379results about How to "Precise Navigation" patented technology

A surgical robotic system automatically calibrates tubular and flexible surgical tools such as endoscopes. By compensating for unideal behavior of an endoscope, the surgical robotic system can accurately model motions of the endoscope and navigate the endoscope while performing a surgical procedure on a patient. During calibration, the surgical robotic system moves the endoscope to a target position and receives data describing an actual position and / or orientation of the endoscope. The surgical robotic system determines gain values based at least on the discrepancy between the target position and the actual position. The endoscope can include tubular components referred to as a sheath and leader. An instrument device manipulator of the surgical robotic system actuates pull wires coupled to the sheath and / or the leader, which causes the endoscope to articulate.

A combined electrical and chemical stimulation lead is especially adapted for providing treatment to the spine and nervous system. The stimulation lead includes electrodes that may be selectively positioned along various portions of the stimulation lead in order to precisely direct electrical energy to ablate or electrically stimulate the target tissue. Embodiments of the stimulation lead include single or multiple lead elements. The multiple lead element embodiments can be selectively deployed to cover a targeted area. The lead may also includes central infusion passageway(s) or lumen(s) that communicates with various infusion ports spaced at selected locations along the lead to thereby direct the infusion of nutrients / chemicals to the target tissue. Some embodiments utilize a disposable sheath in combination with a reusable stimulation lead.

A combined electrical and chemical stimulation lead is especially adapted for providing treatment to the spine and nervous system. The stimulation lead includes electrodes that may be selectively positioned along various portions of the stimulation lead in order to precisely direct electrical energy to ablate or electrically stimulate the target tissue. The invention also includes a method of activating electrodes in the electrical stimulation lead whereby an ablative lesion can be formed in a desired shape and size. The invention further includes a method of managing pain in a sacrum of a patient, and a method of assembling an electrical stimulation device.

A system for navigating a medical device through the lumens and cavities in an operating region in a subject, comprising an imaging system for displaying an image of the operating region, including a representation of the distal end of the medical device in the operating region. The system also includes a localization system for determining the position of the medical device in a frame of reference translatable to the displayed image. Finally, the system includes an algorithm for evaluating one or more rotation matrix using a cost function to determine an optimum rotation matrix for performing transformation of a vector in the local frame of the localization system to that of the reference frame of the navigation system. The rotation matrix can then provide a scale invariant transformation or “registration” of the coordinate systems of the localization system and the navigation system. This allows navigation to be performed to a significant extent from the localization system display alone, which avoids the frequent x-ray irradiation that occurs during the use of fluoro imaging for navigation purposes.

A navigation apparatus with image recognition, includes: an imaging section for obtaining a stereo image of a target spot; an inertial information detecting section for measuring an attitude angle of a body and an acceleration of the body; an image process calculating section for calculating a relative position of the body with respect to the target spot based on the stereo image and the attitude angle; and a navigation calculating section for calculating navigation information based on the attitude angle, the acceleration and the relative position.

A combined electrical and chemical stimulation lead is especially adapted for providing treatment to the spine and nervous system. The stimulation lead includes electrodes that may be selectively positioned along various portions of the stimulation lead in order to precisely direct electrical energy to ablate or electrically stimulate the target tissue. The invention also includes a method of activating electrodes in the electrical stimulation lead whereby an ablative lesion can be formed in a desired shape and size. The invention further includes a method of managing pain in a sacrum of a patient, and a method of assembling an electrical stimulation device.

The present invention discloses a robotic manipulator, comprising at least one joint, each joint having a drive axis and at least one microelectromechanical system (MEMS) inertial sensor aligned with at least one drive axis providing sensing of a relative position of the drive axis. The robotic manipulator can include an inertial measurement unit (IMU) coupled to the robotic manipulator for determining the end effector position and orientation. A controller can be used, receiving a signal from at least one MEMS inertial sensor and controlling at least one joint drive axis in response to the signal to change the relative position of the joint drive axis. Rate information from MEMS sensors can be integrated to determine the position of their respective drive axes.

The invention provides a navigation device, which comprises a receiving GPS signal, a GPS module which analyzes the GPS signal to generate GPRS navigation data, an inertial navigation module which collects inertial navigation data, a control module which calibrates the inertial navigation data and the GPS navigation data according to the GPS signal strongness or weakness determined by the GPS navigation data, and a hint module which outputs in an image or a sound mode. The invention also provides a navigation method, which comprises the steps of: receiving the GPS navigation signal, and resolving to generate the GPS navigation data; collecting the inertial navigation data; calibrating the inertial navigation data and the GPS navigation data according to the GPS signal strongness or weakness determined by the GPS navigation data, and generating the navigation information; and outputting the navigation information. The inertial navigation data and the GPS navigation data are calibrated according to the GPS signal strongness or weakness, and the navigation information is generated, therefore, the navigation accuracy can be improved.

The invention relates to an underwater vehicle navigation system, in particular to an autonomous underwater vehicle combined navigation system. The system comprises an inertia basis navigation device and an external sensor navigation device, wherein the inertia basis navigation device comprises a Doppler velocimeter, an optical fiber gyro, a pressure sensor, an electronic compass and a depthometer; and the external sensor navigation device comprises a sonar. The combined navigation system also comprises an underwater structure optical sensor and an underwater binocular vision platform, wherein the underwater structural optical sensor comprises a forward-vision structure optical sensor positioned on the front of an outer frame of an autonomous underwater vehicle, and a downward-vision structure optical sensor positioned at the bottom of the outer frame; the underwater binocular vision platform comprises a forward-vision binocular vision platform positioned on the front of the outer frame, and a downward-vision binocular vision platform positioned at the bottom of the outer frame; the forward-vision structure optical sensor and the forward-vision binocular vision platform form a forward-vision structure optical and visual system module positioned on the front of the outer frame; and the downward-vision structure optical sensor and the downward-vision binocular vision platform form a downward-vision structure optical and visual system module positioned at the bottom of the outer frame.

A combined electrical and chemical stimulation lead is especially adapted for providing treatment to the spine and nervous system. The stimulation lead includes electrodes that may be selectively positioned along various portions of the stimulation lead in order to precisely direct electrical energy to ablate or electrically stimulate the target tissue. Embodiments of the stimulation lead include single or multiple lead elements. The multiple lead element embodiments can be selectively deployed to cover a targeted area. The lead may also includes central infusion passageway(s) or lumen(s) that communicates with various infusion ports spaced at selected locations along the lead to thereby direct the infusion of nutrients / chemicals to the target tissue. One embodiment utilizes a dissolvable matrix for infusion as opposed to remote delivery through an infusion pump.

An aircraft capable of thrust-borne flight can be automatically retrieved, serviced, and launched using equipment suitable for a small vessel. For retrieval, the aircraft hovers over a base apparatus having one or more rails which bound a space into which the aircraft can safely descend. When the aircraft's measured position and velocity are appropriate, the aircraft descends promptly such that a spanwise component on the aircraft engages the rails. The teeth restrain the aircraft in position and orientation, while the rails bring the aircraft to rest. Articulation of the rails is used to park the aircraft in a servicing station. Connections for refueling, recharging, and / or functional checks are made in preparation for launch. Launch is effected by removing connections and restraints and articulating the rails to put the aircraft in an appropriate position and orientation. The aircraft uses its own thrust to climb out of the apparatus into free flight.

The invention discloses a vehicle navigation method and a vehicle navigation apparatus. One concrete embodiment mode of the method comprises the following steps: a camera acquires traffic images; whether the vehicle's current driving lane is a navigation lane or not is judged, and the navigation lane is the vehicle's current driving lane defined in navigation information; lane objects with guiding locus objects to be displayed in a superposing manner are determined according to the judgment result, wherein the guiding locus objects are used for indicating a vehicle to drive in the current driving lane or to turn into the navigation lane; and the guiding locus objects are displayed on the determined lane object in a superposing manner. The method and the apparatus realizes superposing display of the guiding locus objects in the lane of the vehicle driving road according to the current position and the navigation route of the vehicle, so a driver is visually guided to drive the vehicle in the right lane, and the vehicle is accurately navigated.

The invention discloses an indoor navigation control system and method based on LED lighting devices. A characteristic that the LED lighting devices are widely distributed indoor and relatively fixed is used and a Wi-Fi module is arranged in each LED lighting device. Position information of each LED lighting device is stored in a position server in the name of a unique MAC address of the LED lighting device, that is, an actual geographic position of each LED lighting device is bound with the unique MAC address of the LED lighting device. When a user enters an unfamiliar building, an intelligent terminal is used to communicate with the LED lighting devices and the position server so as to acquire a node planar distribution diagram of room distribution as if a map is generated so that the system is capable of providing Wi-Fi indoor positioning and navigation more accurate than a conventional wireless router. Moreover, if the indoor navigation control system is applied to large-scale places such as supermarkets, exhibition halls and museums and the like, related promotion or tour information and the like can be pushed according to a current position of a user.

The invention provides a method and a device for detecting a barrier based on hybrid binocular vision. The method comprises the following steps of: acquiring a left view and a right view of a scene, wherein the left view is a visible light image; and the right view is a near-infrared image; acquiring visible light obviousness images and near-infrared obviousness images of the left view and the right view; comparing an obviousness mean value of the visible light obviousness images and an obviousness mean value of the near-infrared obviousness images respectively to determine the barrier areas in the left view and the right view respectively; matching the barrier area in the left view and the barrier area in the right view so as to determine the final barrier area; and analyzing the final barrier area to obtain a distance and a shape of the barrier. According the embodiment of the invention, the distance and the shape of the barrier can be accurately detected; and only a small part of areas in the left view and the right view are matched and analyzed, so calculation complexity is effectively reduced, and the method is high in detection efficiency.

The invention discloses an indoor positioning and navigation method based on scanning of an identification code. According to the method, indoor positioning is performed by adopting a manner of scanning the identification code; the identification code can be a two-dimensional code printed with plain paper, so that the manufacturing cost of the identification code is very low; the identification code is fixed on a wall of an indoor target point in a pasting manner, so that the layout is simple and does not need consume much labor cost, and the subsequent maintenance is very simple. When in navigation, the method comprises three navigation manners: 3D (three-dimensional navigation, character navigation and AR (augmented reality) navigation, especially, the AR navigation can guide directions for a user very intuitively in a virtuality and reality combination manner, so that navigation experience is greatly improved; in addition, the 3D navigation and the AR navigation have a code scanning positioning function, so that when the user deviates a navigation path, a user position can be corrected, and the navigation path can be replanned, therefore, the navigation is more accurate, the path-finding time of the user is saved, and the efficiency is improved.

A tracking device for an intramedullary pin whose spatial position is determined and / or tracked in image-guided surgery, including a reference device at a proximal end of the intramedullary pin and a medical navigation system which locates the reference device and determines the orientation of the intramedullary pin from the proximal end. A deformation detection device detects deformations of the intramedullary pin and communicates the deformations to the navigation system. Also provided is a tracking method for determining or tracking the spatial position of an intramedullary pin in image-guided surgery, and to an intramedullary pin that includes a deformation detection device.

The invention discloses an intelligent parking lot management and control system based on an RFID (Radio Frequency Identification) technique. The intelligent parking lot management and control system comprises an automobile information server, a management and control server, a carport control device, a communication network, a display navigation device, an anti-metal RFID tag, a remote distance sensor, an RFID reader and a short-message gateway, wherein the display navigation device comprises a display controller, a communication module and a display screen and is connected with the management and control server through the communication module; and the carport control device comprises a carport lock controller, a communication module and a carport lock and is connected with the management and control server through the communication module. By utilizing the system, the automobile information can be automatically acquired, so that an automobile is prevented from stopping and swiping a card when arriving and leaving a parking lot, the intelligentization degree is high, the service efficiency is improved, the management cost is reduced, mistakes caused by human factors are reduced to the maximum extent, and the use efficiency of the parking lot is greatly improved; with precise carport navigation, the parking time of an automobile owner is saved; the automobile owner can pick the automobile more conveniently as the carport is informed to the automobile owner; and the carport merely belongs to the owner and is controlled automatically with in-place distinguished guest service.

The invention relates to a robot inspection system and inspection method for a cold region transformer substation, and belongs to the robot inspection field for a transformer substation. The robot inspection system and inspection method for a cold region transformer substation solve the problem that an existing manual inspection mode for a transformer substation is low in efficiency and bad in the detection quality. The robot inspection system for a cold region transformer substation comprises a main control system, a motion control system, a sensing detection system, a wireless communication system and a failure warning system, wherein the main control system is used for task scheduling of an inspection robot, and is also used for receiving an environment perception signal, orientation data, temperature data, environmental images and pointer instrument images, and sends a motion control signal according to the environment perception signal and the orientation data; by means of comparison between the collected temperature data and a set temperature threshold, when the collected temperature data exceeds the set temperature threshold, an warning control signal is transmitted; the images in a failure type model base are matched with the received environmental images; and if the matching is successful, the instrument data of the transformer substation can be read according to the received pointer instrument images. The robot inspection system and inspection method for a cold region transformer substation are used for inspection of a transformer substation.

The invention discloses a distribution network construction and management system in villages, relating to an intelligent distribution network construction and management system in villages. The intelligent distribution network construction and management system in villages comprises a system master station, a communication network and a far-end field device, wherein the system master station comprises a communication unit, a main service system, a database platform, a remote meter reading unit, a monitoring unit, a management center and a customer service center; and the far-end field device comprises a distribution monitoring terminal, an intelligent residual current operated protective device, a reactive power compensating controller and an intelligent electric energy meter. The distribution network construction and management system provided by the invention can intelligently monitor and protect lines and equipment safety, automatically isolates and quickly restores faults, provides communication guarantee for power supply area all standing, precisely positions and navigates line equipment perambulation and service, and integrates various functions, thereby initiating a new mode for intelligent distribution network construction and management in villages and realizing the function of low-voltage remote meter reading and management of insulated intelligent village power grids with small volume, densely-covered points and short radius.

Systems and methods for indoor navigation control by LED lighting devices are provided. The indoor navigation control system includes at least two LED lighting devices each including a Wi-Fi module as a wireless access node to receive a Wi-Fi signal and to transmit the received Wi-Fi signal to an adjacent node such that nodes within a Wi-Fi signal coverage area has an access to Internet or LAN. A location server is configured to store location information of the Wi-Fi module of each LED lighting device with a unique MAC address. The at least two LED lighting devices and the location server are configured to communicate with a smart terminal to calculate a position, a moving direction, and a moving speed of an object according to the location information of each LED lighting device along with a moving time length of the object for an indoor navigation.

The present invention relates to the technical field of navigation, in particular relates to a navigation method and apparatus, and aims at solving the problems that in the prior art a type of a current road in which a driving car is or a current driveway in which the driving car is cannot be accurately positioned. The navigation method is as follows: obtaining an image of a road ahead of a driving car; detecting a driveway line of the obtained image of the road ahead of the driving car; and determining road information of the road in which the driving car is on the basis of the detected driveway line. According to the navigation method, road information of the road in which the driving car is can be accurately positioned, and by use of the road information of the road in which the positioned driving car is, such as a type of the road or the driveway, the driving car can be more accurately navigated.

To provide a technology enabling proper navigation based on positional information of a visitor and a congested state. Readers provided in a plurality of locations within an object area read a piece of identifying information from a tag of a visitor, receive the identifying information from the reading device, an input of a destination of the visitor is received, by referring to a map information storage module stored with map information within the object area including the installing locations of the reading units, a present position of the visitor whose identifying information has been read is acquired, then a congested state is obtained from an information count of the identifying information read by each of the reading units, and a route to the destination from the present position of the visitor is acquired in a way that weights (a value of) the congested state to the map information.

The embodiment of the invention discloses an aided navigation method and a terminal. The aided navigation method comprises the following steps: if communication connection is detected to be established between the terminal as well as a vehicle-mounted navigation system and a driving data recorder, acquiring navigation data monitored by the vehicle-mounted navigation system by virtue of the terminal, wherein the navigation data comprises location data and sensor data; according to driving images recorded by the driving data recorder and the biosensor data, judging whether the current road condition information meets preset conditions; if the current road condition information meets the preset conditions, starting an inertial navigation mode, and carrying out aided navigation according to the navigation data. The terminal disclosed by the embodiment of the invention can determine accurate travelling track aided navigation according to the navigation data and a driving state and can realize accurate navigation even under the condition that location information can not be acquired.

The invention relates to a multi-sensor fusion-based indoor navigation device and a multi-sensor fusion-based indoor navigation method. The method comprises the steps: building a current indoor magnetic map; measuring basic information data of the current indoor position in real time, wherein the basic information data comprises air pressure difference delta P of the current floor position relative to the ground, magnetic induction intensity time sequence and magnetic field gradient matrix time sequence on a walking route between the position at the current time and the position at the previous time, a time sequence value of XYZ three-direction accelerated speed of a human body or an AGV trolley marching on the walking route, and barrier distance of the human body or the AGV trolley marching on the walking route; fusing the basic information data, positioning the real-time position and performing straight line sectional navigation. The multi-sensor fusion-based indoor navigation device and the multi-sensor fusion-based indoor navigation method are accurate in navigation and accurate in positioning.

A system and method are provided for using a computer system to assist in planning a trajectory (960A, 960B) for a surgical insertion into a skull. The method comprises providing the computer system with a three-dimensional representation of the skull and of critical objects located within the skull, wherein the critical objects comprise anatomical features to be avoided during the surgical insertion. The method further comprises providing the computer system with a target location (770, 970) for the insertion within the skull. The method further comprises generating by the computer system a first set comprising a plurality of entry points, each entry point (760) representing a surface location on the skull, and each entry point (760) being associated (2D) with a trajectory (960A, 960B) from the entry point (760) to the target location (770, 970). The method further comprises discarding by the computer system entry points from the first set to form a second, reduced set comprising a plurality of entry points, wherein an entry point (760) is discarded from the first set of entry points if the entry point (760) has an entry angle which fails a condition for being substantially perpendicular to the skull surface. For each entry point (760) in the second set, the computer system assess the entry point (760) against a set of one or more criteria, wherein the set of one or more criteria includes a risk factor based on the separation between the critical objects and the trajectory (960A, 960B) which is associated with said entry point (760)). This risk factor may be calculated by integrating f(x) along the trajectory (960A, 960B) associated (2D) with the entry point (760), where x represents distance along the trajectory (960A, 960B) to a sample point, and f(x) is a function based on distance from the sample point at distance x to a critical object which is nearest to said sample point.

A method of navigating an agricultural vehicle, which is equipped with a 3D imaging device for imaging surroundings of the vehicle, and an image processing device, includes obtaining from the 3D imaging device frames imaging at least a part of the surroundings of the vehicle at different points of time while the vehicle is moving thus providing a chronological sequence of frames, analysing the frames, and establishing a change of pose of the vehicle using results of the analysis of at least two chronologically different frames.