232 results about "Rotation sensor" patented technology

A coal bunker modeling method based on three-dimensional positioning and two-dimensional mapping. To improve the efficiency of bunker cleaning at the dock, sensors are used to obtain the internal information of the coal bunker. The three-dimensional lidar information and inertial measurement unit are used to perform real-time positioning on the push rake used for bunker cleaning operations. A fixed rotation sensor composed of a single-line radar and a DC servo motor is used to sense the coal bunker environment. The front-end positioning and serial port rotation angle are used as the basis for single-frame matching to obtain a complete point cloud inside the coal bunker. The superimposed point clouds are subjected to semantic fusion segmentation to classify the coal material point clouds, complete the outer boundary of the point clouds, fill the internal void point clouds, and calculate the volume of the coal material based on the three-dimensional grid point cloud of the coal material. The calculated information is fed back into the control logic of the upper computer to improve the efficiency of the entire push rake bunker cleaning operation.

The invention belongs to the technical field of coaxiality detection, and provides a motor shaft coaxiality detection device and method based on a contact displacement sensor. The detection device adopts a modular design, and is integrated with a shaft supporting and positioning system which can be magnetically attracted and locked in a sliding manner, a rotation driving system with magnetic force assistance, and a sensing measurement system with adjustable angle and height. During detection, a motor shaft to be detected is placed on the supporting bearing, and the measuring heads of the two contact type displacement sensors are in contact with the surfaces of different shaft sections of the motor shaft respectively; the driving system drives the shaft to rotate, and the sensor collects radial run-out data; and the data processing system adopts a two-channel difference algorithm to calculate the range of the radial deviation of the two measuring points in a circle of rotation, and the range is used as a coaxiality error. According to the invention, rapid, high-precision and low-cost detection of the coaxiality of the motor shaft is realized, the method is especially suitable for batch automatic application in a production field, and the method has the outstanding advantages of simple operation, strong adaptability and high efficiency.

A machine includes a rotational sensor configured to sense rotation of an upper frame of the machine relative to a lower frame of the machine. The machine also includes a three-dimensional position sensor spaced from an axis of rotation of the upper frame relative to the lower frame. The machine can also include a number of additional sensors including sensors to detect track movement, imaging sensors, ranging sensors, IMUs, linear displacement sensors and / or the like. A computing system receives the various inputs from the sensors and fuses the data to determine state information for the machine.

A sensor assembly includes a housing defining a chamber. A sensor unit is supported by the housing and extends vertically upward along an axis from the housing. The sensor unit includes a base and a sensor housing mounted to the base and rotatable relative to the base about the axis. The sensor unit includes a sensor. The sensor housing extends circumferentially around the sensor and defines a sensor chamber therebetween. A blower box is supported by the housing in the chamber. The blower box defines a blower chamber in fluid communication with the sensor chamber. A blower is disposed in the blower box.

The invention belongs to the field of mining drilling machines, and relates to an automatic drill rod conveying system with a drill rod detection function, which comprises a main manipulator, an auxiliary manipulator, a transfer mechanism and a drill rod conveying sensor group, the main manipulator comprises a main rotating joint, a main telescopic joint and a main clamping jaw assembly; the auxiliary manipulator is arranged on the auxiliary sliding rail of the drill rod box and comprises a lifting joint, an auxiliary rotating joint, an auxiliary telescopic joint and an auxiliary clamping jaw which are connected in sequence; the transfer mechanism comprises a drill rod transfer device, a rack and a rotary platform, and the drill rod transfer device is arranged between the rack and the rotary platform through an asynchronous rotating device; the drill rod conveying sensor group comprises a detection sensor mounted on the secondary manipulator; the judgment sensor is mounted on the drill rod transporter; and the rotation sensor is arranged on the main manipulator. Efficient automation from sensing to control in the drill rod conveying process is achieved, and powerful guarantee is provided for safety and efficiency in the complex operation environment.

There is provided methods and apparatus of encoding / decoding a point cloud captured by a set of sensors. The encoding method obtains a list of ordered points of the point cloud by ordering the points according to a lexicographic order based on azimuthal angles and sensor indices associated with points of the point cloud; obtains a next point following a current point in the list of ordered points and having an order index different of an order index of the current point, and obtains a number of duplicated points equals to a number of points following the current point that have an order index equals to the order index of the current point; encodes the number of duplicated points and encodes an order index difference representing a difference between the order index of the next point and the order index of the current point.

A power machine or excavator includes a swivel assembly coupling the upper frame portion to the lower frame portion, while providing accurate slew position measurement using a swivel sensor which is positioned to reduce measurement errors over a thermal range of operation of the power machine. The swivel assembly includes a swivel barrel configured to be attached to the lower frame portion of the power machine, and a swivel spool configured to be attached to the upper frame portion. The swivel sensor is positioned and configured to provide a sensor output indicative of a rotational position of the upper frame portion relative to the lower frame portion.

The invention relates to a rotation sensor (4) for a steering system (1) of a motor vehicle, comprising a magnet element (41) which can be mounted on a steering shaft (10) and which can be rotated about an axis (L), and two stator elements (42a, 42b) which are fixedly arranged coaxially with respect to the magnet element and are axially spaced apart from each other, the stator elements (42a, 42b) are operatively connected to at least one sensor element (6) via two flux conductors (5a, 5b), the flux conductors (5a, 5b) each having a converging section (51a, 51b) connected to the stator elements (42a, 42b), a coupling section (58a, 58b) connected to the converging section and a compensation section (52a, 52b), and the sensor element (6) is arranged between the two coupling sections (58a, 58b) which are axially opposite one another. In order to be able to achieve an optimized construction and to reduce the production effort, the invention proposes that the compensation sections (52a, 52b) of the two flux conductors (5a, 5b) are arranged in the axial direction without overlapping.

The invention belongs to the field of mining drilling machines, and relates to a drill rod conveying system suitable for full-section drilling and a control method thereof.The system comprises a main mechanical arm, an auxiliary mechanical arm, a transfer mechanism, a drill rod conveying sensor set and a rotation positioning sensor set; the main manipulator comprises a main rotating joint, a main telescopic joint and a main clamping jaw assembly; the auxiliary manipulator comprises a lifting joint, an auxiliary rotating joint, an auxiliary telescopic joint and an auxiliary clamping jaw which are connected in sequence; the transfer mechanism comprises a drill rod transfer device, a rack and a rotary platform, and the drill rod transfer device is arranged between the rack and the rotary platform through an asynchronous rotating device; the drill rod conveying sensor group comprises a detection sensor, a judgment sensor and a rotation sensor; and the rotary positioning sensor group comprises a transporter tilt angle sensor, a rack location sensor and a synchronous sensor. Efficient automation from sensing to control in the drill rod conveying process is achieved, and powerful guarantee is provided for safety and efficiency in the complex operation environment.

The present invention provides a lifting device with an improved ascending / descending body impact prevention function, the lifting device comprising a microcomputer which performs the functions of: storing a number of rotations count value of a rotation sensor when an ascending / descending body descends and touches the floor so that a lifting rope is in a non-loaded state or when a user sets a stop position; and reducing the rate of descent of the ascending / descending body before the ascending / descending body reaches the previously stored rotation amount count value during the next descent, thereby softening the impact when the ascending / descending body touches the floor.

The invention discloses a method and a system for calculating a vibrating position of a mechanical vibrating machine, and the method comprises the steps: accurately measuring the three-dimensional coordinate of the vibrating position through the multi-source sensing data of a rotation sensor, a tilt angle sensor, a pull rope sensor, a laser sensor and the like in combination with a trigonometric function coordinate analysis algorithm and rotating coordinate system conversion; meanwhile, the vibrating depth and the coordinates of any point of the vibrating rod can be calculated. According to the invention, the three-dimensional coordinate of the vibrating position can be calculated in real time and with high precision.

This invention provides an unattended gas valve control actuator, comprising an inverted L-shaped housing. The upper part of the longitudinal compartment of the housing houses a clutch device, and the lower part houses a drive motor. The transverse compartment houses a bridge gear and a valve stem sleeve for driving the gas valve stem. This invention adopts a side-drive structure, reducing the overall height of the actuator and making it easier to install in confined valve wells. The clutch mechanism allows for easy switching to manual operation with just a push-pull lever, enabling more convenient handling of system failures or other emergencies. The invention includes a rotation sensor that measures the number of rotations of the bridge gear to determine the valve's opening degree, ensuring precise valve control. Using a hydraulic motor as the drive motor eliminates the need for high-voltage, high-current input, preventing electrical sparks during operation and eliminating the risk of explosion, thus improving safety.

This bearing damage detection system comprises: a rotation sensor that detects rotation of a rolling bearing and outputs a rotation signal; a rotation fluctuation extraction unit that extracts rotation fluctuations of the rolling bearing from the rotation signal and generates a rotation fluctuation signal; a frequency analysis unit that performs frequency analysis on the waveform of the rotation fluctuation signal to find a frequency characteristic; a peak intensity calculation unit that finds a peak intensity corresponding to bearing damage from the frequency characteristic; and a damage detection unit that detects bearing damage of the rolling bearing on the basis of the peak intensity. The rotation fluctuation extraction unit finds the waveform of the rotation fluctuation signal from which various types of noise have been removed.

A reliable method for monitoring the wear of crimping tools. [Solution] A method for monitoring a crimping tool for sealing a container, comprising a crimping tool (8,9) and a monitoring device (20) for monitoring the crimping tool (8,9), wherein the monitoring device (20) is equipped with rotation sensors (21,22) that are signal-connected to the monitoring device (20), the rotation sensors enable the measurement of the rotation of the crimping tool (8,9), and the method monitors the crimping tool (8,9) by rotating the crimping tool (8,9) and measuring the time elapsed of the rotation of the crimping tool (8,9) using the rotation sensors (21,22).

A system for preventing shifting between a plurality of gear ratios in a mechanical gearset. An operating sensor detecting rotation of a moving component in the mechanical gearset, a shift solenoid controlling shifting among the plurality of gear ratios, and a microcontroller communicatively coupled to the shift solenoid and the operating sensor that prevents activation of the shift solenoid when rotation is detected by the rotation sensor.

Crawler crane comprising a pair of crawler tracks (6), a boom (10) which can be raised and lowered by means of a cylinder (33) and is rotatable about a vertical axis by means of a motor (31), wherein the crawler crane further comprises a rotation sensor (46) which is suitable for detecting a rotation angle of the boom (10) measured with respect to a direction of travel of the crawler tracks, and a pair of pressure sensors (44) which are suitable for detecting the differential pressure of the cylinder (33), wherein the crawler crane is further configured to only permit the rotation of the boom (10) if the differential pressure across the cylinder (33) detected by the sensors (44) is less than a predetermined maximum value which is dependent on the detected rotation angle of the boom (10).

The present invention provides a device that guides the driver of a construction vehicle so that they can objectively check the cleaning status without having to get out of the driver's seat, when using a vehicle mud-removal and cleaning device. [Solution] The vehicle mud-removal washing guide device 10 of the present invention comprises a rotation sensor 1 that measures the speed of a construction vehicle running on a group of rollers provided on a frame on which the front and rear tires of the construction vehicle are respectively placed, and a display device 2 that guides the washing state of the construction vehicle based on the measured speed. The display device outputs the washing state in a manner that can be visually recognized, and includes a light-emitting area composed of LED units, and guides the washing state by a bar graph meter in which the proportion of light emitted in the light-emitting area changes in a bar shape.

A vehicle includes: a driving source; a rotation sensor that detects a rotational speed of the driving source; control circuitry; and an actuator that operates the driving source. When the rotational speed of the driving source has exceeded a preset upper threshold, the control circuitry executes suppression control that suppressed an output power of the driving source in comparison with before the rotational speed of the driving source exceeds the upper threshold. In the suppression control, the control circuitry gives to the actuator a command that makes the output power of the driving source suppressed in comparison with before the suppression control is executed, in accordance with an excess degree set in relation to an excess time period that is a time period in which the rotational speed of the driving source has exceeded the upper threshold.

A bearing damage detection system includes a rotation sensor that detects rotation of a rolling bearing and outputs a rotation signal, a rotation fluctuation extraction section that extracts rotation fluctuation of the rolling bearing from the rotation signal and generates a rotation fluctuation signal, a frequency analysis section that performs frequency analysis on a waveform of the rotation fluctuation signal and derives a frequency characteristic, a peak intensity calculation section that derives a peak intensity corresponding to bearing damage from the frequency characteristic, and a damage detection section that detects bearing damage of the rolling bearing based on the peak intensity. The rotation fluctuation extraction section derives a waveform of the rotation fluctuation signal from which various noises are removed.

A method of running a tubular string into a well can include measuring a threaded connection parameter using a sensor, thereby producing sensor measurements, measuring the threaded connection parameter using another sensor, thereby producing sensor measurements, and performing data fusion on the sensor measurements, thereby producing fused sensor measurements. An apparatus for running a tubular string into a well can include a rotation sensor configured to measure rotation of a tubular and produce rotation measurements, another rotation sensor configured to measure the rotation of the tubular and produce rotation measurements, and a control system including a data fusion module configured to determine fused rotation measurements from the sensed rotation measurements.

An exemplary rotary actuator includes: a housing having a chamber therein; an output shaft disposed in the chamber and configured to rotate within the housing when a fluid flow is provided within the housing; a cam coupled to the output shaft and configured for rotation with the output shaft; and a rotation sensor mounted to the housing, where the rotation sensor interacts with the cam such that the rotation sensor provides sensor information indicative of rotational positions of the cam and the output shaft.

The present invention provides a hybrid power system capable of calculating more appropriate required torques when the input factors available for calculating various required torques are limited. The hybrid power system (2) includes at least one of: a rotation sensor (31) for detecting the rotational speed of an engine (3); an accelerator opening sensor (61) for detecting the accelerator opening degree; and a speed indicator (62) for sending a speed signal indicating a constant rotational speed to the engine (3); and a control unit (5) for controlling the operation of the engine (3). The control unit (5) calculates a torque determination factor for determining the system required torque of the hybrid power system (2) based on at least one of the accelerator opening degree detected by the accelerator opening sensor (61) and the speed signal sent by the speed indicator (62), and performs control to calculate the system required torque based on the rotational speed detected by the rotation sensor (31) and the calculated torque determination factor.

A handle (100) for attachment to a locking mechanism of a window (300) or a door, and movable between first and second positions to engage and disengage the locking mechanism. The handle (100) comprises a handle body (102) configured, when attached to the locking mechanism, to be rotatable about a first axis (104) to move between the first and second positions, and to be rotatable about a second axis (108) perpendicular to the first axis (104), a sensor (106) coupled to the handle body (102) and configured to collect first sensor data and second sensor data indicative of rotation of the handle body (102) about the first axis (104) and the second axis (108) respectively, and a controller (122) configured to determine a state of the handle (100) based on the first sensor data and the second sensor data, for determining a window or door status when the handle (100) is attached to the locking mechanism.

A ball joint contains a body and a pin having a first threaded end and a second spherical end which is rotatably arranged within a seat of the body. The pin cooperates with a first spherical-cap-shaped element inserted within a further seat having a corresponding shape of a second spherical-cap-shaped element cooperating with a covering element to close the spherical end of the pin within the body. The second spherical end of the pin and the first and second spherical-cap-shaped elements include pairs of recesses and ridges in the contact areas for reciprocally compenetrating, the pairs of recesses and ridges being arranged at 90° to each other to allow rotation of the pin along all axes in the body. An angular movement sensor integral with the body of the joint cooperates with the second spherical-cap-shaped element to detect rotation of the pin.

A radio remote-control apparatus having energy harvesting and rotation sensing functions, comprising: a motor (1), an energy harvester (2), a rotation sensor (3) and a radio transmitter (4), wherein a stator of the motor (1) at least includes two windings; an input of the energy harvester (2) and an input of the rotation sensor (3) are both connected to the windings; an input of the radio transmitter (4) is connected to an output of the rotation sensor (3); when a circular dial (5) connected to a rotating shaft of the motor (1) is rotated, the motor (1) serves as a generator, both the windings generate alternating-current signals and output same to the energy harvester (2), and the energy harvester (2) provides a power supply to the rotation sensor (3) and the radio transmitter (4); in addition, the amount of rotation and direction of rotation of the circular dial (5) are also reflected in phase changes of the signals output by the windings, and on the basis of the phase changes of the signals output by the windings, the rotation sensor (3) generates a control signal, which is modulated and transmitted by the radio transmitter (4). The problem of it being difficult to realize self-supply of electric energy in rotation-sensing radio control is effectively solved, and a low-cost and efficient rotation remote-control mode is provided.

An example rotary actuator includes: a housing having a cavity therein; an output shaft disposed in the cavity and configured to rotate within the housing upon providing fluid flow within the housing; a cam coupled to the output shaft and configured to rotate therewith; and a rotary′ sensor mounted to the housing, wherein the rotary′ sensor interacts with the cam such that the rotary sensor provides sensor information indicating a rotary′ position of the cam and the output shaft.

In work vehicles, this system allows for both steering by an operator on board and steering from a remote location, and enables steering with the same feel as when operating from a remote location. [Solution] The vehicle comprises a vehicle body (2) that is supported by wheels (3) and capable of moving, a steering mechanism (32) that steers the wheels (3), a vehicle-side control device (31) that controls the drive operation of the steering mechanism (32), and a steering unit (20) that can be attached to and detached from the vehicle body (2). The steering unit (20) includes a rotation sensor (112) that detects the direction of rotation and the angular velocity of rotation, and a communication means (100) that wirelessly transmits information based on the detection signal of the rotation sensor (112) to the vehicle-side control device (31). As a result, the wheels can be steered using the steering unit regardless of whether the steering unit is attached to the vehicle body or detached from the vehicle body.

The utility model relates to the technical field of hand-muscle developers, and discloses an athletic training partner hand-muscle developer which comprises an elliptical ring body, a groove is formed in the front side of the top end of the elliptical ring body, a protective shell is fixedly connected to the interior of the groove, a laser receiver is fixedly connected to the right side of the interior of the protective shell, and the laser receiver is fixedly connected to the right side of the interior of the protective shell. An infrared emitter is fixedly connected to the left side of the interior of the protective shell, an abutting rod is slidably connected to the front side of the middle of the oval ring body, a sliding plate is fixedly connected to the front side of the abutting rod, the abutting rod is sleeved with a spring, and a pressure sensor is fixedly connected to the rear side of the abutting rod; the top end of the front side of the pressure sensor is fixedly connected with a telescopic rod. According to the utility model, an athlete is helped to track and analyze the extrusion times and the grip strength, data is transmitted to the intelligent terminal for recording through the central processing display, the athlete is helped to train and adjust, the induction effect of the rotation sensor on the rotation amplitude of the positioning rod can be enhanced, and the data accuracy is improved.

This application relates to a rotational sensor for an injection device, and more particularly to a rotational sensor for an injection device, the rotational sensor comprising: - a rotatable element configured for mechanical engagement with a ratchet mechanism, the rotatable element including an outer rim and a hub and configured to transmit torque between the outer rim and the hub; - at least one sensor attached to the rotatable element and configured to measure at least one of mechanical force, mechanical pressure, or mechanical strain at a portion of the rotatable element during rotation of the rotatable element; - a processor connected to the at least one sensor and configured to calculate a rotation angle of the rotatable element based on the sensor output of the at least one sensor.

The present invention relates to a bearing equipped with a rotary sensor and having a further reduced axial dimension, in which a magnet in a magnetic ring and a magnetic sensor are axially opposite each other at a position on an axial side of a rolling bearing, the magnet being arranged on an axial side with respect to the magnetic sensor. An outer ring (4), which is a bearing ring of an inner ring (3) and the outer ring (4) of a rolling bearing (1), has a side surface (9a) arranged at one of two axial ends of the bearing ring, which define the width of the outer ring (4), and a recess (18) that extends from the side surface (9a) towards the other of the two axial ends. The magnetic sensor (15) is attached to the recess (18).