Bridge Paving Device with GPS Positioning and Hydraulic Actuation
Solution Overview
Problem
Current bridge paving processes are labor-intensive and time-consuming, requiring extensive surveying and precise placement of guide elements, which prolongs the preparation phase before actual paving can commence.
Innovation Solution
A bridge paving device equipped with reference prisms and satellite receivers for precise location, a computer apparatus to correlate location with a design profile, and hydraulic actuators to adjust the device's position and orientation, along with powered transition adjusters to alter the frame shape and apply variable crowns, enabling efficient and precise paving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If guide elements are precisely positioned using traditional surveying methods, then paving reference accuracy is improved, but preparation time and labor intensity increase significantly
Solution Approach 1:
The patent replaces traditional mechanical surveying methods with GPS satellite positioning and automated computer-controlled measurement systems. The GPS receivers on guide elements and the paving machine enable automatic coordinate acquisition and real-time position tracking, eliminating manual surveying operations while maintaining or improving positioning accuracy.
Solution Approach 2:
The system enables self-positioning and self-adjustment capabilities where the paving machine automatically determines its own position relative to guide elements using GPS data, and the computer control system automatically adjusts paving parameters without requiring manual surveying intervention at each step.
2Manufacturing precision
If traditional paving machines are used without automated positioning, then device complexity is reduced, but paving precision and ability to maintain design profile deteriorate
Solution Approach 1:
The computer control system integrates multiple functions including GPS data reception, position calculation, real-time control signal generation, and coordination of multiple actuators into a single integrated control platform. This multi-functional approach achieves high paving precision while managing system complexity through functional integration rather than separate dedicated systems for each function.
3Reliability
If guide elements are placed along the entire bridge perimeter, then paving reference is improved, but the time-consuming surveying and placement process worsens
Solution Approach 1:
Guide elements are pre-positioned at critical locations (such as bridge endpoints and intermediate points) rather than requiring continuous placement along the entire perimeter. The GPS-based system maintains reliable paving reference by triangulating position from these strategically placed guide elements, reducing the total number of elements needed while preserving reference reliability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution significantly reduces preparation time and enhances the efficiency of bridge paving by allowing the device to maintain precise alignment and adjust surface features dynamically, enabling faster completion of the paving process.
Implementation Method 1
one or more satellite receivers for receiving a positioning signal to locate the bridge paving device in three dimensional space
Data Source
AI summary
A bridge paving device includes one or more reference receivers to locate the bridge paving device in three-dimensional space. A computer apparatus receives the location of the bridge paving device and associates the location with a bridge paving design profile. The computer apparatus independently actuates a system of hydraulic actuators of the bridge paving device to level and orient the bridge paving device regardless of the travel surface the linear movement elements are running on. Additional hydraulic actuators may adjust the shape of the bridge paving device over time as the bridge paving device travels a linear distance of the bridge to be paved. The shape adjustment alters a crown or inversion applied to the bridge such that run-off characteristics are more variable and controllable along the entire span of the bridge.