39 results about "Real time messaging protocol" patented technology

The invention provides a real-time issuing method and a real-time issuing system of a safe and economic operation state of a thermal power plant. The method comprises the following steps: building a real-time communication protocol among SIS, MIS, a video monitoring system and 3D-GIS; building a three-dimensional model indicating a production area view of the thermal power plant by utilizing a 3D-GIS technology to ensure that the three-dimensional model corresponds to equipment, heat distribution pipelines, valves and the like in a real production environment; processing data, video pictures, expert knowledge bases and the like pushed by the SIS, 3D-GIS and the video monitoring system by a GIS server and integrating to three-dimensional model corresponding positions; supplying the safe and economic operation state and fault solution strategies of location point equipment or systems. According to the real-time issuing method and the real-time issuing system, the complete coverage of the safe and economic operation state monitoring requirements and fault solution strategies of the unit are achieved, so that the occurrence of major accidents caused by ignorance of data abnormity due to human factors can be greatly reduced, and the safe and economic operation and the management level of the thermal power plant are effectively improved.

The invention discloses a method and a device for broadcasting recorded screen live on the basis of a mobile device, a mobile device and a live broadcasting system. An application interface OpenGL ES is utilized to acquire first screen data corresponding to the screen picture of the mobile device according to a preset first frame rate, the acquired first screen data are encoded, so that encoded first video data are obtained, and the first video data are encapsulated into a first RTMP (Real-Time Messaging Protocol) data packet. Thus, by acquiring screen picture according to the preset frame rate, video data with a stable frame rate can be obtained, video data with a stable code rate can be obtained by encoding the video data, and thereby the smoothness of the video data played by a viewing side player can be improved.

The invention provides an audio-video sharing method and system. According to the audio-video sharing method and system provided by the invention, a particular sharing transmission means is used; storage and sharing release processing works of audio-video data are completed through an FMS (Flash Media Server); acquired audio and video data after being subjected to encoding through a streaming medium are uploaded with an RTMP (Real Time Messaging Protocol) to the FMS by using an upload terminal; the uploaded audio and video data after being subjected to combination and encoding are released with the RTMP to a share user terminal by using the FMS so that the audio-video data upload and sharing release are simultaneously with real-time transmission performance and the real-time sharing of the audio-video data can be realized; the problem of occupation of the storage space of two-side terminals of the upload and the sharing is solved with the help of the RTMP so that a long time audio-video sharing of a mobile terminal is ensured to be possible; and the audio-video sharing method and system are combined with a sharing service, so that a user is convenient to timely request on the shared audio-video data at different times and places or on terminals, and the service application range is promoted to expand.

A system is disclosed for providing browser-based VOIP services. The system includes a web server, a database server, a rendezvous server, and a streaming media server. The web server is configured to provide a web page for a user computer and a recipient computer to set up a call connection based on a computer-to-computer (CC) call link sent from the user computer to the recipient computer. The database server is coupled to the web server to provide user data. Further, the rendezvous server is configured to support a real time media flow protocol (RTMFP) to enable direct peer-to-peer communication between the user computer and the recipient computer to establish the call connection. The streaming media server is configured to support a real time messaging protocol (RTMP), an RTMP tunneled (RTMPT), and an RTMP secured (RTMPS) and to be a fail-over for the rendezvous server. Further, the CC call link is created by the web server upon a request from the user computer and sent to the recipient computer.

This invention relates to a transmission method for video flows in an interactive multiple view points video system, which first of all sets up elemental data of the multiple view points video flow and stores them into a related file and sets up session relation between the customer end and a video server based on the file, a session inform protocol and a session start protocol. The customer end transmits the view point interaction request information to the video server by the session start protocol, the server utilizes the real time transmission protocol to send the video flow meeting the request of the customer end to the customer, which decodes the received video flow.

The invention discloses a wireless video monitoring method suitable for live broadcast on a mobile terminal of an iOS system. The method comprises the following steps: 1, recording and storing a video through a camera, acquiring a YUV (Luma and Chroma) video image through an SDK (Software Development Kit), and transmitting the YUV video image to a video push work station; 2, converting the acquired YUV video image into RGB (Red Green Blue) Bitmap picture file streams; 3, packaging the RGB bitmap picture file streams into FLV (Flash Video) video data streams; 4, pushing the FLV video data streams to a Rtmp (Real Time Messaging Protocol) server through a Rtmp protocol; 5, converting the FLV video data streams into a TS sliced file of an M3U8 video through the Rtmp protocol, and transmitting the TS sliced file to a M3U8 server; 6, transmitting a video connection request through a video monitoring terminal to obtain a video playing address, wherein the video playing address points to the TS sliced file of the M378 video stored in the M3U8 server. By adopting the wireless video monitoring method, the problem of equipment compatibility is solved, and the monitoring terminal of the iOS system can directly access videos recorded by recording equipment provided by different video equipment producers.

The invention discloses an RTMP (Real Time Messaging Protocol) and RUDP (Reliable User Data Protocol) combined real-time media streaming live broadcasting system. The RTMP and RUDP combined real-time media streaming live broadcasting system comprises a physical structure and a logic structure; the physical structure adopts three stages of switched networks; a primary switched network is a media transmission server MTS and is used for receiving streaming media information transmitted by an RTMP; a secondary switched network is a media streaming server MSS and is used for receiving media streaming information subjected to flow pushing by the MTS through the RTMP; a tertiary switched network is a user interface layer and is used for accessing the MSS; and the logic structure adopts a four-layer structure and is sequentially provided with a Linux kernel, a network layer, an MTS layer and an access layer from bottom layer to top layer. According to the RTMP and RUDP combined real-time media streaming live broadcasting system disclosed by the invention, distribution efficiency of the integral system can be increased by double, transmission quality and transmission efficiency of audio/video media streaming in the live broadcasting system in a complex network environment are improved, and moreover, a client program does not need to be installed.

The invention provides an RTMP (Real Time Messaging Protocol) stream-sending real-time live streaming system, which is used for live streaming interaction of a multi-people video conference. The system comprises a video conference cloud unit, a recording cloud unit and a live streaming cloud unit that are connected in sequence. The video conference cloud unit comprises a communication authentication module, a function module and an MCU resource module. The recording cloud unit corresponds to multiple recording account numbers, and adds a certain recording account number into the video conference cloud unit through an SIP, an H.323 protocol or an RTP. The communication authentication module verifies and receives a resource request and a recording account number from a user terminal, the resource request including audio and video data and user information. The function module conducts unified scheduling management on MCU resources in the MCU resource module according to differences of the audio and video data, and then an MCU conducts full decoding and full coding on the audio and video data, so adaption is realized and adapted audio and video streams are generated. Moreover, the recording cloud unit records and transcodes the adapted audio and video streams matching the recording account number, generates an audio and video file, and stores the file or transmits the file to the live streaming cloud unit through an RTMP.

The invention relates to a dispatching method of a timer, in particular to a dispatching method of an annular propulsion timer which carries out real-time communication protocol conversion, data collection and calculation in a secondary real-time monitoring device of an electric system. According to the requirements of the system, the dispatching method comprises the following steps: collecting anintegral number; ensuring and establishing head pointers of W=2<m> timer queues; establishing an annular queue; establishing a global tickcount variable with initialization as 0; and scanning, addingand deleting the timer by the tickcount variable, and the like. The dispatching method uses space to exchange time, greatly increases the scanning efficiency by establishing W+1 global variables andcircularly propelling the tickcount simultaneously and can quickly position through the tickcount because a large number of timers are dispersed in the W queues, thereby obviously increasing the adding and deleting efficiency.

The invention discloses a system and method for playing streaming media. According to the method, a database stores an m3u8 display list file and a corresponding TS file; a client transmits a request of playing the streaming media to a program processing unit through a Flash player; the program processing unit transmits the corresponding request receipt of the request of playing the streaming media; after receiving the request receipt, the client sends a quest of playing the streaming media to an FMS streaming media server through the Flash player; the FMS streaming media server transmits the streaming media corresponding to the request of playing the streaming media to the Flash player through an RTMP protocol (Real Time Messaging Protocol); and then the Flash player plays the streaming media. With the adoption of the system and method disclosed by the invention, the problem of synchronously supporting an Apple terminal and the Flash player through a set of database systems and a media streaming content can be solved; and the cost of operation of a website is reduced in the field of internet video play application required for synchronously supporting the Apple terminal and the Flash player.

The invention relates to a method for controlling a remote device by using a real-time message, which comprises the following steps: at a monitored end, adopting a commercial power adapter containing a plurality of commercial power output plug interfaces to provide working power supplies for each network device and each peripheral device so that the electric power input line of each network device and each peripheral device singly correspond to and are connected in each plug interface of the commercial power adapter respectively; connecting the commercial power adapter provided with real-time communication protocol software into a network to monitor whether a transmitted real-time message exists between each network device and each peripheral device and a monitoring end provided with corresponding real-time communication protocol software online in real time; and transmitting the monitored real-time message to a corresponding end required to receive so as to achieve the aim that the monitoring end performs remote monitoring on the network devices and the peripheral devices at the monitored end. The invention also discloses a control device for achieving the method. The method adopts a real-time message communication technique so that a user can only use common real-time communication software at the monitoring end to monitor the remote device through bidirectional interaction commands.

The embodiment of the invention discloses an unmanned ship cloud control system based on a 4G Internet technology. The system is applied to an unmanned ship. The monitoring system comprises a shipborne system, a cloud server forwarding system and a ground station control system. Through adoption of double 4G channels, an information transmission rate is high and the timeliness is high. Multimedia data transmission is supported and the system is applied to a relatively complex unmanned ship application occasion. Through adoption of a 4G video communication module and an RTMP (Real Time Messaging Protocol) audio/video transport protocol, video streams are forwarded to a cloud server. Compared with an existing unmanned ship communication system through adoption of a GPRS communication technology, the system has the advantage of higher timeliness. The unmanned ship is controlled through adoption of the 4G Internet technology. Compared with an existing communication mode of controlling the unmanned ship through adoption of a digital radio station, the mode has the advantages that the control distance is further, a rate is higher, the deployment is easier, and the realization is simpler. Through adoption of a cloud data forwarding technology, data traffic at an unmanned ship end can be reduced, the system energy consumption of the unmanned ship is reduced, and the working time of the unmanned ship is prolonged.

The present invention provides a vehicle-mounted video live broadcast system based on RTMP, including a driving recorder, an RTMP server, and a terminal. The driving recorder is installed on the vehicle, and the terminal includes an application APP. The application APP of the terminal sends a trigger signal to the RTMP server, and the RTMP server sends the trigger signal to the RTMP server. Send it to the driving recorder, wherein the trigger signal is used to control the driving recorder to detect the battery voltage of the vehicle; the driving recorder detects whether the battery voltage of the vehicle is greater than or equal to the voltage threshold according to the trigger signal; when the detected voltage is greater than or equal to the voltage When the threshold is reached, the driving recorder starts the recording function and/or the live video function and enters the working state; when the detected voltage is lower than the voltage threshold, the driving recorder is powered off and shuts down. The invention also provides an RTMP-based method for on-vehicle video live broadcast, which can provide low-latency video live broadcast, protect batteries, and provide vehicle safety.

The invention provides an RIA (Rich Internet Applications)-based monitoring method which comprises the following steps: A. a server establishes communication channels with a plurality of monitors, and a terminal machine establishes a communication channel with the server; and B. a central monitoring unit installed in the server concurrently processes a business logic processing step, a real-time data push step and a real-time data receiving step, and the central monitoring unit pushes real-time data to a user operation platform installed in the terminal machine in such a way that long-connection data push is combined with an RTMP (Real Time Messaging Protocol).

The invention provides a plug-in-free video previewing method based on the RTMP (real time message protocol). The plug-in-free video previewing method comprises the following steps: handshake data of the RTMP is encrypted with an encryption algorithm; a server obtains data type requested by a client through an interaction instruction; an RTMP server judges the type of a coded video, performs selective acception and rejection, packages audio and video data and only sends a coding unit related with played pictures to the client. The plug-in-free video previewing method based on the RTMP has the beneficial effects that plug-in-free video previewing in a browser can be realized in different operating systems, network bandwidth can be reduced, client encoding workload is reduced, and playout delay of the client is reduced; connection of an illegal client is avoided by encrypting the handshake data, and the security of the server is improved.

The invention discloses an RTMP (Real Time Messaging Protocol) live broadcast playback method and system. The RTMP live broadcast playback method comprises the steps: according to pre-configuration, downloading an RTMP audio and video stream and decoding the RTMP audio and video stream to obtain an audio and video file; according to a pres-set strategy, coding the audio and video file and generating audio and video data; generating an index file header of the audio and video data, and encapsulating the index file header and the audio and video data into a playback audio and video file; and publishing the playback audio and video file through a server. The scheme of the RTMP live broadcast playback method can convert the RTMP live streaming into live streaming with formats, such as flv, and can realize the flv on-demand playback function, so that the user experience degree of the user is greatly improved.

The invention discloses a method, a device and a system for accessing a webpage chatting room so as to reduce cost of deployment of voice servers. The method includes the steps that an intelligent DNS (domain name server) distributes an HTTP (hyper text transport protocol) request orientating to a central web server to a reverse proxy server conformed to type of a visiting user network; the reverse proxy server brings computer room information while redirecting the HTTP request to the central web server; the central web server determines a user type of a web visitor according to the computer room information brought with the HTTP request; when a user accesses to a chatting room channel, the central web server distributes a channel acceleration server for the user so as to quickly create a TCP (transmission control protocol) connection and transmit an RTMP (real-time messaging protocol) voice data stream when central web server judges a voice server of an objective chatting room is not conformed to the type of the user network.

Described herein is a method and system for charging and fee sharing based on an actual playing amount of network videos. In this system, an order statistic unit stores a number of monthly orders, a corresponding monthly order fee, starting and ending time of each monthly order, a channel fee sharing unit stores a channel fee value or ratio, a network video player plays network videos using an RTMP (real time messaging protocol) of streaming media technology, a traffic recording unit records the playing amount of each network video content provider's programs and a total playing amount of all network videos, and a charging unit obtains data stored in the order statistic unit, the channel fee sharing unit and the traffic recording unit to calculate the fee to be shared with each network video content provider. The charging system according to the invention not only reduces the calculation complexity, but also enhances the system scalability, providing a simple and reliable way for large-volume data transmission.

The embodiment of the invention discloses a multimedia data transmission method, a client and a server, and relates to the multimedia technology application field. The method comprises the steps of establishing a Real Time Streaming Protocol (RTSP) session connection by the client and the server; according to the RTSP session connection, determining a transmission mode when transmitting multimedia data with the server by the client; transmitting a multimedia data operation request to the server by the client; under the transmission mode, receiving the multimedia data which is transmitted by the server by the client; and displaying the multimedia data by the client. The multimedia data transmission method provided by the invention solves the problems of delay defect when transmitting the multimedia data by the existing RTMP (Real Time Messaging Protocol) and the reduction of user experience; and besides, the multimedia data transmission method also realizes the autonomous control over the multimedia data and improves the real-time performance.

The invention provides a method and a device for suspending RTMP (Real Time Messaging Protocol) stream. At a release client side, the method comprises the following steps of sending a first message to a server, wherein the first message is used for indicating that the RTMP stream is to be suspended; and suspending release of the RTMP stream. As compared with the prior art, according to the invention, the RTMP is extended and enabled to be capable of supporting a function of suspending the RTMP stream. With the method and the device provided by the invention, functions of the RTMP are more perfect, and improvement of user experience is facilitated.

The invention discloses an RTMP (Real Time Messaging Protocol) live broadcast stream to HTTP FLV live broadcast stream real-time conversion system and a working method thereof. The method comprises the steps that a data separation module receives RTMP live broadcast streams in real time, separates script tags and audio/video data from the RTMP live broadcast streams and stores the script tags andaudio/video data to a message buffer module; a coder module takes out the audio/video data from the message buffer module and carries out FLV format coding on the audio/video data; and after an HTTP service module receives an HTTP FLV live broadcast stream playing request of a playing end (6), the HTTP service module obtains corresponding live broadcast streams from the coder module and sends thelive broadcast streams to the playing end (6). According to the system and the method, on the basis of the existing RTMP live broadcast service, the HTTP FLV live broadcast is seamlessly expanded, sothe device investment and technical modification cost are greatly reduced. Under the condition of not increasing any device and modifying a protocol, the system and the method are seamlessly connectedwith an existing CDN network, live broadcast demands of a PC and a mobile terminal also can be satisfied, moreover, the image shake problem is solved, and an image second opening method is realized.

The invention discloses a video live broadcasting method and live broadcasting system. The video live broadcasting method comprises the steps that: client equipment sends a request message to a publicnetwork server, wherein the request message is used for requesting server side equipment to acquire audio video data for video live broadcasting; the public network server establishes a data interface and establishes a communication connection with the server side equipment by the data interface; the public network server acquires the audio video data from the server side equipment, packages theacquired audio video data into a data packet of a RTMP (Real Time Messaging Protocol) or a RTSP (Real Time Streaming Protocol), and sends the data packet to a video server; and the video server receives the data packet, and transmits the data packet to the client equipment. Therefore, the video live broadcasting method and live broadcasting system can solve the problem of limited performance of hardware equipment, a network bandwidth and the like of an existing server side, and can simultaneously support multi-user interactive broadcasting so as to improve a live broadcasting effect.

The invention discloses a media resource processing method and device for RTSP (Real Time Streaming Protocol) to RTMP (Real Time Messaging Protocol), relating to the technical field of video processing and optimizing the processing process of RTSP to RTMP, the method comprises the following steps: when acquiring streaming video data through the RTSP, respectively adding decoding timestamps to at least two data frames according to the sequence of the continuously received at least two data frames; storing the at least two data frames in a preset data frame cache linked list, wherein the at least two data frames in the preset data frame cache linked list are sorted according to the sequence of the corresponding original timestamps; according to the sorting positions corresponding to the at least two data frames, determining display timestamps corresponding to the at least two data frames; calculating the offset corresponding to the data frame according to the decoding timestamp and the display timestamp corresponding to the data frame, and adding the offset into the message header information of the data frame; and gradually extracting the data frames pointed by the head pointer from the preset data frame cache chain table, and pushing the data frames to a server supporting the RTMP protocol.