1135results about How to "Guaranteed fluency" patented technology

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 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 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 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 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 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 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 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.

The invention relates to the field of multimedia technologies, in particular to a video playing control method and device as well as terminal equipment. The method comprises the following steps of obtaining video stream of a direct broadcasting room from a server; determining a decoding condition provided by a terminal, selecting a matched decoding interface to decode the video stream, and preferentially calling a hardware decoding interface to decode when the decoding condition includes the hardware decoding interface and a software decoding interface, otherwise calling the software decoding interface to decode; and determining a rendering condition provided by the terminal, selecting a matched graphic rendering interface to output the decoded video stream to a user interface to display after drawing, and preferentially calling a hardware rendering interface to render when the rendering condition includes the hardware rendering interface and a software rendering interface, otherwise calling the software rendering interface to render. According to the method, the device and the terminal equipment, the terminal can realize smooth watching of the live video stream at high resolution, high bit rate and high frame rate.

The invention discloses an H.264 code rate control method which comprises the following steps of: Step 1, calculating macro block MB motion complexity SAD and a visual perception weight of an image by executing pre-motion-estimation; Step 2, calculating an image frame-level target bit number by integrating an image target code rate, the target code rate and a filling degree of a bit stream buffer region; Step 3, carrying out frame-level code rate control on the image; Step 4, carrying out MB-level code rate control on the image and by a code rate control model, distributing a suitable quantization parameter QP for each MB according to the MB motion complexity and the frame-level target bit number which are obtained in the process; Step 5, carrying out formal motion estimation on the image. Compared with an existing method, the H.264 code rate control method has the advantages that operation complexity is obviously reduced; code rate control accuracy of encoding a decoded and reduced video again is improved; the treatment process of the H.264 code rate control method has the characteristic of low latency; the H.264 code rate control method has a more obvious effect on video communication with high requirements on real-time performance.