Abstract: A bi-directional direct current (DC) solid state power controller (SSPC) architecture and control method. The SSPC protects a DC distribution system by isolating both the positive and negative buses independently in case of short circuit or ground fault. The SSPC architecture includes two self-heal interleaved capacitors and includes a fast, soft-charging control technique that provides line-isolated charging of the DC bulk capacitor to avoid inrush current when powering up the DC distribution system. The soft-charging function alternately charges one of the two interleaved capacitors, while the other capacitor discharges to the DC bulk capacitor. Repetitive switching results in a charging and discharging process that increases the voltage of the DC bulk capacitor prior to powering up the DC distribution system, while keeping the DC power source isolated from the load.

Abstract: In some examples, this disclosure describes a method for detecting a fault in an electrical power system comprising a bus connected between a first solid state power converter and a second solid state power converter. The method includes receiving, at a controller of the electrical power system, a first signal indicating a current at a source side of the first solid state power converter, wherein the source side of the first solid state power converter is connected to a power source of the electrical power system. The method also includes receiving, at the controller, a second signal indicating a current at the bus and determining, by the controller, that a fault occurred in the electrical power system based on the first signal and further based on the second signal. The method further includes controlling the first solid state power converter in response to determining that the fault occurred.

Abstract: In some examples, an electrical power system includes a solid state power converter including a first set of switches on a source side of the solid state power converter and a second set of switches on a load side of the solid state power converter. The electrical power system also includes a power source connected to the source side of the solid state power converter and also includes a differential bus connected to the load side of the solid state power converter. The electrical power system further includes a controller configured to receive a first signal indicating a current at the source side and receive a second signal indicating a current at the load side. The controller is further configured to detect, based on a time derivative of the first signal and a time derivative of the second signal, a fault in the electrical power system.

Abstract: An apparatus can comprise a processor and a memory. The memory can store instructions that, when executed by the processor, cause the processor to associate a plurality of consumer containers with a data container. The plurality of consumer containers can host workloads that access a data segment hosted by the data container. The plurality of consumer containers and the data container can be scheduled on different nodes of a horizontally scalable cluster. A node of the horizontally scalable cluster that hosts the data container can be identified. The plurality of consumer containers can be scheduled to execute on the node based on the association between the plurality of consumer containers and the data container.

Abstract: A delta-sigma modulator includes a first amplifier having an input, a feedback control input, and an output. The input is a first input of the delta-sigma modulator. The delta-sigma modulator further includes a first integrator and a first quantizer. The first integrator has an input and an output. The output of the first amplifier is coupled to the input of the first integrator. The first quantizer has an input and an output. The output of the first quantizer is coupled to the feedback control input of the first amplifier.

Abstract: A foot mounted wearable device is disclosed. The device includes a toe-ring which includes a plurality of sensors configured to sense motion data associated with a foot of a user. The toe-ring also includes a microcontroller which includes a motion information processing subsystem configured to process the sensed motion data acquired from the plurality of sensors to determine motion information associated with the user. The device also includes a motion information analysis subsystem configured to receive the motion information associated with the user via an established communication network. The motion information analysis subsystem is also configured to analyse received motion information associated with the user to derive knowledge of at least one function associated with the user, wherein the at least one function includes at least one of gesture recognition, steps tracking of the user or a combination thereof.

Abstract: The present disclosure relates to computer implemented methods and systems for processing of workorder evidence. The workorder has associated objects of interest and metadata describing at least one workorder attribute. Workorder evidence to be processed comprises an image. The image is validated to assess whether the image is associated with the workorder. Validation comprises one or both of comparing image attributes to workorder attributes to detect a match, and comparing the image to previous images to ensure that the image is not a match for a previous image. The system or method detects whether an object of interest is depicted in the image using an object detection algorithm. The workorder evidence is classified depending on whether the image is detected as valid and the object or interest is detected in the image.

Abstract: A precharge circuit comprises a gain amplifier, a comparator, a reservoir capacitor, a switch, a current source, and a switching network. The gain amplifier has a gain G1 and receives an input voltage Vrefp. The gain amplifier outputs an amplified voltage G1Vrefp to the comparator, which compares G1Vrefp to a voltage across the reservoir capacitor. The comparator outputs a control signal for the switch based on the comparison. The switch couples the current source to the reservoir capacitor. The current from the current source charges the reservoir capacitor. The switching network couples the reservoir capacitor to an output of the precharge circuit during a first operating mode and provides the input voltage Vrefp to the output during a second operating mode.

Abstract: Examples described herein provide for associating a network device to a network management system (NMS). Examples herein include determining, by a network orchestrator, a set of embeddings indicative of characteristics of the network device and each of a plurality of instances of the NMS. Examples herein include determining, by the network orchestrator for each of the plurality of instances, a probability score based on the set of embeddings, wherein the probability score is indicative of a likelihood of the network device to be associated with the instance. Examples herein further include, based on the probability score for each of the plurality of instances, selecting, by the network orchestrator, a first instance of the plurality of instances to associate with the network device. Examples herein include associating, by the network orchestrator, the network device to the first instance.

Abstract: A precharge circuit comprises a gain amplifier, a comparator, a reservoir capacitor, a switch, a current source, and a switching network. The gain amplifier has a gain G1 and receives an input voltage Vrefp. The gain amplifier outputs an amplified voltage G1Vrefp to the comparator, which compares G1Vrefp to a voltage across the reservoir capacitor. The comparator outputs a control signal for the switch based on the comparison. The switch couples the current source to the reservoir capacitor. The current from the current source charges the reservoir capacitor. The switching network couples the reservoir capacitor to an output of the precharge circuit during a first operating mode and provides the input voltage Vrefp to the output during a second operating mode.

Abstract: A device may cause a Media Access Control Security (MACsec) session to be established on a first link of a link aggregation group (LAG) that includes a plurality of links with a different device. The device may cause a data structure to be updated to identify the first link as a MACsec enabled LAG link and may send traffic via the first link. The device may cause a MACsec session to be established on at least one additional link of the LAG and may cause the data structure to be updated to identify the at least one additional link as a MACsec enabled LAG link. The device may send, after causing the data structure to be updated to identify the at least one additional link as a MACsec enabled LAG link, additional traffic via the first link and the at least one additional link.

Abstract: A method of capturing an image of a scene. A current location of a plurality of objects in a frame of a video capturing the scene having one or more events of interest, is determined. For at least one of the events of interest, a time and a location for each of the plurality of objects associated with the event of interest is predicted based on the current location of the plurality of objects. A frame subset score is determined for each of a plurality of frame subsets in the frame, each of the plurality of frame subsets including one or more of the plurality of objects based on the predicted time and the predicted location for the event of interest. One of the determined plurality of frame subsets is selected based on the determined frame subset score. An image of the event of interest is captured using a camera, based on a camera orientation setting for the selected frame subset, where the captured image comprises the selected frame subset.

Abstract: A device may cause a Media Access Control Security (MACsec) session to be established on a first link of a link aggregation group (LAG) that includes a plurality of links with a different device. The device may cause a data structure to be updated to identify the first link as a MACsec enabled LAG link and may send traffic via the first link. The device may cause a MACsec session to be established on at least one additional link of the LAG and may cause the data structure to be updated to identify the at least one additional link as a MACsec enabled LAG link. The device may send, after causing the data structure to be updated to identify the at least one additional link as a MACsec enabled LAG link, additional traffic via the first link and the at least one additional link.

Abstract: Systems and methods for decentralized and distributed-ledger based global credit scoring are disclosed. In one embodiment, a method for decentralized and distributed-ledger based global credit scoring may include: (1) receiving, at a bank node in a distributed ledger network comprising a plurality of nodes, the bank node comprising a computer processor, customer data and transaction data for a customer transaction; (2) creating, by the bank node, a block comprising the customer data and the transaction data; and (3) submitting, by the bank node, the block to the distributed ledger network. The nodes validate the block and write the block to the distributed ledger.

Abstract: A system and method of generating a composite frame from a video capturing a plurality of persons. The method comprises determining a plurality of frames corresponding to occurrence of a predetermined event in the video; determining an importance score for each of the plurality of persons in the determined plurality of frames, the importance score determined based on a type of interaction detected between each of the plurality of persons with an activity object; and selecting one or more of the plurality of persons based on the determined importance score to generate a composite frame of the event including the selected one or more persons.

Abstract: A container management system and device that includes a hibernator deployment to determine a semantic defined for applications generated to perform deployments in the container management system, determine whether the applications are active during a corresponding time period included within the semantic, and transfer the applications from an active state to an inactive state in response to the application not being inactive during the corresponding time period included within the semantic defined for the application.

Abstract: A device may cause a Media Access Control Security (MACsec) session to be established on a first link of a link aggregation group (LAG) that includes a plurality of links with a different device. The device may cause a data structure to be updated to identify the first link as a MACsec enabled LAG link and may send traffic via the first link. The device may cause a MACsec session to be established on at least one additional link of the LAG and may cause the data structure to be updated to identify the at least one additional link as a MACsec enabled LAG link. The device may send, after causing the data structure to be updated to identify the at least one additional link as a MACsec enabled LAG link, additional traffic via the first link and the at least one additional link.

Abstract: A method for use in managing a networked computing system includes: receiving a trigger for a migration of a plurality of local migration artifacts from a first deployment state associated with an on-premises network management system to a second deployment state; and migrating the plurality of local migration artifacts from the first deployment state associated with the on-premises network management system to the second deployment state associated with the cloud-based provisioning system. The migration is seamless and includes reconciling at least one local migration artifact of the plurality of local migration artifacts with a plurality of remote migration artifacts maintained by the cloud-based provisioning system.

Abstract: Systems and methods are provided for new network device provisioning without Internet access. One method may include a method of network device provisioning without Internet access, the method including entering a pre-shared key (PSK) in a dynamic host configuration protocol (DHCP) message, obtaining the PSK from a set of DHCP message options by an onboarding network device requesting to join a private network, presenting the PSK, by the onboarding network device, to a network management system (NMS) of the private network, validating the PSK by the NMS, and updating an inventory list of the NMS to include the onboarding network device in the inventory list.

Abstract: A method of capturing an image of a scene. A current location of a plurality of objects in a frame of a video capturing the scene having one or more events of interest, is determined. For at least one of the events of interest, a time and a location for each of the plurality of objects associated with the event of interest is predicted based on the current location of the plurality of objects. A frame subset score is determined for each of a plurality of frame subsets in the frame, each of the plurality of frame subsets including one or more of the plurality of objects based on the predicted time and the predicted location for the event of interest. One of the determined plurality of frame subsets is selected based on the determined frame subset score. An image of the event of interest is captured using a camera, based on a camera orientation setting for the selected frame subset, where the captured image comprises the selected frame subset.