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Comparison of the Applied of Car Navigation System and Developed Marine Navigational System

Shiotani S., Liu X.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2014

Vol. 8, no. 1

27--32

A watch officer in sailing a ship uses many kinds of navigational information to prevent marine disasters. Especially in coastal sea area such as narrow bay or port, many ships crowds and marine disasters tend to occur more often. In these regions, effective presentation of variety navigational information is very important. On other hand, a car navigation is very effective in road traffic, However, it is not used almost in sea traffic. Our objective in this paper is to apply a car navigation to ship sailing. Also, a marine navigation system proposed by us was compared with a car navigation system. In this study, authors tried some ways of utilizing car navigation technology for the sea. To improve navigational security and safety, we investigated whether car navigation systems could be applied to marine traffic. The applicability was evaluated through several comparisons of our navigation assistance device using GIS.

Client-server Approach in the Navigation System for the Blind

Markiewicz Ł., Drypczewski K., Wiśniewski B., Kamiński Ł.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2013

Vol. 7, no. 3

395--400

The article presents the client-server approach in the navigation system for the blind - “Voice Maps”. The authors were among the main creators of the prototype and currently the commercialization phase is being finished. In the implemented prototype only exemplary, limited spatial data were used, therefore they could be stored and analyzed (for pathfinding process) in the mobile device’s memory without any difficulties. The resulting increase of spatial data scale and complexity required a modification of the data storage and operation. Consequently, the decision was made to maintain a central spatial database, which is accessed remotely. After that modification, the mobile application fetches the required batch of spatial data (with the pathfinding and search results) from the central server through the mobile internet connection, which has also become necessary for other purposes (e.g. voice recognition). The authors present the advantages and disadvantages of this new approach along with the results of the server operational tests.