Bezier Waypoint Path Planning for Low-Load Target Following
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Solution Overview
Problem
Conventional target-following technologies for autonomous mobile objects face challenges in accurately following a moving target while maintaining low processing load, particularly when the target changes direction suddenly or recognition errors occur.
Innovation Solution
An information processing device and method that sequentially sets path position information (waypoints) near the target, connecting them to create a following path, using predetermined rules based on the target's position and direction, and updates these points as the target moves, thereby reducing processing load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional target-following technology analyzes the direction of movement of the target at high speed to accurately follow a target moving in various directions, then the accuracy of target following is improved, but the processing load increases
Solution Approach 1:
The patent segments the continuous path into discrete waypoints. Instead of continuously analyzing the target's movement direction, the system divides the following path into multiple discrete points (waypoints) that are sequentially connected. This segmentation allows the mobile device to follow the target by moving through predefined points rather than constantly calculating direction, thereby reducing processing load while maintaining following accuracy.
Solution Approach 2:
The patent applies preliminary action by pre-calculating and storing waypoints along the target's path before the mobile device begins following. The waypoints are determined in advance based on the target's movement trajectory, and the mobile device simply needs to navigate to these pre-computed points sequentially. This eliminates the need for real-time direction analysis during following, reducing processing load while ensuring accurate path tracking.
2Device complexity
If the mobile device sequentially connects pieces of path position information to create a following path, then the processing load is reduced, but the accuracy of following the target may be compromised
Solution Approach 1:
The patent applies dynamics by making the waypoint generation process adaptive rather than static. The system dynamically generates waypoints based on the target's current position and movement characteristics, adjusting the number, distribution, and positioning of waypoints according to the target's behavior. This dynamic approach ensures that the simplified waypoint-based path following maintains high accuracy even as the target moves in various directions, while keeping processing load low compared to continuous direction analysis.
Data Source
AI summary
Provided are a device and a method for efficiently creating a following path of the target to be followed by a mobile device to enable reliable follow-up. A movement path creation unit is included that creates a path that is a following path on which a target is to be followed by a mobile device. The movement path creation unit sequentially sets a piece of path position information (waypoint) near the target, and sequentially connects the set pieces of path position information to create the path. The movement path creation unit sets the piece of path position information at a position determined in accordance with a predetermined rule based on a position and a travel direction of the target. When the target has moved a predetermined distance, a new piece of path position information is set.