Digital Twin

A digital twin faithfully reproduces physical objects (buildings, machines, cities, products) in digital space using sensor data and simulation. Physical states reflect in real-time to digital models for simulation, prediction, and optimization.

QR codes interface physical objects with their digital twins. Scanning a QR code on factory machinery accesses its digital twin - 3D model, operating status, maintenance history, and parts information. Workers reference detailed digital information instantly via smartphone.

In construction, QR codes on building equipment link to BIM data - design drawings, construction records, and inspection history accessible through digital twin interfaces.

QR codes complement IoT sensors cost-effectively. Where installing sensors on every device is impractical, QR code stickers create physical-digital connections for pennies each.