48 results about "Virtual coordinates" patented technology

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 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.

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.

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 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 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.

This invention relates to the field of image communication technology, specifically disclosing a multi-screen splicing advertising control system and method that supports material roaming and overlay. The system includes a virtual canvas generation module, an instruction decoding module, a coordinate mapping analysis module, a collaborative instruction encoding module, an adaptive rendering and distribution module, and a boundary collaborative control module. Based on the physical screen, a virtual splicing canvas is determined; the roaming and overlay instructions of the target advertising material are decoded to obtain a virtual coordinate sequence and overlay attributes; the virtual coordinate sequence and overlay attributes are mapped and analyzed, and the obtained physical screen identifier, local physical coordinates, and display layer are collaboratively encoded to obtain control instructions; the control instructions are adaptively parsed and rendered to achieve smooth layer display; and the physical screen is displayed collaboratively controlled according to the roaming state of the target advertising material. This invention can improve the control efficiency of multi-screen splicing advertisements that support material roaming and overlay.

This invention discloses a cross-layer communication method for emergency self-organizing networks based on TPUNB and WIFI, integrating broadband and narrowband technologies. This method constructs a heterogeneous broadband-narrowband converged architecture combining a WIFI star topology and a TPUNB-Mesh topology. It achieves virtual coordinate acquisition and dynamic updates for terminals through dual aggregation nodes. Based on a five-layer architecture, a protocol stack is designed to implement private data encapsulation at the application layer, a network layer AODV routing protocol construction using a greedy search algorithm based on anchor node virtual coordinates, collision backoff control at the data link layer, and fast ack radio frequency driver optimization at the physical layer. Cross-layer collaboration enables data encapsulation, transmission, and parsing. This invention improves the transmission efficiency and reliability of emergency communication networks, reduces congestion and data collision probabilities, adapts to emergency scenarios with randomly distributed nodes and low-speed movement, and solves problems such as low transmission rates, poor routing protocol adaptability, and congestion due to the lack of broadband-narrowband convergence in existing emergency communication systems.

The invention provides a hybrid line fault diagnosis comprehensive error optimization method, which comprises the following steps of: constructing a multi-conductor transmission line model based on line parameters, and establishing a database of frequency-dependent distribution parameters; fault traveling wave full-waveform data are synchronously acquired by multiple terminals, and the complete transient process of voltage and current traveling waves is recorded; performing double-end electromagnetic time inversion processing on the collected fault traveling wave full-waveform data to obtain a time inversion wave; synchronously injecting time reversal waves after time reversal in the virtual environment, and performing propagation simulation of the whole electromagnetic transient process; monitoring space energy density distribution, and identifying an energy focusing peak of a real fault point; and mapping the virtual coordinates to an actual line position, and outputting an accurate positioning result and a fault distance. Complex wave head identification and iterative computation are converted into a visual energy peak detection problem, the process is simplified, and the automation degree of the positioning process and the uniqueness of the result are improved.

The embodiment of the invention relates to a data reading method and device, computer equipment and a computer readable storage medium, and the method comprises the steps: dividing a screen into a plurality of blocks according to a block division rule and the number of screen pixels from each core of a multi-core system; performing virtual coordinate assignment on each block, and determining a virtual coordinate and a read command address of the block; performing block verification on the blocks according to the virtual coordinates of the blocks, and determining valid blocks in the plurality of blocks; and generating a read command according to the read command address of the valid block. Therefore, useless data are screened out during data reading, bandwidth waste is avoided, and the overall performance is improved.

This application relates to a data storage method and system in a distributed heterogeneous environment. The method first acquires multiple request nodes and constructs virtual coordinates based on the communication latency between nodes. This enables the reflection of the actual latency based on the coordinate distance between nodes. Delaunay triangulation is then performed to divide the data into an undirected graph, ensuring the undirected graph conforms to the Delaunay property, thus optimizing the path selection for data retrieval. Next, multiple candidate placement nodes are selected based on the undirected graph as initial placement strategies. Finally, a local search is performed to obtain the final placement strategy, and the corresponding data is stored according to the final placement strategy. The local search, while satisfying latency and capacity constraints, minimizes weights, effectively solving the problems of high retrieval latency and uneven storage load across heterogeneous nodes. It has the advantages of reducing retrieval latency, improving storage efficiency, and achieving load balancing.

The invention discloses a global scale geospatial data processing method and device, a medium and equipment. The invention belongs to the technical field of computers. The method comprises the following steps: constructing a virtual earth based on a preset global scaling factor, and constructing a mapping relation between geographic coordinates and virtual coordinates of the virtual earth; mapping the multi-source geographic data to the virtual earth according to the mapping relation to obtain virtual coordinates of each geographic entity; extracting cross-source geographic data to be processed from the virtual coordinate space; unifying geometric types and attribute field formats of the cross-source geographic data; and based on the unified reference of the virtual coordinate space, carrying out geometric edge matching calculation on adjacent boundaries of the cross-source data, and eliminating boundary gaps or overlapping. By adopting the technical scheme, unified processing of multi-source geographic data under a global scale and seamless connection of adjacent boundaries of cross-source data can be realized, and the problems that processing is difficult under a unified view and gaps or overlapping exist in the boundaries are solved.

The invention discloses a Micro-LED lamp bead positioning method and a storage medium. The Micro-LED lamp bead positioning method comprises the following steps: a global angular point positioning and perspective transformation correction step, which is used for correcting global geometric distortion caused by the visual angle of a camera or the overall deformation of a Micro-LED screen; a subarea sequence lightening and image acquisition step, which is used for sequentially lightening lamp beads of the Micro-LED screen in subareas and sequentially acquiring images of the lightened subareas each time; a step of extracting a robustness observation point set, which is used for processing the partitioned image to obtain an effective observation point set; the row and column datum line reconstruction step based on clustering is used for obtaining a datum line position corresponding to the number of rows and columns of the screen according to the effective observation point set; and a full-array lamp bead coordinate grid generation and dead pixel inference step, which is used for forming a virtual coordinate grid through intersection and judging dead pixels. The method can solve the problems of coordinate missing caused by dead pixels and inaccurate positioning caused by crosstalk, and has the advantages of high positioning precision, high robustness, low cost and high efficiency.

The application relates to the technical field of auxiliary perception, in particular to an auxiliary system and method for perceiving a target, which comprises the following steps: delimiting a haptic perception field; establishing a target object model of a target to be perceived; when the target to be perceived is a two-dimensional structure, forming a target exploration section and acquiring virtual coordinate information; when the target to be perceived is a three-dimensional structure, forming a target exploration shell layer with a preset thickness and acquiring virtual coordinate information; acquiring position information of a haptic perception part of a user; if the position information is located in the range of the target exploration section or the target exploration shell layer, a signal for perceiving the target is fed back to the user; if the position information is located in the range of the target object model except the target exploration section or the target exploration shell layer, a haptic guiding signal is fed back to the user. Through the target exploration section, the target exploration shell layer and the guiding area, the application can ensure the explorability and reduce the phenomenon of haptic form distortion, so that the user can more accurately understand the two-dimensional image contour and the three-dimensional object structure.

A method for calculating an impact point of a fire-extinguishing projectile launcher according to an embodiment comprises: sensing edge coordinates on the edges of an ignition point by a laser sensor of a fire-extinguishing projectile launcher; setting an ignition area on the basis of each of a plurality of edge coordinates; and calculating virtual coordinates outside the set ignition area. In an embodiment, the virtual coordinates are coordinates to which the forest fire is predicted to spread first. In addition, in an embodiment, a fire-extinguishing projectile is launched at the calculated virtual coordinates so that the spread and propagation of the forest fire can be rapidly prevented.

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