가변QR 시연:
https://youtu.be/zFeYg1RLBps
가변QR 상세정보:
https://www.Bizworks.co.kr
YTN링크
http://www.ytn.co.kr/_sp/1208_201711280100285396
사례링크
https://www.gov.uk/foreign-travel-advice/china/safety-and-security