Technology description:The furthest distance that the improved system can reach while spraying and watering is over 500meters (the distance can be adjusted according tothe area of the garden). When spraying chemicals, the user just uncork the bottle and put the pipeline into such bottle. The system then automatically pumps the pure chemicals into a tank to dilute and adjust the amount of water. When it reaches an appropriate amount of water, the chemical amount probing equipment signals for the processor. The dilution of chemicals is completed. Regarding irrigation controller, it took Mr. Thanh over four months to complete the automatic irrigation system, using radio waves to control. He integrated aSIM with the controller to switch the system on/off. When making a call tothe number integrated with the controller using any cell phone, the controller triggers the power on/off to operate the motor to pump water.  During the process of spraying and watering, the user can stop or continue operating through radio waves;the spraying machine will stop automatically to save fuel and pesticide. Not only is it used for pesticide spraying, this system is also used for daily irrigation. The cost of making the system of “remote control chemical dilution – irrigation” is just about 1 to 2 millions VND.

NASATI (According to tiasang.com.vn, November 12, 2015)