35results about How to "Shorten the time difference" patented technology

The invention discloses a chemical gas leakage detection management method and system, and relates to the technical field of chemical gas leakage detection, and the method comprises the following steps: determining a detection region and the gas type and characteristics of the detection region, collecting the environment data of the chemical detection region, constructing an environment parameter database, carrying out the preprocessing according to the collected environment data, and obtaining a detection result. The method comprises the following steps: analyzing environmental data influencing gas leakage detection to obtain an environmental data analysis sequence table, configuring detection equipment according to the environmental data analysis sequence table, establishing a data acquisition system and an anomaly detection mechanism, and collecting detection data and identifying anomaly detection data in the detection data by utilizing the detection equipment. The gas concentration in the environment is monitored in real time, abnormal conditions are rapidly detected, an alarm mechanism is triggered, a leakage source is found and controlled in time, the emission amount of harmful gas is reduced, the time difference from leakage occurrence to detection is shortened, and safety accidents such as fire disasters and explosions are effectively prevented.

The invention belongs to the field of sequence recommendation, and particularly relates to a contrast learning sequence recommendation method and system based on time interval data enhancement. The method comprises the following steps: acquiring original sequence recommendation data, wherein the original sequence recommendation data is a user behavior sequence of a plurality of users; dividing each user behavior sequence into a plurality of subsequences, and determining the longest uniform subsequence according to the time standard deviation and the sequence length of each subsequence; replacing and inserting the longest uniform subsequence in each user behavior sequence, and replacing the longest uniform subsequence in different user behavior sequences to obtain enhanced sequence recommendation data; wherein the enhanced sequence recommendation data is used for enhancing training of a contrast learning sequence recommendation model. According to the method, the uniformity of the global sequence and the local sequence is considered. By inserting new items between related items, it can be ensured that the time difference of local sequences is reduced, which helps to better capture user interest changes in a short term. And selecting the longest uniform sub-sequence to ensure that the longest uniform sub-sequence has enough similarity with the global sequence. And the inserted items are more similar to surrounding items, so that the consistency and coherence of recommendation can be kept. Therefore, the accuracy of the contrast learning sequence recommendation model is further ensured.

The invention provides a GNSS / INS (Global Navigation Satellite System / Inertial Navigation System) integrated navigation time asynchronous error compensation method and system, which comprises a GNSS operation unit, an IMU (Inertial Measurement Unit) operation unit and an integrated navigation unit, and is characterized in that the GNSS operation unit is used for periodically collecting and issuing GNSS data; the IMU operation unit is used for periodically acquiring IMU data and issuing the IMU data; and the combined navigation unit is used for acquiring the released IMU data and GNSS data, calculating a GNSS positioning result and an IMU positioning result, searching an imu positioning result with the closest time according to a timestamp Tgnss corresponding to the GNSS data, performing data fusion and outputting the positioning result accurately for a long time. According to the method, time asynchronization of inertial navigation data and satellite navigation data can be reduced, and the positioning precision of GNSS / INS integrated navigation is improved.

The invention provides a charging module switching method and device, equipment and a storage medium, and the method comprises the steps: predicting the charging demand information of a target vehicle at a target time point at a current time point, obtaining the predicted charging demand information of the target vehicle, and enabling the target vehicle to be a vehicle being charged at present, the target time point is a future time point after the current time point; and before the target time point arrives, charging module switching is carried out according to the predicted charging demand information. According to the technical scheme, the charging requirement of the vehicle can be matched in time, charging time is shortened, and charging efficiency is improved.

The invention discloses an energy storage power station safety early warning system operation method based on a battery base layer coupling model. Comprising the steps that a sensor arranged on a single battery of an energy storage power station collects single battery voltage, single battery temperature and electrolyte leakage detection information, and a battery module detects impedance of a battery through an impedance analyzer to obtain internal resistance change of the module; and judging according to the number of the isolated monomers in combination with a detection numerical value obtained by the electrolyte detection sensor for correspondingly collecting the monomers under a fixed time length, and if the detection numerical value does not have a decreasing trend or the decreasing amplitude is smaller than a fixed value, generating a command packet for starting the spraying device and sending the command packet to a power environment system to execute the command.

The present invention provides a static expansion method vacuum standard device, comprising: a primary standard chamber and a secondary standard chamber connected to each other; a plurality of sample chambers, each connected to the secondary standard chamber through a sealing valve, and a plurality of sample chambers having a movable valve at one end; a vacuum system for vacuuming the primary standard chamber, the secondary standard chamber and the sample chamber; a gas supply system for supplying gas to the primary standard chamber, the secondary standard chamber and the sample chamber; a plurality of containers corresponding to the sample chamber, each of which is provided with a plurality of accommodating areas for accommodating a plurality of samples to be tested; the containers are used to accommodate a plurality of samples to be tested and feed them into the corresponding sample chamber to test the standard. After the standard is completed, the sealing valve is closed, and after the gas supply system re-pressurizes the sample chamber, the movable valve is opened, and the container discharges the material. The batch testing standard of the samples to be tested can be realized by the static expansion method.

The invention discloses a civil aviation fire-fighting emergency rescue device and a use method thereof. The civil aviation fire-fighting emergency rescue device comprises a front-end user interface module, a data monitoring and preprocessing module, a risk assessment and decision module, a resource scheduling and execution module and a system management and detection module. The front-end user interface module is responsible for providing a graphical interface and supporting interaction between a user and the system, the data monitoring and preprocessing module is responsible for collecting data from various data sources and carrying out cleaning, denoising and preprocessing, and the risk assessment and decision making module is used for carrying out risk assessment and making a decision making strategy based on the preprocessed data and a real-time monitoring result. The resource scheduling and execution module is responsible for resource scheduling and execution, the system management and detection module is responsible for overall management and monitoring of the system, the possibility of fire occurrence is rapidly recognized through the time sequence analysis capability of LSTM and real-time anomaly detection of i Forest, comprehensive consideration can be carried out according to various factors by means of a Bayesian network and a decision tree, and the risk of fire disaster occurrence is reduced. And generating a risk assessment report.

The invention relates to an image processing method and device, electronic equipment and a storage medium. The method comprises the steps that exposure information of a current shooting scene is acquired in response to a detected shooting request, the shooting request comprises the exposure information, the exposure information comprises a plurality of exposure values, and the exposure values are used for representing the exposure degree of an exposure image; respectively acquiring an exposure image corresponding to each exposure value based on the exposure information; and performing fusion based on the multiple frames of exposure images to obtain an output image. According to the image output mode, the exposure images with different exposure degrees are requested to be shot according to one shooting request, the multiple frames of exposure images are obtained at a time, the time difference between the two adjacent frames of exposure images is reduced, the displacement between the two adjacent frames of exposure images is reduced, the problem of ghosting or ghosting during fusion of the multiple frames of exposure images is avoided, and the fusion efficiency of the multiple frames of exposure images is improved. And the quality of the fused output image is improved.

The utility model belongs to the technical field of commutator processing, and particularly relates to a sand polishing and bending all-in-one machine for commutator preparation, which comprises a working table, a storage column is connected to the top end of the working table, and a transmission assembly is mounted at the top end of the working table and located at the front end of the storage column. A grinding assembly, a bending assembly and a polishing assembly are sequentially connected to the position, located at the back end of the storage column, of the top end of the workbench from right to left, a supporting frame is erected and installed at the top end of the workbench, a second air cylinder is installed at the top end of the supporting frame, and the telescopic end of the second air cylinder is connected with a positioning column. Through the cooperation of the transmission assembly, the grinding assembly, the bending assembly and the polishing assembly, the commutator is conveyed on the storage column, so that the commutator passes through the grinding assembly, the bending assembly and the polishing assembly respectively, the time difference generated when equipment is replaced by the commutator is reduced, the machining efficiency of the commutator is improved, and the production cost is reduced. And the practicability of the sand throwing and bending all-in-one machine for commutator preparation is further improved.

The utility model discloses a gas system of a split type gas stove, the split type gas stove comprises a stove frame, a gas inlet and a gas outlet, the gas system comprises an ignition assembly and an adjusting assembly, the ignition assembly and the adjusting assembly are both arranged on the stove frame, and a switch assembly is arranged on the adjusting assembly. The adjusting assembly is suitable for rotating relative to the stove frame under the action of external force and driving the switch assembly to rotate, so that the switch assembly triggers the ignition assembly to conduct the ignition process, and the adjusting assembly is provided with a connecting channel suitable for being communicated with the gas inlet and the gas outlet. And the adjusting assembly is suitable for rotating and enabling the gas inlet and the gas outlet to be in a completely communicated, partially communicated or disconnected state. The fuel gas system of the split type gas furnace is convenient to operate, simple in structure and good in integration.

The present invention discloses a heterogeneous edge device collaboration method and system based on industrial Internet of Things, and relates to the technical field of edge device collaboration. The method steps include: constructing a heterogeneous edge device collaboration model, wherein the heterogeneous edge device collaboration model includes a slave edge node, a master edge node, and a deep reinforcement learning node; performing local training on the slave edge node to generate local parameters and training status; the master edge node generates global parameters based on local parameters; the deep reinforcement learning node feeds back training actions to the slave edge node based on the training status; the slave edge node performs communication iterative training of heterogeneous edge node collaboration based on global parameters and training actions, and completes heterogeneous edge node collaboration based on the communication iterative training results. Through the method of the present invention, the time difference between nodes in completing data processing can be effectively reduced, the accuracy and convergence speed of node training can be improved, the problem of node falling behind during node training can be solved, and industrial production can be carried out in an orderly and rapid manner.

The invention relates to the technical field of PCB design, and discloses a PCB with an overclocking characteristic, the PCB comprises a bare board, a BGA array, a graphics card golden finger, a differential line and an RAM golden finger, the differential line is arranged on the upper surface of the bare board, the BGA array, the graphics card golden finger and the RAM golden finger are all installed on the top of the bare board, and the BGA array is arranged on the upper surface of the bare board. The RAM golden finger is communicated with the BGA array through a single-sided board, the BGA array is communicated with the graphics card golden finger through the differential lines, the differential lines are obliquely arranged relative to the BGA array, the differential lines are parallel to each other, and the BGA array is used for being connected with a CPU (Central Processing Unit); the graphics card golden finger accords with a high-speed communication protocol and is used for connecting a graphics card; and the RAM golden finger is used for connecting a memory bank. According to the invention, crosstalk can be reduced, skew effect of the glass fiber is reduced, and parasitic capacitance and inductance of the residual end of the via hole are reduced, so that time difference is reduced, and overclocking failure is avoided.

The invention discloses a double-sided heat dissipation liquid cooling plate, a liquid inlet and a liquid outlet are formed in the end faces of the two ends of the double-sided heat dissipation liquid cooling plate, a heat dissipation pipe is wound in the double-sided heat dissipation liquid cooling plate, the heat dissipation pipe comprises a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe comprises a first pipe, a second pipe and a third pipe which are communicated with one another, the first end of the first pipe is communicated with the liquid inlet, and the second end of the second pipe is communicated with the liquid outlet; the pipe diameter of the third pipe is larger than that of the second pipe; the liquid outlet pipe comprises a fourth pipe, a fifth pipe, a sixth pipe and a seventh pipe which are communicated with one another, and the first end of the fourth pipe is communicated with the liquid outlet; the inlet of the first loop module is communicated with the second end of the second pipe, and the outlet is communicated with the second end of the fifth pipe; the inlet of the second loop module is communicated with the second end of the third pipe, and the outlet is communicated with the second end of the sixth pipe; an inlet of the third loop module is communicated with an outlet of the second loop module and the second end of the sixth pipe, an outlet of the third loop module is communicated with the second end of the seventh pipe, and the diameter of the inlet of the third loop module is larger than that of the sixth pipe.

The invention discloses a time-of-flight mass analysis device, which comprises an ionization acceleration region for generating ions, screening the ions according to the initial energy and initial position of the ions and accelerating the ions to move towards a field-free region; the field-free region is used for providing free motion space with enough distance for ions; the reflection area is located at the tail end of the field-free area and used for reflecting ions to the signal detection area; and the signal detection area is used for detecting ion types. The ionization acceleration area of the device adopts a voltage driving mode of repulsion pulses and introduction of the pulses to reduce the initial space dispersion and initial energy dispersion of ions, meanwhile, the ionization probability of molecules is increased, and the resolution and sensitivity of time-of-flight mass analysis can be improved.

This application discloses a signal transmission method and related equipment for signal enhancement when there are significant distance differences between a terminal device and different network devices. The method includes: determining a timing deviation between the enhancing network device and the main network device; the timing deviation is used by the main network device to send the target signal to the terminal device at intervals before or after the enhancing network device sends the target signal, thereby enhancing the target signal.

The on-site calibration device of the tensile and compressive load test system of a flight control simulator of the present invention comprises a structural frame, a loading mechanism, a standard measuring unit, a host computer and a fine-tuning mechanism; the loading mechanism, the standard measuring unit and the calibrated force sensor are connected in sequence and then installed on the structural frame; the fine-tuning mechanism supports the loading mechanism, and the loading mechanism, the standard measuring unit and the calibrated force sensor are placed in the same straight line by fine-tuning the position of the loading mechanism; the standard measuring unit is wirelessly connected to the host computer; and the calibrated force sensor is connected to the flight control simulator.

The utility model discloses an efficient transmission device of a roller kiln and the roller kiln, and relates to the technical field of roller kilns, the transmission device comprises a base frame, a conveyor belt and a backstop assembly; the conveying belt comprises an auxiliary section and a speed changing section. The auxiliary section comprises a plurality of transmission shafts arranged in the conveying direction of the conveying belt, a clutch and a first driver. Under the condition that the products in the same row are at least partially located at the speed change section, the transmission speed of the speed change section is higher than that of the auxiliary section, so that the products on the speed change section are driven to move to the tail end of the speed change section in an accelerated manner; due to the fact that part of products are located on the speed changing section and the auxiliary section at the same time, the rotating speed of the corresponding first transmission roller is larger than that of the transmission shaft, the clutch controls the first driver and the first transmission roller to be disconnected, the first driver and the first transmission roller are disconnected, and the rotating speed of the first transmission roller can be increased along with the products; friction between the first transmission roller and the product is reduced, so that the product arrives at the baffle quickly.

The embodiments of this specification disclose a distributed computing load balancing method and system. The method includes receiving multiple computing tasks that can be executed in parallel divided from a target task, reading the code of the computing task; identifying the database query statement in the code, executing the database query statement, and obtaining result data; obtaining the estimated load of the computing task according to the result data; reading the node load of the distributed computing node, the node load includes the current estimated waiting time in the queue, memory space occupancy and CPU resource occupancy; according to the estimated load and the node load, obtaining all the distributed computing nodes adapted for each computing task, and the estimated completion time of the computing task; obtaining the designated distributed computing node of each computing task according to the estimated completion time, so that the time difference of the estimated completion time of the distributed computing node to complete all the designated computing tasks is minimized.

The application discloses a magnetron sputtering coating machine for large-area uniform coating, which comprises a machine shell, the upper surface of the machine shell is fixedly provided with guide rods, the outer surfaces of the two groups of guide rods are slidingly provided with sealing covers, the lower surfaces of the sealing covers are fixedly connected with corrugated washers, so that the sealing covers can block the upper ends of the sealing cavities through the corrugated washers by sliding along the guide rods, the sealing cavities are formed in the machine shell by being fixedly provided with two groups of sealing plates, the magnetron sputtering mechanisms are rotatably arranged in the sealing covers, so that the sealing covers can drive the magnetron sputtering mechanisms to be in communication with the sealing cavities while being perpendicular to the supporting mechanisms. Through the design of the magnetron sputtering mechanisms and the supporting mechanisms, the sealing cavities can be opened and closed and the supporting mechanisms can be lifted and lowered in the linear module linkage, and the multi-dimensional movement of the magnetron sputtering mechanisms and the cooperation of the vacuum and gas systems are combined, so that the efficient and uniform coating of large-area substrates is finally realized.

The battery pack side beam structure for reducing the sand hole defect comprises a side beam, a connecting face is arranged on one side of the side beam, a plurality of threaded connecting columns are arranged on the connecting face, the threaded connecting columns protrude outwards, and protruding structures are arranged at the roots of the threaded connecting columns. Compared with the prior art, the battery pack side beam structure for reducing the sand hole defect has the advantages that the protruding structure is arranged at the root of the threaded connecting column, the speed of filling the threaded connecting column with molten metal can be reduced during die-casting forming, the molten metal can flow stably, sand holes in the threaded connecting column are reduced, and the service life of the battery pack side beam structure is prolonged. And the mechanical performance of the threaded connection column is improved. In addition, the invention further provides a die-casting die which is used for die-casting forming of the battery pack side beam structure used for reducing the sand hole defects, the die-casting die is provided with a slag ladle structure to store part of gas in molten metal, and therefore the generation of the sand hole defects in the threaded connection column after die-casting forming is further reduced.

The invention provides a static expansion method vacuum standard device. The static expansion method vacuum standard device comprises a first-level standard chamber and a second-level standard chamber which are connected, the plurality of sample chambers are respectively connected with the secondary standard chamber through sealing valves, and one end of each sample chamber is provided with a movable valve; the air exhaust system is used for vacuumizing the primary standard chamber, the secondary standard chamber and the sample chamber; the gas supply system is used for supplying gas to the primary standard chamber, the secondary standard chamber and the sample chamber; the accommodating parts correspond to the sample chambers, and each accommodating part is provided with a plurality of accommodating areas for accommodating a plurality of samples to be detected; the containing part is used for containing a plurality of samples to be detected and feeding the samples to the corresponding sample chambers to detect the standard, after the standard is completed, the sealing valve is closed, after the gas supply system supplies gas to the sample chambers for re-pressing, the movable valve is opened, and the containing part is used for discharging. Batch detection standards can be carried out on to-be-detected samples through a static expansion method.

The invention relates to the technical field of medical apparatus and instruments, and particularly discloses a single-stage venous cannula capable of adjusting infusion amount and a flow rate control method of the single-stage venous cannula. The adjusting mechanism comprises an adjusting seat, a screw rod and a driving assembly, the outer side of the insertion pipe is sleeved with the adjusting seat, the screw rod is in threaded connection with the interior of the adjusting seat, the end of the screw rod is used for abutting against the insertion pipe, and the driving assembly is used for driving the screw rod to rotate; the driving assembly comprises a connecting column, an inserting rod and a first elastic piece, the connecting column is connected to the screw rod, the inserting rod is movably inserted into the adjusting seat, an inserting piece is arranged on the inserting rod, and an inserting hole for the inserting piece to be inserted in is formed in the connecting column. After the adjustment process is completed, the connection between the insertion rod and the screw rod can be disconnected, so that the situation that the set flow speed is accidentally changed due to the fact that a patient touches by mistake, clothes rub or the transfer process can be effectively prevented, and infusion safety is guaranteed.

The intelligent temperature control traditional Chinese medicine decoction piece drying box comprises a machine body and a vacuum box, the vacuum box is arranged in the machine body, and a box cover of the vacuum box is movably connected to the upper portion of the machine body. The utility model has the advantages that the traditional Chinese medicine decoction pieces in the cage body can circularly turn over dynamically, so that the contact area between the surfaces of the traditional Chinese medicine decoction pieces and air can be increased, the speed of vacuum drying and electric heating drying is increased, and the contact efficiency with a drying medium (such as hot air or a vacuum environment) is improved. And due to circulating overturning of the cage body, it is guaranteed that the traditional Chinese medicine decoction pieces are evenly heated and evenly evaporated in the drying process. Therefore, the problem of local overheating or uneven drying can be avoided, and the drying quality is improved. Due to the fact that the traditional Chinese medicine decoction pieces can be evenly overturned in the cage body, the time difference of the decoction pieces at different positions in the drying process is reduced, and the overall drying effect is more consistent.

The utility model relates to a stator iron core, a stator assembly, a motor, a driving assembly and a vehicle, the stator iron core comprises an iron core body, a linear flow channel part and a snake-shaped flow channel part are formed on the iron core body, the linear flow channel part is provided with a first liquid inlet in a first end of the iron core body, the linear flow channel part is provided with a first liquid outlet in a second end of the iron core body, and the snake-shaped flow channel part is provided with a second liquid outlet in a second end of the iron core body. The S-shaped flow channel part is provided with a second liquid inlet in the first end of the iron core body, the S-shaped flow channel part is provided with a second liquid outlet in the second end of the iron core body, the linear flow channel part and the S-shaped flow channel part are mutually independent, and the linear flow channel part extends in the axial direction of the iron core body and penetrates through the iron core body. According to the stator iron core, the cooling time difference between the stator winding at the first end of the iron core body and the stator winding at the second end of the iron core body can be shortened, and the cooling effect on the stator windings at the two ends of the iron core body is guaranteed.

The cargo platform synchronous anti-falling mechanism and method thereof described in the application belong to the field of intelligent logistics and storage. The brake wire linkage mechanism is proposed to enable the wedge-shaped block steel wire lifting point to release the brake wire linkage through the spring when the rope is broken, so as to achieve the purpose of active and synchronous clamping rail braking of the safety tongs on both sides of the cargo platform. The cargo platform synchronous anti-falling mechanism comprises a steel wire rope connected in a closed loop between the upper pulley and the speed limiter on the top and bottom of the stand column, and a group of speed limiter levers fixedly connected on the steel wire rope and vertically running with the steel wire rope, the side end of the speed limiter lever being fixedly connected to the cargo platform and synchronously lifting with the cargo platform; two groups of wedge-shaped block steel wire lifting points and safety tongs are symmetrically arranged on both sides of the cargo platform; a group of brake wire communication assemblies are arranged at the center of the cargo platform and connected with a group of speed limiter levers, two groups of wedge-shaped block steel wire lifting points and two groups of safety tongs through brake wires.

The present application provides a data processing method and system, a cloud server and a vehicle, including: receiving a data packet transmitted wirelessly by a vehicle, and decrypting the data packet; wherein the data packet is generated by encapsulating and encrypting traffic data in a traffic road area; performing abnormal clustering of data points based on the decryption result of the data packet, and generating an abnormal area based on the abnormal clustering result; wherein the data point includes the geographic location coordinate information of the data packet; based on the geographic location coordinate information of the vehicle, pushing warning information to vehicles within a preset distance range of the abnormal area. The present application monitors traffic data in real time, and uses wireless transmission technology to realize timely reporting and sharing of abnormal information, shortening the time difference from detection to response, and timely pushing warning information through the cloud server, which enables drivers to take risk avoidance measures in advance and reduce the risk of traffic accidents caused by traffic facility failures.

The present invention provides a post-casting strip pouring support system and a post-casting strip pouring construction method, which belong to the field of track engineering technology. The post-casting strip pouring support system includes: a limiting side form, a plug plate and a support assembly. Technical effect: before pouring the self-compacting concrete filling layer, a plug plate is set on the post-casting strip to block the previous self-compacting concrete filling layer, and the post-casting strip forms a connecting structure with the lower space of the next track plate. When pouring the post-casting strip, the pouring of the self-compacting concrete filling layer is realized synchronously, and there is no need to wait until the self-compacting concrete filling layer reaches the strength requirement before pouring, which reduces the time difference between the two, improves the construction efficiency, and can form a continuous flow operation; at the same time, the limiting side form and the support assembly are used to realize the position fixing and position adjustment of the plug plate, and the support assembly can avoid the steel bars between adjacent track plates, and has strong operability, avoiding the problem of difficult removal of traditional end molds, and is easy to disassemble and assemble, with a high turnover rate, which reduces the difficulty of construction.

The invention relates to the field of petrochemical engineering, and particularly discloses a detection device for detecting petroleum density. By arranging the position adjusting assembly, the flushing assembly, the sewage discharging assembly, the reading reading assembly and the cleaning assembly, after a user measures the density of a sample in the placing barrel through the reading reading assembly, the placing barrel can be flushed through the flushing assembly, and cleaning wastewater in the placing barrel is discharged through the sewage discharging assembly; after the position of the flushing assembly is adjusted through the position adjusting assembly, the flushing assembly and the cleaning assembly are matched to achieve rapid cleaning of the densimeter, the time difference between multiple times of sample density measurement is effectively shortened by shortening the cleaning time of the measuring instrument, and the trouble that an operator manually cleans the measuring instrument is avoided; and the measurement efficiency of various samples is effectively improved.

This application discloses a method and system for synchronous measurement of three-dimensional displacement field of transparent soil based on binocular vision. This application improves upon current displacement field measurements that require full-field matching. First, a local comparison window is defined for the current speckle grid. The similarity of the speckle grid in the local comparison window at time t+1 is compared with the current speckle grid to determine its position. Then, the displacement vector of the speckle grid can be determined by directly assigning the vectors of other speckle grids with similar speckle density within the local comparison window to this displacement vector. Thus, the displacement vectors of multiple speckle grids can be obtained after calculating the displacement vector of only one speckle grid, effectively reducing the amount of data processing.

The embodiments of the present application provide a data verification method, device, electronic device and computer-readable storage medium, which relate to the field of data processing technology. The method includes: the embodiments of the present application determine the target transaction by migrating from the first database to the second database, determine the transaction identifier and the first execution result of the target transaction; obtain the target snapshot in the second database that has an association relationship with the transaction identifier of the target transaction, and determine the second execution result corresponding to the first execution result from the target snapshot; determine the first verification result obtained after consistency verification of the first execution result and the second execution result. The embodiments of the present application realize that in the process of incremental data migration, the data events of each incremental data that have been migrated to the downstream database are verified, which, on the one hand, enables accurate verification of the incremental data, and on the other hand, effectively shortens the time difference between the migration and verification of the incremental data.