149results about How to "High synchronization accuracy" patented technology

The invention relates to a character-driven lip sound synchronous digital human generation method and device, equipment and a medium, and the method comprises the steps: obtaining an input text and a single object video, and carrying out the preprocessing of the input text, and obtaining a phoneme sequence and semantic features; the method comprises the following steps: preprocessing a single-object video to obtain a circularly played video paragraph, a mask face image and a reference face image; generating voice features based on the phoneme sequence and the semantic features; generating an audio sequence based on the voice features; acquiring face deformation parameters according to the mask face image, the reference face image and the voice features, and deforming the reference face image to generate a target face image; and embedding the target face image into a video frame of the video paragraph to generate a video sequence, and splicing the video sequence with the audio sequence to obtain a target digital human video. The digital human video is generated based on text driving, so that the voice and lip-shaped video matched with the text can be generated in time, the time delay for waiting for text to be converted into voice processing is eliminated, and the digital human video production efficiency is greatly improved.

The invention provides a time division duplex multi-carrier synchronous transmission method based on 5G, which is used for solving the problems of inflexible carrier time slot allocation and inaccurate time delay compensation in synchronous transmission. By dynamically adjusting time slot allocation and working frequency bands of carriers in a network control center, the method optimizes network loads and reduces cross interference; the time delay of each carrier is compensated in real time by adopting a synchronous signal calibration algorithm, so that strict alignment of transmission time slots is ensured; the transmitting end dynamically adjusts the transmitting power according to link state information, and the receiving end reduces interference and signal attenuation through a multi-carrier cooperative interference management and multi-path delay compensation mechanism; and a receiving end performs joint decoding based on channel estimation and integrates demodulation signals of all carriers, so that the transmission efficiency and the signal quality of the 5G network are improved. The method is suitable for a base station system and a base station and repeater extension coverage system, and is especially suitable for a distributed wireless system including an optical fiber remote distributed system, a cable remote frequency shift repeater system and the like.

The invention relates to the technical field of synchronous acquisition, in particular to a multi-camera synchronous data acquisition method and system, and the method comprises the following steps: based on a real-time video stream of a camera, analyzing a video frame, recognizing a moving object in a differentiated video stream, and carrying out the recognition of the moving object in the differentiated video stream; and synchronously recording the occurrence time and position change of the moving object in the differentiated camera to obtain view angle change data. According to the invention, the angle and focal length of the camera are synchronously adjusted to cope with the view angle change of different scenes, and the trigger time of the camera is uniformly configured and is synchronously started through the network, so that the time deviation is reduced, the analysis of the synchronous trigger data set and the timestamp adjustment are synchronously triggered, and the synchronization between the cameras is optimized; the consistency and synchronism of the video streams obtained from different angles are ensured, the data transmission parameters are dynamically adjusted according to the network condition, the efficiency and synchronization precision in the data transmission process are improved, and the influence of network delay and bandwidth change is effectively dealt with.

The invention relates to a cross-network time synchronization method oriented to AUTBUS and TSN fusion, and belongs to the field of network time synchronization. The invention aims to solve the problems that the traditional Ethernet cannot meet the time-sensitive application requirement and the scale of the TSN is limited and the like. According to the method, a time compensation value prediction algorithm is placed in an AUTBUS terminal, time delay values of all parts in the heterogeneous network are collected and predicted, and finally a prediction result is compensated to a local clock of the AUTBUS terminal, so that end-to-end time synchronization of the AUTBUS and TSN fusion network is realized. The method comprises the four steps of TSN intra-network time synchronization, gateway intra-network time synchronization, AUTBUS intra-network time synchronization and AUTBUS terminal time compensation, time delay data are predicted through a linear regression prediction algorithm, and synchronization precision and efficiency are improved. The method is suitable for the fields of intelligent manufacturing, industrial automation and the like, and an effective solution is provided for time synchronization of the heterogeneous network.

The invention relates to a cross-domain clock synchronization method in a time sensitive network, and belongs to the technical field of time synchronization. The method comprises the following steps: establishing a multi-domain clock synchronization network topology based on a transit clock; the transit clock obtains main clock time according to the main domain synchronization message, carries out link delay measurement message interaction with adjacent equipment, records a corresponding timestamp and obtains link delay; transmitting the acquired main clock time, each timestamp and link delay to a synchronization error compensation prediction module in the transfer clock, calculating a clock time offset result by the synchronization error compensation prediction module, and predicting error compensation; frequency and phase adjustment is carried out on a local clock according to the calculated error compensation predicted value, a slave domain synchronization message is sent to adjacent slave clock equipment, and forwarding of the slave domain synchronization message and clock correction are carried out in sequence. According to the invention, accumulated errors such as jitter, time delay change and network congestion can be eliminated as much as possible.

The invention belongs to the technical field of energy storage systems, and provides a multi-scale energy storage system control method and system, and the technical scheme is that a centralized access mode is adopted, an energy storage device is connected to a wind power grid-connected bus, damping control is adopted, a power oscillation damper is additionally arranged, and damping is increased by controlling the output of a DFIG; mode damping, filtering and phase compensation are improved through a POD control structure installed on the machine side; low-frequency oscillation is suppressed through energy storage, positive damping is provided for frequency oscillation of the system, when low-frequency oscillation occurs in the frequency of the system, the energy storage dynamically adjusts the active output according to the frequency change of the system, the control modes mainly include droop control, inertia control and nonlinear control, power compensation and peak load shifting are achieved, the energy storage utilization rate is high, and the energy storage efficiency is high. Damping control is adopted for a multi-scale energy storage system and a new energy system, a power oscillation damper is additionally arranged, and the small disturbance stability of a high-permeability regional power grid is enhanced.

The embodiment of the invention provides an LTE230 system downlink synchronization method and device. The method comprises the following steps: acquiring a received signal; performing PSS coarse synchronization detection according to the received signal and a generated local main synchronization signal, and determining a PSS coarse synchronization position and a cell intra-group identifier; performing PSS fine synchronization detection according to the received signal and the PSS coarse synchronization position, and determining a PSS fine synchronization position; and performing SSS synchronization detection according to the received signal and the PSS fine synchronization position, and determining a cell group identifier and a frame initial position. According to the synchronization signal generation method and the detection method provided by the invention, the complexity can be reduced, and the synchronization precision can be improved.

The invention discloses a cable sensor network time service compensation method, device and equipment and a medium, and belongs to the technical field of network time service, and the method comprises the following steps: collecting process historical data of a cable network actual error compensation system, and taking error data of a satellite second clock and a crystal oscillator second clock as an initial sample; aggregating the initial samples to obtain aggregated samples under each step size scale; constructing an error feature vector containing an aggregation sample of the current scale and an accumulated error of the current time point information; performing modeling on the error feature vectors by using a Gaussian-like process regression model to obtain a Gaussian-like process regression model of each step size scale; error estimation values of all step size scales are generated in sequence, and a time service error estimation value of the current moment is obtained by combining the difference error estimation values of the lowest step size scale and the highest step size scale; and compensating the accumulated error of the crystal oscillator clock based on the time service error estimation value at the current moment. According to the invention, the synchronization precision and practicability are improved.

The invention discloses a high-speed and high-precision phase locking method, which can accurately grasp the noise level, phase deviation and attenuation coefficient of a channel through quantum channel estimation, and provides important information for subsequent processing. Signal decomposition allows accurate representation of the signal on a quantum base, laying a foundation for noise suppression (S3) and signal reconstruction. And noise suppression utilizes a quantum mechanism, so that the efficiency and accuracy of signal processing are improved. Adaptive link establishment and time-sharing signal transmission aim at different transmission requirements, and the efficiency of communication link establishment and data transmission is optimized. And link monitoring ensures the stability and reliability of communication. On the whole, the method can improve the security, stability and efficiency of quantum communication, reduces the complexity of quantum signal processing, and provides powerful technical support for practicability and commercialization of quantum communication.

The invention discloses a multi-port PTP time service device and a time service method thereof, and the device comprises a main time server which is used for providing high-precision time information; the auxiliary time server is used for providing time information when the main time server fails; the multi-port PTP switch is provided with a plurality of network interfaces and is used for connecting the main time server, the auxiliary time server and the plurality of time synchronization clients; the plurality of time synchronization clients are used for receiving the time information and performing time synchronization; according to the invention, a time synchronization service is provided for a plurality of devices at the same time, and the time synchronization requirement in a multi-device and multi-node complex network environment is met; the clock skew and the network delay are accurately estimated and compensated, and the synchronization precision is further improved; the synchronization strategy is dynamically adjusted according to the network condition and the number of devices, it is ensured that the synchronization precision is not affected when the network environment changes or the number of the devices increases, the auxiliary time server is automatically switched to when the main time server breaks down, and the reliability and stability of the system are improved.

The invention belongs to the technical field of electromagnetic signal analysis, and particularly relates to a multichannel sampling synchronization precision correction method based on an RFSOC (Radio Frequency System On Chip), a plurality of RFSOC chips synchronously sample in parallel, an ADC (Analog to Digital Converter) high-speed data conversion module is integrated in each RFSOC chip, data acquisition is carried out through the ADC high-speed data conversion module, the acquired data is stored in an FIFO (First In First Out) in real time, and the accuracy of the FIFO is improved. And adjusting the output sequence of the FIFO storage according to the rising edge of the pulse signal. The ADC module of the RFSOC is used in the multi-channel high-speed sampling synchronization process, multiple chips are synchronized through pulse signals, multi-channel synchronous correction among the multiple chips is achieved, the number of needed peripheral circuits is small, collection channels are convenient to expand, additional ADC chips are not needed, and hardware resources can be saved; meanwhile, the signal transmission path is shortened, so that the synchronization precision of signal sampling can be improved.

The invention discloses a method for realizing a synchronous client function in an AS6802 protocol based on an FPGA (Field Programmable Gate Array). The method comprises the following steps of: 1) receiving a PCF (Policy Control Function) sent by a switch; according to the method, the function of synchronizing the client in Ethernet time synchronization is achieved through the FPGA, and the method has the advantages of being low in delay, high in precision, high in fault tolerance, capable of improving system reliability and the like and is convenient to transplant and learn.

The invention belongs to the technical field of nuclear power station large flange face in-situ machining and repairing, and aims to solve the technical problems that in-situ machining and repairing on-site installation and adjustment of a nuclear power station large flange face need many workers, and efficiency is low. The invention discloses a rapid installation and adjustment device and method for nuclear power large flange face in-situ machining and repairing equipment, the device comprises a base device and an electric rapid expansion mechanism, the electric rapid expansion mechanism comprises a jacking screw rod, a jacking block and a transmission screw rod, the transmission screw rod is connected with a motor, and the motor drives the jacking screw rod to stretch out or retract; according to the method, an electric rapid expansion mechanism is installed on the side edge of a base device, rapid stretching or retracting of a jacking block is achieved through a driving motor, and rapid installation and adjustment of the nuclear power large flange face in-situ machining and repairing equipment are achieved. Rapid installation and adjustment of the nuclear power large flange face in-situ machining and repairing robot can be achieved, the on-site installation and adjustment time of personnel is shortened, and the radiation dose of the personnel is reduced.

The invention discloses a variable-speed hydraulic synchronous driving system with non-equivalent flow division and a working method of the variable-speed hydraulic synchronous driving system, and belongs to the technical field of hydraulic synchronous driving. Comprising a measurement and control system, a servo oil source, a dynamic pressure feedback diverter valve and a driving unit, the servo oil source, the dynamic pressure feedback diverter valve and the driving unit are connected in sequence, the driving unit comprises a first driving branch and a second driving branch, a diverter detection unit comprises a flow compensation module, and the flow compensation module comprises a valve body; the pressure compensation unit comprises a first pressure compensation valve, a second pressure compensation valve and a shuttle valve, and the dynamic pressure feedback unit comprises a spring-mass module and a damping hole which are connected in series. Flow is distributed and loads are homogenized through the load-sensitive diverter valve, the flow difference, caused by time-varying unbalance loading, of the two branches is compensated through the dynamic pressure feedback device, high-precision synchronization of the two driving branches is achieved through the non-equivalent diverter principle, and meanwhile the efficiency of the synchronous driving system is improved through variable-rotating-speed servo oil supply.

The invention discloses a system and a method for voice mouth shape action matching of a dialogue robot, and relates to the technical field of voice matching, the method adopts a Bluetooth dual-channel technology, a time point array is transmitted to an Arduino mainboard of the dialogue robot through a first Bluetooth channel, a voice file is transmitted to sound equipment of the dialogue robot through a second Bluetooth channel, and the sound equipment of the dialogue robot is used for voice mouth shape action matching of the dialogue robot. High synchronization of voice playing and mechanical actions and synchronous transmission of voice files and time point arrays are achieved, close association between voice playing and mouth-shaped actions is ensured, and action lag caused by transmission delay or untimely hardware response is avoided. And each time point in the time point array can be accurately read and compared through a timer arranged in the Arduino mainboard, so that the steering engine can immediately respond at each set time point, and the opening and closing actions of the mouth of the conversation robot are driven. And when the time point arrives, an instruction is sent to control opening and closing of the mouth shape, so that the voice and the mouth shape action are highly consistent.

The invention discloses an OTSM-based attitude sensor and hydrophone data alignment method, and belongs to the technical field of ocean monitoring. The method for aligning attitude sensor and hydrophone data based on an OTSM synchronization technology comprises the following steps: inserting a pilot symbol in a signal of a hydrophone through a synchronization algorithm of a time axis and a time delay axis; time delay on different propagation paths is determined by searching a peak value of a pilot signal to perform time synchronization on data, and accurate frequency alignment of data of multiple sensors in a complex environment is realized through Walsh-Hadamard transform frequency compensation by combining a signal containing a pilot symbol. The frequency alignment of the attitude data and the hydrophone data is ensured, and higher synchronization precision is realized.

The invention relates to the technical field of Bluetooth sound boxes, in particular to a Bluetooth sound box synchronous playing method and system. The method comprises the following steps: performing master device election on a Bluetooth loudspeaker box group to obtain a loudspeaker box group master device identifier; carrying out distributed time synchronization network construction on the Bluetooth sound box group based on the sound box group main equipment identifier to obtain a sound box group time synchronization network; performing environment signal scanning on the Bluetooth sound box group to obtain environment frequency band signal data; performing dynamic frequency band allocation on the Bluetooth loudspeaker box group based on the environment frequency band signal data to obtain a loudspeaker box group frequency band allocation scheme; performing network performance parameter monitoring on the Bluetooth sound box group to obtain a sound box group network performance parameter set; and according to the sound box group network performance parameter set, performing audio buffer area determination on the Bluetooth sound box group to obtain an audio buffer area distribution scheme. According to the invention, the accuracy and stability of audio synchronization are improved, the user experience is optimized, and the application scene of the Bluetooth sound box is widened.

The invention provides a synchronization system for DSSS pseudo code signals. The synchronization system comprises a capturing module, a pseudo code positioning module and a pseudo code tracking module. The synchronization method comprises the following steps: the capture module captures a pseudo code element in a DSSS signal; the pseudo code positioning module is used for preliminarily positioning a first pseudo code element in the first pseudo code signal; and the pseudo code tracking module obtains a synchronization result of the DSSS pseudo code signal. Three frequency spectrum enhancement modules in the pseudo code tracking module carry out frequency spectrum enhancement on detection results of frequency spectrum data after PMF-FFT operation of the three branches, correction of the maximum value of frequency domain module values of the three branches is achieved, and then related gain scallop loss of the maximum value of the frequency domain module values in the pseudo code tracking process is reduced. The synchronization precision is effectively improved; and meanwhile, the acquisition module does not need to participate in an FFT (Fast Fourier Transform) operation unit when acquiring the pseudo code elements in the DSSS signals, so that the delay of pseudo code acquisition is reduced, and the synchronization efficiency is effectively improved.

The invention provides a virtual main shaft control method of a mobile platform, which is characterized in that an inter-shaft handshake constraint control algorithm is added between two or more servo motor shafts, and under the control strategy that a slave shaft follows a virtual main shaft, the synchronous control precision is further improved, and the problems that the current walking motor is asynchronous and the synchronous precision is poor are solved; the risks of clamping stagnation and damage of the machinery and even the mobile platform caused by asynchronous walking motors are reduced; hardware cost is saved, the walking motor can be selected in a low-cost and small-size mode, arrangement of sensors such as a travel switch is eliminated, installation space and construction steps are greatly saved, and another scheme of multi-shaft synchronous control is provided.

This application relates to an interrupt generation device with synchronization function. By using one of the interrupt generation modules as a reference interrupt module, when the synchronization signal output by the synchronization output module arrives, the reference timing module adjusts the count of each interrupt module according to the synchronization signal, the reference count of the reference interrupt module, and the timing duration of the reference timing module itself, so as to change the output time of each subsequent interrupt signal. This makes the output reference interrupt signal synchronized with the synchronization signal, and other interrupt signals still maintain the initial phase relationship with the reference interrupt signal before adjustment, and eventually synchronize with the synchronization signal. In this way, only one synchronization signal is needed to ensure that the synchronization of all interrupt signals is achieved without changing the phase relationship between the interrupt signals of each interrupt generation module. The method is simple and has high synchronization accuracy.

The invention discloses an interference communication integrated waveform generation method based on spectrum dispersion-multi-system phase shift keying. The problems of difficult communication information demodulation and high hardware implementation complexity in interference communication integration research are mainly solved. According to the scheme of the invention, the SMSP interference signal is formed by periodically expanding the chirp signal on the time domain, the communication information is modulated on the phase of the chirp signal, and the plurality of chirp signals carrying the communication information can cause dense false target interference at random positions on the radar, so that the interference and communication integrated signal is generated. At a communication receiving end, a first linear frequency modulation signal is adopted to perform carrier synchronization, so that the synchronization effect can be improved by using the high time width-bandwidth product characteristic of the linear frequency modulation signal, and communication information can be demodulated directly by using a coherent demodulation mode; at a radar receiving end, the signal can generate a radar interference effect with dense false target characteristics.

The invention discloses double-spindle numerical control turning and milling combined machining equipment, and belongs to the technical field of numerical control milling machines, the double-spindle numerical control turning and milling combined machining equipment comprises a machine body, a driving mechanism is arranged at the upper end of a rack, the driving mechanism comprises a first movable seat, an insertion hole is formed in the first movable seat, and a synchronous connecting mechanism is slidably connected to the driving mechanism; the synchronous connecting mechanism comprises a second movable seat, a second electric push rod is installed at the upper end of the second movable seat, the output end of the second electric push rod is inserted into the inserting hole, and a first motor and a second motor are installed on the first movable seat and the second movable seat respectively. By arranging the synchronous connecting mechanism, synchronous movement of the second motor and the first motor can be achieved, meanwhile, the end and the outer surface of a workpiece are milled, the synchronous precision is high, the working efficiency is improved, after end machining is completed, linkage can be quickly relieved, independent operation of a single shaft is achieved, and the flexibility of equipment is enhanced.

The invention belongs to the field of electro-hydraulic system motion control, and discloses a fixed time optimal synchronous control method for an aero-engine electro-hydraulic actuating mechanism. Constructing a double-cylinder hydraulic system dynamic model, and defining a tracking error and a synchronous coupling error; designing an optimal synchronous controller based on a reinforcement learning actor-commentator architecture, and introducing a fixed time convergence mechanism; and a self-adaptive robust compensation item of the enhanced neural network is designed, and unmodeled dynamics and disturbance are inhibited. According to the method, Lyapunov stability analysis proves that the fixed time stability is met, and comparison experiment verification is carried out on an aero-engine hardware-in-the-loop experiment platform. The method solves the problems that in traditional synchronous control, convergence time depends on initial conditions and is sensitive to uncertainty, and a nonlinear HJB equation is difficult to solve, high-precision synchronous motion control within fixed time is achieved, and the method is suitable for an aero-engine electro-hydraulic execution system with the high reliability requirement.

The invention relates to an air compressor stator and rotor combination structure for a hydrogen fuel cell, which comprises a positioning mechanism, a bottom plate, a speed chain, a tray, a support, a pressing mechanism, a tray jacking mechanism, a proximity switch, a shell and a rotor, the speed chain is fixed at the upper end of the bottom plate through a plurality of supports, and the tray is conveyed between stations by the speed chain; the tray jacking mechanism is fixed to the lower end of the bottom plate, the proximity switch is fixed to the speed multiplication chain, and after the proximity switch senses that the tray is in place, the tray jacking mechanism jacks and positions the tray. The stator and rotor combination structure of the air compressor for the hydrogen fuel cell has double positioning of the shell and the rotor, positioning is more accurate, a servo motor and a module are adopted for mounting and pressing, and the synchronization precision is higher during descending and pressing. Ejector pin type pressing is adopted, high-precision coaxiality is achieved, a positioning mechanism is convenient to disassemble, model changing is easy, operation is easy, and efficiency is high; and the shell is positioned in a floating manner and is compatible with slight deformation of products.

This invention discloses a high-precision clock synchronization method between two wireless devices, comprising: Initially, a first wireless device sends a first message containing a transmission timestamp to a second wireless device. Upon receiving the message, the second wireless device overwrites its local reception timestamp with this first message, completing initial clock alignment. Subsequently, after a turnaround time, the second wireless device returns a second message to the first wireless device and calculates the one-way time of flight based on the time interval and turnaround time. At the next predefined superframe moment, the first wireless device sends a third message. The second wireless device calculates and corrects its local clock frequency offset based on this message and the timestamp of the previous message, while simultaneously correcting the local reception timestamp of the third message using the one-way time of flight. Thereafter, the above message exchange and calculation process is repeated at each superframe moment to continuously maintain high-precision synchronization. This invention fundamentally improves the clock synchronization accuracy between wireless devices.

The embodiment of the invention provides a synchronization control method and device, electronic equipment and a medium. The method comprises the following steps: determining a first duration for a first object to move to a second position at a first motion after being started from a first position; wherein the first movement comprises accelerated movement and uniform-speed movement after the speed reaches the first speed; and based on a detection signal for indicating a to-be-processed second object to move to a third position, according to the first duration, obtaining starting information of the first object which can enable the first object and the to-be-processed second object to simultaneously reach the second position. According to the embodiment of the invention, the synchronization precision is high, and is not influenced by the precision and computing power of the controller.

The invention discloses a satellite optical communication blind frequency offset estimation method, device and equipment based on extended phase difference, and a storage medium, and relates to the technical field of signal processing, and the method comprises the steps: obtaining an analog digital signal after digital-to-analog conversion during photoelectric detection; performing phase difference calculation and expansion processing according to the analog digital signal to obtain a phase difference sequence; performing anomaly detection and interpolation reconstruction according to the phase difference sequence to obtain a reconstructed phase difference sequence; and calculating an instantaneous frequency offset according to the reconstructed phase difference sequence, and carrying out noise smoothing processing on the instantaneous frequency offset to obtain a smoothed frequency offset estimation value. According to the invention, abnormal point detection and elimination are carried out on the phase difference sequence of the received signal, and the interpolation algorithm is utilized to reconstruct the continuous phase change track, so that the synchronization precision and link stability of the satellite optical communication system in a large-frequency-offset and high-dynamic scene are improved.

The application relates to a kind of moving base star sensor and high-precision time synchronization method of inertial navigation, and is mainly related to the technical field of integrated navigation, and the main steps include: real-time acquisition of the motion parameter data output by IMU;Using second-order extrapolation algorithm, based on IMU historical data, the equivalent IMU data corresponding to the star sensor data update time is calculated, the output frequency difference is adapted;Through asynchronous Kalman filtering algorithm, combined with IMU data and star sensor measured data, time update and measurement update are completed, and dynamic error is inhibited;Using high-precision crystal oscillator to optimize the clock source of inertial navigation system, the inherent error of clock output is reduced;Through multi-link cooperation, the time delay error of star sensor is compensated;Using FPGA interrupt latch, time alignment at the hardware level of star and inertial is realized.The method can effectively solve the time asynchronous problem of star sensor and inertial navigation data in the online calibration stage during flight, and guarantee the navigation accuracy and stability of integrated navigation system.

The invention relates to the technical field of power systems, and provides a passive clock synchronization method and system for distributed relay protection equipment, and the method comprises the steps: calculating the communication channel delay between a host and a slave, and executing the next step when the channel delay calculation is correct; checking the time of the host and the slave to synchronize the time of each slave; calculating the sampling beat time difference of the host and the slave; the sampling rhythm of the slave is adjusted, so that the sampling rhythms of the slave and the host are consistent in real time, and passive clock synchronization of the host and the slave is completed. According to the scheme of the invention, the passive clock synchronization method has the following advantages: the distance between the host and the slave is not limited, as long as the data transmission delay between the host and the slave is fixed or measurable; meanwhile, clock synchronization and beat synchronization of equipment in a local area are realized; the frequency is stable in the equipment beat adjusting process, and the synchronization precision between equipment is high; accidental data interruption does not affect sampling beat synchronization and time synchronization between devices.

The embodiment of the present application provides a synchronous shooting method, a first electronic device and a second electronic device. The synchronous shooting method includes: the first electronic device receives a first message from a synchronization server; the first message includes a first planned time point, and information about starting to shoot a video frame at the first planned time point; when the first time offset is greater than a preset threshold, P times of interpolation operations are performed, so that the first electronic device starts shooting a video frame at the first planned time point; the second electronic device receives a first message from a synchronization server; the first message includes a first planned time point, and information about starting to shoot a video frame at the first planned time point; when the second time offset is greater than a preset threshold, Q times of interpolation operations are performed, so that the second electronic device starts shooting a video frame at the first planned time point. The embodiment of the present application can quickly and automatically realize multi-camera synchronous shooting with high synchronization accuracy.