Concrete Placement Boom End Hose Control for Straight-Line TCP Alignment
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Solution Overview
Problem
Existing control methods for the movement of an end hose on a concrete placing boom are complex, requiring experienced operators and do not allow straightforward alignment at the Tool Center Point (TCP), complicating the control process.
Innovation Solution
A control device with a display device at the end hose that indicates a predefined direction of movement, allowing operators to set the speed and direction independently of the boom's position, converting these inputs into control signals for the boom's joints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional control methods are used for end hose movement, then the system can operate with existing control mechanisms, but the control process becomes complex and requires experienced operators
Solution Approach 1:
A display device is introduced as an intermediary between the operator and the complex boom control system. The display device shows simplified visual information about the end hose position and movement direction, translating complex mechanical states into intuitive visual representations that guide less experienced operators through the control process
Solution Approach 2:
The patent replaces complex mechanical control mechanisms with an electronic control system that processes operator inputs through a microprocessor. This electronic system automatically calculates boom joint commands based on simplified user inputs, eliminating the need for operators to manually coordinate multiple mechanical controls
2Manufacturing precision
If the end hose is controlled along a straight line not intersecting the slewing mechanism, then precise positioning is achieved, but it requires superimposing several movements and experienced operator skill
Solution Approach 1:
The display device provides real-time visual feedback to the operator about the end hose position, movement direction, and boom configuration. This feedback loop allows less experienced operators to intuitively control precise positioning by observing the visual representation and adjusting their inputs accordingly, eliminating the need for complex manual coordination
Solution Approach 2:
The control system segments the complex end hose positioning task into simpler visual and control elements. The display device breaks down the three-dimensional boom configuration into simplified visual representations, and the control system handles the complex motion calculation separately from the operator's simple directional inputs
3Productivity
If autonomous control sequences are used to move the boom quickly, then productivity increases, but legal regulations impose limitations on calculation speed
Solution Approach 1:
The control system dynamically adjusts boom movement parameters based on real-time conditions and regulatory constraints. The microprocessor continuously calculates optimal movement paths while respecting maximum speed limits, allowing the system to operate at high productivity levels within legal frameworks by adapting speed parameters to current boom position and configuration
Data Source
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Figure 2a~2b
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AI summary
The invention relates to a method for controlling the movement of an end hose (12) arranged on a concrete placement boom (10) of a concrete pump (1) with a display device (20) arranged in the region of the end hose (12) by means of a control device (50), comprising the following steps: outputting a signal for displaying a predefined movement direction to the display device (20); receiving a predefined speed for moving the end hose (12) from an actuation device (30); and calculating and outputting control signals for controlling the concrete placement boom (10) in such a way that the end hose (12) is moved in the predefined movement direction at the predefined speed. The invention also relates to a corresponding control device (50), a system, a concrete placement boom and a computer program for controlling the movement of an end hose (12) arranged on a concrete placement boom (10) of a concrete pump.