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1. (WO2018196169) NUTRIENT SOLUTION DISTRIBUTION DEVICE AND METHOD FOR MONITORING CONCENTRATION OF NUTRIENT SOLUTION

Pub. No.:    WO/2018/196169    International Application No.:    PCT/CN2017/092548
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Wed Jul 12 01:59:59 CEST 2017
IPC: A01C 23/00
Applicants: SHENZHEN QIANHAI HONGJIA TECHNOLOGY CO., LTD.
深圳前海弘稼科技有限公司
Inventors: WANG, Gang
王刚
Title: NUTRIENT SOLUTION DISTRIBUTION DEVICE AND METHOD FOR MONITORING CONCENTRATION OF NUTRIENT SOLUTION
Abstract:
A nutrient solution distribution device and a method for monitoring concentration of a nutrient solution. The nutrient solution distribution device comprises: a plurality of sub-nutrient tanks (102), for storing the nutrient solution and distributing the nutrient solution to plants; a reservoir nutrient tank (104), connected to each of the sub-nutrient tanks (102) for delivering the nutrient solution to each of the sub-nutrient tanks (102); a plurality of sensors (106), for detecting concentration values of the nutrient solution in each of the sub-nutrient tanks (102) and the reservoir nutrient tank (104); a nutrient solution formulation device (108), connected to the reservoir nutrient tank (104) and for delivering the nutrient solution to the reservoir nutrient tank (104); and a controller, connected to the reservoir nutrient tank (104), each of the sub-nutrient tanks (102), each of the sensors (106) and the nutrient solution formulation device (108). The nutrient solution distribution device and the method for monitoring the concentration of the nutrient solution allow the concentration values of the nutrient solution in each of the sub-nutrient tanks and the concentration values of the reservoir nutrient solution to meet concentration criteria, preventing the concentration of the nutrient solution in the sub-nutrient tanks or the reservoir tank from decreasing due to plant absorption or water evaporation, ensuring normal plant growth.