10639 results about "Large range" patented technology

A robotic apparatus has eight actuators (M0-M7) and a linkage (LINK 0-LINK 5) that actuates an end effector. Three serial macro freedoms have large ranges of motion and inertias. Four serial micro freedoms have small ranges of motion and inertias. Translation of the end effector in an y direction is actuated by at least one micro joint and at least one macro joint. The apparatus can be part of a master and slave combination, providing force feedback without any explicit force sensors. The slave is controlled with an Inverse Jacobian controller, and the mater with a Jacobian Transpose controller. A slave having more degrees of freedom (DOFs) than the master can be controlled. A removable effector unit actuates its DOFs with cables. Beating heart surgery can be accomplished by commanding the slave to move with a beating heart and cancelling out any such motion in the motions perceived by the master.

A proactive worm containment (PWC) solution for enterprises uses a sustained faster-than-normal outgoing connection rate to determine if a host is infected. Two novel white detection techniques are used to reduce false positives, including a vulnerability time window lemma to avoid false initial containment, and a relaxation analysis to uncontain (or unblock) those mistakenly contained (or blocked) hosts, if there are any. The system integrates seamlessly with existing signature-based or filter-based worm scan filtering solutions. Nevertheless, the invention is signature free and does not rely on worm signatures. Nor is it protocol specific, as the approach performs containment consistently over a large range of worm scan rates. It is not sensitive to worm scan rate and, being a network-level approach deployed on a host, the system requires no changes to the host's OS, applications, or hardware.

The present disclosure describes a method and system for performing robot-assisted surgical procedures. The system includes a robotic arm system assembly, an end effector assembly, and a hybrid control mechanism for robotic surgery. The robotic arm is a lightweight, bedside robot with a large range of motion, which can be easily manipulated to position endoscope and surgical instruments. The control console is mounted at the distal end of the robotic arm to enable robotic arm to follow operators arm movement, provide physical support, filter out hand tremor, and constrain motion. A universal adapter is also described as an interface to connect traditional laparoscopic tools to the robotic arm.

Pre-authentication information of devices is used to securely authenticate arbitrary peer-to-peer ad-hoc interactions. In one embodiment, public key cryptography is used in the main wireless link with location-limited channels being initially used to pre-authenticate devices. Use of public keys in the pre-authenticate data allows for the broadening of types of media suitable for use as location-limited channels to include, for example, audio and infrared. Also, it allows a range of key exchange protocols which can be authenticated in this manner to include most public-key-protocols. As a result, a large range of devices, protocols can be used in various applications. Further, an eavesdropper is forced to mount an active attack on the location-limited channel itself in order to access an ad-hoc exchange. However, this results in the discovery of the eavesdropper.

The present invention discloses a system and a method to locate moving objects, such as people, pets and vehicles, over a wide area, by attaching small wireless devices, such as Bluetooth transceivers, to said objects and determining the location of said devices. The location of said wireless devices is determined by achieving ad-hoc short range wireless connectivity between said devices and communication devices such as Bluetooth enabled mobile phones that pass by, where said latter communication devices can be located by other means, such as GPS or network-based techniques.

A symmetric touch screen switch system in which both the touch side and panelside transparent electrodes are comprised of carbon nanotube thin films is provided. The fabrication of various carbon nanotube enabled components and the assembly of a working prototype touch switch using those components is described. Various embodiments provide for a larger range of resistance and optical transparency for the both the electrodes, higher flexibility due to the excellent mechanical properties of carbon nanotubes. Certain embodiments of the symmetric, CNT-CNT touch switch achieve excellent optical transparency (<3% absorption loss due to CNT films) and a robust touch switching characteristics in an electrical test.

A non-destructive inspection, testing and evaluation system and process is provided for the review of aircraft components. The system provides for a structure configured to contain an inspection and testing apparatus and the aircraft components under inspection. The structure is lined with shielding to attenuate the emission of radiation to the outside of the structure and has corbels therein to support the components that constitute the inspection and testing apparatus. The inspection and testing apparatus is coupled to the structure, resulting in the formation of a gantry for supporting a carriage and a mast is mounted on the carriage. The inspection and testing equipment is mounted on the mast which forms, in part, at least one radiographic inspection robot capable of precise positioning over large ranges of motion. The carriage is coupled to the mast for supporting and allowing translation of the equipment mounted on the mast. The mast is configured to provide yaw movement to the equipment.

A defibrillator having a pair of electrodes for delivering an impedance-compensated defibrillation shock and a method thereof is provided. The defibrillator can be deployed rapidly and effectively with no or minimal clothing and hair removal. To achieve this, one electrode is coupled to a neck region of the patient, whereas the other electrode is coupled to the patient's body. Both attachment areas are easily accessible to the rescuer, thus allowing a minimally trained user to easily deploy the defibrillator to treat the patient. A wide range of energy levels that are safe for the patient can be generated selectively based on the patient impedance. The presence of voids in the electrodes decrease the effective shock impedance of the electrodes, thus allowing the defibrillator to operate at a lower level of energy when delivering the electrical pulse to the victim's heart.

A birefringent interferometer system is described which uses nematic liquid crystal cells to produce variable optical path differences (OPD) between light of different polarization states that are interfered at a polarizing analyzer. Fixed retarders may also be incorporated to extend the range of OPD. The interferometer provides wide field-of-view, continuously variable path difference over a large range, and an on-board monitor of OPD for ensuring accurate settings of path difference, and hence, an accurate wavelength scale in the spectra produced by the apparatus. The system can further incorporate additional polarizing optics so it responds equally well to light of any incident polarization state without loss of efficiency.

The invention discloses a cross-camera pedestrian detection tracking method based on depth learning, which comprises the steps of: by training a pedestrian detection network, carrying out pedestrian detection on an input monitoring video sequence; initializing tracking targets by a target box obtained by pedestrian detection, extracting shallow layer features and deep layer features of a region corresponding to a candidate box in the pedestrian detection network, and implementing tracking; when the targets disappear, carrying out pedestrian re-identification which comprises the process of: after target disappearance information is obtained, finding images with the highest matching degrees with the disappearing targets from candidate images obtained by the pedestrian detection network and continuously tracking; and when tracking is ended, outputting motion tracks of the pedestrian targets under multiple cameras. The features extracted by the method can overcome influence of illuminationvariations and viewing angle variations; moreover, for both the tracking and pedestrian re-identification parts, the features are extracted from the pedestrian detection network; pedestrian detection, multi-target tracking and pedestrian re-identification are organically fused; and accurate cross-camera pedestrian detection and tracking in a large-range scene are implemented.

A method for adjusting the modulating frequency and the intensity of the IR illumination of a Time of Flight measurement system proportionally to the speed of movement and the ambient light level of the TOF system, thus adjusting the range of vision of the system dependent on speed. In an alternate embodiment the modulating frequency of a TOF measurement system is periodically adjusted to cover a larger range of vision of the TOF.

The invention provides geopolymeric compositions, which have controllable thickening and setting times for a wide range of temperatures and a large range of geopolymer slurry densities. The geopolymer slurry compositions have good mixability and pumpability, whilst the set materials develop good compressive strength and permeability. The invention discloses a method for preparing geopolymer for oilfield cementing applications. The geopolymeric compositions according to the invention comprises a suspension comprising an aluminosilicate source, a metal silicate, an alkali activator, lightweight or heavyweight fillers and a carrier fluid wherein the suspension of said geopolymeric composition is pumped in a well and allowed to set.

The invention is directed to an apparatus and a method of separating particles, such as cells, from a heterogeneous fluid, such as blood, where the particles have a large range of sizes.

The invention relates to a power control structure comprising a switching mode power amplifier for receiving an input signal, for amplifying the received input signal and for providing the amplified signal as output signal. In order to enable a power control over a large range while preserving the efficiency of the power amplifier, the structure further comprises a first control arrangement for controlling the power level of the output signal at least at higher desired power levels by adjusting a power supply provided to the switching mode power amplifier, and in addition a second control arrangement for controlling the power level of the output signal at least at lower desired power levels by adjusting the power of the input signal before it is provided to the switching mode power amplifier. The invention relates equally to a corresponding method.

A custom-fabricated golf club device comprising a golf club head with a recessed portion located at the front heel portion of the head and machined therein, the recessed portion comprising a substantially semi-spherical aperture. A hosel assembly has a lower portion, having a substantially semi-spherical aperture that aligns with the aperture of the head recessed portion, the hosel assembly further having a recessed portion at an upper portion thereof. A steel ball is located securely within the aperture of head recessed portion and the aperture of the hosel assembly lower portion, functioning to provide positive location of the club head and hosel assembly. In the preferred mode, a permanent weldment functions to securely affix the lower portion of the hosel assembly to the club head at the heel portion of the club head. The device is utilized in conjunction with golf clubs of both the iron and wedge variety to provide a cost-effective and convenient way to custom-fabricate golf clubs to the unique physical characteristics of individual players. By taking advantage of machining, rather than forging or casting the components, a wide range of lie angles with precise resolution can be achieved. In addition, the manufacturing techniques of the present invention diligently conform to the USGA rule that clubs other than putters shall not be designed to be adjustable except for weight.

A hybrid block matching prediction and transform based n dimensional signal sequence encoder, including an encoder motion estimator, having a cost function. A first embodiment includes an entropy-based cost function. A second embodiment includes a fast block matching search (motion estimation) method to learn the results from neighboring blocks and perform a large range search with only a small number of points to visit. A third embodiment includes a method to dynamically adjust the cost function parameters and other selected coding control parameters based on encoder outputs to optimize the quality and performance of the encoder. A fourth embodiment includes a method to enable exploring and rapid processing of fractional grid points for n dimensional block matching search (motion estimation). A fifth embodiment includes a hybrid block matching prediction and transform-based n dimensional signal sequence decoder.

The present invention is directed to membranes composed of heterocyclic nitrogen groups, such as vinylpyridine and to electrochemical sensors equipped with such membranes. The membranes are useful in limiting the diffusion of an analyte to a working electrode in an electrochemical sensor so that the sensor does not saturate and / or remains linearly responsive over a large range of analyte concentrations. Electrochemical sensors equipped with membranes described herein demonstrate considerable sensitivity and stability, and a large signal-to-noise ratio, in a variety of conditions.

The invention discloses a mobile robot indoor positioning system based on an infrared road sign. The system is structurally characterized in that: a dot matrix road sign is manufactured by using an infrared emitting diode and is adhered to an indoor ceiling; a wide-angle infrared camera is fixed on the body of a mobile robot to shoot the infrared road sign upwards; and a computer on the body of the robot performs image analysis and calculates out the position and pose of the robot in real time. The positioning system disclosed by the invention can be used for the positioning of the mobile robot at indoor places with a relatively large range, and has the characteristics of fast calculation speed, high positioning accuracy and strong anti-interference performance.

A method is provided for detecting spot defects on an object when an allowable variation (called the “background”) in the appearance of the object can be modeled. Methods are also provided for measuring and classifying detected spot defects. An alignment model is used to align the image of the object, a background model is then used to estimate the (possibly different) background in each region, and each background is substantially removed from the image so as to form a foreground image on which blob analysis can be applied to detect spot defects, the blob analysis using a threshold image that accommodates different noise statistics for each region. The method facilitates robust spot defect inspection of fiber optic end faces, or of any object with different object regions. The method also allows use of blob analysis over a larger range of conditions, including conditions that make simple blob analysis infeasible.

The present invention discloses an improvement in coaxial compression connectors used in, inter alia, CATV, satellite, and home theater electronics. The present connectors accept a large range of cable sizes, allow replacement of the holding or compression element to accommodate a range of sizes, and allow the connector to be re-uesable. The connector comprises an attachment nut operable for electrically connecting the coaxial cable to another device, a tubular shank attached to the connector nut operable for accepting the dielectric layer of the coaxial cable therewithin, a body portion connecting the nut and tubular shank, a compression ring and an outer shell. In a first embodiment, the compression ring is a relatively short tubular member removably housed within the outer shell. The compression ring has an annular compression groove on the outer circumference thereof which causes a mid-portion of the ring to deform inwardly in response to a longitudinal force applied to opposing ends of the compression ring to securely hold the cable within the connector and create a 360 degree moisture seal. In a second embodiment, the body portion deforms inwardly. In both embodiments, a shoulder within the shell abuts the trailing end of the compressive member and exerts a longitudinal compression force thereon that causes the compressive member to circumferentially buckle inwardly against the cable.

The invention provides a method for detecting traffic state based on mobile phone signals. A virtual sensor network is set up to acquire the real-time signal data sent from all mobile phones within a time interval from a mobile phone network at a fixed time interval, a virtual sensor section and the traveling speed vi can be obtained according to the real-time signal data sent from an i-th mobile phone; the virtual sensor section is superposed onto a road network to obtain the road network section and the traveling speed Vi of the i-th mobile phone; a real-time traffic flow intensity K and a section traffic flow Q can be obtained by collecting the number n of the mobile phones on each road network section and the traveling speed V of each road network section; and finally, through a traffic parameter prediction model, the predicted traffic flow speed V, the traffic flow intensity K and the section traffic flow Q can be obtained. The method has the advantages that the large range of real-time traffic data acquisition in the city can be completed in a short time by fully relying on the existing mobile communication network resources, and utilizing the information in the existing mobile phone communication network, meanwhile, the initial investment is relatively small, the data coverage is wide, and data accuracy is high.

The invention discloses an oscillatory scanning laser beam-electric arc hybrid welding method and system. Laser beams and electric arc move together along an abutted seam in large range space, simultaneously the laser beams surround acting points of the electric arc to perform oscillatory scanning movement in a local small area, and an actual welding track is a curve formed by overlying two types of movements. As for an optimal range of laser beam oscillatory scanning displacement, the range in the direction of an X axis is minus 2mm to 3mm, the range in the direction of an Y axis is minus 5mm to 5mm, the range in the direction of a Z axis is minus 2mm to 2mm, and the oscillation frequency is in a range from 20Hz to 500Hz. According to the method and the system, an enhanced technical effect is achieved by the aid of interaction of a laser beam oscillatory scanning effect and a laser-electric arc synergistic effect, and the welding quality is improved. Compared with existing laser-electric arc hybrid welding and laser scanning welding methods and systems, the method and the system have the advantages that higher weld porosity inhibiting capability is achieved, and the weld strength is improved by 10% to 50%.

The invention discloses a method for predicting an hourly cooling load of a central air-conditioner in an office building on line based on indoor temperature and humidity parameters. The method for predicting the cooling load comprises the following steps of: performing time sequence prediction on outdoor meteorological parameters and air-conditioner operation input parameters, establishing an Online support vector regression (SVR) dynamic prediction model of the air-conditioner cooling load by using the data, predicting 24-hour air-conditioner cooling load in the current day in advance, and performing compensation by using a residual sequence of the actual value and the predication value of the 24-hour air-conditioner load in the previous day. The predication data of the air-conditioner cooling load prediction model established by the method is high in reliability; and the method can be applied to occasions for prediction of the hourly cooling load of the central air-conditioner in the office building in a single building or a large range, energy-saving control of a central air-conditioner system, energy consumption prediction of the air-conditioner, power peak clipping in areas and the like.

The invention discloses an unmanned-device-based water quality patrolling, contaminant originating system and a method thereof, wherein the system comprises an unmanned plane, an unmanned ship and a shore-based monitoring system. The unmanned ship carrying a water quality detection device is capable of performing on-line detection of water quality across a water area at which the unmanned ship is located. The unmanned ship carries a small-sized unmanned plane, and a ship body thereof provides docking and charging device for the unmanned plane, thereby achieving a wide patrolling range of the unmanned plane. Both the unmanned ship and the unmanned plane are equipped with an HD (High-Definition) video monitoring system for separately achieving a water surface patrolling function. The invention provides a brand new water quality monitoring approaches by means of carrying theunmanned plane on the unmanned ship for patrolling a polluted water area in a space formula manner. A combination of the unmanned plane and the unmanned ship uses a characteristic of a wide view of the unmanned plane, to further achieve tracking of a pollution source, and also better compensates for defects of separate patrol of the unmanned ship or unmanned plane, thereby facilitating high efficiency and precision of water quality monitoring, and improving informationalized level of water quality monitoring.

The invention provides a monitoring video fusion system and a monitoring video fusion method based on a three-dimension space scene. Video frames are extracted from a monitoring video data stream and are projected to a three-dimension space scene so as to realize full-space-time stereo fusion of video data and three-dimension scene data and change a traditional mode in which a map application can only be statically displayed; and a plurality of channels of real-time monitoring videos deployed in different geographic locations and a three-dimension model in a monitoring area are registered and fused so as to generate a large-range three-dimension panoramic dynamic monitoring picture and realize real-time global control on the overall security situation of the monitoring area.

A device to provide hyperspectral reflection spectrum, hyperspectral depolarization, and hyperspectral fluorescence spectrum data in a portable, remote sensing instrument. The device can provide a large range of remotely-sensed optical property data, presently only obtainable in laboratories, in a low-cost field instrument. Among its many uses, the present invention can be used by farmers as a tool for determining the nitrogen content of crops to optimize fertilizer laydown.

Disclosed are virtual reality systems, in particular immersive virtual reality systems, their parts, construction and use. The systems and / or parts thereof may be used by adults or children, and may be adapted to support, often within a single device, a large range of users of different sizes and medical condition. Users with physical disabilities have difficulties using existing immersive technologies such as those using accessories like head-mounted displays and data gloves. Such users are provided with immersive virtual reality outputs that allow them to see virtual representations of their body parts which appear in a correct spatial position relative to the users' viewpoint.