380results about How to "Reduce positioning accuracy" patented technology

A transducer is provided for use in a position sensor which senses the position of two relatively movable members. In one form, the transducer has a plurality of sensor windings having a number of loops arranged in succession and connected in series so that signals induced in adjacent loops by a common electromagnetic field oppose each other and an excitation winding having at least one loop super-imposed on but electrically isolated from the loops of the sensor windings.

An image display unit and a method of producing the image display unit, wherein the image display unit includes an array of a plurality of light emitting devices for displaying an image, and wherein the method of producing the image display unit employs, for example, a space expanding transfer, whereby a first transfer step includes transferring the devices arrayed on a first substrate to a temporary holding member such that the devices are spaced from each other with a pitch larger than a pitch of the devices arrayed on the first substrate, a second holding step includes holding the devices on the temporary holding member, and a third transfer step includes transferring the devices held on the temporary holding member onto a second board such that the devices are spaced from each other with a pitch larger than the pitch of the devices held on the temporary holding member.

A autonomous navigation system of a navigational satellite based on X radial pulse satellite includes: an X radial detector, an atomic clock group on the satellite, a planet of our solar system parameter database, an X radial pulsar module and a characteristic parameter database, a computer on the satellite, a strap-down inertial navigation system SINS and an autonomous navigation algorithm module library; in the autonomous navigation method, the X radial photons radiated from the pulsar are used as the input of the external information; the pulse arrival time TOA and the angular position information are obtained; data is processed through a autonomous navigation filter; and the navigational parameters such as the position, the speed, the time and the pose of the navigational satellite; the navigational telegraph text and the control command are generated independently, and the independent running of the navigational satellite is realized. The present invention has the advantages of providing a long time and a high degree of accuracy autonomous navigation, and providing the fault-tolerance capacity of the autonomous navigation information processing. The autonomous navigation system is also be adequate for the high degree of accuracy autonomous navigation of the near earth orbit, the deep space, the interplanetary flight space vehicle, the a celestial body lander without thickset atmosphere and the surface peripatetic machine.

A power transmission mechanism for an automatic transmission, configured to establish seven or more forward speeds and one reverse speed. The power transmission mechanism includes four simple planetary gears, three connection members interconnecting two of the rotating members of the planetary gears, three clutches selectively connectable between two of the rotating members, and four brakes each operable to hold selectively against rotation one of the rotating members.

A tufting machine capable of producing individual articles of athletic turf bearing precise graphic patterns is disclosed. The machine includes a support frame to which a backing material is statically held, a tufting frame that spans above and below the backing and is computer-controlled to travel along the support frame, a yarn-inserting needle carriage disposed above the backing along the tufting frame and a yarn-catching looper carriage disposed below the backing along the tufting frame. The carriages are computer-controlled to asynchronously shift relative to each other as may be necessary for their individual yarn-inserting components and yarn-catching components to cooperate.

The invention provides a whole network public opinion monitoring system, data sources of the system comprise main ISPs such as telecommunication, Netcom, CERNET, Unicom, Railcom and Great Wall Broadband, for the storage capacity, storing is conducted on obtained data, the storage cycle of log data is one year, and the storage cycle of text content data is one year; the system comprises construction of a network communication platform, a wireless monitoring system, remote network connection and data sharing, a service monitoring system and a mass information processing system; local funding resources are fully utilized, the maneuverability is strong, export information of place layers can be intercepted, information of direction communication between places can be obtained, the particle size which is monitored is finer, and the locating accuracy is higher. The information in and out of one place can be completely intercepted and recovered, the problem that the information is intercepted incompletely due to remote load balancing does not exist, the investment in each system is smaller, the design is novel, and the whole network public opinion monitoring system is a good design scheme, has a good prospect for being popularized in the market and is good in sensory property.

It is ultra-fine silicon pad position system with balance damping apparatus, which uses conservation of momentum principle and put the silicon pad supporting apparatus and its guide apparatus on a balance block with X, Y freedom degree supported by a float axis. When the silicon supporting apparatus moves along one direction, the balance block moves oppositely and eliminates the vibration caused by move reaction. The system also has a momentum wheel system used to eliminate the vibration caused by the momentum distance non-conservation in the moving surface of the silicon pad supporting apparatus. The whole system is supported by three air elastic spring and absorbs the remaining vibration of rest three freedom degrees and further improves the moving accuracy of the silicon pad position system.

The light emitting layers and the electron transporting layers of R pixels, G pixels, and B pixels are formed to have a stripe shape extending in the column direction. The red light emitting layer and the electron transporting layer in R pixels are formed to be continuous layers using the same mask in a first vapor deposition chamber, the green light emitting layer and the electron transporting layer of G pixels are formed to be continuous layers using the same mask in a second vapor deposition chamber, and the blue-white light emitting layer and the electron transporting layer of B pixels are formed to be continuous layers using the same mask in a third vapor deposition chamber.

An appropriate indoor / outdoor decision is made for a mobile communication terminal in accordance with a purpose of selection of a positioning method or the like. A positioning server 10 is an indoor / outdoor decision apparatus for making an indoor / outdoor decision on whether a mobile communication terminal 20 is located indoors or outdoors, which has: a communication information acquiring unit 11 which acquires communication information about wireless communication at the mobile communication terminal 20; an environment information acquiring unit 12 which acquires environment information indicative of an environment associated with the mobile communication terminal 20; a criterion setting unit 13 which sets a criterion for the indoor / outdoor decision according to the environment information; and a deciding unit 14 which makes the indoor / outdoor decision with reference to the communication information on the basis of the set criterion.

The invention discloses an indoor robot positioning navigation method and device. The method comprises using a camera on a robot to shoot an image containing a calibration plate positioned above the robot; using an image processing technology to recognize the calibration plate in the image, determining a current position and a current deviation angle of the robot according to the calibration plate in the image and known coordinates of the calibration plate, and positioning absolute positions of the robot; by taking the current position and the current deviation angle as a reference, navigating the robot by adopting an inertia navigation manner. By using the invention, problems of low positioning precision, high cost, inconvenient use and narrow use range of the existing positioning navigation method are solved.

A screw portion is provided on an image sensing unit, a screw hole portion to be engaged with the screw portion is provided on an optical path delimiter, and the screw portion and the screw hole portion are engaged together to thereby fix the image sensing unit and the optical path delimiter so that a lens barrel of the optical path delimiter is in contact with a transparent lid bonded to a surface of a solid-state image sensor. The solid-state image sensor, the transparent lid, a DSP, a wiring board and the like are sealed by a sealing portion made of a resin. Even when distortion occurs due to warpage, flexure or the like on the board where the solid-state image sensor is disposed, the accuracy of the positioning of the lens with respect to a pixel area of the solid-state image sensor is never decreased, it can be prevented that the solid-state image sensor or a signal processor is damaged by an external shock, and the optical device module is easily fabricated.

A positioning control device includes a GPS hardware control unit that makes GPS determine a current location at different positioning accuracies, and a positioning request management unit that makes the GPS hardware control unit carry out positioning in response to a positioning request from an application according to a positioning accuracy specified in the positioning request, acquires the positioning result, and returns the acquired positioning result to the application of the request origin. In a case where a positioning accuracy of a new positioning request is equal to or less than a positioning accuracy of a latest positioning result, the positioning request management unit reuses the latest positioning result and returns the latest positioning result in response to the new positioning request.

A method and apparatus for using satellite positioning systems to more precisely locate the position of a portion of an attachment on an earthmoving machine is disclosed. More specifically, satellite positioning system antennas are mounted to an arm or other point relative to the arm of an illustrative excavator. A reference point relative to these antennas is used to determine the precise location of a portion of an attachment to the excavator, such as the prongs of a bucket. In one embodiment, an angle sensor or inclinometer is used to ascertain the position of the prongs when the bucket is scooped. In another embodiment, an angle sensor or inclinometer is used to measure the tilt of the body of the excavator, such as would occur when the excavator is resting on a sloped surface.

The invention relates to a high-speed stacking machine for light material boxes, in particular to a high-speed stacking machine for light material boxes used for intensive storage of an elevated stereoscopic warehouse. The high-speed stacking machine for light material boxes is characterized by comprising a running device, a lifting mechanism driven by a synchronous belt, a telescopic fork claw shifting mechanism and a material box transferring mechanism, wherein the running device is composed of an upper set of synchronous belt driving mechanism and a lower set of synchronous belt driving mechanism, the running device and the lifting mechanism are arranged on a running framework, and the telescopic fork claw shifting mechanism and the material box transferring mechanism are fixed on a lifting platform of the lifting mechanism. A traditional stacking machine can only transfer one material box every time and is low in efficiency, and a fork of the traditionally stacking machine is large and heavy due to the fact that the material boxes need to be lifted and the gravity of the material boxes needs to be overcome through the commodity taking method. Compared with the traditional stacking machine, the high-speed stacking machine for light material boxes has the advantages of being high in operation speed, high in positioning accuracy, stable in operation, small in noise, high in efficiency, small in size and the like.

The invention relates to an entire deformation detection system of a subway tunnel and belongs to the field of a tunnel engineering monitoring technology. The system integrally comprises a plurality of instrument stations distributed on the inner wall of a tunnel and stop-level monitoring systems in tunnel stops, image acquisition terminals in all the instrument stations are connected into a network through an RS485 bus and connected with monitoring computers in the stop-level monitoring systems, so that coordinate displacement change information of adjacent instrument stations, which is acquired and processed by the image acquisition terminals, can be sent to the stop-level monitoring systems and tunnel deformation conditions between two stops are summarized and analyzed by the monitoring computers integrally. In the invention, a network sensor technology and an image identification technology are used for the online real-time deformation monitoring of operating subway tunnels for the first time, the deformation condition of the tunnels can be analyzed according to tunnel deformation data, and disasters caused by serious deformation conditions of the tunnels can be alarmed in time.

The invention provides a tail end executor of a fragrant pear picking robot, and a picking method. The tail end executor comprises a manipulator butt joint disc, a shell of a motor A and four knife rests, wherein the manipulator butt joint disc is in butt joint with a robot mechanical arm, the shell of the motor A is connected with the manipulator butt joint disc and is positioned in a transmission mechanism, and the four knife rests are connected with connecting rods of the transmission mechanism and an installation frame. The method comprises the following steps of accessing points by usinga camera, carrying out fixation by using a sucking disc, carrying out cutting by utilizing arc-shaped blades, withdrawing the mechanical arm to release fragrant pears, and the like. According to the invention, shearing efficiency is improved, time consumption for carrying out image recognition and segmentation on fruit contours and fruit stems by a sensing mechanism is reduced, precision quality of picking operation is guaranteed, picking difficulty is lowered, and operation efficiency is improved

The invention discloses an RSS and CSI integrated indoor positioning method based on a WiFi signal, and the method comprises the steps: collecting CSI and RSS information of reference points which comprises reference coordinates and WiFi signal characteristic value fingerprint characteristic data, carrying out the preprocessing of the fingerprint characteristic data, and building a fingerprint database; collecting fingerprint characteristics of a test point, and roughly estimating the position based on a kNN algorithm according to the RSS information in the fingerprint database; roughly estimating the test coordinates of the test point, calculating the Euclidean distance between the test coordinates and the reference coordinates according to a rough estimation result, arranging the Euclidean distance from small to large, and selecting and screening the reference points according to a set radius; constructing a sub-fingerprint database from the screened reference points selected according to the rough estimation result; calculating the similarity between the fingerprint measurement value of the test point and the sub-fingerprint database, and calculating the weight according to thefingerprint characteristics of the test point, the sub-fingerprint database and the similarity; and accurately estimating the position coordinates of the test point through a weighted average method.Positioning errors are reduced, and positioning precision is improved.

A rotor rotable about a rotary axis is magnetized so as to have a plurality of poles along a circumferential direction thereof. Stator yokes each of which has a plurality of pole portions facing an outer circumferential face of the rotor is provided. An exciting coil is wound on the pole portions. Each of the stator yokes is made of a sheet of silicon steel having a thickness of 0.7 mm.

The invention discloses a position detecting system for the edge of a winding-up H-shaped wheel of a wire drawing machine and a control method thereof. The method comprises the following steps that: (1) two extreme positions are calibrated; in the process that a controller adopts a motor to drive a bracket to move on a lead screw, the controller acquires distances from displacement sensors to theinner edge of the H-shaped wheel by the two displacement sensors and calibrates the two extreme positions according to the distances; angle values of encoders corresponding to the two extreme positions are acquired; and (2) the bracket is controlled to do reciprocating movement between the two extreme positions, and the controller drives the bracket to move along the lead screw by the motor, and controls the motor to rotate reversely when the bracket reaches the extreme positions, so that the purpose that the bracket moves between the two extreme positions in a reciprocating manner till the wire arranging procedure on the H-shaped wheel is finished. The position detecting system has the characteristics of high detection accuracy and easiness in implementation and the like and can effectively avoid the phenomenon of wire stacking at the edge of the H-shaped wheel.

An apparatus and a method for finding to find positional relationships and geometrical changes of at least one rotating part attached to or forming part of a machine when said part is in a rotating mode, said changes of the part caused by its state of production and use, to determine any locations on said rotating part which exhibit contaminants, and to subsequently remove or compensate effects of such contaminants present on the rotating part.

A tufting machine capable of producing individual articles of athletic turf bearing precise graphic patterns is disclosed. The machine includes a support frame to which a backing material is statically held, a tufting frame that spans above and below the backing and is computer-controlled to travel along the support frame, a yarn-inserting needle carriage disposed above the backing along the tufting frame and a yarn-catching looper carriage disposed below the backing along the tufting frame. The carriages are computer-controlled to asynchronously shift relative to each other as may be necessary for their individual yarn-inserting components and yarn-catching components to cooperate

The invention provides an underground coal mine unidimensional positioning method and system based on a wireless sensor network. According to the undimensional positioning method, a roadway is divided into a plurality of continuous non-overlapping rectangular positioning units with equal long sides, and deployment reference nodes are non-symmetrically arranged so as to record information of each rectangular positioning unit; each reference node utilizes periodic broadcasting signals of other adjacent reference nodes to update a corresponding parameter in a reference node data packet; a mobile node is used for filtering and sequencing the reference node data packet, and recording the IDs (Identifications) of adjacent mobile nodes; and the mobile nodes are positioned through calculation, sequencing and size comparison of the reference node data packet, the recorded IDs of the adjacent mobile nodes and the database information. The underground coal mine unidimensional positioning system comprises a plurality of wireless sensor sub-networks deployed in the roadway, a central switch arranged on the ground, and a safety monitoring and information management network. The underground coal mine unidimensional positioning method and system based on the wireless sensor network, provided by the invention, have the advantages of high positioning accuracy, low cost, simple system structure and low power consumption, and can meet the specific requirements of operating environment and security of the underground mine coal.

The invention discloses a sensor network indoor fingerprint positioning method based on matrix completion is applicable to the robust indoor positioning method of the wireless sensor network WSN. The sensor network indoor fingerprint positioning method disclosed by the invention comprises steps of utilizing a matrix completion theory to recover a complete fingerprint database by only sampling part of signal fingerprints through utilizing the low-rank property of a fingerprint matrix, adopting a classic KNN algorithm to perform object positioning of an online phase after the fingerprint database is constructed, in the process of the fingerprint matrix complementation and for effectively eliminating the outlier noise and the Gauss noise contained by the signal fingerprint, respectively introducing an L1 norm regularized item and an F norm regularized item, modeling a fingerprint data recovery question into a norm regularized matrix complementation question and solving the question through an alternative direction mutiplier method algorithm The sensor network indoor fingerprint positioning method based on matrix completion can effectively reduce the workload of the information fingerprint database construction and can acquire positioning precision which is higher than the positioning precision obtained from the same kind method under various noise conditions.

A method of polishing the double sides of a plurality of works simultaneously by rotating a plurality of carriers between upper and lower rotating surface plates, comprising the steps of forming the works (400) integrally with the carriers (500) on the outside of a polishing device main body (110), feeding the works (400) onto a rotating surface plate (111) on the underside of the polishing device main body (110) with the works formed integrally with the carriers (500), injecting liquid such as water from the upper side rotating surface plate when the upper side rotating surface plate is raised after the double sides are polished, holding the plurality of works (400) on the lower side rotating surface plate (111) after the double sides are polished, enabling the works (400) to be discharged automatically from the lower side rotating surface plate (111), providing a brush storage part (180) and a dresser storage part (190) near the polishing device main body (110), and frequently treating a polishing cloth installed on the opposed surfaces of the upper and lower rotating surface plates with a brush and a dresser.

An inductive position detector (IPD) for stylus position measurement in a scanning probe comprises a coil board configuration located along a central axis in the probe with a motion volume extending on opposite sides of the coil board configuration. The coil board configuration includes N top rotary sensing coils (RSCs) and a top axial sensing coil configuration (ASCC), and N bottom RSCs and a bottom ASCC. A pair of stylus-coupled conductive disruptors move along Z (axial) and X-Y (rotary) directions in the motion volume. A generating coil (GC) of the coil board configuration generates a changing magnetic flux (e.g., encompassing all or at least part of the disruptors), and coil signals indicate the disruptors and / or stylus positions. Areas of the conductive disruptors may be larger than an area of the generating coil in some implementations, and the conductive disruptors may each comprise a plurality of concentric conductive loops, spirals, etc.

A multi-coaxial cable assembly of the present invention includes a multi-coaxial cable in which a plurality of coaxial cables having insulators, external conductors, and jackets on an outer periphery of center conductors are arranged in parallel; inclined cross sections formed on the end part of the multi-coaxial cable in such a manner as exposing the center conductors and the external conductors of the coaxial cables; and a wiring board or a connector having a wiring pattern to which the center conductors and the external conductors of the coaxial cables exposed on the inclined cross sections are directly connected.

An operation command for constructing compensation data is generated in a control device, and measurement data obtained from an external length measuring device is input to an input unit. The measurement data is compared with an estimated position in a control device of a cylinder servo motor, and errors between them is stored in a compensation memory. In addition, in normal operation, the external length measuring device is removed. A movement command is input to the input unit and compensated using the error stored in the compensation memory, so that the estimated error is deleted in the normal operation.

An NC apparatus controls a position of a tool by driving a plurality of shafts with a plurality of servomotors. The shafts includes at least one clamp shaft that can be mechanically clamped or non-clamped. A clamp determining unit determines whether a state of the clamp shaft and outputs a signal based on the state. A correcting unit corrects a position instruction value or a position detection value of at least one shaft other than the clamp shaft based on the signal and a correction value so as to cancel an error in a position of the tool due to movement of the tool performed by the clamp shaft.