Health code can become a tool to prove whether an individual is healthy relative to the epidemic situation by analyzing the data of health, work letter, transportation and so on. Through the color of the health code, you can quickly identify whether a person has passed through provinces and cities with serious epidemic situation and directly or indirectly contacted infected people in COVID-19.
Then through big data analysis, people who may be infected by COVID-19 can be found directly and pertinently, and the intelligent level of epidemic prevention and control work can be improved.
"Travel Code" was launched by China Information and Communication Research Institute in conjunction with three major operators. It uses the data received by China Telecom, China Mobile and China Unicom to obtain information through the location of the base station where the user's mobile phone is located, and provides free inquiry service for the 654.38+600 million mobile phone users nationwide. Support one-click query of all city information visited within 14 days.
By analyzing the location and movement trajectory of the mobile phone through the base station, it is proved that the tool of personal travel trajectory can analyze and judge whether the user of the mobile phone number passes through the high-risk area, and then effectively take corresponding epidemic prevention measures.
Introduction:
1 has different uses.
Travel cards are used to help users who have returned to work prove the areas they have been to recently, and are used in airports, railway stations, highways, communities, schools, hospitals and other public places.
Health codes are based on real data and can be generated by citizens or people who have returned to work through online declaration and background audit.
2. The content is different.
Travel itinerary includes countries (regions) that residents have visited within 14 days and domestic cities that have stayed for more than 4 hours. Color cards only remind the places to visit, and have nothing to do with health status, and are not colored.
According to the data integration of personal health information declared by COVID-19 residents and national epidemic prevention data information, health codes are divided into three categories: red, yellow and green.