589 results about "Arm position" patented technology

A system and method for movement control includes a controller coupled to a computer-assisted surgical device having a first movable arm coupled to a manipulatable device having a working end and a second movable arm coupled to an image capturing device. The controller is configured to receive first configurations for the first movable arm; receive second configurations for the second movable arm; receive a plurality of images of the working end from the image capturing device; determine a position and an orientation of the working end; determine a first movable arm position and trajectory for the first movable arm; determine a second movable arm position and trajectory for the second movable arm; determine whether motion of the movable arms will result in an undesirable relationship between the movable arms; and send a movement command to the first or second movable arm to avoid the undesirable relationship.

A device and method for effecting movement, responsive to user input, of an object on a graphical display are disclosed. An input device comprises a component for capturing video images, an input image processor that generates an output signal responsive to motion from the video images, and an output image processor that is programmed to effect movement of the object on the graphical display in response to signals received from the input image processor. Various algorithms are employed within the input image processor to determine initial and derivative data that controls the movement of the object on the graphical display. In a preferred embodiment, video images are captured and processed to isolate a human form from a background, arm position and movement data are calculated from the human form and a signal is generated responsive to this data for controlling the movement of an object, such as a bird, on a graphical display. The movement controlled on the graphical display can take the form of a moving object, or of the change of perspective that such an object might undergo, for example, a bird's eye view.

In a method and apparatus for the automatic merging of 2D fluoroscopic C-arm images with preoperative 3D images with a one-time use of navigation markers, markers in a marker-containing preoperative 3D image are registered relative to a navigation system, a tool plate fixed on the C-arm system is registered in a reference position relative to the navigation system, a 2D C-arm image (2D fluoroscopic image) that contains the image of at least a medical instrument is obtained in an arbitrary C-arm position, a projection matrix for a 2D-3D merge is determined on the basis of the tool plate and the reference position relative to the navigation system, and the 2D fluoroscopic image is superimposed with the 3D image on the basis of the projection matrix.

The invention relates to the technical field of design of unmanned aerial vehicles, and particularly relates to a foldable unmanned aerial vehicle. The foldable unmanned aerial vehicle comprises an I-shaped body, a camera platform, battery assemblies, a flight control system, undercarriages, at least four engine arms, propellers and engine arm locking devices, wherein the camera platform is arranged at the bottom side of the head of the body; the battery assemblies and the flight control system are arranged in the body; the undercarriages are uniformly arranged at the bottom of the body in a rotating way; the propellers are provided with driving devices, and one ends of the four engine arms are respectively articulated to four corners of the I-shaped body; and the engine arm locking devices are used for locking the engine arms when the engine arms rotate to a predetermined opening state or a predetermined closing state. According to the foldable unmanned aerial vehicle provided by the invention, when the engine arms rotate to the predetermined closing state, two engine arms positioned at the same side of the body are completely contained in a containing cavity at the side and are locked by the engine arm locking devices, so that the folded unmanned aerial vehicle is compact in structure, relatively small in size and more convenient to carry; and when the foldable unmanned aerial vehicle needs to be used, the foldable unmanned aerial vehicle can be quickly unfolded so as to be in a flight state quickly.

The present invention extends to a blood control catheter valve for use in a catheter adapter. The blood control catheter value employs an actuator for bypassing a septum to open the blood control catheter valve. The actuator includes flexible retention arms positioned on one end which retract into the body of the actuator while the end of the actuator passes through the septum, and then expand outwardly to maintain the actuator positioned within the septum. This design facilitates the manufacturing of catheter adapters (as well as blood control catheter valves and other components that attach to the catheter adapter) because the design can reduce the tolerance requirements of such components. Further, the design provides a reliable blood control catheter valve that does not require the catheter adapter to be increased in size to accommodate the valve.

The invention relates to a method of realizing the visualization of track arm movement in fields such as immersion interactive game, dangerous industrial control, virtual reality, etc. The current method is not very much in line with human daily interaction habits. The method of the invention is: roughly locating the target window for arm position through analyzing the central logo color information of wrist and elbow in real-time image sequence; then carrying out central logo extraction and three-dimensional reconstruction of characteristic points for the rough target window from two synchronized camera; lastly carrying out robust control with the three-dimensional characteristic points of wrist and elbow based on fuzzy predictive control technology, and generating stable navigation control signals. The method of the invention can realize six degrees of freedom arm navigation operation, thus human arms and hands can be in a natural state when interacting, the operator can carry out human-computer interaction in a natural way, which is much more in line with human daily interaction habits.

A control system for determining a position of an implement arm having a work implement is disclosed. The implement arm includes mating components connected by at least one joint. The control system includes at least one position sensor operably associated with the implement arm and configured to sense positional aspects of the implement arm. It also includes at least one load sensor operably associated with the implement arm, and configured to sense the direction of loads applied to the at least one joint. A controller is adapted to calculate a position of the implement arm based on signals received from the at least one position and load sensor. The calculated position takes into account shifting of the implement arm caused by clearances existing at the at least one joint between the mating components of the implement arm.

An apparatus for generating electrical power. The apparatus comprises a plurality of solar energy collectors for generating electricity from solar energy; a plurality of wind turbines for generating electricity from wind energy; a support structure having arms extending radially from a vertical shaft, the arms positioned at different vertical distances along the vertical shaft and the arms having different lengths; solar energy collectors and the wind turbines affixed to terminal ends of the arms; and the support structure comprising camouflage elements causing the support structure to resemble vegetation.

The invention provides a scene reproduction detection method based on augmented virtuality. The scene reproduction detection method comprises the following steps of generating three-dimensional virtual scene models; building a three-dimensional virtual scene model database; conducting internal reference matrix calibration on a camera installed on a mechanical arm; collecting and storing real scene image frame data and mechanical arm position data; automatically loading the real scene image frame data and conducting image processing; estimating a world coordinate value of an image in the real scene according to pixel coordinates of feature points; matching the feature points of the real scene with corresponding feature points in the three-dimensional virtual scene models; achieving the virtuality and reality combined augmented virtuality display effect. According to the scene reproduction detection method, the three-dimensional advantages of the mixed reality are brought into full play, and the scene reproduction detection method has the advantages of being visual in detection result, high in third dimension and capable of achieving all-angle three-dimensional display and being like the real scene and replaces a traditional complex observation mode depending on checking an image sequence or videos.

A camera positioning and mounting apparatus which in some embodiments may comprise four case receiving surfaces with two mounting arms positioned proximate to each case receiving surface. A front camera lens receiving half of a camera case may be hingedly attached to two mounting arms allowing a camera to be temporarily mounted between the front camera lens receiving half of a camera and a case receiving surface. A latching element may be configured to temporarily secure a front camera lens receiving half of a camera case to a case receiving surface. The case receiving surfaces may be joined to a base with each case receiving surface comprising a case locking tab configured to secure a latching element and a case gasket configured to engage and seal the front camera lens receiving half of a camera case to a case receiving surface.

A wearable computer input apparatus for the human arm having arm skeleton for inputting arm and hand position data and movement data into a computer, one or more 3-axis analog accelerometers and programmable micro controller(s).

There is provided a method and system to determine the position of a sucker rod pumping system without a position sensing device during production pumping. A pump control system of the sucker rod pumping system includes a controller coupled to a database, with the controller configured to access an rxless torque value in the database. With the stored rxless torque value representative of toggle points of the crank arm during an initial calibration pumping cycle, the controller further is configured to continuously sample the rxless torque value of the system and determine the crank arm position in relation to the sample rxless torque value. The controller adjusts the pumping system for optimal operations, without a crank arm position sensor during production pumping by identifying a toggle point and setting the crank arm position estimate equal to the value corresponding to the crank position at the identified toggle point.

A ring mechanism has an elongate housing and rings for holding loose-leaf pages. Each ring has ring members mounted on pivoting hinge plates for movement between open and closed positions. An actuator has opening and closing arms extending from an actuator body for opening and closing the rings. The mechanism has a travel bar moveable between a locked position in which a locking element blocks pivoting movement of the hinge plates and an unlocked position. The actuator has a flexible arm positioned to push the travel bar toward the locked position when the actuator closes the rings. At least a portion of the flexible arm is adapted to deform during closing in a manner that includes rotation in a first direction relative to the body of the actuator. Movement of the actuator to close the rings includes rotation of the actuator in the first direction relative to the housing.

A system configured to allow adjustment of a vehicle seat includes a securing bracket, an extension bracket, and a latching member. The securing bracket is configured to be secured to structure within a vehicle, and includes an adjustment guide track having a plurality of recessed grooves separated by a plurality of teeth or ribs. The extension bracket is movably secured to the securing bracket and includes a fixed arm track, a lever engaging arm positioned within the arm track, and a lever operatively connected to the lever engaging arm. The engaging arm includes a curved channel. The latching member includes a boss or knob and a protuberance. The boss is positioned within the curved channel. The protuberance is configured to be retained within each of the recessed grooves. Movement of the lever engaging arm in a first linear direction causes the latching member to move in a second linear direction that is perpendicular to the first linear direction.

A rotor assembly may include first rotor half, a first spring supported with the first rotor half, a second rotor half, and a second spring supported within the second rotor half, wherein the first rotor half and the second rotor half are adjoined to enclose the first and second springs. A coiled section of each spring may surround a rotor center pin. A contact arm positioned between the springs may include a non-circular opening. A method for assembling such a rotor assembly is further described.

A control system for a loader having a frame, a lift arm assembly, a coupler, and an operator interface is provided. The control system may include a lift arm position sensor coupled to the lift arm assembly and configured to measure a lift arm position, an inclinometer disposed on the coupler configured to measure a coupler angle, and a controller in electrical communication with each of the lift arm position sensor, the inclinometer and the operator interface. The controller may be configured to receive a baseline command from the operator interface for operating one or more of the lift arm assembly and the coupler, monitor the lift arm position and the coupler angle, and generate at least one command for operating one or more of the lift arm assembly and the coupler based on one or more of the baseline command, the lift arm position and the coupler angle.

An image recording device having a recording unit to record an image on a sheet is provided. The image recording unit includes a feed guide defining a first conveying path; an arm disposed between the recording unit and the tray, the arm having a feed roller rotatably disposed at a free end and configured to feed the sheet in the tray to the first conveying path. The arm pivots between a first arm position, and a second arm position. The return guide pivots between a first return guide position, and a second return guide position. A space occupied by the return guide in the first return guide position overlaps a space occupied by the arm in the second arm position. The return guide is in the second return guide position when the arm is in the second arm position which is retracted from an insertion space occupied by the tray.

A power tool in one embodiment includes a swing arm movable along a swing arm path between an upper first swing arm position and a lower second swing arm position, a latch hold mechanism movable between a first latch hold position adjacent to the swing path and a second latch hold position whereat at least a portion of the latch hold mechanism is within the swing path, an actuator configured to force the swing arm assembly away from the first swing arm position and toward the second swing arm position, a swing arm reset configured to pivot the swing arm from the second swing arm position to the first swing arm position, a latch hold reset configured to pivot the latch hold mechanism from the second latch hold position to the first latch hold position, and a control system configured to control the actuator.

An apparatus for generating electricity. The apparatus comprises a plurality of solar energy collectors for generating electricity from solar energy; a plurality of wind turbines for generating electricity from wind energy; a support structure having arms extending radially from a vertical shaft, the arms positioned at different vertical distances along the vertical shaft and the arms having decreasing lengths in a direction toward a top of the apparatus; solar energy collectors affixed to terminal ends of the arms and disposed at different vertical distances along the vertical shaft, the solar energy collectors shaped and oriented to direct wind streams striking the solar energy collectors toward the wind turbines; and each one of the plurality of wind turbines rotatably supported by the vertical shaft to rotate about the vertical shaft and disposed at different vertical distances along the vertical shaft.

A system for holding an item on a hook-arm that has a polygonal cross-section and is mounted within a yoke assembly. The yoke assembly includes a front plate with a rear face and a plurality of open-ended channels that each have a polygonal cross-section that is complementary to the polygonal cross-section of the hook-arm. At least two of the plurality of channels share a common open end. A rear plate mates with the front plate, and has a front face and including a first flange and a second flange that are arranged in spaced apart, parallel relation to one another and in off-set relation to the front face. The front plate is mountable to the rear plate with the at least one hook-arm positioned within one of the plurality of open-ended channels. The whole assembly is then mounted upon a frame having spaced apart openings that are sized and oriented so that one of the spaced apart openings receives the first flange and one of the spaced apart openings receives the second flange.

A portable terminal has a first side hinge arm positioned on a side of one of its housings and a second side hinge arm positioned on the other side of the other housing. A hinge device rotatably couples the housings and generates a rotational force to fold or unfold them. The hinge device makes the assembly process easy and contributes to diversification of terminal design. One of the housings can reverse its front and rear surfaces when unfolded, due to a dual hinge construction, for more convenient use of the portable terminal having a camera device.

Methods and systems for preparing a substrate implementing a surface tension reducing process are provided. In one example, a substrate preparation system includes a chuck which fingers for edge gripping the substrate. The chuck is hollow to provide simultaneous access to both active and backside surfaces of the substrate, and is configured to rotate the substrate. The system includes dispense arms positioned over the substrate surfaces. The dispense arms are capable of moving between a center region and a periphery of the substrate surfaces, and each dispense arm includes a pair of supply lines for delivering fluids over the substrate surfaces. A connection couples the upper dispense arm with the lower dispense arm so that the dispense arms synchronously move between the center region and the periphery of the substrate, and remain aligned on opposite surfaces of the substrate.