2results about How to "Efficient synchronization" patented technology

This application discloses a servo synchronization method, apparatus, mechanism, unit, system, medium, and product. The servo synchronization method is applied to a servo mechanism and includes: receiving model parameters of a virtual spindle model from a control unit; running the virtual spindle model based on a local synchronization clock according to the model parameters; and broadcasting a correction event to other servo mechanisms when the following error between the actual position of the local axis and the theoretical position of the virtual spindle model meets a trigger condition, so that the servo mechanisms that hear the correction event can collaboratively correct the position of the corresponding axis. In this technical solution, the control unit only needs to send model parameters and does not need to continuously control each servo mechanism. Each servo mechanism can run the same virtual spindle model locally based on the model parameters. When necessary, it can broadcast correction events to enable other servo mechanisms to perform collaborative correction, transforming periodic communication into event-triggered communication, reducing communication overhead, and achieving high-precision and efficient synchronization.

The application discloses a database bidirectional data synchronization method, an electronic device and a computer program product, and belongs to the technical field of databases. The method comprises the following steps: generating target hash data based on change data of a first database, and storing the target hash data into a target sending thread of the first database; the target sending thread is any one of a plurality of sending threads in the first database; the target sending thread sends the target hash data to a target receiving thread of a second database; the target receiving thread is a receiving thread corresponding to the target sending thread in a plurality of receiving threads in the second database; the target receiving thread traverses each sending thread in the second database based on the target hash data, checks whether there is a same hash value as the target hash data, and obtains a check result; and performing data synchronization on the second database based on the change data of the first database according to the check result.