Whether the QR code access control system can support visitor management depends on whether the system has a software background and whether it has management functions. A set of two-dimensional code access control system that can support visitor management, specifically requires the following functions: 1. Support the identification of dynamic QR codes; 2. Support one-click sharing of communication software such as QR code mobile phones, and the shared QR code is time-sensitive; 3. The permissions of visitors and users are different; 4. There is a background management software, which can monitor the entrance and exit in real time. The static QR code access control system, due to the immutability of the QR code, is easy to be stolen maliciously and cannot be better for visitor management. Therefore, the QR code access control system with visitor management must be a dynamic QR code. More convenient and safer. The dynamic QR code will be refreshed in real time, and even if it is stolen, it will become invalid within a certain time limit, which is more secure. The Cyberros QR code access control system has the function of supporting the identification of the dynamic QR code. The QR code of the static QR code access control system cannot be shared. Once shared, it will cause great losses due to the immutability of the QR code. Therefore, the QR code access control system with visitor management must be able to support mobile phones. Such as communication software one-click sharing, and the shared QR code is also time-sensitive, to ensure the maximum security of the shared QR code, the Cyberros QR code access control system has the function of one-click sharing of dynamic QR codes. There are two ways for visitors to obtain QR codes. They can obtain a time-sensitive QR code for sharing from the interviewee, and they can also obtain a temporary QR code after registering at the management office to ensure a distinction between visitors and users. Can guarantee the safety of users. Through the background management software, the information of visitors can be managed, and temporary visitors can be registered and temporary QR codes can be issued. The timeliness of the QR codes can be customized to prevent visitors from staying for a long time and achieve real-time monitoring of entrances and exits. Burrows QR code access control system has the function of real-time monitoring of entrances and exits. Flange is also called flange plate or flange plate. Cold Galvanizing Flange,Bspt Flange,Screwed Flange,Bspt Flange Jinan Xintai Forging Co., Ltd , https://www.xtdzflange.com
The part that connects pipes to each other. Connect to tube end. There are holes on the flange, and bolts can be threaded to make the two flanges tightly connected. The flange is sealed with gasket.