Data backup: the local data storage inside the industrial IoT gateway can work as a local database, saving acquired data in its own memory to prevent data loss, and constitute a double backup with the platform. The platform may access past data at any moment.
When the 4G base station/WiFi/Ethernet fails or is being serviced, the platform loses connectivity with the site, but the IIoT gateway can continue to collect and retain data on site. After connection is restored, data can be actively uploaded to the platform from the point of disconnect to ensure the integrity of fundamental data.