451results about How to "Reduce lag" patented technology

The invention discloses a live broadcast time shift method which is applied to a live broadcast network including a client and a server. The live broadcast time shift of a user on the client is divided into pause and play. The client acquires the time label of a first index file currently parsed by the client according to pause, and acquires the played time of a video clip corresponding to the first index file. The client determines the timestamp of pause in a live broadcast video according to the time label and the played time. When the client receives play, a live broadcast time shift request is sent to the server according to the time shift time and timestamp of play. The live broadcast video in the live broadcast network is parsed and played according to a second index file returned by the server. After a user who watches live broadcast carries out live broadcast time shift, discontinuous screen caused by play screen hysteresis and play delay is reduced, and the user experience is improved. The invention further discloses the client.

The invention provides a networking method and apparatus of a fog wireless access network based on artificial intelligence. The method comprises the following steps: a central computing logic module receives reported data, wherein the reported data comprise measurement report data reported by a user terminal in the wireless access network, wireless transmission data reported by a base station andoperation and maintenance data reported by the wireless access network; based on these reported data, the central computing logic module configures a wireless access network working mode matching a user behavior, a service attribute and the wireless access network performance through a machine learning algorithm; and based on the access network working mode, an edge computing logic module judges adeployment method for optimizing current configuration, wireless resources, computing resources and cache resources of an edge communication entity. The proposed networking method is based on the machine learning algorithm, can adapt to various service demands, the wireless access network is flexibly constructed, and different application scenes and performance target demands are met.

The invention belongs to the field of equipment fault diagnosis, and particularly relates to a sewage treatment equipment fault diagnosis system and method based on Lasso regression. The fault diagnosis system comprises a sewage treatment subsystem, a plurality of supervision clients and a plurality of data acquisition devices; the sewage treatment subsystem comprises a central console, a communication server, a total data storage server and a data acquisition server; the central console comprises a control module, a data interface module, a data classification module, a machine learning module and a data communication module; and by acquiring data on the data acquisition devices, the machine learning model carries out learning training on the data so as to construct a plurality of sub regression prediction models for predicting fault types of various types of sewage treatment equipment. The sewage treatment equipment fault diagnosis system and method disclosed by the invention providea certain basic diagnosis help for engineering supervision and treatment decisions of sewage treatment, and effectively meet requirements for real-time monitoring and diagnosis on the sewage treatment environment fault problem in the sewage treatment process.

The invention is suitable for the technical field of audios and videos, and provides a method and a device for processing play abnormality of an audio stream, a computer device and a computer readablestorage medium. The method comprises the steps of obtaining audio frame data in a cache; parsing decoding parameters in the audio frame data to obtain related audio data and recording the time stampof the first frame of the audio frame data; decoding and rendering the parsed audio frame data; obtaining the actual audio rendering time based on the related audio data and the time stamp of the first frame of the audio frame data; obtaining a real-time code stream playback time drift based on the actual audio rendering time; judging whether the audio frame data are abnormal based on the real-time code stream playback time drift; and when the judgment result is affirmative, starting and resetting an audio processing operation. According to the embodiment, the problem of sound interruption andstop caused by factors such as code stream shaking, signal instability or code stream hop can be processed efficiently, the stability of audio play is improved, and the conditions of unsmooth audio play are reduced.

The embodiment of the invention relates to a resource management method and device, a mobile terminal and a computer readable storage medium. The above method comprises the following steps that: when a detection result shows that an application in a preset application list operates in a foreground, determining a corresponding foreground process; collecting the occupancy rate of each CPU (Central Processing Unit) in multi-core CPUs; selecting the CPU with the lowest occupancy rate, and distributing the foreground process to the CPU with the lowest occupancy rate to be operated; and when a background process operates on the CPU with the lowest occupancy rate, distributing the background process to other CPUs to be operated. By use of the above resource management method and device, the above mobile terminal and the above computer readable storage medium, a situation that the application which operates in the foreground slowly operates since resources are seized can be reduced.

The invention discloses a method and device for generating a special effect video, belonging to the technical field of computers. The method includes the following steps: receiving a special effect adding instruction, and recording special effect information corresponding to the special effect adding instruction; during video recording, when a recording completion instruction is received, ending the video recording, and displaying a video editing page; and when a special effect editing completion instruction triggered by the video editing page is received, performing special effect editing onthe recorded target video according to the special effect information to obtain a special effect video corresponding to the target video. By adopting the scheme of the invention, the occurrence of thelow-speed operation of a terminal can be reduced.

A control device and a control method for compensating torque adjusting delay of a wind generating set are provided. The control device comprises the wind generating set, a pitch control mechanism, a parameter detecting module, a main controller, an overvoltage protecting module and a frequency conversion controller. By the adoption of the control method for compensating the torque adjusting delay of the wind generating set, the influence of torque adjustment on a whole machine is reduced. On one hand, a feed forward link is added in the control device and the control method, thereby greatly removing the delay caused by torque control and the influence of a random wind speed on quality of system control, optimizing power output of the set and improving responding speed of a subsystem controlled by a fan; on the other hand, a damper is added so as to reduce influence of load impact on a set transmission chain. By means of the control device and the control method for compensating the torque adjusting delay of the wind generating set, responding delay of the wind generating set caused by the torque control and the impact on transmission chain loads can be reduced.

A clamping circuit including a clamping diode, a bias line, and a clamp line is incorporated into a pixel circuit of amorphous silicon sensor arrays. The clamp diode in each pixel prevents the voltage across the photodiode from dropping below a specific threshold. By keeping the photodiode under reverse bias even under conditions that may otherwise saturate the pixel, image lag is reduced. In full fill factor amorphous silicon sensor arrays, a clamping circuit includes a clamp TFT, a bias plane, a clamp line, and a drain line. The clamp TFT reduces lag and blooming by draining off excess current developed under overexposure conditions. A method to globally reset a sensor array and a method to test and repair a TFT matrix in full fill factor sensor arrays without damaging the overlying collection electrode and sensor layer are also provided.

The present invention relates to a method for quickly measuring speed with high precision, in particular to a method for quickly measuring the speed of a motor with high precision. By labeling a Hall signal of the detected motor, the rotation rate of the motor which is accurately acquired by using a small section of signal in the rotation process of the motor is realized. Under the condition of stable speed, and the magnitude relation of the lengths of three Hall signals which are generated during the process of one complete revolution of the detected motor is labeled for determining the corresponding relation of a Hall element and different poles during the actual operation. Meanwhile, the trace and the positioning of the corresponding poles of the Hall signals during the operation process of the motor are completed. The primary advantage of the method is to use the small section of the signal generated during one complete revolution of the motor to accurately acquire the rotating speed of the motor speed. The quick and highly-precise speed measurement is realized.

Use of the hydraulically driven device in a series configuration with a minimally restrictive turbocharger is defined which will allow a very responsive and powerful boosting system to reach boost levels of 4-5 pressure ratio (PR) to support and enable OEM engine downsizing trends. An electric supercharger is also considered. A hydraulic drive assists to increase the acceleration rate of a turbocharger impeller/turbine shaft assembly and provide a secondary means of driving the compressor impeller at lower engine speeds where exhaust gases alone does not generate adequate shaft speeds to create significant induction boost. The hydraulic circuit includes a dual displacement motor, which provides high torque for acceleration yet converts to a single motor for high-speed operation. When the exhaust driven turbine function allows compressor speeds, beyond which the hydraulic system can contribute, a slip clutch allows disengagement of the hydraulic drive. In an alternative embodiment, the hydraulic drive provides means of forced induction air alone.

The invention discloses a continuous type pad printing and coding device. The continuous type pad printing and coding device comprises a workbench, a PLC controller and a pad printing machine. The continuous type pad printing and coding device further comprises a laser coding machine, a conveying component and a drying component. The conveying component comprises a motor, a transmission case, a main chain wheel, a chain and an auxiliary chain wheel. The chain is fixedly provided with multiple fixing seats. Locating blocks are connected to the fixing seats. Brackets are connected to the locating blocks, and the brackets are provided with mold grooves. The side wall of the transmission case is provided with a pad printing locating piece and a coding locating piece. Each locating block is provided with a left groove and a right groove. One end of the transmission case is provided with an infrared sensor. A motor shaft of the motor is sleeved with a wheel disk. Three sensing columns are distributed on the wheel disk. The infrared sensor, the pad printing machine and the laser coding machine are electrically connected with the PLC controller. The continuous type pad printing and coding device conducts continuous pad printing and coding operations on printed objects on a large scale and greatly improves the production efficiency; and pad printing and coding are clearer, the precision is high, the manufactured products are free from fading after being used for a long time and high in recognition capacity.

The invention discloses a method and device for recommending content distribution network systems. The method comprises the steps of determining a plurality of content distribution network systems deployed by a multimedia website; in allusion to each content distribution network system, obtaining a real-time quality evaluation parameter set and a historical quality evaluation parameter set which reflect the content distribution network system; determining a service quality order of the plurality of content distribution network systems according to the respective real-time quality evaluation parameter sets and the historical quality evaluation parameter sets of the plurality of content distribution network systems; and determining a recommendation sequence of the content distribution network systems according to the service quality order of the plurality of content distribution network system so as to recommend the content distribution network systems based on the recommendation sequence. The scheme of the invention is conducive to improving the video playing fluency, reduce the circumstance that the video cannot be loaded for a user terminal side and improve the video watching experience of users.

The invention provides an FPGA-based flux gate micro signal detecting system and an FPGA-based flux gate micro signal detecting method. The FPGA-based flux gate micro signal detecting system comprises a detecting module, an output module and a processing module which is realized by FPGA, wherein the detecting module converts a flux gate signal to a digital signal and transmits the digital signal to the processing module. The processing module performs processing for obtaining a secondary harmonic signal and transmits the secondary harmonic signal to the output module. According to the FPGA-based flux gate micro signal detecting method, after power amplification is performed on a sine wave with frequency of f0/2, saturation activation is performed on the activation coil of a flux gate sensor for generating a flux gate signal with frequency of f0. After filtering and analog-to-digital conversion are performed on the flux gate signal, cross-correlation detection is performed on the obtained digital signal and two reference signals for obtaining a secondary harmonic signal, the amplitude and the phase of the secondary harmonic signal. Finally digital-to-analog conversion is performed on the secondary harmonic signal, and the obtained analog signal drives the load to operate. According to the FPGA-based flux gate micro signal detecting system and the FPGA-based flux gate micro signal detecting method, related operation is realized by means of the FPGA. The FPGA-based flux gate micro signal detecting system and the FPGA-based flux gate micro signal detecting method have advantages of effective hysteresis reduction in signal transmission, high noise inhibition capability, convenient signal processing, and high measurement accuracy. Furthermore the FPGA-based flux gate micro signal detecting system and the FPGA-based flux gate micro signal detecting method can detect nanovolt-grade weak signals.

Example embodiments disclose an image sensor capable of preventing or reducing image lag and a method of manufacturing the same. Example methods may include forming a gate insulating film and a gate conductive film doped with a first-conductive-type dopant on a semiconductor substrate; forming a transfer gate pattern by patterning the gate insulating film and the gate conductive film; and fabricating a transfer gate electrode by forming a first-conductive-type photodiode in the semiconductor substrate adjacent to one region of the transfer gate pattern, by forming a second-conductive-type photodiode on the first-conductive-type photodiode, and by forming a first-conductive-type floating diffusion region in the semiconductor substrate adjacent to the other region of the transfer gate pattern.

The invention discloses a construction method of a dynamic knowledge graph. The method comprises the steps of S1, obtaining original data information; s2, storing and processing the original data information; s3, establishing a knowledge graph primary framework according to the processed original data information; s4, performing knowledge updating on the primary framework of the knowledge graph; s5, performing multiple operations on the S4 to realize multiple updating of the primary framework of the knowledge graph; s6, completing the establishment of the dynamic knowledge graph; according tothe method, the construction and updating of the knowledge graph are efficiently realized, and the initial accuracy and integrity of the knowledge graph are improved.