Abstract: An amount of charge calculation device, includes: a voltage obtaining portion obtaining a voltage of a secondary battery; a current obtaining portion obtaining a current of the secondary battery; a first calculation portion calculating a first amount of charge of the secondary battery by integrating the obtained current; a second calculation portion calculating a second amount of charge of the secondary battery, on the basis of the obtained voltage and current, and an equivalent circuit model of the secondary battery; and a determination portion determining whether or not a predetermined condition is satisfied, in which in a case where the determination portion determines that the predetermined condition is not satisfied, the first amount of charge is set to the amount of charge of the secondary battery, and in a case where the determination portion determines that the predetermined condition is satisfied, the second amount of charge is set to the amount of charge of the secondary battery.

Abstract: A battery's residual energy measurement circuit includes integrated amount measurement circuitry that measures quantity of an integrated amount of current flowing in a battery, time number measurement circuitry that measures number of times by which a sensing operation that changes the current flowing, time measurement circuitry that measures time, and residual energy calculation circuitry that calculates residual energy of the battery using the integrated amount measured within a measurement period by the integrated amount measurement circuitry, the number of times measured within the measurement period by the time number measurement circuitry and the measurement period measured by the time measurement circuitry.

Abstract: Systems and methods for battery testing are described. Some of the methods for battery testing include applying a first load impedance to a battery, applying a second load impedance to a reference voltage source, measuring a voltage between a positive terminal of the battery and a positive terminal of the reference voltage source, wherein a negative terminal of the battery is connected via a conductor to a negative terminal of the reference voltage source, and determining a condition of the battery based on the measured voltage.

Abstract: This remaining stored power amount estimation device 3 includes: sensors 5, 6 for observing the state of the storage battery 2; and a remaining amount estimation unit 15 which, on the basis of a state vector xk representing the state of the storage battery 2 by a plurality of elements included in an equivalent circuit model 20 modeling the storage battery 2, and an observation vector yk representing an observed value based on the observation result, updates the state of the storage battery 2, using a Kalman filter, and estimates the SOC of the storage battery 2. The remaining amount estimation unit 15 changes the internal impedance of the storage battery 2 modeled by the equivalent circuit model 20, in accordance with values influencing the internal impedance.

Abstract: The present disclosure is intended to design a secondary battery with improved boosting charge performance by estimating reaction in the thickness-wise direction of the electrode, and provides a method or estimating reaction of a secondary battery including (a) preparing a battery cell having a structure of first electrode/separator/reference electrode/separator/second electrode, wherein the second electrode has a structure of upper layer/porous film/lower layer, (b) setting a charging condition to estimate reaction of the battery cell, (c) measuring voltage and current of each of the upper layer, the lower layer and the battery cell while the set charging condition is reached, (d) after the charging condition, measuring an open-circuit voltage of the upper layer, the lower layer and the battery cell, and (e) comparatively analyzing a capacity obtained using the measured current with the measured open-circuit voltage, and a battery cell used for the same.

Abstract: An electrical energy storage system includes at least one battery having a battery management system. In an embodiment, the electrical energy storage system includes a monitoring system which can identify critical states of the battery independently of the state of the battery management system.

Abstract: The secondary battery degradation determination device includes: a plurality of voltage sensors connected to respective batteries; a measurement current application device configured to apply a measurement current including an AC component to each battery group; and a controller. A sensor wireless communicator configured to wirelessly transmit a measurement value of a voltage of the AC component is provided to each voltage sensor. One current sensor is provided for a parallel-connection assembly of the battery groups. The controller is configured to receive the measurement value transmitted by the sensor wireless communicator, calculate an internal resistance of each battery by using the measurement value and a detection value of the current sensor, and determine degradation of the battery on the basis of the internal resistance.

Abstract: A power supply circuit includes an internal power source that receives power supply from an external power source, an abnormality detection circuit that receives power supply from the internal power source to detect abnormalities of the external power source, a protection target circuit that receives the power supply from the external power source, and a protection function unit that restricts electric power supplied to the protection target circuit to a predetermined range, when the abnormality detection circuit detects the abnormalities.

Abstract: A sensor is provided having a magnetic field sensing element to generate a magnetic field signal, a switching circuit coupled to receive the magnetic field signal and generate a switching signal that changes a polarity of the magnetic field signal at a predetermined frequency, and a comparison device configured to receive the switching signal and generate an output signal that changes a level in response to the switching signal crossing a predetermined threshold. The switching circuit is disposed between the magnetic field sensing element and the comparison device and can provide the comparison device an input signal (i.e., the switching signal) that changes polarity at the predetermined frequency. The comparison device can sense characteristics, such as but not limited to crossing operate and release threshold levels, of both north and south polarity magnetic field signals using the switching signal.

Abstract: A field device includes a housing that contains field device circuitry, a display coupled to the field device circuitry and viewable through the housing, and a movable control positioned around the housing, the movable control including a magnet. The field device further includes a sensing element disposed within the housing and configured to detect movement of the magnet. In addition, the field device includes a processor coupled to the display and the sensing element. The processor is configured to identify a position of the movable control, based on the detected movement of the magnet, and control a user interface on the display, based on the identified position of the movable control.

Abstract: A stacked structure is positioned on a nonmagnetic metal layer. The stacked structure includes a ferromagnetic layer and an intermediate layer interposed between the nonmagnetic metal layer and the ferromagnetic layer. The intermediate layer includes a NiAlX alloy layer represented by Formula (1): Ni?1Al?2X?3 . . . (1), [X indicates one or more elements selected from the group consisting of Si, Sc, Ti, Cr, Mn, Fe, Co, Cu, Zr, Nb, and Ta, and satisfies an expression of 0<?<0.5 in a case of ?=?3/(?1+?2+?3)].

Abstract: A system for hyperpolarizing a substance is provided. The system includes a cryostat, a polarizer, and a shuttle. The cryostat is operative to generate radicals within the substance by exposing the substance to electromagnetic radiation. The polarizer is operative to hyperpolarize the substance via the radicals, and to quench the radicals within the substance by adjusting a temperature of the substance after the substance has been hyperpolarized. The shuttle is operative to transport the substance while maintaining hyperpolarization of the substance.

Abstract: An apparatus includes a takeup spool disposed at a far end of a magnetic resonance imaging bore. The takeup spool is adapted to release optical fiber, and to retract the optical fiber. The apparatus also comprises a dongle configured to connect to a terminal end of the optical fiber.

Abstract: According to one embodiment, an MRI apparatus includes a power transmitting unit a signal receiving unit and an image reconstruction unit. The power transmitting unit wirelessly transmits electric power to an RF coil device by magnetically coupled resonant type wireless power transfer. The signal receiving unit wirelessly receives a digitized nuclear magnetic resonance signal wirelessly transmitted from the RF coil device. The image reconstruction unit obtains a nuclear magnetic resonance signal received by the signal receiving unit, and reconstructs image data of an object on the basis of the nuclear magnetic resonance signal.

Abstract: A method of acquiring magnetic resonance imaging (MRI) data from an MRI scan of an object includes generating a number of excitation sequences by, in order: generating an excitation pulse, generating an imaging magnetic field gradient, and generating a spoiler magnetic field gradient. MRI data is acquired during the generation of the spoiler magnetic field gradients. The spoiler magnetic field gradients are selected such that, during each excitation sequence, substantially the same k-space trajectory is traversed during the generation of the spoiler magnetic field gradient.

Abstract: A magnetic resonance imaging apparatus according to an embodiment includes sequence controlling circuitry. The sequence controlling circuitry applies a pre-pulse that inverts longitudinal magnetization from a positive value to a negative value and is configured, when a predetermined time period has elapsed, to acquire k-space data by performing three-dimensional acquisitions in which a radial acquisition is performed on a kx-ky plane and a Cartesian acquisition is performed in a kz direction.

Abstract: In a magnetic resonance slice multiplexing method and apparatus, measurements are repeated with additional phase amounts being applied, wherein in each repetition, the additionally applied phase amounts are changed such that at least a central k-space region is fully sampled in the course of the repeated acquisitions. A calibration dataset, which is used in reconstructing image data for the simultaneously excited slices from the acquired measurement data, is determined from the measurement data that have been fully acquired in the central k-space region. The calibration dataset is updated in further measurements.

Abstract: For determining a configuration for a MR scanner using MRF, MRF is optimized using a model of acquisition and reconstruction together. The effects of under sampling and reconstruction are included in the model being optimized with the sequence. A spatial distribution of response is used in the MRF optimization. An added transformation may be included to convert the fingerprint into a domain for noise removal and/or more direct parameter estimation without the dictionary. Artificial intelligence may be used to alter and/or select the type of optimization or optimization settings and/or to optimize.

Abstract: The invention provides systems and methods for providing a diagnostic examination to a patient, including, but not limited to a determination of the permeability of a patients' body cavity.

Abstract: The MRI apparatus includes a processor configured to apply a gradient echo pulse sequence that makes a sum of gradients applied during one repetition time (TR) in a slice selection direction, a phase encoding direction, and a frequency encoding direction equal zero and maintains spins in an object in a steady state; alternately apply, while the gradient echo pulse sequence is continuously applied, a first radio frequency (RF) pulse having a first flip angle and a second RF pulse having a second flip angle that is different from the first flip angle at each TR interval; and generate an MR image based on an echo signal acquired when the spins are in the steady state

Abstract: In a correction method and apparatus for a magnetic resonance diffusion weighted imaging image, a diffusion weighted imaging image is corrected based on a launch site correction factor and/or a receiving field correction factor. The launch site correction factor is used for correcting inhomogeneity of a launch site, and the receiving field correction factor is used for correcting inhomogeneity of a receiving field. The imaging sequence of the diffusion weighted imaging image is thereby improved and the corresponding image reconstruction of the diffusion weighted imaging image, and the homogeneity of the diffusion weighted imaging image also can be improved, without measuring the intensity of the launch site, which significantly reduces the correction workload and is easy to automate.

Abstract: The invention provides for a method of operating a magnetic resonance imaging system (100, 200) for imaging a subject (118). The method comprises acquiring (300) tagged magnetic resonance data (144) by controlling the magnetic resonance imaging system with tagging pulse sequence commands (140). The tagging pulse sequence commands comprise a tagging inversion pulse portion (404) for spin labeling a tagging location (122, 122?) within the subject. The tagging pulse sequence commands comprise a phase-contrast readout portion (406). The phase-contrast readout portion comprises phase-contrast encoding in at least one direction. The method further comprises acquiring (302) control magnetic resonance data by controlling the magnetic resonance imaging system with the control pulse sequence commands, wherein the control pulse sequence commands comprise a control inversion pulse portion (500), wherein the control pulse sequence commands comprises the phase-contrast readout portion.

Abstract: A calibration apparatus for calibrating at least one of a signal generator and a signal analyzer is described, wherein the calibration apparatus comprises an input terminal for establishing a connection with the signal generator, an output terminal for establishing a connection with the signal analyzer, a reference signal source for providing a reference signal, and a combiner circuit for combining signals received. The combiner circuit has a first input connected to the reference signal source and a second input assigned to the input terminal, the combiner circuit having an output assigned to the output terminal. Further, a calibration system and a method for calibrating at least one of a signal generator and a signal analyzer are described.

Abstract: A diagnostic device for a current sensor disclosed herein may include an AC power calculation unit, a DC power calculation unit, and a determination unit. The AC power calculation unit may be configured to calculate AC power outputted from the inverter based on a measurement value measured by the current sensor. The DC power calculation unit may be configured to calculate DC power outputted from a DC power source that supplies power to the inverter. The determination unit may be configured to output a signal for notifying occurrence of an abnormality of the current sensor in a case where a difference between the calculated AC power and the calculated DC power is larger than a predetermined threshold.

Abstract: A utility meter includes a meter housing in which are supported at least one current coil, a temperature sensor, and a processing circuit. The current coil can be coupled to receive heat energy from within or on the meter socket. The temperature sensor generates a sensor signal based on a temperature within the meter housing. The processing circuit is operably coupled to the temperature sensor and the at least one current coil. The processing circuit obtains the sensor signal and generates temperature information therefrom, and also generates measurements of current through the current coil. The processing circuit generates an adjustment based at least on the square of the measured current, and determines whether an abnormal condition exists based on the temperature information, the adjustment, and a threshold. The processing circuit can generate an output signal to a display or communication circuit responsive to determining that the abnormal condition exists.

Abstract: New measurement inputs for Kalman Filter or similar estimation approaches (at each sample) may include: DSRC messages from roadside transmitters (RSTs), such as: how long it takes for a DSRC signal from one or more fixed RSTs to reach the vehicle and comparison of that information with vehicle position estimates from a signal propagation model, which is based on how long it takes a DSRC signal to reach the vehicle GPS location from a fixed known RST location. From such measurements, it can be determined how much longer (or shorter) it takes to receive the RST message compared to the previous sample, which, in turn, gives an idea how far the vehicle has moved over a sample relative to a fixed RST location.

Abstract: A device, method and software program for sensor self-calibrating are disclosed, including sensing, by sensors, objects in at least one field of view and generating sense data from the sensing; detecting, from the sense data, at least one marker disposed in a fixed position within the at least one field of view; for each marker detected, extracting position information of the marker and associating the marker with the extracted position information therefor; and calibrating the sensors based upon the extracted position information for each marker detected.

Abstract: The invention relates to systems and methods for obtaining phase information and/or localization of tag devices. In particular, the invention relates to a system for the localization of at least one tag device, the system including: the at least one tag device configured to transmit a tag signal which is a frequency-hopping signal; at least one known position device configured to transmit a reference signal; and a localization device configured to localize the at least one tag device based on the phase difference of arrival, PDoA, of the tag signal and the reference signal.

Abstract: The disclosure includes embodiments for minimizing radar interference. In some embodiments, a method includes observing, for a time frame, an order in which Basic Safety Messages (“BSMs”) are received by a DSRC radio of the ego vehicle and broadcasted by the DSRC radio of the ego vehicle. In some embodiments, the method includes building a data structure that includes digital data that describes the order in which the BSMs were received and transmitted by the DSRC radio during the time frame. In some embodiments, the method includes assigning, by the onboard computer of the ego vehicle, radar parameters to the one or more other DSRC-enabled vehicles and the ego vehicle based on the order described by the digital data included in the data structure.

Abstract: A frequency hopping continuous wave (FHCW) radar system which utilizes a one-coincidence sequence to create a form of FH multiplexing to allow discerning returning signals from interference. An EHC code generator sends codes to an FH waveform generator coupled to a transmitter. A receiver outputs a received signal to a correlator which correlates received signal with a delayed transmitted signal, and sends results for digital signal processing to determine target range and velocity. Use of the one-coincidence sequence provides for the interference level to be well managed and below the radar return signal; assuring that the returning radar signals can be discerned from interference.

Abstract: The present disclosure relates to enabling a radar system relates to identify airborne and spaceborne objects in a nuclear-scintillated environment. In some embodiments, the radar system transmits a plurality of narrowband signals corresponding to a plurality of consecutive segments of a linear frequency modulated (LFM) waveform. The radar system receives a plurality of echo signals corresponding to the plurality of narrowband signals being reflected from an airborne or spaceborne object. Upon processing the plurality of echo signals to generate a plurality of waveform segments, the radar system combines the plurality of waveform segments to produce a composite waveform. Then, the radar system applies a matched filter to the composite waveform using the LFM waveform to identify the airborne or spaceborne object.

Abstract: Some systems for self-adjusting a monitoring pattern range of a microwave sensing device can include a microcontroller coupled to the microwave sensing device, an antenna of the microwave sensing device, signal processing circuitry of the microwave sensing device coupled to the antenna, and a digital potentiometer of the microwave sensing device coupled to the signal processing circuitry.

Abstract: An on-chip power sensor and a millimeter-wave communication device (e.g. transmitter or transceiver) on a chip including the on-chip power sensor are described. The millimeter-wave communication device can also include a coupler disposed on a transmit path, the coupler being configured to receive a transmit signal and to provide the transmit signal to an antenna connection (e.g. pad). The on-chip power sensor can be configured to receive a coupled portion of the transmit signal from the coupler, and measure a transmit power of the transmit signal based on the coupled portion of the transmit signal.

Abstract: A method for monitoring the performance range of a radar system placed behind a portion of a vehicle including, in an operational mode, the steps of: transmitting a first signal in a high range resolution mode from the radar system through the portion of the vehicle; receiving a first return signal comprising a part of the first signal that is reflected by the portion of the vehicle at the radar system; measuring the first return signal; comparing the first return signal with a calibration return signal representative of a part of the first signal that is reflected by the portion of the vehicle in a calibration mode; determining the relative loss of transmission of the portion of the vehicle from the comparing step.

Abstract: A first multitude of frequency elements between a first lower frequency and a first upper frequency; and a second multitude of frequency elements between a second lower frequency and a second upper frequency are transmitted. The second lower frequency and the second upper are shifted from the first upper frequency by the first delta, respectively, by a delta frequency. A return signal is split into: a first return signal comprising a first in-phase component and a first quadrature phase component; and a second return signal comprising a second in-phase component and a second quadrature phase component. A combined return signal is generated by combining the first return signal and the second return signal phase shifted by the first delta frequency. A probability of a potential target is determined when the combined return signal exceeds a threshold.

Abstract: The disclosure provides a circuit. The circuit includes an amplifier and a digital to analog converter (DAC). The amplifier receives a reference voltage at an input node of the amplifier. The DAC is coupled to the amplifier through a refresh switch. The DAC includes one or more current elements. Each current element of the one or more current elements receives a clock. The DAC includes one or more switches corresponding to the one or more current elements. A feedback switch is coupled between the one or more switches and a feedback node of the amplifier. The DAC provides a feedback voltage at the feedback node of the amplifier.

Abstract: A method of correcting a measurement value of a laser scanner includes: in a laser scanner including a light emitting unit, a light receiving unit, a distance measuring unit, an optical axis deflecting unit having at least a pair of prisms deflecting a distance measuring light and a reflected distance measuring light, and an emitting direction detecting unit detecting a deflection angle and an emitting direction of the distance measuring light from the optical axis deflecting unit, (a) measuring a distance to a measurement point, (b) detecting rotation angles of the prisms, and (c) obtaining, based on rotation angles of the prisms, a true distance measurement value corrected for a length of an optical path length difference in light emission and/or light reception caused according to the rotation angles of the prisms by subtracting the optical path length difference from a distance measurement value of the distance measuring unit.

Abstract: A TOF ranging sensor according to Embodiment includes: a light-emitting unit that radiates light beams to subspaces; a light-receiving unit that receives light and forms images of the light on light-receiving elements allocated to the subspaces; and a space control unit that independently controls each element group that includes a light-emitting element and a light-receiving element that are allocated to a common one of the subspaces.

Abstract: A laser rangefinder may include a housing supporting an objective optic, an eyepiece optic, and a view-thru display. The view-thru display may be located along an optical path between the objective optic and the eyepiece optic. The view-thru display may comprise a first transparent sheet and a plurality of electrodes disposed on a first inner surface of the first transparent sheet. The view-thru display may be disposed rearward of the objective optic and the eyepiece optic may be disposed rearward of the view-thru display assembly so that a scene or subject can be viewed through the eyepiece optic and a plurality of display elements selectively displayed by the view-thru display assembly are superimposed on the scene or subject being viewed. Information regarding wind in proximity to the laser rangefinder may be presented on the view-thru display.

Abstract: A hybrid LiDAR-imaging device is configured for aerial surveying and comprises a camera arrangement adapted for generating orthophoto data and a LiDAR device, in which an overall exposure area is provided by the camera arrangement, which has a transverse extension of at least 60 mm and the LiDAR device has a longitudinal extension axially along a ground viewing nominal LiDAR axis and a lateral extension substantially orthogonal to the nominal LiDAR axis, in which the longitudinal extension is larger than the lateral extension.

Abstract: A laser scanner device can be adapted to be mounted to a vehicle, the device comprising a LiDAR module working based on a laser measuring beam and time-of-flight-measurement-principle. The LiDAR module is configured to provide a horizontal field of view of at least 60°, an instantaneous vertical field of view of at least ±2°, a scan resolution of at least one point per 0.8° in horizontal and vertical direction, and a frame rate of at least 10 Hz for scanning at least the entire horizontal and instantaneous vertical field of view with said scan resolution, wherein the LiDAR module comprises a multibeam transmitter configured for generating a plurality of measuring beams.

Abstract: A laser scanner includes multiple measuring beams for optical surveying of an environment. The laser scanner is configured to provide scanning with at least two different multi-beam scan patterns, in which each multi-beam scan pattern is individually activatable by a computing unit of the laser scanner.

Abstract: A calibration system for calibrating a LIDAR sensing system of a vehicle includes a plurality of light reflecting targets disposed at a ground surface at an end of line calibration region of a vehicle assembly facility. The light reflecting targets are arranged at the ground surface in a predetermined pattern. When a vehicle equipped with a LIDAR sensing system is at the calibration region, the light reflecting targets are in the field of sensing of at least one LIDAR sensor of the LIDAR sensing system of the vehicle. Responsive to processing of data sensed by the at least one LIDAR sensor, the calibration system determines the locations of the light reflecting targets and determines misalignment of the LIDAR sensor and calibrates the LIDAR sensing system to accommodate the determined misalignment.

Abstract: An outer case for an ultrasonic probe that houses a module of the ultrasonic probe is provided. The outer case includes a grip case gripped by a user and a head case that engages with the grip case. The grip case has a first engaging portion where one or a plurality of convex portions are disposed. The head case has a second engaging portion where one or a plurality of depressed portions are disposed at positions where the one or plurality of depressed portions engage with the one or plurality of convex portions. The convex portion and the depressed portion are engaged to be locked.

Abstract: An outer case for an ultrasonic probe that houses a module of the ultrasonic probe is provided. The outer case includes a grip case gripped by a user and a head case that engages with the grip case. The grip case is constituted of a pair of parts in an identical shape. A projection portion is disposed at a first edge portion on one side from a center of each of the parts. A groove portion is disposed at a second edge portion on another side from the center of each of the parts, and the groove portion engages with the projecting portion.

Abstract: According to an embodiment, a method for presence detection includes performing a first scanning comprising scanning a first area using a millimeter-wave radar sensor to produce a first set of radar data; identifying a first set of targets based on the first set of radar data; performing a second scanning comprising scanning portions of the first area corresponding to the first set of targets using the millimeter-wave radar sensor, and performing micro-Doppler measurements on the portions of the first area; and determining which targets of the first set of targets meet a first set of criteria based on the micro-Doppler measurements.

Abstract: A method begins by one or more processing modules of one or more computing devices of a radar system determining whether a radar signature varies cyclically with time, and when the radar signature varies cyclically with time the method continues with the one or more processing modules collecting state telemetry information for the radar signature, along with a signal representation for the radar system. The state telemetry information includes rotation angle, yaw angle and rotation rate for the object responsible for the observed radar signature and the signal representation for the radar system includes data sufficient to determine an I/Q signal for the radar system. The method then determines a characterized radar signature for the object responsible for the radar signature and based on the state telemetry and the signal representation, substantially removes the radar signature from radar data.

Abstract: Data from a radar sensor moving through a static environment may be smoothed and used to generate range profiles by approximating peaks. A direction of arrival (DOA) can then be determined based on the range profile in order to generate a reprojection map. The reprojection map is used to provide updates to a stored map in a robot.

Abstract: A radar system processes signals in a flexible, adaptive manner to determine range, Doppler (velocity) and angle of objects in an environment. The radar system processes the received signal to achieve different objectives depending on one or more of a selected range resolution, a selected velocity resolution, and a selected angle of arrival resolution, as defined by memory requirements and processing requirements. The system allows improved resolution of range, Doppler and/or angle depending on the memory requirements and processing requirements. The system also adapts to changing environmental conditions including interfering radio signals.

Abstract: The arrangements of the present disclosure provide a locating apparatus, a locating method, and a shelf. The locating apparatus includes a rotating mechanism, a distance measuring mechanism, and a locating circuit. The rotating mechanism is configured to control the distance measuring mechanism to rotate in a plane where the distance measuring mechanism is positioned, and to measure a rotation angle of the distance measuring mechanism in the plane. The distance measuring mechanism is configured to measure a distance between the distance measuring mechanism and an obstacle. The locating circuit is configured to determine a position of the obstacle in the plane based on the rotation angle of the distance measuring mechanism in the plane and the distance between the distance measuring mechanism and the obstacle.