The application belongs to the technical field of
Bluetooth networking, and discloses a layered mixed routing method based on
Bluetooth and related devices. The layered architecture is used to divide backbone and edge network
layers. The edge nodes do not participate in routing forwarding, and only access the backbone nodes to obtain services, so that the edge nodes do not consume
radio frequency resources to participate in irrelevant topology maintenance. The
Bluetooth broadcast channel is used to carry neighbor discovery, and the
data channel is used to carry signaling and service data. The bandwidth
advantage of the Bluetooth
data channel is fully utilized, and the
signal collision and broadcast
storm problems caused by the dependence on the broadcast channel are avoided. A routing candidate table is constructed based on multi-dimensional link quality indexes, and the
link layer confirmation mechanism is combined to guarantee stable
data transmission. Through active routing switching and passive fracture repair, the problems of service interruption and
slow response in traditional routing switching are solved. Meanwhile, global balanced allocation of
radio frequency resources is realized,
single point overload is avoided, control signaling and service
data transmission are separated, and topology update
lag is prevented when congestion occurs.