Construction Assistance Control Using Worker Safety Awareness
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Solution Overview
Problem
Existing construction assistance systems prioritize safety over productivity, leading to excessive safety measures that can hinder the efficiency of work machines, especially when workers demonstrate varying levels of safety awareness.
Innovation Solution
A construction assistance system that includes a server to measure the actuation count of safety construction assistance functions, calculate a safety awareness level of workers, and adjust control parameters based on this awareness to optimize safety and productivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the safety construction assistance function is activated to sense workers and inhibit machine actions, then worker safety is improved, but machine productivity deteriorates due to excessive safety interventions
Solution Approach 1:
The system applies different safety assistance levels to different workers based on their individual safety awareness levels. High-awareness workers receive minimal intervention while low-awareness workers receive enhanced safety monitoring and machine inhibition, thereby reducing excessive safety interventions for competent workers and maintaining productivity.
Solution Approach 2:
The safety construction assistance function dynamically adjusts its intervention level based on real-time assessment of worker safety awareness. The control unit modifies machine operation restrictions according to the assessed safety awareness level, transitioning from static conservative inhibition to dynamic adaptive control that optimizes both safety and productivity.
2Reliability
If conservative safety design is employed to protect all workers including those with low safety awareness, then accident risk for all workers decreases, but excessive safety assistance is provided to high-awareness workers limiting machine actions
Solution Approach 1:
The system provides differentiated safety assistance tailored to each worker's safety awareness level. Workers with high safety awareness experience minimal machine inhibition and maintain operational freedom, while workers with low safety awareness receive enhanced protective restrictions, eliminating the need for uniform conservative design across all workers.
Solution Approach 2:
The control unit changes the operational parameters of the work machine based on the assessed safety awareness level of each worker. This includes adjusting speed limits, inhibition zones, and operation restrictions dynamically, allowing high-awareness workers to operate with minimal constraints while maintaining protective measures for low-awareness workers.
3Reliability
If the safety construction assistance function inhibits machine actions when workers are sensed, then worker protection is enhanced, but work efficiency decreases due to frequent safety interventions
Solution Approach 1:
The system dynamically adjusts the level of machine action inhibition based on the real-time safety awareness assessment of each worker. High-awareness workers experience minimal or no inhibition allowing continuous efficient operation, while low-awareness workers receive targeted protective restrictions, thereby maintaining work efficiency for competent workers while ensuring protection for others.
Solution Approach 2:
The safety intervention is locally applied to specific workers based on their individual safety awareness levels rather than uniformly to all workers. This selective approach ensures that only workers who need protection experience machine inhibition, preserving work efficiency for high-awareness workers while providing necessary protection to low-awareness workers.
Data Source
AI summary
The object of the present invention is to provide a constriction assistance system that can optimize the safety and the productivity in a work at a construction site. Accordingly, the construction assistance system that has a safety construction assistance function that contributes to risk reduction in regard to a worker and a work machine at a construction site includes a server that collects operation information on the work machine deployed at the construction site, and a communication network that connects the work machine with the server. The server measures an actuation count of the safety construction assistance function, calculates a safety awareness level of the worker who works at the construction site on the basis of the actuation count, and delivers the safety awareness level to a receiving device.