A staff member fills an unmanned transplanter with rice seedlings in a smart agriculture demonstration zone administered by Hongwei Farm Co., Ltd. of Beidahuang Group in northeast China's Heilongjiang Province, May 11, 2021. Equipped with a self-driving system based on the Beidou Navigation Satellite System (BDS), the smart transplanter can independently finish rice transplanting, avoid obstacles and turn around when needed. (Xinhua/Zhang Tao)

A staff member inspects an unmanned transplanter in a smart agriculture demonstration zone administered by Hongwei Farm Co., Ltd. of Beidahuang Group in northeast China's Heilongjiang Province, May 11, 2021. Equipped with a self-driving system based on the Beidou Navigation Satellite System (BDS), the smart transplanter can independently finish rice transplanting, avoid obstacles and turn around when needed. (Xinhua/Zhang Tao)

Aerial photo taken on May 11, 2021 shows a rice paddy in a smart agriculture demonstration zone administered by Hongwei Farm Co., Ltd. of Beidahuang Group in northeast China's Heilongjiang Province. Equipped with a self-driving system based on the Beidou Navigation Satellite System (BDS), the smart transplanter can independently finish rice transplanting, avoid obstacles and turn around when needed. (Xinhua/Zhang Tao)

A staff member sets working route for an unmanned transplanter on a vehicle-mounted terminal tablet in a smart agriculture demonstration zone administered by Hongwei Farm Co., Ltd. of Beidahuang Group in northeast China's Heilongjiang Province, May 11, 2021. Equipped with a self-driving system based on the Beidou Navigation Satellite System (BDS), the smart transplanter can independently finish rice transplanting, avoid obstacles and turn around when needed. (Xinhua/Zhang Tao)

A staff member inspects an unmanned transplanter in a smart agriculture demonstration zone administered by Hongwei Farm Co., Ltd. of Beidahuang Group in northeast China's Heilongjiang Province, May 11, 2021. Equipped with a self-driving system based on the Beidou Navigation Satellite System (BDS), the smart transplanter can independently finish rice transplanting, avoid obstacles and turn around when needed. (Xinhua/Zhang Tao)