Abstract: A measuring device for measuring the speed of a vehicle running on wheels has a first sensor and a second sensor. The two sensors are arranged on the same wheel of a vehicle and rotate with this wheel. Both sensors are arranged in such a way that they measure forces which are each perpendicular to the axis of the wheel and at an angle to one another, and act on the same point. An evaluation device is provided to which the measured values of the two sensors are fed, with the evaluation device obtaining the acceleration of the vehicle in the direction of travel therefrom, and calculating the current vehicle speed from it.

Abstract: A method of monitoring human activity includes monitoring accelerations using an inertial sensor disposed at one of a plurality of locations on a human body, wherein at least one of the plurality of locations is not a foot location. A plurality of steps are counted based on the accelerations. A gait characteristic of the plurality of steps is determined. The characteristic is used to determine a stride length. At least one of a distance traveled and a speed of travel are determined based on the stride length.

Abstract: To provide an attitude-angle detecting apparatus, which detects an attitude angle of a mobile object during movement with good accuracy by correcting an output value from an acceleration sensor, and to provide a method for the same. It is characterized in that it comprises an acceleration sensor 2 for measuring an acceleration being applied to a mobile object 7, a yaw-rate sensor 3 for measuring a yaw rate of the mobile object 7, a speed sensor 4 for measuring a speed of the mobile object 7, a mobile-component acceleration calculating means 5 for calculating an actual acceleration from the speed, calculating a centrifugal force from the yaw rate and the speed and calculating a mobile-component acceleration, a resultant force of the actual speed and the centrifugal force, and an attitude-angle calculating means 6 for calculating an attitude angle from a gravitational acceleration, which is obtainable by correcting the acceleration with the mobile-component acceleration.

Abstract: A method for determining the total temperature of the air stream surrounding an aircraft, including the following operations; measuring a parameter of static temperature, measuring a parameter of total temperature, determining a value of speed of the air stream, determining a total temperature computed from the parameters of measured static temperature and measured total temperature as a function of the speed of the air stream.

Abstract: A method for measuring wind velocity including using a Fourier Transform (FT) and a correlation between a wave vector number and temporal frequency of a wind to calculate wind velocity. Contour line deviations in a series of images of a far object are evaluated by performing a spatial discrete fourier transform (DFT) on deviations within each image, and subsequently a time discrete fourier transform (DFT) on the Fourier coefficients obtained by the spatial DFT, to get the frequency dependence of each Fourier coefficient.

Abstract: A method and system, according to one embodiment of the present invention, provide a means to accurately determine the velocity of a vehicle. An initial estimation of the velocity of the vehicle is calculated based on rates of rotation of a plurality of wheels on the vehicles. If any of the wheels on the vehicle are in a brake control, or traction control, situation, the initial estimation is modified based on an acceleration of the vehicle to generate a modified estimation of the velocity of the vehicle.

Abstract: A user in locomotion during an outing may support at least one device to automatically measure amounts of time taken by the user to complete one or more distance intervals. The user device may automatically identify occasions on which a user completes respective distance intervals. The user device may display at least one of an average pace of the user, an average speed of the user, and a projected time to complete a current distance interval based on monitored performance, each measured since the most recently completed distance interval. The device may also monitor a distance traveled by the user. The user device may determine a remaining distance to be traveled to complete one of the specified goal distances for the outing and a calculated fraction of the specified goal distance for the outing. Data relating to the calculations may be received by a user device input.

Abstract: An example geolocation system for mounting on a mammal incorporates simple sensing sleeves on the calves of the body support members, combined with an accelerometer based gravity direction and force sensing at the center of mass of the body. The example system is connected to a digital processing unit and a battery power supply to integrate the sensing to determine kinetic and potential energy of the body locomotion over time in a method that integrates out the aperiodic motion of the body about the center of mass, and uses the residual motion to measure the center of mass locomotion from a known point.

Abstract: Method for determining the location and/or speed of at least one swimmer, swimming through water, comprising: —sending acoustic signals through the water, using stationary acoustic transmitter means (AT) having a stationary position, or using mobile acoustic transmitter means (AT?) being carried by said swimmer (S); —receiving the acoustic signals using mobile acoustic receiver means (AR) being carried by said swimmer (S), or using stationary acoustic receiver means (AR?) respectively; —determining the time difference between the time of sending and the time of receiving each acoustic signal; —determining a location and/or speed of said swimmer (S) with respect to said stationary transmitter means (AT) or stationary receiver means (AR?), using said time differences and a predetermined propagation speed of the acoustic signal through the water.

Abstract: There are disclosed systems and methods for measuring the bowing parameters and the bowed string dynamics of a player playing a bowed string instrument. A system for measuring the bowing parameters and the bowed string dynamics may comprise a computer, a bow system and a base component. The bow system may comprise a force sensing mechanism and a bow board. The bow board may comprise an acceleration and angular velocity sensing mechanism, a position and speed sensing mechanism, a data communication module, and a power module. The base component may comprise an acceleration and angular velocity sensing mechanism, a position and speed sensing mechanism, a data communication module, and a power module.

Abstract: Sensing vehicle speed is disclosed. A speed sensor is self powered. The speed sensor measures a speed data of multiple vehicles with one Doppler pulse. A sample is taken of speed sensor data from the speed sensor. The sample of speed sensor data is processed to calculate speed. The calculated speed is wirelessly transmitted to a server.

Abstract: A position sensing apparatus and method, motion control system, and integrated circuit are provided that include a plurality of sensors and a tracking processor. The plurality of sensors includes a linear array of sensors that sense a plurality of features of an object. A spacing between two of the plurality of sensors is substantially smaller than a spacing between two of the plurality of features. The tracking processor samples signals from the sensors, compares the samples to previous samples and calculates a position of the object. The plurality of sensors may include a second linear array of sensors. Centers of the sensors of the second linear array may be offset from centers of the sensors of the first linear array along a longitudinal axis of the plurality of sensors.

Abstract: A blended sensor system and method including a velocity sensor (52) operably connected to monitor velocity of a payload (58) and generate a velocity signal (62); a position sensor (54) operably connected to monitor position of the payload (58) and generate a position signal (64); and a summing node (56) responsive to the velocity signal (62) and the position signal (64) to generate a blended signal (66). The velocity signal (62) dominates the blended signal (66) for high system frequencies, the position signal (64) dominates the blended signal (66) for low system frequencies, and a combination of the velocity signal (62) and the position signal (64) dominates the blended signal (66) for intermediate system frequencies.

Abstract: The present invention enables image data with good S/N and high resolution to be obtained reliably in a short reading time. A CCD 102 is formed by arranging line sensors, in which detecting elements having a time integration effect are arranged in a direction orthogonal to a relative movement direction in which the CCD 102 moves relative to an original, in a plurality of columns in the relative movement direction. A signal processing unit 107 detects pixel components on the basis of a model for separating first pixel values obtained in a processing unit time by the CCD 102 into a plurality of the pixel components corresponding to detection positions of the object being detected, and generates second pixel values corresponding to the detection positions of the object being detected on the basis of the detected pixel components. The present invention is applicable to scanners.

Abstract: A method and system for tracking physical metrics in a social commerce system is disclosed. According to one embodiment, the physical metric tracking system comprises a data registering unit that receives activity data by a user, a data processing unit that validates the activity data using a plurality of data validating algorithms and converts the validated data into a convertible value, and a storage that stores the activity data and the convertible value. The convertible value is traded with goods and services, or any other benefits in the social commerce system.

Abstract: An activity monitor, comprises housing for attachment to a person; at least one accelerometer disposed within the housing; and a processor disposed within the housing, for processing signals from the accelerometer to assess activity of the person. A method assesses activity of a person, including: sensing acceleration at a first location on the person; processing the acceleration, over time, to assess activity of the person; and wirelessly communicating information indicative of the activity to a second location.

Abstract: A mobile terminal device, which is capable of suppressing lowering of a resultant speed when speed data cannot be correctly measured by a rake receiver due to control of AFC or the like, is provided. A comparing section 16 reads a current resultant speed out of a resultant speed storage section 18, and compares the speed data measured by the rake receiver 13 with the current resultant speed. When the speed data is faster than the current resultant speed, the filter section 17 stores the speed data as the resultant speed in the resultant speed storage section 18 as is without performing any filtering process on the speed data measured by the rake receiver 13. When the speed data is slower than the current resultant speed, the filter section 17 averages the speed data measured by the rake receiver 13 and the current resultant speed, and store the averaged speed data as the resultant speed in the resultant speed storage section 18.

Abstract: The measurement method of the displacement speed of a moving element with respect to a fixed element is performed by means of an optic measuring device comprising a first reference sensor and a plurality of distinct second measurement sensors substantially aligned along the axis of movement of the moving element. The measurement method comprises determination of estimated speeds by correlation of the signals supplied by the reference sensor and each of the measurement sensors, and calculation of a mean speed of said estimated speeds.

Abstract: An apparatus for determining roll angle of a motorcycle (1) as when taking a curve or bend in a road. The apparatus includes a first gyro sensor (11) that provides a roll rate signal, a second gyro sensor (12) that provides a yaw rate signal, and a velocity sensor (36). The apparatus is configured to integrate the roll rate signal to obtain a first intermediate roll angle value and to determine a second intermediate roll angle value from the yaw rate and the vehicle velocity. The apparatus combines the two intermediate roll angle values into an output value for the roll angle that can be used by a servo (50) to adjust the orientation of the headlamp so that the beam pattern remains leveled with the horizon when the motorcycle (1) rolls when taking a curve.

Abstract: The embodiment of the invention is related to a processor configured for determining a predetermined number of frequency estimates, determining an average of the frequency estimates for obtaining an averaged frequency offset, unbiasing received samples and/or impulse response values using the averaged frequency offset, calculating Doppler frequency estimates using the unbiased received samples and/or impulse response values and calculating selected second order statistics of the Doppler frequency estimates over a predetermined period and calculating a speed of a communication system terminal using the Doppler frequency.

Abstract: As an embodiment of the present invention, in a navigation system using an acceleration sensor, when position information cannot be obtained from a GPS processing section, a velocity detecting unit performs an operation using detected acceleration ?G, a measurement time mt, a velocity V0 at a time t0, gravity acceleration g and an amount of height change Dh, according to Expression (11). By using the relationship among a gravity acceleration component gf, the gravity acceleration g, the amount of height change Dh and distance Dm shown in Expression (4), the gravity acceleration component gf can be offset by the amount of height change Dh. Therefore, velocity V can be calculated with high accuracy without receiving the effect of the gravity acceleration component gf.

Abstract: A navigation device is disclosed including a processor arranged to receive position information from a positioning device. The processor is also arranged to receive movement information from a movement detector and determine whether said device is standing still using said movement information. In at least one embodiment, if a standstill of the device is determined, the processor calculates an average position over time using information on consecutive positions received from the positioning system during a time period in which the device is standing still. The average position is used for navigation purposes, such as giving instructions to the user. By averaging during a standstill, a more accurate position can be determined which can be used to give better instructions.

Abstract: A method of calibrating once-around and harmonic errors of encoded nips is provided. An encoder with an index pulse is used to measure the velocity and rotation of the driven wheel or idler. The geometry of the drive train and wheel and idler is chosen so that their once around and harmonic frequencies are unique such that no other drive errors will generate these frequencies. The method includes running the idler or wheel at substantially constant velocity for N revolutions. Each index triggers the collection of velocity data, which is averaged for N revolutions. This process detects drive train motion errors that are periodic with respect to the timing of the index pulse (i.e., once per revolution of the wheel or idler). Once the velocity errors have been measured, corrections are made. This method may be incorporated in xerographic machines as part of a setup or calibration procedure.

Abstract: A method of estimating a mass of a vehicle. If a yaw rate is smaller than a reference value, a straight direction model algorithm is applied to obtain an estimated mass. If a measured speed and a measured steering angle are larger than reference values, a lateral direction model algorithm is applied to obtain another estimated mass. If a measured vertical acceleration is larger than a reference value, a vertical direction model algorithm is applied to obtain yet another estimated mass. If each of the estimated masses is in an allowable range, and is constant for a given time period, the masses are applied to a recursive least square method, thereby estimating the mass of the vehicle.

Abstract: A vehicular tilt-angle detecting apparatus includes a steering-angle sensor, a vehicle speed sensor, a lateral-G sensor, a turning-radius calculation unit, a base tilt-angle calculation unit, a transient tilt-angle calculation unit, and a transient tilt angle calculation unit. The turning-radius calculation unit determines a turning radius corresponding to a steering angle based on a predetermined relationship between a steering angle and a turning radius. The base tilt-angle calculation unit calculates a current instantaneous tilt angle of a vehicle body during short-term steady-state turning based on the turning radius and the vehicle speed. The transient tilt-angle calculation unit corrects the initial calculated tilt angle of the vehicle body based on a transient turning radius when a variation of the steering angle is equal to or greater than a predetermined value.

Abstract: A shoe is improved by including: at least one accelerometer for generating acceleration signals and a processor configured to process the acceleration signals to determine one or both of speed and distance traveled of a person wearing the shoe. A shoe and a garment are provided with a wireless transmitter, to provide information about the shoe/garment or a person wearing same.

Abstract: A sensor for detecting the position and speed of a part mobile along at least one measurement direction includes an estimator (38) adapted to provide estimation of position and speed based on a displacement model of the target during a period of observation Tobs, the model relating the position of the target at a time t included in the period of observation Tobs, at least to the position and the speed to be estimated.

Abstract: In a distance/speed meter, first and second semiconductor lasers emit parallel laser light beams to a measurement target. A first laser driver drives the first semiconductor laser such that the oscillation interval in which at least the oscillation wavelength monotonically increases repeatedly exists. A second laser driver drives the second semiconductor laser such that the oscillation wavelength increases/decreases inversely to the oscillation wavelength of the first semiconductor laser. First and second light-receiving devices convert optical outputs from the first and second semiconductor lasers into electrical signals. A counting unit counts the numbers of interference waveforms generated by the first and second laser light beams and return light beams of the first and second laser light beams.

Abstract: A multiple-point smoothing method for motor-speed estimation. The output of an encoder is over-sampled to obtain over-sampled position differences according to an over-sampling factor M. The over-sampled position differences are averaged to obtain an initial speed estimation. The initial speed estimation is low-pass filtered to obtain a final speed estimation. The final speed estimation is sent to a speed controller to control the speed of a motor. Alternatively, in a composite multiple-point smoothing scheme, the initial speed estimations based on two over-sampling factors are obtained. One of the initial speed estimations is selected based on an average of the two estimations, and the selected initial speed estimation is further processed to obtain a final speed estimation. The method of the present invention can reduce ripple in estimated speed of motor when the motor is operated at high speed.

Abstract: A system and method of hierarchical monitoring for subordinate assessment is described. Generally, the system receives remotely sensed data about a user's physiology and contextual state, and extracts features that are related to the workload currently being experienced by a single subordinate and/or group of subordinates. The system builds workload indices based on levels of these features. The system uses statistical process control techniques in conjunction with the workload indices to identify suboptimal user states. Information regarding a particular subordinate or the group of subordinates may be presented in a variety of different ways. As a result, a superior can easily determine the condition of the one or more subordinates and make task adjustments to influence workload levels.

Abstract: A device and method for estimating an adaptive pace depending on a user with a different pace. An adaptive pace estimation device includes a GPS receiver for receiving position information from a GPS satellite; an acceleration sensor for measuring vibrations due to walking to output an acceleration value; a memory for storing an instruction data set with a walking pattern representative value updated in accordance with an instruction corresponding to at least one walking pattern group; and an instruction data generator for calculating a mean value of input walking pattern data and updating a value approximate to the mean value of the input walking pattern data and the walking pattern representative value as a walking pattern representative value.

Abstract: A sensor unit to detect a stillness event, the sensor unit including a gyroscope attached to a monitored person, a micro-controller communicatively coupled to the gyroscope, and a memory communicatively coupled to receive and to store the angular velocity data with a correlated time. The gyroscope senses an angular velocity of the monitored person and outputs angular velocity data based on the sensed angular velocity. The micro-controller receives the angular velocity data and recognizes a quiescence-pattern data in the angular velocity data.

Abstract: A user in locomotion on foot during an outing may identify a grade of a surface with at least one device supported by the user. A performance parameter of the user may be determined with the device based upon the grade of the surface, which may be based upon a measured physiological parameter of the user. An average foot contact time and an average pace of a user during a first outing may be identified and a relationship between them may be determined. No other average foot contact times or average paces identified during a different outing may be used to define the relationship. A single user-specific calibration contestant may define a relationship between foot contact times of a user and corresponding paces of the user, wherein no other user-specific calibration constants are used to define the relationship.

Abstract: A device supported by a user while the user is in locomotion on foot during an outing may monitor a performance parameter of the user. The performance parameter may comprise a pace and/or a speed of the user. Prior to the outing, the device may be configured to specify a first interval and second interval, corresponding to a first and second performance zone, respectively, for the outing. Each performance zone may be different from one another and each zone may comprise one of a zone of paces and a zone of speeds. During the first interval, an action may be taken with the device in response to determining that the monitored performance parameter has fallen outside of the first performance zone. During the second interval, an action may be taken with the device in response to determining that the monitored performance parameter has fallen outside the second performance zone.

Abstract: Systems and methods for measuring the speed and/or direction of a target such as a vehicle in a field of view. The speed of a vehicle is measured using distance measurements, phase measurements, or Doppler shift measurements using a single transducer side fire configured sensor. The speed of a vehicle can be measured using laterally spaced transducers in a side fire or off angle configuration and using a single transducer sensor in a forward fire configuration.

Abstract: Enhanced single-sensor position detection, in which a position of an object is determined. In some implementations, a first signal is emitted from a first emitter, and a second signal is emitted from a second emitter. A plane is monitored using a sensor, and the first signal and the second signal are received at the sensor after each of the first signal and the second signal reflect off of the object. A response signal is generated based on the first and second signals, and the response signal is processed to determine the position of the object in the plane.

Abstract: In a fall detection device, when a first composite vector value of a first acceleration component obtained from a three-axial acceleration sensor is greater than a rotating fall determining value, or smaller than a free fall determining value, a possibility of a fall is determined. When a second composite vector value of a second acceleration component obtained after a determining time interval is greater than the rotating fall determining value, and an angular difference of each testing surface is greater than an angular difference determining value, it is determined to be in the middle of a fall. Further, when a third composite vector value of a third acceleration component obtained one more time is smaller than the free fall determining value, it is determined to be in the middle of a fall.

Abstract: An apparatus for measuring energy usage. The apparatus can include an amplifier having a plurality of gain stages and the amplifier can be for receiving an input signal. The apparatus can also include an analog-to-digital converter that is coupled to the amplifier. Furthermore, the apparatus can include a scaling adjustment module that is coupled to the analog-to-digital converter. Additionally, the apparatus can include a gain control module coupled to the analog-to-digital converter.

Abstract: An apparatus is configured for inclusion in an arrow. In one embodiment, the apparatus includes a sensor configured to provide data concerning one or more flight characteristics of the arrow in flight and a communication link coupled to the sensor, the communication link configured to communicate the data to a device external to the arrow.

Abstract: A device is suitable as equipment in an aircraft moving in an air mass relative to a terrestrial frame of reference, in order to estimate at least one characteristic of a displacement of this air mass relative to this frame of reference. This device comprises first means for receiving an element of information about the speed of the aircraft in the frame of reference, second means for receiving at least one element of information (TAS) about the speed of the aircraft in the air, and third means for obtaining the said characteristic from the said speed information elements. The second means are capable of receiving an element of information about the angle of attack (?) of the aircraft in the air, and the third means are capable of determining the said characteristic on the basis in particular of the angle of attack information element (?).

Abstract: A method for monitoring tire pressure variation of automobile tires and a system of implementing thereof, which measures and obtains rotation speeds of individual automobile tires as reference values, and compares these reference values with the current rotation speeds of individual automobile tires to inspect tire pressure variation of automobile tires and provide basis for determining fault tire locations. Compared with the conventional art, it has advantages to determine fault locations accurately, and deal with the problem of misreporting tire locations due to the influence in determining fault locations by the difference of specifications of tires, pressure or wearing degrees. In addition, the method and system can raise an alarm when two tires arranged axially or diagonally are in case of equal underpressure, and record data relating to the alarm signal and rotation speeds as the basis for distinguishing liabilities in case of accidents.

Abstract: The present invention is used for monitoring a land vehicle speed relative to a speed limit. An electronic transmit and receiver apparatus, a position location apparatus and a date and time apparatus may be positioned in the land vehicle and may be in communication with a speed and speed limit computation device. The speed and speed limit computation device may have an output to an alert display device and an output device to identify over speed limit conditions.

Abstract: A device for generating microwave signals, e.g., for use in a distance and speed sensor in a motor vehicle, is provided. To this end, two laser sources are operated, whose emitted radiations are distinguished from each other by a set difference in wavelength. The two lasers are arranged in such a manner that the emitted laser beams overlap spatially. A photodiode is arranged in this region in which the two laser beams interfere. From the superimposition product of the two laser beams, this photodiode generates an electrical output signal that has the differential frequency of the two superimposed laser beams. In this context, the frequency difference of the two lasers is selected so that the frequency of the generated microwave radiation lies in the range of the radar beam to be generated.

Abstract: Robust methods are developed to provide bounds and probability distributions for the locations of objects as well as for associated variables that affect the accuracy of the location such as the positions of stations, the measurements, and errors in the speed of signal propagation. Realistic prior probability distributions of pertinent variables are permitted for the locations of stations, the speed of signal propagation, and errors in measurements. Bounds and probability distributions can be obtained without making any assumption of linearity. The sequential methods used for location are applicable in other applications in which a function of the probability distribution is desired for variables that are related to measurements.

Abstract: A shoe-based weight measuring system, comprising: a shoe; one or more weight sensitive detectors constructed and arranged with the shoe to sense weight of a person wearing the shoe and walking or standing; a processor for processing signals from the detectors to determine a weight of the person; a remote receiver; and a communications port for wirelessly communicating the weight to the remote receiver. An on demand weight system, comprising a weight detector coupled with a shoe for sensing weight of a person on the detector, a processor processing information from the detector for determining applied weight, a personal data display, and a communications port for wirelessly relaying the applied weight to the data display.

Abstract: A speed sensor for a marine vessel includes a correction circuit to correct any sensor non-linearities so that the sensor produces an output with a pulse stream having a constant pulse rate, and reduces the pulse-to-pulse variations of the pulse stream. The circuit can standardize the pulse stream to have a frequency corresponding to a standard rate.

Abstract: A method and system, according to one embodiment of the present invention, provide a means to accurately determine the velocity of a vehicle. An initial estimation of the velocity of the vehicle is calculated based on rates of rotation of a plurality of wheels on the vehicles. If any of the wheels on the vehicle are in a brake control, or traction control, situation, the initial estimation is modified based on an acceleration of the vehicle to generate a modified estimation of the velocity of the vehicle.

Abstract: An electronic apparatus for measuring water speed and water temperature then periodically transmitting said data during controlled depth fishing wherein an underwater probe is secured to and insulated conductive downrigger cable and gathers and relays data though the cable to a remote receiver/display unit disposed on the watercraft.

Abstract: For determination of dynamic axle and/or wheel loads of a wheel vehicle (20), wherein for said wheel vehicle (20), at least two linear transversally oriented with respect to each other accelerations and three rotation rates of a rotation movement around the coordinate axis of the vehicle (20) or of the component of the coordinate axis are respectively measured by a measuring device (1). The three coordinate axes extend transversally with respect to each other and at least one axle load and/or wheel load of the wheel vehicle (20) are determined by means of at least two linear accelerations and three rotation rates with the aid of evaluation device (9).

Abstract: A method and a device for the exchange and the processing in common of object data between sensors and a processing unit, position data and/or speed data and/or additional object attributes (size, identification, markings) of sensor objects and fusion objects being transmitted and processed between or among the various component parts of the device.