Time-critical Trajectory Planning for a Car-like Robot in Unknown Environments

This paper presents a trajectory planning and real-time control of a nonholonomic mobile robot in a static environment. The trajectory is generated based on a geometric approach for a nonholonomic mobile robot. The trajectory is time-critical which the mobile robot is expected to reach the final point at the specified travelling time. This approach may have a significant ramification on the task-based applications, which require the robot to pass through all the control points in a specified time such as a large area patrol and goods delivery. In order to have a remote control on the mobile robot, it was equipped with a wireless communication. The algorithm is then being tested in the static environment and the results from the experimental works are compared with the results from the simulation works. The mobile robot that was used in the experimental works was adapted from a car-like robot.