145 results about "Virtual position" patented technology

Disclosed is a method (100) and a system (200) for a creating phase and a viewing phase of a virtual position anchor. The step of creating phase further comprises of receiving, by a processor, an instruction to generate the virtual position anchor at a virtual position that is globally fixed near a real-time object, receiving, by the processor, sensor data from a user device relating to the virtual position anchor, calculating, by the processor, the virtual position based on the sensor data received from the user device, and placing, by the processor, the virtual position anchor at the virtual position near the real-time object.

A system configured to perform an accuracy check of a tracked instrument can include a processing circuitry and memory coupled to the processing circuitry. The memory can include instructions to cause the system to perform operations. The operations can include determining a virtual position of a display device. The operations can further include determining a virtual position of the tracked instrument. The operations can further include determining a point of contact on the display device between the tracked instrument and the display device. The operations can further include determining an expected point of contact on the display device between the tracked instrument and the display device based on the virtual position of the display device and the virtual position of the tracked instrument. The operations can further include determining whether the tracked instrument is accurate based on a difference between the point of contact and the expected point of contact.

Disclosed are an apparatus and a method for generating an operable area of a surgical robot. The method for generating the operable area according to the present disclosure comprises the steps of: setting virtual positions of an affected area and the surgical robot, and a distance between the affected area and the surgical robot; determining a position, a shape and a size of the operable area based on the virtual position and the distance; determining a plurality of test positions for simulating movement of an end effector of the surgical robot inside or on the surface of the operable area; for each test position, simulating the movement of an end effector according to a pre-planned cutting path of the surgical robot; and generating a final operable region based on the simulation results at the plurality of test positions. In this way, the operable area where no problem occurs when the kinematics solution of the surgical robot is obtained is recognized before the surgery, and therefore interruption or delay in the surgery process is effectively prevented.

A three-dimensional computer-generated environment can be presented to a user. The user can create a virtual representation of a real-world object within the computer-generated environment by directing an input device towards the real-world object and tracing contours of the real-world object. The virtual representation can include voxels. The user can edit the virtual representation or create a new virtual object formed of voxels by depositing or removing voxels at virtual locations within the computer-generated environment based on selection inputs, release inputs, and optionally movement inputs detected by the input device. In some cases, the user can provide inputs via another input source, such as a hand of the user, that are detected by additional sensors or devices.

The invention discloses a 2-D motorcade dynamic performance sliding mode control method for error adjustment based on a virtual position, and relates to the field of motorcade cooperative control. According to the method, a virtual position following strategy is designed under a 2-D motorcade cooperative control technical framework for the first time. A virtual position corresponding to each following vehicle is set, so that the following vehicles can predict the path change of a motorcade in advance through the respective corresponding virtual positions, and the vehicle course angle error in the following process is remarkably reduced; a novel finite time performance function is designed, a convergence region can be sensitively transformed according to an initial value of a spacing tracking error, and control parameters are automatically adjusted in real time according to an error state. Through the function, the vehicle distance error can be quickly and stably converged to a predefined area within finite time under the condition that a traditional pilot-front vehicle following strategy is adopted. The motorcade can automatically adapt to control requirements under different driving conditions, and stable operation of the motorcade under various complex road conditions is ensured.

A system is disclosed, including a processor and a memory. The memory stores instructions that, when executed by the processor, configure the system to perform operations. Surface plane information is obtained, defining a surface plane passing through a surface location and oriented according to a surface normal. An edge is detected in an image. Virtual content is presented, having a virtual position based on an orientation of the edge and the surface plane information.

A system associated with an immersive experience framework may include an immersive virtual location data store containing information about a plurality of three-dimensional scenes (with each scene being associated with an immersive virtual location). An immersive virtual location tool may receive, from a creator, an immersive virtual location request (e.g., including an environment description). A request prompt is created based on the environment description and transmitted to a text-to-video generative AI model. A video of the virtual location is received from the generative AI model and converted into a three-dimensional scene using a volume rendering technique. Information about the scene is stored in the immersive virtual location data store and a user can interact with the scene using a substantially real-time experience interaction engine. In some embodiments, a JSON file describing the scene is directly generated using a LLM without creating the video.

The invention discloses an intelligent warehousing operation method and device for an unmanned forklift and a medium, and relates to the technical field of logistics automation, and the method comprises the steps: building a three-dimensional point cloud map based on the physical layout information of a target warehouse, mapping the state information corresponding to a physical entity in the target warehouse into the three-dimensional point cloud map, and storing the state information corresponding to the physical entity in the target warehouse in the three-dimensional point cloud map; constructing a digital twinborn model corresponding to the physical entity; the original UWB position of the unmanned forklift in the target warehouse is obtained in real time through the UWB communication base station, and the original UWB position is mapped to the digital twinborn model; receiving a task demand, generating an optimal path through a digital twin model according to the target cargo position and the original UWB position, and issuing the optimal path to the unmanned forklift; and based on the cargo virtual position of the target cargo, determining a position deviation through a digital twin model. The UWB base station obtains the original position of the unmanned forklift in real time and maps the original position to the digital twin model, real-time synchronization of the physical forklift and the virtual model is formed, and the movement track of the forklift in the three-dimensional space is mastered more accurately.

A computer implemented platform agnostic system for spatial synchronization of physical and virtual locations that provide user experiences to be created or where local and remote users can interact. The system having a central server, at least one XR headset connected to the central server, and instructions executable on the server and XR headset for mapping a physical location into a digital twin or shared XR virtual environment; mapping a shared XR virtual environment; interacting with the one or more than one shared XR virtual environment; tracking one or more than one user accurately in both the physical and the one or more than one XR virtual environment without needing expensive equipment external to the one or more than one users' XR headset integrated display system, wherein the executable instructions are platform agnostic; and controlling the XR virtual environment, assets, content, theme, script / narrative, and interactions in real-time.

The present application provides output control device, output control system, and control method. The image and the sound with the sense of presence are provided to the passenger of the moving body. The output control device (1A, 1B, and 1C) has: position direction determination part (11), which determines the real position and the real orientation; reading part (12), which reads virtual space data (31); virtual position decision part (131), which decides the virtual position and the virtual orientation according to the real position and the real orientation; display control part (14), which makes the display device (4) display the image of the partial area or the partial object of the virtual space based on the virtual position and the virtual orientation and the setting position of the display device (4); sound output control part (15), which controls the position of the sound image formed by the output sound from the loudspeaker (5) based on the virtual orientation and the relative position relationship between the virtual position and the sound source body.

The application discloses a floor tile screen display control method and device and a computer readable storage medium. The method comprises the following steps: in response to the floor tile screen being blocked, obtaining blocking information of the floor tile screen, wherein the blocking information is used for indicating a blocking area on the floor tile screen, and the blocking information is obtained by at least one sensor connected with the floor tile screen; mapping the blocking information to a target coordinate system, and determining position coordinates of a plurality of blocking position points in the blocking area; clustering the plurality of blocking position points based on the position coordinates of the plurality of blocking position points, and obtaining at least one clustering set; and controlling the floor tile screen to display target display information corresponding to a center point of the clustering set, wherein the center point is a virtual position point corresponding to the blocking information. The application solves the technical problem of inaccurate information display of the floor tile screen.

The utility model discloses a precision equipment transmission part, and relates to the technical field of transmission parts, the precision equipment transmission part comprises a buffer mechanism, both ends of the buffer mechanism are provided with universal joints, one end of each universal joint is fixedly provided with a mounting sleeve, the inner wall of the mounting sleeve is equidistantly and annularly provided with second limiting grooves, and the second limiting grooves are fixedly connected with the buffer mechanism. A second limiting block is slidably mounted in the second limiting groove, and a connecting rod is fixedly mounted outside the second limiting block. Through the arrangement of the first fixing mechanism, the mounting sleeve and the connecting rod can be conveniently mounted or dismounted, when parts are damaged, replacement is convenient, through the cooperation of a second limiting groove and a second limiting block, the mounting sleeve and the connecting rod are stably mounted, gaps are not prone to being generated, the service life is prolonged, and through the arrangement of the buffering mechanism, the service life is prolonged. The distance between the two universal joints can be conveniently adjusted according to the actual use condition, the adaptability is improved, and meanwhile a certain damping effect can be achieved.

The utility model provides a male head structure of quick coupling, include: valve body and valve core, the cavity inner wall of valve body is provided with snap spring groove, the snap spring groove is inlayed with snap spring, one side of snap spring is provided with locating block, the edge of locating block is provided with a plurality of everted, locating block is supported on snap spring through everted, one side of locating block is provided with return spring, locating block is used for supporting return spring, return spring is set on valve core, valve core moves in return spring telescopic direction in valve body, through setting a plurality of everted on the edge of locating block, can increase the virtual position space in valve body under the premise of not changing other structure of valve body, reduce flow resistance greatly improve fluid permeability, improve work efficiency.

The present application relates to the technical field of continuous casting and rolling production shear control, and specifically discloses a control method for controlling the weight of a billet based on non-fixed-length calculation of a bar, comprising the following steps: 1) billet tracking during hot charging and straight rolling, ① virtual position triggering, ② flow number transmission, and ③ consistent with cold billet signal tracking technology after the billet enters the rolling line; 2) a calculation method based on non-fixed-length of the bar; 3) the length remaining after the last fixed-length of the rolling line is cut by the fixed-length shear control system, and the billet flow number is uploaded to the industrial internet platform through the PLC control system, and the industrial internet platform issues the adjusted length of the billet; 4) data conversion between the continuous casting primary control system and the industrial internet platform; and 5) length adjustment control of the continuous casting billet. The present application realizes automatic adjustment of the length of the billet, thereby improving the weight accuracy of the billet, reducing or eliminating short-length materials during rolling, and improving the rolling yield.

A controller performs processing of superimposing and displaying on a CT image a virtual position reached by a distal end of an inner sleeve, based on predetermined distance information from an outer sleeve to the distal end of the inner sleeve in a case where the inner sleeve protrudes from the outer sleeve.

A real-time environmental model of a plurality of shared virtual environments (SVEs) is provides, each SVE including a plurality of virtual persons and a plurality of virtual gaming devices. First display data corresponding to a first SVE is transmitted to a first player device, including user display data to render a portion of the first SVE based on a virtual orientation of the first player device and a virtual location of the first player in the first SVE. Second display data corresponding to a second SVE is transmitted to a second player device, including user display data that causes a display device in the second player device to render a portion of the second SVE, including a virtual person associated with the first player, based on a virtual orientation of the second player device and a virtual location of the second player in the second SVE.

Provided is an information processing apparatus that includes a correction unit that renders audio data including position information of a sound object to a plurality of virtual speakers virtually arranged in a space, and an acquisition unit that acquires first position information regarding virtual positions of the virtual speakers in the space and second position information regarding positions of the virtual speakers in the space perceived by a user. The correction unit corrects the first position information of at least one of the plurality of virtual speakers on the basis of the second position information.

Method for operating a virtual reality system (10), comprising the steps: - Assigning a real walking area (22) to a virtual sub-area (40) which is arranged within a virtual walking area (28); - Detecting the position (30) of a person (20) positioned on the real walking area (22) who is wearing virtual reality glasses (12), using a detection device (16); - Assigning the captured viewpoint (30) of the person (20) to a virtual viewpoint (42) on the virtual sub-area (40); - Displaying a virtual object (26) from the virtual viewpoint (42) using the virtual reality glasses (12); - as soon as it has been detected that the position (30) of the person (20) lies on a given boundary surface (32, 34, 36, 38) of the real walking surface (22) and a given trigger criterion is met: Shifting of the virtual sub-area (40) relative to the virtual walking surface (28), whereby the virtual position (42) relative to the virtual sub-area (40) is kept unchanged during the shift; - Displaying the virtual object (26) using the virtual reality glasses (12) from the virtual viewpoint (42) after the virtual sub-area (40) has been moved relative to the virtual walk-through area (28), - characterized by the fact that - the shift occurs abruptly and the virtual reality glasses (12) are controlled for the shift in such a way that a virtual environment (24) is briefly hidden and then shown again after the abrupt shift has occurred.

This invention discloses a vehicle testing method and testing apparatus. Specifically, this method is applied to the field of intelligent vehicles. The method includes: acquiring a first real position of the vehicle and a second real position of a target part of the target object; acquiring a first virtual position corresponding to the first real position from a preset correspondence; determining a second virtual position of the target part based on the first virtual position and the second real position; displaying a target test image at a target display position corresponding to the second virtual position; and testing the vehicle based on the target test image. This invention solves the technical problem of low integration between virtual and real scenes.

This invention discloses a sensorless multi-stage tower erection mechanism and its control method. The method includes: establishing a state machine with multi-stage action interlocking and setting a virtual position counting variable; when each stage of the multi-stage telescopic boom extends, the counting variable changes along a first direction and the hydraulic drive unit switches its speed accordingly each time the interval proximity switch is triggered, until the approach switch is triggered when the boom reaches its final position and stops; when each stage of the multi-stage telescopic boom retracts, the counting variable changes along a second direction and the hydraulic drive unit switches its speed accordingly each time the interval proximity switch is triggered, until the approach switch is triggered when the boom reaches its final position and stops. This invention utilizes only inexpensive proximity switches in conjunction with dual trigger blocks and counting logic to achieve a servo-like "slow-fast-slow" S-shaped speed curve, solving the hydraulic shock problem caused by the lack of a displacement sensor, eliminating the risk of disordered multi-stage action sequence, and achieving high safety.

The utility model discloses a locking fastener and a logistics box, and relates to the technical field of logistics equipment. The locking fastener comprises a main body and a first elastic buckle, and the main body is used for being inserted into the clamping hole and is provided with a first end close to the lock hole and a second end away from the lock hole; the first elastic buckle is connected to the side, facing the first protruding part, of the body, and the first elastic buckle is sequentially provided with a first limiting part and a second limiting part from the first end to the second end. The first elastic buckle of the locking piece is designed to be provided with the first limiting part and the second limiting part, when the locking piece is located at the locking position, the first end is inserted into the lock hole, the second limiting part abuts against the first protruding part, locking between the box cover and the box body is achieved, and when the locking piece is located at the unlocking position, the first limiting part abuts against the first protruding part, and locking between the box cover and the box body is achieved. Therefore, the possibility that the lock catch piece moves towards the locking position is reduced, and the clearance between the lock catch piece and the clamping hole in the unlocking state is reduced or even eliminated.

The invention discloses an unmanned aerial vehicle position optimization method and system, a terminal and a storage medium, and relates to the technical field of unmanned aerial vehicles, and the method comprises the steps: obtaining the number of unmanned aerial vehicles corresponding to an unmanned aerial vehicle cluster, an activity space range, a minimum vehicle spacing, a synthetic beam main lobe target direction, and a working carrier frequency of airborne equipment of the unmanned aerial vehicles in the unmanned aerial vehicle cluster; an initial interval is determined according to the working carrier frequency, a set of virtual position points are determined according to the initial interval and a one-dimensional linear range defined by the activity space range, and the number of the virtual position points is larger than the number of the unmanned aerial vehicles; and optimizing the positions of the unmanned aerial vehicles in the unmanned aerial vehicle cluster through an iterative fast Fourier transform algorithm according to the number of the unmanned aerial vehicles, the minimum distance between the unmanned aerial vehicles, the target direction of the synthetic beam main lobe and the virtual position point, and obtaining a group of target position points corresponding to the unmanned aerial vehicle cluster until a preset iteration termination condition is met. In this way, a large number of random search processes are not involved, and the efficiency of unmanned aerial vehicle position optimization is improved.

Techniques are described for facilitating the coordination of an audio-video (AV) production using multiple actors in respective remote locations such that an integrated AV product can be produced by coordinating the activities of the multiple actors who are far apart. [Solution] A director (200) can indicate a desired position for a stage prop (206) within the virtual world, and can then transmit a beacon (302) toward a real-world location corresponding to the desired position to assist in the placement of the prop.

An audio personalisation method for generating a personalised Head-Related Transfer Function, HRTF, the method comprising the steps of: obtaining a base HRTF model comprising a first set of parameters; outputting a sound from a virtual sound source according to the base HRTF model, the virtual sound source having an intended virtual position; receiving at least one user indication corresponding to a user virtual position of the virtual sound source, wherein the intended virtual position is different to the user virtual position; updating the first set of parameters to a second set of parameters based on the at least one indication from the user so as to update the user virtual location; and generating a personalised HRTF model comprising the second set of parameters, wherein the difference between the intended virtual position and the user virtual position according to the personalised HRTF model is less than the difference between the intended virtual position and the user virtual position according to the base HRTF model.

The invention provides a dynamic convergence robot knitting track generation method and system, and relates to the technical field of composite material annular knitting and robot track planning, and the method comprises the steps: calculating an equivalent radius, a center line tangent vector and an equivalent half cone angle at each discrete point; establishing a dynamic convergence interval model; calculating an instantaneous convergence distance and an instantaneous traction speed of each discrete point; in the virtual coordinate system, constructing a virtual six-dimensional track containing a virtual position and a virtual attitude; acquiring real calibration coordinates of the center of the knitting machine guide ring in the real world; based on the real calibration coordinates and the initial position of the virtual six-dimensional track, calculating translation vectors and superposing the translation vectors to all virtual positions to determine a real position track; and combining and integrating the real position track, the posture in the virtual six-dimensional track and the instantaneous traction speed to generate a six-dimensional knitting track which can be executed by the robot.

Described herein are systems, methods, and techniques for spatially-aware displays for computer-assisted interventions. A Fixed View Frustum technique renders computer images on the display using a perspective based on a virtual camera having a field-of-view facing the display and automatically updates the virtual position of the virtual camera in response to adjusting the pose of the display. A Dynamic Mirror View Frustum technique renders computer images on the display using a perspective based on a field-of-view of a virtual camera that has a virtual position behind the display device. The virtual position of the virtual camera is dynamically updated in response to movement of a user's viewpoint located in front of the display device. Slice visualization techniques are also described herein for use with the Fixed View Frustum and Dynamic Mirror View Frustum techniques.

An advanced driver assistance system, method and vehicle for assisting a driver of a vehicle is provided. The system includes a sensor unit, a processing unit and a display unit. The sensor unit is configured to sense an environment of the vehicle. The processing unit is configured to determine at least one feature of the environment based on the sensing output. The processing unit is configured to determine a risk zone for the feature for a current time by estimating a respective risk with respect to the feature at each of two or more virtual positions of the vehicle based on at least one parameter of the vehicle at the current time, and forming a risk zone based on the two or more risks. The display unit is configured to display the environment of the vehicle with the feature and the risk zone of the feature.

To provide a state diagnostic device which enables abnormality diagnosis with high accuracy and suppresses cost.SOLUTION: A state diagnostic device includes: an estimation unit including an estimation model to estimate signal information of a virtual sensor that virtually exists at a virtual position in a target object; and a state diagnosis unit for diagnosing presence / absence of abnormality or the like of the target object on the basis of the estimated signal information. The estimation unit estimates, by using the estimation model, signal information of a measurement target at a target portion, which is information assumed to be measured by the virtual sensor at the virtual position on the basis of signal information including outputs of the one or more external sensors for measuring the measurement target attached to the target object, wherein the estimation model is a model including a relationship between signal information of both sensors based on the signal information including the outputs of the external sensors attached to the target object and the signal information of the measurement target acquired from an actual sensor installed at a position corresponding to the virtual position of the target portion of the target object.SELECTED DRAWING: Figure 1

This invention discloses a method and system for tracking and controlling the trajectory of an unmanned tracked vehicle on a slope based on virtual control points, belonging to the field of tracked vehicle trajectory tracking and control. First, the gravitational yaw moment caused by the vehicle's center of gravity offset is calculated, and a discrete prediction model of slope dynamics is constructed. Second, virtual control points are generated, and the influence of lateral slippage is corrected through an anti-slip compensation term. Finally, the tracked vehicle's attitude information is acquired in real time, and based on the discrete prediction model of slope dynamics, the predicted value of the state vector is obtained. The predicted coordinates of the virtual control points are calculated, and the optimal control quantity is solved. This invention innovatively proposes a dynamic migration method for "virtual control points" based on center of gravity offset and slope parameters. This method migrates the control reference point from the geometric center to a virtual position that can balance the gravitational moment, effectively solving the influence of yaw moment on the tracked vehicle's control attitude, suppressing the slippage influence caused by the lateral component of gravity, and effectively solving the instability of tracked vehicles in slope motion control.

The application relates to a method and device for video conference interaction, computer equipment, a storage medium and a computer program product. The method relates to online virtual video conference technology, and comprises the following steps: in response to a trigger operation of joining a video conference among a plurality of terminals, a virtual picture-in-picture picture of the video conference is displayed, and a virtual scene of the virtual picture-in-picture picture comprises a plurality of virtual positions for accommodating conference members; in at least two virtual positions of the virtual scene, adaptive portraits corresponding to human images in real-time pictures of the conference members collected by at least two terminals in the plurality of terminals are displayed; wherein the size of each adaptive portrait displayed in the at least two virtual positions matches the size of the position area where the corresponding virtual position is located. The method can improve the interaction efficiency of the video conference.