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BLE Beacon’s Status Estimation on Edge Device for Generation of Inter-Processes Transactions on Kanban System

In recent years, industries have begun to require the digitalization of numerous manufacturing processes. The well-known Kanban system in manufacturing requires digital data of transactions, such as e-Kanban. Existing studies that focus on e-Kanban mostly use RFIDs, QR codes, or bar codes to identify Kanban cards. However, RFID increments entire implementing costs and QR/bar codes place additional operations on frontline workers. We focus on implementing an e-Kanban system using BLE beacons, which are effective for the inexpensive implementations of digitized systems. We propose a system that estimates a beacon’s status at a base-station that has a microcontroller. Our proposed system receives Bluetooth waves emitted by BLE beacons and estimates the status of the beacons at base-stations. The base-station identifies the beacons using UUID, Major ID, and Minor ID and estimates the status once and terminates the estimation of the beacon by a downlink from the server. This process is driven for each beacon. We conducted an experiment that transported BLE beacons on two routes. In one of them, our proposed method estimated the status with 96.32% accuracy. In addition, our proposed system estimated the status with only 10% traffic compared to existing systems.