Abstract: Disclosed herein are system, method, and computer program product embodiments for providing machine-to-machine (M2M) trust using a distributed ledger. This trust may apply to the Internet of Things (IoT) and/or smart cities contexts. To provide M2M trust, a first computing node may generate a trust score for a second computing node. The trust score may comprise four subcomponents: an identification score, an experience score, a recommendation score, and a context score. These subcomponents may be assigned different weights based on different applications. The multifaceted approach to identifying trust for a particular node provides a flexible framework to provide trust between computing nodes in a network. Additionally, the trusts scores may be published to an immutable distributed ledger and used by other computing nodes to determine updated trust scores as additional interactions between computing nodes occur.

Abstract: A communications system includes a primary network communicating in accordance with a first communications protocol an out-of-band (OOB) network communicating in accordance with a second communications protocol. The primary network includes first and second primary network nodes, which are connected via a twisted-pair cable. The first primary network node is configured to transmit first communications protocol signals on the twisted-pair cable to the second primary network node. The OOB network includes first and second OOB network nodes, which are connected to the twisted-pair cable via a first OOB passive interface device connected between the first primary network node and the second primary network node. The second OOB network node is connected to the twisted-pair cable via a second OOB passive interface device connected between the first and second primary network nodes.

Abstract: A high resolution, high reliability, magnetically coupled, linear position sensor (50) provides a means of determining the position of an object (51) using a methodology that does not require a direct mechanical or physical connection between the sensor (50) and the object (53) whose position is to be determined. The sensor (50) can operate in a high temperature, high pressure fluid with exposure to moderate levels of radioactivity. The sensor (50) utilizes dual rod elements with a magnetically coupled bridging contact slider (51) supported by a ceramic guide all of which are contained within a non magnetic pressure housing. The topology of the sensor (50) supports at least two types of measurement techniques, Time Domain Reflectometry (TDR) as well as linear resistive to determine target (51) position.

Abstract: This invention relates to the field of very high current integrated power systems and defines a system where an alternating current inductive generator (13), controlled by a generator voltage regulator (14), is coupled to alternating current inductive load (11), controlled by an alternating current inductive load controller (12), all controlled by a supervisory control and data acquisition system (17) with externally adjustable power rate constraints (21) that define a new anticipatory mode integrated power system (10).

Abstract: In the parallel resonant DC link inverter described in the specification, a DC voltage is applied to a plurality of semiconductor switches to provide an AC driving voltage for an AC motor by way of an LC tank circuit containing a nonlinear capacitance device having an antiferroelectric material as its dielectric. As a result of the increase in capacitance with increased voltage, the voltage peak of the link voltages produced by the circuit is reduced without a corresponding reduction in the volt-second product applied to the motor load.

Abstract: A high voltage, single-stage variable speed motor power supply utilizes direct AC-to-AC converters that do not have any intermediate DC link, along with a multi-level, multi-phase, multi-circuit variable speed motor drive and a motor in which a stator is wound with a number of multi-phase circuits. Each multi-phase circuit includes semiconductor switches arranged in drive switch pairs which are operated to produce an effective DC supply with the switches being controlled so that the most positive line-to-line source voltage is utilized for the inversion process.

Abstract: In the embodiments disclosed in the specification, a thermoelectric generator is provided in a layer between a heat transfer plate and a plurality of power electronic switches and the voltage generated by the thermoelectric generator is used to control switching of the switches. When the voltage generated by the thermoelectric generator is insufficient to control the switches, power source is taken from the power to be controlled by the switches and stepped down for use in controlling the switches.