Asphalt Finisher Detection Unit for Worker Safety
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Solution Overview
Problem
Existing asphalt finishers lack the ability to detect individuals in the periphery of the vehicle body, which can lead to accidents when workers are present in the application range of the paving material.
Innovation Solution
Incorporating a detection unit that uses cameras and machine learning to detect individuals in the periphery of the asphalt finisher, allowing for real-time monitoring and control of the vehicle's operations to prevent accidents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a detection unit is added to detect persons in the periphery of the vehicle body, then safety monitoring capability is improved, but device complexity increases
Solution Approach 1:
The detection unit is designed to perform multiple functions: detecting persons in the periphery, determining their states (working or non-working), and providing information for safety monitoring. This multi-functionality approach allows a single detection unit to handle various safety monitoring tasks, improving reliability while controlling device complexity.
Solution Approach 2:
The detection unit acts as an intermediary between the environment (person detection) and the control system. It captures images, processes them to detect persons and determine their states, and provides output information to the control system, which then makes safety decisions. This intermediary approach separates the complex detection and processing tasks from the control decisions.
2Reliability
If real-time detection and monitoring is implemented, then accident prevention capability is improved, but energy consumption increases
Solution Approach 1:
The detection unit operates by capturing images at periodic intervals rather than continuous real-time monitoring. The control system determines persons' states based on these periodic images and outputs information when changes are detected. This periodic operation reduces energy consumption while maintaining effective safety monitoring and accident prevention capability.
Data Source
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AI summary
There is provided an asphalt finisher (100) that allows an operator to easily know a situation of an application range of a paving material. An asphalt finisher (100) includes a tractor (1), a hopper (2) that is installed on a front side of the tractor (1), a conveyor (CV) that transports the paving material in the hopper (2) to a rear side of the tractor (1), a screw (SC) that spreads the paving material, which is transported by the conveyor (CV) and is sprinkled on a road surface, in a vehicle width direction, a screed (3) that levels the paving material spread by the screw (SC) on a rear side of the screw (SC), and a detection unit that detects an application range of the paving material, in which the asphalt finisher (100) is configured to perform a process of outputting information regarding a state of a person detected by the detection unit.