At a family farm in Liangzhuang town, Tai'an in East China's Shandong province, Xiahei grapes are ripe for picking.

Chen Jun, operator of the family farm, has been adopting the technology of the internet of things to organically cultivate and produce Xiahei grapes since 2015. This type of grape yields about 200 kilograms every 666.67 square meters every year, and the market value of the grape is 30 yuan ($4.43) per kg.

The Xiahei grapes are ripe for picking at a family farm in Liangzhuang town in Tai'an. [Photo/dzwww.com]

Chen Jun picks a cluster of Xiahei grapes from the vine at the family farm in Liangzhuang town in Tai'an. [Photo/dzwww.com]

Xiahei grapes are big and round and boast a dark purple color. [Photo/dzwww.com]