The communication itinerary card, also known as the epidemic prevention itinerary card, has been providing services for the people of the whole country for nearly 25 months since it was launched at the end of February 2020, which is convenient for mobile phone users to travel healthily during the epidemic.
It is undeniable that in the technical support of epidemic prevention and control, the green code and the epidemic prevention itinerary card have really made great contributions, and they want to maintain a normal rhythm of life during the epidemic period. However, in the near future, Xiaobian found that although the voice is very small, some netizens have encountered some problems when using the itinerary card query service.
For example, some people live at the junction of cities, and the receiving signal is in a roaming state, so the itinerary is biased; some people live well in a city and suddenly "off-site" one day. Therefore, some netizens questioned whether the epidemic prevention itinerary card based on mobile phone number positioning is really accurate?
Is the epidemic prevention itinerary card accurate?
Let's first look at the Baidu description of the epidemic prevention itinerary card - it is based on telecom big data, provided by the three major operators, and mobile phone users can query all the city information I have visited in the first half month through the service.
It can be seen that, first of all, this function is not a system developed by small enterprises, but a product of the collective research and development of the Institute of Information and Communications Technology organized by the Ministry of Industry and Information Technology and the three operators, which is very secure in system development. If you are not prepared, how can you successfully integrate into the daily life of 1.6 billion people in the country?
Just as the so-called contradiction of all things has its universality and particularity, Xiaobian believes that the accuracy of the epidemic prevention itinerary card is its universal characteristic. So the particularity of its positioning bias, what is the problem?
Why does the epidemic prevention itinerary card have positioning deviation?
The scanned itinerary code is located through the mobile phone, and the analysis of the itinerary card is the mobile phone signaling data, both of which are obtained through the base station location of the user's mobile phone to determine the user's travel trajectory. In the meantime, if the user lives close to the city boundary, or long-distance self-driving, taking a train, etc., there may be a situation of positioning deviation.
Is this positioning bias common? In order to avoid the location deviation caused by the base station in adjacent cities, the itinerary card sets the judgment condition of meeting the 4-hour stay, so if you stay in a city for less than 4 hours, it will not be recorded.
If some users are worried that because of the positioning deviation affecting the work plan of the province or going to the field, it is actually unnecessary, and the method of checking the defects and filling in the gaps has long come out, that is, measuring nucleic acid, starting to test once, testing again at the destination, and the nucleic acid certificate is in hand to solve all problems.
As for the situation of "being off-site", Xiaobian suggests that you can go to the business hall to check whether your number is a second-hand number that has been used by someone, so that the staff can delete the information record and then resume normal use.
Final conclusion
1. Although the three companies have their own slots, but in the epidemic prevention and control and other social responsibilities of the responsibility is really not to say, after the outbreak of the epidemic, the three in a very short period of time to set up a big data support epidemic prevention and control special working group, the relevant staff from top to bottom to give up vacation, not willing to fight day and night, from ordinary communication support to epidemic prevention system research and development, quickly support the epidemic prevention and control big data demand.
2. Looking at the world, from the perspective of human energy control, domestic epidemic prevention and control measures must be the most rigorous and perfect, and staff in many industries such as medical treatment, communications, and security have made considerable efforts and even sacrifices.
Suddenly sighing, the real discomfort is still the generation of young people after 00, the green years in the ivory tower are a total of more than ten years, and the epidemic accounts for three years. I hope that the epidemic will subside as soon as possible and world peace.