1488results about How to "Guaranteed fluency" patented technology

The invention discloses a method, a client side and a system for self-adaptive playing of FLV (flash video) media streams. The method includes: downloading an FLV index file; when the condition that the current network bandwidth is unmatched with the bitrate of a played FLV media stream is monitored, determining a current key frame of an FLV media stream with the bitrate matched with the current network bandwidth according to the FLV index file; and downloading and playing the FLV media stream with the bitrate matched with the current network bandwidth from the current key frame. The method, the client side and the system have the advantages that by means of computing network access rate, the client side and the system can be automatically switched to the bit stream matched with the bandwidth according to the available bandwidth after the FLV media streams are played, and accordingly network bandwidth influence is weakened, the bandwidth is used more effectively, watching fluency of users is guaranteed more effectively, and playing quality of streaming media is improved.

The invention relates to a system and a method for playing a stream media by using a self-adaption bandwidth. The system comprises a media source server, a client and a transcoding server, wherein the transcoding server acquires an original media stream by connecting with the media source server through a network, the original media stream is transformed into the media stream matching with a target code rate of a real-time bandwidth of the client by the transcoding server and the media stream is sent to the client through the network. The method comprises the following steps of: detecting the bandwidth of the client by the transcoding server, sending a request of playing the stream media to the transcoding server by the client, acquiring the original media stream by the media source server according to the request, monitoring the bandwidth between the client and the server at real time, transforming the original media stream to the media stream which is matched with the code rate of the bandwidth, sending the transformed media stream to the client by the transcoding server so as to be played by the client. The fluency for playing the media by the client is promoted and the user experience is greatly improved.

The invention relates to a combined type bionic quadruped robot controller, which is in a structure similar to a vertebrate nervous system, wherein the controller is divided into a decision layer, a planning layer and an execution layer which respectively correspond to a higher nervous center, a lower nervous center and a motor nerve of an animal. The decision layer for realizing that the robot senses the working environment and generates corresponding motion decision instructions consists of an ARM9 (advanced RISC (reduced instruction-set computer) machine 9) and an environmental information acquisition system, and a real-time operating system is embedded in the ARM9. The core of the planning layer is a walking pattern generator, and is used for planning and solving the motion parameters of each joint according to the decision instructions from the upper layer. The execution layer for controlling the current, the position and the speed of a driving motor in three closed loops consists of a motor controller using a digital signal processor as the core. Data can be effectively transmitted among the three layers in real time through a dual-port RAM (random-access memory) and a CAN (controller area network) bus network. The combined type bionic quadruped robot controller disclosed by the invention has the characteristics of high reliability, high flexibility, extension easiness and maintenance easiness, and has a broad application prospect in the technical field of bionic legged robots.

The embodiment of the invention discloses a video frequency broadcast and control method, which comprises the following steps of: according to the request on video frequency broadcast of a user, obtaining relevant information of the requested video frequency, wherein the relevant information comprises at least one kind of articulation information supported by the requested video frequency; and detecting current network information, and selecting suitable articulation matched with the current network information as well as broadcasting the requested video frequency. The embodiment of the invention further discloses a video frequency broadcast and control device. By the adoption of the video frequency broadcast and control device, the suitable articulation can be selected aiming to the network situation of a user to carry out the broadcast of the video frequency, the smoothness of video broadcast can be guaranteed, and the video view experience of the user is promoted.

The invention belongs to the technical field of video production, and particularly relates to a video producing method, device and system. The video producing method comprises the following steps: reading a configuration file, and acquiring and loading resources for producing a video; starting a rendering engine, and initializing a hardware encoding-decoding environment and an OpenGL off-screen rendering environment; and performing frame-by-frame off-screen rendering to generate raw video streams. Through adoption of an off-screen rendering technology, video production can be run in the form of a background task without being limited by the screen resolution. Through frame-by-frame rendering based on decoding time, audio-video synchronization and animation smoothness of an output video are ensured. Moreover, hardware decoding is performed on videos supporting hardware decoding, and hardware screen capture is performed on content which is already rendered in an off-screen way, so that hardware resources are utilized fully; the CPU (Central Processing Unit) occupation rate in a video producing process is lowered; and the processing efficiency is increased.

The invention discloses an emotion interaction method and device, a computer readable storage medium and computer equipment. The emotion interaction method comprises the steps as follows: acquiring user data; performing emotion recognition on the user data to obtain the emotion state of a user; determining intention information at least according to the user data; controlling interaction with theuser according to the emotion state and the intention information. By the aid of the technical scheme, emotion interaction with the user can be realized, and the user experience of the interaction process can be improved.

The invention discloses a wireless video monitoring system and a method for dynamically regulating a code stream according to network state. The method comprises that: when the wireless video monitoring system performs real-time video data transmission, a mobile video access unit regulates the key frame interval and code rate of the video data adaptively according to the packet loss rate of the video data reported by a mobile terminal before the video data transmitted by the fixed network video monitoring system is forwarded to the mobile terminal. When the system and the method are adopted, a mobile terminal can play real-time video data smoothly in network environments in all states.

The invention provides a streaming media technology-based network video player and a streaming media technology-based playing system, which can switch pictures in the live broadcasting process. The player can receive a plurality of paths of live broadcast signals of the same video source, and playing windows are divided into a main window and a plurality of auxiliary windows, wherein the main window plays one path of direct broadcast signals, the rest paths of direct broadcast signals are cached to the player and are simultaneously played in the plurality of auxiliary windows. The player can make a user watch a plurality of pictures with different shooting angles at the same time, and meets different requirements of different users on video playing. Besides, the player also has code stream selection function, so the user can freely select one type of code stream for playing, and also can switch the code stream in the playing process so as to adapt to the network transmission state.

The invention provides a 3G video transmission method and system based on compression sensing in a video monitoring scene, and belongs to the field of data compression and video transmission. After the format of video information collected by a camera is converted into the YUV format through color space conversion, H.264 coding is conducted, compression processing of compression sensing is conducted on coded data, video data streams obtained through compression are transmitted in a 3G network according to the RTSP protocol and the RTP / RTCP protocol, and reconstruction processing of compression sensing and the H.264 decoding process are conducted at a terminal so that restored video information can be obtained. Compression sensing is combined with the RTSP protocol and the RTP / RTCP protocol to be used in the 3G video transmission system, and therefore the system can meet the requirement for instantaneity of video transmission from the aspects of control and data, the system has the self-adaption video coding speed and network transmission speed regulation function, the size of the data transmitted through a network can be greatly reduced, broadband resources are saved, and the transmission efficiency of the system is improved.

The invention discloses a high-precision precise workpiece detecting-sorting machine. The machine comprises a first stander and a second stander, wherein a loading mechanism is arranged on the first stander; a first metal rotating disc, a second transparent rotating disc, a first conveying mechanism and an electric control unit are arranged on the second stander, the first metal rotating disc and the second transparent rotating disc are respectively driven by power devices, and the first conveying mechanism is used for conveying a workpiece from the loading mechanism to the first rotating disc; a first sensor, a longitudinal surface size detection mechanism, a second conveying mechanism and a first receiving mechanism are circumferentially arranged on the first rotating disc, and the second conveying mechanism is used for conveying the workpiece on the first rotating disc to the second rotating disc; a second sensor, a transverse surface size detection mechanism, an appearance detection mechanism and a second receiving mechanism are circumferentially arranged on the second rotating disc; the electric control unit is used for coordinating and controlling the action of each component. According to the high-precision precise workpiece detecting-sorting machine, the mechanical production line automatic detection is realized, and the first rotating disc can be subjected to surface polishing in a later machining period, so that the longitudinal surface size detection precision is improved, and the detection and sorting efficiencies are further increased; meanwhile, as workpieces with different shapes can be detected, the universality is enhanced.

The invention discloses a memory managing method, device and terminal. The embodiment of the method comprises the steps of obtaining usage habit data of a user for an application program; determining limited application programs based on the usage habit data; managing a memory according to the limited application programs. Managing the memory automatically according to the usage habit of the user for the application program is achieved, the use efficiency of the memory is improved, and the smooth running of a system is guaranteed.

The invention discloses a web page sectionally-loading method and a web page sectionally-loading system for a mobile browser. The method comprises the following steps: a client side of the browser sends a web page data sectionally-loading request to a middle server; the middle server obtains web page data from a target server and sectionally processes the web page data according to the web page data sectionally-loading request; the middle server returns first web page loading data generated after processing to the client side of the browser; the client side of the browser typesets and displays the first web page loading data adaptively on a screen. The method and the system have the advantages that when a first section of web page content is displayed on a display interface, the web page content loading time is shortened; and when a user needs to browse the next section or the rest of the webpage content, corresponding picture data positioned on the middle server are loaded in a networked manner through locally loading the document content, so that the fluency of web page content browsing by the user is guaranteed and the net surfing experience of the user is improved.

The present invention relates to a network video playing method, which comprises the following steps: preset multiple code streams for each video source; a user requests to play a video, and selects a video code stream; judges whether it is necessary to switch the video code stream, and if so, then Switch the video stream according to the timestamp. In addition, the invention also provides a network video playing device. Adopting the present invention can ensure fluency and provide users with high-quality video images as much as possible in the case of unstable network, so as to achieve better display effect; realize automatic video switching to reduce unnecessary time loss caused by manual operation ; The time stamp is also used to switch the corresponding video, so that the transition of the picture is smooth and natural.

The invention provides a method for playing network video and a system for playing the network video, which can provide video playing of various optional code streams. The method comprises the following steps of: presetting various code streams aiming at each video source; and playing the video corresponding to the video source by selecting one code stream. The method and the system can select low code streams under the condition of a few network bandwidth resources and select high code streams under the condition of abundant network bandwidth resources so as to ensure the fluency of the video playing. Moreover, the method and the system can improve the number of concurrent users of the network video playing by regulating the video code streams in the process of playing.

The invention provides a network television direct broadcasting system. The system comprises a streaming media signal acquisition server, a streaming media signal receiving server and a streaming media content transmitting server, wherein the streaming media signal acquisition server is used for acquiring the original streaming media signal from a program signal source in real time and generating a streaming media direct broadcasting file by coding; the streaming media signal receiving server is used for acquiring the streaming media direct broadcasting file from the program signal source in real time and buffering streaming segments; the buffering of the streaming segments is to establish an index for each key frame of the streaming media direct broadcasting file; and the streaming media content transmitting server is used for acquiring the streaming media direct broadcasting file from the streaming media signal receiving server and transmitting the streaming media direct broadcasting file to a network player for playing in real time. The system has the functions of direct broadcasting, playback, multi-screen signal acquisition, code optimization, multi-rate coding, automatic cutting, multi-packet transmission and the like.

The invention discloses a face detection tracking method and device and a robot head rotation control method and system. The face detection tracking method comprises the following steps: collecting an image and carrying out depth detection processing on the image, and obtaining a depth value of each pixel point in the image; determining a human face candidate area according to the depth value of each pixel point of the current frame image; carrying out face detection on the human face candidate area to determine a human face frame of the current frame image; and according to the human face frame of the current frame image and a tracking human face frame, determining a tracking frame of the current frame image, and carrying out tracking on the human face in the tracking frame of the current frame image. The face detection tracking method facilitates reducing mis-detection rate and improves face detection accuracy. The robot head rotation control method adopts the face detection tracking method to carry out face detection, thereby facilitating guaranteeing smoothness of the robot head rotation process, and preventing the clamping phenomenon in the rotation process.

Disclosed are a network data transmission method, apparatus, and system. The method comprises: predicting a network resource transmission situation of a target terminal within a certain time period in the future; generating, based on the network resource transmission situation, a selective scheduling policy ensuring user experience; and sending network data to the target terminal in a centralized scheduling interval according to the selective scheduling policy, the network data being used for the target terminal to run a current service in the centralized scheduling interval and a use interval. Embodiments of the present invention can ensure fluency of a service run in the target terminal, and ensure service experience of a user.

The invention provides a video decoding method. The method comprises the steps of applying for a predetermined number of frame buffers at a video acquisition stage, directly mapping the obtained frame buffers into a user space, performing format conversion on the acquired image data and coding the data, splitting video data and framing the video data for transmission, and running a receiving thread, a data processing thread and a decoding thread simultaneously in a pipeline system upon receiving one frame of data, decoding the data, performing format conversion on the decoded data and then displaying the data. The video decoding method has the advantages that the instantaneity of video data reading is optimized and the fluency of video is guaranteed. The acquisition, compressing, digital transmission and decoding of high-speed videos are completed by use of a simple structure and a technique easy to implement at low cost.

The embodiment of the invention provides a video processing method and device and an electronic device, wherein the method comprises the steps of carrying out the target detection of a to-be-detectedvideo frame extracted from a to-be-processed video, and determining a main body frame in the to-be-detected video frame according to the detected detection frame information; determining the positioninformation and the size information of the cutting frame in the to-be-detected video frame according to the size information of the playing window of the client by taking the central pixel point of the main body frame as the central pixel point of the cutting frame and the height and width of the to-be-detected video frame; determining position information of the cutting frame in the video framebetween any two adjacent to-be-detected video frames according to the position information and the moving track of the cutting frame; and clipping each video frame according to the position information of the clipping frame in each video frame and the clipping frame size information to obtain the clipped video frame, so that cutting is carried out according to the video content in the horizontal screen video, and it can be guaranteed that the main content of the video is reserved in the cut video frame.

The invention relates to the field of video live broadcast and specifically relates to a video stream push control method and device and a video stream director end. The method comprises the following steps of receiving inner network video streams sent by push ends to a local area network stream push address configured to the director end, wherein the director end and the push ends are located in the same local area network; generating an outer network video stream according to the inner network video streams; and sending the outer network video stream to a director server through a public network, thereby sending the outer network video stream to a live broadcast platform through the director server. Multichannel inner network video streams pushed by the push ends are received by an inner network server built in the director end, the inner network video streams are synthesized into the outer network video stream, and the outer network video stream is pushed to the director server, wherein the push ends and the director end are located in the same local area network. Outer network bandwidths are prevented from being occupied repeatedly, moreover, an occupation rate of uplink bandwidths of an outer network can be reduced, loads of the director server is further reduced, the live broadcast fluency of a video is ensured, and the definition of video images is improved.

The invention relates to an automatic steel ball screening and packaging machine. The automatic steel ball screening and packaging machine is characterized by comprising a rack, an emptying box, a screening and filtering track and a weighing platform; the emptying box is obliquely placed at the left end of the rack; the screening and filtering track is divided into a preliminary selection track, a screening track, an oil spraying track and a material discharging track; the screening and filtering track and the upper plane of the track form an included angle with an oblique angle of 5 degrees-8 degrees; a groove is formed in the weighing platform; a screening mold is clamped and buckled in the screening track; the screening mold is divided into spacing plates in upper and lower rows, and intervals of the upper spacing plates are greater than intervals of the lower spacing plates; and steps which are oblique downward by 5 degrees are formed at two sides of the lower spacing plates. An intelligent control system is adopted for the device, and the device is controlled integrally by a control box and rolls automatically for the steel balls are spherical; the screening mold has three output tracks and can detect steel balls which are completely fit for the standard, and finally the steel balls are weighed, measured and packaged by the weighing platform; and the working efficiency is high, and the labor and energy sources are saved.

The invention provides a method for dynamically controlling a frame rate of a game. The method comprises the following steps of: separating logic processing from the picture rendering frame rate; counting the requirements of the current game for the rendering frame rate after calling a call entry of a first function every time; determining whether to immediately call a call entry of a second function or not, as well as the time interval for calling the call entry of the first function or the call entry of the second function next time; suspending the program, re-determining whether to call the call entry of the first function or not during a next re-operating process according to the recorded time of calling the call entry of the first function; and re-countering the requirements of the game for the rendering frame rate, so that the dynamic control over the picture rendering frame rate is realized. According to the method disclosed by the invention, the picture rendering is only carried out while being needed, so that an occupancy rate of a CPU (Central Processing Unit) is greatly reduced on the condition of ensuring the normal response speed and picture fluency, thereby reducing the consumption of electric quantity of a battery.

The embodiment of the invention relates to an image compression method and an image compression device. The method concretely comprises the following steps that: a network crowding degree of an image transmission network is detected, the available transmission rate for image transmission of the transmission network is calculated according to the network crowding degree, the data quantity threshold of single frame images transmitted by the transmission network is calculated according to the available transmission rate, when the data quantity of the transmitted images is greater than the data quantity threshold of the single frame images, a specific region or a non-specific region in the images is identified, and the specific region and the non-specific regions in the images are compressed according to different compression ratios and are then transmitted. Therefore, the method and the device disclosed by the embodiment of the invention have the advantages that when the data transmission environment is poor, the distinguishing processing on the specific region and the non-specific region of the images is realized, the definition of the specific region of the images received by users is improved, and meanwhile, a certain smoothness degree can also be ensured.

The invention provides a remote maintaining and monitoring system for a GYK. A hardware system of the remote maintaining and monitoring system comprises a user terminal, a server and a vehicle-mounted device, wherein the user terminal and the vehicle-mounted device are connected with the server through a communication link, the vehicle-mounted device comprises a vehicle-mounted main unit, the GYK, a GYK DMI and a remote control GYK, the vehicle-mounted main unit is used for receiving information uploaded to the server by the user terminal and sending vehicle-mounted updating information to the server, the GYK is used for receiving data transmitted by the vehicle-mounted device main unit through RS422, the GYK DMI is used for receiving data transmitted by the vehicle-mounted device main unit through a CAN bus, sending a sound-light alarm prompt message and displaying the current state of the updating data information and the content of notice information, and the remote control GYK is used for upgrading updating data, releasing a train order and sending the updating data and the train order to the GYK through a USB communication bus. According to the remote maintaining and monitoring system for the GYK, vehicle-mounted car traveling control over the GYK and upgrading of a DMI control program are achieved, and smoothness, reliability and safety of data transmission are improved.

The invention relates to a multifunctional integration embedded static image compression system, wherein the image gathering module comprises a video decoder, a video gathering programmable logic device and the corresponding static storage, the image compression module comprises a digital signal processor for preliminary treatment, small wave conversion, entropy encoding, rate control and packing with the corresponding synchronous dynamic memory, and the data transmission module comprises a main controller and a general purpose serial controller. The invention realizes visualized control for rate flow with the transmission velocity of flow compression as high as 480Mbps.

The invention discloses a method and a terminal of process management. The method of the process management comprises detecting attribute states of at least one course in a system, wherein the attribute states comprise a recovery prevention state and a normal state; setting recovery priority of the course according to the attribute states; and closing the course according to the recovery priority when used memory space of the system is larger than an internal storage threshold value, and enabling the used memory space of the system to be smaller than the internal storage threshold value. The method and the terminal of the process management are capable of reducing possibility that an important course is closed because of insufficient memory, and improve intelligence of the terminal of the process management.

The invention provides a streaming media audio file play method based on a mobile terminal memory card cache technology, in the method, a predetermined storage region in a memory card externally connected with the mobile terminal is used as a cache region specially used for caching the streaming media audio file, so that one or more integral streaming media audio files can be stored in the cache region, users can repeatedly listen to the audio files only by reading the cached files again without downloading from a streaming media server, time and data communication cost are saved for the users, and the cache occupies no memory capacity of a mobile terminal processor and has no influence on system processing capability of the mobile terminal; simultaneously, a technical means of the mobileterminal external memory card is mature and used widely, technicians of the field can easily set the cache region in the memory card, and maneuverability is very strong.

The invention discloses a virtual prop processing method and apparatus, an electronic device and a storage medium. The method comprises the steps of providing a virtual prop interface in a graphic user interface, wherein the virtual prop interface comprises virtual props displayed in a preset display mode; detecting sliding operation on the virtual props in the virtual prop interface; judging whether the sliding operation meets a first preset condition or not; when it is detected that the sliding operation meets the first preset condition, providing a parameter control, wherein the parameter control is used for adjusting the quantity of the virtual props; and after the quantity of the virtual props is adjusted, executing virtual operation on the virtual props. The technical problem of lowvirtual prop screening and arrangement efficiency in an interactive mode of a mobile terminal is solved.

The invention belongs to the technical field of environmental geotechnics and discloses a river silt cleaning system. The river silt cleaning system comprises a carrier, a silt cleaning device, a mud making device and a mud storage device, wherein the silt cleaning device is fixed on the carrier and goes deep into a river silt seam to clean river silt; the mud making device is connected with the silt cleaning device, smashes the river silt and makes the river silt into mud; the mud storage device is connected with the mud making device and stores the mud. The river silt cleaning system is efficient, convenient, anti-clogging and low in pollution.

The invention relates to the technical field of the Internet and discloses a live broadcast assistant audio / video processing method and device. The method comprises the steps of collecting anchor audios, background music and special effect audios through a live broadcast assistant audio / video application, carrying out audio processing and integrating the anchor audios, the background music and the special effect audios into an audio stream; collecting live broadcast images through the live broadcast assistant audio / video application, carrying out image processing to generate a video stream; aligning time stamps of the audio stream and the video stream to generate an audio / video stream data packet; and transmitting the audio / video stream data packet to a live broadcast application through a cross-process communication channel. The audios in the live broadcast process are effectively integrated into the audio stream, the time stamps of the audio stream and the video stream are aligned, the audio stream and the video stream are transmitted to the live broadcast application, various audios in the live broadcast process are prevented from mutual interference, and the fusion effect of the live broadcast application for the audios in the live broadcast process is relatively good.