479results about How to "The location information is accurate" patented technology

A time/location information delivery system that provides focused advertising and/or other information to individuals based on the time and their location. A wireless identification device is carried by an individual and can be read from or written to when the individual passes by interrogators in a specific geographic location. The detectors read ID information embedded in the wireless identification device. A computer uses the ID and location information to select, from a list of information providers, those information providers which provide information content identifiable or correlated to a location and/or time, and is of interest to the individual. The information content can be forwarded to the individual by a variety of information channels. One channel uses conventional Internet email to deliver advertisements and other information to the individual's Internet mailbox. The email can be delivered to a conventional PC, a portable computer, a PDA, an intelligent telephone, pager or other suitable device. For ease of discussion, a pager and a PDA will be referred to collectively as a PDA. The wireless identification device can be an RFID tag embedded in a card, or even a wireless telephone. The RFID tag is read or written to by fixed interrogators and the location of the wireless telephone is detected by triangulating information from cell towers or by embedding the GPS receiver in the wireless telephone thereby providing the location information directly from the telephone. Of course, other nearly identical location determination means, such as quadrangulation could also be used. The location determination can be performed through similar means with other devices such as PDAs, laptops, pagers, etc.

An assisted wireless position determination system includes a plurality of base stations and a plurality of wireless devices, such as mobile telephones and personal digital assistants, adapted to communicate with the base stations. The wireless position determination system also includes a position determination system for determining the geographic position of the wireless devices. The position determination system includes a position determination entity (PDE) that is connected to the base stations and serves as a processing server for computing the position of the wireless devices. The system and method reduces or eliminates redundant and superfluous data. In addition, the system and method ensure that the wireless device is not loaded with additional capacity, and that the wireless device is provided with precise location information. The embodiments of the system and method of the invention are compliant with the TIA/EIA IS-801 standard or other standards.

The invention provides an intelligent safety monitor system of an electric power working site. The intelligent safety monitor system of the electric power working site comprises a locating sub-system, an intelligent video analysis sub-system and an intelligent safety monitor sub-system. The locating sub-system comprises a locating server, a locating label and a base station unit. The base station unit obtains the position information of the locating label by detecting UWB signals and MAC data sent by the locating label, and sends the position information to the locating server. The intelligent video analysis sub-system analyzes a video stream of the electric power working site so as to monitor the operation actions of working personnel, and gives an alarm according to the analysis result. The intelligent safety monitor sub-system comprises a locating monitor platform and a video monitor platform. Compared with the prior art, the intelligent safety monitor system of the electric power working site can effectively prevent the personnel from breaking rules, prevent or reduce personal injury of an electric power system, and be widely applied to the electric power safety working and electric power construction working site.

The invention provides a new indoor accurate positioning system based on a RFID technology. The system is shown in a figure 1 and mainly comprises components, such as RFID reader-writers, RFID reference tags, RFID track tags, and the like, and a user can obtain corresponding positioning service by connecting a personal intelligent device to a wireless local area network. The system uses wireless signal intensity as a positioning reference, the tags are communicated with the reader-writers by radio waves, and each reader-writer can read and record the signal intensity of all tags at set intervals. A certain reference tags at known positions are used as reference points, and the signal intensity of the track tags are compared with the signal intensity of the reference tags by the positioning method according to the signal intensity characteristics of the reference points so as to obtain more accurate position information of the track tags.

An apparatus for providing information services to a user includes a microserver disposed at the user's home or office. The microserver is connected to a communication network which is connected to a global computer network, and the user's mobile or fixed telephone terminal. At least one service server is connected to the user's mobile or fixed terminal via the global computer network, the communication network and the microserver. Through the disposition of microserver at the user's primary location, the service server can transmit general or user specific service information to the user via their mobile and/or fixed terminal. The problems of localization of the user are eliminated by the implementation of the microsever at the user's primary communication location.

A differential GPS or GLONASS system (collectively referred to herein as a ‘GPS system’) is implemented for use by a base station of a wireless telephone system (e.g., by a cellular telephone base station). Using the differential GPS system, a differential location ‘correction’ factor is determined based on a difference between a received GPS location signal and a known fixed location of a GPS system receiver for the base station. A differential GPS correction signal containing the correction factor is transmitted to any or all cellular telephone users of that base station to allow the cellular telephones to improve the accuracy of location information independently measured by GPS receivers located in each of the cellular telephones. The differential GPS signal may be used to increase the accuracy of the GPS system, whatever the current accuracy of the GPS system, allowing practical implementation of an emergency telephone system such as a 911 system using a wireless system such as a cellular telephone system.

A method and system obtains precise survey-grade position data of target points in zones where precise GPS data cannot be obtained, due to natural or man-made objects such as foliage and buildings. The system comprises a GPS receiver mounted on a survey pole, with an inertial measurement unit (IMU) and an electronic distance meter (EDM) also mounted on the pole. The system and method obtains GPS data when outside the zone and uses the IMU inside the zone to traverse to a target point, using the EDM to obtain data reduce accumulated errors which occur with the IMU.

Disclosed are a vehicle autonomous traveling system and a vehicle traveling method using the same. The vehicle autonomous traveling system includes a vehicle navigation device that plans a driver global path to a destination by acquiring a location of a vehicle, and guides a path in accordance with the planned driver global path, an autonomous traveling path providing unit that recognizes a road environment while planning a detailed global path by mapping a partial detailed path of a lane level based on the driver global path, determines a traveling condition based on the detailed global path and the recognized road environment, and outputs vehicle traveling information for controlling the vehicle, and an autonomous traveling operation unit that receives the vehicle traveling information, and performs autonomous traveling of the vehicle by following a path included in the vehicle traveling information.

The invention belongs to the field of industrial robots, and particularly relates to an infrared temperature measurement track inspection robot. The infrared temperature measurement track inspection robot comprises a robot control system. The robot control system comprises a cradle head, a robot control cabinet, a track, a slide wire, a current collector, an infrared photoelectric sensor and a bogie. The robot control cabinet is installed on the upper surface of a longitudinal girder of the bogie. The cradle head is installed on the upper surface of the robot control cabinet. The track is of a T shape, wherein an infrared detection scale is arranged on the upper surface of the protruding side. The bogie is operated on the track. The slide wire connected with an external power source is arranged on one side face of the track. One end of the current collector slides on the slide wire and the other end of the current collector is electrically connected with the robot control cabinet. The infrared photoelectric sensor is of a U shape and is installed on an upright inside a side baffle of the robot control cabinet and transversely suspended above the track with the infrared detection scale. According to the infrared temperature measurement track inspection robot, control over accurate walking, localization and the like on the arranged track can be achieved, infrared temperature measurement and inspection are conducted, and the inspection quality is improved.

An apparatus and related methods using a variety of heterogeneous sensors to accurately track, in real time, the location of the tip of a surgical instrument inside the human body. The system accounts for real time changes in the surrounding environment during surgery, and when integrated with noninvasive image-guided surgery (IGS), this invention makes IGS possible and safe without tedious offline calibration. Sensors include, but are not limited to, optical, electromagnetic (EM), and sonar.

The invention discloses a method for remotely monitoring the real-time working condition of engineering mechanical vehicles, which comprises a step of data acquisition: acquiring all types of real-time working condition data and GPS positioning date, a step of data preprocessing: filtering and smoothing the acquired working condition data to obtain effective working condition data, a step of data upload: uploading the acquired effective working condition data and GPS positioning date to a control center, a step of data processing: generating charts and report forms of all types of working condition data corresponding to the engineering mechanical vehicle, and a step of remote fault early warning: sending early warning prompt message when the uploaded effective working condition data exceeds/lowers the early warning threshold. The method of the invention can realize the remote monitoring of the real-time working condition of engineering mechanical vehicles, has characteristics of real-time and overall acquisition of working condition data, accurate and timely fault analysis, convenient and quick fault treatment, and can greatly reduce the management cost on the engineering mechanical vehicles.

The invention discloses an inertial vision integrated navigation method based on an optical flow method, relates to an inertial vision integrated navigation method, and has the purpose of solving theproblems that the navigation information is inaccurate due to cumulative errors caused by the existing inertial navigation working for a long time, a mask interruption or an excessive dynamic error may happen when the existing satellite navigation is indoor or shielded by a building, and the algorithm of the existing vision navigation is complex and susceptible to camera pose, illumination changes, image noise and the like. The method comprises the following processes: 1, defining a coordinate system; 2, carrying three sensors of an IMU (Inertial Measurement Unit), a camera and an altimeter onthe drone to obtain two-dimensional optical flow data; 3, obtaining the position of the drone in the world coordinate system; 4, performing inertial navigation according to the IMU measuring information to calculate the position and attitude of the drone in the world coordinate system; and 5, obtaining the position and attitude information of the merged drone in the world coordinate system. The method is used in the technical field of autonomous navigation of drones.

The invention provides a mobile robot autonomous following system and method based on multi-sensor fusion and relates to the technical field of industrial automation. The system comprises an upper navigation unit, a bottom motion control unit and a power supply unit, wherein the upper navigation unit acquires positioning information about a target person by a sensor, plans and calculates tracks ofmotion of a robot towards the target person, selects a planned track with the optimal local path and sends a control command to the bottom motion control unit; the bottom motion control unit controlsthe robot to move towards the target person according to the control command of the upper navigation unit; the power supply unit supplies power to the whole system. Meanwhile, the invention further provides the specific mobile robot autonomous following method based on the system. By means of the mobile robot autonomous following system and method based on multi-sensor fusion, the mobile robot can realize a stable autonomous person following function in a dynamic shielding environment including the condition that the target person is shielded by an obstacle.

The invention discloses an indoor positioning method based on three-dimensional environment model matching. Indoor environment modeling, position analysis and information calibration are carried out by three-dimensional information acquired by a sensor; a user collects current scene information and performs quick comparison and precise feature matching on the current scene information and three-dimensional environment model information to realize indoor positioning of the user. The positioning method cannot be finished until a data acquisition device and a data analysis platform for indoor positioning are respectively built. The data acquisition device comprises but not limited to an RGB-D (red, green and blue-D) sensor, an inertia measurement sensor and the like and can finish acquiring space information such as three-dimensional information, the attitude and a deflection angle at any indoor position; the data analysis platform can carry out quick storage, position analysis and information calibration on the environment model by the acquired three-dimensional information and feed back an analyzed positioning result to a user; therefore, the indoor positioning function is realized.

The invention relates to an active infrared wireless capsule endoscopy system. A wireless capsule main body is positioned in a human body; a magnetic driver is positioned outside the human body; the wireless capsule main body is controlled by the magnetic driver to move in vivo; a detector and a signal receiver receive a signal from the wireless capsule main body and then send the signal to an information processing control centre to process the signal; the information processing control centre outputs the signal to a wireless energy emitter which emits energy; the wireless capsule main body receives the energy; and the information processing control centre outputs to a display to display parameters and a virtually reconstructed three-dimensional image. The system can photograph an inner alimentary canal to obtain infrared image information, and a capsule endoscope is controllable, so gastrointestinal endoscopy is controllable; medical workers are provided with a basis for instant, repeated and extensive detection of suspicious focuses at the same time; and the system can photograph the inner alimentary canal to obtain the infrared image information and therefore obtains accurate position information and supplies correct information for subsequent surgeries.

The invention relates to a iris location method based on border point search and SUSAN edge detection, wherein the method using projection method first, to do and horizontal gray projection for binary iris image filled by spot, obtain rough center of pupil; through vertical scanning gray curve, to find a point which gray value is greater than a threshold value as internal border point of iris; circle fitting a series of the internal border points, thus obtaining location information of inner edge of the iris; Through SUSAN edge detection method, to cause the situation of obvious external border of the iris characteristic solved well, through direction detection, obtaining radius of external border of the iris, and location information of external border of the iris accurately; locating external border of the iris through the SUSAN edge detection method outside edge of the iris position is a feature of the invention, comparing with general two-step iris location method, positioning accuracy rate of the invention is enhanced by 5 percentage, and the speed of the same is enhanced by 40 percent.

The invention discloses a vision positioning method and system based on low-precision GPS in automatic driving. Road surface lane lines are detected, extended Kalman filtering is performed on edge points of the lane lines to obtain curves of the lane lines, transverse distance between a vehicle and left and right lane lines is obtained, and based on a high-precision map and GPS, transverse position correction of the vehicle is obtained; road surface traffic signs are detected and identified, longitudinal distance between a vehicle-mounted camera of the vehicle and a target object at a currentmoment is calculated, and based on the high-precision map and GPS, longitudinal position correction of the vehicle is obtained; and finally, accurate vehicle positioning information is obtained basedon the transverse position correction and longitudinal position correction. Thus, by adoption of cooperation of the low-cost low-precision GPS and high-precision map, a high-precision vision auxiliarypositioning function is realized, the positioning is stable, the robustness is high and the cost is low, influence by shielding and reflection by barriers such as city buildings and viaducts does notexist, transverse positioning precision can be within 20 cm, and the vision positioning method and system are suitable for commercial popularization and application.

The invention relates to a multi-source information fusion positioning method and device. The multi-source information fusion positioning method comprises the steps: (1) the track is deduced through asensor integrated in an intelligent terminal; (2) weighted centroid positioning and signal sequence matching positioning are conducted through a Bluetooth sensor; (3) weighted centroid positioning and signal sequence matching positioning are conducted through a Wi-Fi sensor; and (4) the track deduction result obtained in the step (1) and the positioning results obtained in the step (2) and the step (3) are fused, and the final positioning result is obtained. An inertial navigation/Bluetooth/Wi-Fi-based fusion positioning mode is adopted, the advantages of various positioning technologies canbe developed effectively, and high-precision positioning and navigation are achieved; and the positioning cost is low, deployment is convenient, the coverage range is wide, the very high scene adaptability is achieved, real-time, continuous and accurate position information can be provided, and the multi-source information fusion positioning method and device can be widely applied to various indoor positioning scenes.

The invention discloses a method for obtaining MRO user information based on S1-MME signalling association. The method comprises the following steps of: S1, performing clock synchronization of signalling acquisition equipment and wireless side acquisition eNB equipment; S2, performing data source acquisition by the signalling acquisition equipment and the wireless side acquisition eNB equipment, and analyzing to obtain an S1-MME XDR ticket, an S1-U XDR ticket and a structural MRO file; S3, associating MR0 in MR with S1-MME XDR by taking the time, ECI and MMEUES1apID as key values; S4, associating MR0 with S1-U XDR by taking the time and IMSI as key values, so that MR data associated with each S1-U XDR is obtained; and S5, obtaining required related information according to the associated MR data and S1-U XDR. According to the method disclosed by the invention, MRO is associated with S1-U signalling after obtaining user information; related information of two types of data can be respectively obtained; and thus, all kinds of deep analysis of MR, signalling and user behaviours can be realized.