The health code is based on real data, which is declared by citizens on the Internet. After background review, the personal QR code can be generated. As an individual entering and leaving electronic certificate locally, the QR code can be declared once, which is universal in the whole city. The introduction of the health code aims to make the work of returning to work more accurate, scientific and orderly.
On March 5, 2020, the draft of the Reference Architecture and Technical Guide for Epidemic Prevention Codes was reviewed by the expert review meeting and formally submitted for approval. The promulgation of this standard provides technical specifications for the development enterprises of epidemic prevention codes, and regulates and requires the functions required for personnel management, authorization management and collection point management of epidemic prevention code users. On April 29, 2020, the General Administration of Market Supervision (Standards Committee) issued an announcement, releasing a series of national standards for personal health information codes. This series of standards adopted the quick procedure of national standards, and it only took 14 days from project establishment to publication. After the implementation of this series of national standards, the coding system, display mode and data content of personal health information codes can be unified, and the protection of personal information and the enjoyment and utilization of information can be considered as a whole, which is suitable for guiding the design, development and system integration of health code-related information systems. The application scope of health code covers community management, resumption of business, transportation, starting school, drug purchase registration, supermarkets and shopping malls, which can help communities, enterprises and schools to do key work such as epidemic prevention management and epidemic control. In the prevention and control of epidemic situation and resumption of production, health code can realize efficient personnel flow management, improve the inspection efficiency of office buildings, shopping malls, subways, railway stations and other crowded places, and avoid excessive personnel contact and gathering.