403 results about "Spatial movement" patented technology

Apparatus including a first spinal prosthetic member attachable to a first spinal structure, and a second spinal prosthetic member attachable to a second spinal structure, the first and second spinal prosthetic members being movably attached to one another with a fastening device, the fastening device having a non-tightened position which permits spatial movement of the first and second spinal prosthetic members with respect to one another at a desired orientation, and a tightened position which fixes the first and second spinal prosthetic members at the desired orientation.

A method for ascertaining the axis of rotation of a vehicle wheel in which a light pattern is projected at least onto the wheel during the rotation of the wheel and the light pattern reflected from the wheel is detected by a calibrated imaging sensor system and analyzed in an analyzer device. Accurate and robust measurement of the axis of rotation and, optionally, of the axis and wheel geometry, in particular when the vehicle is passing by, is achieved in that a 3D point cloud with respect to the wheel is determined in the analysis and a parametric surface model of the wheel is adapted thereto; normal vectors of the wheel are calculated for different rotational positions of the wheel for obtaining the axes of rotation; and the axis of rotation vector is calculated as the axis of rotation from the spatial movement of the normal vector of the wheel.

A transmission or actuator offering multiple rotational outputs proportionate in speed to that of a common rotational input, each output according to its own ratio. The ratios are continuously variable between positive and negative values, including zero, and may be varied by electromechanical actuators under computer control. The transmission relates the output speeds one to another under computer control, and thus makes possible the establishment of virtual surfaces and other haptic effects in a multidimensional workspace to which the transmission outputs are kinematically linked. An example of such a workspace is that of a robotic or prosthetic hand.

It comprises a supporting structure in which at least one arm is slidably attached. Each arm comprises first and second members hinged to each other. The first member is rotatably hinged to the supporting structure and it can be rotated about a longitudinal axis and the second member may receive a joint having at least two degrees of freedom for attaching a tool. The longitudinal axis of the first member is substantially perpendicular to an axis joining the first member and the second member to each other. A simplified architecture is obtained allowing for accurate and efficient spatial movement of the tool holding arm.

A video signal produced through a shooting operation of a camera is sent to a motion detecting unit which detects a motion included in the video signal to set an area of the motion as a space motion area and inputs information of the area to a distance determination circuit which calculates distance between the motion area and the camera by use of a parallax signal produced from stereo cameras disposed in the camera to send information of the space motion area and the distance to a mask determination circuit. The mask determination circuit conducts a comparison between the space motion area information and the space mask area information and between the distance information of the motion area and that of the space mask area, and resultantly compares three-dimensional positions between the detected motion and the mask to determine a position relationship therebetween.

A method for operating a virtual whiteboard using a mobile phone device, comprises the steps of: generating the virtual whiteboard, wherein the mobile phone device is coupled to the virtual whiteboard to input data to the virtual whiteboard; connecting the mobile phone device to an external display device; displaying the virtual whiteboard on the external display device; and operating the virtual whiteboard using the mobile phone device; wherein markings on the virtual whiteboard correspond to spatial movements of the mobile phone device.

The invention provides a digital full-space intelligent monitoring system and a method. The system comprises an on-site monitoring device, a device management module, a full-space monitoring information fusion module, a full space intelligent monitoring module, a database management module and a monitoring service interface. The method comprises the following steps: extracting on-site monitoring data; fusing the on-site monitoring data according to a three-dimensional scene model and the mapping relationship of the on-site monitoring data in the three-dimensional scene model so as to form full-space monitoring data, and establishing a full-space dynamic monitoring view according to the full-space monitoring data; analyzing the full-space monitoring data according to preset alarm rules anda features library of monitored targets; and providing the full-space dynamic monitoring view for user terminal devices. In the invention, the full-space monitoring information is fused to the three-dimensional model, full-space motion information of the monitored targets can be obtained, global motion trajectory and space location information of the monitored targets are convenient to be grasped,and the invention is helpful for enhancing the validity and the accuracy of decision for processing emergency cases.

A method for locating an electronic mobile device capable of wireless communication, the method including obtaining a probability map structure for the area of interest, the probability map structure associating environment data values, preferably including cellular network based data, with location data, obtaining a number of probabilistic temporospatial motion models for different types of motion, the models at least partly defining transition probabilities between location estimates relative to time, obtaining at least environment data captured or determined by the mobile device at a plurality of sequential time instances, and determining the most probable location estimate of the mobile device based on combining probability data from both the probability map structure and the motion models, wherein the at least environment data is best fitted in the motion models and probability map structure according to predefined criteria. Related two arrangements and a computer program are presented.

During control of a user interface via free-space motions of a hand or other suitable control object, switching between control modes can be facilitated by tracking the control object's movements relative to, and its contact with a “virtual touch plane or surface” (i.e., a plane, portion of a plane, and / or surface computationally defined in space, or corresponding to any physical surface).

A vent includes a vane configured for spatial movement, and at least one actuator in operative communication with the vane configured to spatially move the vane in at least one direction, wherein the actuator comprises an active material configured to undergo a change in at least one property upon receipt of an activation signal, wherein the change in at least one property is effective to selectively change an orientation of the vane.

The invention is a kind of decided magnetic radiating processing method. The piece and the nozzle for spraying magnetic rheology liquid are set on the numerical control platform, there sets a magnetic field. It controls the rheology performance of magnetic rheology liquid through controlling the special movement position of the piece and the direction-magnitude of the magnetic field, and controlsthe viscosity of the liquid and the spraying angle. Makes the liquid into anisotropic liquid media and processes the piece. The inventin includes numerical control platform with y axis, v axis, x axis, z axis and u axis, the piece is placed on y axis, v axis has a nozzle above it and u axis. There is controllable electromagnetic coil, z axis connects with u axis and x axis.

There are provided an information processing apparatus and method using a wireless communication terminal. The information processing apparatus includes: a wireless communication terminal generating displacement corresponding to its spatial movement by a user's manipulation, as pointing information, and wirelessly transmitting the pointing information; and an information processor receiving the pointing information transmitted from the wireless communication terminal, analyzing the received pointing information to extract the displacement, and moving a cursor on a screen to a location corresponding to the extracted displacement. Therefore, by using a wireless communication terminal as a spatial pointing device for an information processor and performing wireless data communication between the wireless communication terminal and the information processor using the pointing function of the spatial pointing device, it is possible to easily and conveniently perform data communication between the information processor and the wireless communication terminal and easily control the information processor using the wireless communication terminal.

The invention discloses a camera and robot relative pose calibration method based on pixel space optimization. According to the method, a calibration board carried at the tail end of a robot is adopted for moving inside the range of the view of a fixed camera, and space motion constraint information of the calibration board is utilized for calibration to obtain the optimal relative pose relation between the camera and a robot base. Firstly, linear invariance of a rotating matrix is utilized for solving a homogeneous transformation matrix to obtain a preliminary calibration result; then, the preliminary calibration result is used as an initial optimization value for optimization of pixel space, so that a reprojection error is made to the minimum. According to the camera and robot relative pose calibration method, the iterative optimization algorithm is adopted, no precision external measurement equipment is needed, model constraints of the image pixel space are utilized, the effective optimization initial value obtaining method is combined, the calibration result with the higher precision is obtained, and the requirement of a visual servo robot for completing positioning and grabbing working in industrial application can be met.

The invention relates to a milling, grinding and polishing device based on an intelligent numerically-controlled platform, belonging to the technical field of modern optical processing. The device comprises an industrial robot, a control module, a driving module, a human-computer interaction interface, a working component, a polishing and cooling liquid cyclic control system and a sucker clamp, wherein the control module and the driving module control and drive the spatial movement and spatial positioning of the industrial robot, thereby controlling the working state of the working component, namely a grinding / polishing module; the control module also controls the human-computer interaction interface and simultaneously controls a stirring device, a temperature control device and a conveying device of the polishing and cooling liquid cyclic control system; and the sucker clamp is used for clamping a workpiece to be processed. The device of the invention has low manufacturing cost, large processing caliber and wide processed surface types, and two functions of grinding and polishing can be realized by replacing grinding heads.

The invention relates to systems and methods that provide a user interface for use with an electronic trading system. The interface includes a display that shows a bid price axis and an ask price axis, as well as corresponding sizes, and a visual indicator of the inside market. When the inside market changes in response to changing market conditions, the display of the inside market clearly shows a spatial movement of the inside market as well as the representative price(s) associated therewith, thereby rendering the two price axis dynamic axis. The user interface is easy to use, intuitive as well as customizable, and contains features that facilitate efficient electronic trading and shows trading activity pertaining to the user as well as the market in general.

The invention belongs to the technical field of aerospace modelling and discloses a method for building the six degrees of freedom movement model of a spinning aircraft. During spinning, the special geometric configuration of an aircraft and air mutually act to provide elevating force for the aircraft, and the aircraft skilfully combines a pulsed detonation engine to provide thrust. Based on classical aerodynamics theorem of momentum and theorem of moment of momentum, a nonlinear mathematical simultaneous differential equation which can descript the center of mass motion and the center of mass surrounding motion is deduced. According to known engine thrust, the track of spatial movement of the aircraft is solved with the Runge-Kutta method; according to the track of spatial movement, the corresponding thrust of the engine is solved with a difference method; the two different methods can obtain the same result, i.e. the correctness of the movement model algorithm built by the invention is proved. The invention has the effect and benefits that the invention can realize the control of flexible space movement of the spinning aircraft, and has important application value in various application fields.

A method and a system for detecting the spatial movement state of moving objects, e.g., vehicles. Due to a, for example, non-cartesian arrangement of four rotational rate sensors and / or acceleration sensors, it is also possible to obtain a redundant signal in addition to the desired useful signal indicating the spatial movement state, e.g., the rotational movement and / or acceleration in space; if this redundant signal is large enough in comparison with the rotational rate actually applied, it may be used for detection of the size of the error and the defective sensor. The four sensors are mounted, for example, on a sensor platform forming a three-sided truncated pyramid so that all possible three-way combinations of sensors are mutually linearly independent. The accuracy about the vertical axis is defined by the angle of inclination of the side faces of the truncated pyramid.

The invention discloses a laser tracker-based machine tool error dynamic compensation method. A laser tracker is adopted to perform dynamic tracking detection; and the method is suitable for being used in laboratory environments with strictly controlled temperature and humidity and can also be used in workshop site environments with severer conditions. Laser interference ranging, photoelectric detection, precision machinery, a computer and a control and modern numerical value calculation theory are integrated by the laser tracker; a space moving object is tracked and spatial three-dimensional coordinates of an object are measured in real time; and the method has the characteristics of high precision, high efficiency, real-time tracking measurement, quickness and convenience in mounting, easiness in operation and the like. A machine tool is dynamically monitored and compensated in real time based on a laser tracker measurement result; error measured by using the scheme is total error obtained after all system errors and random error are superposed; and thus, all error values can be dynamically compensated in real time by the scheme, the system precision of the machine tool is greatly improved, and a detection device of the machine tool is simplified.

The invention discloses a detection method for geometrical errors of a rotation shaft of a five-axis numerical control machine tool, belongs to the technical field of machine tool precision detection, and relates to a detection and identification method for the geometrical errors of the rotation shaft of the five-axis numerical control machine tool. The detection method comprises the steps that image information of a concentric target are collected by a binocular camera and used for representing the actual movement information of the rotation shaft, the three-dimensional coordinate information of a feature point is acquired finally through camera calibration and image processing, and the movement track represents the space movement track of one point on the rotation shaft; and through combination of a multi-body system theory of the machine tool and a subcoordinate transformation theory of the machine tool, the errors PIGE having no relation to the position of the rotation shaft and the errors PDGE having a relation to the movement position of the rotation shaft are identified and measured. The method effectively achieves detection and identification of the geometrical errors of the rotation shaft of the machine tool, the measurement process is simple and fast, and the measurement efficiency is high. The requirements for the operation track of the machine tool are simple in the measurement process, cooperation with other shafts is not needed, and other shaft linkage errors are avoided.

The invention relates to a method for rapidly retrieving a motional trajectory of an interested video target. The method comprises the following steps: (1) integrating massive videos, and correlating geospatial information; (2) converting heterogeneous data to generate a video stream with a unified format for video viewing; (3) presetting a topological camera relationship table in a database, traversing all cameras shooting the target; (4) editing and recording elements of video pictures of all the cameras shooting the target, and storing the elements in the database; (5) according to the recorded elements, splicing the videos of the whole motional trajectory of the interested target according to the time sequence; forming a motional trajectory route of the target on a GIS map according to the time sequence; (6) outputting a video route graph of the motional trajectory of the target with the same format so as to facilitate archiving and later viewing. By the method, the target can be found rapidly and the spatial motional trajectory of the target can be intuitively acquired, so that the retrieving efficiency is improved, and the viewing time is saved.

The invention discloses a near space moving target positioning method based on an unmanned aerial vehicle, which belongs to the technical field of unmanned aerial vehicle target positioning. The method comprises the following steps: firstly, an infrared target detector loaded on the unmanned aerial vehicle is used for acquiring a target angle measurement value, in combination of an unmanned aerial vehicle navigation system, the position and the attitude information of the unmanned aerial vehicle are outputted, and the angle value of the connection line between the target and the unmanned aerial vehicle in an earth-rectangular coordinate system is calculated; then, according to the calculated angle value, the least-squares solution of the target in the earth-rectangular coordinate system is solved; and finally, the solved rectangular coordinates are converted to the longitude, the latitude and the height. The method can realize high-precision positioning of the near space target when a laser range finder or a radar can not be used normally, and can be applied to multi-unmanned aerial vehicle formation cooperative positioning.

The invention relates to a method and a device for measuring the movement locus of an automatic knife-changing mechanical arm and belongs to the field of space movement locus tracking and measurement of an automatic knife-changing mechanical arm at a processing center. The method is a non-contact type three-dimensional online measurement method based on two-dimensional PSDs (Phase Sensory Detectors); light sources as measured targets are installed on a measured ATC (Air Traffic Control) mechanical arm and are projected onto two-dimensional induction screens of two PSD cameras composed of two position sensitive detectors respectively through a lens to form light spots; the two PSD cameras respectively output two-dimensional coordinate values under the excitation of the light spots; after passing through a signal processor, a voltage value corresponding to a coordinate position is outputted; and a computer collects and saves a corresponding signal through a voltage acquisition card. The method is quick in response speed and satisfies the real-time online measurement requirements. Through the movement locus of the mechanical arm, the positioning accuracy, the movement stability and other movement states in the knife changing process can be judged to provide a quantitative method for the reliability detection of a knife library.

The invention relates to a method for testing cutting and bonding friction characteristics with a point-contact opened-closed type pin-disc friction system which is structured by a friction test platform transformed by a lathe. Aiming at the research requirements on the cutting friction problem and through the design of a pin-disc structure and the combination of lathe space motion trail, an opened-closed type system can be structured, and the cutting friction under an extreme working condition can be simulated; and an acting force of a contact interface can be measured by utilizing a Kistler piezoelectric force meter, a tangential force component caused by material elasticplastic deformation can be removed by combining a finite element simulation method, and thus a bonding friction factor can be obtained. The method disclosed by the invention is mainly used for testing and analyzing the friction characteristic of cutters in the cutting process. A main body of equipment is common equipment in a manufacturing laboratory, and has the advantages of good rigidity, simple structure, easy implementation and the like.

A method of temporal error concealment for generating the image data of the missing macro-blocks in the current frame by using the previous frame and the correct data of the current frame is disclosed. The method includes the steps: first using Optimal Regression Plane to estimate the space motion vectors for each block in the missing macro-blocks; selecting appropriate motion vectors from the estimated space motion vectors and the correct temporal motion vectors in the pervious frame as the candidate motion vectors; dividing the missing macro-block into sub-blocks with optimal size; fine tuning the candidate motion vectors as the predicted motion vectors; and using the predicted motion vectors to generate the predicted image data for the missing macro-block and further concealing the effect of the missing macro-blocks upon the image quality of the current frame. The method reduces the computation time, speeds up the process, and improves the image quality.

The invention relates to a control technology for a photograph camera position, particularly to a control method for position of a photograph camera hauled by a suspension cable. The control method is characterized in that a suspension cable frame, consisting of a support tower and a traction cable is included; one end of the suspension cable is connected with a photograph and videotape cradle head and the other end is respectively connected with a transmission unit through the support tower; the transmission unit is electrically connected with a computer control unit which is electrically connected with a stimulated photograph and videotape mechanism; the computer control unit acquires space motion parameters of a cameraman controlled handle of the stimulated photograph and videotape mechanism by a state sensing and detecting unit for detecting the stimulated photograph and videotape mechanism, and then controls the transmission unit to ensure that the photograph camera fixed on the photograph and videotape cradle head three-dimensionally moves in the space of the suspension frame, formed by the space support tower, and the photograph camera and the cameraman controlled handle are operated synchronously. The photograph camera can be used for not only shooting at a fixed position, but also dynamic shooting and tracing shooting.