5419 results about "Position control" patented technology

An asset monitoring and security system includes at least one asset assigned a unique identifier and operable wirelessly transmit an identification signal embodying the identifier. A data store maintains a list of the assets and privileges associated with the assets for authorized users of the assets. A control unit is adapted to receive identification signals from the assets and monitor positions of the assets within a defined area. The control unit communicates with the data store and is further operable to initiate an alarm event when privileges associated with a given asset for authorized users of the asset are exceeded. Each of the assets includes a lock-out mechanism that impedes use of the asset when the lock-out mechanism is activated. The control unit activates the lock-out mechanism of a given asset when the privileges associated with the asset for authorized users of the asset are exceeded.

Papillary muscle position control devices (900) systems and methods are provided. According to an exemplary embodiment, a papillary muscle position control device generally comprises a first anchor (905), a second anchor (920), and a support structure (915). The first anchor can be configured to fixedly connect to an in situ valve of a heart ventricle. The second anchor can be configured to fixedly connect to a muscle wall of the valve. The support structure can be configured to have an adjustable length and be coupled to the first anchor and second anchor such that adjusting the length of the support structure varies a distance between the first anchor and the second anchor. Other embodiments are also claimed and described.

A medical device introduction system and method can include a medical introducer, a separate imaging device, and / or a separate working channel device, each of which may be movable independent of the other. The medical introducer can include a handle and an elongate introducer tube extending from the handle and having a plurality of lumens, and may be inserted into an interior body region of a patient. The separate imaging device may be inserted through the handle and positioned in one of lumens. The separate working channel device can include an elongate working channel tube and a position controller. The working channel tube can include at least one lumen defining a working channel. The position controller can be configured to control positioning of the working channel tube. The working channel device may be removably connected to the handle and positioned in another lumen.

A patient handling device includes a controller, with a plurality of sensors, control panels, and lamps electrically connected to the controller. The patient handling device records the normal / desired state of the various components when power is applied. When one of the components goes outside the normal / desired state, the controller issues an alarm. This alarm includes illuminating a plurality of amber alert lamps which can normally be viewed by a user at any position around the outside of the patient handling device. The patient handling device also includes a position control. This control restricts movement of an upper (fowler) portion of the patient handling device in a certain range of angular positions, while permitting movement of the upper portion outside the certain range.

Gestures for converting from a position control mode to a motion continuation mode are disclosed. A position control mode can be invoked when the user simultaneously places two or more fingers upon a sensor panel. The fingers can then be moved around to effect position control. A motion continuation mode can be invoked when one or more fingers are lifted off (but at least one finger remains in contact with the sensor panel). If the motion continuation mode is invoked, a virtual control ring can be generated, and scrolling of the viewable area or dragging of the cursor or object can continue in a particular direction specified by a velocity vector pointed in the direction of finger movement at the time the motion continuation mode is invoked, and having a magnitude proportional to the velocity of the finger at the time the motion continuation mode was invoked.

A therapy head for use in HIFU procedures is described. The therapy head has an enclosure with a window, an energy applicator and a means of moving the energy applicator within the enclosure. The therapy head uses motors and actuators to move the energy applicator, usually an ultrasound transducer, inside the enclosure. A controller is provided either internally or externally that allows the therapy head to identify and distinguish locations where the therapy head should be to radiate energy into a patient. The controller uses the motors and actuators to move the energy applicator into the desired locations.

A method and system for controlling a display of a data processing system uses first and second wireless position control devices, and a control base unit. The first wireless position control device includes an acoustical transducer for transmitting a first ultrasonic carrier signal upon which X-Y position control and / or action control signals generated by the device are imposed. A second wireless position control device includes and acoustical transducer for transmitting a second ultrasonic carrier signal upon which X-Y position control and / or other action control signals generated by the second control device are imposed. The first and second ultrasonic carrier signals have different frequencies. The control base is associated with the data processing system and includes circuitry for receiving and differentiating the first and second ultrasonic carrier signals to generate decoded display control signals. The display control signals are then used to drive the display device. Two users may thus control the display device simultaneously.

A seismic streamer position control module has been invented having a body with a first end and a second end and a bore therethrough from the first end to the second end for receiving a seismic streamer therethrough, at least one control surface, and at least one recess in which is initially disposed the at least one control surface, the at least one control surface movably connected to the body for movement from and into the at least one recess and for movement, when extended from the body, for attitude adjustment. In one aspect the seismic streamer position control module body has tapered ends.

A method and apparatus for tracking and determining a location of a gaming machine or other item within a casino or hotel is disclosed. In one embodiment the method and apparatus utilizes a transmitter or emitter to provide a tracking signal that may be tracked by one or more receivers or detectors. It is contemplated that the transmitter or emitter connect to a gaming machine. As the gaming machine is relocated within the casino its location is monitored. The one or more receivers may communicate with a host computer or other data processing system to generate location data regarding the gaming machine in relation to other aspects of the casino. Based on the location information generated by the location monitoring and tracking system, other aspects of machine operation may be controlled and additional features dependant on the machine location information may be enabled.

An image tracking system for generating digitized image frames of a moving object using an image capture device and a position control device. The image capture device and determining a location value for an object image within each of the digitized image frames. The position control device is coupled to the image capture device to receive the location value of the object image and generates a plurality of control signals which are sent to the position manipulating device. The position control device also uses the plurality of control signals and generates a plurality of rotational movements which position the image capture device, such that the location value of the object image remains within a center region of each of the digitized image frames and such that rotation along different rotation axis occurs independently.

The invention relates to an indoor autonomous navigation method for a micro unmanned aerial vehicle, belonging to the technical field of autonomous navigation of micro unmanned aerial vehicles. The method comprises the following steps: estimating the motion state of the micro unmanned aerial vehicle based on an RGB-D camera and an MEMS inertial sensor; performing real-time three-dimensional environment modeling based on fusion of the RGB-D camera and the MEMS inertial sensor; and performing real-time trusted path planning and path tracking control, implementing position control and attitude control through the three steps, and guiding the unmanned aerial vehicle to track the preset path to fly. According to the method, the unmanned aerial vehicle positioning accuracy and the motion state estimation accuracy are improved; the indoor autonomous environmental perception capability of the micro unmanned aerial vehicle is improved; according to the generated path, the positioning accuracy can be effectively guaranteed on the basis that the path feasibility is met; and the autonomy capability of the micro unmanned aerial vehicle is effectively improved.

A laser processing apparatus and a laser processing method which can accurately converge processing laser light at a predetermined position are provided. In the laser processing apparatus, a condenser lens 31 converges processing laser light L1 and rangefinding laser light L2 onto an object to be processed 1 on the same axis. Here, light-converging point position control means40 detects reflected light L3 of the rangefinding laser light reflected by the front face 3 of the object 1, and places a light-converging point P1 of the processing laser light L1 at a predetermined position. Since the processing by the processing laser light L1 and the measurement of displacement of the front face 3 by the rangefinding laser light L2 are carried out on the same axis as such, the light-converging point P1 of processing laser light L1 can be prevented from shifting from the predetermined position because of vibrations of the stage 21 and the like. Therefore, the processing laser light L1 can accurately be converged at the predetermined position.

The present invention provides an adjustable bed handheld remote control that may include a handheld housing, a touch sensor on a front face of the handheld housing, a transmitter and the like. The touch sensor may be presented in a slider form and may be adapted to facilitate a user in adjusting a frame position of an adjustable bed. The transmitter may be electrically coupled to a processor and may receive input from the touch sensor, for communication control signals to the adjustable bed in accordance with the input received from the touch sensor.

A method and system for controlling drive of a robot having two or more drive axes and driven in accordance with an action program transmitted from a system controller to a robot controller by a wireless transmission way, checks whether a detected current position of the robot coincides with a predetermined start position of the robot in terms of the drive axes, and allows the robot to be driven in accordance with the designated action program when the detected current position coincides with the predetermined start position. Failure in the position control of the robot due to transmission error is prevented by the position checking.

A modular multi-axis motion control and driving system is developed by using advanced Digital Signal Processor (DSP) and Field Programmable Gate Array (FPGA) technologies. A modular multi-axis motion control and driving system comprises: a control board comprising a DSP and Flash ROM connected to each other, for performing position control and current control of said system; a plurality of driver boards, connected to the control board through a bus, each of which comprise a FPGA device and a plurality of MOSFET power amplifier, for driving a plurality of servo motors; a computer, connected to said control board, for providing graphic user interface, through which motor setting, current and position loop tuning and diagnostic can be performed; Wherein, a control program, system parameters and FPGA configuration file are stored in said Flash ROM, when the system power is on, the DSP automatically executes an loader firmware to transfer the control program from said Flash ROM to the memory of DSP for execution, then the DSP reads the FPGA configuration file from the Flash ROM and configure the FPGA in the driver board, after that, the control program runs into a circulation loop to do system diagnose, network service and check command queue, while the current and position controls are implemented in an interrupt service.

A controller inclines a movable body with respect to an XY plane at an angle α in a periodic direction of a grating, based on a measurement value of an interferometer which measures an angle of inclination of the movable body to the XY plane, and based on a measurement value of an encoder system and information of angle α before and after the inclination, and computes an Abbe offset quantity of the grating surface with respect to a reference surface (e.g., an image plane of a projection optical system) which serves as a reference for position control of the movable body in the XY plane. Then, the controller drives the movable body, based on positional information of the movable body in the XY plane measured by the encoder system and a measurement error of the encoder system corresponding to an angle of inclination of the movable body to the XY plane due to the Abbe offset quantity of the grating surface.

An electric derailleur has a motor unit having a derailleur motor with an output shaft, a position control mechanism and a controller. The output shaft is rotated through a moveable range including a first derailleur shift position and a second derailleur shift position. The position control mechanism is configured and arranged to provide a position signal indicative of an angular position of the output shaft. The controller detects a predetermined lockup position of the derailleur motor occurring at one of the first and second derailleur shift positions. The controller also sets a predetermined stop position for the derailleur motor that is calculated distance prior to the lockup position based on the position signal of the position control mechanism. Thus, the derailleur motor can be calibrated such that a new stop position is set that prevents an overcurrent from occurring in the motor.

An object tracking apparatus consisting of an imaging device, a signal processor for processing a video signal generated by the imaging device, and a display for displaying the result of processing performed by the signal processor. An intruding object is detected within a field under monitoring based on a video signal captured by the imaging device, and the imaging device is controlled in response to motions of the intruding object to track the object. The position of a visual field range of the imaging device is calculated, and panning and tilting of the imaging device and an imaging lens are controlled such that the calculated position of the visual field range of the imaging device does not include an imaging prohibited region positioned within the field under monitoring.

A surveillance camera system capable of accepting any appropriate surveillance camera and video transmission option and is programmed to operate with a multitude of competitive communication protocols with minimal servicing required. The system can quickly convert and / or update the camera system to be able to transmit video data over coaxial cable, unshielded twisted-pair (UTP), fiber optics or IP. A conversion from UTP to IP can convert the camera assembly into a network server for TCP / IP communication enabling the camera to be controlled locally or from any location over the internet using any installed network video protocol. The camera assembly with the ability to quickly configure the communication video interface via switch selectable on-board communication protocols.

A dynamic workcell includes a three dimensional positioning robot positioned adjacent a plurality of operation stations. A plurality of movable part fixtures located adjacent to the robot is also provided. A fixture location controller directing positioning of the part fixtures relative to the plurality of operation stations to minimize travel between an operation station and a part fixture is provided. A method for operating a workcell may include the steps of: mapping ones of a plurality of testers to the plurality of movable part fixtures; maintaining the position of each movable part fixture; determining a current location of an active part fixture relative to a mapped tester; and minimizing the distance between the mapped tester and the active part fixture.

A robot apparatus having a multi-link structure including a plurality of links and joints serving as link movable sections, and in which at least some of the links are driven by combination of position control and force control is disclosed. The apparatus includes: position control means for performing the position control on the links, which are driven by position control and force control; position control means with force constraint for placing the force control before the position control so as not to cause the magnitude of an external force to exceed a set value; force control means for performing the force control on the links; and integrated force / position control means for controlling driving of the joints by switching the position control means, the position control means with force constraint, and the force control means, and unifies the position control and the force control.

This optical receiving device for discriminating and recovering a data signal, which results from converting an optical signal input through a dispersion equalizer into an electrical signal and amplifying it to a pre-determined amplitude, by using a clock and data recovery circuit for discriminating a data signal at the decision point controlled to achieve the optimum position controls the dispersion characteristics of a dispersion equalizer so that the error count in the recovered data signal by using a clock and data recovery circuit will be minimized by controlling the eye pattern of the data signal which has been amplified to a pre-determined amplitude.

A door position control including an electric door actuator having a motor and a motor controller in communication with a system controller. A motor actuation operation is selected from a plurality of predetermined motor actuation operations to provide control signals to the motor controller for controlling actuation of the motor for control of door movement. Control of door movement is effected with reference to parameters specific to an installation location including an angular sweep of the door between open and closed positions and with reference to an available bus voltage for supplying power to the motor.

The invention discloses an optimum dual-inlet and dual-outlet steel ball coal grinding machine direct-blow type powder-preparation control method. The method obtains the material position of the coal grinding machine after carrying out soft-measurement processing by collecting the noise material position of the coal grinding machine, the material position of pressure difference, the current of the coal grinding machine, one-time air quantity, one-time opening of the hot wind door and the cold wind door of an inlet, inlet temperature and outlet temperature; the control comprises material position control, air quantity capacity control, bypass air quantity control and the temperature control of the inlet and the outlet; the material position is optimized and the best material position of the coal grinding machine is searched online so as to ensure the combustion safety of the boiler and coal powder supply quantity when the load of the boiler is adjusted. The boiler combustion is optimized: according to the boiler technology, the load and the running working conditions, the powder supply quantity and the ventilation quantity of each coal grinding machine are optimized and the combustion efficiency of the boiler is improved. Malfunction diagnosis, running evaluation and analysis are carried out to the system and reasonable suggestions are provided so as to ensure the system to run continuously, stably, safely and economically; the optimum dual-inlet and dual-outlet steel ball coal grinding machine direct-blow type powder-preparation control method is widely applied to the dual-inlet and dual-outlet steel ball coal grinding machine direct-blow type powder-preparation system or industrial similar systems in other industries.