31 results about "Soil heat flux" patented technology

A precision control system for the water layer of a rice square field belongs to the automatic control technology in the agricultural engineering. The system comprises a water layer management unit, as well as a meteorological acquisition unit, a water layer precision control unit and a soil environment acquisition unit which are connected with the water layer management unit through wireless bridge communication, wherein the water layer management unit comprises an industrial control computer and a main node network bridge; the meteorological acquisition unit is composed of a branch node network bridge I, a rainfall controller, an evaporation volume sensor, an atmospheric temperature sensor, and an anemorumbometer; the water layer precision control unit is composed of a branch node network bridge II, a water layer controller, a touch screen, a water level sensor, a flow meter, a water injection valve and a water discharge valve; and the soil environment acquisition unit comprises a branch node network bridge III, a multi-channel analog collector, water temperature sensor, a soil temperature sensor, a soil water content sensor, and a soil thermal flux sensor. The system has high automatic degree, and is reliable in water layer precision control.