Because of Hong Kong, Macao and Taiwan, the "Entry Personnel _ Health Code" (GHC) of foreigners does not support the location code for the time being. Therefore, when people from Hong Kong, Macao and Taiwan and foreigners take public transport, they can show the negative proof of nucleic acid within 48 hours or the record of nucleic acid sampling voucher within 24 hours and the green code of health code without scanning the place code.
"Location code" is a proprietary two-dimensional code used by people to enter key locations, and it is an independent identification code of Hunan residents' health code in relevant locations. Through Alipay, the personnel actively scan the "place code", complete the place entry and registration, and automatically display their own health code. "Place Code" is a proprietary two-dimensional code generated by the "Health Code" system for key places. After scanning the "place code", it is actually the bright code display of "health code", and it is not necessary to scan the code repeatedly. Travel is convenient. Automatically register the information of people entering and leaving the place through the "place code" and inquire the status information of "health code" of people entering and leaving the place at the same time; After scanning "Location Code", the system will automatically jump to the health status information of "Health Code" without repeating the bright code. In the case of local epidemic situation, you can quickly contact other people who have scanned the "site code" through the scan code records of confirmed cases or close contacts in COVID-19, which is convenient for relevant departments to conduct accurate retrospective investigation and avoid the spread of epidemic situation. At present, managers of places require people to register their information manually. Compared with manual information registration, the application of "location code" can reduce the transmission level and the number of people handling personal sensitive information.