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2088 results about "Global position system" patented technology

The Global Positioning System ( GPS ), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Air Force. It is a global navigation satellite system that provides geolocation and time information to a GPS receiver anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites.

High voltage overhead transmission line line-inspection unmanned aerial vehicle photoelectric detection device

The invention relates to a high voltage overhead transmission line line-inspection unmanned aerial vehicle photoelectric detection device belonging to the technical field of power line inspection. The invention aims at solving the problem of single technology of the existing overhead transmission line line-inspection. The high voltage overhead transmission line line-inspection unmanned aerial vehicle photoelectric detection device mainly comprises an unmanned aerial vehicle, a GPS (global position system) inertial integrated attitude azimuth detection device, a damping device, a rotation detection nacelle, a ground data receiving processor and a controller. The high voltage overhead transmission line line-inspection unmanned aerial vehicle photoelectric detection device is characterized in that the GPS inertial integrated attitude azimuth detection device is arranged at the inner part of the unmanned aerial vehicle; the rotation detection nacelle is hung below the unmanned aerial vehicle by the damping device; a photoelectric stabilized platform is installed in the rotation detection nacelle; flexible combination of any two or more of a visible light camera, an ultraviolet ray imager and a full-digital dynamic thermal infrared imager and a laser ranging device are borne on the photoelectric stabilized platform; and the rotation detection nacelle is provided with a visible window. With the adoption of the high voltage overhead transmission line line-inspection unmanned aerial vehicle photoelectric detection device, a high voltage transmission line can be monitored, and a comprehensive and precise high voltage overhead transmission line line-inspection task is realized by combining interchange among a plurality of sensors.
Owner:CHANGCHUN UNIV OF SCI & TECH +1

Mobile millimeter wave communication link

A point-to-point, wireless, millimeter wave communications link between two stations at least one of which is a mobile station. A millimeter wave transmitter system operating at frequencies higher than 57 GHz with a tracking antenna producing a beam having a half-power beam width of about 2 degrees or less and a millimeter wave receiver also with a tracking antenna having a half-power beam width of about 2 degrees or less. In preferred embodiments each mobile station has a global position system (GPS) and a radio transmitter and both tracking antennas are pointed utilizing GPS information from the mobile station or stations. The GPS information preferably is transmitted via a low frequency, low data rate radio. Each millimeter wave unit is capable of transmitting and / or receiving, through the atmosphere, digital information to / from the other station at rates in excess of 155 million bits per second during normal weather conditions. In preferred embodiments actually built and tested by Applicants digital information has been transmitted at rates of 1.25 gigabits per second. Preferred communication links described here are millimeter wave links operating at frequencies of 71-73 GHz and 74-76 GHz mounted on simple two-axis gimbals. Pointing information of the required accuracy is provided by GPS receivers and standard radio links which send the GPS calculated positions to the millimeter wave systems at the opposite end of the link. In these embodiments there is no need for any complicated closed loop pointing information derived from received signal intensity or phase. On moving platforms locally generated inertial attitude information is combined with the GPS positions to control pointing of the gimbaled transceivers.
Owner:TREX ENTERPRISES CORP

Automatic-navigation crawler-type mobile fruit picking robot and fruit picking method

The invention discloses an automatic-navigation crawler-type mobile fruit picking robot which comprises a mechanical execution system and a control system and is characterized in that the mechanical execution system comprises an intelligent movable platform, a fruit picking mechanical arm and a two-finger type manipulator, wherein the intelligent movable platform comprises two crawler assemblies, an experimental facility fixing rack, a supporting stand column, a cross beam, a speed reducer and the like; and the control system comprises an industrial personal computer, a motion control card, a data collecting card, an image collecting card, an encoder, a GPS (global position system), a monocular zooming camera assembly, a binocular camera, a laser ranging sensor, a control circuit and the like. The automatic-navigation crawler-type mobile fruit picking robot integrates the fruit picking mechanical arm, the two-finger type manipulator, the intelligent movable platform and the sensor system, integrates multiple key technologies such as fruit identification, motion of the picking mechanical arm, grabbing of a tail-end executer, automatic navigation and obstacle avoidance of the movable platform, and the like, and really realizes automatic and humanized fruit picking.
Owner:NANJING AGRICULTURAL UNIVERSITY

Image-processing-based unmanned plane accurate position landing method

The invention discloses an image-processing-based unmanned plane accurate position landing method, which comprises the following steps: (1) a GPS (global position system) satellite navigation system enables an unmanned plane to be located above a ground parking apron; (2) an air pressure height measurement gauge and a distance measurement module of an ultrasound radar are combined to control the ground clearance for the unmanned plane to land; (3) a vision module identifies a coarse positioning identification domain in real time, and combines Hough Transform and RGB mean value method and gate position identification to process a coordinate of a targeted landing point; (4) when landing of the unmanned plane meets the threshold condition of the coarse positioning identification domain, the algorithm in the step (3) is utilized to perform accurate positioning treatment on the accurate positioning identification domain; and (5) the unmanned plane is controlled for accurate landing by taking the treated deviation value as the input quantity and adopting the double PID algorithm. According to the invention, the defect that insufficient GPS accuracy of the unmanned plane causes a fault landing is overcome, the intelligence for the unmanned plane control is improved, and the cost for using an accurate sensor is greatly reduced.
Owner:GUANGDONG UNIV OF TECH

System for digitally capturing and recording panoramic movies

The present invention provides a very flexible, digital system for capturing and storing panoramic images using progressive scan (that is, non interlaced) technology. The system includes a digital image input device and an associated control computer. Since the image capture device is digital it can be easily and flexibly controlled by software in the control computer. The image input device has six lenses positioned on the six faces of a cube. While the image input system can have other lens configurations, the use of six lenses in a cubic configuration is optimal for a system that is used to capture a spherical panorama. The six lenses simultaneously focuses different images on six CCDs (Charge Coupled Devices). The image input device also includes an embedded controller, and data compression circuitry. The embedded controller controls the exposure time of the CCDs (i.e. the effective aperture and effective shutter speed) and reads image data from the CCDs. The image data read from the CCDs is compressed, multiplexed, and sent to the control computer. The control computer stores the images in frames, each of which have one image from each of the six lenses. Each frame includes six images that were simultaneously recorded and any associated information, such as audio tracks, textual information, or environmental information such as GPS (Global Position System) data or artificial horizon data. The control computer includes a user interface which allows a user to specify control information such as frame rate, compression ratio, gain, etc. The control computer sends control information to the embedded controller which in turn controls the CCDs and the compression circuitry. The images can be sent from the control computer to a real time viewer so that a user can determine if the correct images are being captured. The images stored at the control computer are later seamed into panoramas and made into panoramic movies.
Owner:GILBERT SCOTT +3

Wireless traffic signal system and method thereof cooperated with vehicle tracks at intersections

The invention relates to the technical field of traffic control, in particular to a wireless traffic signal system and a method thereof cooperated with vehicle tracks at intersections. The invention adopts a special short-range communication mechanism. The system comprises intersection transmitting equipment, vehicle receiving equipment, a singlechip, voice output equipment, GPS (Global Position System) equipment and a vehicle display. The singlechip carries out data fusion processing on real-time traffic information and the longitude and the latitude of vehicles to obtain information of traffic signal lamps on the vehicle tracks and outputs the information to the vehicle display. The method comprises the step that the singlechip carries out data fusion on information of an electronic map, a real-time traffic lamp signal, vehicle track positioning and traveling direction and displays the traffic signal on the electronic map when the vehicles enter the communication range of a special short-range communication technology. The invention can ensure that the traffic signal is transmitted to the vehicles through the system under the condition that a driver cannot clearly see the front signal lamps and thereby the driver can clearly know about the current contents displayed by the traffic signal lamps by using a display or voice prompt system.
Owner:WUHAN UNIV OF TECH

Tumble detecting and positioning system and method

The invention discloses a tumble detecting and positioning system and method. The tumble detecting and positioning system comprises a tumble detecting and positioning device, which comprises an inertia navigation module, a GPS (Global Position System) module, a main controller and an Sim (Subscriber Identity Module)-300 module, wherein the inertia navigation module consists of a triaxial gyroscope, a triaxial magnetometer and a triaxial accelerometer; the GPS module and the inertia navigation module are respectively connected with the main controller; the main controller is connected with the Sim-300 module; and the tumble detecting and positioning device is connected with a kin mobile phone and a ward station, which are bound with tested personnel, through GSM (Global System for Mobile Communications) / GPRS (General Packet Radio Service). A tumble detection algorithm based on a nerve network and machine learning is further designed to accurately detect the tumble status and position information of human bodies, the information is transmitted to the ward station through the GSM / GPRS, and the status and the positions of tested personnel are real-timely displayed on a monitoring picture. The tumble detecting and positioning system can accurately detect the tumble status of the tested personnel and track and position the tested personnel in real time, is convenient and practical, and has high accuracy and strong stability.
Owner:SHANDONG UNIV

Method for switching indoor ultra wide band (UWB) location and outdoor global position system (GPS) location

ActiveCN102645666AAdaptive switching method for natural indoor and outdoor positioningAdaptive Switching Method for Reliable Indoor and Outdoor PositioningSatellite radio beaconingTelecommunicationsWide band
The invention discloses a method for switching indoor ultra wide band (UWB) location and outdoor global position system (GPS) location, which is used for achieving the seamless mobile guiding from outside to inside and from inside to outside by means of organically coordinating the outdoor GPS location with the indoor UWB location. According to the method for switching the indoor UWB location and the outdoor GPS location, on the basis of the geographic coordinate of wideband global satellite (WGS) 84, by means of a custom local coordinate system serving as a space reference for a mobile guiding system, coordinates of an indoor control point can be calculated according to the coordinates of an outdoor known point, so that under the unified coordinated system, according to location coordinates of tourists and coordinates of entrances and exits, by means of obtaining action modes such as speeds, moving directions and the like of the tourists and judging whether the tourists enter into the broadcast switching areas, the GPS location and the UWP location can be real-timely switched, and the self-adaptation method for switching the indoor UWB location and the outdoor GPS location is nature, timely and reliable.
Owner:NANJING HANDSMAP INFOR TECH

Road condition information generating method based on bus global position system (GPS) tracking data

InactiveCN104318767AAccurately reflect the road conditionsAccurate actual driving positionDetection of traffic movementRoad networksGps trajectory
The invention discloses a road condition information generating method based on bus global position system (GPS) tracking data. The method includes that (1) in a bus road network data structure, actual bus stations, station points, route intersection points and intersection nodes are expressed by nodes, each two adjacent nodes that are on the same road and in the same direction are connected through a line section, the line section is defined as a road section for representing a single-direction actual road section, and a driving direction of the road section is used as an associate attribute of the road section; (2) all GPS tracking data of n buses within certain time period T are obtained; (3) all GPS tracking data of the n buses are matched to the bus road network data structure; (4) average speed (img file='DDA0000591646390000011.TIF'wi='42' he='59') of h buses that are matched with the corresponding road section is used as road condition information of the actual road section. According to the road condition information generating method based on the bus GPS tracking data, the whole bus road network data structure is established through point elements and line elements, and road conditions of the road section can be accurately reflected.
Owner:BEIJING UNIV OF CIVIL ENG & ARCHITECTURE

Dangerous goods transport vehicle dynamic monitoring method and early warning device

The invention relates to a dangerous goods transport vehicle dynamic monitoring method and an early warning device. The method comprises the following steps: (1) arranging the early warning device which comprises a collision, rollover and temperature and pressure early warning module, an early warning arithmetic and a threshold value; (2) acquiring the acceleration, the dip angle, the temperature/pressure and image signals of a goods wagon; (3) carrying out calculation on each signal and comparing the signal with the preset threshold value and sending out a corresponding alarm command; (4) displaying alarm information and sending the alarm information to a remote monitoring center through a global position system/general packet radio system (GPS/GPRS); (5) after the alarm is completed, returning to the step (2); and (6) carrying out real-time monitoring on a goods state and the alarm information by a driver through displaying. The corresponding early warning device comprises the GPS/GPRS, cameras, a card reader, a triaxial acceleration sensor, a display screen, an artificial alarm, a buzzing alarm, a temperature/pressure sensor, a dip angle sensor, a secure digital (SD) card storage and an electronic control unit which comprises a microprocessor. The collision, rollover and temperature and pressure early warning module is arranged in the microprocessor. The invention can be used for carrying out real-time monitoring on collision, rollover and temperature and pressure, thereby being beneficial to driving safety and rescue operation.
Owner:RES INST OF HIGHWAY MINIST OF TRANSPORT

Tunnel lining disease detection device based on infrared temperature field and gray level image

The invention relates to a tunnel lining disease detection device based on an infrared temperature field and a gray level image. The tunnel lining disease detection device comprises a vehicle-mounted mobile platform, illumination equipment, a photoelectric encoder, a GPS (Global Position System) receiver, an inertia unit, a synchronous controller, an area-array camera, an infrared thermal imager, an acquisition server, a display control device and a power supply system; tunnel lining two-dimensional image data, infrared temperature field data and fracture surface deformation data are combined with positioning data of the GPS, the inertia unit and the photoelectric encoder to establish a tunnel model with gray level information, temperature information and fracture surface deformation; and tunnel lining cracks are analyzed, and the length, width and lining leakage water information of the cracks are automatically detected. For the tunnel lining disease detection device, the advantages of infrared temperature field detection and two-dimensional gray level image crack detection are combined so that the detection result is relatively reliable, the speed is rapid and the working efficiency is greatly improved.
Owner:WUHAN WUDA ZOYON SCI & TECH

Fire monitoring and warning method on basis of unmanned aerial vehicle

The invention relates to a fire monitoring and warning method on the basis of an unmanned aerial vehicle. The fire monitoring and warning method comprises the following steps: utilizing the unmanned aerial vehicle carrying a digital camera and a GPS (Global Position System) receiver to circularly monitor and shoot images, recording the shot images as well as a GPS position and a shooting gesture at a shooting moment, and sending back to a ground station in real time; scanning the received images by the ground station, identifying a potential fire point (grid) and a fired fire point (grid), and obtaining an accurate fire scene position and a scope; calculating boundaries and a gravity center of a plurality of fire scene scopes at adjacent moments by the ground station on the basis of continuously shot aerial photos, thereby obtaining a point farthest away from the gravity center of the fire scenes, namely, obtaining a fire starting point; and analyzing the change in the position of the fire starting point, so as to judge the fire extending direction and calculate the fire extending speed and acceleration. The fire monitoring and warning method has the advantages that the demand on image processing capacity of a carried device on the unmanned aerial vehicle is low, the load of the unmanned aerial vehicle is light, the continuous flying polling time is long, the risk in losing or damaging the device is low, the fire extending direction is automatically extracted, the fire extending speed and acceleration are automatically calculated, and the practical applicability is strong.
Owner:SOUTH CHINA AGRI UNIV
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