Choosing a poorly performing QR code scanner module to be embedded in the machine, even in the best scanning environment, it will be particularly difficult to scan paper or mobile phone barcodes. It may seriously degrade the performance and experience of the device.
Shenzhen popular scenic spot has the introduction of QR code electronic ticket system, visitors can wisdom fare gate QR code reader directly scan code to achieve a convenient admission ticket, avoid queuing ticket troubles.
Subways, office buildings, campus libraries all over the place because of the economic or personal control of the reasons, need to authenticate the identity to pass the turnstiles of the gates
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