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<p>Real-time monitoring of safety compliance is a herculean task in the construction scenario especially in vertical construction environments, this paper proposes a novel approach of scaffold-based IoT framework for monitoring construction site safety by addressing altitude detection, harness clamping monitoring. The system is developed in two phases; the first phase addresses the issue of height (altitude-wise) and location detection through RF signal strength and ZigBee technology which achieved a 99.21% accuracy in controlled environments. The second phase addressed the clamping detection through an insulated wiring network thorough the scaffold framework. This system achieved 98.66% accuracy with an average response time of 1.5&#xa0;s, offering real-time alerts and visual feedback via dual-color LEDs. Cloud integration ensured seamless monitoring for supervisory actions. Calibration of the system was carried out in open and closed spaces which mitigated challenges such as signal attenuation and interference. In open environments, the system maintained a reliable range of up to 30 feet with a 97% communication integrity rate, while in closed environments, the range reduced to 20 feet due to obstructions, necessitating strategic transceiver placement. The limitations identified were battery dependency, and maintenance demands due to the temporary nature of scaffolds. Despite these limitations, the system demonstrated reliable real-time monitoring, real-time alert generation, and improved safety highlighting its potential as a solution for mitigating risks in construction environments.</p>

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A Scaffold-Based IoT Framework for Real-Time Worker Safety Monitoring in Construction Sites

  • 期刊论文

  • 发表日期：

    2026年7月4日

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  • V. Chethan,
  • P. Nanjundaswamy

摘要

Real-time monitoring of safety compliance is a herculean task in the construction scenario especially in vertical construction environments, this paper proposes a novel approach of scaffold-based IoT framework for monitoring construction site safety by addressing altitude detection, harness clamping monitoring. The system is developed in two phases; the first phase addresses the issue of height (altitude-wise) and location detection through RF signal strength and ZigBee technology which achieved a 99.21% accuracy in controlled environments. The second phase addressed the clamping detection through an insulated wiring network thorough the scaffold framework. This system achieved 98.66% accuracy with an average response time of 1.5 s, offering real-time alerts and visual feedback via dual-color LEDs. Cloud integration ensured seamless monitoring for supervisory actions. Calibration of the system was carried out in open and closed spaces which mitigated challenges such as signal attenuation and interference. In open environments, the system maintained a reliable range of up to 30 feet with a 97% communication integrity rate, while in closed environments, the range reduced to 20 feet due to obstructions, necessitating strategic transceiver placement. The limitations identified were battery dependency, and maintenance demands due to the temporary nature of scaffolds. Despite these limitations, the system demonstrated reliable real-time monitoring, real-time alert generation, and improved safety highlighting its potential as a solution for mitigating risks in construction environments.