What is the green code for travel tracks? How is the trajectory of the travel code formed?

Send a text message through your mobile phone to query the itinerary of the last 15 days, and those who have not been to medium and high-risk areas are the green code of the itinerary.

The health code refers to the experience of learning from the implementation of the health code model in Zhejiang and other places to help the classified and orderly resumption of work and production, under the guidance of the E-Government Office of the General Office, Alipay is based on China's integrated government service platform, and develops China's unified epidemic prevention and control health code system.

Notice on Enabling the "Hangzhou Health Code" Scan Code Authentication Function in Public Places and Public Transportation in the City "All districts, counties (cities) and Qiantang New District, West Lake Scenic Area Epidemic Prevention and Control Headquarters, and member units of the Municipal Leading Group for Epidemic Prevention and Control:

At present, the "Hangzhou Health Code" scanning code authentication function has been developed. In order to further do a good job in the prevention and control of the novel coronavirus pneumonia epidemic in the city and ensure the safe and orderly recovery of urban operation, all enterprises and institutions in all localities should post the "Hangzhou Health Code" certification in a conspicuous position on the entrances of various communities (residential quarters), units, and public places in the city, as well as all public transportation (including taxis and online car-hailing) (see the attachment for details).

All users who have applied for a health code can directly scan the designated authentication through the "Alipay", "DingTalk", "WeChat" and other client scanning code functions for ** authentication, the authentication result is green to allow passage, and the authentication result is "red" or "yellow", it must be disposed of in accordance with the relevant regulations, and the prevention and control work must be done in a timely manner.

That is, you send a text message through your mobile phone to inquire about the itinerary of the last 15 days, and those who have not been to medium and high-risk areas are the green code of the itinerary.

At present, the rapid spread of the epidemic abroad has continued to increase the pressure on the prevention and control of the risk of imported epidemics in China. Accurately grasp the itinerary of the overseas visit of the inbound personnel.

Screening key populations from countries and regions with serious epidemics to achieve early detection, early reporting, early isolation, and early ** of patients is a key measure to strengthen the prevention of imported epidemic risks.

The "signaling data" of the mobile phone is used to obtain the user's location information through the location of the base station where the user's mobile phone is located.

The itinerary code is accurate in China, and there will be a record of staying in provinces and cities for more than 4 hours, and you don't need to fill in the information to query the cities and other countries you have visited in the first 14 days for 4 hours in China. Your itinerary is based on your mobile phone signal, and the itinerary will be displayed where your mobile phone signal has stayed.

Precautions for itinerary codes.

Passengers are required to have a health code.

In addition, there are medium- and high-risk areas of the epidemic within 14 days.

Passengers with a history of travel or residence are required to have a negative nucleic acid test within 48 hours.

Certificate to enter the station to board the train.

You must wear a mask, you need to hold a health code and a travel code to enter the station, all of which are indispensable, and if you don't have a health code, you can fill in the paper version of the "Personal Health Declaration Card" and "Letter of Commitment" on the spot.

Or the companions of the sedan car excite the cave to apply for it in advance with their mobile phones (currently support parents, husband and wife, children, and kinship.)

The working principle of the itinerary code is actually very simple, that is, by analyzing the mobile phone signaling data and CDR data to determine which city you have been in contact with the base station.

In the process of using mobile phones, whether it is calling, texting, or surfing the Internet, you need to connect to the base station, and the specific information of each base station, including location and number, the operator is clear.

Trips less than 4 hours are recorded, which may be due to a deviation in the service data of the itinerary card. Passing through a city for no more than 4 hours, generally there will be no record, if you find that the Xingzhigao dispatch card turns yellow, you should call ** to the operator of the mobile phone number to appeal, asking it to correct the itinerary information.

What is the itinerary card

The full name of the itinerary card is "communication big data itinerary card", which is a free query service provided by the China Academy of Information and Communications Technology for the national mobile phone use of the mind, which can query the information of the cities visited in the previous 14 days.

The itinerary card is obtained by the three basic telecommunications companies of China Telecom, China Mobile, and China Unicom, through the base station where the user's mobile phone is located.

In September 2021, the national government service platform integrated the health code and the itinerary code into a "one-page check", and when you open Alipay's health code, you can see the Xingmeng He Cheng code.