12results about How to "Improve position detection accuracy" patented technology

The utility model relates to a position identification device and a detection system for detecting the absolute position of an elevator car, belongs to the technical field of elevator equipment, and solves the problems of low precision, high environmental requirements, high cost and the like in the conventional method for detecting the absolute position of the elevator car. The detection system comprises a position identification device and an identification recognition device, the position identification device comprises magnetic strips installed in an elevator shaft in a segmented mode, and an upper door area, an upper floor absolute coding area, a flat layer position induction area, a lower floor absolute coding area and a lower door area are sequentially distributed on each magnetic strip. The identification recognition device reads sensing data of the Hall sensors corresponding to all the areas of the magnetic strip and outputs corresponding signals to an elevator control system. According to the utility model, the overall length of the magnetic strip is shortened, the cost is low, the absolute position detector is suitable for absolute position detection of elevator cars in high-rise and super high-rise buildings, the service life is long, the detection precision is high, the induction distance is large, the anti-interference performance is strong, and the absolute position detector is not easily influenced by ambient light intensity, cleanliness and magnetic field.

The application relates to a high-precision absolute-value magnetic grating device and a mover position detection method. The high-precision absolute-value magnetic grating device comprises a mover, a base and a Hall chip fixed on the base. A plurality of Hall chips form a Hall array, and the Hall array is arranged in two rows. One row of the Hall array is a large-number magnetic induction Hall array, and the other row of the Hall array is a small-number magnetic induction Hall array. The mover is respectively provided with a large-number magnetic head and a small-number magnetic head corresponding to the large-number magnetic induction Hall array and the small-number magnetic induction Hall array. The sensing device is fixed, and the moving part does not need to be provided with a power line and a signal line, so that the reliability of long-distance position measurement is improved. Through the double-row or even multi-row Hall sensing array arrangement form, the measurement principle similar to that of a vernier caliper is adopted, and a large-number and small-number detection combination mode is adopted, so that long-distance position detection can be realized, and the position detection precision is improved.

The present invention relates to the technical field of servo motor position detection, and in particular to a servo motor and a servo motor position detection method. The method comprises: installing a choke ring, a multi-pole magnetic ring, and a circular magnetic sensor detection unit in the motor; applying an AC sinusoidal voltage excitation to the circular magnetic sensor detection unit; sensing the sinusoidal change of the magnetic field through the circular magnetic sensor detection unit, and outputting a standing wave signal; superimposing the standing wave signals output by each circular magnetic sensor detection unit to obtain a traveling wave signal; and detecting the traveling wave signal through a time-grid signal processing system to determine the position of the motor. The present invention can increase the output signal, improve the position detection accuracy and measurement sensitivity of the servo motor; reduce the harmonic components of the output signal, and improve the measurement accuracy; directly add the output electrical signals of each magnetic sensor, thereby avoiding the problem that a multiplier is required in the previous motor position detection method based on the time-grid technology, and the more probes there are, the more complicated the multiplication circuit will be.

The utility model relates to the field of automobile sensor, concretely relates to a built -in sensor of automobile tail door electric support rod, including code disc, fixed connection is in the motor shaft of electric cylinder or the input shaft of speed reducer and rotates with it, photoelectric sensor contains light emitting element and light receiving element, the code disc includes the bottom plate and the even number of protrusions established on the bottom plate, the protrusions are uniformly distributed on the same circumference, and form the code way between the four protrusions of adjacent two diameter directions, the moving path of protrusion is located between light emitting element and light receiving element, generates pulse signal through the obstruction / transmission light path, in the application scene such as electric tail door requiring low -speed smooth operation and high -precision position control, can guarantee control precision and stability.

A camera module according to an embodiment includes: a position sensor portion including a first sensor unit and a second sensor unit; and a control section connected to the first sensor unit and the second sensor unit, and obtaining position information based on output signals from the first sensor unit and the second sensor unit, in which the first sensor unit includes a plurality of first input terminals and a plurality of first output terminals, and the second sensor unit includes a plurality of second input terminals and a plurality of second output terminals. The second sensor unit includes a plurality of second input terminals and a plurality of second output terminals, and the control portion is individually connected to the plurality of first output terminals and the plurality of second output terminals, and obtains position information by means of selective combination of output signals from the first sensor unit and the second sensor unit.

This invention relates to the field of control system data processing technology, and in particular to an intelligent cleaning system and its working method that employs a robotic arm for cleaning and drying. The system includes a visual data acquisition module that acquires raw image data; an environmental adaptation processing module that outputs an optimized image matrix; a feature recognition module that extracts part contour and position features from the optimized image matrix and outputs coordinate and posture information; a control decision module that fuses the feature information with preset cleaning parameters to generate robotic arm motion commands; and a robotic arm execution module that drives the spray gun to complete the cleaning action and feeds back the position data acquired by the joint encoder to the feature recognition module to form a closed-loop control. This invention compensates for low-light conditions and suppresses stain noise through environmental adaptation processing, enhances robustness through feature recognition combined with a confidence mechanism, and corrects recognition deviations through feedback loops, ultimately achieving accurate detection of part positions and complete cleaning, thus solving the problems of missed cleaning and uneven cleaning.

The present invention provides a mobile object detection device (4) that estimates a tracking trajectory of a mobile object corresponding to a plurality of observation points based on observation point positions represented by a plurality of observation point information acquired at different times. The mobile object detection device stores a maximum receiving power based on the receiving powers represented by the plurality of observation point information. The mobile object detection device determines whether a receiving power difference obtained by subtracting the receiving power represented by the acquired observation point information from the maximum receiving power is greater than a reduction judgment value. The mobile object detection device determines whether the receiving power represented by the acquired observation point information is below an identification judgment value. When the mobile object detection device determines that the receiving power difference is greater than the reduction judgment value and the receiving power is below the identification judgment value, the mobile object detection device suppresses the degree of following the observation point in the tracking trajectory.

The application discloses a high-precision straight stroke electric actuator with double-position positioning and relates to the technical field of electric actuators. A Hall sensor assembly is arranged corresponding to the rotor magnet steel of a driving motor; an output gear is fixedly arranged on a center rod and rotates synchronously; a first encoding gear is engaged with the output gear; a second encoding gear is engaged with the first encoding gear and has a tooth number difference with the first encoding gear; two magnetic angle sensors respectively sense the rotation angles of corresponding magnets, and the absolute rotation position of the center rod is calculated in combination with the tooth number difference. The application constructs a double-position positioning system, guarantees the dynamic response speed of the motor, eliminates the position error caused by the gap and wear of the speed reduction mechanism, improves the control precision and stability of the actuator, realizes the position information keeping without power supply or light source in the power-off state, and directly reads the current absolute position without recalibration after secondary power-on.

The present invention comprises: a substrate having a first surface and a second surface on the side opposite to the first surface; a first electrode penetrating the substrate and electrically connecting the first surface side with the second surface side, and being exposed on the first surface side; a second electrode adjacent to the first electrode in a first direction, penetrating the substrate and electrically connecting the first surface side with the second surface side, and being exposed on the first surface side; a third electrode adjacent to the first electrode in a second direction intersecting the first direction, penetrating the substrate and electrically connecting the first surface side with the second surface side, and being exposed on the first surface side; a fourth electrode adjacent to the third electrode in the first direction and adjacent to the second electrode in the second direction, penetrating the substrate and electrically connecting the first surface side with the second surface side, and being exposed on the first surface side; and a fifth electrode arranged on the first surface side, disposed between the first electrode and the second electrode, between the second electrode and the third electrode, between the third electrode and the fourth electrode, and between the fourth electrode and the first electrode, and disposed separately from each of the first electrode, the second electrode, the third electrode, and the fourth electrode.

A fastening tool is provided. The fastening tool has a motor, an anvil, a pin holding portion, a magnet, a first magnetic sensor, a second magnetic sensor, and a control device. The magnet is arranged in a manner that an N pole and an S pole are arranged in a front-rear direction, and is moved in the front-rear direction integrally with the pin holding portion. The second magnetic sensor is arranged at a position further to the rear than the first magnetic sensor. The control device moves the pin holding portion from an initial position to a stop position to the rear based on a detection result of the second magnetic sensor, and moves the pin holding portion from the stop position to the initial position to the front based on a detection result of the first magnetic sensor. The first magnetic sensor and the second magnetic sensor are single-pole detection type sensors configured to detect the same prescribed magnetic pole of the magnet, and are arranged such that an orientation of a first detection surface with respect to a movement axis of the magnet is opposite to an orientation of a second detection surface with respect to the movement axis of the magnet. Accordingly, detection accuracy of the first magnetic sensor and the second magnetic sensor can be improved.

The invention discloses a wafer combination carrier, and relates to the technical field of semiconductor manufacturing, the wafer combination carrier comprises a carrier upper bottom plate and a carrier lower bottom plate, a sealing strip is fixedly installed on the inner wall of the carrier lower bottom plate, a plurality of magnets are fixedly embedded in the top surface of the carrier upper bottom plate, the top surface of the carrier lower bottom plate is attracted with the embedded magnets, and the sealing strip is fixedly installed on the inner wall of the carrier lower bottom plate. A flaky product is arranged in the carrier lower bottom plate, a plurality of positioning pins are fixedly mounted on the bottom surface of the carrier upper bottom plate, a plurality of insertion holes are formed in the top surface of the carrier lower bottom plate, and the positioning pins are matched with the insertion holes; according to the wafer carrier, the detection assemblies are combined with the adjusting mechanism, the automation and intelligence level of the wafer carrier is improved, the position detection precision and the adjusting accuracy are remarkably improved, and higher production efficiency and sheet product quality are brought to the wafer manufacturing industry.

The present disclosure provides a system for managing a plurality of warning devices associated with an emergency vehicle, comprising: a first warning device for a first emergency vehicle, the first warning device having a first plurality of warning functions controlled by a first controller, the first controller communicating over a wireless network via a first transceiver; a first sensor for providing a position of the first emergency vehicle; a second warning device for a second emergency vehicle, the second warning device having a second plurality of warning functions controlled by a second controller, the second controller communicating over the wireless network via a second transceiver; a second sensor for providing a position of the second emergency vehicle; wherein the first transceiver and the second transceiver transmit data to each other through the wireless network, so as to indicate the relative position of the first emergency vehicle and the second emergency vehicle; and each of the first controller and the second controller controls a corresponding warning function according to a relative position of the first emergency vehicle and the second emergency vehicle.