Abstract: A computer-implemented method includes acquiring a plurality of received signal strength indicators obtained by a target wireless terminal which observes a plurality of wireless signals transmitted from a plurality of transmitters, selecting a set of received signal strength indicators which is a portion of the plurality of received signal strength indicators, acquiring a set of reference received signal strength indicators corresponding to the set of received signal strength indicators, from a database of a plurality of reference received signal strength indicators that serve as a reference for the plurality of received signal strength indicators, and estimating a received signal strength indicator offset of the target wireless terminal, based on the set of received signal strength indicators and the set of reference received signal strength indicators.

Abstract: A LIDAR calibration module can detect a set of return signals from a plurality of fiducial targets for a set of laser scanners of an autonomous vehicle's LIDAR module. The autonomous vehicle can rest on an inclined platform of a rotating turntable to increase range variation in the return signals. Based on the set of return signals, the LIDAR calibration system can generate a set of calibration transforms to adjust a set of intrinsic parameters of the LIDAR module.

Abstract: The invention relates to a method for creating or machining toothings on workpieces in rolling machining engagement, in particular by gear shaping, in which an NC control of the rotary spindle drives of workpiece and tool comprises regulation of the rotation angle position of each particular spindle to setpoints depending on the process parameters associated with the process design underlying the method, wherein data containing information relating to a deflection, caused by the process forces that arise during machining and resulting in profile shape deviations on the workpiece, of the position of the tool flanks of tool and workpiece out of their position intended as per the process design, are used to determine a correction, taking the deflection into account, of the rotation angle position of workpiece spindle and/or tool spindle and thus to modify the setpoints of the regulation.

Abstract: A system including: a sensor module having an inertial measurement unit and attached to an arm of a user. The sensor module is initially calibrated to measure its orientation relative an initial reference pose. To recalibrate the sensor module, the arm of the user is moved to obtain a measurement of an orientation of the arm at a calibration pose relative to the reference pose. The arm is in a horizontal plan in both the calibration pose and the reference pose. Preferably, both arms are straight in the horizontal plane; and the hands meet each other at the calibration pose. The arm module may have twisted around the arm of the user from the time of the initial calibration and the time of recalibration. A twist of the arm module around the arm of the user is computed from the orientation measurement at the reference pose for recalibration.

Abstract: An orientation tracking device includes a memory for storing data including magnetic reference data relating to the direction of a static magnetic field of a magnetic imaging scanner in a selected principle co-ordinate frame and earth gravitational reference data relating to the direction of the gravitational field of the earth in the principle co-ordinate frame. The device also includes an accelerometer, magnetometer and communication module. A processor is adapted for receiving from the magnetometer measured magnetic field vector and from the accelerometer a measured acceleration vector. These vectors are in a co-ordinate frame of the orientation tracking device, within the magnetic imaging scanner in which the orientation tracking device is placed in use.

Abstract: A device for providing a reset signal to one or more sequential logic circuits in an electronic system responsive to a supply voltage condition includes a first voltage detector circuit to generate a first pulse after the supply voltage rises to a first threshold voltage level. The device further includes a second voltage detector circuit to generate a second pulse after the supply voltage falls below a second threshold voltage level. The device additionally includes a latch circuit to store a first value based on the first pulse after the supply voltage rises to the first threshold voltage level, disable the first voltage detector circuit after storing the first value, reset to store a second value based on the second pulse after the supply voltage falls below the second threshold voltage level, and to disable the second voltage detector circuit after the resetting.

Abstract: A method involving a radiation intensity distribution for a target measured using an optical component at a gap from the target, the method including: determining a value of a parameter of interest using the measured radiation intensity distribution and a mathematical model describing the target, the model including an effective medium approximation for roughness of a surface of the optical component or a part thereof.

Abstract: A dual-layer alignment apparatus is disclosed which includes: a fixed frame (40) and, disposed thereon, a first measuring device (50) and a mark plate (41), the mark plate (41) having a fixed-frame mark (20); and a motion stage (60) and, disposed thereon, a reference mark (30), a motion-stage mark (70) and a second measuring device (10). The first measuring device (50) is configured to measure a relative positional relationship between the reference mark (30) and the motion-stage mark (70), the second measuring device (10) is configured to measure a relative positional relationship between the reference mark (30) and the fixed-frame mark (20), from which a final relative positional relationship between the motion-stage mark (70) and the fixed-frame mark (20) is derived, based on which the motion stage (60) is displaced to a target location. A corresponding dual-layer alignment method is also disclosed. In the apparatus, the motion stage (60) is the only movable component.

Abstract: A media system generally includes a memory device that stores an event datastore that stores a plurality of event records, each event record corresponding to a respective event and event metadata describing at least one feature of the event. The media system (a) receives a request to generate an aggregated clip comprised of one or more media segments, where each media segment depicts a respective event; (b) for each event record from at least a subset of the plurality of event records, determines an interest level of the event corresponding to the event record; (c) determines one or more events to depict in the aggregated clip based on the respective interest levels of the one or more events; (d) generates the aggregated clip based on the respective media segments that depict the one or more events; and (e) transmits the aggregated clip to a user device.

Abstract: A method, a system, and a use of the system, for fusing sensor signals with different temporal signal output delays into a fusion data set. Each of at least three different sensor signals describe a measured value of at least three different sensor systems. The signal output delays are unique to the sensor. Each sensor signal includes a timestamp describing a detection time of the measured value. Erroneous measured values of a first sensor system are determined by a comparison with the measured values of other sensor systems. The erroneous values are considered constant at least for the duration between two consecutive comparisons. The erroneous values and/or the measured values are available for a specified time. The erroneous values and/or the measured values of the first sensor system constant are corrected by a correction process, and corrections carried out during the time period are considered when applying additional corrections.

Abstract: Systems and methods are disclosed herein for a robotic manipulator arm deployment and control system. The system comprises at least a vertical mast, a mast deployment system comprising at least two cams, an elbow, an arm wherein the arm is operable to deploy tools, and one or more sensors including a non-contact sensor and a dynamic measurement unit. The cams cause the vertical mast and the arm to remain vertical during deployment into an operating space. The non-contact sensor may be used for measuring range and bearing to objects in the operating space in polar coordinates. The dynamic measurement unit comprises accelerometers and rate sensors and is configured as a six degree of freedom three axis sensor operating in a Cartesian coordinate system. The system further comprises a controller operable to receive the polar and Cartesian coordinates from the sensors and convert them to a Cartesian coordinate system.

Abstract: An electronic device may include a pressure sensor for measuring barometric pressure. Pressure measurements may be calibrated using crowd-sourced pressure data to remove any weather bias or sensor bias associated with the pressure measurements. Altitude of the electronic device may be determined using the calibrated pressure measurement. When it is desired to estimate altitude, the electronic device may transmit a query to a server, which returns a local reference pressure value for the electronic device based on crowd-sourced pressure data from electronic devices in the vicinity of the electronic device making the query. To determine the local reference pressure value, the server may correlate the crowd-sourced pressure data with space, taking into account variations in terrain using digital elevation models to determine location-specific reference pressures. The local reference pressure value for a given electronic device is then determined using crowd-sourced reference pressures at nearby locations.

Abstract: An apparatus for receiving positioning signals comprises an antenna configured to output a plurality of antenna signals and a multipath compensation module for detecting multipath interference, and if multipath interference is detected, selecting one or more of the antenna signals and combining the selected one or more antenna signals to obtain a compensated signal. The antenna is arranged to distinguish between ones of the positioning signals received at different incident angles, and each antenna signal includes ones of the positioning signals received in a predetermined range of incident angles. The multipath compensation module may determine whether multipath interference is present in each antenna signal, and may not select any antenna signals which include interference when selecting the antenna signals to be combined. The gain of each antenna signal may be adjusted before the signals are combined, to maintain the noise power of each antenna signal below a predetermined limit.

Abstract: An apparatus for compensating for a position error of a resolver has a controller which is configured to: receive position information of a rotor of a motor, which is detected by the resolver, to measure a first position error, convert the first position error to a second position error at an electrical angular velocity of 0, and to store the second position error; receive a current electrical angular velocity and the second position error, convert the second position error to a third position error at the current electrical angular velocity, and compensate for the third position error; and perform determination of false position error compensation when a magnitude of a ripple at an electrical angular velocity, which is measured after the third position error has been compensated for, is equal to or greater than a reference magnitude.

Abstract: An ophthalmological device (10) for treating eye tissue (6) with laser pulses (L) comprises a projection optical unit (3) for focused projection of the laser pulses (L), a scanner system (1) for dynamically deflecting the laser pulses (L) and a zoom system (20), which is arranged between the projection optical unit (3) and the scanner system (1) and which is configured to adjust the focused projection of the laser pulses (L) in the projection direction (r) in different zoom settings (z). The ophthalmological device (10) moreover comprises a displacement device (4), which is configured to displace the scanner system (1) depending on the zoom setting (z) of the zoom system (20).

Abstract: The invention relates to a processing system (200) that is arranged to cooperate with an optical-shape-sensing-enabled elongated interventional device (1020, 1120, 1220, 1320, 1420), such as a catheter comprising an optical fiber. A reconstructed shape data providing unit (130) provides reconstructed shape data for the interventional device (1020, 1120, 1220, 1320, 1420). A virtual marking provider unit (140) provides at least one virtual marking (1020A, 1020B, 1101, 1102, 1103, 1201, 1203, 1204, 1301, 1302, 1401) based on the reconstructed shape data, for example as overlay to a x-ray image. The present invention thus turns any OSS-enabled device into a calibrated device, suitable for all kinds of live 3D measurements.

Abstract: Examples of arrays of magnetometers that can be used as or as part of an inertial measurement unit (IMU) are disclosed herein. Various methods for using such arrays in order to obtain highly precise and locationally unique data, which can be used to correct for drift effects, are also disclosed. In certain embodiments, the Jacobian matrix of the magnetic field is computed from the magnetometer measurements. This Jacobian matrix data can be used to generate a magnetic field map for a particular environment and/or to locate position, velocity, and acceleration of the IMU by referencing such a magnetic field map.

Abstract: A method of calibrating a manipulator including a joint portion, a drive unit that generates a driving force for driving the joint portion, and a driving force transmission member that is inserted into a tubular member and transmits the driving force generated from the drive unit to the joint portion includes: an arrangement step of arranging the manipulator in a usable state; a load-measuring step of issuing an operation command based on a predetermined calibrating drive pattern to the drive unit and measuring a load generated in the manipulator at that time; and a control parameter-setting step of setting a main-driving control parameter based on the load measured in the load-measuring step.

Abstract: A thermal displacement correction apparatus for a machine tool first determines the coefficient k in E=a+k|F| where F is a thermal displacement correction amount and E is an adjustment value (first step). Next, in actual processing, a is set if a has not been set yet (second step). After a and the coefficient k are determined in advance, thermal displacement correction unit is enabled and an operation of a machining program is started. The thermal displacement correction amount F is calculated, the adjustment value E is calculated based on E=a+k|F|, a thermal displacement correction amount F? after adjustment (=E×F) is calculated, and F? is sent to the thermal displacement correction unit.

Abstract: Disclosed are a method and an apparatus for compensating thermal displacement of a machine tool, the apparatus including: a compensation quantity calculating unit configured to calculate a compensation quantity by using temperature data and a predetermined compensation parameter; a smoothing filter configured to exponentially smooth the calculated compensation quantity; a scaling unit configured to scale the exponentially smoothed compensation quantity; a time-dispersion compensating unit configured to calculate a final compensation quantity by time-dispersion compensation for the scaled compensation quantity according to a time-dispersion compensating period; and a control unit configured to compensate each axis of equipment according to the final compensation quantity, and adjusts the time-dispersion compensating period of the time-dispersion compensating unit according to an error absolute value representing a difference between an input value and an output value of the time-dispersion compensating unit.

Abstract: A method, a computer program product and a measuring system are provided for operating a triangulation laser scanner to identify surface properties of a workpiece. The scanner has a CMOS sensor chip, an imaging optical unit, and a laser line light source configured to generate a laser line on the workpiece in compliance with a Scheimpflug condition. Data generated on the sensor chip is reduced to an amount of data only including actual lateral positions of image points of the laser line and a quality criterion for each of the image points. The quality criterion is a measure of an intensity distribution along a direction transverse to a local direction of extent of the image points of the laser line on the sensor chip and the reduced amount of data is analyzed with respect to the quality criterion regarding a presence of barcode and/or detection code information and/or texture information.

Abstract: A method corrects errors in position-measuring devices having material measures which are scanned by at least one scanning unit. Correction values are obtained in a calibration performed prior to a measurement operation. The correction values from the calibration are compressed for the measurement operation. The correction values are kept available for a defined number of correction points on the material measure and used during the measurement operation to correct acquired position values.

Abstract: Methods, apparatuses, and systems may provide for using the motion of a vehicle to estimate the orientation of a camera system of a vehicle relative to the vehicle. Image data may be received from a plurality of cameras positioned on the vehicle, and a first constraint set may be determined for the plurality of cameras based on a plurality of feature points in a ground plane proximate to the vehicle. A second constraint set may be determined based on one or more borders of the vehicle. One or more of the cameras may be automatically calibrated based on the first constraint set and the second constraint set.

Abstract: Aspects of the present disclosure provide techniques for determining floors at a geographic location using barometric air pressure sensors in a mobile phone. An exemplary method includes identifying a first height associated with a location based on a client device. The first height indicates an entry level of the client device at the location. Using information regarding an amount of outside air pressure at the location, a pressure sensor in the client device is calibrated. A pressure offset for the location is calculated. The pressure offset identifies a difference between air pressure readings inside the location and the amount of outside air pressure at the location. Using the calibrated pressure sensor, a second height associated with the location is determined based on readings from the calibrated pressure sensor and the pressure offset. The second height indicates a different level at the location that the client device is currently on.

Abstract: A rotation angle detector has a rotation angle sensor and a microcomputer, where the sensor detects a change of a magnetic field of a magnet that rotates with a shaft. The microcomputer has a first corrector for correcting a pre-correction mechanical angle, based on a first correction value that corrects an error due to an assembly process for assembling the magnet and the sensor, and a second corrector for correcting the pre-correction mechanical angle based on a second correction value that corrects an error due to a spill magnetic flux that is generated by a supply of an electric current to a winding wire. In such configuration, the rotation angle detector may correct the error due to the spill magnetic flux, thereby enabling an accurate detection of a mechanical angle.

Abstract: A protective device such as a seat or helmet contains impact attenuating fluid (e.g., CO2, Air or Water) containing cells, sensors and electrically actuated exhaust valves for cushioning impact and decelerating a user (e.g., the contacting body part of the user) after an impact. Accelerometers and a pressure sensor supply signals to a microcontroller, which opens an exhaust valve if accelerations (or pressure) exceed a threshold. Expelling fluid provides a cushioning and damping effect, decelerating the wearer's head. Acceleration data, fluid pressure data and GPS position data may be wirelessly communicated to a monitor computer system.

Abstract: A method and apparatus for correcting errors in a bearing cartridge used in a portable articulated arm coordinate measurement machine (AACMM) is provided. The method includes providing a cartridge having a first bearing and a second bearing arranged in a fixed relationship to define an axis, the cartridge further including an angle measurement device configured to measure a rotation of a portion of the cartridge about the axis. A plurality of angles is measured with the angle measurement device. A first plurality of displacements is determined at a first position along the axis, each of the first plurality of displacements being associated with one of the plurality of angles. Compensation values are determined based at least in part on the plurality of angles and the first plurality of displacements.

Abstract: The Invention is a system and method for adaptively attaching a work piece, especially an imprecise work piece, to a non-adaptive fixture that can be repeatably attached to one or more CNC machines. The Invention allows a work piece to be set up once for multiple machining operations. The Invention avoids the potential for errors and the cost and complexity inherent in adaptive machining and adaptive fixturing.

Abstract: A method for determining the degree service life end of a support cable of an elevator, wherein the support cable is routed over a drive sheave and/or one or more return pulleys and connects a car to a counterweight, includes the steps of: the support cable is subdivided into a plurality of sections; and for each of the sections, a determination is made as to whether the section passes over the drive sheave and/or one or more of the return pulleys during a trip, and if this is the case, a usage level representing the degree of service life use is increased accordingly.

Abstract: Systems, methods, and computer media for calibrating user-mounted devices are provided. An external device capable of providing calibration data to a user-mounted device worn by a user is identified. An identification acknowledgement is received from the external device. A device calibration mode is entered in which calibration data describing the user-mounted device is received by the user-mounted device. The calibration data is based at least in part on sensor data acquired and normalized by the external device. The calibration data is then received. The calibration data includes at least one determined pose or body measurement of the user and a calculated alignment of the user-mounted device relative to the user. The user-mounted device is calibrated using the received calibration data.

Abstract: In a position detection device, an amplitude modulation is executed for AC excitation signals Sc using modulation wave signals. Differential amplifiers execute a voltage conversion of the modulated wave signal Sin, Cos to digital data SIN, COS and transmit them to a microcomputer. The microcomputer multiplies the modulated wave signals SIN, COS with parameters cos ?, sin ?, and executes a subtraction of the multiplied value to obtain an error-correlation value ?. An angle calculations section in the microcomputer receives a detected value ?c obtained by multiplying the error-correlation value ? with a binary detection signal Rd. The binary detection signal Rd corresponds to a positive sign or a negative sign of the signal Sc. It is adjusted that the sampling number of samples of the signal Rd corresponding to a positive value is equal to that corresponding to a negative value during one period of the signal Sc.

Abstract: A fall detection device includes a fall detection circuit to detect a fall by a user and a verification circuit to verify the initial indication of a fall from the fall detection circuit. The device is sized to be worn by the user and includes an orientation sensor to track the orientation of the device relative to one or more axes. The device averages the average inclination values for one or more axes for time periods before, during, and after the fall. A fall is determined to have occurred when differences in the average values of the inclination values exceed threshold values.

Abstract: A head mounted device provides an immersive virtual or augmented reality experience for viewing data and enabling collaboration among multiple users. Rendering images in a virtual or augmented reality system may include capturing an image and spatial data with a body mounted camera and sensor array, receiving an input indicating a first anchor surface, calculating parameters with respect to the body mounted camera and displaying a virtual object such that the virtual object appears anchored to the selected first anchor surface. Further operations may include receiving a second input indicating a second anchor surface within the captured image that is different from the first anchor surface, calculating parameters with respect to the second anchor surface and displaying the virtual object such that the virtual object appears anchored to the selected second anchor surface and moved from the first anchor surface.

Abstract: A method for determining the location of a touch input in an application window on an interactive surface of a display device is described. The application window comprises a canvas configured to display at least a portion of a user interface. The method comprises the following steps. A first location of the touch input associated with a first coordinate space is determined. The first coordinate space is associated with the interactive surface. The touch input is used to emulate a mouse event. A second location of the touch input associated with a second coordinate space is determined in response to the emulated mouse event. The second coordinate space is associated with the user interface. At least one offset parameter is calculated, correlating the first coordinate space with the second coordinate space.

Abstract: The robotic work object cell calibration system includes a work object. The work object emits a pair of beam-projecting lasers acting as a crosshair, intersecting at a tool contact point (TCP). The work object emits four plane-projecting lasers are used to adjust the yaw, pitch, and roll of the robot tool relative to the tool contact point (TCP). The robotic work object cell calibration system provides a calibration system which is simpler, which involves a lower investment cost, which entails lower operating costs than the prior art, and can be used for different robot tools on a shop floor without having to perform a recalibration for each robot tool.

Abstract: Methods, systems, and apparatus for quantifying an individual's frailty level based on inertial sensor data collected from the individual. The quantified frailty level may correspond to and approximate clinical metrics of frailty, such as the Fried frailty index. A linear regression model may be used to output the quantitative frailty value based on input parameters from the inertial sensor data. The linear regression model may be initially generated from the clinically-measured frailty index values of individuals and inertial sensor data collected from them. The inertial sensor data may be collected during, for example, a timed up and go (TUG) test. Two logistic regression models may be used to output a frailty class based on input parameters from the inertial sensor data. A first logistic regression model may distinguish between robust and frail individuals. A second logistic regression model may distinguish between robust and pre-frail individuals.

Abstract: Method and apparatus are provided to determine directional calibration parameters of an object. A method includes: disposing a tracking marker to the object, disposing the object on a calibration tool, rotating the object around its set linear axis while keeping the set linear direction unchanged, determining at least two three-dimensional rotation matrices of the tracking marker via a position tracking apparatus, and using the three-dimensional rotation matrices to determine the directional calibration parameters with the formula of two-point position relationship or rectilinear direction rotation relationship in the three-dimensional space. The action direction of the object is determined based on the determined directional calibration parameters and the current three-dimensional rotation matrix of the tracking marker.

Abstract: A motor drive device inputs two detection signals from a rotation position sensor thereby to detect a rotation position, and controls a voltage to be applied to a motor according to the detected rotation position. The motor drive device has a control unit for outputting a first voltage in a first state in which the square sum of sampling values sampled from the two detection signals is a predetermined value, and outputting a second voltage in a second state in which the square sum is not the predetermined value.

Abstract: According to one embodiment, target tracking device includes track calculator and correction unit. Track calculator calculates a track of a target based on angular measurement of the target measured by a passive sensor. Correction unit sends correction data to the track calculator. Correction unit calculates correction data based on state vector of target input from an external device. Track calculator calculates track for each of a plurality of motion models based on angular measurement and correction data. Track calculator calculates the track of the target based on the track for each of the motion models. Track calculator calculates the track of the target by weighted sum of all tracks for the motion models.

Abstract: Methods and apparatus are provided for calibrating a motion tracking system (100) including a plurality of orientation sensors (102a-103h) attached to a plurality of body segments (104a-105h) of a user (9101). The methods and apparatus receive a first set of orientation signals from a first set of the orientation sensors (102a-102g). The first set of orientation signals associated with a first pair of the body segments (102a, 102f) matching a first set of predetermined positions. The skeleton dimension of the user and the mapping between the body segments and the corresponding attached sensors (102a-103h) are calibrated based on the first set of orientation signals. A first template including the first set of predetermined positions may be used, and the first pair of the body segments (104a, 104f) include the feet of the user.

Abstract: According to one embodiment, target tracking device includes passive processor, active processor, fusion unit and correction unit. Passive processor calculates passive track of target based on passive measurement of target angle measured by passive sensor. Active processor calculates active track of target based on active measurement of target distance and angle measured by active sensor. Fusion unit combines passive track and active track to output combined track. Correction unit calculates correction data based on combined track. Passive processor calculates track of the target for motion models based on passive measurement and correction data and calculates passive track by weighted sum of all tracks for motion models.

Abstract: A storage medium has stored therein a game program that in game processing, controls a correlation between a player object and a non-player object through a virtual surface that is set on the basis of a marker for generating a superimposed image by combining a real world image and a virtual world image. The game program causes a computer of an apparatus, which includes a display device for providing the superimposed image to a user and an imaging section for taking an image of the marker, to operate as predetermined means.

Abstract: A geodetic surveying system, comprising: a first measurement unit and a second measurement unit. Each of the first and the second measurement unit is configured to perform a measurement for acquiring positioning data of the respective measurement unit. The system further comprises a first inclinometer for acquiring inclination data of the first inclinometer which represent a vertical inclination measured at the first measurement unit; and a second inclinometer for acquiring inclination data of the second inclinometer, which represent a vertical inclination measured at the second measuring unit. The geodetic surveying system is configured to determine a relative orientation angle between the first inclinometer and the second inclinometer in a horizontal plane relative to a vertical adjustment of the geodetic surveying system, depending on the inclination data of the first inclinometer and the second inclinometer.

Abstract: A system and a method determine a steering angle of a steering column of a vehicle as a sum of a shifted steering angle and an offset. The steering angle is updated by adjusting the offset in response to detecting incoherence between the steering angle and a lateral vehicle dynamic.

Abstract: The robotic work object cell calibration method includes a work object or emitter. Initially, placing the work object is placed in a selected position on a fixture or work piece on the shop floor. The work object emits a pair of beam-projecting lasers which intersect at a tool contact point and act as a crosshair. The robot tool is manipulated into the tool contact point. The work object emits four plane-projecting lasers which are used to adjust the roll, yaw, and pitch of the robot tool relative to the tool contact point. The robotic work object cell calibration method of the present invention increases the accuracy of the off-line programming and decreases robot teaching time.

Abstract: The present invention relates to a model based positioning system that includes a positioning device having at least one transmitter configured to be in a tracking environment, e.g. inserted into a body, a receiver having a plurality of receiver elements arranged outside the tracking environment, a control unit configured to measure amplitude and/or phase information of a signal transmitted from the at least one transmitter and received at each receiving element, and a memory unit M for storing a model for each receiving element. The control unit is also configured to estimate the position P of the positioning device by comparing the model for each receiving element with the measured received signal for each receiving element.

Abstract: A sensor information acquisition section acquires angular velocity information (GX, GY, GZ) around three axes acquired by three angular velocity sensors, and acceleration information (AX, AY, AZ) in three axial directions acquired by three acceleration sensors. A posture information calculation section calculates a posture angle and position coordinates in a virtual three-dimensional space based on the angular velocity information (GX, GY, GZ) and the acceleration information (AX, AY, AZ). The posture information calculation section calculates a fixed coordinate system velocity vector based on an inertial coordinate system acceleration vector (A) obtained from the acceleration information (AX, AY, AZ), and calculates position coordinates in a virtual three-dimensional space corresponding to the fixed coordinate system velocity vector.

Abstract: A method for calibrating measurement instruments of an optronic system in motion, with positions P1, P2, . . . , Pi, . . . , comprises: a device for acquiring images of a scene comprising a fixed object G0; and means for tracking the fixed object G0 during the acquisition of these images; means for obtaining the positions P1, P2, . . . ; at least one instrument for measuring the distance and/or an instrument for measuring angles of orientation and/or of attitude between this measurement instrument and the fixed object G0, according to a line of sight LoS. It comprises the following steps: acquisition at instants t1, t2, . . . of at least two images, each image being acquired on the basis of different positions P1, P2, . . . of the system, the fixed object G0 being sighted in each image, but its position being unknown; acquisition at the instants t?1, t?2, . . . of measurements of distance and/or of angle; synchronization of the measurements of distance and/or of angle with the positions P1, P2, . . .

Abstract: Embodiments of the present invention include an occupancy sensing unit configured to monitor an environment illuminated by a lighting fixture. An inventive occupancy sensing unit may include an occupancy sensor to detect radiation indicative of at least one occupancy event in the environment illuminated by the lighting fixture according to sensing parameters. The occupancy sensor can be coupled to a memory that logs sensor data, which represent the occupancy events, provided by the occupancy sensor. A processor coupled to the memory performs an analysis of the sensor data logged in the memory and adjusts the sensing parameters of the occupancy sensor based on the analysis.

Abstract: Systems and methods to calculate ballistic solutions for use with a projectile launching device are disclosed herein. In some embodiments, the system includes a telescopic sight assembly for viewing a target, wherein the telescopic sight assembly comprises at least one display device for displaying information, a processor, a memory, and a data input device, wherein the system for use with a projectile launching device to calculate ballistic solutions is configured to perform passive target ranging. In some embodiments, the system includes a telescopic sight assembly for viewing a target, at least one display device for displaying information to a user within the field-of-view of the telescopic sight assembly, a processor configured to receive user input data associated with one or more actual projectile impact locations as observed by the user, a memory, and a data input device, wherein at least one display device displays a calculated projectile impact location.