viAct Piloting AIoT-driven Heat Stress Management System on Singapore Construction Sites

viAct is piloting an AI-driven heat stress management system on Singapore construction sites, combining existing CCTV cameras layered with AI intelligence and industrial IoT smartwatches to detect when a worker is approaching a heat stress threshold. When risk is identified, the system delivers a direct haptic alert to the worker in real-time, without waiting for a supervisor to intervene.

The pilot aligns with Singapore's Ministry of Manpower (MOM) guidelines requiring active monitoring of Wet Bulb Globe Temperature (WBGT) levels and structured responses when heat thresholds are exceeded. Early results from viAct's deployments show a 63% reduction in heat-related medical cases and over 95% adherence to hydration and rest protocols, achieved through timely, individualised alerts rather than enforcement.

"Heat stress does not occur at fixed intervals. It develops continuously based on exposure, workload, and individual response." said Gary Ng.