73 results about "Virtual coordinates" patented technology

The systems and methods display, by at least one processor on a first portion of a real-world environment visible on a display of a user device, one or more virtual objects at a first virtual coordinate in three-dimensional (3D) space. The systems and methods receive a request to move the one or more virtual objects to a second virtual coordinate in 3D space. The systems and methods in response to receiving the request, maintain display of the one or more virtual objects at the second virtual coordinate as a second portion of the real-world environment is visible on the display of the user device.

The invention provides a three-dimensional visual full-field monitoring method and system for the whole process of bridge rotation, and relates to the technical field of bridge monitoring, and the method comprises the steps: obtaining design parameters and a construction plan of a bridge; generating a dynamic BIM bridge model according to the design parameters and the construction plan; setting a virtual sampling point at the virtual swivel key position of the dynamic BIM bridge model, and setting an actual sampling point at the swivel key position of the swivel bridge; acquiring actual coordinate information of the actual sampling point in a preset coordinate system, and determining virtual coordinate information of the virtual sampling point in the preset coordinate system; obtaining construction environment data of the construction site; determining a construction safety coefficient according to the construction environment data, the construction plan, the actual coordinate information and the virtual coordinate information; acquiring working data of the hydraulic system; determining a stability coefficient of the hydraulic system; and determining a full-field monitoring report. According to the invention, the real-time performance and comprehensiveness of bridge rotation whole-process monitoring can be improved.

The invention provides a horizontal measurement method of a large-wingspan movable wing aircraft, which comprises the following steps of: establishing a coordinate system by taking a virtual coordinate on a tool as a reference, adjusting a basic platform and a supporting arc to be within an allowable deviation range, positioning a middle section of a product by using the supporting arc, measuring the middle section, judging whether the levelness of a mounting surface of the middle section reaches the standard or not, and adjusting. And sequentially assembling the rear section and the front section by taking the middle section as a standard of complete machine assembly, completing assembly and measurement of the fuselage, and adjusting each section of the fuselage in real time according to a measurement result. And then the wing is assembled, and measurement of the wingtip coordinate and the deflection angle is completed. The tool has the advantages that assembly and measurement are carried out on one tool, alternate station change of products between an assembly table and a measurement table is avoided, a machine body does not need to be rotated during measurement, measurement is completed in the assembly state, the assembly efficiency is guaranteed, and the product safety can be guaranteed.

The invention provides a transformer abnormal state intelligent identification method, system and device, and the method comprises the steps: an inspection step: obtaining a transformer substation environment image shot by an unmanned plane, and constructing a transformer substation three-dimensional map; a transformer defect screening step: screening an abnormal transformer in the three-dimensional map of the transformer substation through target detection, and obtaining a flight path of an unmanned aerial vehicle; a flight path optimization step: calculating the defect detection value and flight cost of each coordinate point, dynamically adjusting the flight path of the unmanned aerial vehicle based on a dynamic balance strategy, identifying the corner angle of the transformer, generating a virtual coordinate point, and planning an equidistant shooting path surrounding the virtual mark point according to the virtual coordinate point; and a multi-modal identification step: based on the flight path of the unmanned aerial vehicle, synchronously acquiring visual images, infrared thermal imaging and sound data shot by the unmanned aerial vehicle, and identifying the abnormal state of the transformer through a multi-modal data fusion strategy.

A computer-assisted device includes an articulated arm having a plurality of joints including a first joint and a second joint, the articulated arm configured to be coupled to an imaging device and a control unit including one or more hardware processors. The control unit is configured to, when coupled to the articulated arm and a table determine a virtual coordinate frame based on a pose of the imaging device before the first joint is set to a floating mode, configure the first joint to the floating mode, detect movement of the first joint, determine movement of the table based on motion data received from the table, transform the determined movement of the table to the virtual coordinate frame, and drive the second joint based on the movement of the first joint and the determined movement of the table in the virtual coordinate frame.

The systems and methods display, by at least one processor on a first portion of a real-world environment visible on a display of a user device, one or more virtual objects at a first virtual coordinate in three-dimensional (3D) space. The systems and methods receive a request to move the one or more virtual objects to a second virtual coordinate in 3D space. The systems and methods in response to receiving the request, maintain display of the one or more virtual objects at the second virtual coordinate as a second portion of the real-world environment is visible on the display of the user device.

The invention relates to the technical field of image synchronization, in particular to a multi-screen collaborative immersive interactive cinema image synchronization method and system.The method comprises the steps that when the system is initialized, a multi-screen projection module completes image splicing and sends real-time splicing parameters to a coordinate mapping calibration module; the coordinate mapping calibration module establishes a basic mapping relation between physical coordinates and virtual coordinates based on the real-time splicing parameters, and the environment sensing module collects environment parameters and transmits the environment parameters to the cooperative control unit. According to the invention, a dynamic mapping algorithm model is constructed, real-time splicing parameters of the multi-screen projection module and light and temperature data collected by the environment sensing module are integrated, and a mapping relation between physical coordinates and virtual coordinates is corrected in real time; the problems of aiming deviation and special effect dislocation caused by the fact that coordinate mapping lacks dynamic adaptation and cannot be adjusted along with changes of splicing parameters in the prior art are effectively solved.

The application provides a control method and device of a storage cabinet and electronic equipment. The method is applied to a response server. The response server comprises a plurality of management systems and a centralized control system. The method comprises the following steps: the centralized control system of the response server receives a service processing request, then determines a target storage cabinet according to a target virtual coordinate, and determines a target management system corresponding to the target storage cabinet in the plurality of management systems, and then processes the service processing request through the target management system. The service processing request is sent by an application server through a network request mode. In other words, the application server does not need to repeatedly introduce the target management system to control the target storage cabinet, thereby saving the management cost and time of the storage cabinet, avoiding secondary development of the application server introducing the target management system, and improving the management efficiency of the storage cabinet.

The application provides a kind of intelligent device remote control method and system based on virtual coordinate mapping, the control method is applied in the control system including intelligent device, at least including virtual presentation interface and calibration control module presentation device and at least including controller and control module control device, specifically: after presentation device receives the fixed visual angle data of intelligent device, based on demand information generates start signal, controller and intelligent device form virtual space mapping, and project to presentation device, control instruction is generated according to the spatial position of controller;Control instruction is calibrated based on the relative position of presentation device and controller, and intelligent device responds to control instruction and executes corresponding action.The application introduces the presentation device of fixed position on the basis of virtual space mapping control, intuitively reflects the corresponding relationship between control instruction and intelligent device action, and corrects the control instruction error caused by the movement of overall system, improves control operation efficiency and accuracy.

The invention discloses a rocker calibration and operation mapping method and device, electronic equipment and a storage medium, which are used for solving the technical problem that the degree of freedom of current rocker operation is not completely matched with the utilization of a screen display area. The method comprises the following steps: acquiring an initial circular operation area of a rocker; calibrating the initial circular operation area to obtain a calibrated circular operation area; determining the length-width ratio of a screen display area corresponding to the rocker operation, and constructing a virtual rectangular area of the calibrated circular operation area based on the length-width ratio; and acquiring a real-time rocker position when the user operates the rocker, calculating a virtual coordinate position of the real-time rocker position in the virtual rectangular area, and mapping the virtual coordinate position to the screen display area. Therefore, when a user actually operates the rocker, the system can quickly obtain the corresponding screen coordinates through mapping calculation and execute the corresponding operation, the problem that the current screen rocker operation is not matched with the reality is solved, and the user experience is greatly improved.

This invention discloses a safe multi-robot cooperative control method and system for manifold tracking, comprising the following steps: S1, obtaining the robot's current real physical position and randomly generating virtual parameters; S2, constructing a guidance propagation term and an error reduction term, and summing the guidance propagation term and the error reduction term to obtain the robot's manifold tracking field; S3, obtaining cooperative control terms and inter-robot collision avoidance terms based on the deviation between the real physical positions and virtual parameters of adjacent robots, and constructing obstacle avoidance terms by combining the obstacle description implicit function; S4, fusing to form a unified composite navigation field, and generating target operation manifold motion control commands for robot navigation in the real environment based on the unified composite navigation field. This invention, by constructing a unified high-dimensional navigation field framework, organically integrates the dynamic allocation of virtual coordinates with physical space safety constraints, thus eliminating the singularity of the navigation field and achieving synergistic optimization of task orientation and safety protection.

The invention relates to the technical field of three-phase systems, and provides a three-phase voltage state estimation method and system based on virtual coordinates, and the method comprises the steps: calculating the voltage peak value of each phase for three-phase voltages, and determining that a phase is open if the peak voltage of a certain phase is lower than a threshold value in the three peak voltages; for three-phase voltage, virtual beta-axis voltage is generated through an all-pass filter, actual beta-axis voltage is obtained through Clark transformation, the product of the virtual beta-axis voltage and the actual beta-axis voltage serves as an evaluation function, and a positive sequence and a negative sequence are distinguished according to the positive and negative of the evaluation function. The system state can be accurately and effectively judged under the conditions of three-phase imbalance and voltage distortion, the anti-noise capability and the anti-harmonic interference capability are high, and safe and stable operation of equipment under the abnormal condition is ensured.

The invention relates to the technical field of image processing, and discloses a motion data fusion and path generation method for a virtual camera, and the method comprises the steps: collecting optical mark position information of the virtual camera and local displacement information of local rocker equipment, and obtaining global pose data and incremental displacement data; performing three-dimensional virtual coordinate mapping on the global pose data and the incremental displacement data to obtain virtual global pose data and virtual incremental displacement data; performing dynamic weight fusion on the virtual global pose data and the virtual incremental displacement data to obtain target pose data; performing motion path fitting on the three-dimensional coordinate information of the key points set by the user to obtain a continuous Bezier curve track; performing differential analysis on the time sequence information of the target pose data to obtain a movement speed so as to construct a speed control curve; performing global constraint smoothing on the continuous Bezier curve trajectory to obtain a motion path; according to the invention, the efficiency of motion data fusion and path generation of the virtual camera can be improved.

The systems and methods display, by at least one processor on a first portion of a real-world environment visible on a display of a user device, one or more virtual objects at a first virtual coordinate in three-dimensional (3D) space. The systems and methods receive a request to move the one or more virtual objects to a second virtual coordinate in 3D space. The systems and methods in response to receiving the request, maintain display of the one or more virtual objects at the second virtual coordinate as a second portion of the real-world environment is visible on the display of the user device.

To provide a puncture training system that simulates shunt echo for students and beginners. [Solution] The device comprises an operating means (110), a spatial information acquisition means (130) that acquires the position and posture of a puncture device dummy (120), a coordinate calculation means (140) that calculates coordinates relating to the position and posture of the operating means (110) and the puncture device dummy (120) based on the spatial information acquired by the spatial information acquisition means (130), a recording means (160) that records echo cross-sectional image data (161) of the body of the person to be punctured, a control processing means (150) that includes an AR image generation unit (151) that writes the spatial coordinates calculated by the coordinate calculation means (140) and virtual coordinates outside the body on the same coordinate axis, selects the echo cross-sectional image data (161) that corresponds to the spatial coordinates of the operating means (110), and superimposes an image of a virtual puncture needle on the echo cross-sectional image data (161), and a monitor (170) that displays an image of the echo cross-sectional image data (161) and an image of the virtual puncture needle.

A host, a tracking system, and a tracking method are described herein. A storage circuit is configured to store a program code. A processor is coupled to the storage circuit and configured to access the program code to execute: aligning a real coordinate system of a real world with a virtual coordinate system of a virtual world; obtaining a detecting status of a real object in the real world through an object sensor; obtaining a reference status in the real world; in response to a touch action to the real object, comparing the detecting status with the reference status; and in response to a status difference between the detecting status and the reference status being greater than a threshold value, calibrating a virtual object coordinate of the virtual object.

The method comprises: determining a display grid based on selected spline line information and length information perpendicular to a direction of the spline line; obtaining a set of uv coordinates of to-be-displayed information in a uv coordinate system; determining a set of virtual coordinates of the to-be-displayed information in a virtual space coordinate system based on the set of uv coordinates and a coordinate conversion relationship; and rendering the to-be-displayed information in a virtual space based on the set of virtual coordinates and the display grid to obtain a rendered image. The method can obtain a rendered image that meets personalized requirements of a user.

Embodiments of the present application disclose a time-keeping method and device for a distributed laboratory system, electronic equipment and a storage medium. Calibration data of a coordinated universal time traceability module and clock difference data and corresponding stabilities of at least two time-keeping clocks in the distributed laboratory system are obtained. A local atomic time is determined according to the clock difference data and the corresponding stabilities. It is determined whether the coordinated universal time traceability module is operating normally. If yes, the local atomic time is calibrated according to the calibration data to obtain a standard time. If not, reference data of a reference clock and prediction data of a virtual coordinated universal time prediction module and corresponding uncertainties thereof are obtained, and the local atomic time is calibrated according to the reference data and the prediction data and the corresponding uncertainties to obtain the standard time. Embodiments of the present application improve the disaster recovery performance and safety of the generation of the standard time of the distributed laboratory system.

The invention belongs to the technical field of wind-solar simulation power generation, and provides a wind-solar dual-channel collaborative simulation power generation system and a control method thereof. The system comprises a controller, and a power generation unit, a dual-input parallel boost DC-DC converter and a DC-AC inverter which are connected with the controller respectively, the controller is configured to track the maximum power point of the power generation unit through a hierarchical coordination control strategy, and the process is as follows: at a bottom layer, virtual coordinates are constructed for the power generation unit based on a four-quadrant dynamic tracking algorithm, multichannel synchronous sampling and coordinate resolving of the power generation unit are executed, and the deviation between a power generation level and the maximum power point is obtained; dynamically compensating the deviation between the power generation stage and the maximum power point in the middle layer; and at the top layer, a control signal is generated by using the dynamically compensated deviation between the power generation stage and the maximum power point to control the angle adjustment of the double-shaft tracking mechanism and the paddle adjusting mechanism, so that the maximum power point tracking of the power generation unit is realized.

Embodiments of the present application provide a camera calibration method and device, electronic equipment and storage medium, and relate to the technical field of computer images. The method comprises: constructing a translation calibration matrix; controlling the end effector to rotate to a first auxiliary position where the calibration object is located outside the field of view of the camera; controlling the end effector to translate to a second auxiliary position where the calibration object is located within the field of view of the camera, and controlling the camera to take a picture at the second auxiliary position to obtain an auxiliary image; determining virtual coordinates of the end effector at the first auxiliary position and calibration object pixel coordinates by using pixel coordinates in the auxiliary image, first and second auxiliary position physical coordinates, and the translation calibration matrix; fitting a plurality of virtual coordinates and a plurality of first auxiliary position physical coordinates to obtain a mechanism rotation center; and determining a calibration result by using the mechanism rotation center and the translation calibration matrix. The scheme provided by the embodiments of the present application can improve the accuracy of camera calibration in a small field of view environment.

A process includes establishing, with a first client computing device, a first peer-to-peer connection with a second client computing device. The process also includes determining, with the first client computing device, that a first media stream provided by the first client computing device satisfies at least one selective forwarding unit streaming condition, and providing, with the first client computing device and in response to the first media stream satisfying the at least one selective forwarding unit streaming condition, the first media stream to the second client computing device via a selective forwarding unit.

This invention discloses a method for laying out irregularly shaped decorative lines based on 3D laser positioning and BIM. The method includes the following steps: obtaining virtual coordinates of the design curve from the BIM model; converting the virtual coordinates into actual coordinates controlling the laser angle through a rigid transformation model and generating a projection path; pre-treating and coating a photosensitive layer on the construction surface; projecting a laser using a laser projector to excite a visible colored laying out path on the photosensitive layer; and finally marking and solidifying the path. This invention, by combining BIM modeling with a laser projector, transforms the virtual path into an actual laying out path, achieving full automation and high precision in laying out complex irregularly shaped curves, significantly improving the quality and efficiency of decorative construction.

The application provides a kind of multi-channel phased array transceiver multi-beam test system and transmitter, receiver test method, it is related to phased array test technical field.System includes: virtual coordinate generation module, generates the virtual coordinate data of different rotating postures of antenna;Multi-channel phased array transceiver generates beam weight according to virtual coordinate;Power division combining network has wave path equal length and power equal division characteristics;Test instrument, signal acquisition or input;Data processing module is based on array coherence gain and unit directional diagram calculation equivalent directional diagram gain.The application is replaced by virtual posture construction darkroom turntable, combined with equal length power division network to realize coherence gain detection, can be quickly completed in laboratory environment equivalent test of transceiver multi-beam performance, greatly reduces test cost and period, improves test efficiency and universality.

The invention relates to the technical field of virtual reality, and provides a virtual reality space positioning method and device, and the method comprises the steps: transmitting positioning signals to at least two terminal controllers carried by a user in a television end interaction region, the positioning signals are used for indicating the terminal controllers to calculate respective real-time positioning parameters when receiving the positioning signals; receiving real-time positioning parameters returned by the terminal controllers, and determining terminal space coordinates of the terminal controllers in the television end coordinate system according to the real-time positioning parameters; according to the space coordinates of the terminals and the position relation between the terminal controllers and the user, user space coordinates of the user in the television end coordinate system are determined; according to the pre-calibrated conversion relation between the television end coordinate system and the VR application coordinate system, the user space coordinate is converted into the user virtual coordinate under the VR application coordinate system, real-time positioning of the user in the VR application coordinate system is achieved, and therefore VR application can support strong interaction content such as games.

The invention discloses an object interaction method and device, electronic equipment and a computer readable storage medium, and relates to the field of meta universe. The method comprises the steps that click operation based on a display interface is received, click coordinates are carried in the click operation, and the display interface displays a virtual space; determining a virtual coordinate range corresponding to the click coordinate in a virtual space; according to the virtual coordinate range and a boundary coordinate range corresponding to the target object, determining an interaction result of whether to interact with the target object, the target object being located in the virtual space, and the coordinates in the virtual coordinate range being the same as the depth coordinates of the coordinates in the boundary coordinate range; and displaying an interaction action corresponding to the click operation on the display interface under the condition that the interaction result is interaction with the target object. According to the method and the device, the technical problem of poor user interaction experience caused by incapability of clicking when a user clicks a tiny object in the prior art is solved.

The invention provides an intelligent device stepless control method and system based on virtual coordinate mapping, the control method is applied to a control system comprising an intelligent body and a control device at least comprising a controller and a control module, and the control method specifically comprises the steps that a starting signal is generated based on demand information, and the controller and the intelligent body form virtual space mapping; generating a control instruction according to the spatial position of the controller; and the agent responds to the control instruction to execute a corresponding action. The virtual space mapping of the controller and the intelligent agent is formed, the control instruction of the intelligent agent is generated according to the space position of the controller, in the control process, control over the intelligent agent can be achieved by moving the controller, redundant hand actions are not needed, and the control efficiency is improved. And multi-degree-of-freedom and multi-dimension stepless control can be realized only by moving the relative position of the hand, so that the control operation difficulty of the intelligent agent is effectively reduced, and the control continuity is improved.

The present invention relates to the field of die bonding equipment and provides a position calibration method between a die bonding camera and a die bonding head, comprising placing a reflector in a die bonding area, moving the nozzle center of the die bonding head to the field of view center of the die bonding camera, and performing mark recognition; the die bonding head moves in a coordinate system lattice planned in the calibration area of ​​the die bonding, recording the coordinate position of the die bonding head and the camera coordinates, performing affine transformation on the coordinate position of the die bonding head and the camera coordinates, and solving the affine transformation matrix to obtain the virtual coordinates of the die bonding head, and then obtaining an error table Grid between the coordinate position of the die bonding head and the virtual coordinates. E ; A target position pixel coordinate P is given by the solid crystal camera W , obtain the target virtual coordinate P through reflection transformation A , and then according to the error table Grid E The bilinear interpolation calculation error v is used to obtain the actual target position P of the die bonding head. B The present invention utilizes affine transformation and bilinear interpolation to calibrate the position, thereby effectively improving the precision of the die bonding.

The application discloses a multi-target registration method in double-station passive cross positioning. Firstly, the virtual coordinates of targets are calculated respectively according to all angle measurement information of the main station and the auxiliary station; secondly, corresponding angle measurement lines are constructed according to the calculated virtual coordinates; thirdly, the distances D between all angle measurement lines of the auxiliary station and a certain angle measurement line of the main station are calculated, and the distance straight lines are determined; then, the intersection points of each distance straight line and the current angle measurement line and the distances SC between the intersection points and the main station are calculated; finally, the D / SC formed by the current angle measurement line of the main station and all angle measurement lines of the auxiliary station are calculated, and the minimum value of the D / SC is searched, and the angle measurement of the main station and the angle measurement of the auxiliary station corresponding to the minimum value are the angles of the same target relative to the two stations. The method realizes the information registration of the target by defining the opening angle of the shortest distance line segment between the angle measurement lines relative to the station, effectively improves the efficiency of the information registration, and has low complexity, so that the calculation time can be saved.

The invention provides a terminal equipment control method and device, equipment, a medium and a product, and relates to the technical field of data processing. According to the method, a touch coordinate point corresponding to a touch operation of a user is determined, whether the touch coordinate point is located in a function response area or not is judged, when the touch coordinate point is not located in the function response area, a corresponding virtual coordinate point is determined based on the function response area, and then a corresponding virtual coordinate point is determined based on the virtual coordinate point and the function response area. Determining whether to control the terminal equipment to execute a corresponding function; according to the method, the virtual coordinate points are introduced, so that the accuracy and response rate of application response are improved, and the event probability of touch non-response is reduced.

A host, a tracking system, and a tracking method are described herein. A storage circuit is configured to store a program code. A processor is coupled to the storage circuit and configured to access the program code to execute: aligning a real coordinate system of a real world with a virtual coordinate system of a virtual world; obtaining a detecting status of a real object in the real world through an object sensor; obtaining a reference status in the real world; in response to a touch action to the real object, comparing the detecting status with the reference status; and in response to a status difference between the detecting status and the reference status being greater than a threshold value, calibrating a virtual object coordinate of the virtual object.