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Mobile robots use several sensors to obtain information about the surrounding environment and perform its mission. In general, when an operator controls this robot remotely, the situation around robot should be recognized only by the transmitted information from it. However, it is hard to operate it easily without collision using the limited information transmitted from it. If the robot have its autonomy...
Robots' continuous physical behaviors are controlled by discrete instructions generated using complicated control algorithms. In such a robotic hybrid system, guaranteeing robot's navigation safety can be more challenging than those discrete controls alone or only the continuous robot motions. For a robotic system operating in the real world, navigation safety is critical in order to avoid potential...
Wireless sensor networks can play an important role in detecting disasters and navigating the personnel out of dangerous areas. In emergency navigation applications, personal safety and evacuation time of human beings are commonly considered criteria. Consequently, existing works mainly focus on finding the shortest safe path for each person. However, in practice, the number of people may be much...
An automated method for sea route design based on electronic chart is developed to improve the security and reliability of planned sea route. First, the obstacle projection matrix is built based on the environmental information provided by electronic chart. Then a basic path is built quickly by using the adjacent relation among girds. Finally, elastic algorithm was used to optimize the basic path...
We propose a novel boundary-following algorithm that works in conjunction with any potential function that is guaranteed to take the robot to the target. The potential field must not have any local minima but is not required to avoid moving too closely to the boundary. The proposed method has several advantages: a) The calculation of the C-space is avoided, which can be costly especially if the robot...
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