159results about How to "Solve Caton" patented technology

The invention provides a method and device for optimizing the running speed of a mobile terminal, and relates to the field of computers. The method comprises the steps that types and running state information of applications in an operating system are acquired, stubborn applications in the operating system are identified according to the types and the running state information of the applications, and removal operation is conducted on the stubborn applications. By the adoption of the method and device for optimizing the running speed of the mobile terminal, the stubborn applications which cannot be easily removed in the operating system can be accurately located, the problem that in the prior art, the stubborn applications which automatically start after the applications are closed cannot be identified is solved, the stubborn applications are removed, the memory is released, the running speed of the mobile terminal is increased, and the problem that the mobile terminal of a user is frozen is solved.

The invention discloses a modeling method of a liquid state or semi-liquid state metal battery. The modeling method comprises the following steps: according to a battery impedance spectrum, carrying out fitting, constructing a battery impedance spectrum fitting circuit, and constructing the equivalent circuit model of the battery according to the battery impedance spectrum fitting circuit; adopting symmetrical impulse to carry out a hybrid impulse power performance test on the battery, and obtaining test data used for distinguishing the open-circuit voltage, the resistance and the capacitance parameters of the battery; according to the test data, fitting a function relationship between SOC (State of Charge) and the electrodynamic force, the Ohmic internal resistance, the polarization resistance, the polarization capacitance, the diffusion equivalent resistance and the diffusion equivalent capacitance of the battery, and distinguishing the parameters of the equivalent circuit model; adopting an ampere-hour method to calculate the SOC of the battery; correcting the SOC to obtain a corrected SOC; according to the corrected SOC, correcting the parameters of the equivalent circuit model; and finishing modeling. The modeling method can accurately simulate the external characteristics of the liquid state or semi-liquid state metal battery, and lays a foundation for the charging and discharging management and the subsequent application of the type of novel power grid type energy storage battery including the liquid state or semi-liquid state metal battery.

The invention discloses an automatic testing method of mobile terminal response time. The method comprises the following steps: obtaining an executable script of a manipulator; automatically operating a mobile terminal according to the executable script by using the manipulator and continuously shooting the process of responding to the operation of the manipulator by the mobile terminal at a high speed by using a camera so as to obtain a plurality of images; and analyzing the images to obtain the response time, responding to the operation of the manipulator, of the mobile terminal and forming a test data sheet for analysts to analyze. By means of the method disclosed in the invention, the lag performance test of the mobile terminal is rapidly realized; the manpower and material resources in the testing are saved and the automation of the testing and the recording is realized; meanwhile, accurate and detailed test data are provided for the analysts to carry out analysis and location and the lag problem is solved.

The invention provides a method and device for realizing software bypass in a firewall. The method comprises a step of judging whether a current network traffic flow is larger than or equal to a preset flow threshold, a step of calling a pre-packaged software bypass operation interface in a message receiving end function or an important safety service processing function if the current network traffic flow is larger than or equal to a preset flow threshold such that the software bypass operation interface obtains a current CPU use rate and a current network port receiving rate through calling a pre-packaged calculation interface and the software bypass is carried out between preset paired software bypass network ports according to a preset rule when the current CPU use rate and the current network port receiving rate are larger than a current hardware equipment platform safety service processing packet loss threshold value. According to the method and the device, the problem of network jam or disconnection caused by equipment packet loss when current network flow is large or the sudden traffic of a peak time appears and the current network flow reaches the maximum performance upper limit of the safety service processing of a firewall in the prior art is solved.

The embodiments of the invention provide an image display method. When an input image signal is received, the display apparatus firstly adjusts its own refreshing frequency as the frequency for the input image signal and generates a synchronized field synchronization signal while generating an output image signal. Then, the display apparatus uses the ascending edge of the field synchronization signal as a triggering edge to output a backlight drive signal so that the backlight illumination of the display apparatus is synchronized with the image display of the display apparatus. Since the refreshing frequency of the display apparatus is identical to the frequency of the input image signal, the frequency of the output image signal of the display apparatus is supposed to be also identical to the frequency of the input image signal. Therefore, in the process of displaying an image, the image could be displayed continuously. Further, as the backlight illumination of the display apparatus is synchronized with the image display, the flashing of image does not occur in the process of displaying the image.

The invention discloses a streaming media playing method. The method includes: acquiring a first request for playing streaming media from a player; acquiring an m3u8 file corresponding to the streaming media from a streaming media server according to the first request, wherein the m3u8 file includes URL (uniform resource locator) information of a media file; parsing the m3u8 file and subjecting the parsed m3u8 file to optimizing processing; transmitting the m3u8 file subjected to optimizing processing to the player; acquiring a second request regarding the media file from the player; acquiring the corresponding media file from the streaming media sever according to the second request; transmitting the corresponding media file to the player. The streaming media playing method has the advantages that the problem that the player is not supportive to floating point time length can be solved by means of optimizing processing; the problems of unsmooth picture playing and time progress error of the player are solved by means of optimizing the m3u8 file / media file (for instance: TS fragments); playing smoothness can be improved by selecting more proper addresses according to the CDN (content distribution network) scheduling policy.

The invention provides a code rate adaptive adjusting method and apparatus and an electronic device, being applied to a user terminal being in communication connection with a server. The code rate adaptive adjusting method includes the steps: according to the current system network state, setting the maximum code rate and the minimum code rate, obtaining the first code rate, and coding a transmitted media stream through the first code rate; if frame loss occurs in the preset time, reducing the first code rate to obtain the third code rate, and coding the media stream through the third code rate; and if frame loss does not occur, increasing the first code rate to obtain the second code rate, coding the media stream through the second code rate, determining whether frame loss occurs during the coding process through the second code rate, and reducing the second code rate to obtain the third code rate if frame loss occurs. The code rate adaptive adjusting method correspondingly increases or reduces the code rate by detecting the data frame loss situation, and codes the media stream by means of the modified code rate. Through adaptive adjustment of frame loss and code rate, the code rate adaptive adjusting method effectively solves the video lag situation at a watching terminal because of frame loss.

The invention discloses a data transmission method, and the method comprises the steps: receiving a screen projection request of a screen projection terminal, and building an audio and video data connection channel with the screen projection terminal; acquiring audio and video data through the audio and video data connection channel and playing the audio and video data; monitoring the network state of the audio and video data connection channel; and when the network state becomes poor, selecting and executing a corresponding transmission mode from a preset transmission strategy according to the index value of the network state. The invention further provides a data transmission device, computer equipment and a computer readable storage medium. According to the invention, a proper transmission mode can be dynamically selected according to the index value of the network state, so that the problems of time delay and jamming are solved, and a display effect is improved.

The invention discloses an Android set-top box system-based VR image dither solving system and method, and relates to an Android system set-top box of VR. The system comprises a prediction module, a middle frame generation module, a rendering module, a frame caching module, a middle frame caching module, a display module and a vertical synchronous module; when no image frame exists in the frame caching module, the prediction module predicts head pose information of a next frame according to current head pose information; the middle frame generation module generates a middle image frame throughimage distortion operation according to a normally displayed previous image frame in combination with the predicted head pose information of the next frame; and the rendering module renders the middle image frame and caches the middle image frame in the middle frame caching module; and the display module reads the middle image frame in the middle frame caching module and performs display. The problem of VR image frame dither or image jamming is solved, so that the dizziness of a user is avoided.

The embodiment of the invention discloses a page display method and device and a storage medium. The method comprises the following steps: displaying a shortcut in an original page; newly establishinga webpage container in a hidden state; loading a target page in the webpage container; receiving a first opening operation acting on the shortcut; switching the webpage container from the hidden state to a visible state according to the first opening operation, and displaying the target page in the original page. Therefore, the method is different from the technical scheme that the target page isloaded only when the first opening operation is received. According to the embodiment of the invention, the target page is pre-loaded by using the webpage container in the hidden state instead of being pre-loaded by using the webpage container in the hidden state, so that the problem of target page jamming caused by time delay of loading the target page is solved, the time for a user to wait forthe completion of original page loading is reduced, and the fluency of an original page loading process is improved.

The invention discloses a video playing unsmoothness switching method and system. The method comprises, when playing unsmoothness of a video file occurs on a terminal, obtaining the downloading code stream value of the video file, wherein the downloading code stream value is the code stream value of the video file during the downloading process from a server; instructing the server side to adjust the downloading code stream value of the video file step by step to be smaller than the obtained downloading code stream value of the video file; downloading the video file according to the adjusted downloading code stream value and meanwhile determining whether the playing unsmoothness of the video file on the terminal is eliminated; if so, instructing the server side to stop the step-by-step adjustment and downloading the video file according to the downloading code stream value corresponding the elimination of the playing unsmoothness. The video playing unsmoothness switching method and system can achieve downloading code stream switching when the playing unsmoothness occurs, thereby solving the problem of playing unsmoothness of videos due to code streams of the videos.

The invention discloses a method for improving the RTP video streaming treatment efficiency in the low-speed network. A video collecting end is responsible for obtaining video data in real time, a video coding and packaging module compresses and encodes the video data at first to form videos of a standard format H.264, then RTP packaging is carried out on the compressed videos, and the packaged data are sent to a network cache region; a network sending end obtains the shared RTP package data in the network cache region to generate the RTP frame data, and a plurality of TCP socket pairs are uploaded to the network sending end through the foundation network; a network receiving end as a video server transmits the RTP data by setting up TCP sockets with the network sending end. According to the method, the sockets transmit real-time RTP streaming together, a plurality of small RTP packages are reasonably combined and transmitted at a time, the bandwidth utilization rate is increased, the network transmission efficiency is improved, and the problems of frame loss, frame hysteresis and screen blurring caused by real-time transmission of video streaming can be effectively solved.

The invention provides a bullet screen message processing method and device. The method comprises the following steps: S1, creating a temporary URL link on a client by using static resources for processing bullet screen on a server, and using the temporary URL link to create a bullet screen message processing sub-thread; S2, retrieving a pre-created bullet screen message processing task queue in the bullet screen message processing sub-thread after each preset time length, and storing the bullet screen messages corresponding to the retrieval result in a pre-created stack; S3, if unprocessed bullet screen messages exist in the stack, converting the unprocessed bullet screen messages into HTML templates; and S4, sending the HTML templates to a main thread of the bullet screen message processing sub-thread, so that the main thread renders the unprocessed bullet screen messages. By adoption of the bullet screen message processing method and device, the cross-domain problem is solved on onehand; and on the other hand, the batch processing of the bullet screen is achieved, the bullet screen processing efficiency is improved, the client blockage problem is solved, and the user experienceis improved.

The application discloses a rendering method and device used for a user interface (UI). The method includes: establishing an ADNode tree, which corresponds to an added or changed visible control, through an ADNodeThread when the UI adds and / or changes the visible control; generating a View tree through a UI thread, and mounting an AsyncView of the ADNode tree at a node where the visual control corresponding to the view tree is located; generating an asynchronous rendering result through the ADNodeThread according to the ADNode tree; and completing a drawing process of the AsyncView in the viewtree by the UI thread according to the asynchronous rendering result, and generating a UI. Therefore, problems that UI thread resources are occupied in a rendering process and UI running is not smooth are solved.

The embodiment of the invention discloses a multi-video-card video data processing method and device, and aims to solve the technical problems of lag, tearing, excessively-low frame rate and the like under a multi-screen and multi-video-card situation due to playing of local video files with a common player in a work station in current large-screen display applications of monitoring rooms and meeting rooms. In the embodiment of the invention, the multi-video-card video data processing method comprises the following steps: determining widths and heights of output screen resolutions of video cards; creating corresponding D3D equipment and buffering areas according to the widths and the heights of single logical screens formed by the video cards; and copying decoded video data into the buffering areas through the D3D equipment in order to uniformly display the decoded video data.

A streaming media playback method suitable for Internet live broadcasts comprises the following steps: receiving real-time playback streaming data at a streaming media playback terminal, unpacking a received network data packet, and caching the network data packet; detecting audio and video cache data in the network data packet, and analyzing and extracting parameters that can be applied to audio playback rate control; extracting video data from the audio and video cache data, and performing video decoding to obtain video sampling data for video display; extracting audio data from the audio and video cache data, performing audio decoding to obtain audio sampling data, performing variable speed control for audios based on the acquired audio playback rate control parameters, and playing the audio sampling data after being subjected to speed change; and synchronously processing audio playback and video display.

The invention provides a video monitoring data storage access system, which comprises a front-end acquisition system for acquiring image data containing pedestrians; a pedestrian recognition system used for recognizing pedestrian characteristics in the image data; an object storage system used for storing image data of pedestrians and pedestrian characteristics; a business application system connected with the object storage system and used for obtaining specified pedestrian information and a CDN by sending a request containing pedestrian characteristics to the object storage system, wherein the CDN comprises a plurality of edge nodes for receiving a user access request, so that specified pedestrian information required by a user is called from the object storage system and responds to theuser through the edge node closest to the user. The video monitoring data storage access system disclosed by the invention can support data storage and random expansion, and the phenomena of laggingand delay in a transmission process of image-text data sent to a user is solved.

The invention relates to the technical field of network broadcast and particularly relates to a method and apparatus for playing live streams in a live broadcast room, a computer storage medium, and a device. The method comprises the following steps: decoding cached and undecoded live stream data in a live stream data cache queue by use of a decoding thread; storing decoded data in a live data output list and playing the data; during the decoding process of the decoding thread, judging whether a first time length of the cached and undecoded live stream data in the live stream data cache queue is greater than a first time length threshold; if the first time length is smaller than or equal to the first time length threshold, pulling, by a pulling thread, new live stream data and caching the new live stream data into the live stream data cache queue; and if the first time length is greater than the first time length threshold, stopping, by the pulling thread, pulling the new live stream data until the first time length is smaller than or equal to the first time length threshold. According to the invention, the problem of stagnation in a live broadcast process is solved, and the live broadcast process becomes smooth.

The invention discloses a method and a device for transmitting and receiving video data packets. The method comprises the steps that a transmitting end places the video data packets to be transmitted currently into the cache of a retransmission thread, wherein the first predetermined number of video data packets transmitted currently are stored in the cache; the transmitting end sequentially transmits the video data packets to a receiving end in an order of continuously increased identification numbers, wherein each video data packet carries one identification number; the transmitting end receives a packet-loss feedback packet from the receiving end, wherein the packet-loss feedback packet carries the identification numbers corresponding to the video data packets not received by the receiving end; and the transmitting end analyzes the packet-loss feedback packet to acquire the identification numbers corresponding to the video data packets that are not received, extracts the video data packets from the cache of the retransmission thread according to the identification numbers and retransmits to the receiving end. By using the method and device, the packet loss probability in real-time video data transmission is well reduced, the problem of blocking of the videos is effectively solved, and the better user experience is achieved in video call.

The embodiment of the invention relates to the technical field of aerial photography, and discloses an aircraft control method and an aircraft. The aircraft control method is applied to the aircraft.The aircraft comprises a flight control system and a cloud deck control system, wherein the flight control system is used for controlling the aircraft, the cloud deck control system is used for controlling a cloud deck and can be used for acquiring a yaw control instruction input to the aircraft and attitude angle information output from the cloud deck, controlling yaw of the cloud deck accordingto the yaw control instruction input to the aircraft and the attitude angle information output from the cloud deck and further achieving high-accuracy control of aircraft aerial photography, so that high quality of aerial photography video is ensured, and the problem of video lag during low-speed aerial photography is solved.

The invention provides an information display method and an information display device. The method comprises the following steps: obtaining the information type of each part of to-be-displayed information in a plurality of parts of to-be-displayed information; judging whether the information type contains a target information type or not; if the target information type is included, obtaining a first refresh frequency of target to-be-displayed information corresponding to the target information type, and determining a first display frequency according to the first refresh frequency; and displaying the plurality of parts of to-be-displayed information according to the first display frequency. Therefore, when a plurality of parts of to-be-displayed information are included, smooth and complete display of the to-be-displayed information of a specific information type is preferentially ensured. The power consumption during information display is balanced. The technical problems of information display lag, repeated display or frame loss in the prior art are solved.

The invention discloses a light funnel illumination system based on conical fiber light guide. The light funnel illumination system comprises a condensing device, a light guide device and an illumination device; the condensing device comprises a condensing lens for collecting sunlight, and a photoelectric type tracking device for controlling the condensing lens to rotate; the photoelectric type tracking device controls the condensing lens to move collect the sunlight; after the sunlight penetrates through the condensing lens, a light spot is formed, and the light guide device transmits the light spot to the illumination device to realize illumination; the light guide device comprises a first optical fiber arranged below the center of the condensing lens and used for transmitting the sunlight, and a second optical fiber connected with the first optical fiber and the illumination device. The light funnel illumination system adopts the conical fiber as the light guide device, and the aperture of the large end of the conical fiber is greater than the diameter of the light spot, so that even if the light spot shifts, light can enter the conical fiber very well, and no energy loss appears; and the small end of the conical fiber is connected with the second optical fiber in an adapted manner, so that the brightness of an outlet optical fiber of the second optical fiber is improved, manufacturing materials are saved, and the cost is lowered substantially.

The invention provides a coal mine monitoring system and method and a computer storage medium, and the system comprises intelligent sensing equipment which is disposed in a well and can collect coal mine safety monitoring data in real time; edge computing gateway equipment which is connected with the intelligent sensing equipment, can acquire the coal mine safety monitoring data, carry out local analysis and processing to generate decision information, gives an alarm instruction according to the decision information and sends a control instruction to associated equipment; a plurality of coal mine safety monitors which monitors the environmental information in the coal mine; and a group-layer safety monitor which acquires safety monitoring information of each coal mine. According to the system provided by the embodiment of the invention, the pressure of a ground data processing center is reduced, the timeliness of data analysis is improved by changing a mode where the data is transmitted to a ground central station to be processed into a mode of processing the data underground, and the service response capability is enhanced.

The invention discloses a map rendering method, a device and computer equipment, belonging to the technical field of terminals. Through data exchange between the native map module and the three-dimensional display engine, the native map module of the system can replace the three-dimensional display engine to process the map grid data, so the 3D display engine does not need to deal with a large amount of data, and will not cause excessive time overhead, thus avoiding stuck and the waste of memory, greatly improving the effect of picture display, and not affecting the normal operation of the application. In particular, for the functional components that have implemented map rendering on the native side, the method provided by the embodiment connects the rendering function of the native sideto the rendering flow of the 3D display engine on the basis of the rendering function, thereby realizing map rendering on the native layer and achieving a stuck-free experience.

The invention relates to the field of remote teaching and especially relates to a remote learning system. The remote learning system comprises a collecting device, a cloud terminal, a content dispatching network system and a terminal, wherein the collecting device comprises a video collecting device and an audio collecting device; the video collecting device is used for collecting the video information of the teacher having a lesson and sending to the cloud terminal; the audio collecting device is used for collecting the video information of the teacher having a lesson and sending to the cloud terminal; the content dispatching network system is arranged between the cloud terminal and the terminal; the content dispatching network system comprises a plurality of service nodes; the content dispatching network system is used for dispatching the video information and audio information received by the cloud terminal to the service nodes; the terminal is connected with the optimal service node according to the distances away from the service nodes and the loading conditions of the service nodes. The remote learning system is capable of solving the problems of network jam, delaying, blocking or offline of the present remote learning system when a large amount of users are online.

Embodiments of the invention disclose an application program starting method and device, a storage medium and a terminal. The method comprises the following steps of determining a to-be-preloaded application program when an application pre-loading event is detected to be triggered; preloading the to-be-preloaded application program; when a starting instruction of a target application program, which is contained in the to-be-preloaded application program, is received, judging whether preloaded first configuration information corresponding to the target application program is the same as secondconfiguration information of a current display interface; and if not, prohibiting an update operation on the first configuration information, and starting the target application program based on the first configuration information. Through the adoption of the technical scheme, the problems that the preloaded target application program is slow in starting speed and has a lag due to the fact that the first configuration information corresponding to the preloaded target application program and the second configuration information of the current display interface are different can be effectively solved, and the starting speed of the to-be-preloaded application program can be effectively improved.

The invention belongs to the technical field of computers, and discloses an application method of oblique photography modeling data in immersive display equipment. The method comprises the following specific steps: designing an oblique photography data generation scheduling module according to a visual system platform architecture of a flight simulator, and establishing a panoramic drawing platform software structure; preprocessing the massive oblique photography models by using a panoramic view real-time generation technology, and constructing view generation contents by using a texture mapping technology; and improving the visual content through a fast approximation anti-aliasing algorithm, and performing image processing. The combination of the preprocessing technology and the texture mapping technology can well solve the problem of delay or lag caused by real-time scheduling of a large-scale natural scene in the immersive display equipment, the resolution of a visual image is improved, and the quick approximate anti-aliasing processing is performed, and then the quality of visual contents is greatly improved.

The invention relates to a Hough transform-based circle recognition method. The circle recognition method comprises the steps of S1, calling an OpenCV vision library, and enabling multiple threads to perform frame skip processing on an original image; S2, performing gray processing, zooming and smoothing processing on the original image subjected to the frame skip processing in sequence to obtain an optimized image; S3, calling a cvHoughCircles function in the OpenCV vision library to perform circle detection on the optimized image to obtain a detection result, wherein the detection result comprises circle center coordinates and a circle radius; and S4, performing accumulation analysis and screening processing on detection results returned every a predetermined frame number to obtain an optimal detection result. The method has the beneficial effects that the technical scheme is high in matching speed, good in anti-jamming capability and high in detection precision.

The invention discloses a data processing method and device and belongs to the technical field of data. The method comprises the steps of obtaining practical transmission efficiency of streaming mediadata, wherein the practical transmission efficiency is determined according to a ratio between second streaming media data quantity received by a second device and first streaming media data quantitysent by a first device; inputting the practical transmission efficiency and preset target transmission efficiency into a proportion-integration-differentiation (PID) controller, thereby obtaining anadjustment coefficient; and adjusting a transmission bit rate of the streaming media data by a coder according to the adjustment coefficient. According to the method and the device, the problem that the streaming media data transmission is delayed due to the fact that a network bandwidth predicted by the first device is asynchronous with an adjustment bit rate is solved. The first device does notneed to predict the network bandwidth, so the adjustment coefficient which is not suddenly changed within short time can be obtained through utilization of the PID controller. The transmission efficiency of the streaming media data is improved.

The embodiment of the invention provides a network video playing method and an apparatus thereof. The method is applied to an internet of scenes and comprises the steps of reading video frames from avideo buffered queue; collecting a frame interval between the video frames in real time and analyzing to obtain a dormancy time for playing the video frames; extracting the number of the video framesin the video buffered queue, and performing comparative analysis on the number of the video frames; if the number of the video frames is smaller than a minimum threshold value, increasing the dormancytime according to a predetermined rule; if the number of the video frames is greater than a maximum threshold value, reducing the dormancy time according to the predetermined rule; and based on the current dormancy time, playing the video frames. The method can analyze in real time to obtain the frame interval between the video frames currently read from the video buffered queue, and analyzes according to the number of the video frames in the buffered queue to obtain the dormancy time required to play a video, so the problem that a video picture is stuck and is jittered due to an insufficiently accurate timestamp of the video is solved.