A multicast implementation method of lpwan internet of things
An implementation method and technology of the Internet of Things, applied in the field of multicast implementation of the LPWAN Internet of Things, can solve the problems of no solution and inability to deploy, and achieve the effect of facilitating later maintenance
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[0101] The present invention will be further described below in conjunction with accompanying drawing:
[0102] figure 2 It is a schematic diagram of the structure of the LoRaWAN multicast group:
[0103] LoRa terminal 201: To receive multicast information, it needs to be a ClassB or ClassC terminal;
[0104] LoRa base station 202: responsible for transmitting multicast frames to all LoRa terminals covered by the base station;
[0105] Network server 203: responsible for allocating multicast addresses and maintaining multicast group routing, a multicast group will be composed of multiple LoRa base stations 202;
[0106] Multicast application 204: multicast source, responsible for the establishment and maintenance of multicast groups; a multicast application has multiple multicast groups, and the multicast addresses and security keys of each multicast group are different.
[0107] image 3 Calculation method for multicast group key
[0108] Each multicast application 204 ...
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