63 results about "Virtual time" patented technology

The invention relates to the technical field of intelligent control, in particular to a multi-mode-based intelligent home control method and system, and the method comprises the following steps: S1, synchronously collecting a voice stream and an action video stream of a user, and respectively extracting a semantic anchor point of a voice instruction and a spatial anchor point of an action track; s2, constructing a virtual time axis, mapping the semantic anchor points and the spatial anchor points to a unified space-time coordinate system, and performing anchor point deviation correction on a mapping result based on an environment semantic field to generate an alignment instruction set; and S3, performing intention fusion on the alignment instruction set according to the spatial topological relation of the equipment, generating an equipment control instruction, and triggering execution. According to the method, the fault tolerance and execution rationality of fuzzy instructions or wrong finger behaviors are improved, the method is particularly suitable for family scenes with dense multiple devices and frequent environment dynamic changes, and the practicability and the intelligent level of the system are remarkably improved.

The invention relates to the technical field of constructional engineering informatization management, and discloses a constructional engineering full-period collaborative management and risk prediction system, which comprises a resource token definition module, a resource token generation module, a resource management module and a risk prediction module, and is characterized in that physical elements are mapped into discrete resource tokens configured with unit time delay charge rates; the process transactional modeling module is used for packaging the process into an atomic transaction unit containing a request and a release instruction; the discrete event rehearsal simulation engine executes circulation in the virtual time axis and records the hanging duration; the deadlock detection module monitors the occupancy topology in real time to identify a loop waiting closed loop; according to the dynamic priority arbitration logic, an accumulated lag weight value is calculated according to the product of the rate and the duration, resources are forcibly allocated accordingly to eliminate deadlock, the dynamic arbitration algorithm based on the time value gradient is constructed, the physical lag cost is converted into the calculation weight, and the capacity of the system for automatically converging to the optimal solution under complex constraints is improved.

The invention discloses a power grid operation delay control method under an emergency situation, and relates to the technical field of power grid control and protection. Comprising the following steps: S1, carrying out time compensation on a PMU device, inserting an SCADA virtual timestamp, and carrying out synchronous time compensation; s2, performing data processing in different working condition modes according to the working condition modes and synchronization time compensation; s3, determining a total time error needing to be compensated according to the working condition mode, the equipment response time and the compensation coefficient, and determining corrected instruction issuing time; and S4, combining the corrected instruction issuing time with the predicted compensation time to determine the final instruction issuing time. According to the method, the local clock error of the PMU is compensated through GPS time, the SCADA virtual timestamps are inserted to realize time axis alignment of the multi-source data, and meanwhile, the preset number of virtual timestamps are inserted between SCADA sampling points, so that the time resolution difference between the SCADA sampling points and the PMU data is reduced, and the synchronization error is reduced.

The invention discloses a task scheduling method and device, equipment, a storage medium and a product, and relates to the technical field of task scheduling, and the method comprises the steps: obtaining the virtual time and task request time of a to-be-scheduled task during task scheduling; adding to-be-scheduled tasks into an initial queue in sequence based on the task request time; obtaining a traversal interval and a target fence threshold value dynamically adjusted according to the current load of the system; traversing the initial queue according to the traversing interval, and determining a target to-be-scheduled task from the initial queue according to the target fence threshold and the virtual time; and removing the target to-be-scheduled task from the initial queue, adding the target to-be-scheduled task into the working queue, and completing task scheduling according to the working queue. The task scheduling strategy is dynamically adjusted according to the system load, it is ensured that the system is not overloaded during high load, the stability and reliability of the system are improved, the scheduling task with the high priority is determined according to the virtual time, the task waiting time is shortened, and the scheduling efficiency is improved.

Examples described herein provide a computer-implemented method that includes receiving a plurality of profiles corresponding to at least one of a plurality of virtual machines. Each of the plurality of profiles defines a validity period and an allowable variation of time. The method further includes determining, based at least in part on the validity period, a subset of the plurality of profiles that are active. The method further includes calculating a uniform distribution for virtual clocks of each of the subset of the plurality of virtual machines and determining a desired offset. The method further includes adjusting a virtual clock frequency of a virtual clock based at least in part on the desired offset and the allowable variation of time. The adjusting causes a difference between a real time-of-day clock and a virtual time-of-day clock of the at least one of the virtual clocks to increase.

Integrated circuit devices, methods, and circuitry for a virtual time of day (ToD) engine to generate timestamps by using offsets associated with PTP clock domains. An integrated circuit device may include a number of ports configurable to communicate using timestamps corresponding to a number of Precision Time Protocol (PTP) clock domains. The integrated circuit device may also include a host data processing system to determine an offset for a first PTP clock domain of the plurality of PTP clock domains by calculating a difference between a first ToD provided by a clock source on the integrated circuit and one or more ToDs associated with the first PTP clock domain. The integrated circuit may further include a virtual ToD engine to generate a timestamp by adding the offset for the first PTP clock domain to a second ToD from the clock source and provide the timestamp to a port.

Systems and methods are disclosed herein that relate to Time Sensitive Communication (TSC) to Fifth Generation (5G) Quality of Service (QoS) mapping and associated QoS binding. In one embodiment, a method for QoS mapping in a 5G System (5GS) for a virtual Time Sensitive Networking (TSN) bridge comprises, at a first network function, obtaining information from a TSN Application Function (AF) comprising baseline TSC QoS parameters and one or more additional parameters comprising either or both of: (a) one or more additional TSC QoS attributes and (b) one or more additional traffic attributes. The method further comprises, at the first network function, generating one or more Policy and Charging Control (PCC) rules based on the obtained information and providing the one or more PCC rules to a second network function. The method further comprises, at the second network function, performing QoS binding based on the one or more PCC rules.

A collaborative session (e.g., a virtual time capsule) in which access to a collaborative object and added virtual content is selectively provided to participants / users. In one example of the collaborative session, authentication of the collaborative object is performed by all of the users to complete the collaborative session. Each user authenticates the collaborative object, such as using a stamping gesture on a user interface of a client device or in an augmented reality session. User specific data is recorded with the stamping gesture to authenticate the collaborative object and the associated virtual content. In an example, user specific data may include device information, participant profile information, or biometric signal information. Biometric signal information, such as a fingerprint from a mobile device or a heart rate received from a connected smart device can be used to provide an authenticating signature to the seal.

A method includes receiving a plurality of operations in a sequence recipe. The plurality of operations is associated with processing a plurality of substrates in a substrate processing system. The method further includes identifying a plurality of completion times corresponding to the plurality of operations. Each completion time of the plurality of completion times corresponds to completion of a respective operation of the plurality of operations. The method further includes simulating the plurality of operations by setting a virtual timeline for each of the plurality of completion times to generate a schedule for the sequence recipe. The method further includes causing the plurality of substrates to be processed or performing a corrective action based on the schedule.

The application provides a virtual power plant dynamic feasible region solving method and system based on coupling constraint decoupling, belongs to the technical field of power plant resource allocation management, establishes a virtual power plant model considering distributed energy and flexible load resources, and determines a virtual power plant feasible region solving model based on a vertex search method; through Lyapunov optimization, virtual queues of energy storage, heating ventilation air conditioning and electric vehicles and other flexible loads are respectively established, and the time coupling constraint of the flexible load is decoupled into a virtual queue stability problem; a virtual time queue is constructed to integrate the decoupled optimization problem into the virtual power plant dynamic feasible region solving of day-ahead and day-ahead, so that the day-ahead and day-ahead feasible region solving algorithm is obtained. Based on the Lyapunov optimization theory, the time coupling constraint is decoupled, a weight coefficient is introduced, and a mathematical model taking the vertex search and queue stability as targets is provided, and finally the virtual power plant dynamic feasible region solving of day-ahead and day-ahead is realized.

A method and system for the post-adjustment (i.e., offline) of event timestamps to implement virtual time synchronization amongst detection node clocks. In existing methodologies with the goal of clock synchronization, clocks (and timestamps generated therefrom) are disciplined or adjusted at the recordation time of the events on a detection node (e.g., a switch / router, an Internet-of-Things (IoT) device, a wireless sensor, etc.). However, there is no particular reason for these clocks or timestamps to be accurate during the recordation time, but rather, should be accurate at their use or interpretation time. Further, through these recordation time adjustments, clock drifts and timing errors may be gradually introduced, leading to runaway inaccuracies. The disclosed method and system intentionally avoids the disciplining of clocks at event recordation times on the detection node and, instead, adjusts timestamps during interpretation times, to overcome the aforementioned issues.

Certain aspects of the present disclosure provide techniques for a virtual time division duplex (TDD) pattern. An example method wireless communications by an apparatus includes obtaining an indication of one or more TDD transmission patterns, wherein the one or more TDD transmission patterns indicate that a first downlink slot is followed in time by one or more first uplink slots, and that the one or more first uplink slots are followed in time by a time period, and wherein the one or more TDD transmission patterns further indicate a duration of a propagation delay for communications with a network entity based at least in part on the time period; and communicating with the network entity based at least in part on the one or more TDD transmission patterns and the duration of the propagation delay.

A collaborative session (e.g., a virtual time capsule) in which access to a collaborative object and added virtual content is selectively provided to participants / users. In one example of the collaborative session, authentication of the collaborative object is performed by all of the users to complete the collaborative session. Each user authenticates the collaborative object, such as using a stamping gesture on a user interface of a client device or in an augmented reality session. User specific data is recorded with the stamping gesture to authenticate the collaborative object and the associated virtual content. In an example, user specific data may include device information, participant profile information, or biometric signal information. Biometric signal information, such as a fingerprint from a mobile device or a heart rate received from a connected smart device can be used to provide an authenticating signature to the seal.

The present application relates to the field of remote microsurgery robot control, and specifically provides a trajectory smoothing control method and device based on network time delay and electronic equipment. The method comprises: calculating the time interval of the current time node and the historical time node reaching the remote microsurgery robot; determining the target data packet quantity in the slave end buffer according to the time interval; in the case that the current data packet quantity in the slave end buffer is greater than 0 and the time interval is less than or equal to the preset time interval, determining the time scaling factor according to the difference between the current data packet quantity and the target data packet quantity in the slave end buffer, thereby calculating the virtual time step, and then determining the instruction pose of the current control cycle period of the slave end through interpolation; the instruction pose is used to control the moving trajectory of the slave end in the current control cycle period. The technical scheme provided by the present application can improve the smoothness of remote microsurgery robot control in network jitter.

The invention relates to the technical field of collaborative scheduling management, in particular to a tide and weather linkage scheduling method for port operation collaboration, which comprises the following steps of: setting a benchmark, creating a virtual time axis, the initial state of the virtual time axis being a standard uniform elapsed time axis; marking an effective operation time window on the virtual time axis according to forecast tide data; performing correction according to the forecast meteorological data to generate a deformation time axis; calculating a starting time point and duration of each operation link on a deformation time axis, and reversely deducing a collaborative operation instruction sequence to form a final scheduling scheme; and dynamically adjusting the deformation time axis, and triggering rolling optimization of the final scheduling scheme. According to the method, it is guaranteed that the scheduling scheme is always unfolded around the core target of safe departure, time consumption of non-critical paths is reduced to the maximum extent, and the scheduling failure problem that in a traditional method, scheduling is completed, but departure fails is avoided.

The present disclosure relates to the technical field of communications, and provides an information processing method, an apparatus, a device, a readable storage medium, and a program product, so as to improve inventory efficiency. The method comprises: acquiring first information, wherein the first information comprises one or more of first sub-information, second sub-information, and third sub-information; receiving a first message sent by a network device, and decrementing a time slot counter value according to the first message to obtain a value of a current time slot count; and sending a response sequence to the network device according to the value of the current time slot count and the first information, wherein the first sub-information is used for indicating a length of a virtual time slot response window, the second sub-information is used for indicating a number of selectable slots or a number of sub-groups, and the third sub-information is used for indicating a length.

A collaboration session (e.g., a virtual time capsule) in which access to a collaboration target and added virtual content is selectively provided to a participant / user. In one example of a collaborative session, a participant (host) creates a new session and invites the participant to join. Session creators (i.e., hosts) and other approved participants may access the content of the session (e.g., they may be recorded using applications such as shot cloud features; lens cloud features are available from the Snap Company of the Sanmeniaca California). A timestamp is associated with each received virtual content, and the root provides the user with a time shift of the collaboration target according to the timestamp.

The application discloses a large-scale tubular pump water pressure oscillation amplitude prediction method based on a virtual target point matrix, and belongs to the technical field of large-scale low-lift water transfer projects. The method is as follows: the related characteristic parameters of a large-scale tubular pump device are determined, and the characteristic time sequence coordinates of a guide vane inlet section observed from the guide vane inlet direction are defined; the virtual time sequence target point matrix, the virtual wheel disc target point matrix and the radial extension function are calculated based on the characteristic parameters and the characteristic coordinates of the concerned points; and the water pressure oscillation amplitude of the guide vane inlet is calculated based on the obtained radial extension function. For a given large-scale tubular pump device, the water pressure oscillation amplitude at any concerned position of the guide vane inlet section can be quickly and accurately estimated by the application, which is simple, efficient and solves the problem that the existing method cannot accurately predict the water pressure oscillation amplitude of a large-scale tubular pump device under large-scale and multi-time sequence conditions, thereby providing reliable technical support for the quantitative evaluation of the hydraulic stability of the large-scale tubular pump device.

Time of day (ToD) registers provide respective virtual ToDs corresponding to the occurrence of edges of input clock signals being supplied to an integrated circuit. The integrated circuit generates a heartbeat clock signal having a frequency higher than a SYNC signal and time stamps the heartbeat clock signal to generate heartbeat time stamps. The heartbeat time stamps are used along with the time stamps of the input clock signals to determine the time of day corresponding to occurrences of edges of the input clock signals.

The invention discloses a multi-time-scale adaptive step length real-time simulation method and system based on event driving, which are used for solving the technical problem of low overall simulation efficiency caused by frequent idle waiting of a large amount of redundant calculation and chip resources in the existing real-time simulation technology. The method comprises the following steps: after acquiring a model configuration file, an initial state parameter and a plurality of external excitation signals, outputting initial local time and a ready state of each chip by a plurality of encodable chips according to the model configuration file, the initial state parameter and the external excitation signals; based on neighbor time information broadcasted by the virtual time synchronizer, an external excitation event, a ready state of each chip and initial local time, generating a current event priority queue, prediction characteristics of each chip and a current safety time window; the step length predictor generates a final actual step length according to the prediction features and the current safety time window; and performing simulation by combining the final actual step length, the initial local time of each chip, the queue head event time and the current global minimum time, and outputting a target simulation report.

The application relates to the technical field of building engineering information management, and discloses a building engineering whole-cycle collaborative management and risk prediction system, which comprises a resource token definition module, a process transaction modeling module, a discrete event pre-performance simulation engine and a deadlock detection module. The resource token definition module maps physical elements into discrete resource tokens which are configured with unit time lag rate. The process transaction modeling module encapsulates a process into an atomic transaction unit containing request and release instructions. The discrete event pre-performance simulation engine executes flow transfer on a virtual time axis and records the suspension duration. The deadlock detection module monitors the occupation topology in real time to identify a cyclic waiting closed loop. A dynamic priority arbitration logic calculates a cumulative lag weight value according to the product of the rate and the duration, and forcibly allocates resources according to the cumulative lag weight value to eliminate the deadlock. The application converts physical lag cost into a calculation weight by constructing a dynamic arbitration algorithm based on a time value gradient, and improves the ability of the system to automatically converge to an optimal solution under complex constraints.

The present invention discloses an automatic inspection method for intelligent manufacturing, which relates to the technical field of equipment inspection and solves the problem that when data is inspected and recorded in a top-down manner and some nodes of some equipment fail to generate data in time, the system will be left waiting, thereby prolonging the inspection time. The present invention prioritizes confirming the inspection record collection node, and then analyzes whether the corresponding node is a normal point or an abnormal point, and then analyzes the point data of the abnormal point to confirm the interval time difference between the past time. Subsequently, the virtual time point corresponding to the abnormal point is obtained, and then the specific time point of the virtual time point is used to construct a sorting table of the abnormal point, and then the overall inspection record collection table is generated by combining with the normal point. The inspection system collects the inspection data according to the inspection record collection table, changes the original data inspection collection method, improves the automatic inspection efficiency, and fully reduces the automatic inspection time.

A collaborative session (e.g., a virtual time capsule) in which participants / users are selectively provided with access to collaborative objects and added virtual content. In a collaboration session example, a user interacts with a collaboration object using a hand gesture. Virtual content associated with the collaborating object may be accessed with an open hand gesture, and the virtual content may be hidden with a close hand gesture. The hand gesture is detected by a camera of a client device used by a user. The collaborative object may be moved and manipulated using a pointing gesture, where the location of the collaborative object may be confirmed as a new location by tagging a user's client device.

The invention provides an automatic measurement type sizing machine working parameter transmission method and system, and relates to the technical field of industrial automation, and the method comprises the steps: generating a physical timestamp and a virtual timestamp for a working parameter, and calculating the virtual timestamp according to the accumulated operation time delay of yarn and the section position; identifying the cross-section parameters of the same virtual timestamp as associated parameters acting on the same section of yarn; when detecting that the parameter is abnormal, predicting the moment when the yarn reaches the downstream target section based on the virtual timestamp, and improving the transmission priority in advance; and reversely correcting the yarn running speed by using the transmission delay difference of the data frames with the same virtual timestamp so as to realize parameter transmission optimization.

The invention discloses a high-performance time sequence parallel simulation system and method based on a time acceleration and synchronous control mechanism, and belongs to the technical field of high-performance parallel calculation. The system comprises a timing trigger module, a time mapping engine module, a task generation and distribution module, a parallel processing module, a synchronous blocking module, a state aggregation module and a visual output module. By establishing a double-layer time system of physical time takt-simulation time window, a time mapping engine dynamically calculates the number of virtual time steps needing to be propelled according to acceleration multiplied speed, and acceleration mapping of physical time and simulation time is achieved. The parallel processing module executes tasks in a thread pool with a fixed size, and the synchronous blocking module performs unified time sequence control on execution of each thread through a counting synchronizer, so that state consistency and calculation reproducibility under a high-speed operation condition are ensured. And the state aggregation module is used for integrating the synchronized local calculation results and updating the global system state. According to the method, high-speed simulation and high-fidelity playback of large-scale time-dependent data are realized on the premise of not damaging sequential logic, and the modeling verification efficiency and stability of a complex system can be remarkably improved.

The present invention proposes an intelligent vehicle machine and a control method thereof for preventing brutal driving, which relate to the field of motor vehicle driving safety technology. A virtual dynamic image is generated by acquiring first information located at a preset distance in front of or behind a vehicle, a non-drivable interval is determined according to the virtual dynamic image, and second information of a driver manipulating the vehicle is acquired through the intervention of an auxiliary brake. A first virtual acceleration and a virtual driving direction are generated according to the second information. A first virtual time and a first virtual braking time are generated according to the first virtual acceleration and the preset distance. When the virtual driving direction is consistent with the direction of the non-drivable interval and the first virtual time is greater than the first virtual braking time, if the accelerator is not released or the brake is stepped on within the response time, the auxiliary brake is started for braking and the accelerator is disconnected at the same time. In this way, the driver's driving behavior can be predicted and intervened to prevent the driver from engaging in brutal driving behavior, thereby ensuring safe driving of the vehicle.

The application belongs to the technical field of parallel discrete event simulation and network system simulation, and discloses an intelligent hybrid parallel synchronization method for large-scale distributed simulation, which collects key operation indexes such as neighborhood timestamp lower bound, next event time, round-trip delay quantile value, cross-partition event output rate and virtual time jitter, evaluates system load and communication state in real time, judges the best time to enter optimism or rollback conservation based on the collected key operation indexes, prevents frequent switching by using hysteresis mechanism and minimum residence time, sets time-bounded gates at the mode switching boundary, only allows events within the safe range to propagate, temporarily stores events exceeding the range and sends them in batches when the conditions are met, and thus guarantees causal consistency. The application takes into account real-time performance and robustness, shortens the global empty waiting time, facilitates real-time online acceleration and stable submission in a simulation platform and a message passing interface, and has both performance and interpretability.

The application discloses a toy remote interaction delay alignment method and system based on a software development kit, relates to the technical field of remote interaction control, and comprises the following steps: establishing an inter-user media session among a plurality of control terminals and establishing a control session between the control terminal and the toy; the software development kit collects a control instruction sending timestamp and a toy execution timestamp to calculate a control link delay, and acquires a media link delay of the inter-user media session; a compensation amount is calculated according to a delay difference value, a virtual time axis and a control instruction buffer queue are established, and the sending is dispatched according to the generation time plus the compensation amount; in a multi-user scenario, a collaborative time track containing the expected effective time of each control behavior is constructed, and a recommended collaborative control time window is given. The fine-grained alignment of the control link and the media link is realized, the delay fluctuation is inhibited, and the synchronicity and the sense of immersion of the multi-user remote interaction toy are enhanced.

The invention relates to a task execution playback method and device, computer equipment, a storage medium and a computer program product. The method comprises the steps of obtaining a current virtual time point based on a query task playback instruction, wherein playback page data corresponding to the query task playback instruction comprises task execution data corresponding to a query task; determining a current playback node and a played-back node based on the current virtual time point and a playback virtual time range of each task node corresponding to the query task in the task execution data, and calculating a node execution result playback progress corresponding to the current playback node; and displaying the played-back node and the current playback node in a playback page corresponding to the playback page data, and synchronously displaying playback content in the current execution result, the playback content being determined based on the playback progress of the node execution result and the current execution result corresponding to the current playback node in the task execution data. By adopting the method, the display accuracy of the query task can be improved.

Time of day (ToD) registers provide respective virtual ToDs corresponding to the occurrence of edges of input clock signals being supplied to an integrated circuit. The integrated circuit generates a heartbeat clock signal having a frequency higher than a SYNC signal and time stamps the heartbeat clock signal to generate heartbeat time stamps. The heartbeat time stamps are used along with the time stamps of the input clock signals to determine the time of day corresponding to occurrences of edges of the input clock signals.