METHOD AND DESCRIPTORS FOR COMPARING OBJECT-INDUCED INFORMATION FLOWS IN A PLURALITY OF INTERACTION NETWORKS

    公开(公告)号:US20180349779A1

    公开(公告)日:2018-12-06

    申请号:US15778448

    申请日:2016-11-25

    摘要: A method of tracking information flows through multiple network systems includes selecting a primary network system from a population of primary and secondary network systems, wherein each of the primary and secondary network systems include network nodes, selecting first selected characteristic features that identify network nodes of the primary network system that provide interaction between the selected primary network system and secondary network systems, identifying at least one secondary network system that is capable of interacting with the network nodes of the primary network system, subdividing the primary network into subnetwork systems based on identifying primary network nodes that provide interaction between the primary network system and secondary network nodes, identifying the subnetwork systems that are capable of interacting with one or more network nodes of the secondary network systems, identifying a subnetwork node count of the primary network nodes in each subnetwork, identifying objects that are capable of interacting with the primary network nodes, and determining a coincidence frequency or a coincidence measurement between features of objects interacting with the primary network nodes and the features of the primary network nodes that indicate information exchanges between the primary and secondary network nodes.

    Leapfrog communications in a TSCH network

    公开(公告)号:US10038608B2

    公开(公告)日:2018-07-31

    申请号:US14336005

    申请日:2014-07-21

    IPC分类号: H04J1/16 H04L12/26 H04L12/24

    摘要: In one embodiment, a network node monitors communications between a sender node and an intermediary receiver node during a set of time slots of a channel hopping schedule. The sender node, intermediary receiver node, and a final destination node for the communications may all be located along a primary communication path in the network. The network node stores a copy of one of the communications sent from the sender node to the intermediary receiver node during a particular time slot in the set of time slots. The network node forwards the copy of the communication to a listener node configured to monitor communications between the intermediary receiver node and another node located along the primary communication path. The intermediary receiver node is also configured to monitor communications between the network node and the listener node.

    Automated standalone bootstrapping of hardware inventory

    公开(公告)号:US09917736B2

    公开(公告)日:2018-03-13

    申请号:US14496869

    申请日:2014-09-25

    摘要: Embodiments of the present invention provide systems, methods, and computer storage media for automated standalone bootstrapping of hardware inventory that includes a provisioning workflow of discovering, validating, and configuring hardware inventory. In an exemplary embodiment, an in-rack computing device, such as a chassis manager or selected blade, initializes an intra-rack communication network with a hardware inventory of the rack. The in-rack computing device initiates intra-rack communication with the hardware inventory in the rack, using the intra-rack communication network, to discover at least a set of computing units in a hardware inventory. Intra-rack communications that include traffic received from the set of computing units. The in-rack computing device validates operational configurations of the hardware inventory based on comparing expected operational configuration parameters with actual operational configuration parameters, at least a portion of the operational configuration parameters retrieved from the information carried within the traffic received from the set of computing units.

    CONTACT GRAPH GENERATION FOR MOBILE AND GROUND STATION NODES

    公开(公告)号:US20170331710A1

    公开(公告)日:2017-11-16

    申请号:US15154127

    申请日:2016-05-13

    申请人: Raytheon Company

    发明人: Mac Allen Cody

    摘要: A method for generating contact graphs for delay/disruption tolerant networking for a constellation of network nodes (e.g., satellites in low earth orbit, terrestrial sensors, and ground stations). A contact graph indicates the availability and data rates for communications links between spacecraft and ground stations. The links may be intermittent due to orbital dynamics and the earth's rotation, and may be line-of-sight or relayed. The method predicts the future locations of satellite nodes in the Earth Centered inertial reference frame, and converts the locations of terrestrial nodes by converting their coordinates from the Earth Centered Earth Fixed reference frame. The method also determines whether line-of-sight links are possible, and estimates the closing velocity between network nodes to estimate signal Doppler shift. Contact graph routing determines the links used to most effectively move data over the network. Output data files may be directly used by Interplanetary Overlay Network administration software.

    METHOD AND APPARATUS FOR DETERMINING A PHYSICAL POSITION OF A DEVICE

    公开(公告)号:US20170085432A1

    公开(公告)日:2017-03-23

    申请号:US15269115

    申请日:2016-09-19

    申请人: EMC Corporation

    IPC分类号: H04L12/24 H04L12/931

    摘要: Embodiments of the present disclosure provide a method and apparatus for determining a physical position of a device. The method comprises: transmitting a control command to the device, the command instructing the device to change power loading of the device in a predetermined pattern; receiving, from a power distribution unit providing power supply for the device, a network address of the power distribution unit, the network address being transmitted by the power distribution unit in response to detecting the change of the power loading in the predetermined pattern; and determining the physical position of the device based at least on the network address of the power distribution unit. With the technical solution according to the embodiments of the present disclosure, the position of the device can be automatically determined without any manual intervention, which helps to control the operation cost and improve the maintenance efficiency.