68 results about "Marine navigation" patented technology

A holding device. The holding device can hold portable objects such as MP3 players, mobile phones, navigation devices, etc. The holding device has one or more arms, which can grip the portable object. In predetermined orientations, one arm is prevented from moving outward, to prevent the held portable object from falling even when it is being inserted or removed from the holder.

The invention discloses a system optimization method and device of ship operation energy efficiency. The method comprises the steps of data acquisition, mathematical model establishment, analysis and calculation, output and execution; namely, acquiring speed over water and speed over ground of the ship, real-time rotating speed and instant oil consumption of ship main engine; when the ship is in much deeper water, establishing a mathematical model between the real-time rotating speed of the ship main engine and the ship speed over water and a mathematical model between the real-time rotating speed of the ship main engine and the instant oil consumption of the ship main engine; analyzing and calculating the mathematical models under different water flow velocities and different main engine rotating speeds to obtain the ship kilometer oil consumption valves of the ship corresponding to different conditions; displaying the ship kilometer oil consumption value and the corresponding main engine rotating speed to guide the operation. The method also includes a ship technical state judging and navigation operating optimizing method. The device comprises a central processer and a memory thereof, a data acquisition equipment, man-machine conversation equipment, output equipment, a power supply unit and the like.

The invention relates to an uncalibration machine vision-based intelligent navigation control system and an uncalibration machine vision-based intelligent navigation control method, and belongs to the technical field of automation and detection. In order to overcome the disadvantage that whether a technical effect is good or bad depends on uncalibration parameters in a conventional scheme, in vision system-based mobile robot real-time obstacle avoidance and a navigation control method in the technical scheme of the invention, an image is automatically acquired and analyzed for the purpose of realizing the control of a mobile robot platform; the image is processed rapidly from image feedback information obtained directly by utilizing the principal of machine vision; and feedback information is given in a time as short as possible for participating in the generation of a control decision so as to form the position closed-loop control of an end effector of the mobile robot. The scheme improves the adaptability and the work efficiency of a robot, effectively maintains the speed and the precision in an image processing process, enhances the robustness and the stability of a robot control system, and reduces cost input and energy consumption in an implementation process of the technical scheme.

A method and system for determining a location of a vehicle, the method comprises determining reception location data within a first cell of a work area for a vehicle. A reception quality estimator estimates reception quality data for the corresponding reception location data for the first cell. Optical location data is determined within a first cell of a work area for a vehicle. An optical quality estimator estimates optical quality data for the corresponding optical location data for the first cell. A data processor selects at least one of the reception location data and the optical location data as refined location data associated with the first cell based on the estimated reception quality data and estimated optical quality data.

The invention discloses a picture navigation method and corresponding picture navigation equipment and picture navigation system. The picture navigation method comprises the following steps of: acquiring pictures with position information; selecting one picture, and using the corresponding position information of the picture as a navigation destination; determining starting position information; and determining a navigation route according to the corresponding position information of the picture and the starting position information. The picture navigation method disclosed by the invention has the advantages that the position information of a picture shooting site can be automatically obtained after acquiring the picture with the position information and selecting one picture, then the navigation route between the picture shooting site and the starting position is obtained by utilizing the corresponding position information, so that convenient and fast effects are achieved, and the entertainment is strong.

The invention provides a ground station control system for a universal unmanned aerial vehicle. The ground station control system adopts a modular design and specifically comprises a navigation display module, a flight path managing and task planning module, au unmanned aerial vehicle instrument and state display module, a flying simulating module, a wireless monitoring and visual simulating module and human-computer interaction equipment. The ground station control system for the universal unmanned aerial vehicle, provided by the invention, has the characteristics of being complete in functions, simple to operate and convenient to carry and is wide in portability and universality.

The invention provides a vehicle-mounted navigation system. The vehicle-mounted navigation system comprises a vehicle-mounted GPS (Global Positioning System) antenna, a camera, an AR (Augmented Reality) head-up display and a vehicle-mounted navigation host, wherein the vehicle-mounted GPS antenna is used for locating and obtaining a world coordinate system; the camera is used for carrying out real-time image collection on a road condition ahead; the vehicle-mounted navigation host comprises a coordinate system conversion unit which is used for carrying out image recognition and analysis on a road condition image collected by the camera and converting the world coordinate system to a camera image coordinate system, a model generating unit which is used for generating a 3D (Three-dimension) model of a marching road according to the camera image coordinate system, a virtual navigation information generating unit which is used for generating virtual navigation indicating information according to the 3D model of the marching road and an output unit which is used for outputting the virtual navigation indicating information to the AR head-up display; the AR head-up display is used for projecting the virtual navigation indicating information to a windshield and realizing the effect of overlaying the virtual navigation indicating information to an actual road.

In accordance with one or more embodiments of the present disclosure, methods and apparatus are provided for flexible and user-friendly navigation of loaded media in a multi-media presentation, such that a user may be able to view and/or edit the presentation. In one embodiment, a method for navigating loaded media comprises loading a page of a collage document to a client device, the page having a plurality of layers with each layer being associated with a media object. The method further includes creating a list of layers of the loaded page, each layer indexed by at least a position in the collage document; navigating the collage document in at least one direction and at at least one speed based on user input; and filtering the list of layers based on at least the position in the collage document and a visual window of a user interface to display visible layers of the page within the visual window. A client device for navigating loaded media is also disclosed.

A multicomponent induction logging tool is used on a MWD bottomhole assembly. Multifrequency focusing that accounts for the finite, nonzero, conductivity of the mandrel is applied. Using separation of modes, the principal components and a direction of a conductivity tensor are determined. The results are used for reservoir navigation in earth formations. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b)

Medical devices such as catheter-based technologies for therapeutic interventions in the coronary arterial circulation and other vascular beds are presented. Apparatus, systems and methods for improving the performance and/or operability of catheter navigation through a vascular pathway are presented. Deliverability of vascular therapeutic devices is improved through mechanical catheter control systems.

The invention relates to the technical field of indoor location and navigation and specifically relates to an indoor pedestrian locating system for counting steps based on magnetic field features and accelerated velocity information. The indoor pedestrian locating system comprises a magnetic field and accelerated velocity sensor data acquisition module, an accelerated velocity sensor step counting module, a magnetic field projection module, a magnetic field database training module, an inert sensor and magnetic field fusion module, a geomagnetic matching locating module and an outputting module. According to the indoor pedestrian locating system disclosed by the invention, magnetic field information and accelerated velocity information can be obtained by the magnetic field and accelerated velocity sensor data acquisition module; a magnetic field intensity sequence of a pedestrian in moving can be obtained by the accelerated velocity sensor step counting module, the magnetic field projection module and the inert sensor and magnetic field fusion module; magnetic field data are matched in the geomagnetic matching locating module and the magnetic field database training module to obtain locating results; thus, location can be achieved without installing extra signal emission equipment.

The invention is applicable to the technical field of medical image processing and application, and provides a marker point registration method and device and a surgical navigation system. The method comprises that a space positioning error of each physical space marker point is calculated according to physical coordinate values of physical space marker points obtained many times and the average value of the physical coordinate values; a weight matrix of the physical space marker point is calculated according to the space positioning error; according to the average value of the physical coordinate values of the physical space marker points, and the average value of image coordinate values of the image space marker points, by combining the weight matrix, under the premise that the minimum marker point registration error FRE is ensured, a translation vector t and a rotation matrix R are solved by an iterative method. According to the utility model, the anisotropic nature of the space positioning error of the optical positioning system can be fully considered, so that the navigation accuracy of the entire surgical navigation is improved finally.

The invention discloses an intelligent underwater combined navigation fault diagnosis method which comprises the following steps: classifying faults of an underwater combined navigation system into a noise burst type system fault, an information burst type system fault and an information gradual change type system fault; judging whether the burst type system fault happens or not by using an improved residual*2 detection method; if the burst type fault happens, isolating a fault subsystem; calculating an average residual value and a residual absolute sum value, and judging whether the system has the noise burst type system fault or the information burst type system fault according to the calculation result, so as to make a preparation for system reconstruction after the fault of the fault subsystem is eliminated; and calculating an average normalization residual value and an adjacent statistic period residual absolute sum value, and judging whether the gradual change type fault happens or not according to the calculation result. By adopting the method, the defect that a fault detection system judges a fault system as a non-fault system by mistake because of the tracking characteristics of a filter is avoided, and meanwhile, various faults in the underwater combined navigation system can be rapidly and accurately judged.

A crop yield per location measurer is disclosed. In general, the crop yield measurer includes a crop collector for a field of crops. The crop collector includes a navigation satellite system location determiner to determine location information at periodic times during a crop collection process. The crop collector also includes an optical mechanism to optically determine a volume of collected crops at the periodic times during the crop collection process. In addition, a database is used for storing the location information and the volume at the periodic times during the crop collection process. A crop yield overview generator is then utilized to provide a user accessible crop yield per location overview for the field of crops based on the information stored at the database.

The present invention relates to a black box system for a leisure vessel and, more particularly, to a black box system for a leisure vessel which has a marine black box to interface a GPS receiving unit with various kinds of navigation data measuring devices and a camera unit, thereby checking problems in the vessel in real time, and which executes information stored in a portable memory with a marine black box application via a smart terminal to output the information on a display screen and to simultaneously store images and data at the time of an accident in a data storage server provided on land, thereby increasing portability and analyzing navigation data and images for a vessel when the vessel has been lost due to an unexpected accident.

The invention aims at providing a handheld electronic device with a three-dimensional object. The side surface of the handheld electronic device is provided with an optical finger navigation device, the optical finger navigation device is used for operating and controlling the three-dimensional object, and higher operation and control simulation performance can be obtained.