The Bluetooth SIG Group has recently announced the introduction of a grid-based network support in the Bluetooth standard. What are the benefits of this solution?
Thanks to the new solution, devices working with the Bluetooth protocol have gained the ability to communicate many-to-man, since now you can talk about not connecting two devices for data transmission, or many devices with one, as in the case of Bluetooth Smart, and the whole a network where the points communicate on an ‘everyone with each’ basis. The solution, you can say, perfect, for example, for intelligent buildings, factories and other IoT applications.
How it’s working?
The Bluetooth Mesh network consists of relay nodes whose task is to transmit information and from smaller nodes (eg sensors, beacons, etc., also called ‘Friends’), which contact them periodically using the ‘friendship’ mechanism. The maximum number of elements present in one Bluetooth Mesh network is 32,767 (each node being at least one element), however, the Bluetooth SIG acknowledges that in real applications this number usually drops to one thousand. The bandwidth of a network based on BLE devices is supposed to be 1 Mb / s, but we do not know yet how much it will be able to satisfy the needs of thousands of devices that communicate with each other constantly.