112 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.

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.

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 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.

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 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

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 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..

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.

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 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.

Information about specific objects can be efficiently collected from various locations. [Solution] The information provision system 1 comprises an in-vehicle terminal device A mounted on a mobile vehicle M and an intermediate server X. The in-vehicle terminal device A comprises a determination means for determining whether an object (e.g., a utility pole with a nest) is included in an image captured by an imaging unit 22, a text data transmission means for transmitting information related to the object (such as the name of the object and its position in the captured image) as text data to the intermediate server X if it is determined that an object is included, a GPS receiver 23 for acquiring the location information of the in-vehicle terminal device A, and a location information transmission means for transmitting the location information to the intermediate server X. The intermediate server X can transmit the text data and location information received from the in-vehicle terminal device A to the GIS server Y.

The invention belongs to the technical field of coast engineering measurement, and particularly relates to an automatic measuring vehicle for measuring an artificial shoreline. The measuring vehicle comprises a vehicle body, a high-precision GPS receiver, a laser sensor, a controller and a safety protection system. The controller controls the vehicle body to automatically run along the shoreline through a closed-loop algorithm, synchronously collects position and distance data, and solves the coordinates of the shoreline; meanwhile, multiple levels of safety protection mechanisms, such as an early warning air bag, graded deceleration and an emergency separation structure, are integrated, the system adapts to a complex levee top environment, efficient, automatic and high-precision shoreline surveying and mapping operation can be achieved under the conditions of a no-fly zone and the like, and the measurement safety and the data reliability are remarkably improved.

The application discloses a Beidou short message interference suppression method and device, computer equipment and a storage medium, which are used for suppressing the interference of a Beidou short message signal on an airborne GPS receiver. The main technical scheme is as follows: determining whether an airborne global positioning system (GPS) received signal is interfered by a Beidou short message signal; if the airborne GPS received signal is interfered by the Beidou short message signal, performing wavelet packet transformation on the airborne GPS time domain signal interfered by the Beidou short message signal to obtain wavelet packet coefficients; performing suppression processing on the wavelet packet coefficients, wherein the suppression processing is to set the coefficients with absolute values higher than a wavelet packet coefficient threshold to preset values; and performing inverse wavelet packet transformation on the wavelet packet coefficients subjected to the suppression processing to obtain a time domain signal of the airborne GPS received signal after suppression of the Beidou short message interference signal.

The utility model provides a portable underground pipeline detection device, which relates to the field of underground pipeline detection devices and comprises a detection unit, a displacement assembly is arranged at the bottom of the detection unit, and a pushing assembly is arranged on one side of the displacement assembly. The detector is matched with the GPS receiver to obtain and sense the position information of the underground pipeline in real time so as to position the underground pipeline, in addition, the pushing assembly can push the detection unit and the displacement assembly, when the four moving wheels roll on the ground, the detection unit can be driven to move, and the underground pipeline can be positioned conveniently. When the device meets an uneven road surface, the elastic force of the springs can promote the frame rods and the moving wheels to move, it is ensured that the moving wheels make contact with the ground all the time, four-point supporting is achieved, and in the displacement process, if jolting occurs, the moving wheels can be driven to move. The synergistic effect of the damper, the spring and the rubber plate can effectively counteract bumping vibration force during movement, so that the stability of the detection unit after displacement or positioning is ensured.

The utility model relates to a pile foundation casing measuring and positioning device which comprises a fixed cross and a plurality of telescopic frames, the fixed cross comprises two sections of connecting rods which are perpendicularly connected in a crossed mode, and a GPS receiver is installed at the intersection point of the two sections of connecting rods; each telescopic frame is inserted into one end of the corresponding connecting rod, and the connecting rods and the telescopic frames inserted into the connecting rods are provided with scales with the same direction and interval. The telescopic frames are connected to the four ends of the fixed cross in an inserted mode, so that the pile foundation casing measuring and positioning device can be placed on the pile foundation casing and adapt to pile foundations of different sizes, storage and carrying are convenient, the GPS receiver is installed on the fixed cross, the actual deviation of the pile foundation casing is recorded through the GPS receiver, the connecting rods and the scales of the telescopic frames, and the measuring and positioning accuracy of the pile foundation casing is improved. According to the technical scheme, an operator is prevented from measuring on the auxiliary wood board, and the technical problems that in the related technology, due to the fact that the inner diameter of the pile foundation casing is long, the erected auxiliary wood board is not provided with a protective fence, meanwhile, the field environment is complex, and danger is likely to happen when the measurer works on the auxiliary wood board in a lofting mode are solved.

A smart nose box is provided that includes both a housing portion and a lid portion. The housing portion includes monitoring circuits for monitoring the health of lamps in a towable asset. The lid portion includes a battery, a GPS receiver, and a telematics transceiver.

The invention relates to the technical field of GPS receivers, and discloses a GPS receiver for mine geology and landform surveying and mapping, the GPS receiver comprises a GPS receiver body and a mounting rod arranged at the bottom of the GPS receiver body, the outer wall of the mounting rod is provided with a plurality of mounting grooves distributed in an annular array, the inner walls of the mounting grooves are provided with protection assemblies, and the protection assemblies are arranged in the mounting grooves. And an emergency assembly is arranged at the bottom end of the mounting rod. In the unfolded state of the GPS receiver for mine geology and landform surveying and mapping, the deformation plate and the protection plate form an outer layer protection structure, the protection plate is located on the outer side of the GPS receiver body and makes contact with obstacles such as ore firstly during collision, equipment is prevented from being directly damaged, and if the equipment falls off, the arc-shaped damping plate on the side face of the protection plate makes contact with the ground firstly; and the elastic metal material can convert kinetic energy into elastic potential energy and internal energy through deformation, and is matched with sliding of the sliding plate to further buffer the impact force, so that the damage of collision to the machine body is greatly reduced, and the use safety of the equipment in a complex mine environment is guaranteed.

This invention provides a vehicle position estimation method that can improve the accuracy of vehicle position estimation while suppressing an increase in processing load. [Solution] First, the driving environment around the vehicle is determined (S107). The vehicle is equipped with multiple types of sensors (e.g., GPS receiver, LiDAR, camera, radar). Next, a table of information showing the correspondence between the driving environment and the sensors used to estimate the vehicle's position is referenced, and the sensors associated with the determined driving environment are identified (S111). Subsequently, the vehicle's position is estimated based on the detection results of the identified sensors (S112).

Collision avoidance control system (100) comprising: a GPS receiver (110) configured to receive position information of a vehicle (A, 210); a navigation system (120) in which map information is stored; a control unit (140) configured to receive the position information of the vehicle (A, 210) from the GPS receiver (110) and the map information from the navigation system (120); and a sensor unit (130) configured to detect at least one target vehicle (B, 220, 222) that is near a roundabout (230), and to obtain driving information about the target vehicle (B, 220, 222), including a distance to the target vehicle (B, 220, 222), a position of the target vehicle (B, 220, 222) and / or a speed of the target vehicle (B, 220, 222), and a forward vision image information of the vehicle (A, 210), wherein the control unit (140) is configured toto calculate an estimated collision point (260) based on the map information, the position information of the vehicle (A, 210) and the driving information about the target vehicle (B, 220, 222), to determine a collision risk based on an absolute value of a difference between a first arrival time (TA) of the vehicle (A, 210) at the calculated estimated collision point (260) and a second arrival time (TB) of the target vehicle (B, 220, 222) at the calculated estimated collision point (260) and to adjust a speed of the vehicle (A, 210) in response to the determined collision risk, wherein the control unit (140) is configured to: derive a plurality of characteristic points with reference to corresponding corners (1, 2, 3, 4) of the target vehicle (B, 220, 222) from the image information obtained by means of the sensor unit (130). extract; extract at least one interpolation point (5, 6) by linear interpolation with reference to the corners,to calculate the points arranged in the steering direction of the target vehicle (B, 220, 222) when the total length of the target vehicle (B, 220, 222) is greater than a predetermined length; and to calculate a plurality of second arrival times (TB_1, TB_2, TB_3, TB_4, TB_5, TB_6) that require the extracted plurality of characteristic points and the calculated minimum interpolation point (5, 6) to reach the estimated collision point (260).

This invention relates to the field of vehicle positioning and navigation technology, and provides a fusion positioning method that takes into account vehicle dynamics and nonholonomic constraints. The method includes the following steps: reading information provided by a GPS receiver, IMU sensor, vehicle CAN bus, etc.; establishing a coordinate system based on the read information; calculating position, velocity, and attitude information using an INS kinematic model based on information provided by the IMU sensor and GPS receiver (or UWB); establishing state equations and observation equations, estimating navigation error values ​​and IMU sensor bias values ​​using an error state Kalman filter, and using the results to correct the INS kinematic model; establishing a trajectory estimation model based on vehicle dynamics, establishing state equations and observation equations, and estimating position and heading angle information using an extended Kalman filter. This method can improve the accuracy of navigation and positioning when GNSS signals are interfered with or interrupted, effectively improving positioning accuracy and extending positioning time.

This system provides a patrol support system that can reduce unnecessary power consumption without compromising the accuracy of license plate reading. [Solution] A patrol support system that assists in patrolling to confirm the presence or absence of people inside vehicles parked in a parking lot, wherein the control unit analyzes the image data input from the imaging unit, reads the information written on the license plate of the vehicle captured in the image data as text data, generates display data to be displayed on the display unit based on the text data, and determines the type of control command data to be output to the light based on the time data input from the timing unit and the signal strength data input from the GPS receiver.