At 2:00 p.m. today (September 28), Guangzhou Metro Line 18 was officially put into operation. As the first subway in Guangzhou to support face recognition through the gate, the entire line of Line 18 gates are face recognition gates, after testing, a single channel can pass more than 30 people per minute without feeling, passengers can brush their faces when entering the subway station without feeling and quickly pass through the gates, and when leaving the station, they only need to brush their faces to leave the station, and the ride fee will be automatically deducted, truly realizing the brush face ride, full of science and technology. Recently, a reporter from Guangzhou Daily Xinhuacheng visited the provider of line 18 brushing plan to reveal the scientific and technological elements behind line 18.
□ A single passage has more than 30 people per minute without sensory traffic
Urban rail transportation has maintained rapid development for a long time, and the flow of people is becoming increasingly large, in this case, the advantages of brushing face riding are increasingly prominent, such as high efficiency, high safety, no contact, good experience, and easy use of young and old. In the actual scenes of each subway station, the high accuracy of the front-end recognition camera, the fine recognition and comparison of the large library under the condition of huge traffic, and the strict requirements for safety in the process of riding payment are the actual challenges. In fact, the subway lines that have opened for face brush rides still have many restrictions on the flow of people and the scope of traffic.
Taking Guangzhou as an example, according to data from the beginning of September this year, the average daily passenger flow of the Guangzhou Metro is about 8 million. Under such a huge passenger flow, it is necessary to have the technical ability to support the accurate comparison of tens of millions of large libraries, and the guarantee of identification accuracy and traffic efficiency is not easy to achieve.
Line 18 brush face riding plan by Jiadu Technology and Lu Shenshi to provide, Lu Shenshi rail transit program engineer Jia Lin for reporters to introduce, for Metro Line 18, Lu Shenshi launched a smart subway brush face riding solution based on three-dimensional full-stack technology, can achieve a single channel per minute without sensory traffic into the station more than 30 people efficient passage, is the real meaning of "seconds over". "Not only that, under the actual combat conditions of complex lighting and obstruction, it can still fully meet the high precision and high-pass efficiency required by the subway in first-tier cities, and empower the efficiency of the 'last kilometer' of subway riding by improving the efficiency of entering and leaving the station." Jarin said.
□ is more than fast, opening the era of intelligent and efficient operation
Jia Lin introduced that the solution of Line 18 brushing face ride is composed of a front-end 3D structured light camera module, a front-end face algorithm and a back-end large library comparison engine. High-precision 3D structured light camera designed for large libraries and large traffic, millimeter-level high-precision restoration of 3D stereoscopic size details, improve the traffic experience; 2D + 3D multi-modal large library comparison engine, in addition to relying on face 2D color texture information, but also rely on face 3D size information for identification, equivalent 1:1 misidentification rate is less than one in ten trillion, accurate identification of tens of millions of people, to ensure accurate boarding billing; fast and insensible passage, improve the efficiency of station entry, so that the "fast" of high-speed subway is reflected in all aspects, Tens of millions of large-scale libraries to achieve 100 milliseconds level recognition and comparison; financial-grade front-end anti-counterfeiting security algorithms have been certified by BCTC (National Bank of China Credit Card Testing Center) to prevent high-imitation masks, head models, high-definition photos, anti-glasses and other attack methods, and strictly abide by the "pocket" security.
The country's first high-speed subway is not only fast, with the deep landing of the smart subway face brush ride solution, three-dimensional visual technology will effectively enhance the happiness of people's subway travel. The elderly who are not good at using smart devices can also go to any location freely by brushing their faces, and passengers carrying large bags and small bags do not have to specially free their hands to swipe their cards, scan the code through the gate, and will not cause congestion at the station, and families with children will become easier.
In between, using the power of science and technology to enhance the happiness of the people is exactly what Guangzhou is doing step by step.
Text, photo/Guangzhou Daily Xinhuacheng Reporter: Huangqing Guangzhou Daily Xinhuacheng Editor: Su Wanqian