EPFast APP, Make Video Surveillance Installation Simple. This is a professional network engineering tool that supports video capture, viewing, setting of IP address, channel name, etc. for the camera based on the ONVIF protocol IPC; the APP is connected to the EPFast tool through WIFI. It allows engineers to quickly diagnose and deploy the network on the mobile APP, providing a professional, simple, visual, safe and convenient network engineering tool for the majority of weak power engineering and network operation and maintenance personnel.