4results about How to "Data synchronization" patented technology

The application discloses a panoramic data acquisition and master station synchronization method of a relay protection and stability device, relates to the technical field of power communication monitoring, and aims to solve the problem of master station synchronization distortion; the application constructs a cooperative link of displacement checking, configuration analysis, aggregated configuration, communication processing and information processing, realizes unified acquisition and master station synchronization of the state of a pressing plate, the state of a loop and device message information of the relay protection and stability device, checks the mechanical action of the pressing plate and the electrical response of the loop jointly, generates a panoramic data directory in combination with object master keys, relation indexes and version indexes, and executes field mapping, time normalization and difference supplement transmission, so that the data acquisition accuracy, synchronization integrity and operation reliability are improved.

The application provides a high-precision software timing sending system time mark and data synchronization method. Under the condition that timing cannot be avoided and time intervals are close to the sending rule, a timing design strategy is used to take the relatively independent post-sending equipment in timing management as a base point, organize all measured data in the same communication cycle, and mark the method of the related time mark with the time mark of the central control equipment as a reference, so that the time mark and the data are completely synchronized.

The application discloses a data synchronization method between database clusters, comprising the following steps: binding a floating address of a database cluster to a database master node in real time; starting a synchronization operation and maintenance process, a change capture process and a synchronization storage process on a node with the floating address in the database cluster, and closing the processes on a node without the floating address; parsing an archive log according to a last parsed archive log name and a position of the archive log, obtaining database change data and storing the change data in the database; monitoring changes of the change data in the database in real time, and sending the change data to a destination; starting a data packet receiving thread at the destination to complete data synchronization between a source and the destination; and completing data synchronization node and data synchronization strategy configuration through a data synchronization operation and maintenance monitoring module, and realizing data synchronization state monitoring, synchronization topology structure display and synchronization transaction watching.