Concrete Paver Carriage Lighting System
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Solution Overview
Problem
Current concrete paving operations face challenges with inadequate lighting solutions, including light tower interference with traffic, excessive manpower requirements for contractor-designed systems, and limited output and battery life issues with battery-operated lights, which impact safety and efficiency during night paving.
Innovation Solution
An integrated lighting system mounted on the concrete paving carriage, powered by the carriage's electrical system, using low-voltage, low-current, high-output lights that eliminate the need for external generators and provide consistent, adjustable illumination without affecting the machine's operation or weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light towers are used for night paving operations, then wide area illumination is provided, but traffic flow is interfered with and major shadows are produced
Solution Approach 1:
The lighting system is segmented into multiple individual light sources (headlights, work lights, auxiliary lights) positioned at different locations on the paver and workbridge, replacing the single large light tower. This segmentation provides distributed illumination that reduces shadowing and allows selective positioning to avoid traffic interference zones.
Solution Approach 2:
The paver and workbridge structures serve as intermediaries to mount and position the light sources. Instead of using external light towers that interfere with traffic, the lighting system is integrated onto the paving equipment itself, using the machine structure as a mounting platform and positioning mechanism.
2Illumination intensity
If contractor-designed lighting systems with generators are used, then concrete finishing site lighting is provided, but machine weight increases and vibrations are added
Solution Approach 1:
The paver's existing electrical system serves itself by providing power to the integrated lighting system. The engine-driven generator that already powers the paver's operations is utilized to also power the lights, eliminating the need for separate lighting generators and reducing overall system weight.
Solution Approach 2:
The paver's electrical system is designed to serve multiple functions: powering both the paving operations and the integrated lighting system. This multi-functionality eliminates the need for dedicated lighting power sources, reducing weight while providing adequate illumination.
3Ease of operation
If battery-operated lights are used, then portability is improved, but light output is minimal and battery life becomes problematic
Solution Approach 1:
The lighting system extracts power from the paver's existing electrical system rather than relying on portable battery sources. This extraction of power from the main system provides continuous, high-output illumination without the limitations of battery capacity and replacement requirements.
4Object-affected harmful factors
If light towers are carefully laid out and installed, then traffic interference is reduced, but additional man-hours and job costs increase
Solution Approach 1:
The lighting system is merged with the paver and workbridge structures, creating an integrated unit that moves with the paving operation. This eliminates the separate setup and breakdown processes required for external light towers, reducing labor time and costs while maintaining traffic safety.
Solution Approach 2:
The lighting system is dynamic, moving with the paver as it progresses along the pavement. This dynamic positioning automatically optimizes lighting coverage of the concrete finishing site while maintaining safe distances from traffic areas, eliminating the need for manual repositioning of stationary light towers.
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 enhances safety and efficiency by providing consistent, moving lighting that minimizes setup requirements, reduces job costs, and prevents interference with traffic, while maintaining the machine's performance and ease of configuration for various job sites.
Implementation Method 1
The low voltage, low-current, high-output lights are driven directly from the electrical system on the engine that powers the concrete paving carriage
Data Source
AI summary
A concrete paver comprising a workbridge, which moves along a path to be paved. A carriage mounted on and reciprocating along a longitudinal axis of the workbridge, which is orthogonal to the path to be paved. A plurality of electrical lights disposed on and illuminating a surface which is fixed relative to the carriage, but variable or moving with respect to the workbridge. The electrical lights providing a substantially constant illumination to workers who work with the concrete surface as the carriage moves along the workbridge.