On March 29, news reports indicate that China Merchants Heavy Industry Technology Co., Ltd. has applied for a patent titled “A Rapid Simplification Method for Ship Hovering AIS Trajectories,” with the authorization announcement number CN119829691B, and the authorization announcement date is March 27, 2026. The application publication number is CN119829691A, the application number is CN202510027380.6, the application publication date is March 27, 2026, and the application date is January 7, 2025. The inventors are Tu Enmei and Han Yi, the patent agency is Beijing Haihong Jiacheng Intellectual Property Agency Co., Ltd., and the patent agent is Zhang Tao. The classification numbers are G06F16/29, G01C21/20, G06F18/10, G06F16/901, G06Q10/047.

The patent abstract shows that this invention belongs to the intersection of maritime, shipping, data science, machine learning, and artificial intelligence fields, specifically relating to a rapid simplification method for ship hovering AIS trajectories, including: arranging the ship’s AIS data in chronological order to form the ship’s AIS trajectory; splitting the AIS trajectory into multiple trajectory segments; performing self-intersection detection on each trajectory segment; constructing a directed graph of trajectory segments with intersection points; using a graph shortest distance solving algorithm on the constructed directed graph to identify simplified trajectories and output them. The method provided by this invention can quickly remove and correct trajectory redundancy caused by hovering while maximizing the retention of useful information from the original trajectory without changing the trajectory shape of other normal navigation segments; the constructed directed graph is very sparse, and the computation speed is highly efficient and quick, requiring no manual fine-tuning of parameters, making it suitable for automatically and quickly processing large volumes of trajectory data.

China Merchants Heavy Industry Technology was established on May 19, 1993, and was listed on the Shenzhen Stock Exchange on May 6, 2010, with its registered and office locations in Shanghai. It is a leading enterprise in the field of smart transportation, shipping, and other sectors in China, with full industrial chain service capabilities and highlighted investment value.

China Merchants Heavy Industry’s main business covers smart transportation, smart shipping, smart logistics, smart security, and other fields, with its industry classification being Shenwan’s computer - IT services II - IT services III, involving concepts such as unified large market, import expo, and artificial intelligence.

In 2025, China Merchants Heavy Industry’s operating income was 1.806 billion yuan, ranking 2/7 in the industry, second only to Ronglian Technology (Rights Protection) at 1.949 billion yuan, and higher than the industry average of 1.073 billion yuan and the median of 1.232 billion yuan. Among its main businesses, digital shipping and supply chain accounted for 1.1112 billion yuan, or 61.59%, digital city and transportation accounted for 676 million yuan, or 37.46%, and others accounted for 17.2939 million yuan, or 0.96%. The net profit was 34.5951 million yuan, ranking 3/7 in the industry, lower than Xingtu Measurement and Control’s 101 million yuan and Jiuyuan Yinhai’s 86.2043 million yuan, but higher than the industry average of 17.5496 million yuan and the median of 32.5426 million yuan.

The recent patent status of China Merchants Heavy Industry Technology Co., Ltd. is as follows:

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Editor: Xiaolang Quick Report