BLE Localization using switched-beam angle of arrival for pallet localization in warehouses

In the supply chain logistics, a lot of errors can occur that can be overcome by implementing a wireless sensor network (WSN) in the RTI's. This can add a new layer of monitoring to the process. The localization of nodes covers an important part of that. This paper supplies a survey on the architecture, topology and methodology for localizing mobile nodes, specialized on the logistic field. Furthermore, a new circuit board with switched-beam Bluetooth transceivers in eight different directions is evaluated. It can apply the Angle Of Arrival technique to perform localization by comparing a measurement with multiple models. It can reach an accuracy of around 2° in an anechoic chamber, but different altitudes and polarizations from the target severely influence the outcome.