Crane Control System Automates Positioner Sequences
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Solution Overview
Problem
Crane operators face significant demands due to the need for strict adherence to predetermined sequences of control movements and recurring positioning movements into predetermined positions, which can be repetitive and burdensome.
Innovation Solution
A crane control system that receives target position data and clearance data to autonomously control positioners, allowing them to move into predefined target positions without requiring the operator to input specific control commands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the crane operator manually controls each positioner to predetermined positions following strict sequences, then precise positioning control is achieved, but operator burden and fatigue increase significantly
Solution Approach 1:
The control system automatically executes positioning sequences without requiring continuous operator intervention. The system stores predetermined position sequences and executes them autonomously, with the operator only needing to initiate the sequence rather than manually control each positioner movement, thereby reducing operator burden while maintaining positioning precision
Solution Approach 2:
The control system pre-stores positioning sequences and target positions in memory before operation. When a positioning task is initiated, the system retrieves and executes the pre-programmed sequence automatically, eliminating the need for the operator to manually input each control command during execution and significantly reducing operational burden
2Measurement precision
If the crane operator repeatedly performs the same positioning movements for deployment and retraction, then consistent positioning is achieved, but time consumption and operational fatigue increase
Solution Approach 1:
The control system stores multiple positioning sequences for different operational phases (deployment, operation, retraction). The same sequences are repeatedly executed during different deployment cycles, ensuring consistent positioning while reducing the time required for each repetitive operation through automated execution rather than manual control
Solution Approach 2:
Positioning sequences for common operations are pre-programmed and stored in the control system memory. When the same positioning task needs to be performed again, the system retrieves and executes the stored sequence automatically, ensuring consistent results while eliminating the time required for manual re-input of control commands
3Ease of operation
If the crane control system automatically actuates positioners to target positions, then operator burden is reduced, but system complexity increases
Solution Approach 1:
The control system pre-stores positioning sequences and target positions in memory during system setup or initialization. This preliminary programming allows the system to execute complex positioning tasks automatically during operation without requiring complex real-time decision-making logic, thereby reducing operator burden while keeping the control system architecture relatively simple
Solution Approach 2:
The control system creates and stores digital copies of positioning sequences and target positions in memory. These stored copies are then executed automatically during operation, replacing the need for complex real-time control algorithms and reducing both operator burden and the complexity of the control system architecture
Data Source
AI summary
A crane control system for actuating positioners of a crane is configured to receive target position data which describe a predefined target position of at least one positioner, in particular at least one crane superstructure positioner; receive clearance data which describe a user input for clearing a movement of the at least one positioner into the predefined target position; and output control data which describe control signals to be output to the at least one positioner in order to move the at least one positioner into the predefined target position.