Abstract: An approach is provided for resolving an inconsistency in road closure data stored in a mapping platform. The approach, for example, involves processing map data to generate a roadway graph representing a spatial relationship between a first road segment and a second road segment. The spatial relationship indicates that a first closure state of the first road segment cannot differ from a second closure state of the second road segment. The approach also involves determining that the inconsistency in the road closure data for the first road segment and the second road segment indicates that first closures state and the second closure state do not match. The approach further involves changing the road closure data stored in the mapping platform either to match the first road closure state with the second road closure state, or to match the second road closure state with the first road closure state in response to the inconsistency.

Abstract: The invention discloses an altitude initialization and monitoring system (AIMS) for unmanned aircraft systems (UAS). The altitude initialization and monitoring system is adapted to function as part of an airborne wireless sensing system (AWSS) associated with a UAS, transmitting flight data in support of remote identification (Remote ID) for UAS operating in the National Airspace System (NAS). The invention relates to a system, method, and software code executing the altitude initialization and monitoring functions. The invention may be implemented solely using a primary altitude sensor or may be implemented with one or more secondary (monitor) sensors.

Abstract: Systems, methods and computer-readable media are provided for determining an effective altitude in relation to a moving sports object. In some examples, a method includes determining respective values for an air temperature, an air pressure, and a relative humidity of an environment of interest. Based on the determined respective values of the air temperature, the air pressure, and the relative humidity, an air density for the environment of interest is calculated to derive a first air density value. A second air density value is derived for a reference environment. An absolute value of a difference between the first and second air densities is compared against a preset comparison value and, based on the comparison being equal to or smaller than the preset comparison value, an output including an indicator of the effective altitude is generated.

Abstract: A transducer magnet assembly (1) on a shifting rail (9) having a transducer magnet (4) which is held by a magnet support (3), and a coupling ring (2). The coupling ring (2) surrounds the shifting rail (9) and the magnet support (3) locks the coupling ring (2) so that the coupling ring (2) is held onto the shifting rail (9).

Abstract: Devices, systems, and methods for aspirating smoke detector packaging are described herein. In some examples, one or more embodiments include a package for an aspirating smoke detector device, comprising a plurality of panels, wherein a first panel includes a mounting template having a plurality of mounting indicators, wherein each of the plurality of mounting indicators corresponds to a respective mounting location of the aspirating smoke detector device, and a second panel includes a head protector configured to be removed from the package and inserted into a slot of the aspirating smoke detector device.

Abstract: Systems and methods provide for a sensing system for a vehicle system. The sensor monitors including a control circuit having one or more processors. The control circuit is communicatively coupled to a switch based on a Power over Ethernet (PoE) interface. The control circuit receives power from the PoE network switch. The sensor monitors include an interface circuit bi-directionally communicating with one or more sensors to acquire sensor measurements. The control circuit transmits the sensor measurements to the switch using the PoE interface.

Abstract: A data processing method comprising: receiving, from each of a plurality of sensors each located at a respective location, a signal indicative of a respective value of a parameter measured by that sensor at a respective one of a plurality of successive times; and determining, based on the value of the parameter measured by one or more first sensors of the plurality of sensors at a respective one or more of the plurality of successive times, a value of the parameter at the location of a second sensor of the plurality of sensors at one of the one or more of the plurality of successive times.

Abstract: Actuators for rotating an optical-path-folding-element with two, first and second, degrees of freedom in an extended rotation range around two respective rotation axes, folded cameras including such actuators and dual-cameras including a folded camera as above together with an upright camera.

Abstract: To reduce the construction effort and also to make it smaller, the detector coil (6) is formed in the detector head (7) of a magnetostrictive position sensor (100) in a semiconductor chip (2), in which at the same time also the evaluation circuit (16) is formed and—if biased electrically and by means of direct current—also the then necessary separate bias coil (18).

Abstract: An apparatus is disclosed for capturing image information. The apparatus includes a waveguide having opposed planar input and output faces. A diffractive optical element (DOE) is formed across the waveguide. The DOE is configured to couple a portion of the light passing through the waveguide into the waveguide. The light coupled into the waveguide is directed via total internal reflection to an exit location on the waveguide. The apparatus further includes a light sensor having an input positioned adjacent the exit location of the waveguide to capture light exiting therefrom and generate output signals corresponding thereto. A processor determines the angle and position of the coupled light with respect to the input face of the waveguide based on the output signals.

Abstract: The disclosure relates to a lower display sensor. The lower display sensor includes: a light sensor, including a light irradiation portion that irradiates an induction light used for sensing an object located outside a display, and a light receiving portion that detects a reflected light reflected by the induction light from the object; a first sensor polarizing layer, disposed on an upper portion of the light sensor and having a polarizing axis inclined at a first angle; and a first sensor delay layer, disposed on an upper portion of the sensor polarizing layer and having a slow axis inclined at a first angle with respect to the polarizing axis.

Abstract: An acoustic system and method is disclosed for providing spatial and temporal classification of a range of different types of sound producing targets in a geographical area. The system includes an optical signal transmitter arrangement for repeatedly transmitting, at multiple instants, interrogating optical signals into each of one or more optical fibres distributed across the geographical area and forming at least part of an installed fibre-optic communications network. An optical signal detector arrangement receives, during an observation period following each of the multiple instants, returning optical signals scattered in a distributed manner over distance along the one or more of optical fibres.

Abstract: The present disclosure provides a Brillouin optical time domain reflectometer with an ultra-high spatial resolution based on bipolar differential phase encoding, including a narrow-linewidth laser, a polarization maintaining coupler, a differential encoder, a Mach-Zehnder modulator, an optical pulse amplifier, an optical circulator and a sensing fiber, an optical amplifier, a coherent optoelectronic receiver, a sideband demultiplexer, and a result measurement module. By implementing the present disclosure, a spatial resolution for measuring a Brillouin scattering spectrum can be effectively improved, and measurement precision can be effectively improved by increasing a quantity of times of superposition and averaging. In addition, measurement performance can be effectively improved by directly using a bipolar encoding sequence.

Abstract: This application relates to methods and apparatus for distributed fibre optic sensing and especially to the processing of signals derived from such sensing techniques to characterise events of interest. The application describes a method of distributed fibre optic sensing, comprising; performing distributed fibre optic sensing so as to generate at least one set of measurement signals from each of a plurality of sensing channels of an optical fibre (101) in response to at least one event of interest. For each set of measurement signals, processing the measurement signals from different sensing channels according to an association metric to determine whether any sensing channels are associated with one another and form at least one association matrix indicative of the sensing channels that are associated with one another.

Abstract: Techniques detect a low gas-pressure condition within a region without the use of pressure sensors. In an example, gas usage at a service site is disaggregated to show use by individual appliances. A flowrate of gas at an appliance (e.g., a gas hot water tank) having a generally fixed-rate of gas-consumption is determined. Based at least in part on the flowrate of gas at the appliance, and an historical gas flowrate at that appliance, it is determined if gas pressure at the service site is lower than expected. In an example, failure of the appliance to use its typical fixed-flowrate may indicate low gas pressure at the service site. Information is obtained from a second gas meter at a second service site. Based on the gas pressure at the first and second service sites being lower than expected, a low gas pressure situation may exist in a regional area.

Abstract: A field device case is a metal field device case where a lead-in part for drawing a cable including an outer shield is provided on a tubular circumferential wall. The field device case includes: a first inner surface which is formed away from an opening end surface of the field device case in an axial direction orthogonal to the opening end surface; a second inner surface which is formed farther away from the opening end surface than the first inner surface in the axial direction; and a cable fixing member which is fixed to the first inner surface and allows the outer shield of the cable drawn by the lead-in part to be in contact with the second inner surface.

Abstract: The present invention relates to magnetic flowmeters. More particularly, the present invention relates to a magnetic flowmeter specifically designed for the hydraulic fracturing industry that is capable of withstanding a variety of corrosive slurries, acids, bases, and solvents including a liner including partially stabilized magnesium zirconia (MgPSZ).

Abstract: In an embodiment a method includes transmitting a signal train through a medium, wherein the signal train includes a sequence of waves of a first group and of a second group, the first and second groups being shifted in a time domain according to a predetermined phase shift, receiving the signal train as a received signal train and as a function of time, detecting a phase shift in the received signal train, assigning wave periods of the received signal train to respective wave periods of the first group using the detected phase shift as reference and determining a sequence of time-of-flight signals from the sequence of waves of the first group and the assigned wave periods of the received signal train, respectively.

Abstract: A system includes upstream process equipment and downstream process equipment. The upstream process equipment is configured to transmit a predetermined fluid to the downstream process equipment. A manually operated valve fluidly couples the upstream process equipment to the downstream process equipment. A removable ultrasonic wireless flow meter is coupled to piping downstream from the manually operated valve. A control system is coupled to the manually operated valve and the removable ultrasonic wireless flow meter. The control system determines an optimum time and speed to actuate the manually operated valve using a predictive model based on a valve size of the manually operated valve, a valve age of the manually operated valve, fluid type, a criticality index of the manually operated valve, a measured flow rate from the removable ultrasonic wireless flow meter, and corresponding coefficients.

Abstract: Systems and methods for measuring air restriction in a vehicle are provided. In some aspects, a method includes providing an electrically operable, air restriction device configured to measure an air restriction in at least a portion of a vehicle's air system, and operating the electrically operable, air restriction device using power provided by a power system on the vehicle. The method also includes controlling power to the electrically operable, air restriction device using a hood switch that is connected to the power system.

Abstract: The present disclosure provides methods, Internet of Things (IoT) systems, and mediums for correcting a smart gas flow. The method may be implemented by a smart gas device management platform of an IoT system for correcting a smart gas flow. The method may include: obtaining reading data of a gas meter; determining a first confidence level of the reading data based on the reading data; in response to a determination that the first confidence level is smaller than a confidence level threshold, obtaining a working condition parameter; and determining, based on the working condition parameter, a gas meter correction mode.

Abstract: The invention relates to a device (1) for determining a filling level of a liquid (F) in a container (B), comprising a submersible unit (2) having a pressure sensor unit (3) and a transmitter unit (14) configured as a radio transmitter unit, an ultrasonic transmitter unit or a light signal transmitter unit, and a float unit (5) having a further pressure sensor unit (6) and a further transmitter unit (15) configured as a radio transmitter unit, wherein the further pressure sensor unit (6) is arranged at or in a floating body (7) of the float unit (5) in such a manner that, if the float unit (5) is arranged in the liquid (F) for which the device (1) is intended to determine the filling level, the further pressure sensor unit (6) is arranged below the surface (O) of the liquid (F).

Abstract: An ice maker includes a refrigeration system, a water system, and a control system. The control system includes an air fitting disposed above the sump of the water system, a pneumatic tube, and a controller including a processor and an air pressure sensor. The air fitting defines a chamber in which air may be trapped and includes one or more openings through which water in the sump is in fluid communication with the air in the chamber. The pneumatic tube is in fluid communication with the air pressure sensor and the air fitting. The air pressure sensor is adapted to sense a pressure corresponding to a sump water level. The controller is adapted to control the operation of the refrigeration system and the operation of the water system based upon the sump water level. To avoid errors in water level measurements due to temperature changes, the system uses the pressure sensor data's noise level to detect when the water level reaches the bottom of the air fitting.

Abstract: A signal transmitter for a fill level sensor, a conductor path arrangement is printed on a resistor arrangement. The resistor arrangement is located below a slideway and is accessible between conductor path sections for trimming of the resistor. The signal transmitter is of particularly compact configuration and can be produced at low cost.

Abstract: A portable weighing unit (10) comprising a body having a pair of side walls (12, 14) and an end wall (13) defining a space for receiving an animal. A holder (17) mounted with respect to the body and configured to receive an enticement (18) for attracting an animal into the space. A reader (19) mounted with respect to the body and configured to read animal identification (ID) information provided on an ID tag of the animal. A platform (15) located within said space to receive the front feet of the animal and take a weight measurement of the front feet. A controller (20) for receiving the said weight measurement from the platform and the animal ID information from the reader and transmit them to a remote processor for processing wherein the processor is configured to convert the weight measurement of the front feet to a full body weight measurement for the animal.

Abstract: A mobile weighing apparatus includes a base tubing, a column extending from the base tubing, a handle extending from the column, a plurality of wheels, a weighing platform, and a plurality of load cells coupled to or between the base tubing and the weighing platform. The weighting platform may be suspended from the load cells, such as with wire rope bolts, such that a force applied to the column does not affect weighment of an object on the weighing platform. The apparatus may include a kingpin-less swivel rear wheel, a rear wheel brake to preclude rotation of the rear wheel about an axle of the rear wheel, and an actuator to actuate the rear brake when the rear wheel is in any position over a 360-degree range. The wheels may be positioned adjacent respective corners of a triangularly shaped base tubing, and the apparatus may further include a clinometer.

Abstract: Embodiments disclosed herein are directed to apparatus and methods for automatic fluid flow system connectors. The system generally includes a load cell interface coupled to a console and a ring connector coupled to a fluid collection system. The ring connector can be releasably engaged with the load cell using an engagement structure such as a latch, locking arm, or spring clip mechanism. The ring connector and load cell can include electrical contacts configured to engage along an axis that extends perpendicular to a surface that the electrical contacts are disposed on. Advantageously, reduced wear on the electrical contacts should extend the usable life of the system.

Abstract: It is intended to provide a phase measurement method and a signal processing device that are capable of reducing influence of noise of a measuring device without increasing the peak intensity of an incident light pulse when measuring the phase of scattered light in DAS-P.

Abstract: A spectrometer includes a transparent substrate including a first surface and a second surface that face each other and are substantially parallel to each other; a slit provided on the first surface and through which light is incident onto the transparent substrate; a spectrum optical system including metasurface including a plurality of nanostructures that are two-dimensionally arranged and satisfy a sub-wavelength scattering condition, wherein the metasurface includes a focusing metasurface which includes first nanostructures of the plurality of nanostructures, and is configured to reflect, disperse, and focus the light incident thereon through the slit, at different angles based on respective wavelengths; and a sensor configured to receive the light from the focusing metasurface. When L is a total length of an optical path from the slit to the sensor and D is a thickness of the transparent substrate, L and D satisfy the following inequality: L/D>3.

Abstract: Automatic ambient light cancellation for an optical front end. The present disclosure includes a coarse loop and fine loop in a feedback circuit configured to cancel out currents generated by detection of ambient light. An optical front end comprises a single-ended photo-diode connected to a transimpedance amplifier (TIA) followed by a buffer stage to generate differential output. A feedback loop controls a current digital to analog converter (iDAC) which is used to cancel out undesired current (e.g., from ambient light). This results in the TIA from saturating and maintain good signal quality with greater sensitivity.

Abstract: Optical systems have uses, such as in spectrometers, for directing a beam. A spectrometer, for example, utilizes an optical system for directing an incident beam toward a sample and receiving a spectroscopy signal from the sample. In various implementations, for example, an optical system may be further configured to move a beam with respect to a target, such as a sample, and still provide a home position where the beam is directed in a stationary configuration. A self-homing (e.g., self-centering) optical system may provide a “home” position in which the beam is directed in a first stationary mode while still allowing a focused beam to be moved with respect to a target in a second dynamic mode.

Abstract: A thermal imager device, where the thermal imager device includes a thermal imager housing. The thermal imager housing includes a display and user controls. The thermal imager device also includes a removable detector housing including a thermal detector. The thermal imager device also includes a flexible connector configured to detachably couple the removable detector to the thermal imager housing, the flexible connector including a first end, a second end, and a body between the first end and the second end, where the flexible connector is configured to detachably couple to the thermal imager housing at the first end, and where the flexible connector is configured to detachably couple to the removable detector housing at the second end.

Abstract: A non-contact temperature measuring device for an accessory comprises a body unit; a fixing unit to which the body unit is coupled; a distance sensor configured to measure a distance to an object; a temperature sensor configured to measure a temperature of the object; a control unit operatively connecting the distance sensor and the temperature sensor to obtain the temperature of the object; a display unit displaying the temperature obtained; and a connector configured to supply power, wherein the fixing unit includes a coupling part including a receiving groove capable of receiving the connector of the body unit, a support part connected to the coupling part and having an adhesive surface for bonding to another device; and an outer part configured to be connected to the coupling part, and when the body unit is fastened to the coupling part, surround an outer surface of the body unit.

Abstract: A method for operating a thermal imaging camera includes measuring two-dimensional temperature information including a thermal image of a setting using an infrared detector array of the thermal imaging camera, the infrared detector array including a plurality of pixels sensitive to infrared radiation. At least one of ambient humidity information and ambient air temperature information is provided. An evaluation device is used to calculate two-dimensional information about a mold formation risk. The method includes generating a mold risk map of the setting using a mold growth model and using the calculated two-dimensional temperature information, and the provided at least one of ambient humidity information and ambient air temperature information.

Abstract: An optical device is provided. The optical device includes a time-of-flight (TOF) sensor array, a photon conversion thin film, and a light source. The photon conversion thin film is disposed above the time-of-flight sensor array. The light source emits light with a first wavelength towards the photon conversion thin film to be converted into light with a second wavelength received by the time-of-flight sensor array. The second wavelength is longer than the first wavelength.

Abstract: A device of integration of an electric current received on an integration node, includes an operational amplifier, an integration capacitor, and a circuit for modifying an output voltage of the operational amplifier formed by a charge transfer circuit configured to be connected on the integration node and to transfer charges into the integration capacitor. The device also includes a comparison circuit configured to trigger the modification circuit at least once during the integration duration, and a storage circuit configured to store the number of triggerings which have occurred during the integration duration. The received electric current is calculated according to the output voltage as well as to the number of triggerings multiplied by the modification of the output voltage induced by the modification circuit.

Abstract: Various embodiments disclosed herein describe a divided-aperture infrared spectral imaging (DAISI) system that is adapted to acquire multiple IR images of a scene with a single-shot (also referred to as a snapshot). The plurality of acquired images having different wavelength compositions that are obtained generally simultaneously. The system includes at least two optical channels that are spatially and spectrally different from one another. Each of the at least two optical channels are configured to transfer IR radiation incident on the optical system towards an optical FPA unit comprising at least two detector arrays disposed in the focal plane of two corresponding focusing lenses. The system further comprises at least one temperature reference source or surface that is used to dynamically calibrate the two detector arrays and compensate for a temperature difference between the two detector arrays.

Abstract: Disclosed are a decoherence processing method and system, and a coherent light receiving apparatus. The coherent light receiving apparatus comprises a plurality of photoelectric conversion units. The method comprises: performing phase comparison between electric signals, obtained by means of conversion performed by at least two of a plurality of photoelectric conversion units, and a reference signal to obtain a corresponding phase difference; according to the obtained phase difference, respectively performing phase compensation on the electric signals obtained by means of conversion performed by the at least two photoelectric conversion units, so as to obtain at least two compensated electric signals of the photoelectric conversion units; and using the at least two compensated electric signals of the photoelectric conversion units to superpose and output electric signals.

Abstract: A method of determining a temperature of a patient includes measuring a first temperature of the patient with a temperature device, and measuring a second temperature of an environment with the temperature device. The method includes determining if a change in the ambient temperature exceeds a threshold. If the change does exceed the threshold, the method also includes applying a correction factor to the first temperature of the patient to account for the change in ambient temperature.

Abstract: In a thermo-physical property measurement instrument, a light shield that shields from light except for an aperture is provided facing the front surface of a sample thin film of a sample. Heating light of repeated pulse that is output from a heating laser irradiates the sample thin film through the light shield. Temperature measurement light of continuous light that is output from a temperature measurement laser is applied to a measurement position a predetermined distance away from a heating light irradiation position on the sample thin film. A photodetector detects reflected light of the temperature measurement light off the sample thin film, and a computer acquires a thermo-reflectance signal that was digitally converted by an AD converter. The computer calculates a thermo-physical property value in the in-plane direction of the sample thin film of the sample on the basis of the acquired thermo-reflectance signal.

Abstract: A method of monitoring an internal body temperature of a patient includes detecting a skin temperature of the patient using a temperature sensor in a body-mountable temperature monitor attached to the patient; calculating, using the temperature sensor, a heat flux associated with the body-mountable temperature monitor based on selectively activating a heater in the body-mountable temperature monitor; and determining the internal body temperature of the patient using the skin temperature and the heat flux.

Abstract: A temperature abnormality detection system of the present invention includes a first temperature sensor that measures a first temperature indicated by a target device and a second temperature sensor that measures a second temperature indicated by ambient air around the target device. A temperature difference between the first temperature and the second temperature is calculated, and when this temperature difference becomes a predetermined threshold value or more, it is determined that a temperature abnormality of the target device has occurred.

Abstract: An electronic device includes a module that delivers a positive temperature coefficient output voltage at an output terminal. A thermistor includes a first MOS transistor operating in weak inversion mode and having a negative temperature coefficient drain-source resistance and whose source is coupled to the output terminal. A current source coupled to the output terminal imposes the drain-source current of the first transistor.

Abstract: A low power temperature detection method, system, and apparatus sense when a temperature threshold is reached by connecting a current conveyor (111) with a startup bias circuit (112) having a first FET (P1) (connected to level shift a reference voltage to provide an input voltage VS1), a first diode-connected BJT (Q0) (connected to generate a base-emitter voltage based on the junction temperature), and a second FET (P2) (connected to level shift the base-emitter voltage), where the startup bias circuit (112) selectively connects the current conveyor (111) to ground to form a closed loop that is activated only when an emitter current at the first diode-connected BJT (Q0) enters a self-turned-on operation region, thereby activating the current conveyor to detect a temperature threshold being reached by the device junction temperature.

Abstract: A temperature sensing circuit a switched capacitor circuit selectively samples ?Vbe and Vbe voltages and provides the sampled voltages to inputs of an integrator. A quantization circuit quantizes outputs of the integrator to produce a bitstream. When a most recent bit of the bitstream is a logic zero, operation includes sampling and integration of ?Vbe a first given number of times to produce a voltage proportional to absolute temperature. When the most recent bit of the bitstream is a logic one, operation includes cause sampling and integration of Vbe a second given number of times to produce a voltage complementary to absolute temperature. A low pass filter and decimator filters and decimates the bitstream produced by the quantization circuit to produce a signal indicative of a temperature of a chip into which the temperature sensing circuit is placed.

Abstract: A temperature detection device includes: a detection part in which a first resistor element and a second resistor element having different relations between temperature variation and variation in an electric resistance value are provided; a switch provided capable of performing a switching operation so as to be coupled to one of a first circuit including wiring to which the first resistor element is coupled and a second circuit including wiring to which the second resistor element is coupled; a power supply circuit configured to apply a voltage to the one circuit coupled to the power supply circuit through the switch to generate an electric signal in the one circuit; and a controller configured to detect a temperature of the detection part based on a strength of the electric signal output from the one circuit. The controller is configured to periodically cause the switch to perform the switching operation.

Abstract: A fluidic tactile sensor includes a core having an outer core portion, an inner core portion, and a first channel having a first opening at a first surface portion of the outer core portion. An elastic skin is disposed over the first surface portion. A cell is formed between the first surface portion and the elastic skin and fluidly is fluidly connected to the first channel. The cell contains a fluid. A contact force applied to the elastic skin produces a measurable change in fluid pressure inside the cell.

Abstract: A pressure/force sensor comprises a diaphragm structure including a sensing element and a lead structure extending from the diaphragm structure and including first and second traces electrically coupled to the sensing element. The diaphragm structure and the lead structure include a circuit assembly comprising a common insulating layer and a common conductor layer on the insulating layer. The conductor layer includes at least a portion of the sensing element and at least the first trace.

Abstract: An optical cable (31) includes: a stress wave detection optical cable (30) having an optical fiber (7) and a plurality of first steel wires (8) which are helically wound so as to surround the optical fiber (7) and which are surrounded by a flexible material (9); and second steel wires (32) different from the first steel wires (8). The stress wave detection optical cable (30) and the plurality of second steel wires (32) are helically wound to form one annular body as a whole, and a winding angle (?) of the stress wave detection optical cable (30) with respect to the axis is determined by a property value prescribed by Lamé constants of the flexible material (9).

Abstract: A differential pressure transducer assembly having internal sub-components welded together to improve reliability and ease assembly. A method is provided that includes welding a front adapter to a frontside of a header and welding a back adapter to a backside of the header to create a first sub-assembly. The method includes welding the first sub-assembly to a front attachment port to create a second sub-assembly. The method further includes welding a cap to a backside of the back adapter.