Trajectory Planning includes two aspects: For mobile robots, they tend to refer to the path planning of moving. For example, if the robot is in the condition of a map or without a map, what kind of Path trajectory to walk; for industrial robots/manipulators, it means two directions, the curved trajectory of the end of the robotic arm, or the curved contour of the displacement, velocity and acceleration of the operating arm during the movement.
Ляо Д. (науч. рук. Чепинский С.А.) Управление траекторным движением мобильных робототехнических систем // Сборник тезисов докладов конгресса молодых ученых. Электронное издание. – СПб: Университет ИТМО, [2021]. URL: https://kmu.itmo.ru/digests/article/5184