PAAS platform-based ultra-low power consumption soil near-ground wireless sensing system

A PaaS platform-based ultra-low power consumption soil near-ground wireless sensing system, comprising a plurality of sensors mounted in soil, wherein a signal transceiver module is arranged in the sensor, the signal transceiver module transmits a signal to a LoRaWan gateway through a LoRa wireless communication, and the LoRaWan gateway is successively connected to a PaaS platform and a user group;

• and the plurality of sensors comprise a soil moisture sensor, a soil salinity sensor and a rainfall sensor;
• wherein a sampling period of the soil moisture sensor is
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• T(n) is an nth sampling period of the soil moisture sensor, θ(n) is a soil moisture value acquired by the sensor, Δ is a maximum allowable deviation of two data before and after maintaining a data integrity, R is a rainfall grade, and E0 is an empirical parameter, wherein R is real-time weather forecast data, R is obtained by measured rainfall of the rainfall sensor, and values of R are 1, 2, 3, 4, 5, 6 and 7, which are sequentially increased, and respectively represent no rain, light rain, moderate rain, heavy rain, excessive rain, torrential rain and extraordinary rain, and E0 serves as an empirical parameter, which is capable of adjusting the sampling period to a suitable value at an initial stage according to actual application requirements.