Method for improving AIS position information precision through intelligent mobile terminal

Abstract

The invention discloses a method for improving the AIS position information precision through an intelligent mobile terminal, and belongs to the technical field of inland waterway monitoring. By means of the method for improving the AIS position information precision through the intelligent mobile terminal, the sampling frequency of dynamic ship information can be improved, and the problem that ship positions are lagged in an AIS-based inland waterway monitoring system is solved. The method comprises the following steps that firstly, a ship-mounted AIS sends the static ship data preset by the ship-mounted AIS and the dynamic ship-mounted data acquired by a GPS to an AIS receiver of a data center according to a protocol, and the intelligent mobile terminal sends the identification information of the intelligent mobile terminal and the dynamic information acquired by the intelligent mobile terminal to a data center server; secondly, the data center determines whether the intelligent mobile terminal corresponds to a registered ship or not and whether the intelligent mobile terminal and the registered ship are located at the same position; thirdly, the data center fuses the AIS information sent by the same ship and the information of the intelligent mobile terminal by comparing identification; fourthly, the data center generates high-precision position information.

Description

technical field [0001] The invention belongs to the technical field of inland waterway monitoring, and in particular relates to a method for improving the accuracy of AIS position information. Background technique [0002] The Automatic Identification System (AIS system for short) is composed of shore-based (base station) facilities and ship-borne equipment. It is a new type of network technology, modern communication technology, computer technology, and electronic information display technology. Digital aids to navigation systems and equipment. Ships equipped with AIS equipment periodically provide three types of data: static data, including ship name, call sign, MMSI, IMO, ship type, length, width, etc.; dynamic data, including longitude, latitude, heading, track direction, and speed etc.; voyage data, including ship status, draft, destination, ETA, etc. The management department can effectively monitor the installation ship based on the above information. The update cy...

AI Technical Summary

Problems solved by technology

[0007] However, the existing technology has the following defects: due to the AIS transmission interval, the ship's position collected by the monitoring system has a large gap with the actual ship's position; due to the special terrain of the channel, the AIS signal is easily lost, resulting in a greater difference between the ship's position collected by the monitoring system and the actual ship's position

Images