As if they were a traffic light; Thus, this technology is being used by China to control and trace possible sources of infection and those infected with the coronavirus. This QR code technology has been carried out by Alibaba Group Holding and Tencent Holdings, together with the Chinese government, have developed a app in which you fill out a form; quite exhaustive; about your personal data, temperature at different times, places visited in the last 14 days, if you have had contact with someone affected, if you have any symptoms.
This form must be filled out by all citizens daily through their smartphones. Depending on the data provided, the app will assign you a QR code, in three different ways: green if there is no danger; orange for those who have visited risk-free areas during the previous 14 days; and red for those who must remain in quarantine. This system, with the use of Big Data crosses data with the different ministries and committees to know if you have had contact with someone infected, where you have been; with the idea of preventing contagion.
companies use QR codes in case a co-worker is infected by the virus, your code will appear red; because you will have had contact with him; The same for neighborhood developments, restaurants and public places that have this registry of QR codes.
It has even led franchises to use this technology to inform their customers that the people who have placed the food and ordered a product are below 37´3 temperature https://twitter.com/elgatochino/status/1237003044379717633?s=20
This simple, but effective technology is helping to prevent many more cases of coronavirus in cities in China; This shows that QR codes still have a lot of potential, both for the use of civic responsibilities and for companies; in this case of regulation.
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