Shake the patent

There are many ways to open doors in Ding Qian. For example, we young people can open the door through a bound mobile phone and shake it with Bluetooth to get in. People like our parents who are not good at the internet have access cards to choose from. Ding Qian intelligent access control adopts IC card as access control card, and also develops a patented encryption algorithm. The information on the card can't be copied at all, which represents the only authentication access card. In this case, there is no need to worry about criminals stealing information.