14 results about "Virtual coordinates" patented technology

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 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.

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 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.

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.

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 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.

This invention provides a differentiated learning content search method based on knowledge state assessment, belonging to the field of intelligent education technology. The method includes: analyzing learning resources based on a pre-set knowledge graph, labeling related knowledge point nodes and difficulty levels, and constructing a three-dimensional virtual coordinate space to complete resource mapping; obtaining users' historical exam scores and browsing records to generate a knowledge state profile and personalized search vectors; parsing search keywords to generate constraints and initial search points, performing vector-oriented retrieval, and capturing suitable resources through Euclidean distance thresholds and constraints; generating personalized tags based on the captured vectors; calculating recommendation scores by integrating difficulty matching degree and interaction intensity, and outputting tagged results after sorting. This invention achieves end-to-end personalization from resource retrieval and sorting to presentation, providing differentiated learning content based on learners' actual ability levels, effectively solving the problems of homogeneous results and lack of adaptability in traditional search systems.

This invention relates to the field of intelligent robot control technology, specifically to an embodied intelligent robot environmental perception and autonomous decision-making system for logistics sorting. It includes a multimodal perception module for establishing a coordinate system and mapping spatial coordinates from various coordinate systems to a global coordinate system of the sorting area; a target processing and feature optimization module for using a joint clustering algorithm including a similarity threshold to cluster multiple spatial coordinates in the global coordinate system of the sorting area, obtaining a geometric feature set; further splitting the geometric feature set into multiple planar coordinate subsets, and then using a linkage verification method to analyze the contour shape curves corresponding to the planar coordinate subsets, obtaining a target space set including virtual coordinates; reusing the joint clustering algorithm to analyze the virtual feature vectors corresponding to the virtual coordinates in the target space set; and an autonomous decision-making and motion control module for analyzing the coordinates of the intelligent robot's grasping points based on the spatial coordinates in the target space set and generating robot sorting control commands.

The application discloses a random injection signal extraction method of a permanent magnet synchronous motor based on virtual coordinate transformation and belongs to the technical field of position sensorless control of the permanent magnet synchronous motor. First, a voltage signal generator of a high-frequency pulse signal with randomly selected different pulse sequences is designed and generated, a general expression form of a high-frequency current response in a high-frequency virtual coordinate system is derived, and a high-frequency pulse voltage with different pulse sequences in the d-axis is estimated. Second, the high-frequency current response is demodulated in the high-frequency virtual coordinate axis, and position information and position estimation are extracted. The high-frequency pulse voltage signals with different pulse sequences are superimposed on the direct axis of the estimated two-phase rotating coordinate system, the high-frequency current response containing rotor position information is detected, the response signal is demodulated, the rotor speed and position information are acquired, and the dynamic performance and reliability are improved on the premise of retaining the position sensorless steady-state performance based on the high-frequency signal injection.

This invention relates to the field of digital twin warehouse control technology and discloses an intelligent scheduling method for a three-dimensional warehouse with linked digital twins. The method includes: acquiring the real-time coordinate sequence of physical work units and the virtual coordinates of the digital twin model, and calculating the virtual-physical synchronization deviation rate; determining that the work unit is in a response lag state when the deviation rate exceeds the lag threshold; and using the retrieval path reset mechanism of the three-dimensional topology database to intercept virtual node read requests for the work unit and implement node resampling. This method eliminates the risk of global scheduling clock suspension caused by the lag of a single entity by creating local virtual waiting at the logical level, ensuring the continuity of data flow of other work units in a concurrent environment, and improving the operational stability of the three-dimensional warehouse under high throughput conditions.