The GVG system is a new solution, with the conception of sampling lineage instead of the traditional sampling point or sampling area, to extracting crop acreage information.
By making use of Z depth efficiency in error judgement of sampling point and utilizing reliability of vector partition, it can define the cutting error on real time.
Base on response characteristic of the thermocouple, with the temperature data of sampling point and algorithm of real-time-on-line data processing, can evaluation time-constant of thermocouple's usage-time.
Two sampling points are installed in the distribution loop to enable sampling of the water before going user points and before going back to the storage tank.
