162 results about "Gps receiver" patented technology

The invention belongs to the crossing field of computer vision and three-dimensional reconstruction, and particularly relates to a large-scale three-dimensional scene registration method. A 3D Gaussian sputtering large-scale scene registration method fusing GPS prior information comprises the steps that S1, an unmanned aerial vehicle carrying a GPS receiver is used for conducting data collection on a registration area, GPS / image information collected by the unmanned aerial vehicle is obtained, and sparse point clouds are produced through feature extraction and matching and camera pose estimation by means of spatial position prior information provided by a GPS; initially reconstructing the SFM model; step S2, model alignment: adopting ENU coordinate system conversion and ENU homogeneous transformation matrix calculation to establish initial reconstruction SFM model alignment so as to reduce a registration search space; s3, efficiently reconstructing a dense point cloud model in combination with a 3DGS technology; and S4, finally, high-precision alignment is realized through two-stage optimization of GPS coarse registration and fine registration. According to the method, the problems of low calculation efficiency, low convergence speed, limited precision and the like in large-scale three-dimensional scene registration are solved.

A secure digital management tool for managing real estate ownership and leases, consisting of: a tamper-proof enclosure containing a secure processing module; a biometric authentication module comprising a fingerprint sensor and an iris scanner, which are operationally coupled with a secure biometric engine to verify a user's physical identity; a document integrity module configured to generate a cryptographic hash of a digital document representing a certificate of ownership or a lease agreement; a smart contract engine configured to compile and execute the logic for legal transactions related to ownership in a Turing-complete virtual machine environment, the logic defining obligations, rights, payment schedules or renewal triggers encoded in the lease or ownership contract; a blockchain interface processing unit operationally connected to the document integrity module and the smart contract engine, wherein the blockchain interface processing unit is configured to anchor cryptographic hashes of the documents and the execution status of smart contracts in a decentralized ledger network; a secure element embedded in the secure processing module and configured to store cryptographic private keys and perform isolated signature and encryption operations without exposing confidential key material to general storage space; a communication subsystem that includes at least one of the following elements: a GSM / 4G module, a Wi-Fi 6 module and a GPS receiver, configured for secure network connectivity and geolocation binding of transactions; a touchscreen interface configured for displaying transaction forms, digital agreements, and interactive contract signing interfaces, the interface also including pen input for capturing digital handwritten signatures; and a secure audit trail subsystem configured to maintain a chronologically ordered, append-only log of all biometric access events, document hash generations, blockchain anchoring events, and smart contract lifecycle transitions, with the audit trail regularly hashed and anchored for forensic integrity in a decentralized blockchain network.

The invention relates to the technical field of bridge deformation monitoring, in particular to an online monitoring method, system and equipment for bridge structure deformation, and the method comprises the steps: analyzing the similarity degree of a spectrogram between each transverse component and a reference component thereof, and determining the transverse feature value of each transverse component in each GPS receiver, so as to obtain a reconstructed transverse displacement signal; determining a vertical characteristic value of each vertical component in each GPS receiver by analyzing a correlation time fitting result of all the vertical components and combining the cross correlation coefficient so as to obtain a reconstructed vertical displacement signal; and respectively analyzing extreme value distribution of the reconstructed transverse displacement signal, the longitudinal displacement signal and the reconstructed vertical displacement signal, and determining a deformation monitoring result of the bridge floor of the to-be-detected bridge. The interference of external wind power and traffic load on bridge structure deformation monitoring is solved, and the accuracy of bridge structure deformation monitoring is improved.

An agricultural steering and navigation system comprising a tactile steering system comprising at least one crop sensor configured to command steering of an agricultural vehicle based upon the location of stalks, a GPS guidance system comprising at least one GPS receiver configured to command steering of the agricultural vehicle along guidance paths, and a processor configured for selectively using either the tactile steering system and the GPS guidance system based on one or more triggers.

To provide an information service device that can serve guidance to the effect that a rest should be taken at an appropriate timing.SOLUTION: A terminal device 100 comprises an output unit 11, a GPS receiver 16, and a control unit 17. The control unit 17 acquires information on a current position of a vehicle Ve from the GPS receiver 16. The control unit 17 also outputs resting information for persuading a driver to take a rest to the output unit 11 when a continuous drive time passes 2 hours, which is a standard time period of a rest threshold time Tth. Furthermore, the control unit 17 changes the rest threshold time Tth from 2 hours, which is the standard time period, based on a positional relation between the vehicle Ve and a rest facility.SELECTED DRAWING: Figure 3

The invention provides a surface mine blasting hole layout method and system. The method is applied to the surface mine blasting hole layout system. The system comprises a probe vehicle provided with a GR, an SWL, a GPS receiver, an LS and an ES. The method comprises the following steps: detecting geologic structure information under a strip mine mountain through GR; sound waves are emitted to rocks under the strip mine mountain through the SWL, and reflected waves of the sound waves are captured; determining mechanical parameters of the rock based on the reflected waves; acquiring position information of the probe vehicle through a GPS receiver; scanning and surveying landforms around the surface mine through LS to obtain fluctuation and slope data of the landforms; monitoring meteorological information around the surface mine through the ES; determining geological target blasting parameters of the surface mine based on the geological structure information, the mechanical parameters of the rock, the position information of the probe vehicle, the fluctuation and gradient data of the landform and the meteorological information around the surface mine; the target blasting parameters are used for carrying out blasting hole layout on the surface mine.

A system for a host vehicle operating on a road surface includes a polarimetric camera, a global positioning system (“GPS”) receiver, a compass, and an electronic control unit (“ECU”). The camera collects polarimetric image data of a drive scene, including a potential driving path on the road surface. The ECU receives the polarimetric image data, estimates the Sun location using the GPS receiver and compass, and computes an ideal representation of the road surface using the Sun location. The ECU normalizes the polarimetric image data such that the road surface has a normalized representation in the drive scene, i.e., an angle of linear polarization (“AoLP”) and degree of linear polarization (“DoLP”) equal predetermined fixed values. The ECU executes a control action using the normalized representation.

A system for detecting and correcting wheelspin in a vehicle powered by a motor includes drive wheels driven by the motor and a motor controller in communication with the motor. In one embodiment, a vehicle acceleration from an inertial measurement unit (IMU) is compared to an estimated vehicle acceleration determined from an acceleration of the motor's rotor. If the estimated vehicle acceleration is greater than the IMU acceleration the motor controller adjusts the motor to correct the wheelspin. In a second embodiment, the vehicle acceleration is determined from a GPS receiver. In further embodiments, the vehicle acceleration is determined from other motor parameters, including voltage, current, and torque. In various embodiments, the drive motor is an electric motor, an internal combustion engine, or other prime mover device or mechanism.

A detection system for a host vehicle includes a camera, global positioning system (“GPS”) receiver, compass, and electronic control unit (“ECU”). The camera collects polarimetric image data forming an imaged drive scene inclusive of a road surface illuminated by the Sun. The GPS receiver outputs a present location of the vehicle as a date-and-time-stamped coordinate set. The compass provides a directional heading of the vehicle. The ECU determines the Sun's location relative to the vehicle and camera using an input data set, including the present location and directional heading. The ECU also detects a specular reflecting area or areas on the road surface using the polarimetric image data and Sun's location, with the specular reflecting area(s) forming an output data set. The ECU then executes a control action aboard the host vehicle in response to the output data set.

An intelligent unmanned ship monitoring navigation system disclosed by the present invention comprises an unmanned ship body, the unmanned ship body is internally provided with a control cabin, a signal acquisition cabin and a power cabin, the control cabin is internally provided with a computer and a signal transmitting module, the signal transmitting module is in signal connection with a signal receiving module, and the signal receiving module is in signal connection with the unmanned ship body. The signal receiving module is in signal connection with a monitoring center server, and a data acquisition module and a GPS receiver are installed in the signal acquisition cabin. The GPS receiver is arranged in the signal acquisition cabin and is connected with the satellite navigation, so that the unmanned ship body can be positioned and navigated, the data acquisition module is arranged and is connected with the monitoring center server through the signal transmitting module and the signal receiving module, and the unmanned ship body can be monitored. According to the combined structure, the operation state and the surrounding environment of the unmanned ship body can be monitored in real time through the monitoring center server, and damage caused by collision between the unmanned ship body and surrounding sundries is avoided.

A vehicle control system for camera-based vehicle navigation includes at least one vehicle camera configured to capture an image of a front view from a vehicle, a global positioning system (GPS) receiver configured to obtain a current location of the vehicle, a vehicle user interface including a display, and a vehicle control module. The vehicle control module is configured to obtain the current location of the vehicle via the GPS receiver, identify a sequence of vehicle navigation steps to a target destination, capture the image via the at least one vehicle camera, process the image with a machine learning model to detect multiple objects in the image, rank the multiple objects according to landmark scoring criteria indicative of an object recognition likelihood by a driver of the vehicle, and display a highest ranked one of the multiple objects in association with a next vehicle navigation step.

A pet locating system and method includes a pet tracking device to be worn by a pet, with the device including a Bluetooth scanner to monitor a status of a presence or an absence of Bluetooth beacons within a predefined area, a Wi-Fi module to connect to a wireless network to communicate the status with a cloud-based server, a cellular modem to communicate the status with the cloud-based server when the device is outside a range of the wireless network, and a GPS receiver to obtain location data of a pet wearing the device and communicate the location data with the cloud-based server.

A system and method for initiating a discreet emergency response for a user of a mobile communication device having front and rear facing cameras, a microphone and a GPS receiver, the method including providing an application on the device capable of receiving a session initiation input and, responsive to the session initiation input, activating a potential emergency session with a remote dispatcher or monitoring center. This includes transmitting an emergency data stream to be accessible to the remote dispatcher or monitoring center. The emergency data stream including a first video stream for video images from a front-facing camera, a second video stream from a rear-facing cameras an audio stream from a microphone, and a stream of geolocation coordinates from the GPS receiver.

The invention relates to the technical field of gas leakage monitoring and tracing, and particularly discloses a gas leakage monitoring and tracing method and system based on multi-source data fusion. The method comprises the following steps: acquiring multi-source data through a sensor group on a mobile platform, wherein the sensor group at least comprises a Fourier infrared spectrometer, a visible light camera, an inertial measurement unit and a GPS receiver; based on an image sequence acquired by a visible light camera, constructing an ORB-SLAM3 algorithm by utilizing visual synchronous localization and a map which are subjected to static semantic constraint optimization, and estimating the pose of the mobile platform in real time; fusing the pose of the mobile platform, the data of the inertial measurement unit and the data of the GPS receiver with a pre-constructed three-dimensional building panorama, and calculating the real-time geographic coordinates of the observation target; and based on the data of the Fourier infrared spectrometer and the real-time geographic coordinates of the observation target, determining a gas leakage position and generating traceability information.

Power can be preserved in a tracking device equipped with a GPS receiver and a transceiver by evaluating the proximity of the tracking device to a mobile device and enabling the GPS receiver and transceiver only in the event that the tracking device is out of the range of the mobile device. Once enabled, the location of the tracking device can be determined based on location information received from the GPS receiver. The determined location can be provided to a tracking system associated with the tracking device. The tracking system can then inform an owner of the tracking device of the determined location. Once the tracking device has been found, the GPS receiver and the transceiver can be disabled to save additional power.

A rotary wing drone communicates its altitude (determined by an onboard GPS receiver) and an air pressure (from multiple onboard barometers) to a ground station which has a known height above sea leve

A system is disclosed comprising a smartphone 2 and an aerosol generation device, such as an electronic cigarette. The smartphone 2 is configured to establish a communicative interaction with the electronic cigarette 4, preferably using a wireless protocol like Bluetooth® so that the devices can exchange data. The smartphone 2 comprises a positioning module, such as a GPS receiver 26, and is adapted to store a position in a data storage unit 28 each time a communicative interaction is established. In this way, the user can retrieve the last stored position from the data storage unit 28 and display it on a map on the smartphone display screen 22 so that they can be assisted in locating the electronic cigarette 4.

The present application relates to the technical field of bridge deformation monitoring, and specifically to a method, system, and device for online monitoring of bridge structure deformation. The method comprises: analyzing the similarity of the frequency spectrum between each lateral component and its reference component, determining the lateral eigenvalue of each lateral component in each GPS receiver, and obtaining a reconstructed lateral displacement signal; determining the vertical eigenvalue of each vertical component in each GPS receiver by analyzing the correlation time fitting results of all vertical components and combining the cross-correlation coefficient to obtain a reconstructed vertical displacement signal; and separately analyzing the extreme value distribution of the reconstructed lateral displacement signal, the longitudinal displacement signal, and the reconstructed vertical displacement signal to determine the deformation monitoring results of the bridge deck to be tested. The present application solves the interference of external wind and vehicle loads on bridge structure deformation monitoring, and improves the accuracy of bridge structure deformation monitoring.

A method for dynamically managing toll charges in a vehicle toll management system, comprises receiving, by a toll managed services server (TMSS), a first message from a vehicle with location data indicating the vehicle has entered into a toll area associated with the TMSS. The TMSS calculates a toll charge for the vehicle to use the toll area based on the location data in the first message. The TMSS also receives one or more second messages from the vehicle with toll-related data collected by the vehicle while operating in the toll area, from the vehicle accessing one or more in-vehicle sensors and an in-vehicle data storage device. The TMSS transmits a third message to the vehicle with the toll charge for viewing by an operator of the vehicle. The toll charge can also depend upon the toll-related data in the second message. The entrance of the vehicle into the toll area can be determined through the use of a geofence. The vehicle may have a location sensor such as a GPS receiver. A toll charging authority may replace the TMSS. The vehicle sensors and data may relate to the number of passengers, vehicle towing status, axle count, vehicle weight, etc..

The present invention discloses a method and system for determining real-time precise orbits and clock offsets of LEO in orbit based on PPP-B2b enhancement, belonging to the technical field of high-precision autonomous orbit determination and clock offset estimation for low-earth orbit satellites. The present invention corrects the orbits and clock offsets of BDS-3 / GPS satellites by using the enhancement information broadcast by the B2b signal of Beidou-3. Under the support of regional BDS-3 / GPS enhancement information, when there are new BDS-3 / GPS tracking satellites, before measurement update, the epoch-to-epoch clock offset variation obtained by using the carrier phase time difference method is used as two orbit determination filtering clock offset parameters for constraint, and the receiver clock offset and undifferenced floating ambiguity parameters are separated in orbit in real time; finally, the precise orbit of LEO and the undifferenced floating ambiguity parameters output by orbit determination filtering are substituted into the phase observation equation to calculate the precise clock offset of the BDS-3 / GPS receiver. The present invention is applicable to the situation where there is only regional GNSS enhancement information support and is less affected by orbit maneuvers.

The application discloses a system for verifying the time precision of a TB time stamp recording device and a method thereof, which comprises a GPS antenna, a GPS receiver module, a microprocessor and a NAND gate; the GPS antenna is used for receiving signals transmitted by GPS satellites and transmitting the signals to the GPS receiver module; the GPS receiver module is used for outputting time service second pulses to the microprocessor and the NAND gate respectively after receiving the signals transmitted by the GPS antenna; the microprocessor is used for outputting a pulse control signal to the NAND gate according to a time information control instruction after receiving the time service second pulses transmitted by the GPS receiver module; and the NAND gate is used for outputting corresponding second pulses to the TB time stamp recording device for recording according to the received pulse control signal. The application is used for solving the technical problem that the precision of the TB time stamp recording device cannot be verified, so as to achieve the purpose of ensuring the precision of the TB time stamp recording device.

A method for dynamically managing road usage charges (RUC) in a vehicle usage management system, comprises receiving, by a RUC managed services server (RMSS), a first message from a vehicle with location data indicating the vehicle has entered a RUC area associated with the RMSS. The RMSS calculates a usage charge for the vehicle to use the RUC area based on the location data in the first message. The RMSS also receives one or more second messages from the vehicle with RUC-related data collected by the vehicle while operating in the RUC area, from the vehicle accessing one or more in-vehicle sensors and an in-vehicle data storage device. The RMSS transmits a third message to the vehicle with the usage charge for viewing by an operator of the vehicle. The usage charge can also depend upon the RUC-related data in the second message. The entrance of the vehicle into the RUC area can be determined through the use of a geofence. The vehicle may have a location sensor such as a GPS receiver. A RUC authority may replace the RMSS. The vehicle sensors and data may relate to the number of passengers, vehicle towing status, axle count, weight, etc..

Provided are a system and method for supporting a return home mode of a drone used on a ship. A drone control device receives GPS reception signal strength information at a first GPS receiver, drone takeoff feasibility information is displayed on a display unit of the drone control device if the GPS reception signal strength is greater than or equal to a set strength, a drone drive motor is controlled by generating a drone drive motor control signal based on ship position information received from the drone control device and drone position information received from a second GPS receiver when a control unit installed in the drone receives return home information from the drone control device after the drone takes off, and the control unit stops the drone drive motor when the difference between the drone position and the ship position is less than or equal to a set distance.

Techniques for direction finding and geolocation of a GPS spoofer. A methodology implementing the techniques according to an embodiment includes steering a beam in a direction selected from a search constellation and measuring a first signal power received through the steered beam. The method also includes steering a null in the selected direction and measuring a second signal power received through the steered null. The method further includes calculating a difference between the first signal power and the second signal power and estimating an angle of arrival (AOA) of the GPS spoofer signal as the selected direction if the calculated difference exceeds a threshold power value. In some such examples, the method includes accumulating signals having four similar estimated AOAs, associated with unique pseudo-random noise codes, and employing a GPS receiver to calculate a candidate position of a source of the GPS spoofer signals based on the accumulated signals.

Systems and methods are provided for visualizing predicted paths of aircraft during taxiing that promote awareness of the pilot regarding potential collisions along the predicted paths. The systems include a database and a controller in operable communication with a GPS receiver, a steering system, the database, and a display device. The controller is configured to receive GPS coordinates from the GPS receiver, a front wheel steering angle from the steering system, aircraft and aerodrome data from the database, determine a predicted path of the aircraft in real-time while the aircraft is taxiing at the airport based on the GPS coordinates, the front wheel steering angle, and state parameters indicated by the aircraft data, and generate a visual representation of the predicted path on the display device, wherein the visual representation includes boundaries defined by tips of wings of the aircraft along the predicted path.

A vehicle control system for camera-based vehicle navigation includes at least one vehicle camera configured to capture an image of a forward view of a vehicle, a global positioning system (GPS) receiver configured to receive a current location of the vehicle, a vehicle user interface including a display, and a vehicle control module.The vehicle control module is configured to obtain the current location of the vehicle via the GPS receiver, identify a sequence of vehicle navigation steps to a destination, capture the image via the at least one vehicle camera, process the image with a machine learning model to detect a plurality of objects in the image, rank the plurality of objects according to landmark evaluation criteria that indicate a probability of object detection by a driver of the vehicle, and display a highest ranked one of the plurality of objects in association with a next vehicle navigation step.

This utility model relates to the field of positioning and navigation mounting components, and more particularly to a mounting device for robot positioning and navigation, comprising a frame assembly mounted on the bottom of a GPS receiver. The frame assembly includes a fixed plate, and a buffer is provided at the bottom of the fixed plate. The buffer includes a buckle plate connected and fixed to the horizontal end of the fixed plate, and a damping spring assembly is provided at the bottom of the buckle plate. The bottom end of the damping spring assembly is connected and fixed to a support plate. This utility model achieves this by having the top of the buckle plate connect to the horizontal end of the fixed plate, and the damping spring assembly is placed between the fixed plate and the support plate. The spring end of the damping spring assembly absorbs impact energy, and the damper end dissipates this energy. Under their combined action, the vibration and impact on the system are effectively controlled. Through the coordinated work of the spring end of the damping spring assembly and the damper, the system can quickly recover to a stable state after being impacted, reducing unnecessary resonance and vibration.

A global positioning system (GPS) receiver may include an antenna configured to receive GPS signals from GPS satellites, a radio frequency (RF) front end configured to pre-process signals received by the antenna, a demodulator / converter configured to perform demodulation and analog-to-digital conversion of output signals received from the RF front end, a clock configured to provide a consistent clock signal, and a digital signal processor configured to receive the clock signal and make time and code measurements associated with determining a location of the GPS receiver based on the signals received by the antenna. The GPS receiver may be configured to eliminate reflected or indirect signals from the time and code measurements.

A system and method transforms conventional waveform measurements from legacy power quality meters into synchro-waveforms. The system and method does not require legacy power quality meters to be equipped with GPS receivers or other time-synchronization hardware. Data-driven methods operate in two steps: first, they perform optimization-based event signature alignment, and then they use the results to estimate a synchronization operator between any two legacy meters.

A pet dropping retrieval and disposal device has a mobile unit and a base unit for automatic collection and disposal of pet droppings. The mobile unit navigates a yard area using a dual track drive system and a GPS receiver to locate droppings via a machine vision system camera and a methane sensor. The collected droppings are transferred to a temporary hopper via a conveyor belt and analyzed by a health sensor for potential health concerns. The base unit provides recharging via a charging port, facilitates disposal into a holding bin, and allows user control through a local control panel. The device communicates telemetry data via a telemetry RF signal to a wireless device for remote monitoring.