In this paper, we implemented a mobile application of location-based augmented reality that combines self-sensing technology and various safety information using technological advancements of the smartphone. Vessel navigation is a suitable area for augmented reality because it requires accurate knowledge of the distance and location of destinations, danger zones, AtoN, and adjacent vessels. Current smartphone applications only provide 2D images and location information. Such applications do not include information about the surrounding environment, and as a result, they can only function using their own sensing information and surrounding information into a location-based augmented reality. If you provide a variety of sensor information embedded in the smartphone to ‘BadaGO’, the implemented application through this study, ‘BadaGO’ can provide safe navigation information to the user device in real time with a variety of its own formed information. The user has a high practicality and applicability of a small ship that is supplied with safe navigation information in a changing marine environment only by providing information through the application on the smartphone.

Abstract
1. Introduction
2. Safety Navigation Mobile Application
    2.1 Safety Navigation Information provisionScenario
    2.2 Mobile Augmented Reality
    2.3 The System Configuration of AugmentedReality
    2.4 GPS detection and application algorithm
3. Location-based AtoN ApplicationDesign Using Augmented Reality
    3.1 Configuration of Mobile Augmented Reality
    3.2 AR View Module
    3.3 Location Accuracy of Smartphone
    3.4 Gyroscope sensing technology
    3.5 The schematic diagram of Location-basedAugmented Reality Application
    3.6 BadaGO Augmented Reality Application UsingImage Matching
4. Results
5. Conclusion
References

• Joong-Sung Jeon(Engineering Division 2, Anse Technologies Co. Ltd) Corresponding Author