30results about How to "Unable to sync" patented technology

The invention discloses a synchronizing system compatible with various clocks and a synchronizing method thereof. The synchronizing system comprises an external clock matching and amplifying unit and other units. The external clock matching and amplifying unit is connected with a first multivibrator 10MHz frequency-selecting unit and a clock driving unit, a first 10MHz band-pass filter amplifying unit is connected with the first multivibrator 10MHz frequency-selecting unit and an internal and external reference clock selecting unit, a internal time base signal generating unit is connected with a second multivibrator 10MHz frequency-selecting unit, a second 0MHz band-pass filter amplifying unit is connected with connected with the second multivibrator 10MHz frequency-selecting unit and the internal and external reference clock selecting unit, and the clock driving unit is connected with a control unit and the internal and external reference clock selecting unit. The synchronizing system can be compatible with various 1MHz, 2MHz, 5MHz and 10MHz clock inputs, provides a 10MHz clock output and can select 1MHz, 2MHz, 5MHzclock outputs according to external input clock frequency to solve the problem that different clock frequencies cannot be synchronized.

The invention discloses a novel transmission mode of a straight groove vibration machine and a transmission structure thereof. In the method, a universal coupler is driven by a motor, and an eccentric wheel shaft and an eccentric block group in a bearing seat at the bottom of a groove body are driven by the universal coupler so as to lead the groove body to vibrate regularly. The structure comprises the groove body (1), the lower part of which is connected with the bearing seat (2); the bearing seat (2) is internally provided with the eccentric wheel shaft (7), and two ends of the eccentric wheel shaft (7) are respectively provided with a group of eccentric wheels (3); the eccentric wheel shaft (7) is connected with the universal coupler (4); and the other end of the universal coupler (4)is connected with an output shaft of the motor (5). The invention effectively eliminates the twist of the groove body caused by asynchronous vibration sources, and the common motor replaces the expensive vibration motor, thus reducing the requirement on the groove body stiffness, improving the stability of the vibration machine, and leading the grinding vibration to be stable. The invention has good grinding effect, saves the cost, and is convenient for maintenance.

The invention provides a multilevel architecture for data synchronization, a data synchronization method and a fault handling method, belonging to the technical field of database data synchronization. The multilevel architecture comprises a top-level domain and a plurality of secondary-level domains which are sequentially connected; to-be-synchronized data is issued to a first stage of secondary-level domain from the top-level domain; after that, the to-be-synchronized data is issued to a second stage of secondary-level domain by the first stage of secondary-level domain and is then issued stage by stage. Each stage of secondary-level domain comprises a plurality of servers, wherein one of the servers is a master server, and others are slave servers; each master server is used for receiving the to-be-synchronized data and forwarding the to-be-synchronized data to all the slave servers in the corresponding secondary-level domain after data synchronization is finished; the secondary servers are used for receiving the to-be-synchronized data and completing data synchronization. The multilevel architecture can solve the problem that data cannot be synchronized due to the fault of the master servers by replacing the master servers in the secondary-level domains without needing to find out the specific cause of the fault and eliminate the fault.

The present application discloses an audio and video playing method, device, device and storage medium, the method comprising: determining the first file start position of the audio data and the second file start position of the video data of the target audio and video; when the When the amount of storable data between the first file start position and the second file start position is greater than or equal to a preset threshold, the audio data and video data are read respectively based on dual IO channels; according to the read audio data sort the read audio data and video data; and play the target audio and video based on the sorted audio data and video data. Utilizing the technical solution provided by this application can solve the problems of low effective data transmission on the network and the inability to synchronize audio data and video data, and ensure the synchronization of audio data and video data during decoding and playback, avoiding the phenomenon of stuttering.

The invention discloses an FC network time synchronization method based on a complex network structure, and relates to the field of FC network time synchronization methods. The method comprises the steps that 1, device IDs and master clock ID values of all devices are set, the initial values are the device IDs, ID primitives are generated, and the priorities of all the devices are set; 2, the device sends an ID primitive and a time primitive to an adjacent device, and timing is started at the same time; step 3, the adjacent device receives and analyzes the ID primitive, and replies the ID _ RDY primitive to the device; 4, after receiving the ID _ RDY primitive sent by the adjacent device, the device stops timing and calculates the time difference; step 5, the devices are synchronized according to the set priorities and the master clock ID values of the synchronized devices are updated to complete priority transmission; according to the method, the problem that FC network time of a complex network structure cannot be synchronized due to the fact that priority of existing FC equipment cannot be transmitted is solved, and the effects of achieving priority transmission and time synchronization of all FC equipment are achieved.

The invention relates to a control system for a multi-axis servo motor which comprises a position ring module for receiving a position ring set value and a position feedback value of each axis and calculating a speed ring set value, a speed ring module for receiving a speed ring set value and a speed feedback value of each axis and calculating a current ring set value, a current ring module for receiving a current ring set value and a current feedback value of each axis and outputting a current ring output value, a pulse width modulation signal generating module for receiving the current ringoutput value from the current ring module and generating a pulse width modulation signal for controlling the servo motor of each axis, and a multi-axis sequential control module for controlling the signal receiving and processing of the position ring module, the speed ring module, the current ring module and the pulse width modulation signal generating module. The control system for a multi-axis servo motor of the invention solves the problem that a single axis servo controlling each axis to separately drive can not be synchronous and the electromagnetic interference between axes is efficiently decreased.