BEIJING, July 22 (Xinhua) -- Beijing has started to build smart construction sites, said the Beijing Municipal Commission of Housing and Urban-Rural Development.

According to the commission, 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, relevant local standards and procedures will be rolled out this year, the commission said.

"It's like the construction site has a brain which contains platforms on safety, quality control, personnel location and contract management," said Liu Yubao, chief engineer of a smart construction site program.

The program will not only raise the working and management efficiency on construction sites, but also make the sites safer and better protect the workers, said Wan Chun, an official with the commission.