Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method for judging the time when a ship arrives at a marking line in inland waterway shipping

A technology of time determination and marking lines, which is applied in the direction of ship traffic control, instruments, traffic control systems, etc., can solve the problems of not being able to automatically judge the time when ships arrive at the channel marking lines, reducing the accuracy of predicting ship arrival marking lines, and long time intervals, etc.

Active Publication Date: 2017-06-13
CHONGQING UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the field of inland shipping traffic command, there is no effective method for clearly predicting the time when a ship arrives at the marking line. The traditional method only relies on the signalman to manually observe the ship's position and rely on VHF high-frequency shouting, which cannot automatically judge the time when the ship arrives at the channel marking line. The manual method has a large workload and low efficiency, which can easily lead to missed judgments and misjudgments, which will affect the command and fail to achieve the purpose of intelligent prediction and recording
In addition, the method of using AIS information to determine the time when the ship arrives at the marking line, due to the long time interval for sending the ship's AIS information and the occasional failure to receive the AIS information due to the influence of the special river terrain, greatly reduces the prediction of the arrival of the ship. The accuracy of the line, and the accuracy of the time when the ship passes the marked line

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for judging the time when a ship arrives at a marking line in inland waterway shipping
  • A method for judging the time when a ship arrives at a marking line in inland waterway shipping
  • A method for judging the time when a ship arrives at a marking line in inland waterway shipping

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] figure 1 The black dots shown are the distribution of track points in the main track line, and are numbered starting from 1, and the connecting line between points is the track line;

[0028] figure 2 It is a schematic diagram for judging the position in the track line where the current position of the ship is located. As shown in the figure, after the command system reads the coordinates of all track points, it calculates the distance from the current position of the ship to each track point of the main track line, and sorts them to find the two points corresponding to the two minimum distances. Track point, these two points are the current position of the ship in the controlled river section;

[0029] image 3 Schematic diagram of the distance marked for the ship crossing the limit, d 1 is the distance between the position of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a determination method for the time for reaching a mark line of a ship in inland river navigation, and relates to the technical field of intelligent navigation channel passing command. According to the method, the time for reaching the mark line vertical to a bank line and arranged in an inland river navigation channel in a manual manner can be accurately determined, the defect that the time determination error is large since the interval of message sending time of a shipborne AIS is long, and sometimes AIS information cannot be received due to special terrains is overcome, the precision for determining the time for reaching the mark line of the ship is improved, and the timeliness and accuracy for controlling signal revealing in river passing command are further improved.

Description

technical field [0001] The invention relates to the technical field of intelligent waterway traffic command, and relates to a method for intelligently predicting and determining the time when a ship reaches a marking line. Background technique [0002] At present, in the field of inland shipping traffic command, there is no effective method for clearly predicting the time when a ship arrives at the marking line. The traditional method only relies on the signalman to manually observe the ship's position and rely on VHF high-frequency shouting, which cannot automatically judge the time when the ship arrives at the channel marking line. The manual method has a large workload and low efficiency, which can easily lead to missed judgments and misjudgments, which will affect the command and fail to achieve the purpose of intelligent prediction and recording. In addition, the method of using AIS information to determine the time when the ship arrives at the marking line, due to the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G08G3/00
CPCG08G3/00
Inventor 梁山李永辉龙艾芳毕方全程利林马蠡王德军
Owner CHONGQING UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com