Smart video doorbell is an integrated visual access control device for prefabricated electrical rooms, substations, wind farms and industrial base gate areas. It supports real-time video call, remote viewing, infrared night vision, visitor snapshot and access linkage functions. IP65 waterproof and dustproof housing adapts outdoor industrial environments. Equipped with stable network communication, which can be connected to the central monitoring platform to realize identity verification of incoming personnel. Effectively improve access safety management of unattended power facilities. Wired and optional solar power supply versions are available for global energy engineering projects.