LoRaWAN Internet of things frequency hopping method

The invention discloses a LoRaWAN Internet of things frequency hopping method. A 470-510 MHz channel starts from 470.3 MHz to 509.9 MHz. A serial number of a 470.3 MHz channel is 0. The serial number of a 509.9 MHz channel is 198. One channel is arranged every other 200 K. 20 channels in the 200 channels are appointed as default channels. A working frequency of a base station is configured on a cloud platform. The channels of n serial numbers are configured for the base station in support of n channels. It should be noted that the n channels at least comprise one default channel. A gap of uplink and downlink frequencies is configured. When a module sends frequency hopping and network search instructions on the default channel, the channel information of the uploading base station is replied to the module. The module carries out corresponding adjustment and then joins a LoRaWAN to start working. According to the method, two systems: uplink and downlink same-frequency and different-frequency systems are compati