BLE AoA vs UWB: Which Should You Choose for Warehouse Positioning?

Finding a pallet in the correct storage zone is different from distinguishing adjacent bays or following a forklift through a crossing. Write down the action triggered by location, the acceptable error and how old the information may be. Specify whether the target is a person, a tool, a pallet or a vehicle, because mounting and movement differ.

Build a short requirements sheet containing the floor plan, rack heights, occupied aisles, tag count, moving-tag count and charging workflow. Mark areas that require coordinates and areas where a zone event is sufficient. This avoids paying for uniform precision across spaces that do not need it.

Bluetooth Angle of Arrival uses a receiving antenna array to estimate the direction of a compatible tag signal. A location engine combines the observations with locator position, orientation and other constraints. An ordinary BLE advertising tag does not automatically provide the direction-finding signal required by a particular AoA system.

UWB offers several architectures. TWR exchanges messages to estimate range; uplink TDoA uses a synchronized receiver network; a UWB angle system adds direction measurements. Ask the supplier which method is implemented rather than comparing “BLE AoA” with an unspecified “UWB” product. Include the tag, receiver, firmware and engine in that answer.

Metal shelving, stock and vehicles can change which paths reach a receiver. An unobstructed coverage radius is a starting point for planning, not proof that every rack aisle is covered. Test corners, the ends of aisles, rack intersections and areas where workers turn their bodies between the badge and receiver.

Agree on surveyed checkpoints and a repeatable moving route. For each candidate, record horizontal error at checkpoints, valid-fix availability, update age and missed or duplicate zone events. Keep static accuracy separate from tracking delay: a smooth line on a dashboard can hide stale measurements. Use the same mounting position, tag population and traffic conditions when comparing results.

A tag that is easy to attach, charge and replace may be more useful than a technically capable device that is regularly left on a charging shelf. Include time spent assigning tags, checking battery status and replacing lost units in the evaluation. For vehicle tracking, test the final mounting location with the vehicle loaded.

Request two comparable bills of materials covering installation, network equipment, software and support. Where different zones need different outputs, evaluate a mixed deployment with a common asset identity and explicit position-source labels. Keep the integration cost visible instead of assuming that two radio systems merge automatically.