Agricultural Internet of Things communication method and device based on wideband-narrowband integration

In order to solve the problems of single communication mode and low communication rate of an agricultural Internet of Things integrated gateway, the invention provides an agricultural Internet of Things communication method and device based on wideband-narrowband integration, and the method comprises the following steps: setting a plurality of sensor nodes at a target agricultural environment monitoring position; acquiring sensing data acquired by the sensor nodes, and storing the sensing data in a local data file; performing data fusion on the sensing data to be transmitted; determining the data volume of a sensing data fusion result according to a preset threshold value, when the data volume of the sensing data fusion result is larger than the preset threshold value, transmitting the sensing data fusion result to a server by using a wideband network and by calling a corresponding communication protocol, and otherwise, transmitting the sensing data fusion result to the server by using a narrowband network an