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The main purpose to push the development towards autonomous maritime operations in shipping and offshore installations, is to increase the performance of maritime activities; by social benefits for staff or other related personal groups; by economic benefits when the ability to increase the cargo or effectuate better space allocation; by environmental benefits that's allow the ship operations to be...
We present a novel design of an intelligent robotic hospital bed, named Flexbed, with autonomous navigation ability. The robotic bed is developed for fast and safe transportation of critical neurosurgery patients without changing beds. Flexbed is more efficient and safe during the transportation process comparing to the conventional hospital beds. Flexbed is able to avoid en-route obstacles with an...
This paper presents recent findings in maritime trajectory pattern and anomaly detection using long-term data collected via a shore-based network of Automatic Identification System (AIS). Since the establishment of the AIS network around Taiwan in 2009, the accumulated massive vessel trajectories have been extensively explored under a series of government research projects. The project themes include...
This paper uses the data provided by AIS as the sources of information and combines the actual needs for ship collision avoidance perception. Considering the major factor for ship collision impact, a mathematical model of risk evaluation is established for embedded system, and a new design of AIS-based embedded system for ship collision avoidance is proposed. By utilizing an ARM platform, the system...
To ensure the safety of ships passing access channel of port, and improve the transport efficiency of the channel, ship safe speed control model is presented by analyzing influence factors. The model fully considers the channel dimensions, natural environment and ship maneuverability that impact on the ship safe speed. Finally a case study is given by combining with the specific channel and taking...
The water transportation plays an important role in the world recently. However, the maritime accidents are attracting public attention. The way to improve safety of navigation has become a prior task for the operations. The trajectory is useful to analyze the features of the traffic flow and helpful to simulate traffic flows. Therefore, to explore the law of navigation in curving waterway and the...
As for the current water traffic safety in Wuhan waters, we make use of the cloud model to assess it respectively from the aspects of human factors, hard conditions, policies and regulations, environmental factors. Firstly, build the system of the assessment levels and the navigational safety factors' set; then analysis each factor with the method of Analytic Hierarchy Process (AHP) by taking advantage...
The waterway regulation in Jingzhou has been implemented since 2013, the south branch of the waterway in the Jingzhou Yangtze River Bridge was open as a temporary channel for engineering ships. Based on the utilization of the waterway, this work analyses the navigational efficiency improving measures by using the queuing theory. According to the dynamic calculating feature of the used theory, the...
Maritime patrol and environmental monitoring tasks, and so on, had attracted the attention of the maritime authorities by USV which instead of some traditional vessels by men control. According to the requirements of the development of the USV and its experimental inconvenience, setting up model ship experiment platform in the service of USV experiments demand, making model ship as its carrier, and...
Research on the waterway traffic flow modelling has been widely used in the formulation of waterway transportation regulations, navigation risk assessment, vessel traffic monitoring and organization. The fluency of one-way waterway transportation is proposed in this paper. By using the model, a simulation system is constructed on the basis of First Come First Served (FCFS) model. Monte Carlo simulations...
The safety of navigation of ro-ro passenger ships has been perplexing the shipping circles, while the problem of vehicle safe stowing and securing is an important factor that affects the safe transportation of ro-ro passenger ships. Some specifications are put forward in home and abroad on the research of safe stowing and securing of vehicle on board ro-ro passenger ships. However, it is lacking in...
By analyzing the requirements of Changjiang River water traffic safety management information platform, to determine the system's end-users and intermediate users, and define customer services to connect the user's needs and functions of the platform. Based on summing up the needs of the participants, ultimately define five function modules for the platform and build the logical framework and physical...
By analyzing the module and concrete items of risks in ship pilotage, applying Grey theory analysis, brings forward the Grey Theory Analysis Model in ship pilotage risks analysis, Moreover, fuzzy function is taken in the analysis of relative risk factors, achieving the optimal relational coefficient of piloting risk factors, and finally obtaining the relational degree taxis. As indicated in the computing...
This paper describes a well-designed and calibrated simulation model to solve the design of Ships' routeing system which provide useful insights about complex maritime transportation routes. Real data from shanghai port Vessel Traffic Services Center (VTS) are used as input for evaluating four traffic policies. The simulation model mainly focuses on the transit traffic in the channel. This study provides...
Based on a thorough investigation of the pilotage accidents in Shanghai harbour during last 13 years and other effective ways for getting the information about the dangers of the pilotage, the pilotage risks in various navigating areas of Shanghai harbour are presented. Through the analysis of the practical traffic situation and assessment of the pilotage risks, the detailed proposals and systematic...
To investigate the safety of route flight in air traffic management, the collision risk is evaluated with the fuzzy sets theory. The new fuzzy evaluation method shows how the communication, navigation, surveillance, operation error, and traffic density influence the risk of collision in the parallel routes. The results demonstrate that fuzzy evaluation not only fulfill the safety assessment of separation...
Traffic congestion on major roadways costs our nation billions of dollars in lost earnings, wasted fuel consumption, injury and loss of human life. Providing motorists with real time roadway conditions is essential to mitigating traffic congestion. We propose a novel real-time messaging system that can be used to communicate imminent traffic conditions to motorists. Having such information can allow...
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