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Global route thermodynamic diagram generation method and system

A technology for generating system and heat maps, which is applied in the field of shipping and shipping, and can solve problems such as information noise and low resolution

Pending Publication Date: 2022-01-21
CHINA SHIPPING NETWORK TECH
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problems of low resolution and information noise in the prior art, the present invention provides a method for generating a global route heat map. By redesigning the format of the data message and removing redundant information, the efficiency of the data is realized. Transmission, and by directly reading and writing message bytes, without traditional compression / decompression processing, the data processing speed is improved

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  • Global route thermodynamic diagram generation method and system
  • Global route thermodynamic diagram generation method and system
  • Global route thermodynamic diagram generation method and system

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Embodiment Construction

[0030] The present invention will be described below in conjunction with the accompanying drawings.

[0031] The present invention relates to a method for generating a global route heat map, the flow chart of the method is as follows figure 1 As shown, the following steps are included in sequence:

[0032] Data collection steps: collect ship AIS historical voyage data and port data; specifically, based on the route recommendation based on the big data model, the supported platform can be understood as a massive data storage and retrieval platform, which needs to provide massive data samples, and the order of magnitude of the samples can easily increase billions, even billions, and tens of billions, and the traditional relational data storage system cannot meet the requirements of storage, retrieval, and calculation. Therefore, PolarDB, a distributed computing database based on PostgreSQL syntax, is selected to extract the ship AIS historical voyage data from the PolarDB databa...

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Abstract

The invention provides a global route thermodynamic diagram generation method and system. The method comprises the steps of: collecting ship AIS historical navigation data and port data, and removing abnormal data in the AIS historical navigation data; extracting coordinate point information sorted according to time from the cleaned AIS historical navigation data, removing useless coordinate point information, and reserving coordinate point information of key nodes; performing sparse processing on the residual AIS historical navigation data by using an SAS algorithm, and inserting the coordinate point information of the key nodes into a sparse result according to a time sequence to obtain route trajectory data close to reality; finally drawing by adopting a fragment drawing mode according to the restored route trajectory data; after drawing is completed, transmitting the drawn picture back to a main node, which carries out image splicing and completes image drawing. The data preparation time and the data drawing time of route drawing are greatly shortened, and therefore data processing is completed in a shorter time.

Description

technical field [0001] The invention relates to the technical field of ship shipping, in particular to a method and system for generating a global route heat map. Background technique [0002] At present, in the shipping visualization system, the thermal map situation of historical routes will be displayed for reference and analysis. The common practice is to calculate routes based on AIS historical data, comprehensive port information and other auxiliary content, and draw them on electronic charts. [0003] However, there are several problems in this approach: 1. Due to the combined effect of signal collection, transmission, storage and other reasons, AIS usually has some information noise. These information noises have a large deviation from the actual position, which leads to the appearance of the drawn route. Larger deviations lead to loss of accuracy; 2. The original historical data of AIS is very large, and high-performance machines are often used in the drawing proces...

Claims

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Application Information

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IPC IPC(8): G06F16/29G06F16/535G06F16/54G06F16/587G06T11/20G08G3/00
CPCG06F16/29G06F16/535G06F16/54G06F16/587G06T11/206G08G3/00
Inventor 郝轶
Owner CHINA SHIPPING NETWORK TECH
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