Mobile Paver Feeder Assembly for Automated Solar Ballast Placement
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Solution Overview
Problem
The existing manual placement process for concrete ballast blocks in large-scale solar photovoltaic (PV) module installations is inefficient and labor-intensive, necessitating a need for automated deployment systems to enhance installation efficiency.
Innovation Solution
An automated paver feeder assembly mounted on a mobile unit that deploys concrete pavers into mounting tubs, utilizing a support structure, elevator, and restraining mechanism to facilitate precise and efficient placement, with the ability to refill when empty, allowing for automated installation of concrete ballast blocks in large-scale PV power plants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual placement process is used for concrete ballast blocks, then installation can be performed with simple equipment, but installation efficiency is low and labor intensity is high
Solution Approach 1:
The system divides the installation task into discrete units by picking and placing individual pavers one at a time. The paver stack is segmented into single-unit portions that can be independently handled by the robotic arm, enabling automated high-speed installation without requiring complex bulk handling mechanisms
Solution Approach 2:
The system employs vision guidance and automated control to perform the installation task autonomously. The robotic arm with gripper automatically picks pavers from the stack and places them into position without human intervention, while the control system self-regulates the picking and placing operations based on vision system feedback
Solution Approach 3:
The mobile robotic platform integrates multiple functions including navigation to installation locations, vision-based positioning, automated paver picking, precise placement, and stack management. This multi-functional system replaces multiple separate operations (manual picking, carrying, positioning, and placing) with a single automated unit
2Productivity
If automated paver deployment is implemented, then installation speed increases and labor is reduced, but system complexity and initial investment increase
Solution Approach 1:
The system uses a mobile robotic arm that can dynamically position itself and adjust its movements based on the installation location and paver stack position. The robotic arm's degrees of freedom allow it to adapt to different tub positions and orientations, enabling fast automated installation across varied site conditions without requiring a completely different system for each location
Solution Approach 2:
The system replaces manual human labor with an automated robotic system that uses computer vision and automated control algorithms instead of human perception and decision-making. The robotic arm with specialized gripper replaces manual picking and placing actions, achieving higher speeds and consistency while reducing long-term operational costs despite higher initial complexity
3Manufacturing precision
If precise placement of pavers is ensured, then installation quality is improved, but placement time may increase
Solution Approach 1:
The vision system captures images of the paver stack and installation location in advance, allowing the control system to plan the optimal picking and placing trajectory before actual execution. The system pre-positions the robotic arm and pre-calculates placement coordinates based on vision data, enabling precise placement without time-consuming adjustments during the actual placement operation
Solution Approach 2:
The vision system provides real-time feedback on the position of the paver stack and the location of mounting tubs, allowing the control system to continuously adjust the robotic arm's movements for precise placement. The system uses this feedback to compensate for any deviations in stack position or tub location, ensuring accurate placement while maintaining high speed through automated correction rather than manual measurement
Data Source
AI summary
Paver feeder assemblies, systems, and methods for use in mounting photovoltaic modules are provided which comprise a support structure and an elevator. The support structure is configured to support a plurality of pavers arranged in a stack. The elevator is configured to move the single paver from the support structure and to release the single paver into a mounting tub. The elevator may be a crane gantry configured to move in three axes. A restraining mechanism may be provided, which is configured to separate a single paver from the stack. The elevator may be a shelf assembly comprising one or more side restraints and one or more grippers configured to grasp a single paver and move from a start position adjacent to the support structure to lower the single paver to an end position directly above a floor of a mounting tub. The paver feeder assembly may be mounted on a mobile unit that is loaded with pavers at a staging area and moved to a dispensing area where mounting tubs are located.