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:

| No. | Patent Name | Patent Type | Legal Status | Application Number | Application Date | Publication Number | Publication Date | Inventors | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | A Method for Generating Shipping Research Reports Based on Multi-Agent Collaboration | Invention Patent | Substantive Examination Effect, Publication | CN202511870907.8 | 2025-12-11 | CN121599127A | 2026-03-03 | Pan Chong, Wang Xinbo, Wang Min, Hao Yi | | 2 | A Real-Time Target Detection Method and System Based on Day-Night Classification and Adaptive Perception | Invention Patent | Publication | CN202511713345.6 | 2025-11-20 | CN121725273A | 2026-03-24 | Han Zhuocheng, Liu Jun | | 3 | A Port Ship Queue Prediction Method and System Based on Machine Learning | Invention Patent | Publication | CN202511514860.1 | 2025-10-22 | CN121707025A | 2026-03-20 | Yuan Meng, Zhou Zhiquan, Yang Tao, Ge Zhonghui, Lin Xinru, Yang Wei, Lai Jiawei, Zhong Jiajun, Lin Fengshou, Xu Bin | | 4 | A Port Security Management Method and System Based on Target Detection and Large Language Models | Invention Patent | Substantive Examination Effect, Publication | CN202511490884.8 | 2025-10-17 | CN121582534A | 2026-02-27 | Zhu Wenxuan, Wen Mingcheng, Wang Yanting, Hao Rong, Ma Da, Yu Wenyao, Jiang Shiyao, Li Chuan, Cui Jieruo, Ma Yiming | | 5 | A Route Planning Method and System Based on Global Node Networks | Invention Patent | Substantive Examination Effect, Publication | CN202511452218.5 | 2025-10-11 | CN121615889A | 2026-03-06 | Lai Jiawei, Yuan Meng, Zhou Zhiquan, Zhong Jiajun, Wu Jie, Lin Fengshou, Lin Yiwen, Wu Na, Ge Zhonghui, Lin Xinru | | 6 | A Ship Route Extraction Method and System Based on AIS Data | Invention Patent | Substantive Examination Effect, Publication | CN202511413500.2 | 2025-09-29 | CN121384014A | 2026-01-23 | Yang Tao, Yuan Meng, Wu Jie, Zhou Zhiquan, Lin Fengshou, Lai Jiawei, Zhong Jiajun, Xu Bin, Yang Wei, Wu Na | | 7 | A Smart Prediction Method for Ship Speed Based on Multi-Source Data Fusion and Machine Learning | Invention Patent | Substantive Examination Effect, Publication | CN202511386445.2 | 2025-09-26 | CN121302190A | 2026-01-09 | Lu Huidong, Gou Yingchao, Chen Min, Wang Min | | 8 | An Automatic Expansion System and Method for Cloud Host Storage Based on Hybrid Multi-Cloud Scenarios | Invention Patent | Substantive Examination Effect, Publication | CN202511241407.8 | 2025-09-01 | CN121116194A | 2025-12-12 | Wang Junxiang | | 9 | An Automatic Parsing Tool for Ship Spare Parts Inquiry and Quotation Emails | Invention Patent | Substantive Examination Effect, Publication | CN202511229794.3 | 2025-08-29 | CN121119996A | 2025-12-12 | Gu Chun, Du Shouzhi, Yang Wei, Feng Xiaoxiang, Li Liuyang, Geng Kejin, Xiong Hongsheng | | 10 | A Port Docking Probability Prediction Method and System | Invention Patent | Substantive Examination Effect, Publication | CN202511225022.2 | 2025-08-29 | CN121436232A | 2026-01-30 | Zhou Zhiquan, Ge Zhonghui, Lin Xinru, Yuan Meng, Yang Tao, Lai Jiawei, Lin Yiwen, Wu Na, Zhong Jiajun, Xu Bin | | 11 | A Ship Typhoon Avoidance Behavior Recognition and Prediction Method and System | Invention Patent | Publication | CN202511104604.5 | 2025-08-07 | CN120998066A | 2025-11-21 | Sun Xinyi, Liu Xinxin, Sun Yangyuan, Duan Junli, Wang Jiayi, Tu Enmei, Wang Shaohan, Chen Shuhang | | 12 | A Risk Vendor Identification and Early Warning Method Based on SAP Procurement Management System | Invention Patent | Publication | CN202511075005.5 | 2025-07-31 | CN120975795A | 2025-11-18 | Tuo Lei, Fan Jiaming, Zhang Lixin | | 13 | A Graphical Display Method and System for Port Monitoring Indicators | Invention Patent | Publication | CN202511053449.9 | 2025-07-29 | CN120952573A | 2025-11-14 | Shi Zhaoyan, Tu Yidong, Min Zhirun | | 14 | A Ship Classification and Prediction Method and System Based on Cosine Similarity Optimization | Invention Patent | Substantive Examination Effect, Publication | CN202511035625.6 | 2025-07-25 | CN120804915A | 2025-10-17 | Chen Min, Han Yi, Wang Shaohan, Qiu Yang | | 15 | A Traffic Optimization Method and System for Offline Data Transmission between Ship and Shore in a Restricted Network | Invention Patent | Publication | CN202511032408.1 | 2025-07-25 | CN121000677A | 2025-11-21 | Lin Yiwen, Liu Jun, Yuan Bin | | 16 | A Method for Predicting Automated Terminal Operation Delay Propagation Integrating Anomaly Perception and Transfer Entropy Analysis | Invention Patent | Substantive Examination Effect, Publication | CN202511017088.2 | 2025-07-22 | CN120912091A | 2025-11-07 | Liu Yuanzhe, Guo Xinyu, Han Yi | | 17 | A Stability Index Management System for the Container Mark Production Process | Invention Patent | Substantive Examination Effect, Publication | CN202510991856.8 | 2025-07-18 | CN121146240A | 2025-12-16 | Hu Yajing, Yu Lei, Tang Zhihua, Zhou Zhengqiang, Li Zhoupai, Huang Wen, Qiu Chuanyan, Li Zilong, Yan Xinbao, Zhao Puhai | | 18 | A Power Regulation Method and System for High-Power CPE | Invention Patent | Substantive Examination Effect, Publication | CN202510981747.8 | 2025-07-16 | CN120640388A | 2025-09-12 | Zhao Xianming, Yang Lei, Yu Cunlin, Zhang Chongyang, Li Bin, Yang Huiting, Dou Xinglin, Li Hongxing, Sun Shikai | | 19 | A Signal Enhancement Coverage Method and System Based on CRS Re-transmission Technology | Invention Patent | Substantive Examination Effect, Publication | CN202510959665.3 | 2025-07-11 | CN120729490A | 2025-09-30 | Zhao Xianming, Yang Lei, Yu Cunlin, Zhang Chongyang, Li Bin, Yang Huiting, Dou Xinglin, Li Hongxing, Qi Yuqian | | 20 | A Ship Destination Port Prediction Method and System Based on Deep Learning Models | Invention Patent | Publication | CN202510895115.X | 2025-06-30 | CN120782053A | 2025-10-14 | Chen Shuhang, Tu Enmei | | 21 | A Vehicle Queue Control Method, Device, and System Integrating ETC and Self-Service Robots | Invention Patent | Publication | CN202510815370.9 | 2025-06-18 | CN120673491A | 2025-09-19 | Xiang Kai, Li Chengwei, Tang Zhifeng | | 22 | A Tunnel Monitoring Emergency System and Method Based on Interpolation Algorithm and Binary Search Algorithm | Invention Patent | Publication | CN202510810943.9 | 2025-06-17 | CN120673555A | 2025-09-19 | Tang Chaoyong, Jia Baiqiang, Hu Chaoran, Li Xiaojun | | 23 | A Port and Route Network Vulnerability Method Based on Dynamic Attack Assessment Complex Networks | Invention Patent | Substantive Examination Effect, Publication | CN202510787594.3 | 2025-06-13 | CN120658450A | 2025-09-16 | Duan Junli, Han Yi, Liu Mingzheng | | 24 | An Intelligent Ship Repair Quotation Method and System Based on Multi-Modal Analysis and Large Language Models | Invention Patent | Substantive Examination Effect, Publication | CN202510791204.X | 2025-06-13 | CN120707226A | 2025-09-26 | Lu Yanhui, Wang Ani, Chen Junfeng, Ma Yuxian, Fu Guobao, Huang Bing, Huang Honglin, Zhang Chao, Zhu Yiping, Zhang Chengguang, Lü Xuesong, Zhao Gang, Zhou Chuanjun, Li Rong, Xing Minze | | 25 | A Ship Port Departure Detection Method and System Based on Supervised Machine Learning | Invention Patent | Publication | CN202510781823.0 | 2025-06-12 | CN120670777A | 2025-09-19 | Sun Yangyuan, Tu Enmei | | 26 | A Method for Automatically Detecting Hovering Behavior in Ship AIS Trajectories | Invention Patent | Substantive Examination Effect, Publication | CN202510739646.X | 2025-06-04 | CN120632656A | 2025-09-12 | Tu Enmei, Xie Zhaye, Fu Xianping | | 27 | A Method and System for Discovering Traffic Anomaly Data Based on Real-Time Big Data Analysis | Invention Patent | Substantive Examination Effect, Publication | CN202510704393.2 | 2025-05-28 | CN120388472A | 2025-07-29 | Huang Xiang, Li Chengwei, Liu Jiandong, Xie Zhoumo | | 28 | A Method and System for Cross-System Data Quality Checks | Invention Patent | Substantive Examination Effect, Publication | CN202510704402.8 | 2025-05-28 | CN120596472A | 2025-09-05 | Wang Min, Wei Yonglai, Liao Qian | | 29 | An Improved Ship Target Ranging Method and System | Invention Patent | Substantive Examination Effect, Publication | CN202510677325.1 | 2025-05-23 | CN120635186A | 2025-09-12 | Yu Yanling, Xu Lingjie | | 30 | A Chemical Safety Transport Visualization Monitoring Method and Platform | Invention Patent | Substantive Examination Effect, Publication | CN202510677210.2 | 2025-05-23 | CN120634411A | 2025-09-12 | Huang Wei, Zhao Renhong, Fu Guobao | | 31 | A Technology Innovation Project Management System for Group Enterprises | Invention Patent | Substantive Examination Effect, Publication | CN202510637403.5 | 2025-05-16 | CN120543108A | 2025-08-26 | Song Xingyun, Zhu Yaoyu | | 32 | A Method for Predicting Port Congestion Status Based on ASTGCN Model | Invention Patent | Substantive Examination Effect, Publication | CN202510616657.9 | 2025-05-13 | CN120542629A | 2025-08-26 | Liu Xinxin, Chen Shuhang, Han Yi, Tu Enmei, Shang Zandi, Ye Jinsong, Liu Han | | 33 | An Intelligent Induction System and Method Based on Ramp Free Flow | Invention Patent | Substantive Examination Effect, Publication | CN202510577469.X | 2025-04-30 | CN120452213A | 2025-08-08 | Wang Qishi, Tang Dongdong, Cheng Zhen | | 34 | An Intelligent Interaction System and Method for Shipping Big Data Based on Model Context Protocol | Invention Patent | Substantive Examination Effect, Publication | CN202510559042.7 | 2025-04-29 | CN120378501A | 2025-07-25 | Huang Nan, Zhang Chi, Wang Xiangyu, Shao Yuqi, Hu Pinghua, Li Chen | | 35 | A Container Sales Management Method and System | Invention Patent | Substantive Examination Effect, Publication | CN202510548818.5 | 2025-04-27 | CN120410683A | 2025-08-01 | Ma Tingting, Fu Youlue, Fu Guobao, Li Han, Li Rong, Luo Yang, Zhang Tongfei, Lou Gaoming, Hong Kunpei, Huang Fangming | | 36 | A Customer Relationship Management Method and System for the Container Leasing Industry | Invention Patent | Substantive Examination Effect, Publication | CN202510548263.4 | 2025-04-27 | CN120410540A | 2025-08-01 | Ma Tingting, Fu Youlue, Fu Guobao, Huang Fangming, Hong Kunpei, Li Han, Li Rong, Luo Yang, Zhang Tongfei, Lou Gaoming | | 37 | A Workflow Design Method and System Based on Raphael | Invention Patent | Substantive Examination Effect, Publication | CN202510522719.X | 2025-04-23 | CN120492102A | 2025-08-15 | Xia Huaiting | | 38 | An RAG Enhanced Text-to-SQL Query Method and System for Large-Scale Database Environments | Invention Patent | Substantive Examination Effect, Publication | CN202510469341.1 | 2025-04-14 | CN120492494A | 2025-08-15 | Wang Kedi, Zhang Zijian, Qiu Yang | | 39 | A Ship Assistance Berthing and Departing Method and System Based on Electronic Charts and AIS | Invention Patent | Substantive Examination Effect, Publication | CN202510450374.1 | 2025-04-10 | CN120213046A | 2025-06-27 | Tan Zhonghui, Liu Jun, Zhao Yunfei | | 40 | A Ship Assistance Berthing and Departing Method and System Based on AIS | Invention Patent | Substantive Examination Effect, Substantive Examination Effect, Publication | CN202510423798.9 | 2025-04-03 | CN120348430A | 2025-07-22 | Tan Zhonghui, Liu Jun, Bao He | | 41 | A Calculation Method for the Minimum Cost Path of High-Speed Roads Based on Graph Automatic Partition Technology | Invention Patent | Substantive Examination Effect, Publication | CN202510412208.2 | 2025-04-02 | CN120279706A | 2025-07-08 | Li Changliang, Li Yuanpeng, Zhou Gang | | 42 | A Safety Equipment Wearing Target Detection Method and System Based on YOLOv5s | Invention Patent | Substantive Examination Effect, Publication | CN202510401619.1 | 2025-03-31 | CN120340029A | 2025-07-18 | Han Zhuocheng | | 43 | A Method and System for Optimizing Ship Sailing Speed Based on Standard Routes | Invention Patent | Authorized, Publication | CN202510384916.X | 2025-03-28 | CN120317112B | 2025-10-31 | Yang Wei, Lin Yiwen, Ge Zhonghui, Lin Xinru | | 44 | A Ship Climate Route Planning Method and System Based on Graph Theory | Invention Patent | Substantive Examination Effect, Publication | CN202510382810.6 | 2025-03-27 | CN120333438A | 2025-07-18 | Wang Xiangyu, Wang Shaohan, Han Yi | | 45 | A Target Detection Model Experiment Assistant System Based on Natural Language Processing | Invention Patent | Substantive Examination Effect, Publication | CN202510355958.0 | 2025-03-24 | CN120335652A | 2025-07-18 | Zhang Zijian, Wang Xiangyu, Wang Shaohan | | 46 | A Bulk Cargo Market Ship-Cargo Matching Method and System Based on Multi-Objective Constraints | Invention Patent | Substantive Examination Effect, Publication | CN202510350021.4 | 2025-03-21 | CN120338331A | 2025-07-18 | Ren Feiyang, Wang Shaohan, Han Yi | | 47 | An AI Knowledge Q&A System for the Container Leasing Industry | Invention Patent | Substantive Examination Effect, Publication | CN202510331855.0 | 2025-03-19 | CN120234391A | 2025-07-01 | Fu Youlue, Bai Run, Huang Fangming, Zhang Yaoyan, Gu Chun, Liu Yishu | | 48 | An Intelligent Route Planning Method Based on Deep 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