Abstract: There is provided a misalignment detecting device being capable of detecting and correcting distortion of a spoked wheel with a simple configuration.

Abstract: Provided are a system and a method capable of accurately measuring consecutive shapes of a measurement target even when an imaging means, which captures images of the shape of the measurement target, is moved along the measurement target while irradiating the measurement target with light.

Abstract: The present invention relates to a light source device and a measuring device which use a change in mode-locked resonated output light over time using a change in a cycle of an electrical signal corresponding to a change in the intensity of the output light according to a mode locking condition for each of different light paths in a resonator. The light source device includes an electrical signal generator configured to control the intensity of an optical signal from the light source device, and an optical gain unit controlled by periodic electrical signals having cycles calculated by dividing a round-trip time of photons corresponding to each of different light paths by an integer multiple. The intensity of the optical signal is controlled by the optical gain unit.

Abstract: The ROC value of a test surface is measured with a single spectrally-controlled interferometric measurement using a reference source of known ROC. The test surface is placed at the confocal position of the reference surface and the light source is modulated so as to produce localized interference fringes at the location of the test surface. The interference fringes are then processed with conventional interferometric analysis tools to establish the exact position of the test surface in relation to the reference surface, thereby determining the distance between the test surface and the reference surface. The radius of curvature of the test surface is obtained simply by subtracting such distance from the known radius of curvature of the reference surface.

Abstract: To count cords embedded in a rubber sheet with good working efficiency while improving the reliability and accuracy, a method includes a step S1 of acquiring raw waveform data D1 by scanning the outer surface of the rubber sheet with a displacement sensor, a step S2 of obtaining first corrected data D2 by performing a moving average processing on the raw waveform data D1, a step S3 of obtaining second corrected data D3 by converting the amplitude center j of waveform of the first corrected data D2 into a straight line, a step S4 of obtaining concave-center-position data D4 in which the concave-center-positions Q between the cords are defined by positions of lowest points of valleys of the waveform of the second corrected data D3, a step S5 of obtaining first corrected concave-center-position data D5 in which, by comparing intervals K between the Q with an upper threshold Kmax and lower threshold Kmin therefor, the concave-center-positions Q are added/deleted, and a step S5 of obtaining second corrected concav

Abstract: A method obtains the shape of a target by projecting and recording images of dual frequency fringe patterns. Locations in each projector image plane are encoded into the patterns and projected onto die target while images are recorded. The resulting images show the patterns superimposed onto the target. The images are decoded to recover relative phase values for the patterns primary and dual frequencies. The relative phases are unwrapped into absolute phases and converted back to projector image plane locations. The relation between camera pixels and decoded projector locations is saved as a correspondence image representing the measured shape of the target. Correspondence images with a geometric triangulation method create a 3D model of the target. Dual frequency hinge patterns have a low frequency embedded into a high frequency sinusoidal, both frequencies are recovered in closed form by the decoding method, thus, enabling direct phase unwrapping.

Abstract: A master disk which simulates a tire and is used at the time of confirmation or correction of measurement accuracy of a geometry measuring device for measuring the surface shape of a tire, of a tire testing machine, includes: a simulated tire section simulating a tire; a lower tubular section having a cylindrical shape, in which the tip side thereof is connected to the lower end side of the simulated tire section so as to be coaxial with the simulated tire section and a guide surface inclined in a tapered shape so as to have a larger diameter toward the base end side is formed on the base end side of an inner peripheral surface; and a neck section and a flange section which are provided on the upper end side of the simulated tire section and detachably engaged with test rim moving and exchanging means of a tire holding device of the tire testing machine.

Abstract: A spirit level comprising a generally central elongate bar (1), and at least one pair of arm members (6) pivotally coupled at a respective end of said bar for movement between a first, extended, generally H-shaped configuration in which said arm members (6) extend from said end of side bar at an angle thereto, and a second folded configuration, in which a side-wall of each of said arm members (6) is substantially parallel to and located against or adjacent to a side edge of said central bar, wherein at least one bulb (2) containing a bubble is provided in or on said central bar (1) and oriented substantially parallel to its longitudinal axis, and at least one bulb (2) containing a bubble is provided in or on an arm member (6) and oriented substantially parallel to its longitudinal axis.

Abstract: A MEMS gyroscope is equipped with: at least a first mobile mass suspended from the top of a substrate by means of elastic suspension elements coupled to anchor points rigidly fixed to the substrate, in such a manner as to be actuated in an actuating movement along a first axis of a horizontal plane and to carry out a measurement movement along a vertical axis, transverse to the horizontal plane, in response to a first angular velocity acting about a second axis of the horizontal plane, transverse to the first axis. The elastic suspension elements are configured in such a manner as to internally compensate unwanted displacements out of the horizontal plane along the vertical axis originating from the actuating movement, such that the mobile mass remains in the horizontal plane during the actuating movement.

Abstract: A physical quantity sensor includes a driven section and a drive spring that supports the driven section so that the driven section is displaceable in a first direction. The drive spring has a serpentine shape and includes a plurality of spring structures extending in a second direction that intersects a first direction. At least one of the spring structures has a thin section that is thinner in a third direction that intersects the first and second directions than the other portions of the drive spring.

Abstract: Systems, apparatus and methods to supplement, combine, replace, verify and calibrate in-vehicle and in-device sensors and GNSS systems are presented. A mobile device and a vehicle navigation system share sensor and GNSS information to arrive at an improved navigation solution. For example, a navigation solution computed by a vehicle may rely on a sensor signal from a mobile device. Similarly, a navigation solution computed by a mobile device may use a sensor signal or a GNSS signal from a vehicle.

Abstract: A lane departure detection computing device for a roadside device is disclosed. The computing device is configured to execute instructions stored in a memory to: calculate a first path geometry relating to a first vehicle traveling in a first lane; calculate a second path geometry relating to a second vehicle traveling in a second lane different from the first lane; evaluate coextensive portions of the first path geometry and the second path geometry for parallelism; if the coextensive portions of the first path geometry and the second path geometry evaluated for parallelism are not parallel, determine that one of the first vehicle and the second vehicle is executing a lane departure; and operate a vehicle configured for autonomous operation responsive to the determination that one of the first vehicle and the second vehicle is executing a lane departure.

Abstract: Absolute position data (605) of a machine are determined for respective multiple times (t.1, t.3, t.5, t.8, t.11), and odometry position data of the machine are also determined. A pose graph (661) is generated, wherein edges (672) of the pose graph (661) correspond to the odometry position data, and nodes (671) of the pose graph (661) correspond to the absolute position data (605). The pose graph (661) is optimized to obtain an estimated position. Optionally, the odometry can also be estimated. A driver assistance functionality of the machine, for example a motor vehicle, can be controlled optionally on the basis of the estimated position. For example, the driver assistance functionality can relate to autonomous driving.

Abstract: A non-transitory, computer-readable recording medium stores therein a notification program that causes a computer to execute a process including acquiring position information regarding changing positions of a mobile body that moves by wind power; acquiring state information regarding a state of the mobile body at each of the positions; determining whether the state is within a predefined range; and outputting a result of the determination.

Abstract: A non-transitory, computer-readable recording medium stores therein a display program that causes a computer to execute a process including acquiring position information regarding changing positions of a mobile body that moves by wind power; calculating based on the position information, a speed of the mobile body at each of the positions and a running direction of the mobile body at each of the positions relative to a wind direction; accumulating information regarding the speed and the running direction; and comparing and displaying first information accumulated regarding the speed and the running direction and second information narrowed down from the first information, based on a plurality of types of tools used on the mobile body.

Abstract: Example implementations relate to map generation and alignment. For instance, a computing system may receive and use sensor data indicative of positions of multiple markers positioned relative to a sensor within an environment to determine a pose of the sensor and also create a map that indicates the markers positions. The computing system may also receive and use subsequent sensor data indicative of distances from the sensor to surfaces in the environment and the determined pose of the sensor to determine an occupancy grid map that represents the surfaces within the environment. The computing system may then determine a transformation between the map of the markers and a design model of the environment that relates occupied cells in the occupancy grid map to sampled points from the design model, and provide the transformation between the map of the plurality of markers and the design model.

Abstract: Systems and techniques for determining and/or generating a navigation path through a three-dimensional (3D) model are presented. At least one waypoint location within a captured 3D model of an architectural environment is determined. A path within the captured 3D model, to navigate between a first location associated with the captured 3D model and a second location associated with the captured 3D model, is determined based on the at least one waypoint location. Visual data indicative of 2D data or 3D data of the captured 3D model along the path is transmitted to a remote client device to simulate navigation of the path within the captured 3D model between the first location and the second location.

Abstract: Embodiments are provided that include receiving sensor data from a sensor positioned at a plurality of positions in an environment. The environment includes a plurality of landmarks. The embodiments also include determining, based on the sensor data, a subset of the plurality of landmarks detected at each of the plurality of positions. The embodiments further include determining, based on the subset of the plurality of landmarks detected at each of the plurality of positions, a detection frequency of each landmark. The embodiments additionally include determining, based on the determined detection frequency of each landmark, a localization viability metric associated with each landmark. The embodiments still further include providing for display, via a user interface, a map of the environment. The map includes an indication of the localization viability metric associated with each landmark.

Abstract: An example map update method is performed by an in-vehicle terminal. The map update method includes: obtaining a current data record, where the current data record includes current image data and current positioning data; comparing the current data record with navigation map data, where the navigation map data includes map image data and map positioning track data; and updating the navigation map data according to a comparison result. The technical solutions in the embodiments of the present invention help improve intelligence and accuracy of a map update and shorten an update period.

Abstract: Apparatus and methods related to generating roadmaps are provided. A layout of an environment can be displayed on a display. Input data indicative of a plurality of shapes placed on the layout can be received, where each shape corresponds to an aisle of a plurality of aisles. For each aisle, lanes can be generated based on a width of the aisle, and the lanes extend along the aisle such that a robotic device can traverse each lane. An intersection between a first shape and second shape can be identified, where the first and second shape correspond to a first and second aisle. Responsive to identifying the intersection and based on a swept space of the robotic device, a curve that connects a first lane of the first aisle to a second lane of the second aisle can be generated. Then, a roadmap that comprises the aisles and curve can be generated.

Abstract: The present disclosure provides method and device of establishing a navigation route. The method includes: acquiring a user's current position and a destination for the user; and establishing a navigation route between the current position and the destination according to user information and destination information, the user information including the type and/or a current speed of the user, the destination information including the number of people and/or an estimated visit duration at the destination, the destination including ones, at which the user has not yet arrived, of recommended sightseeing spots and/or user-interested sightseeing spots.

Abstract: A navigation instruction prompting method, a prompting device, a vehicle and a navigator are disclosed. The prompting method comprises: establishing a communication connection between a navigation service providing device and a navigation instruction prompting device arranged on a vehicle; receiving by the navigation instruction prompting device a navigation instruction sent by the navigation service providing device; and prompting prompting a direction to a user by the navigation instruction prompting device in a prompting manner corresponding to the navigation instruction, the prompting manner including one or both of a physical sensation prompting manner and a light emitting prompting manner. According to an embodiment, when a user is prompted a driving direction, distraction of the user's attention is minimized, thereby facilitating traffic safety.

Abstract: The present disclosure provides methods and an apparatuses for acquiring route popularity in road networks. One exemplary method includes: acquiring a plurality of points of interest (POIs) included in road networks and positioning data of a plurality of positioning terminals; mapping the positioning data of each positioning terminal to POIs included in the road networks to obtain one or more POIs associated with the positioning terminal; acquiring a travel route map of the positioning terminal according to the one or more POIs associated with the positioning terminal; acquiring a preferred travel route of the positioning terminal according to the travel route map of the positioning terminal; and aggregating the preferred travel routes of the plurality of positioning terminals to obtain a route popularity distribution map of the road networks.

Abstract: A method includes generating, by a first transportation service, a first route based on a transportation request. The method further includes providing, to a computing device, first navigation information based on the first route to direct the computing device to service the transportation request. The method further includes generating, based on second transportation service data received from a second transportation service, a second route corresponding to the transportation request. The second route includes a first segment to be serviced by the computing device of the first transportation service using a first transportation vehicle and a second segment to be serviced by the second transportation service using a second transportation vehicle. The method further includes providing, by the first transportation service, second navigation information to the computing device to direct the computing device to service the first segment of the second route.

Abstract: Systems and methods are disclosed for generating a display of a navigation map. The system may comprise a historical data source device having, for example, a historical data source computer and a database storing historical data associated with one or more of vehicle accident data, traffic data, vehicle volume data, vehicle density data, road characteristic data, or weather data. The system may comprise a map data processing device having a map data processing computer and memory storing computer-executable instructions that, when executed by the map data processing computer, cause the map data processing device to, for example, determine, based on a location determining device, a location of a vehicle. The map data processing system may determine one or more historical factors based on the location of the vehicle. The map data processing system may receive, from the historical data source device and for the location, historical data associated with the one or more historical factors.

Abstract: A vehicular display device includes a display configured to display an image in a display area that overlaps a position of a windshield of a vehicle, a display processor configured to display a direction guide image in the display area in a manner superimposed on a road on which the vehicle is traveling, the direction guide image being an image showing a turn position where the vehicle is to make a turn on the road, and a display pattern determiner configured to determine a display pattern of the direction guide image based on a traveling speed of the vehicle. The display pattern determiner determines the display pattern such that, the higher the traveling speed is, the longer a length from a top end to a bottom end of the direction guide image is.

Abstract: Method and apparatus are disclosed for control module activation of vehicles in a key-off state to determine driving routes. An example system includes a vehicle at a location in a key-off state. The vehicle includes a communication module to receive an activation signal and a telematic control unit. The telematic control unit is to activate upon receipt of the activation signal and determine and present a route from the location. The example system also includes a remote processor to determine the location, identify an event and an end time based upon the location, and send an activation signal based upon the end time.

Abstract: A system includes a processor configured to display a traveled-portion of a route, responsive to a request, the traveled-portion representing an entire route traveled since the request was received, including scaling the display so that an entire route is included in a window of fixed size, regardless of how large a distance the displayed traveled-portion represents.

Abstract: Embodiments of the present invention provide a method of providing data associated with a point of interest (POI), comprising determining, based on a location of a POI, a portion of digital map data of a geographic region, said digital map data comprising a plurality of segments representing navigable elements of a navigable network within the geographic region, and generating POI-map data associated with the POI indicative of at least some segments within the portion of digital map data.

Abstract: A positioning device for a machine tool includes a substrate upon which a printing medium is deposited. The substrate has a longitudinal dimension that is longer than the transverse direction of the substrate. The printing medium includes magnetic or magnetizable particles, and the substrate is nonmagnetic. A scale is formed by first regions of the printing medium on the substrate and by second regions without the printing medium between adjacent first regions. The first regions are spaced apart in the longitudinal direction on the substrate. The printing medium is printed within the first regions on the substrate such that the printing medium is thinner in the interior of the first regions and thicker at the edges of the first regions. The location of the positioning device is determined by applying a measuring magnetic field and by detecting a resulting magnetic field emanating from a particular first region on the scale.

Abstract: Disclosed is a localizer system. The localizer system may be incorporated into a navigation system for tracking a tracking device. Generally, the localizer may include a transmitting coil array and a field shaping assembly.

Abstract: Disclosed are electronic devices for detecting contact or close proximity to an object to be detected. An electronic device includes a capacitive sensor enclosed by a housing and a controller coupled to the capacitive sensor, where the controller is configured to detect contact or close proximity to an object to be detected, and where the capacitive sensor includes a capacitor with a sensor electrode. The sensor electrode is separated from an outer surface of the housing by the housing. At least a portion of the housing includes a partially conductive material and the sensor electrode is in conductive contact with the partially conductive material, or the sensor electrode is in conductive contact with an electrically conductive element on an inner surface of the housing or at least partially embedded in the housing.

Abstract: Disclosed is a resolver robust against external noise and having a reduced error in the detection of a rotation angle, which includes a stator made of a magnetic material and having a plurality of teeth and a plurality of slots alternately formed at an inner side thereof, insulation covers respectively having a tooth insulating unit formed at an inner side thereof corresponding to the teeth and mounted to the stator at both upper and lower surfaces of the stator, and coils wound on the teeth with the tooth insulating unit being interposed therebetween, wherein regarding winding widths of coils located at an outermost circumference among the wound coils, a ratio of a shortest winding width to a longest winding width is 0.69 or above and 1 or below.

Abstract: An encoder includes an optical scale including a scale portion that is constituted with a polarizer, a light emitting portion which emits light, an optical element unit which divides the light into first light and second light and makes the first and second lights incident onto the scale portion, and a light receiving portion which receives the first light and the second light from the scale unit and outputs a signal corresponding to intensities of the received first light and second light, and in which the first light and the second light overlap other within a plane of the scale portion.

Abstract: The present disclosure relates to a laser ranging device. The laser ranging device includes an encoded chassis, a rotary disc, a first barrier ring on the rotary disc and/or a second barrier ring on the encoded chassis. The encoded chassis includes a rotary bin and a plurality of ranging teeth disposed at intervals on the periphery of the rotary bin. The rotary disc is mounted within the encoded chassis and is rotatable within the rotary bin when the rotary disc is driven. The first barrier ring is disposed at the edge of the bottom surface of the rotary disc and the second barrier ring is disposed at the periphery of the ranging teeth, and the first barrier ring is located at the periphery of the ranging teeth after the rotary disc is mounted to the encoded chassis.

Abstract: An encoder includes: a base member; a printed board fixed directly or indirectly to the base member; and a cover member fixed to the base member while the printed board is arranged inside the cover member. A first enclosed space and a second enclosed space are formed inside the cover member. The first enclosed space is space in which the printed board is arranged entirely or partially in an enclosed state. The second enclosed space is formed between the first enclosed space and the cover member.

Abstract: An optical encoder includes a scale including a diffraction grating, a light-receiving unit configured to receive light from a light source, and an optical element located between the scale and the light-receiving unit. The optical element includes a plurality of groove portions, which are a periodic structure portion formed periodically in one face of the optical element. The plurality of groove portions is configured to divide signal diffracted light and noise diffracted light into first splitted beams traveling at a predetermined travel angle and second splitted beams traveling at a travel angle greater than the travel angle of the first splitted beams, and make a diffraction efficiency of the first splitted beams of the noise diffracted light lower than a diffraction efficiency of the first splitted beams of the signal diffracted light.

Abstract: A sensing system includes a sensor assembly that is communicably connected to a computer system, such as a server or a cloud computing system. The sensor assembly includes a plurality of sensors that sense a variety of different physical phenomena. The sensor assembly featurizes the raw sensor data and transmits the featurized data to the computer system. Through machine learning, the computer system then trains a classifier to serve as a virtual sensor for an event that is correlated to the data from one or more sensor streams within the featurized sensor data. The virtual sensor can then subscribe to the relevant sensor feeds from the sensor assembly and monitor for subsequent occurrences of the event. Higher order virtual sensors can receive the outputs from lower order virtual sensors to infer nonbinary details about the environment in which the sensor assemblies are located.

Abstract: Embodiments include methods, and computer system, and computer program products for performing test and calibration of integrated sensors on a processor chip. Aspects include: initializing, by a tester program, an on-chip service engine of processor chip, performing and completing, by on-chip service engine, test and calibration of integrated sensors. The method may also include: loading and decoding tester program into an on-chip service engine memory, testing and calibrating each integrated sensor, which may include: selecting an integrated sensor for test and calibration, loading sensor test and calibration patterns and parameters, and sensor test code, and executing the sensor test code to test and calibrate integrated sensors, writing results of the test and calibration to a predetermined location of the on-chip service engine memory, and writing a return code of test and calibration to another predetermined location of on-chip service engine memory, when every integrated sensor is tested and calibrated.

Abstract: A composite sensor includes a first sensor configured to detect a first physical quantity; a second sensor as a sensor of a different type from the first sensor, the second sensor being configured to detect a second physical quantity identical to or correlating with the first physical quantity; and an internal control unit configured to perform failure diagnosis for at least one of the first sensor or the second sensor by comparison between a detection result of the first sensor and a detection result of the second sensor.

Abstract: A flow amount measuring apparatus comprising: a rotating device, configured to rotate while material flows through the rotating device; a rotating bar, connected to the rotating device, configured to rotate corresponding to rotating of the rotating device; a feature acquiring device, configured to detect at least one feature of the rotating bar; and a computing unit, configured to compute a number for full rotations for the rotating bar based on the feature of the rotating bar, and configured to compute a flow amount for the material flows through the rotating device based on the number for full rotations.

Abstract: A fluid sensing device is provided, including a main body and a light sensing unit. The main body includes a casing and a rotary member. A containing chamber is formed in the casing. The rotary member is rotatably disposed in the casing, and the rotary member has at least one transparent portion. A fluid flows into the containing chamber to drive the rotary member rotating around a central axis. The light sensing unit includes a first light transceiver module and a second light transceiver module disposed near the main body in an asymmetrical manner with respect to the central axis to transmit and receive the light passing through the translucent portion.

Abstract: A flowmeter (5) is provided having a housing (28) configured to accept a flow of a process material. A diaphragm (18) is disposed in the housing (28), and is deformable by the flow of the process material. A sensor (48) is configured to detect a deformation in the diaphragm (18), and the flowmeter (5) is configured to measure the flow of the process material.

Abstract: A mass flow control system can be self verified for its accuracy when controlling a flow to a process. The system comprises: a control valve for controlling the flow of fluid through the system as a function of a control signal; a controller for generating the control signal as a function of measured flow of fluid through the system and a targeted flow set point; a pressure sensor for measuring the controlling fluid pressure for use in measuring and verifying the flow rate; and a source of fluid for providing a known volume of fluid for use in verifying the system accuracy anytime between steps of the flow control process.

Abstract: A fluid flow monitoring and management device that includes a fluid flow body having a magnet and a sensor secured to the fluid flow body. The sensor includes a magnetometer in a signal relationship with the magnet.

Abstract: A fluid-flow measuring ball valve includes a housing and a ball having an orifice. The ball is moved between an open position allowing fluid flow through the orifice and a closed position preventing fluid flow. A first ultrasonic transducer is positioned in the housing upstream of the ball. A second ultrasonic transducer is positioned in the housing downstream of the ball and both are aligned to send and receive pulses. First and second acoustic reflectors are aligned with the transducers to transmit and reflect ultrasonic signals in at least one direction through the ball orifice when the ball is in an open position. The controller determines the fluid velocity based on measured speed of sound and calculates the volume of fluid through the orifice based on the measured fluid velocity and cross-sectional area.

Abstract: Methods and apparatus for non-intrusively measuring fluid flow in a conduit, such as a pipe or tubing. The apparatus includes an insulator having self-adhesive inner surface attachable to the conduit, a temperature sensor on the inner surface of the insulator that senses the conduit surface temperature, a heat source on the inner surface of the insulator that imparts heat into the conduit, and a microcontroller connected to the heat source activator and the sensor assembly. In one embodiment, a baseline conduit temperature is measured, and the heat source raises the temperature of the conduit by a predetermined amount. When the conduit reaches target temperature, the heat source is deactivated and the cooling time for the conduit to return to its baseline temperature is measured. Fluid flow rate is determined from the cooling time, the temperature rise within a predetermined time, a temperature drop within a predetermined time, and/or a temperature gradient over time.

Abstract: To obtain a flow meter with which it is possible to facilitate establishing an electrical connection with a conductor exposed in a location through which a gas to be measured passes. A flow meter that is provided with a lead and a circuit component placed on the lead, and that has a package in which part of the lead is molded from a resin, wherein the package is provided with an exposure portion for exposing part of the lead from the resin member, the exposure portion being electrically connected to a conductor that constitutes part of an auxiliary passage.

Abstract: A thermal, flow measuring device comprising a sensor with a metal sensor housing, which includes a cap with a lateral surface and an end face, wherein the sensor housing has at least first and second pin sleeves, which protrude starting from the end face, wherein the sensor housing has a first heater in a first of the two pin sleeves and a temperature sensor in a second of the two pin sleeves for ascertaining a temperature of the medium; wherein the end face of the cap is divided at least into a base area and at least a first planar area inclined relative to the base area by an angle, wherein a second heater is arranged on an inner surface of the cap in the region of this first area.

Abstract: A membrane-based thermal flow sensor device with a substrate comprising a cavity, a membrane spanning said cavity and defining a first membrane side and a second membrane side, and a sensitive structure. The sensitive structure is arranged on the membrane and comprises a heater element and a temperature element. The heater element and the temperature element are spaced apart from one another across a first portion of said the membrane. The membrane is provided with one or more through-openings such as to establish a fluid communication between said first and second membrane sides. Furthermore, said one or more through-openings are arranged outside said first portion of said membrane. The present invention also relates to a method of fabrication and to a method of use of said sensor device.