The invention provides a flight path planning
system, which comprises a planning management module, and the planning management module is in communication connection with a flight
control system and a task
system through the
Ethernet. The planning management module is configured to receive planning input data of the task
system, the planning input data comprises design constraints of a starting point, an end point, a
threat area and an aircraft, and the design constraints comprise a maximum
turning angle and a maximum climbing angle; based on design constraints, a search area is constrained in the path
planning process, a horizontal search area is limited based on the maximum
turning angle, and a
vertical search area is limited based on the maximum climbing angle; in the searching process, the
threat degree is calculated for the
threat area, extension nodes are selected based on evaluation functions, and the evaluation functions comprise the node distance, the
turning angle, the climbing angle and the threat degree; and generating a track from the starting point to the ending point and sending the track to a flight
control system. According to the method, the safe and feasible flight path is quickly generated through constraint search areas and comprehensive evaluation.