Paving Machine Hopper Regulation via Sensor Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Paving machines face challenges in efficiently managing the quantity of paving material in their hoppers and ensuring safe operation by avoiding external obstacles during the reconfiguration of the hopper, which can lead to inefficiencies and potential accidents.
Innovation Solution
A control system that includes a material quantity sensor and an object detection sensor, integrated with an electronic controller, to monitor the material level and detect external objects, allowing the system to adjust hopper operations such as tilting and lowering the hopper sides and apron, and suspend operations if an object is in the interference zone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the hopper is reconfigured to receive or discharge material, then material flow efficiency is improved, but the risk of collision with external objects increases
Solution Approach 1:
The object detection sensor detects external objects before the hopper reconfiguration begins. The control system receives the detection signal and prevents the reconfiguration operation from starting if an object is present, thereby eliminating the collision risk before it can occur.
Solution Approach 2:
The object detection sensor continuously monitors the environment around the hopper and provides real-time feedback to the control system. When an object is detected within the interference zone, the control system receives this feedback signal and automatically suspends or prevents the hopper reconfiguration operation.
2Device complexity
If manual monitoring of material quantity is used, then system complexity is reduced, but material distribution precision deteriorates
Solution Approach 1:
The material quantity sensor automatically monitors the material level in the hopper and provides signals to the control system. The system self-regulates by comparing the sensor signal with predetermined thresholds and automatically controlling the hopper reconfiguration operation, eliminating the need for manual monitoring while maintaining high precision.
3Productivity
If continuous hopper operation is maintained, then productivity is improved, but the risk of overloading or underloading increases
Solution Approach 1:
The material quantity sensor continuously monitors the material level and provides feedback signals to the control system. When the material quantity reaches predetermined thresholds (indicating full or empty conditions), the control system automatically receives these signals and suspends the hopper operation, preventing both overloading and underloading while maintaining continuous operation during normal conditions.
Data Source
AI summary
A paving machine for paving a work surface can include a hopper for receiving, accommodating, and dispensing a paving material. The hopper may be movable into various positions including a conventional configuration, a material receiving configuration, and a material feeding configuration. The paving machine may include a hopper regulation system associated with a material quantity sensor and an object detection sensor and that utilizes data obtained therefrom to decide on proceeding with a material receiving operation, a material feeding operation, or to suspend hopper operation.