RFID inventory management system: see tagged stock where it actually is

An RFID inventory system has four layers. Tags on items, cartons or pallets. Readers — fixed portals at doors, overhead antennas, gates and handhelds for counts. Middleware that filters duplicate reads and turns an antenna into a location. And a system of record — your WMS, ERP or store system — that owns the stock figures.

What is usually missing is the picture. Read logs and stock tables tell you what; they rarely show where, in a way a shift lead can act on. Spatial Map adds that layer without replacing any of the four: it is a live 3D map of the building with your inventory data on it.

You build the facility once — racks, bins, zones, docks, doors — by tracing a PDF or DWG floor plan, or our team does it. Reads and stock arrive in a Spatial Map table; a data link matches each row to a shape by location name or code, and style rules colour it. In the Crestline demo, every one of 1,484 pallet locations is coloured full, OK, low, empty or blocked from a stock table, and 627 RFID cartons sit at the reader or zone that last saw them.

Because every change to a table row is kept, a data link set to historical movement adds a History player: you can replay how a carton travelled from receiving to pack-out, which is often faster than reading a log.

Typical questions the map answers in seconds rather than a walk of the floor:

Spatial Map does not post stock transactions, decode tags, tune antennas or compute positions from signal strength — your WMS, middleware or RTLS engine do that. It does not send alerts either: it shows state on the map and in reports. Connecting it is usually a small job: anything that can produce a JSON row can feed a table, and our team can build the relay or a full integration as custom development.