Abstract: A method of reducing server overhead in responding to requests for downloads from devices includes the steps of receiving, at a first device, a communication from a server regarding a request for download that the server has received from a second device; in response thereto, using virtualized network capabilities of a virtual machine of the second device, establishing a network connection with the first device using connection information received from the server; fulfilling the request for download by transferring data via the established network connection; and communicating an indication of fulfillment of such request to the server.

Abstract: A HAZMAT monitoring system detects a plurality of different hazardous materials and includes first and second pluralities of RSIs. Each RSI of the first plurality forms a node in a first wireless sensor network and is associated with a mobile container and with at least one sensor that is configured to acquire data for detecting a first hazardous material. Each RSI further is configured to receive the sensor data and wirelessly transmit, over the first wireless sensor network, data relating to the received sensor data pertaining to the detection of the first hazardous material. Each RSI of the second plurality is similarly associated and configured. Communications within a respective wireless sensor network do not result in communications within the another wireless sensor network. A gateway is configured to independently communicate with each respective wireless sensor network.

Abstract: Each of a plurality of network nodes in an ad hoc mesh network utilizes a data communication device that includes a two-way communications component, comprising a first receiver and transmitter, and a second receiver. The second receiver activates the communications component from a dormant state when it receives a broadcast including a wake-up identifier of the communication device.

Abstract: A method of securing a container includes inserting, into a seal device at a container, an electronic bolt; reading, by the seal device, a serial number stored in the electronic bolt; communicating, from the seal device, to a user application, insertion of the bolt; scanning, by the user via a handheld device, a barcode on the seal device representative of an identification of the seal device; communicating, from the handheld device to the user application, the identification of the seal device; inputting, by a user at the container via the handheld device, information associated with the container; communicating, from the handheld device to the user application, the information associated with the container; associating, in a database by the user application, the information associated with the container with the bolt serial number and the identification of the seal device; communicating, by the user application, a confirmation to the seal device.

Abstract: A method of forming ad hoc RSI hierarchical communication networks among pluralities of wireless transceivers includes assigning to each of the transceivers one or more common designations. A network organization routine of the transceivers operates to establish hierarchical networks based on the transceivers' common designations, resulting in a logical network organization that provides efficiencies for acquiring information from particular transceivers that share a common designation. Each transceiver's common designation is used by a digital processor of the transceiver to selectively receive data packets that are intended for receipt by transceivers sharing the particular common designation. Such a “common designation” network reduces power consumption and signal interference thereby increasing battery life.

Abstract: A method includes detecting, at a device, a request for a network connection from an application running on the device; spawning first and second virtual machines for network connections that virtualize network capabilities of the device such that first and second virtual network connections are provided; using the first virtual network connection, establishing a first connection with another device over a first path; using the second virtual connection, establishing a second connection with the other device over a second path; determining that the second path represents a trusted path; determining that a first packet does not need to be routed via a trusted connection; transmitting the first packet using the first virtual network connection for communication via the first path; determining that a second packet needs to be routed via a trusted connection; and transmitting the second packet using the second virtual network connection for communication via the second path.

Abstract: A method of providing network communications using virtualization includes steps of creating a virtual machine instance that runs on a device and that virtualizes network capabilities of the device such that a virtual network connection is provided, detecting a request for a network connection from an application running on the device, determining application-specific information associated with the application, using the application-specific information associated with the application, selecting a routing protocol from among a plurality of available routing protocols for communicating data from the application over a network using the virtual network connection, and, using the selected routing protocol, communicating data from the application over the network to a device using the virtual network connection of the virtual machine instance.

Abstract: A method includes detecting, at a first device, a request for a network connection from a first application; spawning a first virtual machine that virtualizes network capabilities of the first device such that a first virtual network connection is provided; selecting a first routing protocol for the first virtual network connection; detecting, at the first device, a request for a network connection from a second application; spawning a second virtual machine that virtualizes network capabilities of the first device such that a second virtual network connection is provided; selecting a second routing protocol for the second network connection; using the selected first routing protocol, communicating data from the first application to a second device using the first virtual network connection; and using the selected second routing protocol, communicating data from the second application using the second virtual network connection. The first and second routing protocols are different routing protocols.

Abstract: An RF addressable sensor network includes one or more RF addressable sensors; one or more wireless sensor readers coupled to a communications network; and one or more end user devices coupled to the communications network. The one or more wireless sensor readers communicate with the one or more RF addressable sensors to obtain sensor data for transmission over the communications network. A wireless sensor reader includes at least one antenna configured for communication with the one or more RF addressable sensors, a controller, a network communications module coupled to the controller, the network communications module having an interface for coupling to a communications network, a logic module coupled to the controller, and a user interface. The logic module includes a sensor communications module for receiving sensor data from the one or more RF addressable sensors.

Abstract: A method for communicating to a recipient transceiver from a plurality of transceivers located within the broadcast range of the recipient transceiver includes: transmitting a communication at a first power level such that only a first group of transceivers receive the broadcast, the communication including a command causing each of the first group of transceivers not to respond to a subsequent broadcast; and subsequent thereto, transmitting a communication at a second power level greater than the first power level such that a second group of transceivers greater than and including the first group of transceivers receive the broadcast, but such that only a limited number of transceivers of the second group respond to the broadcast, the limited number of transceivers excluding the first group of transceivers. Each of the plurality of transceivers is associated with a respective sensor for acquiring data and transmitting the data to the recipient transceiver.

Abstract: A wireless transceiver includes: (a) a low power radio frequency (LPRF) communications component capable of powering down to conserve energy and capable of powering up in response to an electronic signal, the LPRF communications component including a transmitter and a first receiver; and (b) a second receiver that is configured to screen a radio frequency broadcast and provide, on the basis of specific data identified therein, the electronic signal to the LPRF communications component in order to power up the LPRF communications component. The second receiver is adapted to draw less current than the LPRF communications component while awaiting receipt of and listening for a radio frequency broadcast.

Abstract: A wireless transceiver includes: (a) a low power radio frequency (LPRF) communications component capable of powering down to conserve energy and capable of powering up in response to an electronic signal, the LPRF communications component including a transmitter and a first receiver; and (b) a second receiver that is configured to screen a radio frequency broadcast and provide, on the basis of specific data identified therein, the electronic signal to the LPRF communications component in order to power up the LPRF communications component. The second receiver is adapted to draw less current than the LPRF communications component while awaiting receipt of and listening for a radio frequency broadcast.

Abstract: A HAZMAT monitoring system detects a plurality of different hazardous materials and includes first and second pluralities of RSIs. Each RSI of the first plurality forms a node in a first wireless sensor network and is associated with a mobile container and with at least one sensor that is configured to acquire data for detecting a first hazardous material. Each RSI further is configured to receive the sensor data and wirelessly transmit, over the first wireless sensor network, data relating to the received sensor data pertaining to the detection of the first hazardous material. Each RSI of the second plurality is similarly associated and configured. Communications within a respective wireless sensor network do not result in communications within the another wireless sensor network. A gateway is configured to independently communicate with each respective wireless sensor network.

Abstract: A wireless transceiver includes: (a) a low power radio frequency (LPRF) communications component capable of powering down to conserve energy and capable of powering up in response to an electronic signal, the LPRF communications component including a transmitter and a first receiver; and (b) a second receiver that is configured to screen a radio frequency broadcast and provide, on the basis of specific data identified therein, the electronic signal to the LPRF communications component in order to power up the LPRF communications component. The second receiver is adapted to draw less current than the LPRF communications component while awaiting receipt of and listening for a radio frequency broadcast.

Abstract: A method of forming ad hoc RSI hierarchical communication networks among pluralities of wireless transceivers includes assigning to each of the transceivers one or more common designations. A network organization routine of the transceivers operates to establish hierarchical networks based on the transceivers' common designations, resulting in a logical network organization that provides efficiencies for acquiring information from particular transceivers that share a common designation. Each transceiver's common designation is used by a digital processor of the transceiver to selectively receive data packets that are intended for receipt by transceivers sharing the particular common designation. Such a “common designation” network reduces power consumption and signal interference thereby increasing battery life.

Abstract: Shipping containers are networked for transferring data between the shipping containers. The shipping containers include sensors for detecting conditions associated with the shipping containers. The conditions sensed by any shipping container whether transported by rail or ship is transmitted from an ad hoc network, via a gateway configured for satellite or cellular communications for example, to a container-tracking application server or equivalent computer system. The computer system is remotely located to the shipping container for central compilation, analysis, and/or display of data regarding the shipping containers.

Abstract: In a wireless network that includes a plurality of nodes, a method of maintaining, by a first node, information regarding communications links between nodes in the wireless network includes: for each communications link that is established with another node, recording an identification of the other node; and for each message received by the first node from the other node through the communications link with the other node, recording a network pathway by which the message has been sent in the wireless network, the network pathway identifying the nodes and the communications links therebetween by which the message has been sent. Another method includes recording, by a server, for each message that is received by the server from the wireless network, a network pathway by which the message has been sent, the network pathway identifying the nodes and the communications links therebetween by which the message has been sent.

Abstract: A wireless transceiver includes: (a) a low power radio frequency (LPRF) communications component capable of powering down to conserve energy and capable of powering up in response to an electronic signal, the LPRF communications component including a transmitter and a first receiver; and (b) a second receiver that is configured to screen a radio frequency broadcast and provide, on the basis of specific data identified therein, the electronic signal to the LPRF communications component in order to power up the LPRF communications component. The second receiver is adapted to draw less current than the LPRF communications component while awaiting receipt of and listening for a radio frequency broadcast.

Abstract: A method of securing a container includes inserting, into a seal device at a container, an electronic bolt; reading, by the seal device, a serial number stored in the electronic bolt; communicating, from the seal device, to a user application, insertion of the bolt; scanning, by the user via a handheld device, a barcode on the seal device representative of an identification of the seal device; communicating, from the handheld device to the user application, the identification of the seal device; inputting, by a user at the container via the handheld device, information associated with the container; communicating, from the handheld device to the user application, the information associated with the container; associating, in a database by the user application, the information associated with the container with the bolt serial number and the identification of the seal device; communicating, by the user application, a confirmation to the seal device.

Abstract: A RF data communication device operates in at least two states. In a first state, the device transmits a response to an RF transmission if specific data therein represents an inquiry as to the presence of one or more RF data communication devices and if specific data therein corresponds to a class maintained by the device. The device does not transmit a response if specific data in the RF transmission is not representative of an inquiry as to the presence of one or more RF data communication devices, or if specific data therein does not correspond to at least one maintained class. In a second state, the device does not transmit a response when specific data is included therein that is representative of an inquiry as to the presence of one or more RF data communication devices and specific data therein corresponds to at least one maintained class.