Abstract: A street light monitoring system has a small fraction of the street lights in the system being anchor nodes that are configured to detect and store their own actual fixed position, thereby acting as reference points. Further, the other street lights are referred to as blind nodes and do not have their actual fixed position but can derive their position using the coordinates of the anchor nodes and estimating their distance to them. The distance estimation for any blind node can be performed using a received signal strength indication (RSSI) measured at the respective blind node for small distances of up to a threshold value and a link quantization technique takes advantage of the typical placement of the street lights. Inferred distances between the street lights can be assigned to pre-determined categories of distances for a coarse estimation and further position adjustment to a closest possible “real” position.

Abstract: A mobile terminal which makes it possible to automatically calculate a step length of a user with accuracy. A step count-acquiring section acquires a step count of the user of a mobile terminal. A position calculating section calculates a position of the mobile terminal. A center position-calculating section calculates a center position of a plurality of positions calculated by the position calculating section. A covered distance-calculating section calculates a distance covered by the mobile terminal based on a plurality of the center positions calculated by the center position-calculating section. A step length-calculating section calculates the step length based on the step count acquired by the step count-acquiring section and the covered distance calculated by the covered distance-calculating section.

Abstract: A method, device, and system for calculating first and second distance ratios used to calculate a geometric probability between a voxel and a tube-of-response (TOR). The method includes determining a first-edge-line including a first-middle-point, determining a second-edge-line including a second-middle-point, determining a middle line of the TOR, projecting a first point of a first surface of the voxel to the middle line, projecting a second point of a second surface of the voxel to the middle line, calculating a first distance between one of the first and second middle-points and the first-projected-point, and a second distance between the one of the first and second middle-points and the second-projected-point, and determining a first distance ratio based on the first and second distances. The method calculates the second distance ratio similarly to the first distance ratio. The geometric probability is proportional to the product of the first and second distance ratios.

Abstract: Measuring devices each include a rotating body arranged between a wheel and a wheel hub with rotation centers aligned with each other, and an optical detector fixed to a body frame. The rotating body is formed of a disk portion attached between the wheel and a mounting surface of the wheel hub, and a cylindrical portion extending from the disk portion to the body frame and encompassing an outer circumferential surface of the wheel hub. In a circumferential surface of the cylindrical portion, there are provided elongate holes as light-transmitting portions that transmit light therethrough. The optical detector includes a light-emitting element serving as a light-emitting portion and a light-receiving element serving as a light-receiving portion, which are fixed to the body frame by a mounting bracket.

Abstract: A method and system for determining line edge roughness is disclosed. The method involves computing a first length for a plurality of points based on a first line size, computing a second length for the plurality of points based on a second line size, and determining a fractal dimension line edge roughness parameter based on a difference between the first length and the second length.

Abstract: Shortest path searcher 105 searches shortest paths from each landmark node to other landmark nodes based on the measured values of distance metrics between the landmark nodes which are stored in distance metric storage 102, and calculates distance metrics along the discovered shortest paths. Coordinate generator 101a generates coordinate axes of a predetermined dimension number from the distance metrics along the shortest paths which are calculated by shortest path searcher 105. Coordinate calculator 104a calculates coordinates of a coordinate-to-be-calculated node from the distance metrics between the coordinate-to-be-calculated node and the landmark nodes and the coordinate axes generated by coordinate generator 101a. Distance metric estimator 134 estimates a distance metric between two coordinate-to-be-calculated nodes whose coordinates are calculated by coordinate calculator 104a, using the calculated coordinates.

Abstract: Machine-implemented methods and apparatuses to automatically set-up a signal processing system are described. The signal processing system is set to a first bandwidth. A sampling frequency of the signal processing system is set to a first sampling frequency. Next, first samples of first signals are received at the first bandwidth and the first sampling frequency. First parameters of the first signals based on the first samples are determined. Next, a second sampling frequency is determined based on the first parameters to sample second samples. The first parameters of the first signals may be a mean transit time, a minimum transit time, a mean frequency of the signals, and a standard deviation of the frequency of the signals. Next, a mixer frequency is determined based on the first parameters. A low pass filter is set based on the mixer frequency.

Abstract: The method comprises the following steps: —disposing at least a cutting (62) on a cuttings support surface (67); —placing a measuring apparatus (63) over the support surface (67), the measuring apparatus (63) facing the cutting (62), at a distance from the cutting (62); —measuring a first distance (d1) between a reference plane and the support surface (67) in the vicinity of the cutting (62) along an axis (A-A?) transverse to the support surface (67) using the measuring apparatus (63); —measuring a second distance (d2) between the reference plane and the cutting (62) along the transverse axis (A-A?), using the measuring apparatus (63); —calculating a representative dimension (dzz) of the cutting based on the difference between the first distance (d1) and the second distance (d2).

Abstract: Embodiments of the invention provide a step detection. An accelerometer measurement in the form of a multi-dimensional acceleration vector is obtained. The magnitude of the accelerometer measurement is filtered using a low pass filter. A threshold for a down-crossing is provided as is a threshold for an up-crossing. A step detection is triggered if the magnitude of the accelerometer measurement is greater than or equal to the threshold for an up-crossing.

Abstract: One or more embodiments are directed to a magnet configured to be coupled to an object under test, an array of sensors configured to measure a magnetic field associated with the magnet, and a circuit configured to obtain voltage readings based on the measured magnetic field from the array of sensors and compute a distance between the array of sensors and the magnet based on the obtained voltage readings.

Abstract: According to various embodiments, the invention provides a method for establishing communication between a computer program in a computing system and a controller held in a hand of a user, comprising: capturing image data in a capture area in front of a display, the capturing configured to identify a two-dimensional location of the controller in the capture area; and capturing one-way sound communication between a location proximate to the display and a location at the controller, the sound communication being used to compute a third-dimensional location of the controller in the capture area.

Abstract: An apparatus for processing a length of material, comprises at least one processor configured to: receive a signal indicating manual designation of a point along the length of material as a first end point; receive at least one signal from at least one distance measuring device associated with a timber-working head, the signal indicating the distance between the first end point and a second end point on the length of material; and determine the actual length of material to be processed. An associated method is disclosed.

Abstract: Systems, methods, and machine-readable media are disclosed to assign one or more tasks to a plurality of warehouse employees. In one embodiment, a method is provided which comprises receiving an order for an item stored in a warehouse. A location of the item in the warehouse can be determined. A current location of each of the warehouse employees can be determined based on a strength of a signal from a wireless device assigned to each of the warehouse employees. The signal can be detected by at least two wireless access points at different location in the warehouse. At least one of the warehouse employees can be selected to fill the order based on the current location of each of the warehouse employees and the locations of the item.

Abstract: A wireless ranging system for determining a range of a remote wireless device may include a wireless transmitter and a wireless receiver. The wireless ranging system may also include a ranging controller to cooperate with the wireless transmitter and receiver to generate a multi-carrier base waveform, transmit a sounder waveform to the remote wireless device including concatenated copies of the multi-carrier base waveform, and receive a return waveform from the remote wireless device in response to the sounder waveform. The ranging controller may also generate time domain samples from the return waveform, convert the time domain samples into frequency domain data, and process the frequency domain data to determine the range of the remote wireless device.

Abstract: The device relates to a system for predicting the period for children to safely wear newly acquired footwear without the risk of damage to their growing feet, which is directly applicable in shoe shops (at their computer cash registers). The essence of the solution for a system for predicting the period for children to safely wear newly acquired footwear rests in the fact that it contains an input module measuring foot length and input of information about the age of the monitored child to which is linked a model for predicting the growth of the child's foot by applying the laws of growth, possibly also including genetic and local influences, connected to a comparative and inferential module establishing the predicted course of growth in foot length of the monitored child, to which is then linked an output module designating the nearest date for the necessary replacement of shoe size for the monitored child.

Abstract: The present invention is directed to automated apparatuses and methods for measuring fastener hole depth, fastener length, countersink depth and/or hole diameters in a workpiece (or other object) in an automated and extremely rapid, efficient and accurate manner. The apparatuses may be operably connected with a power source and with one or a plurality of computers or other data collection devices to transmit fastener hole depth, countersink depth and/or hole diameter measurement data and/or information to them each time that a fastener hole is measured, while the apparatus is continuously measuring fastener holes (i.e., with no interruptions).

Abstract: A safety control method for a fan includes: capturing an image of an object next to the fan and gathering distances between a plurality of points on the object and a depth-sensing camera, obtaining the distance between the object in the scene and the fan, comparing the distance between the object and the fan against a first preset value, and cutting off power to the fan when the distance between the object and the fan is less than the first preset value.

Abstract: A counter counts the run lengths of a binarized signal. A counting result correcting portion generates frequency distributions for run lengths for first run lengths, which are from a rising edge to a falling edge of the signal, and second run lengths, which are for a falling edge to a rising edge of the signal, calculates a total number of first run lengths of lengths that are no less than 0 times and less than 1 times a representative value for the first run lengths, calculates a total number of second run lengths of lengths that are no less than 0 times and less than 1 times a representative value for the second run lengths, calculates a total number of first run lengths, calculates a total number of second run lengths, and corrects the counting results.

Abstract: A method of measuring an angle includes orienting a measurement device at a reference position characterized by a reference angle. A first panoramic image defined by a predetermined range of elevation angles is acquired where the first panoramic image includes an object. A first bearing of the object in relation to the reference angle is determined and the measurement device is rotated to a measurement position characterized by a measurement angle. A second panoramic image defined by the predetermined range of elevation angles is acquired where the second panoramic image includes the object. A second bearing of the object in relation to the reference angle is determined. The measurement angle is computed as a function of the first bearing and the second bearing.

Abstract: Electronic supervision may be provided. First, a stock number may be sent to a database server. The stock number may correspond to an electrical cable. In response to sending the database server the stock number, specification information corresponding to the product may be received from a database stored on the database server. The specification information may be, for an electrical cable, a number of wires, a weight per thousand feet, and a diameter. Next, product production may be monitored to determine faults occurring during production. Monitoring the production may include displaying a data monitoring screen to production personnel. The data monitoring screen may provide data regarding the product and product comparison against a standard maintained within the database for the product. Fault data corresponding to the determined faults occurring during the production may be saved to the database.

Abstract: Methods are provided for: (i) measuring the position of the blade stagger angle axis for one or more blades of a row of blades attached to a rotor, (ii) measuring the blade tip stagger angle for one or more such blades, and (iii) measuring the blade tip axial displacement for one or more such blades. The methods use forward and rearward blade tip timing datasets for successive rotations of the blades from two axially spaced blade tip timing probes. The forward probe is forward of the rearward probe along the axial direction of the rotor. The blade tip timing datasets allow the times of arrival of the blades at the respective probes to be measured. The methods also use a once per revolution dataset for the successive rotations of the blades. The once per revolution dataset allows the angular velocity of the blades to be measured.

Abstract: A frequency characteristics measurer is disposed in the vicinity of an end of refrigerant piping, the end of which is connected to an outdoor unit, that connects the outdoor unit and an indoor unit of an air conditioner, and measures frequency characteristics of the refrigerant piping. A filter is attached at a position between the outdoor unit and a position where a terminal of the frequency characteristics measurer is connected, so as to wrap the refrigerant piping. A piping length calculator is connected to the frequency characteristics measurer via an interface cable, and acquires, via the interface cable, frequency characteristics measured by means of the frequency characteristics measurer. The piping length calculator extracts a lowest anti-resonant frequency from the acquired frequency characteristics, and calculates the length of the refrigerant piping on the basis of the extracted lowest anti-resonant frequency.

Abstract: Embodiments of the present disclosure provide an apparatus and method for managing an orientation of a tab of a control surface of an aircraft comprising an elongate structure having a number of members configured to position the elongate structure to a control surface, a bracket located on the elongate structure, a plurality of indicators located along the elongate structure, and a data processor in communication with the plurality of indicators. The bracket may be positioned against an edge of a tab of the control surface. Each of the plurality of indicators may be configured to generate a number of measurements about an orientation of the tab on the control surface. The data processor may be configured to present information about the orientation of the tab on the control surface.

Abstract: The invention relates to a turbomachine having a rotor (10) comprising rotor blades (12), having a rotor housing (16) which surrounds at least sections of the rotor (10) or the rotor blade (12) so as to form a rotor gap (d), and having a gap-measuring system (18) which is coupled to a capacitive sensor device (20) having an electrode and a counterelectrode for determining measured capacitance values (C) which characterize the rotor gap (d), wherein the rotor (10) or the rotor blades (12) is/are connected as the electrode of the sensor device (20), wherein at least part (22) of the rotor housing (16) is connected as the counterelectrode. The invention also relates to a gap-measuring system (18) and to a method for determining a rotor gap (d) between a rotor (10) comprising rotor blades (12) and a rotor housing (16) of a turbomachine, which rotor housing surrounds at least sections of the rotor (10) or the rotor blades (12).

Abstract: The present invention generally relates to positioning systems. Specifically, this invention relates to a system and method for communicating distance travelled between a plurality of mobile devices when tracked across a contemporaneous period of time.

Abstract: The invention relates to a linear sensor, comprising a sleeve, a pin which comprises a permanent magnet and is linearly displaceably supported in the sleeve, and a magnetic field sensor which is fastened to the sleeve and used to detect a displacement of the permanent magnet, characterized in that the pin is guided by way of a substantially cylindrical guide and has a magnet or pin holder.

Abstract: A method for calibration of a thickness gauge is provided in which the thickness gauge measures the thickness of a measured object in a stipulated measurement direction with at least one displacement sensor, operating contactless or by scanning, a reference object with known thickness and shape being brought into at least one partial area of the measurement field of the at least one displacement sensor.

Abstract: A displacement detection apparatus includes a scale 115 on which marks are disposed, first and second position detection sensors 111 and 112 detecting positions of the marks 110, and a processor 409 performing a calculation processing of an output signal from each of the first and second position detection sensors 111 and 112. The first and second position detection sensors 111 and 112 are disposed at a distance L from each other to be movable relative to the scale 115. The processor 409 calculates a correction value P? of a mark pitch P of the marks 110 using the distance L, a first time TPK required for K marks of the marks 110 to pass a detection position, and a second time TL required for a specific mark of the marks 110, which are measured at the same time of the first time TPK, to move the distance L.

Abstract: Disclosed is a magnetic field intensity conversion method in a magnetic field intensity conversion device configured to convert and output magnetic field intensity for each distance from a magnetic field source, and the method includes: receiving a reference distance and a target distance from the magnetic field source through an input unit; primarily comparing the reference distance with a critical value calculated in accordance with the wavelength of an electromagnetic wave, in a control unit; secondarily comparing the target distance with the critical distance, in the control unit; and calculating conversion magnetic field intensity by converting reference magnetic field intensity prescribed for the reference distance into magnetic field intensity at the target distance, on the basis of the comparing results in the primary comparing and the secondary comparing, in the control unit.

Abstract: An input signal is converted to a feature-space representation. The feature-space representation is projected onto a discriminant subspace using a linear discriminant analysis transform to enhance the separation of feature clusters. Dynamic programming is used to find global changes to derive optimal cluster boundaries. The cluster boundaries are used to identify the segments of the audio signal.

Abstract: Described herein are embodiments of methods and systems of monitoring electrical brushes in electrical rotating machinery. One embodiment of the method comprises continuously measuring at least one parameter associated with an electrical brush; and determining, using the at least one continuously measured parameter associated with the electrical brush, maintenance for the electrical brush.

Abstract: Apparatus and method to determine a distance to a second apparatus that is movable. The apparatus and method may detect a range request transmitted between a third apparatus and the second apparatus, wherein the third apparatus is geographically fixed, detect a range response transmitted between the second apparatus and the third apparatus in response to the range request, and determine the distance to the second apparatus based on the detected range request and range response at the apparatus.

Abstract: A machine diagnosing device includes a drive object driving force estimating unit for estimating drive object driving force based on a torque command value toward a servo motor which is acquired using a position command value, an elastic deformation error estimating unit for estimating an elastic deformation error of a ball screw with the drive object driving force, and a positional deviation calculating unit for calculating a positional deviation using a rotation position of the servo motor and the position of a table, and a machine damage diagnosing unit for diagnosing a machine damage by calculating a machine damage coefficient using the elastic deformation error and the positional deviation, comparing the obtained machine damage coefficient with a previously set threshold value, and diagnosing a damage state of the drive object.

Abstract: A moving body includes a transmission device which simultaneously sends out a trigger signal and an ultrasonic signal modulated by pseudo random sequence data, and a reception device which detects a position of the moving body. The reception device includes two ultrasonic reception units The reception device includes a unit which calculates a correlation value between a waveform of the ultrasonic signal and a modulation reference waveform of a pseudo random sequence data assigned to the moving body The reception device includes a unit which calculates a time of propagation of the ultrasonic to arrive at the two ultrasonic reception units from a time point of reception of the trigger signal and a time point of detection of a first peak of the correlation value, and a unit which calculates a position of the moving body based on the ultrasonic propagation time and an interval length between the ultrasonic reception units.

Abstract: A method for determining orthopedic alignment is provided. The method includes monitoring a first and second sequence of signals transmitted from the first device to a second device, estimating a location of the first device from sensory measurements of the signals at respective sensors on the second device, calculating a set of phase differences, weighting a difference of an expected location and estimated location of the first device with the set of phase differences to produce a relative displacement, and reporting a position of an orthopedic instrument coupled to the first device based on the relative displacement.

Abstract: Systems and techniques for varying a scan rate in a measurement instrument. The techniques may be used in scanning probe instruments, including atomic force microscopes (AFMs) and other scanning probe microscopes, as well as profilometers and confocal optical microscopes. This allows the selective imaging of particular regions of a sample surface for accurate measurement of critical dimensions within a relatively small data acquisition time.

Abstract: A sensor for the measurement of distances has a transmitter to transmit a signal at presettable transmission times and a receiver for the reception of the signal remitted in a monitored zone, wherein the received signals are accumulated in a histogram over a plurality of measurement periods to determine the reception time from the histogram and thus the signal transit time. The reception time is determined by an interpolation and thus with a better time resolution than that of the histogram. To facilitate the interpolation, transmission times are preset over the plurality of measurement periods in accordance with a distribution such that the time position of the reception time varies within the histogram over the plurality of measurement periods.

Abstract: A measuring instrument includes a main body, a stylus configured to be movable in relation to the main body, an encoder for detecting the amount of displacement of the stylus relative to the main body, a calculating section for calculating a measurement value from the amount of displacement detected by the encoder, a display section for displaying the measurement value calculated by the calculating section, an operation section for issuing a command to the calculating section, and a storage section that stores an effective measurement range larger than a lower limit and smaller than an upper limit of the movement stroke of the stylus. The calculating section makes a determination as to whether or not the amount of displacement detected by the encoder falls within the effective measurement range stored in the storage section and displays the result of such a determination on the display section.

Abstract: In an example embodiment, a method is provided using a computing device that has a sensor for custom golf club fitting. Here, a hand dimension is detected using the sensor of the computing device. The hand dimension correlates to a grip size of a golf club. A query is composed with a parameter based on the detected hand dimension. The query is then communicated to an online platform that facilitates sales of golf clubs. In response to the query, an inventory of a number of the golf clubs having the grip size is received from the online platform. The inventory is then provided for display on the computing device.

Abstract: An impact location and amplitude sensory system is provided. Such an impact sensory system may be useful in conjunction with gaming, education, as a control and feedback mechanism for virtually any surface. One embodiment of the impact sensory system may include at least one sensor and a signal processor. The sensor(s) may couple to the object. Sensors may include any of microphones and accelerometers. The sensor(s) receive an impact wave from an impact to the object, either as a propagating acoustic wave or as a traverse phase shift in natural oscillation. The sensor(s) may generate an impact signal in response to the sensed impact wave. The signal processor may couple to the sensor(s). The signal processor may include a preamplifier, an impact triangulator, and an outputter. The impact triangulater may identify a location of the impact from the impact signals. The outputter may then output data regarding the location of the impact.

Abstract: A position sensing system including a flexible tether and at least one sensor at least partially embedded within a portion of the flexible tether is disclosed. The sensor may be adapted to detect a sensor position factor. The system also includes a communication device adapted to transmit the sensor position factor from the sensor, and a signal processor adapted to receive the sensor position factor. The signal processor is also adapted to calculate at least one of the shape or orientation of the flexible tether from the sensor position factor. The sensor position factor may be relative orientation, relative depth, relative pressure, presence of a magnetic field, presence of an electric field, acceleration, or relative rate of rotation. The system may also include a probe connected to the flexible tether, and the signal processor may calculate the orientation of the probe from the sensor position factor.

Abstract: Determining dipper geometry. A method of determining dipper geometry includes obtaining a first set of data associated with an industrial machine for a first orientation of the industrial machine, and obtaining a second set of data associated with the industrial machine for a second orientation of the industrial machine. The first set of data includes at least one of a first length associated with a hoist rope and a first angle associated with the hoist rope, and the second set of data includes at least one of a second length associated with the hoist rope and a second angle associated with the hoist rope. The value of the physical characteristic of the dipper is then determined based on the first set of data and the second set of data.

Abstract: A data acquisition device for an auto triggering thereof includes a movement detector, a distance detector, a processor, and a data acquiring component. The movement detector detects movement data of the data acquisition device. The movement data indicates a state of movement for the data acquisition device. The state of movement is one of static and dynamic. The distance detector detects distance data between the data acquisition device and an object to which data is to be acquired. The processor receives the movement data to determine the state of movement and, when the state of movement is determined to be static, receives the distance data to determine the distance of the object from the data acquisition device. The data acquiring component acquires the data from the object when the processor initially determines that the state of movement is static and subsequently determines the distance is within a predetermined range.

Abstract: There is provided a measuring device that includes a first measuring unit that measures a distance between a measurement reference point and an intersection of a plane and a line passing through the measurement reference point, a calculator that calculates angles formed by the plane and the intersection; and a second measuring unit that measures an object using data of the distance or the angles.

Abstract: A method, device, and system for calculating first and second distance ratios used to calculate a geometric probability between a voxel and a tube-of-response (TOR). The method includes determining a first-edge-line including a first-middle-point, determining a second-edge-line including a second-middle-point, determining a middle line of the TOR, projecting a first point of a first surface of the voxel to the middle line, projecting a second point of a second surface of the voxel to the middle line, calculating a first distance between one of the first and second middle-points and the first-projected-point, and a second distance between the one of the first and second middle-points and the second-projected-point, and determining a first distance ratio based on the first and second distances. The method calculates the second distance ratio similarly to the first distance ratio. The geometric probability is proportional to the product of the first and second distance ratios.

Abstract: One aspect of the invention provides a theft detection node including: a power source; an accelerometer; a gyroscope; a transmitter; and a microcontroller in communication with the power source, the motion detector, and the transmitter. The microcontroller is programmed to determine whether the theft detection node is being transported and, if the theft detection node is being transported: estimate the distance traveled between successive stops and transmit the estimated distance to a server. Another aspect of the invention provides a method of determining a path traveled by a node. The method includes: generating a Hidden Markov Model having a plurality of hidden states, each hidden state corresponding to a road segment; receiving information from the node about one or more turns and the distance traveled between successive stops; and determining the most likely path for the distance between successive stops and a distance between successive turns.

Abstract: The present invention relates to systems and methods for examining a number of components that have been assembled onto a substrate. In general, the invention relates to the calibration of inspection tools for inspecting components on the substrate. In particular, the invention relates to the calibration of inspection tools for detecting the accuracy of the array pegs positions on an assembled HTA plate.

Abstract: Provided is a location measurement method of a mobile node using a predictive filter is provided for improving the location measurement accuracy of the mobile node. The location measurement method of a mobile node detects change of movement pattern of the mobile node, corrects weights of a location measurement period and a predictive filter depending on the change of movement pattern, and compensates a location of the mobile node using the corrected weights of the location measurement period and predictive filter.

Abstract: A method of inspecting a mark arrangement according to an embodiment of the present invention includes: generating mask data in which mark seed data that includes an inspection mark that includes vector information and is not drawn on a mask and mark data is arranged on a scribe line of the mask, calculating coordinates of the inspection mark from a reference position of the mark seed data, detecting an arrangement state of the inspection mark with respect to the reference position by using the coordinates and vector information, and judging whether the mark seed data is correctly arranged by comparing the arrangement state of the inspection mark with an arrangement check rule.

Abstract: A device may include a plurality of sensors substantially coplanar with one another in a sensor plane, each sensor generating a sense value that varies according to a physical distance between the sensor and an object without contacting the object; and control circuits that generates at least first position values, second position values and third position values in response to the sensor values, the first and second position values identifying a position in a space adjacent to the sensor plane.