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In the recent years, the Yangtze River shipping has been developed rapidly, but the bridge constructions worsen the navigation environment and became some blocks in the navigation. This research selects the waterway of the Wuhan Yangtze River Bridge area as the research object, which is the traffic bottleneck in the middle reaches of the Yangtze River because the bridge has 8 piers in the river. In...
In the lower reaches of the Yangtze River, collision is the major type of maritime accidents. The prediction of the collision incident level is significant for reducing the loss of lives and property, decreasing the probability of accidents and assuring the maritime safety. The lower reaches of the Yangtze River is taken as a case. 218 ship collisions accidents happened in 2013 are selected for the...
With the increasing amount of Automatic Identification System, AIS data, an effective analysis method and technology for large-scale data are a challenge. Information visualization is a suitable technology for people without professional data mining knowledge, such as navigation managers and ship drivers, for understanding mass AIS data. We implement direct and summary visualization of AIS information...
Through the analysis of vessel track, the characteristics of traffic flow can be well obtained, and waterway traffic safety can be ensured. In order to restore inland water vessel track which is more consistent with real one, noise in the AIS information is supposed to be removed. This paper presents a denoising method of inland vessel track which consists of three basic steps. Firstly, the points...
Inland ship navigation status monitoring system plays an important role in the prevention and reduction of inland ship accident as well as navigation security. The system has functions of ship status data collection and recording, status monitoring and alarming. The hardware and software of the system are designed and the feasibility of the system is discussed. The hardware part of the system achieves...
Based on Automatic Identification System (AIS) information, the existing vessel track is combined by linking the two adjacent points. The linked track is very different from the real track of the vessel. So a fitting method is needed for restoring the real track vividly. AIS information is processed when the vessel is stand-on and turning by Piecewise Linear Interpolation, Piecewise Cubic Interpolation...
Due to interferences and some other reasons, the GNSS(global navigation satellite system) module in AIS would provide fault information, it is difficult to distinguish whether is the vessels are stopping or low-speed sailing without the help of Kalman filter algorithm. This paper has proposed a method to handle the error in GNSS information in AIS messages, which turns out to be effective in the experiment.
In order to guarantee the safety of the grain storage, we need to evaluate storage safety status in time, this paper has proposed two layers data fusion system based on current multi-sensors grain storage monitoring system to identify and guarantee the safety of the storage. The first layer is designed to make data extraction and encode, the second layer is applied with ANFIS. The results show that...
The increasing complexity of today's system-on-a-chip (SoC) design is challenging the design engineers to evaluate the system performance and explore the design space. Electronic system-level (ESL) design methodology is of great help for attacking the challenges in recent years. In this paper, we present a system-level architecture refinement flow and implement a dual DSP cores virtual system based-on...
The trend towards heterogeneous multi-core integration and higher communication bandwidth drastically increases the complexity of the SoC. Architecture design and system validation become extremely challenging. This paper presents a system-level virtual platform and simulation environment for multi-core system performance profiling and evaluation. At the higher level of abstraction, we implement a...
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