Intelligent Door Lock Firmware Update via Local Packet Storage

The patent implements preliminary action by downloading and storing firmware update packets locally in the door lock system's memory before they are needed. The system receives complete firmware updates via internet connection when available, stores them locally, and can then execute updates even when internet connectivity is interrupted or unavailable during the update process. This eliminates the vulnerability to internet disruptions while maintaining update reliability.

The patent applies partial action by implementing selective acknowledgment mechanisms. Instead of requiring acknowledgment for every single packet, the system uses acknowledgments strategically at critical points in the transfer process. This maintains sufficient update accuracy while significantly reducing the total communication time compared to strict per-packet acknowledgment protocols.

The patent replaces the mechanical cabling system with wireless communication technology. The door lock system and camera units communicate firmware updates and data via wireless protocols (such as Wi-Fi or Bluetooth) instead of requiring physical cable connections. This substitution maintains data transmission stability through protocol error correction while dramatically simplifying installation by eliminating the need for complex cabling routes between devices.