58results about How to "Avoid Huaping" patented technology

The invention relates to a method and system for achieving video monitoring on a mobile terminal and a video processing server. The method comprises the step of receiving video streaming collected by a camera and decoding the video streaming, the step of extracting decoded key frames according to user demands, the step of packing the key frames into a picture format, and the step of pushing the packed picture file to the mobile terminal in a file mode. By means of the method and system for achieving video monitoring on the mobile terminal and the video processing server, the problems of screen blurring and mosaic occurring when the 3G network condition cannot meet the video transmission requirement can be solved .

The embodiment of the invention provides a video data decoding method and device, and the method and device are used in the Internet of scenes. The method comprises the steps: receiving a video sequence sent by a node server, wherein the video sequence comprises an intraframe coding frame; and judging whether packet loss happens to the intraframe coding frame or not: abandoning the video sequence if the packet loss happens to the intraframe coding frame, or else, carrying out the decoding of the intraframe coding frame. According to the embodiment of the invention, the method guarantees the integrity of the video sequence, and avoids the mosaic phenomenon during video playing.

The invention discloses a repair method for an MP4 corrupted file and a storage medium. The method comprises the steps that a reference video is acquired; a sequence parameter set of the reference video is acquired; a stripe head in the corrupted file is decoded according to the sequence parameter set to obtain the stripe type and the frame numbers of video frames; if a value of the stripe type isin a preset range and the frame numbers are continuous, it is judged that the video frames corresponding to the stripe head are legal video frames; the legal video frames in the corrupted file are acquired to obtain a video frame set; frames between every two video frames in the corrupted file are acquired to obtain an audio frame set; the video frames in the video frame set and the audio framesin the audio frame set are ordered according to deviation to obtain a video and audio set; and a repaired file is obtained according to the reference video and the video and audio set. According to the repair method, the repair effect of the MP4 corrupted file can be integrally improved, and the repair support rate of the MP4 corrupted file can be integrally increased.

The invention provides a streaming media file processing method used in a live broadcast system. The method comprises the steps of slicing the streaming media file according to a preset time unit; creating play serial numbers for the slices according to time data, wherein the play serial numbers are used for determining a play order of the slices; and storing the slices and the play serial numbers of the slices, and creating a mapping relationship between the slice and corresponding play serial number. According to the method, the streaming media file is sliced based on the preset time unit, and the play serial numbers of the slices are created according to time data, so that the sliced file corresponding to the paly serial number can be selected and processed directly according to time information, and the sliced file can be operated conveniently in following steps. In addition, the invention further provides a live broadcast system.

The invention discloses a packet loss processing method, a packet loss processing device and packet loss processing system of a video transmission process. The method comprises the following steps: detecting whether a data packet of a video frame has packet loss, the video frame is received at present, if having packet loss, stopping video decoding and informing a video sending end for performing a video updating operation; detecting whether the updated video frame sent by the video sending end is received, and decoding the updated video frame after receiving the updated video frame. According to the technical scheme, the decoding process is stopped immediately while the packet loss is detected for some video frame, the image flower screen phenomenon is avoided, the video sending end is informed for updating the video and the Caton time is reduced to the minimum. The video playing efficiency and the user experience are improved by adopting the method.

The embodiment of the invention discloses a live video processing method and device, a terminal and a storage medium. The method comprises the following steps: in response to a live video playing instruction, starting an operation of creating a video playing view corresponding to a first window, and rendering a live video stream to an off-screen surface in real time; in response to request information of switching the live video playing window from the first window to the second window, creating a video playing view corresponding to the second window; destroying a video playing view corresponding to the first window; and after the video playing view corresponding to the second window is created, shunting and displaying the video on the off-screen surface in the video playing view corresponding to the second window. The video on the off-screen surface is directly shunted and displayed in the video playing view, so that the live video is quickly displayed after the video playing view iscreated, and the phenomena of screen blurring and jamming are avoided.

The invention is appropriate for the field of multimedia data processing technology, where jumping method of network interactive programme on demand, a system and a server for the same are provided. The method comprises the following steps of searching for a key frame similar with a jumping time point required by a user; performing discard processing of starting 2 frames B comprising a picture set of the key frame, filling positions of the starting 2 frames B with empty frames in the picture set; sending media data with the processed picture set as new media data sending position point. According to the invention, with said procedures, media data sent through the network and media data required by the user are more accurate on time, which effectively resolve screen tearing phenomena when jumping broadcast.

The invention provides a control method and a control device based on IPTV playing mode switching. The control method comprises the steps of receiving a mode switching request through a data control channel, wherein the mode switching request is used for requesting playing mode switching from a current first mode to a second mode; acquiring media data from a server through a data flow channel according to address information which is carried in the mode switching request, wherein the data control channel and the data flow channel are independent from each other; testing whether the media data correspond with the second mode; and if not, discarding the media data, and performing decoding on the condition that the received media data correspond with the second mode. According to the control method and the control device, because the acquired media data are processed before decoding, problems of standstill and screen blurring in decoding are prevented.

The invention provides a method for solving a blurred screen phenomenon produced by a video stream transmission system. The method comprises the following steps: importing a message queue and an intermediate proxy, wherein the message queue is used for caching video stream transmitted to a client by a server through a UDP protocol, and the intermediate proxy judges whether the video has been sentto the client after receiving a downloading request and cookie sent by the server; if the video stream has been sent to the client, judging whether the packet loss phenomenon is existent in the videostream cached in the message queue at the first time, if the packet loss phenomenon is existent, re-caching, and continuously enabling the server to send the data cached at the second time to the message cache to cache; when the packet loss phenomenon is inexistent, keeping the video stream of the downloading request received by the server again from caching to the message queue, wherein the intermediate proxy directly takes the video stream in the message queen to send to the client. The existent blurred screen problem due to packet loss or streaming phenomenon is solved, and then the technical problem that excessive bandwidth is wasted since the server resends the video stream is further avoided.

The invention provides a channel switching method and device, which are applied to a digital television. The digital television is connected with a CAM card for descrambling TV programs. The method comprises the following steps: when the digital television plays a scrambled program under a DTV channel, if detecting that the digital television is switched from the DTV channel to another channel, sending a descrambling interrupt instruction to the CAM card, wherein the descrambling interrupt instruction is used for indicating the CAM card to empty descrambling information of the scrambled program. The method can solve the problem of poor user experience caused since a longer audio / video mute state time duration has to be set to prevent the phenomenon of blurred screen or flash screen when the digital television is switched from other channels to the DTV channel.

The invention discloses a method for supporting local refreshing of any display area, and the method comprises the steps: dividing a to-be-compressed image into a plurality of original data blocks, and storing the original data blocks in a frame buffer after compression; obtaining the position and the size of a local refreshing area; judging whether the local refreshing area comprises an incompletely refreshed original data block area or not; if yes, receiving image data of the local refresh area, expanding the incompletely refreshed original data block area into a completely refreshed original data block area, compressing a data block corresponding to the incompletely refreshed original data block area, storing the compressed data block in a frame buffer, compressing a data block corresponding to the expanded original data block area, and storing the compressed data block in a local refreshing buffer; and reading the compressed data in the frame buffer and the local refresh buffer, decompressing the compressed data, performing pixel line splicing processing, and displaying the decompressed compressed data in a display system. The display device can support local refreshing of anydisplay area, and the problems of messy codes, blurred screens and the like in the image display process are effectively avoided.

The invention provides a method and a display device for processing abnormality of a multimedia signalwith the method comprising: determining whether an abnormality occurs in a multimedia signal received through a multimedia signal input interface of a display device (100); outputting a preset when an abnormality occurs in the received multimedia signal The picture signal is sent to the central processor of the display device, and the central processor outputs the preset picture signal to the display screen of the display device, wherein the preset picture signal includes multimedia signal abnormal prompt information (102). According to the above method, when an abnormality occurs in the received multimedia signal, a picture signal including the abnormality prompt information of the multimedia signal is output to the central processor, and the central processor outputs the picture signal to the display screen of the display device, so as to prevent a screen or bright line from appearing on the screen, and the user may also be prompted to see an abnormality in the multimedia signal.

The present invention provides a video signal detection method and device. The method comprises the steps of detecting whether the resolution information of N frames of images in a received video signal is within a first preset range frame by frame; if yes, locking the video signal; detecting whether the resolution information of the images after the N frames of images is within a second preset range frame by frame; if not, unlocking the video signal, wherein the first preset range is greater than the second preset range, and N is a positive integer greater than 1. According to the video signal detection method provided by the present invention, a television system can enter a video playing stage rapidly, and the change of the resolution of the images can be detected timely, thereby avoiding a blank screen or a broken screen, and further improving the stability of the television system.

The invention discloses a live broadcast signal source inductless switching control method and a control system, wherein, the method comprises the following steps: A. the encoding parameter of the original live broadcast signal source is set in an encoder and the decoding parameter of the original live broadcast signal source is sent to a terminal; B. the encoder encodes the live video stream in the original live broadcast signal source and sends it to the terminal, and the terminal decodes and plays the data output from the encoder; C. whether the live broadcast management background sends out switching instruction is checked, if not, step B is executed; if yes, step D is executed; D. the terminal keep playing the original live broadcast video stream, and the live broadcast server retrieves the encoding and decoding parameter of the new live broadcast signal source; E. the encoding parameter of the new live broadcast signal source is set in the encoder, and the decoding parameter of the new live broadcast signal source is sent to the terminal; F. the encoder encodes the live video stream in the new live broadcast signal source and sends it to the terminal; G. the terminal decodesand plays. The invention can smoothly switch to a new live broadcast signal source for playing, avoids the phenomenon that the terminal is subjected to blurred screen and black screen or can not play,and improves the user experience.

The invention discloses a picture display method which is suitable for being executed on a mobile terminal. Pictures comprise a plurality of pictures arranged in sequence, each picture has a corresponding index value, a current picture is displayed on a screen of the mobile terminal. The method comprises the following steps: receiving a sliding operation of a user on the screen of the mobile terminal; determining an index value of a target picture to be finally switched to according to the sliding operation; determining the time for switching from the current picture to the target picture according to the index value of the current picture and the index value of the target picture; and calculating an index value of a next picture to be switched to regularly according to the index value ofthe current picture and the index value of the target picture during the determined time period of switching from the current picture to the target picture, and switching the next picture regularly until the next picture is switched to the target picture. The invention also discloses a corresponding picture display device and a mobile terminal. According to the technical scheme, a user can conveniently, quickly and continuously switch and browse the pictures.

The invention discloses an FPGA (Field Programmable Gate Array), a double-screen television, a startup display method, startup display equipment and a medium. A VBO-RX module in the FPGA is used for sending a first signal to an MCU (Microprogrammed Control Unit) when the VBO-RX module does not receive a stable image signal; a graphic card generation module is used for receiving a starting commandsent by the MCU after receiving the first signal, and generating a LOGO image to be displayed on a lower panel according to graphic card information of the pre-stored LOGO image; and an output end TXmodule is used for receiving a LOGO image to be displayed on the lower panel and sending the LOGO image to the lower panel for display. According to the invention, when the VBO-RX module does not receive a stable image signal, the VBO-RX module is switched to the VBO-RX module; the MCU controls the graphic card generation module to start, and generates the LOGO image according to the pre-stored graphic card information, thereby providing time buffer for stable connection between the image signal and the VBO-RX module, and avoiding the problem of black screen or blurred screen during startup display.

The invention discloses a reversing radar camera shooting device and a camera shooting system based on same. The reversing radar camera shooting device comprises a wire, a plug, and a housing. The housing contains a lens support, multiple terminals fixed in a rear housing, and a PCB connector electrically connected with the wire. A lens and multiple copper shafts extending towards the rear housing are installed in the lens support. Each terminal is equipped with a contact portion in contact with the copper shaft. Each contact portion comprises a central circular ring and contact arms which are uniformly distributed on the periphery of the circular ring and is tangent to the arc of the outer circle of the circular ring. Each circular ring is provided with a gap through which a copper pin passes. After each copper pin passes through the corresponding gap, an abutted portion is fixed in a space defined by the multiple contact arms and each contact arm adheres to the abutted portion. According to the reversing radar camera shooting device, the contact area between the copper shafts and the terminals is enlarged and tangency design enables no gaps between the copper shafts and the terminals so that good electric contact is guaranteed between the copper shafts and the terminals. As a result, a phenomenon of unclear display or no display is prevented when a vehicle reverses.

The invention provides a framing method and device based on an articulated naturality web, and the articulated naturality web comprises an articulated naturality web terminal and an articulated naturality web server connected with the articulated naturality web terminal through the articulated naturality web. The method comprises the steps that the articulated naturality web terminal receives a video information acquisition instruction; the articulated naturality web terminal calls one or more receiving threads to receive video packet information sent by the articulated naturality web server according to the video information acquisition instruction; and the articulated naturality web terminal generates video frame information by adopting the received video packet information. According tothe embodiment of the invention, after the articulated naturality web terminal receives the video information acquisition instruction, one or more receiving threads are called to receive the video packet information sent by the articulated naturality web server, and then the video frame information is generated by adopting the video packet information, so that the unpacked video is restored in the articulated naturality web, the video picture is smoothly played, and the blurred screen caused by incapability of receiving the video data is effectively avoided.

The invention discloses a freight market information management platform. The freight market information management platform comprises a platform server system, a driver information management system, a merchant logistics information LED screen release system, an entrance guard and payment system and a touch query system. The driver information management system, the merchant logistics information LED screen release system, the entrance guard and payment system and the touch query system are connected with the platform server system respectively. Compared with the prior art, the freight market information management platform can conduct systematic management on personnel going into or out of a freight market and conduct unified release of logistics information, so that information acquisition on drivers is accelerated; in addition, by means of a Webservice and single-row double-locking mode, LED information is transmitted in a one-to-many multi-thread mode, and the phenomenon that a blurred screen, a dead screen and the like can happen easily when multiple client sides request for LED information service simultaneously is avoided.

The invention discloses a picture integrity checking method, a communication device and a capsule endoscope system. The picture integrity checking method includes the steps that S1, a sending terminaldivides pictures to be sent into a plurality of data packets, and all or part of each data packet is checked through a first algorithm, and all or part of obtained verification results are taken as afirst check value of the whole pictures to be placed at the position agreed with a receiving terminal in the pictures to be sent; and S2, the receiving terminal reorganizes the pictures based on thedata packets, checking is carried out according to the algorithm and sequence same as the sending terminal on the content of each data packet in the reorganized pictures and a second check value is obtained, the second check value and the first check value are compared and whether the second check value and the first check value are same or not is determined, and if the second check value and thefirst check value are same, the image data are considered complete. The method not only checks the content in each data packet, but also checks the combination and combination order of each data packet, the failure of a screen caused by the wrong combination and combination order of the data packets is effectively avoided, and the image display quality of the receiving terminal is improved.

The invention provides a long strip LED screen. The screen comprises a control card and multiple unit plates. The unit plates comprise multiple first unit plates and multiple second unit plates. The first unit plates are connected to the control card in a first cascading manner so as to form at least one string of first unit plates. The second unit plates are connected to the control card in a second cascading manner so as to form at least one string of second unit plates. The cascading direction of the first cascading manner is opposite to that of the second cascading manner. The at least one string of first unit plates and the at least one string of second unit plates are spliced together into a long strip LED screen body. Thus, the on-load length of the control card of the long strip LED screen can be increased.

A dual-system mainboard intelligent touch panel comprises a supporting frame and a touch screen arranged in the supporting frame. The supporting frame comprises a rear cover. A display drive board module, a computer host, a power panel and a T-CON board are arranged on the rear cover. A CON plate; The display driver board module comprises an Android display driver board and an OPS daughter card. The Android display driver board and the OPS daughter card are spliced and integrated into a whole structure; T. The output end of the Android display driving board is connected with the touch screen;T. The display driving board module is in electric signal connection with the computer host; T. The T-CON board is connected with the Android display driving module through a connecting line terminal;and a power board is electrically connected with the computer host, the T-CON board and the Android display driver board module. Power panel, computer host and T- And the CON board and the Android display driver board module are electrically connected. The display device is simple in structure and convenient to assemble, stable operation of the display effect can be achieved, after-sales maintenance is easy and reliable, the production cost of products is reduced, modular production management can be achieved, and modular standard operation is achieved.

The invention discloses a method for mobile phone to play real-time monitoring video. The method comprises the following steps: front video monitor equipment collects the images of monitoring place and converts the collected images to data signal; a mobile phone client send verification request to the front video monitoring equipment through wireless network and the front video monitoring equipment receives the verification request and carries out verification, wherein if the verification is succeed, the front video monitoring equipment sends video data, and if the verification is not succeed, the front video monitoring equipment gives no processing; the mobile phone client registers callback function and receives video data; the mobile phone client detects and analyzes the received videodata to obtain I frame information; according to the obtained I frame information a jitter buffer area is created to collect and store video data with frame as unit, and when the data bulk reaches jitter buffer lower limit threshold values video data is sent to a decoding module for processing; finally the video data after decoding is played on the mobile phone. The method in the invention has the advantages of fluency, good instantaneity, high sharpness and simple network environment.

The invention discloses a reversing radar camera shooting device and a camera shooting system based on same. The reversing radar camera shooting device comprises a wire, a plug, and a housing. The housing contains a lens support, multiple terminals fixed in a rear housing, and a PCB connector electrically connected with the wire. A lens and multiple copper shafts extending towards the rear housing are installed in the lens support. Each terminal is equipped with a contact portion in contact with the copper shaft. Each contact portion comprises a central circular ring and contact arms which are uniformly distributed on the periphery of the circular ring and is tangent to the arc of the outer circle of the circular ring. Each circular ring is provided with a gap through which a copper pin passes. After each copper pin passes through the corresponding gap, an abutted portion is fixed in a space defined by the multiple contact arms and each contact arm adheres to the abutted portion. According to the reversing radar camera shooting device, the contact area between the copper shafts and the terminals is enlarged and tangency design enables no gaps between the copper shafts and the terminals so that good electric contact is guaranteed between the copper shafts and the terminals. As a result, a phenomenon of unclear display or no display is prevented when a vehicle reverses.

The invention relates to the technical field of automobile instrument panel control, in particular to an automobile instrument self-adaptive backlight control system and method. The control system comprises an automobile body controller which is in communication connection with an automobile instrument system, wherein the automobile instrument system comprises a first single-chip microcomputer, and a configuration module and a display screen which are in communication connection with the first single-chip microcomputer; and the automobile body controller comprises a second single-chip microcomputer, and an illumination sensor in communication connection with the second single-chip microcomputer. The automobile instrument self-adaptive backlight control system and method solve the problems that the existing instrument panel backlight control adopts a setting menu and a small lamp signal for adjustment, but the mode is relatively poor in self-adaptive dimming effect and driving experience, and the driving safety is influenced since the existing backlight display technology is easy to cause a blurred screen fault when exposed under the high-temperature environment .

A display integrated machine comprises a support frame, wherein a display screen is internally arranged in the support frame, and a computer host computer, a power board, a T. CON board and display drive board module; The display driving plate module comprises a display driving plate and an OPS daughter card; The display driving board and the OPS daughter card are merged into an integral structurethrough splicing and are connected with the electric signal of the computer host computer. The output end of the display driving board is connected with the display screen; The T-A CON board and thatdisplay drive module are connected with each other through a connecting line terminal. The power board and the computer host, T. Electrical connection between the CON board and the display drive board module. The invention has the advantages of simple structure, convenient assembly, and avoiding the phenomenon that the connecting wire terminals are oxidized in the environment of long-term high temperature and high humidity to cause the flower screen and the flash screen of the integrated machine. The invention has the advantages of simple structure, convenient assembly, and avoiding the oxidation of the connecting wire terminals in the environment of long-term high temperature and high humidity. Increased productivity. The quality is more guaranteed, and the safety performance is better.

The invention discloses a pressure transmitter under a special environment of-40-200 DEG C. The pressure transmitter comprises a transmitter shell and a circuit board arranged in the transmitter shell, a temperature measuring element is arranged on the circuit board; the ox horn socket of the circuit board is connected with a liquid crystal display device; the circuit board is also provided with asingle-chip microcomputer chip. The transmitter shell is in threaded connection with a sensor connecting device; a pressure sensor is arranged in the sensor connecting device; a pressure change signal is transmitted to the pressure core body through the sensor connecting device; the pressure core body converts the signals into voltage signals and current signals through internal digital bridge signals, the signals are transmitted to the circuit board through the sensor connecting circuit, and the signals are processed, amplified and calculated to obtain digital signals to be displayed on theliquid crystal display device. The pressure transmitter has the characteristics of good metering stability, reliability and accuracy.

A streaming media file processing method and a live streaming system are provided. The method includes slicing a streaming media file into slices according to a preset time unit; creating a playing sequence number for each slice based on time data, where the playing sequence number is used to determine an order of playing back the slices; and storing the slices and the playing sequence numbers of the slices separately and establishing a mapping relationship between the slices and the corresponding playing sequence numbers. The present disclosure slices the streaming media file based on the preset time unit, and creates the playing sequence number for each slice based on time data, and selects and processes the slice file corresponding to the playing sequence number based on the time information, which facilities the subsequent operation to the slice file. In addition, the present disclosure also provides a live streaming system.

The invention discloses an image transmission device, which adopts multiple high-speed serial transceivers to simultaneously transmit one image signal. Since the bandwidth requirements of the high-speed serial transceivers are not high, a low-bandwidth high-speed serial transceiver can be used for transmission. Compared with the way of video codec chip transmission, the cost is reduced. When the input image data bandwidth is high, such as ultra-high-definition resolution signals, 3D signals, etc., the transmission can be completed by increasing the number of high-speed serial transceivers. The device also performs phase synchronization encoding on the image signal at the sending end, and adopts corresponding measures at the receiving end to ensure phase synchronization between multiple transceivers, so as to avoid blurred screen phenomenon caused by image data misalignment.