Abstract
We discuss the potential of ultra-wideband (UWB) technology for realizing use cases in industry 4.0 and demonstrate the implementation of an UWB sensor network with off-the-shelf transceivers for machine vibration monitoring. We propose a flexible medium access layer tailored for industrial sensing and show how the choice of its parameters is affected by the propagation environment and hardware constraints. Our real-world experiments reveal that links up to 20 meters can be achieved in industrial environments with an average packet loss rate in the order of 10 -6 for typical links. A comparison with a commercial vibration monitoring system based on IEEE 802.15.4 spread spectrum shows that UWB attains a twenty-times higher throughput for similar link ranges.
Highlights
Wireless sensing has become a key component in factories and other industrial facilities
We argue and demonstrate that ultra-wideband (UWB) — which was considered as a main candidate for industry in the early-2000s — has the potential today to effectively support industry 4.0
We investigate machine vibration monitoring, whose purpose is to infer the structural health of machines from analyzing their vibration patterns
Summary
Wireless sensing has become a key component in factories and other industrial facilities. Some applications — like machine condition monitoring and process automation — require much higher data rates, along with high reliability and low latency [2]–[5]. General purpose wireless technologies do not meet industrial requirements, which calls for customized solutions designed for industry [6]–[8]. Wi-Fi and mature industry solutions like the IEEE 802.15.4 spread spectrum standard — upon which ZigBee, ISA100, and WirelessHart are based (considered in [3], [4], [9]–[11]) — cannot meet the reliability or latency demands of particular applications. Implement, and evaluate an industrial UWB sensor network targeted at high-rate applications with an.
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