Fixed Network Access Device (FNAD) for Wireless-to-TCP/IP Communications
The U.S. Navy developed a fixed wireless bridge that enables bidirectional communication between IEEE 802.15.4-based end devices and TCP/IP networks.
In order to improve global cargo container security, SSC Pacific developed custom network protocols, Fixed Network Access Devices, and Handheld Network Access Devices which included an Android-based mobile app. These technologies allow for the monitoring and control of IEEE 802.15.4-based electronic locks and security devices on shipping containers throughout the global supply chain. The Fixed Network Access Device is described below.
SSC Pacific’s Fixed Access Network Device (FNAD) includes a processor with memory, a radio frequency transceiver, and an antenna. Using custom network protocols, the FNAD transmits a Network Access Device Announcement (NADA) to initiate passive network discovery among 802.15.4-based security devices. When a security device receives a NADA, it initiates and establishes communication with the FNAD. The FNAD then forwards, in real-time, device status messages to a Data Center via TCP/IP. Passive network discovery and other features allow battery conservation in security devices. The FNAD has potential applications in wireless sensor networks, mobile health devices, security networks, and home automation networks.
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- SD 1239, June 2014. SSC Pacific, San Diego, CA 92152–5001. Approved for public release; distribution is unlimited.