Advanced container security device network protocols

摘要

In one preferred embodiment, a set of air interface protocols (AIPs) provides a method for secure wireless-to-IP communication between conveyance-mounted security sensors and one or more remote data consolidation centers employing a global ad-hoc network topology, comprising one or more on-conveyance sensing devices; one or more on-conveyance wireless communications devices; one or more wireless-to-IP bridging devices; one or more internet-addressable remote data centers; wherein the remote data center contains computer instructions for: commanding secure AIP-compliant operations; and maintaining a data base of security sensor-related events interfacing to an encryption key management facility.

主权项

1. A method of providing secure wireless-to-IP communication, in a system including a set of air interface protocols (AIPs), between conveyance-mounted security sensors and one or more remote data consolidation centers employing a global ad-hoc network topology, the method comprising:
providing one or more on-conveyance sensing devices; providing one or more on-conveyance wireless communications devices; providing one or more wireless-to-IP bridging devices providing one or more internet-addressable remote data centers; wherein each remote data center contains computer instructions for:
commanding secure AIP-compliant operations;maintaining a data base of security sensor-related events interfacing to an embedded or external encryption key management facility, wherein the AIP enables a distributed battery-powered sensor network to:
conduct passive network discovery;passively check for waiting data;conduct RF spectrum scan for optimal battery conservation;employ a network access device announcement message based on the IEEE Standard 802.15.4 data frame to maximize payload size;enable use of CSMA/CA for transmission medium access;enable end-to-end encryption between distributed sensor network and remote data center(s) independent of transport layers;employ variable network access device announcement intervals for optimizing battery conservation strategy of distributed sensor network; the set of AIPs further comprising:a connectionless wireless secure wireless network that eliminates all network management messaging and requires no device association and which allows for;connectionless message exchange wherein computing capability and resources of the end devices are highest among all devices comprising the connectionless network;connectionless message exchange from end devices whose addresses are unknown by network access device in advance;connectionless message exchange supporting network discovery and status message exchange requirements for end-devices randomly moving in and out of network access device coverage;connectionless message exchange implementing a set of reduced MAC-layer messaging protocols to minimize RF channel traffic and coexistence with commercial standard 802.11 systems;connectionless message exchange while adhering to a tag talks last guidelines for international commercial shipping environments.