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The subway has entered the “new era†of the brush code ride! Then, how is the transformation of the subway QR code realized? How should the traditional subway gate manufacturers choose?
"Internet +" subway gate industry
The subway gates are part of the AFC system. In the late 1990s, only the Shenzhen Gaoxin Modern and Nanjing Pandas were working in the subway gate industry. After the talents of the two Whampoa Military Academy, there are already hundreds of companies in this blue sea. Silent growth, however, with the ants Jinfu, Tencent and other employers, UnionPay, the Ministry of Communications and other national teams joined the battle, adding two-dimensional code payment function has become the biggest explosion point in this traditional industry.
Through strategic cooperation with the MTRC, the employer provides funds to customize the gates to the equipment manufacturers free of charge. Ordinary users use the mobile phone to scan the code to facilitate the ride. The fare temporarily exists on the platform of the employer to generate revenue, forming a rare “four wins†situation in commercial cooperation. At the same time, as a device manufacturer, if you can't follow up the new direction in time, it will be difficult to survive.
Figure 1 Scanning Payment
Cloud payment standard landing
At present, the subway gates supporting the two-dimensional code function have been launched in Beijing, Shanghai, Shenzhen, Guangzhou, Chengdu, Zhengzhou and other places. In 2019, all new subway lines in the country will support the two-dimensional code cloud payment function. Some first-tier cities took the lead in drafting the cloud payment read-write module specification requirements, which stated:
1. The reader can at least meet the rail transit AFC system, public transportation card, NFC mobile payment application based on PBOC 3.0 specification, UnionPay ODA physical card, UnionPay ODA mobile phone PAY, offline QR code key system.
2. The reader should be able to process non-contact IC one-way tickets, stored value tickets, NFC mobile payment application based on PBOC 3.0 specification, UnionPay ODA physical card, UnionPay ODA mobile phone PAY, and a certain iron APP QR code.
3. The read/write module has dual RF connectors, which are compatible with the reading and writing of RF cards conforming to ISO14443-1-2-3-4 (TYPE A&B) and Miafre Classic series.
4, the main components use industrial grade devices, temperature range is -20 ° C-65 ° C, humidity range: 10% -90%, including but not limited to CPU, memory, flash, memory chips.
Figure 2 Standardization
Subway gate cloud payment implementation plan
In 2018, the way of reading the card of the subway gates ushered in a nationwide upgrade. Compared with the NFC card reading method of the traditional subway gates, the subway gates that support the QR code scanning function no longer need the mobile phone to support the NFC function. Car discount. The two-dimensional code upgrade of subway gates is mainly divided into the upgrade of traditional subway gates and the construction of new subway line gates. The biggest difference is: upgrading from traditional NFC readers to readers supporting UnionPay and QR codes.
Figure 3 Ordinary gate and two-dimensional code gate
Subway gate reader reader solution based on Cortex-A9 core board
Due to the strong regional nature of the subway gates, the technical schemes adopted in each urban area are not uniform, but the national technical indicators are basically unified, namely “1G frequency, 1G memory, 4G eMMC†(some forward-looking cities require higher).
Figure 4 Metro gate reader reader solution based on Cortex-A9 core board
As shown in the above figure, the frame view of the subway gate reader project, the interface function is relatively simple. The subway gate reader mainly includes the following functions: QR code recognition withholding fee system, NFC card reading fee system, PSAM card key reading identification, one-way ticket recovery system, gate master communication system, fault Features such as instructions and voice announcements.
Zhiyuan Electronics Cortex-A9 core board advantage
The main advantages of the Zhiyuan Electronics Cortex-A9 core board applied to the subway gate reader in the subway AFC system are as follows:
l Main frequency up to 1GHz, 1G capacity memory, 4G onboard eMMC storage and backplane support 4~32G storage expansion;
l Support -20 ° C ~ 70 ° C operating temperature, -40 ° C ~ 85 ° C storage temperature, fully meet the technical requirements of subway gates;
lCortex-A9 platform can reach 1M frequency through IO reversal, which can realize the rapid response index of subway gates;
l High-speed communication bus SPI can support 50M transmission rate, which can effectively guarantee the reading time of PSAM;
l Unified hardware interface, can realize seamless switching of all Zhiyuan electronic Cortex-A9 core boards, which is beneficial to the metro AFC system adopting a hardware platform to adapt to the needs of different cities, and achieve full compatibility of application software.
Figure 5 A9 core board
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