Abstract: 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.

Abstract: A system includes a microstructure layer, a photovoltaic layer disposed over the microstructure layer comprising a positive P-type layer and a negative N-type layer, a hydrogen collection micro-chamber formed through the microstructure layer and the negative layer, and an oxygen collection micro-chamber formed through the microstructure layer and the photovoltaic layer. A cathode may be disposed within the hydrogen collection micro-chamber and an anode may be disposed within the oxygen collection micro-chamber. The micro-chambers may be spaced between about 1 and 10 micrometers apart. An insulating layer may be disposed between the microstructure layer and the photovoltaic layer. A supplemental storage layer may be disposed over the photovoltaic layer such that a storage portion is in alignment with the hydrogen collection micro-chamber. MEMS actuators may be located at the ends of the hydrogen collection micro-chamber to facilitate hydrogen storage and release.

Abstract: Physiological conditions of a plurality of individuals are monitored by using signals provided by sensors on each individual. Each individual has, positioned in close proximity to the individual, one or more sensors for sensing a physiological condition of the individual. A control module is capable of communicating with an external communication station and with the sensors. A wireless networked communication link is established between the control module and the external communication station. Indications of the physiological conditions for a plurality of individuals or physiological conditions derived from the physiological sensors, are transmitted on the wireless networked communication link to the external communication station.

Abstract: In one embodiment, a wireless bridge for wireless to TCP/IP based communication is provided. The wireless bridge can be with reduced functional devices (RFDs) in a star topology network acting as a network access device (NAD). Another embodiment can be with fully functional devices (FFDs) in a peer-to-peer topology network also capable of operating as a NAD. The network address device includes a processor with memory; a radio frequency transceiver front end communicating with the processor; an antenna coupled to the front end; and a power source providing power to the processor and front end wherein the processor with memory contains computer instructions for executing IEEE 802.15.

Abstract: A wireless intermediate functional device (IFD) for wireless communication between reduced functional devices in a star topology network having a central coordinator capable of operating as a network access device (NAD), and with fully functional devices in a mesh topology network also capable of operating as a NAD is described. The IFD is a wireless system that executes IEEE 802.15.4 standard compliant operations and operates as an intermediary between non-compatible devices. Various communication and protocol handshaking and management is facilitated by the IFD, allowing end devices in heterogeneous networks to communicate.

Abstract: Detection of a breach in security of an enclosure, such as a shipping enclosure, is indicated by detection of a change in a closed status. A detector enclosure is provided with a window opening in the detector enclosure. A reference body having an image slit is accessible from within the detector enclosure, and a radiation detector is used to alternately receive radiation through the window opening in the detector and from the reference body through the image slit. An indication of the two received radiation levels or a difference between the received radiation levels is used to provide an indication of a change in the closed status of the enclosure.