104 results about "Time codes" patented technology

The invention discloses a visibility regression prediction method based on multi-modal transfer learning and time coding, and relates to the technical field of artificial intelligence. The method comprises the following steps: S1, dividing a data set in different periods according to illumination characteristics, and splitting each period into a training set, a verification set and a test set; s2, preprocessing the data set; s3, constructing an initial model containing a pre-training deep learning network, a time coding module and a multi-layer perceptron regression head; s4, extracting image visual features and time feature vectors; s5, fusing the features and inputting the features into a regression head for prediction; s6, carrying out scheduling training by using layered parameter freezing, an AdamW optimizer and a dual learning rate, and combining with a mixed early stop strategy until convergence; and S7, evaluating the test set to determine a final model. According to the method, complementarity of image and time information is mined, high-precision prediction is realized, generalization is good under different illumination conditions, a layering strategy and an optimization mechanism guarantee stable and efficient training, a multilayer perceptron combination technology enhances expression, and overfitting is effectively prevented.

The invention discloses a real-scene three-dimensional system geographic entity space-time coding method. According to the method, the dynamic sensing capability of the geographic entity state is remarkably improved through an evolution prediction mechanism. Traditional coding mostly focuses on current state records, but the method depends on a state transition probability model of time decay weighting, can accurately capture recent change trends of entities, generate evolution prediction codes and dynamically bind the evolution prediction codes with space codes and time codes, so that the coding can not only reflect current positions, time and attributes of the entities, but also can reflect current state records of the entities. And the state trend of 1-3 months in the future can be pre-expressed. According to the method, the subsequent stage of a construction road can be pre-judged in advance, an emergency department can quickly recognize potential risk entities, the problem that geographic information lags behind actual change is effectively solved, more prospective data support is provided for collaborative decision making of multiple departments, the suitability and long-term reliability of coding in multiple scenes are enhanced through full-process closed-loop design, and the method is suitable for popularization and application. And a stable basic support is provided for efficient application of live-action three-dimensional geographic information.

The invention discloses a video target tracking system and method combined with deep learning, and relates to the technical field of computer vision, and the method comprises the following steps: obtaining video frame sequence data of each monitoring device; performing segmentation processing on the time coding sequence of the video frame sequence data to obtain track fragments of corresponding monitoring equipment; and extracting a time coding subsequence of a track fragment pair formed by any two track fragments, and carrying out feature analysis on the time coding subsequence to obtain a multi-dimensional matching confidence score of each track fragment pair. According to the scheme, a shielding time window detection mechanism is introduced, shielding influences are actively recognized and quantified, the problem of time coding distortion caused by shielding in a multi-monitoring-device environment is solved, a similarity calculation result can be dynamically corrected, mismatching caused by local shielding is avoided, and the accuracy of time coding is improved by combining motion continuity constraint and a nonlinear fusion strategy. The track matching robustness in a complex shielding scene is effectively improved, and a high-confidence matching reference is provided for subsequent time axis unification.

The invention provides a space-time fusion coding method and a data relation generation method and system, and is applied to the technical field of physical world-oriented multi-source heterogeneous data organization management. Space information of a target data object is mapped to a geographic space subdivision grid coding system to generate a space code; the method comprises the following steps: standardizing time information according to preset time granularity (such as year, month, day and hour), mapping the time information to a layered time coding system to generate a time code, and fusing a space code, the time code and object identification information according to a preset rule to generate a unique space-time fusion code; and finally, the space-time fusion codes and attribute information are bound to form standardized data records, data objects of different sources and different formats are mapped to a unified space-time coding system, data islands are broken, and a data foundation is laid for constructing a unified space-time relation network.

The invention provides a product traceability method and system based on a space-time code, a terminal and a storage medium, and belongs to the technical field of product traceability, and the method comprises the steps: generating a commodity code of a raw material; for each subsequent product processing link, all the commodity codes of the previous upstream link are scanned and analyzed, production subject identification information associated with each commodity code is acquired, and the validity of the production subject identification information is verified; when the production subject identification information is valid, analyzing a space-time code from each commodity code of a previous upstream link as a parent space-time code of a product of a current link; generating a commodity code of the current link product in combination with the space-time code of the current link product and the product identification information; and obtaining a traceability result. According to the invention, the product is identified by using the corresponding space-time code and the product identifier in each production link, and when the commodity code of the final product is scanned, the traceability can be carried out without manual intervention, so that the product traceability efficiency is effectively improved.

The invention discloses a live broadcast wonderful instant slow playing and playback method and device, electronic equipment and a product, and the method comprises the steps: receiving a live broadcast stream in real time, the live broadcast stream having a live broadcast linear time code; encoding the received live stream by using a first linear time code and caching the encoded live stream in a memory to generate a live cache pool, and encoding the received live stream by using a second linear time code and storing the encoded live stream to form a live recording file; in response to the wonderful instant slow playing or playback request, obtaining a playing mode and a target time code of a wonderful instant starting position; and according to a comparison result of the target time code and the first linear time code of the start frame of the live broadcast cache pool, selecting the live broadcast cache pool or the live broadcast recording file, and executing a corresponding playing operation according to the playing mode. According to the method and the device, dynamic seamless switching from live broadcast recording to the live broadcast cache pool can be realized, and video playing from the live broadcast cache pool is preferentially realized, so that the video playing fluency and interactivity are improved, the delay of real-time playback is reduced, and the watching experience is improved.

The invention discloses a real-time code review processing method and system and related equipment, relates to the technical field of code review, and aims at obtaining model context protocol link information in real time, enabling a machine learning model to better understand the intention and context relationship of codes and improving the efficiency of code review. Information such as model context protocol link information, code intention and context relation is input into a machine learning model to be analyzed, so that the specific data performance, the overall code structure and the specific function of the code in a network are dynamically understood; potential problems and optimization points are identified on the basis of understanding of specific data performance, overall code structure and specific functions of codes in a network, and dynamic analysis and model improvement can be performed according to factors such as specific functions and calling paths of the codes on the basis of a model context protocol, so that comprehensiveness and accuracy of code review are improved.

The application discloses a kind of unsupervised time series anomaly detection methods, the method includes obtaining historical time series data, according to the correlation of historical time series data and target screening characteristic variable, according to characteristic variable constructs instance anomaly detection task historical time series data;To instance anomaly detection task historical time series data relevant field adopts rolling statistical characteristic strategy, constructs instance anomaly detection task historical time series data model;Instance anomaly detection task historical time series data model is input into self-encoding framework after batch processing, after three times coding, three times decoding obtains reconstructed instance anomaly detection task historical time series data module;Instance anomaly detection task historical time series data module is compared and analyzed with reconstructed instance anomaly detection task historical time series data module, obtains loss time series dataset;Decision tree model is constructed, and each sample of loss time series dataset is scored, and final anomaly detection result is obtained according to score.The application can improve the ability and efficiency of time series data anomaly identification.

The invention discloses a monitoring video delay sweep generation method based on scene change self-adaptive frame extraction, and belongs to the technical field of video monitoring and streaming media processing. The method comprises the following steps: acquiring a sweep strategy containing a time period, a reference interval, a difference threshold value, a forced retention period, a window length and a quality threshold value; receiving a real-time code stream or reading a storage side key frame intermediate file; calculating an inter-frame difference degree by using a brightness channel of a multi-scale structure similarity algorithm, determining a frame extraction interval in combination with a static duration, and marking candidate frames; performing quality detection according to definition, brightness, contrast, stripes and noise, and rejecting unqualified products; when a forced period is reached, a bottom frame is reserved; and performing segmented coding according to a time window, and performing assembly output at the end of a time period. According to the method, online and offline processing links are unified, key information is reserved, and redundancy and time delay are reduced.

The embodiment of the invention discloses a power system information acquisition and control method and terminal equipment. The method comprises the following steps: collecting multi-modal data; the multi-modal data comprises system-level data and region-level data; extracting input features from the multi-modal data; performing space-time coding on the input features by using an artificial intelligence AI model to obtain time-dependent features and spatial features; processing the time-dependent features and the spatial features by using a double-layer attention mechanism to obtain at least two levels of weights; according to real-time power grid data in the multi-modal data, two-stage weights are dynamically adjusted, and transient event information is output; obtaining a first configuration instruction according to the adjusted two-stage weight and the transient event information; optimizing the first configuration instruction based on the region-level data to obtain a second configuration instruction; the second configuration instruction comprises an acquisition instruction and / or a resource scheduling instruction; the resource scheduling instruction is used for scheduling software and hardware resources of the terminal equipment.

The application provides an edge hot object cache admission method, relates to the field of information technology, and constructs a time sequence model, the time sequence model includes feature mapping, multi-object time coding, LSTM and attention network, the time sequence model is supervised training, and the time sequence model that has completed training is obtained, wherein the application realizes position coding of a request sequence through a multi-object time coding method, so that the algorithm can learn two-level sequence characteristics of an access sequence, and the learning ability of the model is significantly improved. The application sets a buffer, inserts a corresponding target request into a hot object cache, creates a shadow request object and inserts it into the hot object cache, then calculates the corresponding rewards respectively, and based on the state, admission decision and reward, the trained time sequence model is subjected to semi-online reinforcement learning, so that the model can maximize the cumulative reward for a long time, and the hit rate and other indicators of the hot object cache are significantly improved.

The application discloses a multi-view video synchronization and target association method based on space-time coding, comprising the following steps: step one, multi-view video acquisition; step two, space-time coding generation; step three, inter-frame synchronization based on space-time coding; step four, cross-view target detection; step five, construction of a space-time association cost matrix; step six, global target association; and step seven, output of an association track. The application uses space-time coding to replace absolute time stamps, effectively resists differences in frame rates of different cameras and time drift problems, and reduces the requirement of the system on hardware synchronization; the space coordinate information is integrated into the coding, so that the target association no longer simply depends on the appearance, and the association robustness in complex scenes such as light change and dramatic view change is greatly improved; through coding matching and global optimization, the video synchronization and target association tasks can be completed at the same time, and the calculation efficiency and system integration are improved.

The invention discloses an internet resource long-term storage management and storage system, which comprises a space-time coding layer which is based on an FPGA (Field Programmable Gate Array) main control chip, comprises a parallelized tensor processing unit and is used for converting digital resources and metadata and context relationships thereof into a space-time coding body with a time self-description capability; the storage unit is used for receiving the space-time coding body from the space-time coding layer and permanently solidifying the space-time coding body in a tamper-resistant physical form; and the four-dimensional continuation control layer is used for dynamically managing the integrity, readability and authenticity of resources in the whole life cycle through an autonomous evolution algorithm and a distributed verification network. Through collaborative innovation of a space-time coding body (an information layer), a holographic cold memory (a physical layer) and a continuation control network (a management and control layer), the basic challenges of long-term storage of Internet resources in the aspects of authenticity, integrity, availability, safety, cost, technical dependence and the like are systematically handled.

The application relates to the technical field of satellite data processing, and provides a satellite data simulation generation method, system, medium and equipment, which comprises the following steps: parsing an XML configuration file used for defining satellite transmission frames, virtual channel data units, user frames / space packets and load fields to obtain a memory protocol object tree; recursively traversing the memory protocol object tree according to an output period to generate data frames of each layer, writing a configuration value into a fixed value field, increasing a count field by a step, converting a time field into a time code specified by a satellite protocol, continuously intercepting real load data according to a file offset modulo and a tail wrap mode for an external data field, recursively assembling a nested subframe after inheriting a parent frame context, and performing length alignment, check sum output. The protocol structure, dynamic fields and real load injection rules of satellite simulation data are configured, which is different from a scheme only facing communication coding and decoding or protocol packet assembly and analysis, and can generate continuous and high-fidelity satellite simulation data streams.

The present application is a software management method and system, which includes a decoder receiving a key and decoding the key by a de-obfuscation method to obtain a product code, a time code and a control code. A processor accesses product standard parameters, time standard parameters and control standard parameters in a memory, and provides software information to a user when the product code, the time code and the control code respectively conform to the product standard parameters, the time standard parameters and the control standard parameters. The user can download and use the software according to the software information. The present application can solve the problem that software is abused without restriction, and software vendors cannot effectively control and protect the software.

The invention particularly relates to a telephone time service monitoring device and method, a telephone receiving module is used for receiving a telephone time service signal from a telephone time service server and analyzing and outputting a time code and a 1PPS signal, and a time measuring module is used for receiving and selecting a satellite signal receiver, an external time code and the 1PPS signal as main and standby time references; a time code and a 1PPS signal input by the telephone signal receiving module are measured, time difference information is output, and the main control unit outputs the time difference and operation state information through a display screen and a network. According to the invention, the operation state of the telephone time service server and the signal transmission state of the telephone line can be effectively monitored, and the method is of great significance to guarantee the reliable operation of the telephone time service.

The invention belongs to the technical field of quantum communication, and particularly relates to a quantum voting method based on a quantum detectable Byzantine protocol. Comprising the steps of initializing a system and performing consistency negotiation; the voters generate local masks and fuse the votes to obtain phase parameters; constructing a time slot sequence, segmenting the time slot sequence and distributing the segmented time slot sequence to voters; voters select data, reference and trap slots from corresponding time periods and prepare quantum states of the corresponding slots; the time slot sequence is transmitted along a loop, each voter executes phase loading according to the phase parameter in the own time period, and an output time coding quantum state is obtained after transmission for one week; calculating the detection probability according to the trap slot position, if the detection probability exceeds a preset threshold value, stopping, otherwise, continuing; each voter carries out accumulative phase estimation on the output time coding quantum state according to the data slot position and recovers the final total vote number; verifying the final total number of votes to ensure that honest nodes obtain consistent numbers of votes; according to the method, the defects that a traditional protocol depends on a trusted center and lacks fault-tolerant capability are overcome, and the security and practicability of the quantum voting protocol are improved.

The application discloses a kind of information cascade prediction system and method based on the enhanced hawkes process of Transformer, including user embedding module, global dependence module, local dependence module, intensity function acquisition module and popularity prediction module, first, obtain user position-wise embedding and time coding as user embedding, then in the perspective of topological structure, introduce path perception hypothesis, and design two layers of attention layer from two angles of global embedding and local mode, parameterize the intensity function of hawkes process, and combine hawkes process, global embedding and local mode, learn the time and topological random characteristics coupled in information cascade diffusion process, to carry out popularity prediction;The application expands the traditional hawkes process, and effectively obtains knowledge from continuous time domain, improves the accuracy of popularity prediction.

The invention discloses a signal recovery method assisted by spatial modulation and space-time codes, which comprises the following steps of: 1, performing spatial modulation on information bit stream groups according to the number of time slots and the number of carriers to obtain spatial modulation symbols; 2, mapping the spatial modulation symbols into a space-time coding structure; 3, performing orthogonal time-frequency-space multi-carrier modulation on the spatial modulation symbols with the same transmission period, and transmitting the data symbols on a plurality of transmitting antennas respectively; and step 4, carrying out signal detection recovery on the transmission data symbols obtained in the step 3 based on the special sparsity of the signal structure. The method is used for recovering various source end signals which cannot be directly measured, high transmission rate and high diversity gain are realized, and the problems of poor signal detection performance and relatively high calculation complexity in the signal recovery process of a multi-antenna multi-carrier system are solved.

The present disclosure provides a data collection method, device, equipment and storage medium, relates to the technical field of data collection, in particular to the technical field of such as the point-in-time configuration and application monitoring, and can be applied to the scene of client data analysis and client data monitoring. The specific implementation scheme comprises the following steps: determining target point-in-time configuration data corresponding to a target method from point-in-time configuration data; dynamically intercepting the target method, and starting to execute the target method after inserting the target point-in-time configuration data; the target point-in-time configuration data comprises target point-in-time code corresponding to the target method, the target point-in-time code comprises a target data collection method and a target parameter acquisition method, the target data collection method is used for acquiring application data corresponding to the target method, and the target parameter acquisition method is used for acquiring parameter information of the target method; and according to the target point-in-time configuration data, the application data corresponding to the target method is collected. The present disclosure can flexibly adjust the data collection strategy according to the data collection requirement.

The invention relates to the technical field of satellite time service, in particular to an electric power communication clock verification method, system and device based on Beidou B2b and a medium. A main clock obtains local time according to time zone setting, receives Beidou signals and obtains observation data, broadcast ephemeris and Beidou signal correction information based on the received Beidou signals; extracting a satellite orbit and a clock error correction number based on the Beidou signal correction information, correcting a broadcast ephemeris based on the extracted clock error correction number, obtaining a precise satellite orbit and a clock error, and performing data preprocessing on observation data; constructing an observation equation based on the preprocessed observation data, the precise satellite orbit and the clock error, and obtaining the deviation between the local time of the master clock and the standard time through a parameter estimation method; and based on the obtained deviation between the local time of the master clock and the standard time, the master clock sends the time code to the power system equipment, and the power equipment performs time verification according to the time code, so that the time consistency and the operation stability of the power communication system are improved.

The invention provides a music time coding method for artificial neural network modeling. The method aims at the coding requirement of music beat time, molecules are decomposed according to a fixed denominator for multi-bit independent classification coding, and the method comprises the following steps: setting the fixed denominator as a composite number and decomposing the composite number into a prime factor combination; the molecules are mapped into vectors, the value range of each bit is determined by a cardinal number of a prime factor combination, and the vectors are converted into one-hot coding sub-vectors with redundant components removed. The technical scheme of the invention solves the problem that the traditional mean square error (MSE) ignores the internal correlation of scores and has high sparsity in the topology recognition task of an optical music recognition system (OMR), and compared with a traditional coding method adopting floating point numerical output and a mean square error loss function under the conditions of the same data set, model architecture and training hyper-parameters, the method provided by the invention has the advantages that the coding efficiency is greatly improved; according to the method, the comprehensive error index is reduced by about 21%, and the model precision and the training efficiency are improved.

The utility model discloses a multifunctional time code synchronizer, which comprises an MCU (Microprogrammed Control Unit) module, a control panel connected with the MCU module, a power supply module connected with the MCU module, a plurality of interface modules and an interface circuit connected between the interface modules and the MCU module, the interface module at least comprises an MIDI IN interface and an MIDI OUT interface which can be used for transmitting an MIDI time code, an LTC IN interface and an LTC OUT interface which can be used for transmitting an SMPTE LTC time code, and an Ethernet port which can be used for transmitting an RTP MIDI time code and an ArtTimecode time code, and the MCU module can transmit and synchronize corresponding time code information through an interface circuit connected with the MIDI IN interface, the MIDI OUT interface, the LTC IN interface, the LTC OUT interface and the Ethernet port. Compared with the prior art, the device has the synchronization of the MIDI time code and the SMPTE LTC time code, and also has the network time codes of the ArtTimecode and the RTP-MIDI, so that the LTC time code can be transmitted more flexibly.

The present application relates to a kind of aerospace remote sensing instrument imaging time acquisition and corresponding method, in the method, probe head software sends time request pulse to main control software at exposure starting moment, main control software records the system time code of receiving time request pulse moment, the time is called time code, main control software adopts first-in first-out principle, saves the time code of last n times, and the group of time code is sent to probe head software through the command frame of next cycle, probe head software will last n times of time code, imaging command, parameter, remote sensing data together with package, download.This imaging time acquisition and corresponding method produces time error, which is determined by the accuracy parameter of crystal oscillator, and the software does not produce error, so under the condition that the accuracy parameter of crystal oscillator is better than the requirement of time error, the method can obtain imaging time with high precision and assist data corresponding in later period.

The invention discloses a material processing method and a related device, and relates to the technical field of video editing, and the method comprises the steps: obtaining a target material, and determining a reference material associated with the target material; obtaining a key frame of a target time code from the target material, searching a target image matched with the key frame in the reference material, determining a first time code corresponding to the target image, and calculating a difference value between the first time code and the target time code to obtain a first difference value; obtaining the audio of the target time code from the target material, searching a target audio matched with the audio of the target time code in the reference material, determining a second time code corresponding to the target audio, and calculating the difference value between the second time code and the target time code to obtain a second difference value; and when the difference value between the first difference value and the second difference value is smaller than a preset difference value, adding the first difference value and the target time code to obtain a first correction time code, and processing the target material based on the first correction time code. According to the invention, material time-code synchronization can be realized.

The invention provides an edge hot object cache admission method, and relates to the technical field of information, the edge hot object cache admission method constructs a time sequence model, the time sequence model comprises feature mapping, multi-object time coding, LSTM and an attention network, the time sequence model is subjected to supervised training to obtain a trained time sequence model, according to the method, the position coding of the request sequence is realized through a multi-object time coding method, so that the algorithm can learn the two-stage sequence characteristics of the access sequence, and the learning ability of the model is remarkably improved. According to the method, a buffer area is set, a target request corresponding to admission is inserted into a hot object cache, a shadow request object is created and inserted into the hot object cache, then corresponding rewards are calculated, semi-online reinforcement learning is carried out on a trained time sequence model based on the state, admission decision and rewards, and through a model agent decision-making process, the time sequence model is obtained. The model can stably accumulate rewards to the maximum for a long time, and indexes such as the hit rate of hot object caching are remarkably improved.

A terminal bidirectional verification method based on low-frequency time code time service technology, relying on low-frequency time code time service technology, through receiving the BPC time service device of the national time service center, obtaining standard time information, and then through the trusted time and space platform and the time and position information processing end, ensuring that the time information received by the terminal device is absolutely correct, in addition, through the reverse verification mechanism, avoiding the tampering of time and position information in the transmission process, meeting the requirements of source credibility, use credibility, information traceability and time propagation authentication.

The application discloses a radio frequency computing method and system based on a time coding metasurface. The metasurface is composed of a metal patch layer, an F4B dielectric layer and a metal backplate layer. By applying a specific periodic control signal, the metasurface can modulate the electromagnetic information of the incident wave. The baseband signal of the incident electromagnetic wave represents a time function that needs to be operated, and the control signal of the metasurface corresponds to the coding sequence of the required operation. After the electromagnetic wave interacts with the metasurface, the reflected wave will carry the information of the operation result, and the Fourier transform and convolution operation in the radio frequency domain can be realized. The application eliminates the conversion of the radio frequency signal, and directly completes the calculation in the radio frequency domain, which can effectively reduce the calculation delay and energy consumption. At the same time, since the traditional radio frequency link is omitted, the radio frequency calculator constructed by the metasurface has low hardware complexity and cost, a simple structure and is suitable for application fields of communication, radar, sensing and the like under the premise of ensuring the calculation accuracy.

The invention provides an agricultural plot-oriented space-time coding construction method and device, and belongs to the crossing field of space geocoding technology and agricultural informationization, and the method comprises the steps: receiving external input data, including agricultural plot vector data, administrative division vector and official coding / updating division data, and remote sensing image / updating image data; determining a core space coordinate point of the land parcel based on the agricultural land parcel vector and the fourth-level and eighth-level Beidou two-dimensional grid construction data; establishing an administrative and grid reference framework of the plot based on the administrative division vector and official coding / updating division data; based on an agricultural information inversion result and a three-tone classification system, time, types and extension attributes of the land parcels are extracted; on the basis of the constructed accurate positioning layer, the spatial reference layer and the attribute information layer data, performing calibration layer code construction, and generating a check code; and integrating all hierarchical codes, completing complete code construction, and outputting a final space-time code.

The application belongs to the technical field of asynchronous comparison, and provides a time code comparison method and system for a multi-station multi-channel scene monitoring receiver, which comprises the following steps: receiving time code data demodulated by each channel, and setting a data update flag corresponding to any broadcasting station to be valid when the latest time code data of the broadcasting station is received; traversing all time code data in the cache, comparing the decoding time value of each channel with a reference time, and determining the comparison result of each channel according to a preset tolerance threshold; based on the comparison result of each channel, if the comparison result of at least one channel is correct, it is determined that the state of the target broadcasting station is normal; according to the broadcasting station identifier, it is determined whether the target broadcasting station is a main broadcasting station, and if not, the state of the broadcasting station is compared separately. The application ensures the synchronization of time data at both comparison times, avoids frequent flickering of the state due to slight time misalignment, and makes the monitoring result stable and reliable.