Real-time communications over Bluetooth Low Energy
RESEMBLE is a real-time version of the Bluetooth Low Energy standard for mesh networks, which jointly supports guaranteed bounded delivery times for real-time traffic in the presence of non-real-time traffic, node mobility and clock synchronization. RESEMBLE is a low-cost solution that can run on industrial devices and also on common mobile devices (e.g., smartphones, tablets), as it does not need hardware modifications.
RESEMBLE is suitable to support AI-based industrial applications (e.g. predictive maintenance, condition monitoring) and Industrial IoT.
The invention, called RESEMBLE, REaltime Synchronized mEsh Mobile BLE, is a software-only solution that runs on top of the BLE standard to support:
– Real-time multihop communications, providing predictable message delivery times over mesh networks.
– Node mobility, through suitable message forwarding policies for mobile nodes that meet both the temporal constraints on the message delivery times and the reliability requirements.
– Both real-time and non-real-time traffic on the same channel, as the transmission of non-real-time traffic does not affect the delivery times of real-time traffic.
– A clock synchronization mechanism, which enables a common notion of time for all the network devices.