Unified DPI refers to a group of DPI devices, which are used to collect and identify the traffic on the link and distribute the traffic or analysis statistics required by other systems to the third-party application system server. Various application systems related to traffic management in the network, such as inter-network traffic control, Web caching, illegal VoIP detection, online log retention, etc., are mainly composed of DPI devices and application servers.
Among them, DPI equipment is responsible for data collection, traffic analysis and statistics, and log synthesis, and the application server is mainly responsible for further analysis and processing of data, reasonably organizing and storing data, and presenting them. Unified DPI integrates DPI devices of multiple third-party application systems, and provides DPI capabilities for multiple systems through DPI multiplexing.
For example, the DPI of a mouse refers to the number of pixels that the mouse pointer moves on the screen when the mouse moves 1 inch (25.4 mm) on the desktop. If your mouse is set to 900DPI, the mouse pointer will move 900 pixels on the screen every time the mouse moves 1 inch (that is, about 2.5 cm) on the desktop.
For the most common 1080p resolution display, you need to move the mouse on the desktop 1920/900*25.4 about 54. 1mm to move the mouse pointer horizontally from the left side of the screen to the right side of the screen.
When the mouse DPI is 900, the moving range of the mouse is 24/900*25.4=0.68mm, the short side is 22/900*25.4=0.62mm, and the area is 0.68*0.62=0.42 mm, which is about the size of a millet.
Compared with a mouse with 400DPI, (24/400 * 25.4) * (22/400 * 25.4) = 2.13mm2.