375results about How to "Reduce positioning accuracy" patented technology

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 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.

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.

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 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 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 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 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 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.