CASE · Construction

Mid-size Constructor A
Apartment new-build worksite

Smart watches and helmet beacons were deployed at a high-elevation worksite with significant fall and heat-stroke risk, establishing a real-time hazard monitoring framework.

OVERVIEW

Worksite overview

Industry

Construction

Scale · Duration

200 workers · 6 months

Deployment configuration

50 watches · 80 helmet beacons · 50 belt beacons · 30 fixed beacons · 12 geofence zones

Constructor A was building a 25-floor apartment block in the greater Seoul area. With subcontractor personnel rotating frequently and elevated work concentrated throughout, the company was looking for a system to prevent fall and heat-stroke incidents before they occurred. SenseZero conducted a 6-month PoC using a 4-layer combination of smart watches, helmet beacons, belt beacons, and danger-zone beacons — demonstrating a 32% reduction in high-risk alerts and a 57% reduction in response time.

KPI

Key outcomes

32%

High-risk alerts reduced

57%

Response time cut

200명

Workers monitored simultaneously

12구역

Geofence danger zones

CHALLENGES

Problems to solve

01Frequent subcontractor personnel rotation made it difficult to track safety training completion
02Site managers could not check in real time whether workers at height were wearing their harnesses
03No early-detection system for heat-stroke risk during summer months
04Structural delay in responding within the golden window when a fall occurred

SOLUTION

Solutions deployed by SenseZero

S.01Watch-based heart-rate and activity monitoring for early detection of heat-stroke and overwork signs
S.02Helmet and belt beacons for real-time detection of hard-hat wearing status and danger-zone entry
S.0312 elevated-work zones geofenced — unauthorised entry triggers immediate watch vibration and manager alert
S.04Non-response alert after a fall appears on the manager dashboard within 5 seconds

TIMELINE