987 results about "Spatial positioning" patented technology

A telemetry system and method for providing spatial positioning information from within a patient's body are disclosed. The system includes at least one implantable telemetry unit which includes (a) at least one first transducer being for converting a power signal received from outside the body, into electrical power for powering the at least one implantable telemetry unit; (b) at least one second transducer being for receiving a positioning field signal being received from outside the body; and (c) at least one third transducer being for transmitting a locating signal transmittable outside the body in response to the positioning field signal.

An electrosurgical medical device and method for creating thermal welds in engaged tissue. In one embodiment, at least one jaw of the instrument defines a tissue engagement plane carrying a variable resistive body of a positive temperature coefficient material that has a selected decreased electrical conductance at each selected increased temperature thereof over a targeted treatment range. The variable resistive body can be engineered to bracket a targeted thermal treatment range, for example about 60° C. to 80° C., at which tissue welding can be accomplished. In one mode of operation, the engagement plane will automatically modulate and spatially localize ohmic heating within the engaged tissue from Rf energy application across micron-scale portions of the engagement surface. In another mode of operation, a variable resistive body will focus conductive heating in a selected portion of the engagement surface.

A method and system for determining orientation and positioning of a vehicle trailer. A digital camera is placed on a vehicle. The camera is pointed to a trailer attached to the vehicle. The camera acquires images of the trailer. These images are processed and spatial positioning and orientation of the trailer is determined based on image processing. A special marker visible by the camera is set on the trailer. Relative positions of devices attached to the vehicle—global positioning receiver, spatial orientation measuring device and the digital camera are measured. When each digital frame is formed, coordinates and orientation data of the camera are measured. Pixels corresponding to the marker in the image are determined. A simplified copy of the image, containing only the data related to the marker pixels, is generated. The marker pixels are used for calculating position and azimuth orientation of the marker. The azimuth orientation of the trailer is calculated based on calculated azimuth orientation of the marker.

The invention discloses a real-time spatial positioning method for a mobile monitoring target in a geographical scene, which aims at solving the problems of great difficulty, time consumption and the like due to the fact that spatial positioning of a target in a video monitoring system requires artificial interpretation. The method comprises the steps of adopting a three-dimensional scene modeling technology, constructing a three-dimensional virtual geographical scene virtual imaging and a target spatial positioning computing system, rendering the existing high-precision digital elevation model or a three-dimensional scene model of a monitoring area, generating a three-dimensional virtual scene, setting parameters such as positions, postures and focal distances of cameras in a shooting process of each video image as virtual camera parameters in the scene according to a consistency relation between OpenGL (Open Graphics Library) perspective imaging and a photogrammetric principle, generating a simulated image, and reversely deducing three-dimensional geographic coordinates of the target according to consistency of the video image and the simulated image, and a reverse process of the perspective imaging. According to the real-time spatial positioning method, the quick positioning of a field mobile target can be achieved by utilizing a video monitoring image in a wide-range geographic environment.

The invention relates to an indoor and outdoor seamless positioning system integrated with satellite navigation and a bluetooth technology, and a method thereof. The system comprises an outdoor satellite positioning module, an indoor bluetooth positioning module, an indoor and outdoor positioning fusion switchover module, and an electronic map display module. The outdoor satellite positioning module performs outdoor positioning by using GPS or Beidou Satellite navigation terminals. The indoor bluetooth positioning module performs indoor positioning by using a field intensity attenuation principle and a three-dimensional spatial positioning algorithm. The indoor and outdoor positioning fusion switchover module performs fusion, switchover, and integration on indoor and outdoor positioning methods according to strength of indoor and outdoor positioning communication signals and based on a federated kalman filter, so as to realize smooth transition of indoor and outdoor positioning. The electronic map display module displays positioning results based on two-dimensional electronic maps or indoor plane graphs, and three-dimensional building model scene graphs. The system can provide an indoor and outdoor integrated positioning function for intelligent mobile devices, and positioning speed is fast, and positioning precision is high.

The present invention enables the processing head to locate itself precisely on the surface of the structure being processed, and to then reposition itself correctly for the next laser spot. Further, the present invention will complete processing a laser peened area, the area including a multiplicity of spots arranged in a specific pattern, and correctly laser peen each spot in the area under control of a controller including control linkages with the laser.

The invention further provides an automated laser peening processing head encompassing spatial position sensing and locating means, as well as programmed spatial positioning, application of overlay materials, verification of proper overlay condition and positioning, and notification of the laser to pulse the surface of the structure.

A method and system for simulating a wireless environment is provided including a central RF combining component; a plurality of connection nodes, each connection node in RF connection with the central RF combining component through a programmable attenuation component; wherein the programmable attenuation components are controlled by a controller console, the controller console maintaining information regarding simulated spatial positioning of the plurality of connection nodes in the simulated wireless environment, and adjusting the programmable attenuation components to appropriately simulate the simulated spatial positioning of the connection nodes in the simulated wireless environment. Additionally, an RF module for creating and receiving RF signals in a test environment is provided.

The invention provides a SRP-PHAT multi-source spatial positioning method. The method comprises the steps that the number and spatial positions of all microphones in a uniform circular microphone array are assumed to be unchanged in the data obtaining process at first, the isotropous microphones are evenly distributed on a circumference which has the radius r and is located on an x-y plane, the direction of arrival of a plane wave s is expressed by polar coordinates, the original point of the coordinate system is located on a circle center position of the circular array, multiple sound source signals are divided into non-overlapped time frequency point sets, each time frequency window contains only one movable source signal, and weak W orthogonal separation conditions are met; a Hamming window is selected, a controllable response power function is calculated and a target function is obtained through a SRP-PHAT algorithm, wave beams are controlled to carry out scanning in all the possible receiving directions, and the wave beams output the direction value with the maximum power to obtain the direction of a sound source, so that the DOA estimation of the multiple sound sources has the better separating performance in the strong noise and moderate reverberation acoustic environment, the real peak value is obviously outstanding, and high positioning precision is achieved.

The invention refers to a system to treat and/or diagnose a patient's eye. The system in this invention comprises several devices for the treatment and/or diagnosis of the eye as well as means for the logical linking of the devices with each other, such as systems for the spatial positioning of the devices relative to each other, configurations for the positioning of the patient and the eye to be treated relative to the respective devices, systems for the controlled supply of the devices with power and auxiliary power, and/or notification tools to transmit information or control commands between the above-mentioned devices, units, configurations and systems, and to put out information.

A system is disclosed that determines a spatial position of a tracker device relative to an object sending a return signal to the tracker. Such a system advantageously maintains phase accuracy between a forward signal from the tracker device and the return signal generator from the object. The system can include, as part of a tracker device, a reference signal generator, a transmitter, a receiver, and a spatial position computer. The reference signal generator is responsive to and phase-stabilized by a broadcast signal, e.g., a signal received from a commercial AM broadcast transmitter. The transmitter and receiver are both coupled to and phase-stabilized by the tracker reference signal generator. Variations and methods with different advantageous features are also described.

The invention relates to a reality-mixed helmet display system and a control method thereof. The helmet display system comprises a helmet display body and a peripheral matched attachment, wherein the peripheral matched attachment includes monochromatic background equipment; the helmet display body comprises a real scene collection module used for collecting true real scene data of an outside world in real time, a virtual scene generating module used for generating a virtual scene, an image fusion module used for overlapping a real scene and the virtual scene, a spatial positioning module used for collecting spatial position information in real time, and an image display module used for displaying a virtuality and reality combined image. According to the reality-mixed helmet display system and the control method thereof, after the real scene data are subjected to background transparency processing, the real scene data are overlapped with the virtual scene; the scene adaptability is good; the real scene, especially operations of hands can be observed through mixing a reality so that a user can link a real object and a virtual world; and the virtual world and the real world are perfectly combined, the sense of immersion is strong and the real sense experience is available.

The embodiment of the invention provides a spatial positioning method and device, electronic equipment and a computer readable storage medium, and relates to the technical field of the big data. The spatial positioning method can be applied to intelligent equipment comprising an image collection device and an inertial measurement device, and comprises the following steps: acquiring image collection device pose information corresponding to the current frame image; optimizing the image collection device pose information corresponding to the current frame image according to the image collection device pose information corresponding to a key frame image, feature point description information and the inertia information; and acquiring the spatial positioning of the current frame image accordingto the optimized image collection device pose information corresponding to the current frame image and the image collection device pose information corresponding to the key frame image. The spatial positioning precision and positioning effect can be improved through the spatial positioning method provided by the invention.

The invention discloses a stereoscopic vision optical tracking system aiming at multipoint targets, which belongs to the field of the mechanical vision and positioning tracking technique. The stereoscopic vision optical tracking system utilizes a mode based on hardware realization, utilizes a binocular camera to acquire targets and original images of the background, adopts a parallel pipeline to identify and mark the targets rapidly and utilizes a dual-core digital signal processor to perform parallel operation, and then space positioning and tracking of the target is completed. The parallel pipeline processing and the dual-core serial computing are combined, and then hardware resources are allocated reasonably according to different algorithm characteristics. The stereoscopic vision optical tracking system is free of constraint of a PC or working station and breaks through the bottleneck of software computing resources of the PC or working station. In addition, the system can perform real-time positioning and tracking on multipoint targets in space in different illumination environments with different target illumination strengths, and can real-time track over 100 point targets in space in a non-drop frame form. Tracking precision of the system can reach 0.5mm RMS.

The invention relates to an autonomous navigation and man-machine coordination catching operating system of a benthic organism catching robot, which comprises a catching robot, a computer used for carrying out comprehensive analysis processing and judgment on catching site and the state of the catching robot and used for providing remote intervention and management for catching management personnel in man-machine coordination catching operation, a mother ship used for carrying the management personnel and collecting and transporting catching objects, and a GPS (Global Positioning System) used for positioning the spatial location of the mother ship; information interaction is carried out between Agent in the catching robot and the mother ship on the water surface, and the actions of benthic walking, identification and space orientation of the catching objects, control catching and the like are autonomously finished. The autonomous navigation and man-machine coordination catching operating system of the benthic organism catching robot is simple in mechanism, low in control complexity, limited in intelligentization, high in catching efficiency, good in environmental suitability and low in manufacturing and maintenance costs, and can pointedly realize catching.

The invention relates to a substation illegal line-crossing prompting method based on ultra-wideband (UWB) positioning. The method comprises: a safe area of a device is drawn in a substation three-dimensional model and a visual three-dimensional electronic fence is formed; UWB positioning system deployment is carried out in the substation; according to a content of a work ticket, a corresponding working area is drawn; a staff member in the substation wears a spatial positioning device; a background carries out calculation to obtain the real-time position of the staff member; the background carries out comparison with safety fence boundary data to calculate whether someone approaches or crosses a safety distance and a corresponding working range; if any early-warning or line-crossing behavior is made, the information is sent to a smart watch worn by the staff member; the information is sent to an administrator background; and the background records data including the person doing alarming, lasting time, and a walking path of the alarm event. Therefore, the staff member and the administrator are prompted effectively; and the background records the line-crossing behavior so as to carry out follow-up work and analysis conveniently.

The invention relates to a video analysis-based space positioning method. The method comprises the following steps: 1, obtaining and storing coordinate information, parameter information and relevant attribute information of a plurality of cameras in a range; 2, obtaining and storing video data containing a target; 3, searching the video data containing the target according to the characteristic information of the target; 4, obtaining and storing the coordinate information of the target at every moment in real time according to the information of the position of the target relative to the cameras, and the position coordinate information, the parameter information and relevant attribute information of the cameras; and 5, obtaining the motion locus of the target according to the coordinate information of the target at every moment. The method fully utilizes the dense monitoring facility laid in the city scene, can rapidly position the accurate position of the target, can obtain the motion locus of the monitored target within a period of time, solves the accurate positioning problem in the complex city scene, and avoids the position description complexity existing in simple latitude and longitude positioning.

The invention discloses a space positioning device and positioning method used in a VR (virtual reality) system. The device comprises a camera posture calibration module, a camera posture fixing module, an initialized image collecting processing module and a continuous image processing module, wherein one or more than one camera is worn on the human body; the camera is fixed on the human body positions; in the human body moving process, the continuously collected image is subjected to image processing; the movement of the camera in the axial direction and the moving distance and direction of the camera in the plane vertical to the axial line are obtained through calculation; the human body displacement is obtained. Therefore the space positioning in the VR system is realized. By using the technical scheme, the positioning device and the positioning method have the advantages that peripheral equipment such as arrangement cameras in VR positioning scenes can be simplified, and the use is more convenient.

The invention discloses a space locating method that is based on a network of planar dual-rotation laser transmitters, the rotation of three or more than three rotating transmitters are driven by an alternate current servo motor, the rotating transmitters that have two linear laser devices arranged on the head part transmit laser signals continuously to the surrounding space, the time distance of OZ pulse between a laser peak position that is sampled by a receiver module that takes a photocell as a sensor and a time origin is converted into a rotating angle of a laser plane, and consequently, the equation of the laser plane where measured points are positioned is deduced, an equation of a straight line that runs through the measured points is further obtained, an equation set is built according to the intersection method of multiple lines, and finally the equation set is solved by the least square method, thus obtaining the coordinate positions of the measured points. The space locating method avoids object aiming when measuring, and improves measuring speed and efficiency.

The present invention discloses a quick three-dimensional sampling method for physical data of a building. The present invention adopts a miniature unmanned aircraft to load corresponding types of sensing devices, data recording devices and information returning devices, etc., so as to acquire the physical data (intensity of sound, audio, temperature, humidity, illuminance, light color, gas components, electromagnetic field intensity, air-ion concentration, radiation strength, etc.) and carry out round trip flight in space and continuously acquire the physical data at each point of the path, and position the miniature aircraft by a photogrametry technology. The method concretely comprises the steps of: selection of the miniature unmanned aircraft for indoor flight, selection of sensing devices or sensors for sampling the physical data of the building, establishment of a system synchronous clock, sampling of the physical data of the building and accurate spatial positioning for the sampling points by a close-range photogrammetry method. Since the aircraft is fast in moving speed and is not restricted by the ground movement condition, the isochronism of the data can be ensured even if the number of the spatial sampling is largely increased than that of the ground operations.