Ship track data fusion method based on LSTM model

Abstract

The invention provides a ship track data fusion method based on a LSTM model. The ship track data fusion method based on the LSTM model comprises the following steps: collecting ship navigation trackscollected by an AIS system, a shipborne radar and a high-precision GPS in one navigation as historical data, and collecting dynamic latitude and longitude coordinate information of the ship during anavigation process through the AIS system, and collecting dynamic image coordinate information of the ship during the navigation process through the shipborne radar, so as to be used as data to be trained; performing normalization on the radar latitude and longitude coordinate information, the AIS coordinate information and the high-precision GPS latitude and longitude coordinate information separately; grouping the normalized ship navigation track coordinate information collected by the shipborne radar, the AIS system and the high-precision GPS to obtain grouped coordinate information; and performing primary training on the LSTM model with the normalized and the grouped radar and AIS coordinate information as a training set, and then adjusting weighting parameters of the LSTM model usingthe grouped and normalized high-precision GPS coordinate information. The invention has the advantage of improving the accuracy of ship track fusion.

Description

technical field [0001] The invention relates to the field of ship information perception and fusion, in particular to a ship track data fusion method based on an LSTM model. Background technique [0002] The world has entered the development period of "Industry 4.0", and made a key explanation on high-tech ships and ship intelligent manufacturing. Nowadays, with the rapid economic development and the rapid development of marine ships in the direction of technology and speed, the number of ships, especially the number of ships transporting dangerous goods, is increasing, and the density of ships is increasing. The above reasons directly lead to a sharp increase in safety hazards in maritime traffic. Occurs frequently, which not only makes life and property suffer a major threat, but also causes environmental pollution of the ocean to a large extent. In order to ensure the safety of maritime navigation and improve the efficiency of shipping management, the requirements for co...

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Problems solved by technology

However, AIS also has shortcomings. Since the device is characterized by passively receiving information, it cannot actively obtain specific target information; the ship position provided by AIS is only a coordinate point, and it cannot obtain target video information and surrounding environment information.

[0004] Therefore, AIS cannot be used as the only navigation and collision avoidance equipment during navigation

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