The ying's smart door lock was established in february 2015 by lebo lebo educational technology ltd. In beijing and was officially authorized in march of the same year to act as the general agent for robo products in korea. The smart door locks of ying's smart door are produced using state-of-the-art technology to improve/enhance the functionality and intelligence of products, make them more user-friendly for consumers, and, in cooperation with other advanced smart door lockers, to develop and produce more advanced, intelligent locks, and the creative robot that occupies the wider market of smart door locks in korea was designed by engineers at seoul national university. Ying's smart door lock brand has been designated as a technical equipment provider by more than 1,200 primary and secondary schools and kindergartens in korea. Each year, 120,000 students study the roborobo smart locks. Korea robo robots won the technology award and the smart door lock industry award for five years in a row at the korea youth science explorer competition; in 2008, the yanko door lock brand received iso9001 certification nno-biz and the korea business/technology creation award. Ying's smart door lock brand was selected as a model operator for smart door lock products. The product of the yt is related to the improved performance of basic and technological c, such as mechanical technology, electronic technology, automated control, communication and sensor technology, computer technology, and so forth, which can trigger the implementation of the smart door lock during the production process. It stimulates the upgrading of the overall function of the yt key, especially by bridging the gap between modern technology and other advanced smart door locks in the twenty-first century, and the road ahead is long and many things need to be done. In 2011, the "steam" creation of the smart door lock concept was successfully developed and released, certified by kefcc and selected as a potential export trading company. The product is based on scientific concepts, curricula and a wealth of teaching aids, which help to achieve more user-friendly use, and the cedrist smart door locks are more functional and help consumers achieve safer improvements/increase in their lives. In 2013, the yangzheng smart gate lock group was formed and certified as 3c. The ying's smart door lock is dedicated to providing highly professional, scientific and intelligent locks. We have adhered to the concept of "steam" regulation, and have sought to introduce, integrate and transform it, adapting the international advanced smart lock model to china's current consumption environment and contributing to china's smart lock industry。