Class / Patent application number | Description | Number of patent applications / Date published |
702154000 | Inclinometer | 42 |
20080215288 | Inclination calculation apparatus and inclination calculation program, and game apparatus and game program - An inclination calculation apparatus within a game machine computes an inclination of an input device having an acceleration sensor/detector capable of detecting an acceleration in at least two axial directions. Programmed logic circuitry within the apparatus consecutively generates preliminary data which is representative of a current inclination and which is uniquely determined from acceleration data obtained from the acceleration sensor/detector. Programmed logic circuitry within the apparatus also regularly consecutively computes new/updated inclination vectors in real-time based on a previously computed inclination vector, a variable “effectiveness” valve and a current inclination vector, where the effectiveness value is a correction factor that represents the degree to which the direction of the previously computed inclination vector must be made closer to the direction of the current inclination vector to result in a direction for the new/updated inclination which more accurately reflects the actual inclination of the input device at the time the acceleration data is acquired. | 09-04-2008 |
20080275667 | INCLINATION CALCULATION APPARATUS AND INCLINATION CALCULATION PROGRAM, AND GAME APPARATUS AND GAME PROGRAM - An inclination calculation apparatus sequentially calculates an inclination of an input device operable in terms of a posture thereof. The input device includes acceleration detection means and imaging means. The inclination calculation apparatus sequentially calculates first inclination information representing an inclination of the input device from positions of two imaging targets in a taken image obtained by the imaging means. The inclination calculation apparatus also sequentially calculates second inclination information representing an inclination of the input device from an acceleration detected by the acceleration detection means. The inclination calculation apparatus calculates an inclination of the input device using the first inclination information and the second inclination information. | 11-06-2008 |
20080319708 | Apparatus and Method For Estimating Virtual Axis Magnetic Compass Data to Compensate the Tilt Error of Biaxial Magnetic Compass, and Apparatus For Calculating Azimuth Based on the Same - Provided is an apparatus for estimating virtual axis geomagnetic data using a 2-axis geomagnetic sensor and an inclinometer, including a geomagnetic data normalizing unit for normalizing 2-axis geomagnetic data measured by the 2-axis geomagnetic sensor, a tilt angle calculator for calculating a tilt angle of the 2-axis geomagnetic sensor by using tilt information measured by the inclinometer, and a virtual axis geomagnetic data estimator for determining a magnitude of virtual geomagnetic data with respect to a virtual axis by using the normalized 2-axis geomagnetic data, and determining a sign of the virtual geomagnetic data based on the normalized 2-axis geomagnetic data, the calculated tilt angle and a dip angle to thereby estimate the virtual geomagnetic data. | 12-25-2008 |
20090024354 | Road gradient estimating system - An estimated gradient value of a road is calculated based on a vehicle acceleration “A” and a time varying portion “A′” of a wheel speed. In a case that an acceleration corresponding value “Ggrad0” for the estimated gradient value is not regarded as indicating an exact figure, due to influences of disturbances, the acceleration corresponding value “Ggrad0” is corrected by a limiting value for rate-of-change with regard to the road gradient depending on respective vehicle speed, and by a limiting value for the road gradient. As a result, the acceleration corresponding value “Ggrad” for the estimated gradient value can be more exactly obtained. | 01-22-2009 |
20090138232 | MOVING BODY WITH TILT ANGLE ESTIMATING MECHANISM - To provide a moving body with a tilt angle estimating mechanism capable of estimating a tilt angle of a vehicle body with high accuracy. A moving body according to the present invention is a moving body including: an acceleration sensor for detecting an acceleration in two axial directions; a gyro sensor for detecting an angular velocity of a vehicle body; and a tilt angle estimating mechanism for estimating a tilt angle of the vehicle body. The tilt angle estimating mechanism includes: means for estimating a tilt angle in response to the acceleration sensor based on the acceleration detected by the acceleration sensor; means for estimating a second tilt angle based on the angular velocity detected by the gyro sensor; and means for estimating a tilt angle with a linear model equation of the moving body being regarded as an observer, in accordance with the tilt angle based on the acceleration sensor and the tilt angle based on the gyro sensor. | 05-28-2009 |
20090271144 | DETECTION UNIT PROTECTED AGAINST DETACHMENT AND/OR FORCED ENTRY AND SYSTEM THAT COMPRISES AT LEAST ONE SUCH UNIT - A detection unit integrates at least one motion detector, a presence detector, a camera, or a combination of at least two such devices, in particular as a component of a security, alarm and/or surveillance system, whereby the functional elements of the unit are housed in a housing that is attached to a wall, a pole, a roof or the like, via an attachment accessory, in particular of the articulated arm type or the like. The unit also includes an element ( | 10-29-2009 |
20090299689 | Portable Leveling Table - An automatic table leveling system includes a linear accelerometer, a microcontroller, motor drivers, motors and lead screws. The microcontroller reads linear accelerometer sensor information which indicates the table top's attitude with respect to the gravity vector. Then the microcontroller sends signals to the motor drivers to cause the motors to drive the table legs up or down via a lead screw mechanism. The changed leg lengths adjust the attitude of the table top to make it level. | 12-03-2009 |
20100063768 | Magnetic sensing device for navigation and detecting inclination - A system and device for detecting yaw and changes in pitch angle for use with navigational and positional devices. The system and device include a multi-axis magnetic field sensing device and a controller. Preferably, the magnetic field sensing device is a multi-axis magnetic compass that is capable of sensing variations in pitch and yaw. The controller is adapted to process yaw and pitch rotational data to determine a positive or a negative change in pitch. | 03-11-2010 |
20100063769 | METHOD FOR THE DETERMINATION OF A NACELLE-INCLINATION - In one aspect, a method for the determination of a nacelle-inclination is provided. A first difference-signal is formed from the difference of a measured nacelle acceleration and an offset-value from a calibration. A second difference-signal is formed from a difference of the first difference-signal and a feedback signal. A first sum-signal is formed from adding an integrated second difference-signal with the product of the second difference signal and a factor. A second sum signal is formed from adding an integrated first sum-signal with the product of the first-sum-signal and the factor. A corrected signal is formed by a product of the second sum-signal and an equivalent tower height. A first nacelle-signal is formed by the arc-tangent of the corrected signal. A nacelle inclination is obtained from filtering the first nacelle-signal by a low-pass-filter. The feedback-signal is formed by multiplying the acceleration of gravity with the sine of the first nacelle-signal. | 03-11-2010 |
20100121604 | APPARATUS AND METHOD FOR IDENTIFYING THE ABSOLUTE ROTATION OF A ROTATING IMAGING SYSTEM - A rotating imaging system has a rotating portion, an idler, at least one sensor, a tilt sensor and a processor. The rotating portion has a diameter and rotates about a central axis. The idler rotates about an axis parallel to the central axis, and has a second diameter that is smaller than the diameter of the rotating portion. The rotating portion and the idler engage with each other such that both rotate simultaneously. The at least one sensor detects flags on the idler as the idler rotates. The tilt sensor is mounted to the rotating portion and determines a rotation angle of the rotating portion within a range of one revolution, and the processor determines an absolute rotation of the rotating portion based on at least a signal from the at least one sensor and the rotation angle determined by the tilt sensor. | 05-13-2010 |
20100241395 | Method and device for measuring a vehicle - The invention relates to a method and a device for measuring a damaged vehicle, in which inclination of the vehicle is measured with the measuring device and the measured inclination of the vehicle is used as a datum plane, distances of measuring points ( | 09-23-2010 |
20110004439 | COMPACT ELECTRONIC DEVICE WITH BUILT-IN INCLINATION SENSOR AND CORRECTION METHOD - An electronic device is provided with an inclination sensor for computing inclination, a control unit which conducts predetermined control based on a value computed by the inclination sensor, a case which has the inclination sensor and the control unit therein, and a suspension portion for suspending the case, and the control unit controls correction of the reference value of the inclination sensor based on a state where the case is suspended by the suspension portion and still. | 01-06-2011 |
20110093238 | ELECTROMECHANICAL DEVICE FOR MEASURING THE INCLINATION OF A SUPPORT PLANE WITH HIGH RESOLUTION, HIGH ACCURACY AND LOW SENSITIVITY TO OUTSIDE DISTURBANCES - An electromechanical device for measuring the inclination of a support plane with high resolution, high accuracy and low sensitivity to outside disturbances, comprising a first electromechanical pendulum system, controlled in a closed loop to measure the static rotations of an inverted pendulum pivoted to a supporting structure which can be associated with the support plane whose inclination is to be measured. The measurement is performed by measuring the mechanical torque required to keep the inverted pendulum in a neutral position, i.e., in a position which is substantially perpendicular to the support plane. This is made possible by a first motor which is associated with the inverted pendulum and turns it as a function of its angular deviation from the neutral position measured by a first position sensor associated with the inverted pendulum. | 04-21-2011 |
20110106490 | CONVEYOR DIAGNOSTIC DEVICE AND CONVEYOR DIAGNOSTIC SYSTEM - According to one embodiment, a conveyor diagnostic device diagnoses an abnormal state of a cyclically moving conveyor. The conveyor diagnostic device includes a first tilt sensor, a second tilt sensor, a table, and a processing unit. The first and second tilt sensors are attached to a predetermined position of the conveyor and detect tilt angles of the conveyor in a vertical direction and horizontal direction, respectively. The table indicates a relationship between a tilt angle which changes in the vertical direction and sections included in one revolution of the conveyor. The processing unit specifies an abnormality occurrence position of the conveyor based on a tilt angle in the vertical direction, the table, and an elapsed time after ingression for a section corresponding to the tilt angle in the vertical direction, when a tilt angle in the horizontal direction exceeds a predetermined management limit value. | 05-05-2011 |
20110166823 | SURFACE MEASUREMENT INSTRUMENT - A surface measurement instrument for obtaining surface characteristic data of a sample surface is described. Relative movement between a reference surface and a sample support is caused to occur while a sensor senses light intensity at intervals along a scan path to provide a series of intensity values representing interference fringes produced by a region of a sample surface during said relative movement and from which series of intensity values surface characteristic data can be derived. The sample support is both translatable and tiltable in at least one direction perpendicular to a scan direction so that the sample support can be both tilted to cause the scan path to be normal to the sample surface region and translated to compensate for translation movement due to the tilting. | 07-07-2011 |
20110178766 | METHOD FOR EVALUATING MOUNTING STABILITY OF ARTICULATED ARM COORDINATE MEASUREMENT MACHINE USING INCLINOMETERS - A portable articulated arm coordinate measurement machine can include a base, a manually positionable articulated arm portion having opposed first and second ends, the arm portion including a plurality of connected arm segments, an electronic circuit that receives the position signals from the transducers, a first inclinometer coupled to the base, wherein the inclinometer is configured to produce a first electrical signal responsive to an angle of tilt of the base and an electrical system configured to record a first reading of the first inclinometer and a second reading of the first inclinometer, wherein the first reading is in response to at least one of a first force applied to the base and a third force applied to the mounting structure, wherein the second reading is in response to at least one of a second force applied to the base and a fourth force applied to the mounting structure. | 07-21-2011 |
20110191061 | SYSTEM FOR INSPECTING A HULL OF A SHIP AND ASSOCIATED METHOD - A system for inspecting the hull of a vessel includes a movable machine which moves on the hull and a positioning element to determine an instantaneous position of the machine in a reference point. The positioning element includes: —first and second coaxial encoding wheels separated from each other by an inter-wheel spacing and in contact with the hull, and are capable of measuring first and second linear movements of the machine; —first and second inclinometers arranged so as to measure inclinations, relative to a reference direction, of a first axis and a second axis of a frame of reference linked to the machine; and, —a processing element, which receives data measured in order to calculate a variation of the position of the machine in the frame of reference, and in order to integrate the successive position variations in order to obtain the instantaneous position of the machine. | 08-04-2011 |
20110238368 | INCLINATION CALCULATION APPARATUS AND INCLINATION CALCULATION PROGRAM, AND GAME APPARATUS AND GAME PROGRAM - An inclination calculation apparatus calculates an inclination of an input device operable in terms of a posture thereof. The input device includes an acceleration sensor and an imaging element. In one non-limiting example implementation, the inclination calculation apparatus computes first inclination information representing an inclination of the input device based upon a coordinate position of an imaging target in an acquired image obtained by the imaging element and an estimated coordinate position of a second imaging target not acquired by the imaging element. The inclination calculation apparatus also computes second inclination information representing an inclination of the input device solely from an acceleration detected by the acceleration sensor. The inclination calculation apparatus then calculates an inclination of the input device using the first inclination information and the second inclination information. | 09-29-2011 |
20110282624 | Method for Determining Incline Angle of Electromagnetic Pointer - A method for determining an incline angle of electromagnetic pointer is disclosed. The method comprises the following steps. First of all, an electromagnetic input pen/stylus is provided over antennas X | 11-17-2011 |
20110295553 | GAME APPARATUS AND STORAGE MEDIUM STORING GAME PROGRAM - A gravity direction calculating apparatus for calculating a direction of gravity with respect to an input device, including: an obtaining logic unit for successively obtaining acceleration data output from a multi-axis acceleration sensor included in the input device; a period detecting logic unit for detecting a period from start to end of movement of the input device, as a movement period, based on the obtained acceleration data; and a gravity direction calculating logic unit for calculating a sum of one or more acceleration vectors corresponding to one or more pieces of acceleration data obtained during the movement period, a direction determined by a vector indicated by the sum being the gravity direction, wherein the acceleration vector is a vector whose components are acceleration values with respect to a plurality of axes of acceleration values with respect to axes indicated by the acceleration data. | 12-01-2011 |
20120130675 | BUILDING SURVEYING DEVICE WITH AN AUTOMATIC PLUMB POINT FINDING FUNCTIONALITY - A building surveying device comprising a base, an upper part supported on the base such that it can rotate about a rotation axis, a sighting unit with a laser source designed for emitting a laser beam, and a laser light detector and an evaluation and control unit. The building surveying device has a plumb point finding functionality which, after being triggered, runs automatically, at least in part, and in the course of which the alignment of the sighting unit is changed under automatic control by the evaluation and control unit with the aid of the first and/or the second rotary drive and as a function of a known, defined first spatial point in such a way that precisely one such second spatial point lying on an object surface is approached and marked by the laser beam, which lies on a vertical plumb line containing the first spatial point. | 05-24-2012 |
20120173197 | APPARATUS AND METHOD FOR MEASURING RUNOUT - A method and apparatus for measuring runout of using a distance measuring sensor mounted to a rotor and targeted at a circular wall, an electronic inclinometer mounted within a diameter of a hub of the rotor, and a microcontroller in data communication with the inclinometer and the sensor. A computer may be operably connected to the microcontroller and used for programming the microcontroller. A rotatable fixture including a bar mounted to the hub may be used to mount the sensor to a distal end of the bar and the microcontroller and the inclinometer may be mounted on the bar. Runout of a fan shroud circumscribing fan blades of an engine rotor may be measured with the apparatus and method and the bar angularly located between a pair of adjacent blades. The computer may be used to gather data from inclinometer and sensor and calculate runout. | 07-05-2012 |
20120310594 | INCLINATION ANGLE CALCULATION DEVICE - An inclination angle calculation device comprises a motion detector for detecting motions of a traveling object during travel, in two directions included in a cross-section surface of the traveling object, the two directions being orthogonal with each other; and an arithmetic unit for calculating an inclination angle of the traveling object during travel in the cross-section surface, using a frequency of the motion in one of the two directions and a rolling frequency in the other direction of the two directions. | 12-06-2012 |
20130060520 | Method And System For Position Determination Using RFID Devices - A method of determining a gauge and a tilt of a rail track at a location includes providing a rail trolley including a processor, a memory coupled to the processor, an RFID reader, a gauge sensor, and a tilt sensor and positioning the rail trolley on the rail track at the location. The method also includes interrogating one or more RFID tags positioned along the rail track and determining, using the processor, a fixed location associated with each of the one or more RFID tags. The method further includes determining, using the processor, the location of the rail trolley in relation to the fixed locations associated with each of the one or more RFID tags and determining the gauge and tilt of the rail track at the location of the rail trolley. | 03-07-2013 |
20130080112 | INCLINATION ANGLE COMPENSATION SYSTEMS AND METHODS - An inclination angle compensation system for determining an inclination angle of a machine is disclosed. The inclination angle compensation system may have a non-gravitational acceleration estimator configured to estimate a non-gravitational acceleration of a machine based on an estimated inclination angle and an acceleration output from a forward acceleration sensor. The inclination angle compensation system may also have an inclination angle sensor corrector configured to receive an inclination angle output from an inclination angle sensor, determine an inclination angle sensor acceleration based on the inclination angle output, and calculate a corrected inclination angle of the machine based on the non-gravitational acceleration and the inclination angle sensor acceleration. | 03-28-2013 |
20130138393 | INCLINOMETER - An inclinometer and method for use in the same are disclosed herein. An example of such an inclinometer includes a substrate and a heater on the substrate. The inclinometer also includes a plurality of fluid passageways coupled to the substrate and configured to conduct fluid past the heater to an exit. The inclinometer additionally includes a. temperature sensor adjacent the exit which is configured to measure a temperature in each of the fluid passageways. The inclinometer may further include a processor coupled to the temperature sensor to receive the temperature measured in each of the fluid passageway's which is configured to determine an angle of inclination based on the measured temperatures. A non-transitory computer readable storage medium may store instructions that, when executed by the processor, cause the processor to determine the angle of inclination based on the measured temperatures. | 05-30-2013 |
20130262026 | SURVEYING SYSTEM - A controller ( | 10-03-2013 |
20140025335 | STORAGE MEDIUM HAVING INFORMATION PROCESSING PROGRAM STORED THEREON, INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING SYSTEM, AND ATTITUDE CALCULATION METHOD - An example information processing device calculates an attitude of an input unit having a magnetic sensor. The information processing device repeatedly obtains detected magnetic vectors detected by the magnetic sensor. The information processing device stores the detected magnetic vectors in a storage unit where each detected magnetic vector is classified based on a direction from a reference position to the end point position of the detected magnetic vector. The information processing device repeatedly estimates a center position of a spherical body having a curved surface which is estimated based on the end point positions of detected magnetic vectors obtained by extracting, from among the classified detected magnetic vectors, at least one detected magnetic vector for each class. The attitude of the input unit is calculated based on a direction vector representing a direction from the center position to the end point position of the detected magnetic vector. | 01-23-2014 |
20140067318 | INCLINATION DETERMINATION SYSTEM - An inclination angle determination system for determining an inclination angle of a machine is disclosed. The inclination angle determination system may have an inclinometer, an accelerometer, and a controller. The controller may be configured to determine the inclination angle by receiving inclination data from the inclinometer and derived inclination data based on acceleration data from the accelerometer. The controller may compare the inclination data and the derived inclination data, and may determine which of the inclination data and the derived inclination data to use as the inclination angle of the machine based on the comparison. | 03-06-2014 |
20140074429 | Using Clustering Techniques to Improve Magnetometer Bias Estimation - In some implementations, a computer-implemented method includes receiving a reading from a magnetometer of a mobile device. A cluster from a plurality of clusters of bias offsets generated from previously-calibrated readings is selected. The selected cluster has a representative bias offset, a mean of magnitudes in the selected cluster, and a magnitude threshold. An external magnetic field is estimated based on the reading and the representative bias offset for the selected cluster. Whether a magnitude of the estimated external field is within a magnitude range defined by the mean magnitude and the mean magnitude plus the magnitude threshold is determined. | 03-13-2014 |
20140081595 | GRAVITY GRADIOMETER SURVEY TECHNIQUES - We describe improved techniques for airborne gravity gradiometer surveys. In particular we describe a method and system for performing a gravity gradiometer survey of a surveyed region of terrain, the method comprising: providing an aircraft with a gravity gradiometer; flying said aircraft over said terrain at a speed of at least 100 m/s and at an average height above said terrain of above said terrain of at least 300 m; and collecting gravity gradient data for said surveyed region of terrain from said gravity gradiometer, said gravity gradient data comprising data for at least one component of the gravity gradient tensor. | 03-20-2014 |
20140149071 | METHOD OF DETERMINING THE LONGITUDINAL PITCH OF BLOCKS OF A TREAD BAND AND TREAD BAND - Method of determining the longitudinal pitch of blocks of a tread band having a raised pattern with a number of longitudinal grooves and transverse grooves; the method including the step of calculating a best longitudinal pitch of the blocks, to minimize pass-by noise at a given target speed, as a function of the resonance frequency of the longitudinal grooves and an integer greater than zero. | 05-29-2014 |
20140180633 | ACCELEROMETER BASED ATTITUDE DETERMINATION - Determining an object's inclination fixed reference frame relative to a gravity field includes supplying circularly disposed accelerometers rigidly linked by the object and measuring in non-collinear directions. A radius linking it to the circle's center defines an accelerometer's measurement direction. The accelerometers measure components of the field along the measurement directions to provide measurement values. Then, a matrix equation is solved to obtain the object's inclination relative to the reference frame. | 06-26-2014 |
20140278226 | Method for Characterization of Vehicle Support Surfaces - A method for characterizing the surface over which a vehicle is to be rolled during a rolling compensation procedure. A set of wheel alignment angle sensors are mounted to the rearmost fixed axle of a vehicle which is then backed onto the floor surface to be characterized, and rolled in reverse over the region of the floor surface generally traversed during a rolling compensation procedure. As the vehicle is rolled in reverse, a pair of wheel alignment angle sensors temporarily positioned at selected points on the floor surface measure a distance to the wheel-mounted alignment angle sensors, which in turn, are acquiring camber angle measurements. The resulting set of measurements is stored in an accessible data storage device, characterizing the camber altering contours of a path across the floor surface. | 09-18-2014 |
20140316740 | METHOD FOR DETERMINING THE INCLINATION OF A TOWER - A method for determining the inclination of a tower, in particular of a wind turbine, in relation to the gravitational field, by evaluating the output signal from an acceleration sensor configured to pick up static acceleration in the direction of a sensor measurement axis, which method is simple to use and can be carried out on any wind turbines. It is proposed that the acceleration sensor is attached to a component, preferably to a main frame, which can be rotated about the longitudinal axis of the tower in an azimuth angular range of at least 180°, such that the sensor measurement axis is oriented substantially parallel to the plane of rotation of the component, the output signals, in the case of various azimuth angles, being successively measured and recorded by rotating the component between measurements, the inclination being determined by evaluation of the series of measurements obtained. | 10-23-2014 |
20140372074 | TIP-OVER SENSOR - A sensor uses an accelerometer to measure acceleration values in two axes to detect if a tip-over angle of a system has exceeded a tip-over threshold angle α. Each acceleration value is respectively multiplied by a corresponding factor a, b. The two factors a, b are chosen as a function of the tip-over threshold angle α. Two values are calculated and each calculated value is compared to zero. Depending upon which values are greater than or less than zero determines whether the tip-over angle has been exceeded. The detector, upon sensing of a tipped-over condition, provides a signal indicative of that condition. The output signal can be employed to trigger an alarm or to shut down a device that has tipped over or to otherwise denote the tipped-over condition. | 12-18-2014 |
20150032411 | Envelope Calculation By Means of Phase Rotation - According to an embodiment of the invention, the received signal of a level sensor is sampled at discrete times, and the sampled values are digitised. New values are obtained from the digitised sample values by rotating the phase through a predetermined angle, which new values are then used together with the digital sample values to calculate the envelope curve. | 01-29-2015 |
20150100272 | Ram Angle and Magnetic field Sensor (RAMS) - A method and system is described for determining attitude for a satellite. A two-axis ram sensor head measures neutral winds and provides a density of the neutral winds. A three-axis magnetometer measures a geomagnetic field. A measurement interface module calculates attitude information, which includes three-axis attitude knowledge of a satellite relative to a local-vertical local-horizontal orbit frame, based on the combined ram measurements and magnetic field measurements, and provides the attitude information to a satellite that comprises the attitude sensor system. | 04-09-2015 |
20150120239 | SLOPE CALCULATION DEVICE - A slope calculation device basically includes at least one first detection sensor, a speed sensor, a data storage device and a control unit. The at least one first detection sensor detects at least one parameter related to a first energy inputted to a bicycle by a rider of the bicycle. The speed sensor detects a travel speed at which the bicycle is traveling. The data storage device stores a total weight of the bicycle and the rider. The control unit is programmed to determine the first energy based on the parameter detected by the first detection sensor, calculate a second energy based on the travel speed detected by the speed sensor and the total weight of the bicycle and the rider stored in the data storage device. The control unit is further programmed to calculate a slope based on the first energy and the second energy. | 04-30-2015 |
20150120240 | SLOPE CALCULATION DEVICE - A slope calculation device basically includes at least one first detection sensor, a speed sensor, a data storage unit and a control unit. The at least one first detection sensor detects at least one parameter related to a first energy inputted to a bicycle. The speed sensor detects a travel speed at which the bicycle is traveling. The data storage unit stores a total weight of the bicycle and the rider. The control unit is programmed to determine the first energy based on the parameter detected by the first detection sensor, calculate a second energy based on the travel speed detected by the speed sensor and the total weight of the bicycle and the rider stored in the data storage unit. The control unit is further programmed to calculate a slope based on the first energy and the second energy. | 04-30-2015 |
20150149114 | Monitoring Integrity of a Riser Pipe Network - Methods and systems are described for monitoring the integrity of a subsea pipeline network to transport the production fluid from a subsurface wellhead to surface facilities. More specifically, the described methods and systems are for monitoring the integrity of a riser pipe network and can include installing one or more inclinometers to the buoyancy tank and/or vertical riser structures. | 05-28-2015 |
20160082974 | APPARATUS AND METHOD OF ROAD SLOPE ESTIMATING BY USING GRAVITATIONAL ACCELERATION SENSOR - A method of road slope estimating by using a gravitational acceleration sensor includes determining whether a condition of estimating the road slope by using the gravitational acceleration sensor is satisfied; estimating the road slope by using the gravitational acceleration sensor and updating the road slope when a condition of estimating the road slope by the gravitational acceleration sensor is satisfied; comparing a change rate of the estimated road slope with a first predetermined value; comparing a difference between the estimated road slope and a filtered road slope with a second predetermined value when the change rate of the estimated road slope is greater than or equal to the first predetermined value; and filtering the estimated road slope by changing a coefficient of the filter when the difference between the estimated road slope and the filtered road slope is greater than or equal to the second predetermined value. | 03-24-2016 |