Machine Arm Picking with 3D Imaging for Moving Object Timing
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Solution Overview
Problem
Current identification technologies struggle with precise control of object picking and placing on assembly lines due to the speed and complexity of object classification, leading to shifting and movement issues.
Innovation Solution
A system and method that utilizes an imaging device to capture two-dimensional and three-dimensional fused images, calculates object positions and speeds, and controls machine arms to pick and place objects with high precision based on determined attributes and moving speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If current identification technologies are used for object classification on assembly lines, then object classification can be performed, but objects may be shifted and moved due to imprecise picking and placing control
Solution Approach 1:
The patent transitions from traditional 2D image recognition to 3D depth information acquisition using imaging devices. By capturing depth data and spatial coordinates, the system achieves more precise object localization and classification, resolving the contradiction between identification precision and control stability during picking and placing operations
Solution Approach 2:
The system implements real-time feedback by continuously monitoring object positions, depths, and movement speeds through imaging devices. This feedback loop enables dynamic adjustment of picking and placing operations, ensuring precise control while maintaining identification accuracy during assembly line operations
2Productivity
If the assembly line speed increases to improve productivity, then more objects can be processed per unit time, but precise control of picking and placing becomes more difficult
Solution Approach 1:
The system performs preliminary identification and positioning of objects using 3D imaging before the picking operation occurs. By pre-calculating pick points, depth information, and trajectory parameters, the system can execute rapid picking and placing operations at high assembly line speeds while maintaining precision through advance preparation of control parameters
Solution Approach 2:
The system employs dynamic control that adapts to varying assembly line speeds. The imaging devices and control system adjust their sampling rates, exposure times, and processing algorithms in real-time based on the line speed, enabling precise picking and placing whether operating at high or low speeds
3Adaptability or versatility
If object classification complexity increases to handle more object types, then more comprehensive sorting can be achieved, but control of picking and placing becomes more problematic
Solution Approach 1:
The system segments the complex classification task into multiple processing stages: initial object detection, feature extraction, classification, and pick point determination. By dividing the complex classification process into manageable segments, the system can handle diverse object types while maintaining precision in the final picking and placing operations through dedicated processing for each classification stage
Data Source
AI summary
A system and a method for picking and placing objects, includes capturing at least one first image of the object at a first time point and at least one second image at a second time point; identifying the object in the first image and the second image, obtaining first position information, second position information, and object attribute of the object; based on the first position information, the second position information, the first time point, and the second time point, calculating a moving speed of the object; based on the object attribute, determining whether the object is a target object; if so, calculating a target position and a target time point of the target object based on the first and second position information and the moving speed; controlling a target machine arm to move at or to the target position at the target time point to pick the target object.