669results about How to "Provide accurately" patented technology

Provided is an indoor wireless positioning system and method including: a signal receiving unit receiving first signals from wireless communication access points and measuring strengths of the received first signals and a position estimating unit estimating a current position by comparing the strengths of the first signals measured by the signal receiving unit with a table recording strengths of second signals predicted by a simulation for indoor space the system is currently positioned. Accordingly, it is possible to rapidly and accurately create a fingerprint database and calculate position information on the terminal in the terminal or the server on the basis of the database information.

A system, tracker, program product, and methods to facilitate and verify proper target alignment for radiation delivery are provided. The system includes a radiation delivery apparatus having a radiation emitter, a rotating assembly controlled by a controller, and an application computer which provides treatment delivery instructions to the controller. The system also includes a trackable body having a trackable body reference point to be positioned adjacent a surface point of a patient to determine a position of such surface point. The system also includes an apparatus to track a trackable body which has a trackable body detector to detect a position of indicators carried by the trackable body and a trackable body determiner to determine a position of the trackable body reference point. The system also includes a target alignment analyzing computer having memory and target alignment analyzing program product stored therein to aid a user of the system to make and display various patient body-surface related measurements.

The present invention is a method and system for characterizing physical space based on automatic demographics measurement, using a plurality of means for capturing images and a plurality of computer vision technologies. The present invention is called demographic-based retail space characterization (DBR). Although the disclosed method is described in the context of retail space, the present invention can be applied to any physical space that has a restricted boundary. In the present invention, the physical space characterization can comprise various types of characterization depending on the objective of the physical space, and it is one of the objectives of the present invention to provide the automatic demographic composition measurement to facilitate the physical space characterization. The demographic classification and composition measurement of people in the physical space is performed automatically based on a novel usage of a plurality of means for capturing images and a plurality of computer vision technologies on the captured visual information of the people in the physical space. The plurality of computer vision technologies can comprise face detection, person tracking, body parts detection, and demographic classification of the people, on the captured visual information of the people in the physical space.

The present invention relates to a real time night time vehicle detection and identification system comprising of an illuminant object image segmentation device 1, an illuminant object classifying device 2, a vehicle lighting object identification device 3, a vehicle position determining device 4 and a vehicle tracking device 5. Under various circumstances of road lighting during nighttime, the system can efficiently and accurately demarcate and identify the lamps of incoming and preceding vehicles and accurately provides the driver with auxiliary information needed to analyze the traffic conditions in front of the vehicle during the conditions met on the road at that time.

This invention describes methods and algorithms for processing a plurality of relevant signals/data intrinsic to a patient and/or derived from external diagnostic equipment for management of atrial arrhythmias. The intrinsic signals are acquired from intracardiac leads/sensors and analogous extrinsic data obtained from imaging equipment and patient demographics. These data are input into software algorithms that use digital signal processing to output informational data of clinical and technical relevance after comparisons are made to patients with access to this technology whose outcome under varying treatments is known. These combined data are used to define prognosis, make treatment suggestions, direct programming of cardiac devices and digitally convert intrinsically and extrinsically derived indices into a common metric. In a preferred embodiment, the intrinsically and extrinsically acquired data is utilized in the design of catheters and software algorithms for performing intracardiac procedures such as ablation of atrial arrhythmias.

A method for managing network access is provided that includes receiving a signal indicating a change in a network parameter, the change reflecting that an end user associated with a communication session has changed from using a first network node to a second network node. Each of the network nodes is operable to facilitate the communication session associated with the end user. The method also includes communicating with a billing system element to notify the billing system element of the change in the network parameter and receiving quota information for the end user associated with the second network node. The billing information associated with the second network node may be applied to the communication session, the billing information being based on the quota information.

A method for determining travel time of a vehicle on a road, wherein the vehicle is operable within a mobile communication network, comprising: collecting historical communication events of a mobile user in order to obtain travel samples, wherein the historical communication events indicate when the mobile user travelled along a monitored road; determining a cell handover sequence from the historical communication events; determining from the cell handover sequence, one of more road segments of the monitored road; determining the travel time of the one or more road segments according to the travel time samples; selecting, for an undetermined road segment of the monitored road for which the real-time travel time is not determined from the collected historical communication events, a candidate mobile user that is most likely to appear on the undetermined road segment; actively positioning the candidate mobile user to obtain positioning information; and returning to the step of collecting communication events of a mobile user currently on a monitored road with the active positioning as one communication event for the candidate mobile user, to determine the real-time travel time of the undetermined road segment.

The invention discloses a monocular vision-based lane line and front obstacle detection method, which relates to a lane line detection and front obstacle detection method and aims at solving defects of inaccurate lane line detection and low front obstacle detection precision in the prior art. The method particularly comprises steps: 1, a vehicle-mounted CCD camera is adopted to acquire an original image, gray processing is carried out on the original image, and a gray image is obtained; 2, the gray image is pre-processed, and a binary image after clutter removal is obtained; 3, the binary image after clutter removal is subjected to near half area lane line initial detection and line crossing alarming detection based on Hough transform; 4, according to point coordinates on the near half area lane line initial detection line obtained in the third step, parabolic fit is carried out on a near-view field lane line and a far-view field lane line, and a fit lane line is obtained; and 5, obstacle detection is carried out in the fit lane line obtained in the fourth step. The method is applied to the technical field of image processing.

The invention discloses a roadway surrounding rock stress monitoring device based on fiber bragg grating sensing. Grooves are symmetrically carved in a metal rod along the axial center, an FBG set is fixedly installed inside each groove, FBGs serve as sensitive elements, when roadway surrounding rock is deformed, the stress of the surrounding rock will be changed, therefore, force is generated through the metal rod, surface micro-deformation is generated, the grating distances of the FBGs attached to the metal rod are changed along with the metal rod, the center reflection wavelength of the FBGs can be caused to generate drifting, wavelength signals are demodulated into electrical signals through an FBG interrogator, and the stress situations of different sites can be obtained. The roadway surrounding rock stress monitoring device has the advantages that installation is easily achieved, and the roadway surrounding rock stress monitoring device is suitable for wide popularization; power is not required to be supplied to the working face end, and site safety is guaranteed; all-optical measurement and fiber transmission are adopted, and influences of electromagnetic interference are effectively avoided; the temperature error is compensated, and the accuracy is improved; the surrounding rock stress monitoring results can be timely and accurately provided, and guidance on site production and scientific research is facilitated.

A stator segment arranged to define a portion of an annular stator includes a core segment including a core back portion arranged to extend in a circumferential direction of the stator, and a tooth portion arranged to extend from the core back portion in a radial direction of the stator; a coil wound around the tooth portion and including a pair of coil wire terminals; an insulating layer arranged between the coil and the tooth portion; and a resin layer arranged to seal the entire coil except for the pair of coil wire terminals. Circumferential end walls of the resin layer are arranged circumferentially inward of circumferential end walls of the core back portion.

The invention provides a content-based image search method and device. The method includes: acquiring an image that a user needs to search for; searching for the image, to be searched, in an image library on the basis of image content, thereby obtaining the related images; extracting candidate subject terms from context of the related images; determining confidence coefficient of the candidate subject terms, by fusing statistical characteristics of the candidate subject terms to at least one of property characteristics, structural characteristics, field characteristics and term relation characteristics, and selecting subject terms from the candidate subject terms according to the confidence coefficient; according to conditions of similarity of the selected subject terms to the related images, ranking the related images, including the images in search results, and returning the search results to a user. The content-based image search method and device has the advantages that image search results that users require can be accurately provided, system resources are saved and user experience is improved.

A method for evaluating a performance prediction for a wind farm comprising a plurality of wind turbines is disclosed. The method comprises providing a siting model, said siting model being capable of predicting performance of a wind farm, based on performance estimates of individual wind turbines forming part of the wind farm; applying the siting model to one or more existing wind farms, thereby predicting performance of the existing wind farms; and comparing the predicted performance of the existing wind farms to historical performance data of the existing wind farms. The performance prediction provided by the siting model is evaluated, based on the comparison.

The present invention provides a similar information recommendation method and system. The similar information recommendation method comprises: according to a keyword in searching content, determining a preliminary candidate set; according to a semantic similarity degree between the searching content and each piece of information in the preliminary candidate set, determining similar information corresponding to the searching content in the preliminary candidate set; and presenting the similar information. By means of the method and system provided by the technical scheme of the present invention, the problem that specific semantics of searching information can not be determined by a simple keyword search is avoided, the information similar to the searching content can be more accurately provided, searching efficiency of users is improved, repeated posting of the users is also avoided, and thus user experience is enhanced.

The present invention provides a communication restriction control system and a communication restriction control method capable of performing communication restriction control depending on circumstances of communication restriction control area. The mobile terminal transmits a response request signal to a radio response equipment provided in the communication restriction control area which transmits a response signal including identification information as a response to the response request signal. A communication system discriminating equipment which is provided with a database in which the identification information is associated with one of allowed communication circumstances, and allowed communication circumstance is determined by referring to the database according to the identification information, and communication restriction control of the mobile terminal according to the determined result is performed.