Yinchuan: The smart city where your face is your credit card

composite image of woman's face and night view of Hong Kong

Story highlights

  • Yinchuan is the capital of Ningxia province, in northern China
  • The smart city is trialing solar-powered bins that compress trash
  • Face recognition has replaced the fare box on local buses

Yinchuan, China (CNN)Like most people, I'd never heard of Yinchuan before going there.

But the Chinese officials showing me around are eager to present the capital of Ningxia province, in the north of China, as a technical marvel.
And I should pay attention: Yinchuan is intended to serve as the blueprint "smart city" for scores of urban metropolises across China.
    It also raises some serious questions about data privacy.

    When your face pays

    In Yinchuan, your face is your credit card.
    On the local buses, facial recognition software has replaced the fare box. Much like a fingerprint can unlock a smartphone, passengers' faces are linked to their bank accounts, meaning boarding isn't slowed by people fishing for exact change.
    Public trash bins are solar powered and double as compactors.
    Public trash bins that run on solar power and double as compactors, allowing them to increase their capacity five-fold, are being trialed within the city's Smart Community Project -- an occupied "living lab" which acts as a mini-city within the city. The bins send out a signal when they're full, so garbage collectors know when to empty them.
    Grocery shopping is also, potentially, a thing of the past. Residents can order food via an app on their phone and, rather than wait at home for perishables to turn up, they can pick up their shopping at centrally located refrigerated smart lockers.

    Hologram hellos

    At the City Hall, holograms -- not people -- usher in residents. A smattering of QR codes dot the walls, allowing people to get quick answers to frequently asked questions and avoid waiting in line. At a recent Yinchuan job fair, for example, job seekers scanned the codes to get quick information about job openings.
    Holograms welcome visitors to the City Hall in Yinchaun,.
    Every interaction a citizen might have with the government -- from getting a business license to renewing a passport -- takes place here. Many processes that once required face-to-face meetings have been efficiently moved online.
    That ethos applies to healthcare, too.
    Haodaifu Online is an internet portal that links doctors with patients, providing the latter with remote therapy and prescriptions. The service reduces overcrowding in hospitals and doctors' surgeries.

    Smart China

    Yinchuan's is one of nearly 200 smart city pilot projects in China.
    As the central government tries to move 250 million of its citizens from rural areas into towns and cities by 2050, it is determined to make its urban areas efficient and equipped with the technology to handle such a vast population influx.
    A refrigerated smart locker for online food orders.
    To cement its status as a "smart city" leader, Yinchuan has for two years hosted the Smart City In Focus conference, which this year attracted 1,000 delegates from 66 different countries.
    A smart city is defined as an urban settlement which marries big data, technology and urban planning, and hints at a future worthy of the Jetsons.
    "What makes China special is that they're looking to