QR codes and NFC in workplace safety — practical uses on site

QR is cheap, visible and works on any phone with a camera, but can suffer from dirt and poor light. NFC resists dirt, needs no camera aiming and better proves physical presence at a point — but requires an NFC-enabled phone.

In practice both are often combined: one sticker with a QR code for everyone and an NFC tag for inspection rounds. VIMS works the same way — a single point can be served by a code and a tag.

List your points: entrances, zones, machines, chemical stores, checkpoints. Give each a clear name and an owner. Generate codes from the system, print them on durable stickers resistant to oil and washing, and place them at eye level.

Tell employees what the codes are for — a short notice and a toolbox talk are enough. After a month, check which codes are scanned and which are not, and adjust placement.

A public code (e.g. for reporting) should lead only to a form, with no access to personal data. Sensitive data — incident history, employee records — require sign-in. Codes should point to the system, not to static files, so content stays current.

In VIMS, QR codes and NFC tags are generated inside the system, and access depends on permissions: a visitor can report a hazard or view a plan, a signed-in employee can perform an inspection or machine check.

A static QR code stores the address permanently in the graphic; a dynamic QR code points to an address whose target can be changed in the system without reprinting. In safety work, what matters most is that the code leads to current data, not to a PDF saved once.

An NFC tag (Near Field Communication) is a passive label read by a phone from a few centimetres. NFC is a form of high-frequency RFID (13.56 MHz); long-range UHF RFID needs dedicated readers. On metal surfaces use on-metal tags with an isolating layer, and in harsh areas housings resistant to oil, chemicals and UV.

An inspection checkpoint is a marked point on a round whose scan confirms presence and time. An asset tag links a machine, extinguisher or ladder to its inspection record — see ladder inspections and the site safety map.

Reporting without sign-in lets workers, visitors or contractors report a hazard or near miss from a phone. Quishing is fraud in which a fake QR code is stuck over a genuine one; label codes with the company name, check them during rounds and verify that the address opens the correct domain.