Abstract: An optical-coherence-tomography apparatus includes a light-source unit configured to emit light while changing a wavelength of the light; an optical interferometric system configured to split the light from the light-source unit into illuminating light to be applied to an object and reference light, and to generate interfering light from the illuminating light reflected by the object and the reference light; a photodetection unit configured to receive the interfering light, and an information-acquiring unit configured to acquire information on the object from the interfering light received by the photodetection unit. The light-source unit performs wavelength sweep by displacing a movable portion with an electrostatic force generated with the application of a voltage. The optical-coherence-tomography apparatus further includes a pull-in-detection unit configured to detect whether or not a pull-in effect is occurring on the movable portion of the light-source unit.

Abstract: A surface emitting laser includes a lower reflector, an active layer, a gap portion, an upper reflector, and a driving unit. The lower reflector, the active layer, the gap portion, and the upper reflector are arranged in that order. The surface emitting laser is capable of varying a wavelength of emitted light by changing a distance between the upper and lower reflectors. The driving unit moves one of the upper and lower reflectors in an optical axis direction of the emitted light. At least one of the upper and lower reflectors includes a stacked body in which first layers and second layers are alternately stacked, the second layers having a refractive index lower than a refractive index of the first layers, outermost layers of the stacked body being the first layers, and a third layer provided on at least one end of the stacked body.

Abstract: Embodiments of the present invention provide an optical fiber length measurement method and apparatus, where the method is used to measure an optical fiber length between a first device and a second device, and the method includes: acquiring, by a measurement device, timestamp parameters, where the timestamp parameters include a first transmit timestamp Ta1, a first receive timestamp Ta2, a second transmit timestamp Tb1, and a second receive timestamp Tb2; and determining, by the measurement device, the optical fiber length L according to the timestamp parameters, where when (Ta2?Tb1)+(Tb2?Ta1)?n*T, L=2.5*[(Ta2?Tb1)+(Tb2?Ta1)], or when (Ta2?Tb1)+(Tb2?Ta1)>n*T, L=2.5*[(Ta2?Tb1)+(Tb2?Ta1)?n*T]. The method does not depend on a dedicated measurement instrument such as an OTDR, an OFDR, or an OCDR, thereby simplifying a measurement process, and helping reduce a measurement cost.

Abstract: Methods and systems for capturing motion and/or determining the shapes and positions of one or more objects in 3D space utilize cross-sections thereof. In various embodiments, images of the cross-sections are captured using a camera based on reflections therefrom or shadows cast thereby.

Abstract: There are provided a method for measuring a height by a height measuring apparatus including: obtaining, in advance, a height correction value depending on an inclination angle of a surface of the object as an angle correction data; obtaining, from the height value of each pixel of the imaging device, the inclination angle of the surface of the object which corresponds to each pixel position of the imaging device; obtaining the height correction value, which corresponds to the inclination angle obtained, from the angle correction data; and correcting the height value of the surface of the object, which corresponds to each pixel of the imaging device, by using the height correction value obtained.

Abstract: The invention relates to an antenna attitude measurement sensor as well as an attitude measurement method based on this sensor, wherein the antenna attitude measurement sensor is composed of a solar position sensor, a three axial gravity acceleration sensor, a GPS module, a CPU, a power supply module and a memory output module. Antenna attitude measurement method includes the following steps: A. installing antenna attitude measurement sensor; B. acquiring antenna geographic location, antenna hanging height, antenna pitch angle ? and rolling angle ? as well as the incident sunlight azimuth angle ? related to the solar position sensor and the corresponding standard time to form the azimuth angle; C. calculating the vertical incident angle ? and level incident angle ?; D calculating the antenna azimuth ?; E. memory output.

Abstract: The estimation device comprises an estimation assembly for determining a corrected estimated incidence, with the aid of an estimated incidence which is computed on the basis of aerodynamic parameters and of inertial parameters related to the aircraft and of a measured incidence which is determined on the basis of measurements carried out on the aircraft by at least one incidence probe. This estimation device thus makes it possible to obtain estimations of the speed of the aircraft, of its incidence and of the total temperature, on the basis of aerodynamic and inertial parameters.

Abstract: The invention provides a surveying instrument comprising a frame unit rotatable in a horizontal direction, a telescope unit as mounted rotatably in a vertical direction on the frame unit, a driving unit for rotating and driving the frame unit and the telescope unit, a horizontal angle measuring unit for detecting a horizontal angle of the frame unit, a vertical angle measuring unit for detecting a vertical angle of the telescope unit and a control device, wherein the telescope unit has a telescope for sighting an object to be measured and a wide angle camera having a wider field angle than the telescope and for acquiring an image in a sighting direction, wherein the wide angle camera is set so that a sighting position of the sun is on a photodetection element and the sighting position of the sun is at a known position deviated from a field of view of the telescope, wherein the control device detects an image of the sun and a center of the image of the sun from an image acquired by the wide angle camera and co

Abstract: A narrowband transmission system includes a dielectric grating that defines a surface and includes a plurality of longitudinal members arranged along an axis. The longitudinal members are surrounded by a medium. The longitudinal members are made of a material that has an index of refraction that is greater than an index of refraction of the medium. The dielectric grating is configured to receive radiation at the surface. The system further includes a means for breaking a symmetry between the radiation and the dielectric grating such that the dielectric grating transmits a given wavelength band of the radiation through the dielectric grating while rejecting remainder of wavelengths embodied in the radiation.

Abstract: The present invention relates to a sensing system and a sensing method using the same. The sensing system includes at least one tested unit and an optical fiber measuring unit. The tested unit includes a container, a strain arm and a float. The container can be filled with a fluid, and the strain arm is connected with the float and combined with a measuring portion of the optical fiber measuring unit. When the container is disposed on a body of interest, the surface inclination or settlement of the body of interest would cause changes of buoyant force on the floating element and induce bending deformation of the strain arm. Accordingly, the surface deformation of the body of interest can be determined by detecting the bending deformation of the strain arm using the measuring portion combined with the strain arm.

Abstract: Provided are methods and products for rapid, reliable, and accurate monitoring and detecting of convergence in mining and civil engineering applications. A sensor, such as a scanning laser device, is moved through a tunnel, either automatically, autonomously, or with manual guidance. The sensor is configured to acquire 3D point clouds of all or a portion of a tunnel, at selected times. The 3D point cloud data is used to compute a set of indicators, which are local descriptors of the environment along the tunnel. The indicators are then amalgamated to estimate the probability that convergence has occurred in a given region. In one embodiment, the indicators are fused together using a Bayes network.

Abstract: A rotation rate sensor for detecting a rotational movement of the rotation rate sensor about a rotational axis extending within a drive plane of the rotation rate sensor include: a first rotational element, a second rotational element and a drive structure moveable in parallel to the drive plane, the first rotational element being drivable about a first center of rotation to achieve a first rotational vibration in parallel to the drive plane, the second rotational element being drivable about a second center of rotation to achieve a second rotational vibration in parallel to the drive plane, the drive structure being (i) coupled to the first and second rotational elements, and (ii) configured to generate a drive mode in phase opposition of the first and second rotational vibrations.

Abstract: Interferometric measurement device includes a light source emitting a source signal and optical coupling elements receiving the source signal, directing part of the latter towards a measurement pathway including a Sagnac ring interferometer, of frequency fp, producing a power output signal POUT polarized according to a first polarization direction, tapping off another part of the source signal towards a compensation pathway producing a return power compensation signal PRET, and directing the output and compensation signals towards detection elements.

Abstract: A method assisting in navigation of aircraft following a flight plan subject to time constraints comprises: determining a minimum speed profile, a maximum speed profile, and minimum and maximum times of passage; determining, for each constraint of index i, a restricted interval and a required interval; the determination made by a first iterative computation, i being decremented from n?1 to 1 and comprising: determining a required interval of index i enabling the aircraft to observe a restricted interval of index i+1 by flying at a speed profile between the minimum and maximum speed profiles, the restricted interval of index i+1 determined on the preceding iteration for an iteration of index between 1 and n?2, or from the time constraint of index n for the iteration of index n?1; and determining a restricted interval of index i from the intersection of the time constraint and the required interval of index i.

Abstract: A system for providing destination guidance based on tracked real-time ambient health conditions includes one or more location tracking devices carried by one or more participants. The one or more location tracking devices track the locations of the one or more participants and providing the tracked locations to a central server when it is determined that the one or more participants are infected by a communicable ailment. The central server receives the provided tracked locations and transmits the tracked locations to a navigation guidance device carried by a user, without transmitting identifying details about the one or more participants. The navigation guidance device carried by the user provides guidance to the user on selecting a destination or route that avoids contact with or exposure to the plurality of participants.

Abstract: An electronic navigational route developer may accept user input regarding the user's boat, such as height, draft and beam, and develop a route from a start point to end point based on cartographic information and the boat information.

Abstract: The movement guidance device includes a first unit which calculates at least one of an error range of a first arrival time and an error range of a first movement time in a first route to the destination, a second unit which calculates at least one of an error range of a second arrival time and an error range of a second movement time in a second route, which is a route to the destination and is different from the first route, at a point where the second route is branched from the first route, and an output unit which outputs at least one of the error range of the second arrival time and the error range of the second movement time calculated by the second unit based on whether the error range calculated by the second unit is smaller than the error range calculated by the first unit.

Abstract: A user can use a portable electronic device to read destination information at a starting location. The portable electronic device can be, for example, a smartphone. The destination information can be read from a tag located at the starting location. The user can then present the portable electronic device to a reader, which reads the destination information from the device. In response to reading the destination information from the device, various actions can be performed to aid the user. For example, an elevator call can be placed, trip information can be provided to the user, and/or another action can be performed.

Abstract: A method of operation of a navigation system includes: determining a similarity level based on comparing a plurality of a point of interest (POI) record; generating a record cluster based on the similarity level for grouping the plurality of the POI record; and generating an exemplary POI based on the record cluster for displaying on a device.

Abstract: Systems and methods are provided for automated route discovery. A computing device can receive location data for designated actor(s) of a plurality of actors operating within an environment. The plurality of actors can also include a robotic device. The computing device can determine a route network of paths taken by the designated actor(s) within the environment, where the route network includes information about frequencies of paths taken by the designated actor(s) based on the location data. The computing device can receive a starting location and a destination location for the robotic device. The computing device can select a selected path from the starting location to the destination location based on the route network taken by the designated actor(s). The computing device can provide an instruction to the robotic device to use the selected path to travel from the starting location to the destination location.

Abstract: A method of operation of a navigation system includes: determining a destination; determining a target arrival time for traversing to the destination; generating a preferred route based on the target arrival time for arriving at the destination using the preferred route at or before the target arrival time; and communicating the preferred route for providing navigational guidance to the destination.

Abstract: One or more processors identify an occupant of a passenger vehicle, and then receive biometric sensor readings from a biometric sensor that is monitoring the occupant in real time, where the biometric sensor readings indicate a real-time emotional state of the occupant. The processor(s) generate a personal profile for the occupant of the passenger vehicle based on the biometric sensor readings. The processor(s) receive a desired destination and travel schedule for the occupant of the passenger vehicle, as well as environmental sensor readings indicating a real-time environmental state of the passenger vehicle. The processor(s) then create a travel route for the passenger vehicle based on the biometric sensor readings, the personal profile of the vehicle occupant, the desired destination and travel schedule, and the real-time environmental state of the passenger vehicle. One or more processors then transmit, to the passenger vehicle, directions for the travel route.

Abstract: A method or apparatus to provide a display of friends in a local area to a user, receive a request to meet, and calculate an optimal location for a meeting is described. In one embodiment, the system provides guidance to the user to the optimal location.

Abstract: Embodiments of the present invention provide a method, system and computer program product for verification of a generated route in computer assisted navigation. In an embodiment of the invention, a method for verification of a generated route in computer assisted navigation is provided. The method includes receiving an origin and a destination in a mapping application executing in memory by a processor of a computer and generating a first route in the mapping application from the origin to the destination. The method also includes receiving a waypoint for the first route and determining whether or not the waypoint is proximate to the first route. Finally, the method includes validating the first route only if it is determined that the waypoint is proximate to the first route. In one aspect of the embodiment, the method also can include generating an alternative route to include the waypoint if it is determined that the waypoint is not proximate to the first route.

Abstract: An approach is provided for providing a calculated route using waypoints associated with a traveled route. A traveled route platform processes and/or facilitates a processing of one or more location logs to determine one or more waypoints, wherein the one or more location logs include, at least in part, one or more location samples for at least one device on a traveled route. The traveled route platform then processes and/or facilitates a processing of the one or more waypoints via one or more routing engines to determine a calculated route as a representation of the traveled route.

Abstract: Transport communication comprising, associating a wireless device and a user, associating a transport and the wireless device, determining a characteristic of the user based on at least one of a user search history and a user preference selection, determining a probable route the transport based on at least one of a route history and an input destination and ranking at least one suggestion of a route deviation based at least one of the determined probable route and determined characteristic.

Abstract: Frequency-based direction guidance is disclosed. In some implementations, a navigation system leverages frequent location information to filter navigation directions that are presented to a user of a navigation device. If a destination is a frequent location, the navigation system filters the navigation directions so that navigation directions associated with the destination are not presented to the user. If a departure location is a frequent location, the navigation system filters the directions so that directions associated with the departure location are not presented to the user.

Abstract: A navigation apparatus includes a positioning unit configured to measure a current position, a route guidance screen generation unit configured to generate a route guidance screen used for route guidance for a retrieved route from the current position to a destination and display the route guidance screen on a display unit, and a guidance image generation unit configured to, in a case where a remaining distance between the current position and the destination is a predetermined value or less while route guidance is performed using the route guidance screen, generate a guidance image in which a display subject representing the destination is highlighted such that the display subject is more prominently displayed than a vicinity of the display subject and display the guidance image on the display unit.

Abstract: A computer-implemented method of providing personalized route information involves gathering a plurality of past location indicators over time for a wireless client device, determining a future driving objective using the plurality of previously-gathered location indicators, obtaining real-time traffic data for an area proximate to the determined driving objective, and generating a suggested route for the driving objective using the near real-time traffic data.

Abstract: A travel route display device (1) includes a display unit (130), a topographical data storage unit (110b) that stores three-dimensional topographical data, a travel data storage unit (110c) that stores travel data relating to a travel route of a vehicle and a driving status of the vehicle on the travel route, and a control unit (120) that, when displaying the topographical data stored in the topographical data storage unit (110b) on the display unit (130), simultaneously displays, on the display unit (130), the travel route indicated by the travel data stored in the travel data storage unit (110c) in a display mode that corresponds to the driving status.

Abstract: Embodiments include method, systems and computer program products for route planning to reduce exposure to radiation. Aspects include receiving an origin and a destination for a vehicle and determining a plurality of available routes between the origin and the destination. Aspects also include calculating, by a processor, a radiation score for each of the plurality of available routes and presenting one or more of the plurality of available routes with an expected travel time and the radiation score for each of the plurality of available routes.

Abstract: A method and apparatus for location referencing roadway data. A server determines a roadway event; the roadway event including a roadway description and a roadway location. The server then generates a roadway message. The roadway message includes the roadway description and a roadway path. The roadway path includes a LinkID set, a length of the roadway event, and an offset from a reference node of a starting link. The LinkID set includes at least the starting link. The server then broadcasts the roadway message. A device receives the data. The device decodes and displays the data.

Abstract: A metering circuit includes a comparator including a first input to receive an input signal, and including a second input and an output. The metering circuit further includes a reference source to provide a time-varying reference signal to the second input during a peak counting operation.

Abstract: A magnetic angular sensing system has a magnet magnetized radially and a magnetic angular sensor for sensing the angular position of the magnet. The magnetic angular sensor is mounted in parallel to the axis of the magnet and is non-coplanar with the magnet. The magnetic angular sensor senses an angular position of the magnet based on a detected axial magnetic field component and a tangential magnetic field component of the magnetic field vector where the sensor mounted. This invention provides a flexible sensing system.

Abstract: Methods and apparatus for non-intrusive monitoring by sensing physical parameters such as electric and/or magnetic fields. Such apparatus and techniques may find application in a variety of fields, such as monitoring consumption of electricity, water, etc., in homes or businesses, for example, or industrial process monitoring.

Abstract: A method for determining of a position of an object using a sensor arrangement that includes a first magnetoresistive element and a second magnetoresistive element. A source provides a magnetic field with first and second magnetic poles. The source is arranged between the first magnetoresistive element and the second magnetoresistive element with the first magnetic pole facing the first magnetoresistive element and the second magnetic pole facing the second magnetoresistive element. The first magnetoresistive element is arranged in the magnetic field and provides a first output signal dependent on a position of the first magnetoresistive element relative to the magnetic field source. The second magnetoresistive element is arranged in the magnetic field and provides a second output signal dependent on a position of the second magnetoresistive element relative to the magnetic field source.

Abstract: A rotary angle sensor used to determine a relative angular position as compared to a reference position, comprising a housing (1), at least one rotor (3, 4) that is rotatably mounted inside said housing (1), one circuit board (2) containing electrical and/or electronic components as well as one or multiple stators corresponding to the number of used rotors (3, 4). The rotary angle sensor is supposed to be improved in such a manner that a particularly precise alignment of the first rotor (3) in relation to the stator is ensured and that it is inexpensive to manufacture. This is achieved by a first rotor (3) that is interlocked with the housing (1) without any play while a pre-loaded spring washer (14) is positioned on the latching arms (11).

Abstract: A proximity sensor includes an active sensor, a passive target, and a measurement circuit. The active sensor includes an active resonant tank circuit that includes an excitation source, a first capacitor, and a first inductor. The passive target includes a passive resonant tank circuit that includes a second capacitor and a second inductor, where magnetic coupling between the first inductor and the second inductor varies as a function of physical displacement of the first inductor and the second inductor with respect to one another. The measurement circuit is configured to measure a coupled resonant frequency response in the active resonant tank circuit and provide a measured distance output based on the coupled resonant frequency response.

Abstract: A stroke sensor system includes a vehicle-body-side member, a wheel-side member, and a movement-amount deriving section. The movement-amount deriving section derives a movement amount of relative movement between the vehicle-body-side member and the wheel-side member. At least a part of one of the vehicle-body-side member and the wheel-side member is a conductor, and the other is provided with a coil. The movement-amount deriving section includes an even number of capacitors and an even number of exciting sections. The even number of capacitors are electrically coupled to the coil and configure an LC resonance section. The even number of exciting sections are for exciting an oscillation waveform output by the LC resonance section. The even number of capacitors and the even number of exciting sections are divided into equal numbers to configure a balanced circuit. The movement-amount deriving section derives the movement amount based on the oscillation waveform.

Abstract: A measurement scale device includes at least one scale marking, wherein the or each scale marking includes at least one periodic nanostructure that represents scale device information.

Abstract: The present disclosure relates to a macro-micro composite grating ruler measuring system based on conversion and amplification in vertical and horizontal directions. The macro-micro composite grating ruler includes a grating ruler, a macro-micro reading system moving with respect to the grating ruler, and a counting and image processing module. The macro-micro reading system faces grating strip datum and is parallel to the grating ruler. The system further includes a measuring reference line. The measuring reference line obtained by the image sensor together with grating strips forms an image overlap in the counting and image processing module. The measuring reference line and the grating strip jointly include an angle ?. With the foregoing configuration, the present invention is compatible with the existing incremental grating rulers and absolute grating rulers, so is highly applicable.

Abstract: Provided is a sensor node package where the breakage of a package member and/or a lid member due to thermal stress is reduced. The Young's modulus (220 GPa or less) of the package member, the thermal expansion coefficient (2 to 12 ppm/° C.) of the package member, the difference (5 ppm/° C. or less) in thermal expansion coefficient between the package member and the lid member, and the thickness (3 mm or less) of the lid member are adapted respectively to fall within predetermined ranges, thereby making it possible for the breakage of the package member and/or lid member due to thermal stress to be reduced effectively.

Abstract: A composite laminate assembly for an electronic device provides integrated backlighting for one or more indicator shapes defined by the assembly. The assembly includes a substantially opaque cover member to obscure at least parts of the electronic device. Translucent indicator structures in the cover member define respective indicator shapes to allow backlighting to pass through the cover member. An optical matrix layer of an optically conductive material is attached to an inner face of the cover member, with a plurality of lighting devices embedded in the optical matrix layer and laterally offset from associated indicator structures. The plurality of lighting devices may be connected to an electric circuit carried on the inner face of the cover member.

Abstract: Actuator bracket having a sensor is disclosed. An example apparatus includes a bracket having a first side and a second side opposite the first side. The first side is to couple to a first surface of an actuator. The second side is to couple to a controller. The apparatus also includes a first sensor coupled to the first side of the bracket. When the bracket is coupled to the first surface of the actuator, the first sensor is adjacent the first surface to measure a characteristic of the first surface of the actuator.

Abstract: A pointer is rotational relative to a screen. A driver unit is equipped with the pointer and configured to rotate the pointer. A controller sends an output signal to the driver unit to rotate the pointer at a rotational position in a rotational range. The controller is configured to modify the rotational range. The controller is configured to modify the graphic according to the rotational range, which is modified.

Abstract: Embodiments are directed to performing material balance analysis for tanks in a petroleum reservoir and to performing dual porosity material balance analysis. In one scenario, a computer system divides a reservoir into multiple tank blocks, where at least two tank blocks are adjacent. The adjacent tanks are connected at a tank block boundary so that materials are permitted to travel between the tank blocks. The computer system determines flow rate between adjacent tank blocks proportional to the difference in tank block pressures. Then, upon making this determination, the computer system determines material balance for at least some of the tank blocks in the reservoir through influx and efflux of material across the tank block boundary. The material balance includes a determined material balance for one of the adjacent tank blocks and a determined material balance for the other adjacent tank block.

Abstract: A system for measuring flow rate within a volume includes one or more transmission devices that transmit one or more signals through fluid contained within the volume. The volume may be bounded, at least in part, by an outer structure and by an object at least partially contained within the outer structure. A transmission device located at a first location of the outer structure transmits a first signal to a second location of the outer structure. A second signal is transmitted through the fluid from the second location to a third location of the outer structure. The flow rate of the fluid within the volume may be determined based, at least in part, on the time of flight of both the first signal and the second signal.

Abstract: A flow imaging and monitoring system for synchronized management of wide area drainage that includes an interposer for supporting monitoring and management equipment in a manhole, a module for illuminating water flowing in pipes at the base of the manhole, a module for monitoring responses to reflected light, a sealed and rechargeable battery pack, and a data analysis and management system to interpret data streams in real time. The interposer can be adjusted to fit the diameter of the manhole and can be adjusted to be placed under the manhole cover. The module for illuminating the flowing water can be adjusted to generate various frequencies. The support structures for the modules can be adjusted for varying pitch, roll and yaw with respect to the manhole. The data analysis and management system is supported by cloud computing.

Abstract: An object of the present invention is to provide a thermal-type air flow meter with a high measurement accuracy by reducing influence of a thermal stress generated in a resistor in an LSI while securing a high positioning accuracy flow rate detection unit.

Abstract: The purpose of the present invention is to provide a flow sensor that makes it possible to detect temperature abnormalities that the flow sensor has been exposed to and the time history of the flow sensor in a high-temperature environment from an externally visible cover material and that uses a cover material for which the laser welding quality can be guaranteed through visual inspection when the sensor is delivered as a product and even if the sensor is used in an abnormal state. A flow sensor provided with a housing, a cover, a circuit chamber that houses a wiring portion sealed between the housing and the cover, and an auxiliary passage through which the liquid to be sensed flows, wherein: a joint portion formed on the housing and a joint portion formed on the inner surface of the cover are joined together through the laser welding; the main material of the cover is a crystalline resin; the cover includes an amorphous alloy; and the cover is made to have a natural color.