Meituan has been granted a patent for a trajectory planning method that optimizes the path of an unmanned device by determining constraint boundaries based on the velocities of the device and surrounding obstacles. This ensures a convex solution space for effective trajectory adjustments. GlobalData’s report on Meituan gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Meituan, was a key innovation area identified from patents. Meituan's grant share as of June 2024 was 42%. Grant share is based on the ratio of number of grants to total number of patents.
Trajectory planning method for unmanned devices and obstacles
The patent US12019447B2 outlines a method for trajectory planning that focuses on the interaction between a target device and designated obstacles. The method begins by determining a preliminary reference trajectory point for the target device and predicting trajectory points for obstacles at a specific moment. For each designated obstacle, a constraint boundary is established based on the velocities of both the target device and the obstacle. This boundary effectively divides the space into two distinct areas, ensuring that the target device and the obstacle do not occupy the same space. The method further involves adjusting the preliminary trajectory of the target device within the constraints defined by these boundaries, allowing for dynamic navigation in environments with moving obstacles.
Additionally, the method includes steps for selecting designated obstacles based on their proximity to the target device and determining initial constraint sets. It employs a systematic approach to assess the relative velocities and distances between the target device and obstacles, which informs the selection of appropriate constraint boundaries. The process also incorporates a taboo list mechanism to avoid conflicts between designated obstacles during trajectory planning. This comprehensive approach enables the target device to adapt its trajectory in real-time, ensuring safe navigation while considering the movements of surrounding obstacles. The patent also describes the implementation of this method in an unmanned device, highlighting its potential applications in autonomous systems.
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