An object detection device includes an external sensor, an inertia sensor, and a control device. The external sensor is fixed to a ship. The external sensor detects an object. The inertia sensor detects information related to an inertial force applied to the ship. The control device acquires a state of relative displacement of a detection object on the basis of a signal output from the external sensor. The control device acquires a state of an attitude change of the ship on the basis of a signal output from the inertia sensor. The control device determines whether a detection object is present outside the ship according to a correlation between the state of the attitude change of the ship and the state of the relative displacement of the detection object.

Systems and methods for confirming the presence of a person or asset for a given purpose, and recording this information in a distributed ledger. The distributed ledger records and confirms presence indicia in connection with a transaction said facilitates remote and/or automated signatures. The systems and methods detect the presence of one or more humans and/or computing devices at a specific location at the time of a transaction, and contemporaneously recording information concerning the transaction in a distributed ledger. Presence can be determined using network presence sensing (NPS), other types of sensors, or the combination of NPS with other sensors.

Systems and methods for confirming the presence of a person or asset for a given purpose, and recording this information in a distributed ledger. The distributed ledger records and confirms presence indicia in connection with a transaction said facilitates remote and/or automated signatures. The systems and methods detect the presence of one or more humans and/or computing devices at a specific location at the time of a transaction, and contemporaneously recording information concerning the transaction in a distributed ledger. Presence can be determined using network presence sensing (NPS), other types of sensors, or the combination of NPS with other sensors.

A method for timing aperture synthesis arrays comprising the steps of: (a) coupling a plurality of independent crystal oscillators, each of the plurality of independent crystal oscillators having a unique output frequency; (b) digitally synchronizing the plurality of independent crystal oscillators in phase; (c) combining the unique output frequencies; and (d) obtaining a stable digital reference signal for timing at least one remote radio device of the aperture synthesis array.

A registration system for classifying an object, comprising a sensor unit, an evaluation unit, a memory unit and a data-processing unit. The evaluation unit determines a structure data set or a temporal sequence of structure data sets of the object to be registered from a temporal progression of the radiation captured by the sensor assembly. The memory unit stores association rules, each associated with a set of situation parameters. The data-processing unit accesses the structure data set or a temporal sequence of structure data sets, the current situation parameter set, and the association rule associated with the current parameter set and to associate an object with an object class on the basis of the structure data set associated with the object or a temporal sequence of structure data sets by using an association rule associated with the current situation parameter set and received from the memory unit.

A registration system for classifying an object, comprising a sensor unit, an evaluation unit, a memory unit and a data-processing unit. The evaluation unit determines a structure data set or a temporal sequence of structure data sets of the object to be registered from a temporal progression of the radiation captured by the sensor assembly. The memory unit stores association rules, each associated with a set of situation parameters. The data-processing unit accesses the structure data set or a temporal sequence of structure data sets, the current situation parameter set, and the association rule associated with the current parameter set and to associate an object with an object class on the basis of the structure data set associated with the object or a temporal sequence of structure data sets by using an association rule associated with the current situation parameter set and received from the memory unit.

The focus of the teachings is on using Compact ferrite antenna to detect the motion of metal objects using a very low frequency (VLF) square wave, propagated between a pair of compact ferrite-particle dielectric-core RWA antennas in free space. The two salient features in the signal are observed; both of which are characteristic of Brillouin-precursor propagation: (1) a temporal Bessel-like waveform; and (2) an algebraic, rather than exponential, attenuation with distance over three meters. The key element teaching shows pair of source and detector antenna enables the detection of metals (weapon gun, knife) on a person or package between the ferrite- particle dielectric-core antennas- source (S) and detector (D) pairs or arrays of S-D tractor. The detection consisted of a change in the amplitude of the Bessel-like waveform of the received signal for security system to detect weapons.

The focus of the teachings is on using Compact ferrite antenna to detect the motion of metal objects using a very low frequency (VLF) square wave, propagated between a pair of compact ferrite-particle dielectric-core RWA antennas in free space. The two salient features in the signal are observed; both of which are characteristic of Brillouin-precursor propagation: (1) a temporal Bessel-like waveform; and (2) an algebraic, rather than exponential, attenuation with distance over three meters. The key element teaching shows pair of source and detector antenna enables the detection of metals (weapon gun, knife) on a person or package between the ferrite- particle dielectric-core antennas- source (S) and detector (D) pairs or arrays of S-D tractor. The detection consisted of a change in the amplitude of the Bessel-like waveform of the received signal for security system to detect weapons.

A method and system for estimating parameters of pipes. The method may comprise disposing an electromagnetic (EM) logging tool into a pipe string, creating a log from a first set of one or more measurements, and creating a synthetic model of one or more nested pipes based at least in part on a well plan. The method may further comprise adding a modeled pipe to the synthetic model, estimating one or more parameters of the modeled pipe through model calibration to form a calibrated model, and performing an inversion with the calibrated model to estimate one or more pipe parameters of the pipe string. The system may comprise an electromagnetic logging tool that may comprise a transmitter, wherein the transmitter is a first coil and is operable to transmit an electromagnetic field, and a receiver, wherein the receiver is a second coil and is operable to measure the electromagnetic field.

A method and system for estimating parameters of pipes. The method may comprise disposing an electromagnetic (EM) logging tool into a pipe string, creating a log from a first set of one or more measurements, and creating a synthetic model of one or more nested pipes based at least in part on a well plan. The method may further comprise adding a modeled pipe to the synthetic model, estimating one or more parameters of the modeled pipe through model calibration to form a calibrated model, and performing an inversion with the calibrated model to estimate one or more pipe parameters of the pipe string. The system may comprise an electromagnetic logging tool that may comprise a transmitter, wherein the transmitter is a first coil and is operable to transmit an electromagnetic field, and a receiver, wherein the receiver is a second coil and is operable to measure the electromagnetic field.