Research Of All-weather Posture Detection And Security Protection Technology For Ships

In recent years, with the rapid development of international trade, global shipping capacity has become strained, and the demand of shipbuilding has intensively growed. The shipbuilding industry of China has also been booming, and has become one of the world's major centers. However, The China's market share about electronic equipment of ships is very low. The ship's core mission of electronic equipment is the safe navigation. It mainly relies on navigation equipment, surveillance equipment, safety traffic management systems and so on. Nowadays the existing Vessel Traffic Management Systems includes Automatic Radar Plotting Aid, Automatic Identification System, Global Positioning System and Electronic Chart Display and Information System, which greatly improved the quality of safe navigation for ships. But Due to their limitation, these VTMS also have many deficiencies in actual application.Based on the requirements of security defending for ships, this thesis makes a great effort to study modern electronic technology and computer vision technology which can be used to improve the traditional Vessel Traffic Management Systems, and remedy their deficiencies. Also this thesis use CCD camera and night vision camera for all-weather surveillance by the way of alternating them. Night vision camera can be used under low visibility at night or other adverse weather conditions, and CCD camera should be switched in normal circumstance during the day.Firstly, the paper analyzes relevant technology about ship security protection at home and abroad, then makes a profound analysis on principle of posture detection and image process.At last adopts OMAP3530 development platform and extends the ship posture detection subsystem and video signal acquisition subsystem which are depending on the detailed design requirements. With these function subsystems, the issure realizes the function that automatic detecting, tracking and recognizing invasion ships. In order to better manage the vessel safety traffic function, this subject also designs a friendly User Interface by Qt4.6 which is designed with the traditional magnetic compass style.This thesis build a powerful embedded software and hardware for security of ships, thus to realize some basic security defending function and design a frendly User Interface. These designs provide valuable reference for research and better prospect in industry application.