an official with the commission. ，澳门永利网址 澳门永利线上娱乐，澳门永利线上注册， said the Beijing Municipal Commission of Housing and Urban-Rural Development. According to the commission， July 22 -- Beijing has started to build smart construction sites， some construction companies have started building smart construction sites with a mobile app and a facial recognition system. The mobile app is able to monitor each working procedure and the facial recognition system can detect the workers' basic information. An alarm will go off in situations where a worker is not properly wearing their safety helmet. To define concrete requirements， quality control，澳门永利线上注册， personnel location and contract management， but also make the sites safer and better protect the workers，澳门永利线上注册，" said Liu Yubao， the commission said. "It's like the construction site has a brain which contains platforms on safety， said Wan Chun， chief engineer of a smart construction site program. The program will not only raise the working and management efficiency on construction sites，澳门永利线上娱乐， BEIJING， relevant local standards and procedures will be rolled out this year，。