10 results about "Bilateral synchronization" patented technology

The invention discloses a differential protection function test method and system based on remote data synchronization, and relates to the technical field of power system relay protection tests.The method comprises the steps that host and slave test devices are deployed remotely, and communication is established through standby optical fibers; the host test device responds to the configuration parameters to generate two-dimensional test data, synchronizes the two-dimensional test data to the slave test device and calculates channel delay; based on the FPGA logic architecture and channel delay, the two test devices synchronously output test data to the differential protection device; the system comprises a remote testing device, a differential protection device and a standby optical fiber link, the testing device is integrated with a plurality of functional units such as an FPGA, the method supports fault-tolerant recovery, multi-scene expansion and result analysis, the remote synchronous testing problem is solved, the testing accuracy and comprehensiveness are improved, and the testing efficiency is improved. The method is suitable for substation differential protection function verification.

The present application belongs to the technical field of supply chain collaborative management, and discloses a method and system for bi-directional synchronization and modification of logistics and cargo information. Before the supplier completes the delivery, the method allows the supplier to modify or delete the bound logistics information; the operation instruction synchronously triggers the state rollback of the bound cargo information, so that the cargo information returns to the state of waiting for delivery and is unbound; all changes are ensured to be complete and persistent through atomic transactions; finally, based on the transaction success signal, the system pushes the differentiated synchronization information to the related demand side in real time. The system corresponds to the instruction receiving, collaborative processing, transaction management and real-time synchronization modules. The present application solves the problem of data inconsistency and view asynchronization caused by information modification under multi-party collaboration, realizes flexible adjustment of logistics information, automatic recovery of business state and real-time consistency of multi-party view, and significantly improves the reliability and efficiency of supply chain collaboration.

This application relates to a method and system for ensuring data consistency between business systems based on bidirectional synchronization, belonging to the field of business data processing technology. The method includes: receiving incremental data events from at least two business systems and generating a vector label for each incremental data event; performing conflict detection on concurrently processed incremental data events based on the vector labels and outputting a conflict type identifier; selecting a corresponding synchronization channel based on the conflict type identifier and current system operating status parameters; transmitting the incremental data events to the target business system through the selected synchronization channel and monitoring the execution status, triggering a compensation transaction when execution fails; receiving response information returned by the target business system and updating the inter-system data flow topology based on the response information; detecting the existence of data loops based on the data flow topology, and performing loop blocking operations when a data loop is detected. This application can improve the collaborative efficiency and stability of multiple business systems.

The application discloses a kind of loop trolley double-side cross coupling synchronous deviation correction control method and system, it is related to industrial production line control technical field.The method respectively acquires the operating state parameter of left side execution unit and right side execution unit of loop trolley, constructs left side tracking error, right side tracking error and the synchronization deviation amount of bilateral synchronization relationship;With running direction, track section, bilateral response sequence, synchronization deviation expansion trend and abnormal contact characteristic information, construct loop trolley special disturbance attribution amount;Based on synchronization deviation amount and special disturbance attribution amount, generate left side correction distribution and right side correction distribution, realize difference cross coupling correction control by anti-oscillation state machine.The system includes bilateral state acquisition, synchronization deviation construction, special disturbance attribution, correction distribution, state machine control and execution control module.The scheme can inhibit loop trolley bilateral synchronization deviation amplification and correction oscillation, improve synchronization correction stability and operating reliability.

The invention discloses a vehicle-mounted multi-screen media synchronization control method based on a MediaSession framework, and the synchronization control method comprises the steps: creating a global media session manager at a system layer as a control center, and enabling each screen media application to register a MediaSession instance of the screen media application to the manager. The manager receives a control instruction from a multivariate input source and intelligently distributes the control instruction to a specific target instance according to a predefined routing policy instead of simple broadcasting, so that the problem of control logic dispersion is solved. Meanwhile, the manager aggregates the state changes reported by all the instances, generates a global state view and broadcasts and synchronizes the global state view, so that all the applications can update a local interface in a unified manner according to the global state view, and the consistency of the cross-screen display state is ensured. According to the synchronous control method, on the premise of being compatible with a standard framework, the technical problems of state asynchronization and control conflict in the vehicle-mounted multi-screen media system are effectively solved through centralized management and a two-way synchronization mechanism.

A process that exhibits: Writing data synchronously with a first clock signal of a first clock domain into an entry of a dual-port memory array; Generating an increment signal in the first clock domain; Determine that the increment signal changes near an edge of a second clock signal, where the second clock signal is a pausable clock signal; Delaying the next edge of the second clock signal of the second clock domain, wherein the next edge of the second clock signal is delayed until the metastability of the increment signal is resolved; and Transferring the increment signal to the second clock domain.

The application discloses a method and device for synchronizing data between dual-active systems. The application obtains a first task and a second task from a first system and a second system of the dual-active systems respectively, and determines a current target synchronization operation task based on time series, operation source marks and data primary keys, and a target operation address and an operation object of the target synchronization operation task, thereby avoiding execution confusion of the dual-active systems in a synchronization process, and enabling the target operation address to explicitly indicate whether the target synchronization operation task is one-way synchronization execution or two-way synchronization execution, so that data between the dual-active systems can be one-way synchronized and two-way synchronized, and real-time performance of the current target synchronization operation task is ensured.

This invention discloses a mobile-first, cross-platform collaborative, lightweight accounting and bookkeeping system and method, belonging to the field of financial data processing and cross-platform collaboration technology. The system includes a mobile input terminal, a PC-based accounting management terminal, and a cloud-based collaborative service platform. The mobile terminal integrates simple document input, invoice image uploading, offline caching storage, and mobile approval modules; the PC terminal provides document review, intelligent voucher generation, ledger query, period-end processing, and hierarchical permission control; the cloud-based platform is equipped with a real-time bidirectional synchronization engine, a data conflict avoidance unit, and an accounting subject rule base. This invention resolves cross-platform data conflicts through an edit-locking mechanism, achieves offline operation capabilities through offline caching and incremental synchronization, and automatically generates compliant accounting vouchers from business documents, realizing mobile-first, real-time cross-platform collaboration, and automated accounting processing, significantly reducing the threshold and cost of enterprise bookkeeping.

A digital twin automated parking decision-making and planning and bilateral synchronous control method includes: establishing a vehicle digital twin automated parking system for unstructured parking scenarios; constructing a parking lot environment occupancy grid and signed distance field model; generating exhaustive candidate trajectories for all available parking spaces using a hybrid A* algorithm; performing piecewise smoothing optimization of the candidate trajectories using quadratic programming constraints; verifying the dynamic executability of the optimized candidate trajectories based on the CARLA parallel inference engine; constructing a multi-dimensional trajectory evaluation function and selecting the globally optimal parking reference trajectory; establishing a bilateral synchronization error model between the virtual vehicle and the physical vehicle; designing a hybrid A*-guided digital twin MPPI controller to generate virtual vehicle control commands and physical vehicle feedforward control quantities; and designing a physical vehicle feedback controller to enable the physical vehicle to track the globally optimal parking reference trajectory and achieve virtual-real synchronization.

The invention relates to a robustness clock synchronization parameter estimation method for an unmanned aerial vehicle cluster network, and belongs to the technical field of unmanned aerial vehicles. Obtaining sending and receiving timestamp information in a multi-round synchronization process through bidirectional synchronization message interaction between the master node unmanned aerial vehicle and the slave node unmanned aerial vehicle; based on timestamp information, aiming at the problem of synchronization precision reduction caused by multi-type random time delay distribution in an unmanned aerial vehicle cluster network scene, constructing a master-slave node clock synchronization model containing random time delay influence; performing joint estimation on the clock frequency offset and the clock phase offset of the slave node relative to the master node by adopting an optimal invariant estimation method; and correcting or compensating a local clock of the slave node according to an estimation result to realize time synchronization of each node in the unmanned aerial vehicle cluster network. The robustness and stability of time synchronization are improved in a highly dynamic and random time delay uncertain unmanned aerial vehicle cluster network environment, and the high-precision time synchronization requirements of multi-unmanned aerial vehicle cooperative sensing, formation control and task scheduling are met.