---
title: Data Centre Nameplates
emoji: 🔌
colorFrom: blue
colorTo: indigo
sdk: static
pinned: false
license: apache-2.0
short_description: Nameplate OCR checked against the equipment schedule
---

# Data Centre Nameplates

**Read an equipment nameplate and know if it is the unit the schedule asked for.**

Photograph the nameplate of a UPS, PDU, switchgear, generator, transformer, busway, battery, CRAH or chiller. This
runs OCR in your browser, pulls out the plate's fields — manufacturer, model, serial, voltage, phase, Hz, kVA, kW,
amps, MCA, MOCP, refrigerant, manufacture date — and **checks each one against the equipment schedule**, flagging
a mismatch instead of a silent pass. It builds an asset register and exports it to CSV.

Nothing is uploaded: the photo and the schedule stay on your device.

## Try it

1. Drop an equipment schedule as CSV (or click **Use sample schedule**).
2. Drop a nameplate photo (or click **Try a sample nameplate**).
3. Click **Read nameplate** and check the verdict, field by field, against the plate.

## How it works

- **OCR** — `tesseract.js@5` (English LSTM), loaded from a CDN, plus an error model for the way OCR misreads plate
  lettering (serifed `V`→`Vv`, `K`→`X` in `KVA`, `HZ`→`Hw`, codes split after their punctuation).
- **Extraction** — labelled-field parsing of `MODEL`, `S/N`, `MVA`, `MCA`, `MOCP`, `FLA`, `VOLTS`, `REFRIGERANT`,
  `MFG DATE`, with voltages read as `480Y/277`, `13.8 kV` or `208/120`.
- **Matching** — model and serial codes compared with `O/0`, `I/L/1`, `S/5`, `B/8`, `Z/2` folded, so a misread is
  not a false mismatch while a genuine voltage variant still fails.

## Links

- **Model card and code** — [constructelligence/data-centre-nameplates](https://huggingface.co/constructelligence/data-centre-nameplates)
- **Constructelligence** — [huggingface.co/constructelligence](https://huggingface.co/constructelligence) · [constructelligence.co](https://constructelligence.co)

> A prompt to look, not a finding. Not safety-rated, not a compliance decision, and not a substitute for
> inspection by a competent person.