16results about How to "Accurate synchronization" patented technology

The invention provides a mouth shape generation method and device for voice driving, and relates to the technical field of natural language processing. The method comprises the following steps: based on an ffmpeg tool, carrying out image processing according to original video data to obtain spliced frame image data and facial feature points; according to the original audio data, performing feature extraction through a deep audio feature extractor to obtain audio features; performing feature fusion through an audio-video sequence feature fusion device to obtain fusion features; performing video generation through a lip action generator according to the facial feature points and the fusion features to obtain synthesized video data; optimizing a lip action generator according to the original video data and the synthesized video data; and performing video generation based on the depth audio feature extractor, the audio-video sequence feature fusion device and the optimized lip action generator to obtain target synthesized video data. The invention relates to a mouth shape generation method aiming at voice driving, which is high in video resolution and sufficient in facial texture detail reservation.

The invention discloses a database synchronization method, and belongs to the technical field of database synchronization. The problems that an existing database synchronization scheme is low in synchronization speed and poor in real-time performance and stability under the condition of large data volume are solved, successful connection between the source database and the target database can be ensured by configuring the source database, meanwhile, the security of the source database and the target database can be ensured through security configuration, and the security of the source database and the target database is ensured. According to the partition synchronization scheme, the source database can be partitioned, a synchronization rule is configured for the partitions, and the data of different partitions are processed by the partitions corresponding to the target database, so that large-scale data can be processed under the condition of large data volume, the synchronization speed is increased, the database synchronization state is continuously monitored, and the data synchronization efficiency is improved. According to the method and the system, the database synchronization efficiency and accuracy can be ensured, and the synchronization result is verified after the synchronization is completed, so that all data is correctly synchronized to the target database.

The invention discloses a distributed intelligent substation network monitoring system and a network time synchronization method. The monitoring system comprises sensors arranged in a plurality of substations, a data acquisition and processing module, a field monitoring terminal, an execution control mechanism, an industrial personal computer, a display screen, a network communication module, a remote management center and a time synchronization module. The method comprises the following steps: S1, constructing a multi-layer time synchronization network by introducing a plurality of time sources; the PTP time synchronization device is used for time synchronization, network time synchronization is completed by using a timestamp, and high-precision time synchronization is provided; and S2, when the PTP time synchronization device has a fault or the network is unstable. According to the invention, the environmental parameters of the transformer substation and the working parameters of the transformer can be monitored in real time, an accurate data basis is provided for intelligent control of the transformer substation, flexible selection can be realized according to actual conditions, accurate synchronization of system equipment is ensured, and the reliability and stability of system operation are improved.

The invention discloses a time synchronization method and system for multi-sensor fusion, and the method comprises the steps: enabling a positioning sensor to transmit correction time to a calculation platform, so as to enable the calculation platform to correct the system time according to the correction time; after the calculation platform carries out time correction, PWM signals of various frequencies are generated, and the laser radar, the inertial navigation and the camera are synchronously driven to carry out data acquisition, so that time synchronization during multi-sensor fusion is realized. According to the method, the sensors synchronously collect data based on the computing platform, data collection is carried out under the unified time reference, accurate synchronization of the data of the multiple sensors can be achieved, in addition, the time synchronization method does not need interpolation operation, the calculation amount can be reduced, computing resource occupation can be reduced, and therefore the requirement for autonomous moving tasks with high real-time performance can be met.

This invention relates to the fields of nuclear detection electronics and radiation signal processing technology, specifically to an intelligent analysis system and method for nuclear radiation data. The system includes: acquiring a discrete voltage sequence output by the detector; marking pulse signals as clean pulses and calculating the real-time decay constant; calculating the net signal amplitude using a digital twin state-space recursive model; determining the real-time count rate based on the net signal amplitude and calculating the dynamic time window width based on the real-time count rate; discretely accumulating the net signal amplitude based on the dynamic time window width to generate a single-particle physical energy value; determining the measured peak position based on the single-particle physical energy value and generating a gain adjustment coefficient by combining the measured peak position with the real-time decay constant; and outputting a gain control signal based on the gain adjustment coefficient. This invention ensures precise synchronization between the subsequent calculation model and the current physical state of the detector, thereby significantly improving the physical authenticity and accuracy of energy spectrum analysis under varying temperature conditions.

A multi-channel signal synchronization method and system based on power detection, relating to the technical field of multi-channel signal synchronization, including sequentially arranging an adjustable digital delay module, a digital-to-analog converter and an adjustable analog delay module on all channels. The adjustable digital delay module is used to scan the sample delay value of the adjustment channel to achieve sample synchronization. The adjustable analog delay module is used to scan the phase delay value of the adjustment channel to achieve phase synchronization after sample synchronization. The standard for sample synchronization and phase synchronization is: the output power after the adjustment channel and the reference channel are combined is the maximum. The present invention does not rely on a DAC chip to provide a synchronization function, and adopts closed-loop measurement control measures to solve the synchronization problem of multi-channel DAC output signals from the two aspects of sample synchronization and phase synchronization.

The invention discloses a remote communication ground cable well intelligent well lid, and belongs to the technical field of intelligent well lids, the remote communication ground cable well intelligent well lid comprises an intelligent well lid main body, the top of the intelligent well lid main body is provided with a mounting cavity, the mounting cavity is internally provided with an intelligent management host, and the intelligent management host comprises a signal acquisition module, a remote communication emission module and a remote communication execution module; the signal acquisition module is electrically connected with the remote communication transmitting module and is used for acquiring a signal of a sensor mounted at the front end of the intelligent well lid; the remote communication transmitting module is electrically connected with the remote communication execution module and is used for converting the acquired signal into a frequency domain signal and converting the frequency domain signal into a cyclic signal based on a tail signal in the frequency domain signal; and the remote communication execution module is electrically connected with the main control module and is used for transmitting the cyclic signal to the signal receiving equipment based on the interference signal and the signal characteristics of the signal receiving equipment. The problem that signal synchronization is poor due to the fact that signals are not fully and reasonably processed is solved.

The invention discloses a control device for reducing a THD value of a PFC circuit and a control method thereof, and relates to the technical field of PFC circuits. The control device comprises a microcontroller unit and a PI controller provided with a current loop and a voltage loop. The microcontroller unit inputs voltage change parameters to the voltage loop of the PI controller based on obtained external load information and current input voltage, and obtains a power factor value higher than a preset PFC threshold value. Obtaining an output voltage of the voltage loop, and calculating a voltage difference value between the output voltage and a preset reference voltage; calculating an input voltage effective value of the voltage loop, and obtaining a reference current value of the current loop; the input current is compared with a reference current value of a current loop, the duty ratio of a synchronous PWM signal of a PI controller is calculated and determined based on a current loop of the PFC circuit, and the microcontroller unit performs optimization control on the PFC circuit based on the duty ratio of the synchronous PWM signal; the PFC circuit has the effect of further reducing the THD value of the PFC circuit.

The invention relates to the technical field of Internet of Things communication, and particularly discloses a method and a device for double-screen independent operation and data synchronization. Comprising the following steps that two pieces of display equipment with independent display, processing and storage functions are set, the two pieces of display equipment are the first equipment and the second equipment respectively, and each piece of equipment can run independently and execute different operation tasks respectively; generating operation data on the first device and generating a unique identifier (UUID) for each operation, and storing the UUID in a first device database; the operation data and the UUID are transmitted to a second device through a network protocol, and the second device analyzes the received operation data and the UUID and stores the operation data and the UUID in a second device database; verifying the data consistency of the first equipment and the second equipment through the UUID to ensure the synchronization of the operation data; when the first device or the second device breaks down, the other device can still operate independently. According to the method, the fault tolerance and reliability of the system can be improved, and the method is suitable for an industrial control system needing high data synchronism and multi-task processing.

The utility model relates to the technical field of nuclear radiation, in particular to a neutron angle correlation distribution information acquisition system, which comprises a neutron detector, a time position sensitive detector module, a time flight measurement module, a synchronous trigger control module, a signal processing module, a data acquisition module and a spherical support frame, the system adopts a structure in which multiple neutron detectors are uniformly distributed, is combined with a time position sensitive detector module and a time flight measurement module, is distributed on a spherical framework, and can collect neutron angle correlation distribution in a 4pi space angle, including neutron energy, time and angle; and angle distribution, time difference distribution, energy association, event counting and direction association information are obtained, and data information support is provided for radionuclide identification.

A method of manufacturing a panel (1), comprising the steps of supplying a substrate (2) having an upper side (3), applying a layer onto the upper side (3) and subsequently irradiating the upper side (3) so as to cure at least a part of the layer by irradiation, hence forming the panel (1), wherein the layer comprises a liquid coating (12, 17) on substantially the entire upper side (3) and a substance (11, 19, 21) which is digitally printed locally on the upper side (3), wherein the substance (11, 19, 21) and the liquid coating (12, 17, 21) cooperate such that either the coating (12) and the substance (11) react with each other, whereas the substance (11) is a liquid that is printed on the upper side (3) before the coating (12) is applied and wherein the substance (11) and the coating (12) have different surface tensions, or the coating (17) is non-curable or only curable to a limited extent by the irradiation, whereas the substance (19) makes the coating (17) curable by the irradiation at locations where they meet each other.

This invention discloses an algorithm for improving time synchronization accuracy in a master-slave network topology. The algorithm comprises the following steps: S1, establishing a master-slave network topology; S2, exchanging messages to obtain four timestamps and calculating the master-slave clock offset and average link delay, sending an Optimize_Req message to the master clock; S3, selecting the optimal master-slave clock offset from multiple offsets and calculating the asymmetric link delay ratio for each synchronization; S4, if the current link delay is approximately symmetrical, the master-slave clock offset is used to update the slave clock; S5, if the current link delay is asymmetric, the clock offset estimate is obtained using the maximum likelihood estimation algorithm, and an Optimize_Resp message is sent to the slave clock to update it. This invention improves the PTP time synchronization protocol by using the above algorithm, adding two message transmissions. The master clock receives the synchronization results from multiple slave clocks, further performs filtering and optimization, and then sends the updated results to the slave clocks, allowing the slave clocks to adjust themselves.

The invention provides a video content modification method and device, electronic equipment and a storage medium, and relates to the technical field of multimedia, and the method comprises the steps: extracting the initial audio of a target person in an original video, and extracting the sound of the target person and an audio text according to the initial audio; modifying the audio text to obtain a target text, and synthesizing a target audio according to the target text and the target human voice; recording a face mouth shape video according to the target audio to obtain a driving video; performing mouth shape calibration according to the driving video and the target audio to obtain a standard driving video; and inputting the standard driving video and the original video into the implicit key point driving model to obtain a synthetic video. According to the method, the natural mouth shape, expression and head posture are provided by recording the face driving video, so that the generated video is more vivid and smoother in the mouth shape aspect, the final video effect is ensured to better conform to the expectation, the driving video and the audio are subjected to reasoning and training in the hidden space, and the video generation speed and quality are improved.

This application is applicable to the terminal field, and provides a scenario synchronization method and apparatus, an electronic device, and a readable storage medium. The method includes: A second device controls a third device in a second place based on a setting parameter of a second scenario, to implement the second scenario in the second place. The setting parameter of the second scenario is generated based on a setting parameter of a first scenario. The second device controls a fourth device in the second place when a second environmental parameter is different from a first environmental parameter, so that the second environmental parameter is the same as or similar to the first environmental parameter. The second scenario is generated by using the setting parameter of the first scenario, and a scenario in a first place can be synchronized to the second place without a need of manually configuring the scenario. This can effectively improve scenario synchronization efficiency, reduce operation difficulty, and improve user experience of scenario synchronization. In addition, a user can have the same experience in the second scenario as that in the first scenario.

The invention discloses a 5G network interference test method and system based on radio frequency coverage interference. The system comprises legal transmitting equipment, receiving equipment to be tested and radio frequency interference equipment, the radio frequency interference device implements various different types of interference, including but not limited to persistent interference, reactive interference, random / periodic interference, synchronous radio frequency coverage interference, and the like. According to the invention, radio frequency coverage interference, including time-frequency synchronization, interference subframe generation and interference subframe transmission, is realized. The legal transmitting device and the receiving device to be tested for the anti-interference test collect and store performance indexes of the 5G network system in an interference environment, such as a signal-to-noise ratio, a block error rate, a data rate and the like. According to the invention, the limit anti-interference performance of the 5G equipment is evaluated by using the radio frequency coverage interference, the provided interference means has advancement, the targeted interference suffered by the 5G equipment in a real scene can be simulated, and the anti-interference performance of the equipment under the novel radio frequency coverage interference is tested.

The invention belongs to the field of industrial automation control, and provides a method for synchronizing redundant data started for the first time by a controller and a related device, and the method comprises the following steps: S1, a standby machine DPU obtains a POU-SM3 list of a host machine DPU; s2, the standby machine DPU compares the POU-SM3 list of the host machine DPU with the POU-SM3 list of the standby machine DPU, if POU configuration files with inconsistent SM3 hash values exist, the POU configuration files with the inconsistent SM3 hash values are marked as POU configuration files to be synchronized, S3 is executed, and otherwise S4 is executed; s3, the standby DPU performs differential synchronization on the POU configuration file to be synchronized and updates an SM3 hash value corresponding to the POU configuration file in a POU-SM3 list of the standby DPU; and S4, ending the synchronization. According to the method disclosed by the invention, the POU configuration file of the host DPU can be accurately and quickly synchronized when the standby DPU is started for the first time.