日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

Global EditionASIA 中文雙語Fran?ais
Lifestyle
Home / Lifestyle / News

Robot tea picker assists in Longjing harvest

China Daily | Updated: 2023-04-08 10:17
Share
Share - WeChat

HANGZHOU — With a sun hat made of solar panels, a robot weaves through rows of bushes covered in leaves of renowned Longjing tea in Hangzhou's West Lake scenic spot, in East-China's Zhejiang province.

Agile manipulators and caterpillar tracks make picking the tea a breeze for the mechanical marvel.

The 550-kilogram robot is a godsend for local tea planters this season. The Qingming Festival, which fell on Wednesday this year, marks the start of the major harvest period for premium spring tea, and the local tea gardens are understaffed.

Longjing tea, also known as West Lake Dragon Well tea, is a variety of green tea. As one of China's 10 most famous teas, it is characterized by its green color, delicate aroma, mellow taste and beautiful shape.

"The beautiful forms of a bud with one leaf or a bud with two leaves are often acknowledged as quality tea. The picking work of such tea leaves has relied largely on manual work, very difficult to be replaced by machinery," says Jia Jiangming, developer of the robot and an associate professor from the school of mechanical engineering of Zhejiang Sci-Tech University.

However, most of the tea pickers in the production areas of Longjing tea are all in their 60s, few are in their 50s, and hardly any young people are keen to take up jobs in the industry.

"If so, the Longjing tea industry may face issues when there is nobody left to help pick the leaves," Jia says when explaining why his team started to develop tea-picking robots as early as 2019.

Generally speaking, one bud and one leaf of the early spring tea is about 2 centimeters long, and the petiole is merely 3 to 5 millimeters long, thus demanding a high operation accuracy of the mechanical arms. If cut at the wrong angle, the robot will damage the tea branch or harvest an incomplete bud and leaf.

The damaged tea leaves can not be used, causing unnecessary waste, according to the researchers.

Jia's team introduced a cognition model of convolutional neural networks and deep learning, enabling the robot to study lots of data and many images of tea tree buds and leaves.

Using binocular stereo vision, the robot can position where the target bud and leaf are, cut them precisely, and then, suck the leaves into its basket via its negative-pressure pipette.

Earlier this year, the fifth generation of Jia's robot helper was brought online, lifting the accuracy of bud and leaf recognition to 86 percent and improving the picking efficiency to 1.5 seconds per tea leaf.

Compared with the third-generation robot, which was launched last year, the upgraded robot's overall tea-picking success rate rose from 40 percent to 60 percent.

"The new generation robot can perform as well as a human tea picker," says Chen Jianneng, another researcher on the team, adding that, although the robot is still in trial operation, the team plans to improve its practicality, thus allowing the tea industry to enjoy tangible benefits brought by mechanization in the near future.

Xinhua

 

 

Most Popular
Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 国产精品久久久久久久久久久久 | 日本在线播放不卡一区二区三区 | 人妻熟女久久久久久久 | 91高清在线成人免费观看 | 国产最新精品 | 第三级视频在线观看 | 国产亚洲欧美在线 | 国产免费一区 | 国产在线一区二区三区 | 波多野结衣办公室在线观看 | 免费xx视频 | 韩日a级片 | 国产高清中文字幕 | 日韩免费在线视频 | 欧美久久xxxxxx影院 | www.黄色网.com | 午夜寂寞少妇aaa片毛片 | 日本成人在线看 | 国产精品色在线网站 | 97久久精品一区二区三区观看 | 久久综合久久久久 | 中国精品久久 | 九九99九九在线精品视频 | 高清视频在线观看 免费 | 无主之花在线观看 | 久久美女网 | 欧美大尺码毛片 | 日本高清天码一区在线播放 | 成人国产精品免费视频 | 一本色道久久88综合亚洲精品高清 | 国产视频福利 | 久久国产精品视频一区 | 成年人在线播放视频 | 日韩有码一区 | 伊人情涩网 | 天天做夜夜操 | a高清免费毛片久久 | 91久久亚洲国产成人精品性色 | 精品国产一区二区三区久久久久久 | 日本不卡在线一区二区三区视频 | 欧美日韩一区在线观看 |