"Digital Sentinel" at work.

Photo by Chen Congyao

(Fighting against New Coronary Pneumonia) Keeping the "Shanghai" Log: "Digital Sentinels" weave an "epidemic prevention network", Shanghai lays out normalized epidemic prevention and control

  China News Service, Shanghai, May 5th (Chen Congyao) At the entrance of the Xuhui store of Shanghai Carrefour Supermarket, the "digital sentinel" is busy on duty. Customers show the application code and they scan it, health code, body temperature, antigen report, nucleic acid report and other information It immediately showed that everything was normal, and the "Digital Sentinel" released: "Thank you, please pass."

  "Digital Sentinel" is an all-in-one device with health verification function launched by various places based on the authoritative data service provided by the city's big data center in accordance with the requirements of Shanghai's epidemic prevention and control, including handheld version, column board, desktop version, and gate version. and other forms.

By scanning the "Sui Shen Code" or reading the ID card, the relevant health verification and quick access to the venue can be automatically completed.

"Digital Sentinel" at work. Photo by Chen Congyao

  In early April, Shanghai began to implement the "site code" and "health verification integrated machine" (also known as "digital sentinel") scanning code access measures throughout the city.

  "Our offline store opened on May 2, and 1,045 people came on the first day and 1,158 on the second day," said He Yan of the Xuhui store of Carrefour Supermarket.

The night before the resumption of business, the store urgently installed "digital sentinels".

Compared with manually checking the site code, nucleic acid report and body temperature step by step, the "Digital Sentinel" displays all the information in a few seconds, which is more efficient and safer.

  And this is just an application scenario of "Digital Sentinel", which can also be used in multi-scenario applications in combination with enterprise resumption of work and digital flow adjustment.

Through various network lines and terminals, epidemic prevention-related information is collected, resulting in a huge "epidemic prevention network" that protects the entire Shanghai citizens.

  "Shopping malls, schools, communities, office buildings... Anyway, they have all been installed. This is to prepare for the unblocking and resumption of work and production." Han Jianshi, an installation and maintenance officer at the Shanghai Telecom Southern District Bureau, said.

Judging from the installation situation, the current residential and shopping malls have the most urgent needs.

Han Jianshijiao community staff use hand-held "digital sentinels".

Photo by Chen Congyao

  Both development and implementation are indispensable steps in the formation of a "digital sentinel". In early April, when they learned that the "digital sentinel" was to be developed, the first reaction of the Shanghai Telecom R&D team was excitement, "We have the opportunity to do epidemic prevention for a mega-city like Shanghai. Everyone is very excited about things," said Zhang Jian, head of the Shanghai Telecom Capability R&D Center.

  But there are many questions: which member is responsible for the performance, function, and safety lines?

It is impossible for 25 million people to swipe codes at the same time, so how to determine the "concurrency" of the program?

From swiping code to displaying information, how to shorten this time and improve network transmission efficiency?

What encryption method is used to make data transmission more secure?


Handheld "Digital Sentinel".

Photo by Chen Congyao

  Task division, program debugging, code writing... A team of 40 people went through uninterrupted online meetings. One day later, "Digital Sentinel" completed the research and development.

  With the "Digital Sentinel" enabled, the management of entry and exit of key places will be more convenient, and the epidemic prevention and control will be more accurate. The verification of information related to epidemic prevention and control can be completed in a few seconds. Tuning and precise investigation.

  At the same time, in accordance with the principle of minimum enough, Shanghai Big Data Center strictly manages all scan code records to protect the privacy of citizens.

Handheld "Digital Sentinel".

Photo by Chen Congyao

  According to Shao Jun, deputy secretary of the Party Committee of the Shanghai Big Data Center, the implementation of "site codes" and "digital sentinels" in key places is an important measure to implement normalized epidemic prevention and control.

  At present, a total of 294,300 units in the city have applied for 466,700 "site codes", and 6,656 "digital sentries" have been deployed.

With the improvement of the epidemic prevention and control situation, the number of "site code" applications and the number of daily code scans have increased to a certain extent, and the installation of "digital sentinel" equipment is also progressing steadily.