Summary of the invention
The objective of the invention is to concentrate in order to solve existing traditional high risk industries the problems referred to above of audio-video monitoring existence, proposed a kind of long-range real-time audio and video data transfer controller.
Technical scheme of the present invention is: a kind of long-range real-time audio and video data transfer controller specifically comprises: processor module, audio collection module, video acquisition module, audio/video coding module, audio/video decoding module and network communication module, wherein,
Described processor module is used for audio, video data is processed, and the protocol interaction of processing control apparatus and monitor supervision platform;
Described audio collection module is used for gathering voice data under the control of described processor module;
Described video acquisition module is used for gathering video data under the control of described processor module;
Described audio/video coding module is used for voice data and the coding video data to collecting;
Described audio/video decoding module is used for the audio, video data that monitor supervision platform sends is decoded;
Described network communication module is used for network service, comprises the transmitting-receiving of protocol data and the transmitting-receiving of audio, video data.
Further, described transmission control unit also comprises audio-frequence player device and video display apparatus, described audio-frequence player device is used for the decoded audio signal of playing audio-video decoder module, and described video display apparatus is used for showing the decoded vision signal of audio/video decoding module.
Beneficial effect of the present invention: transmission control unit of the present invention adopts the bypass access way, can realize in the existing centralized monitoring system of seamless access, realize carrying out as required the real-time audio and video Data Transmission Controlling, effectively reduce centralized monitor network data transmission amount, saved Internet resources; This device have the audio frequency and video interactive response rapidly, the audio-visual quality advantages of higher; Monitor supervision platform can be installed to this by network connection, can realize the audio, video data of monitoring the scene is carried out real-time Transmission control, and support that monitor supervision platform and the audio frequency and video of monitoring the scene are interactive.
Embodiment
The present invention is described further below in conjunction with the drawings and specific embodiments.
Long-range real-time audio and video data transfer controller of the present invention is on the basis of high risk industries tradition audio-video monitoring, increased audio frequency and video interaction, the real-time data transmission control function of monitor supervision platform with the monitoring scene, structural representation as shown in Figure 1, specifically comprise: processor module, audio collection module, video acquisition module, audio/video coding module, audio/video decoding module and network communication module, wherein, described processor module is used for audio, video data is processed, and the protocol interaction of processing control apparatus and monitor supervision platform; Described audio collection module is used for gathering voice data under the control of described processor module; Described video acquisition module is used for gathering video data under the control of described processor module; Described audio/video coding module is used for voice data and the coding video data to collecting; Described audio/video decoding module is used for the audio, video data that monitor supervision platform sends is decoded; Described network communication module is used for network service, comprises the transmitting-receiving of protocol data and the transmitting-receiving of audio, video data.
Interactive for realizing audio frequency and video, the transmission control unit here also comprises audio-frequence player device and video display apparatus, described audio-frequence player device is used for the decoded audio signal of playing audio-video decoder module, and described video display apparatus is used for showing the decoded vision signal of audio/video decoding module.
Here processor module can be connected with audio collection module, video acquisition module, audio-frequence player device, video display apparatus, network communication module respectively by audio collection interface, video acquisition interface, audio output interface, video output interface, Ethernet interface.
The concrete processor that adopts high performance ARM+DSP, Leonardo da Vinci's framework of the processor module here.
The transmission control unit here also comprises power management module, for processor module provides supply power voltage.
Audio frequency and video adopt respectively AAC(Advanced Audio Coding) and compressed encoding form H.264, audio/video encoding/decoding adopts the high-performance processor of ARM+DSP Leonardo da Vinci framework to cooperate corresponding audio/video encoding/decoding functional module to carry out, the real-time audio and video transfer of data is based on RTP (Real-time Transport Protocol, RTP) and RTCP control protocol (RTP Control Protocol, RTCP), guarantee real-time and the stability of Internet Transmission.
After this device access supervisory control system, the audio collection interface connects audio collecting device, and the video acquisition interface connects video capture device, is responsible for respectively gathering audio, video data; The audio/video coding module is responsible for the audio, video data that device gathers is unified compressed encoding.
Monitor supervision platform is by this device of network insertion, and this device connects audio ﹠ video equipment by audio-video interface.Monitor supervision platform utilizes the platform management interface to realize the real-time control that this device audio, video data is transmitted, and realizes the real-time audio and video interaction that monitor supervision platform and monitoring are on-the-spot.
Fig. 2 has provided long-range real-time audio and video data transfer controller audio, video data transmission schematic diagram, monitor supervision platform sends protocol instructions by network to this device, after this device is received instruction, resolve command content, press command request and gather audio, video data, and the audio, video data brought of processing platform, realize that audio frequency and video are interactive.Relate to several data in the data transmission procedure mutual, specifically comprise following several:
A. the protocol instructions between monitor supervision platform and this device is mutual, comprises the dependent instruction of internal communication protocol using definition in the agreement, it is resolved and processing and instruction feedback by this device;
B. during this device sending and receiving audio, video data, need finish the encoding and decoding work of audio, video data;
During C. by the Internet Transmission audio, video data, need realization to the encapsulation packing of data.
Fig. 3 has provided the workflow schematic diagram of long-range real-time audio and video data transfer controller of the present invention.After the device power, finish initialization, trial and monitor supervision platform are set up network connection, after connection is successfully established, wait for that platform issues the audio/video communication instruction, after instruction arrives, resolve instruction, according to command content warning tone video acquisition module image data, the data that collect are carried out compressed encoding, send by network; The audio, video data that the while receiving platform issues is decoded, and decoded signal is outputed to external playback equipment, when platform issues stop tone video communication instruction, close the audio/video communication network connection, the stop tone video data acquiring, and wait for next time audio/video communication instruction.
The client can be at the remote monitoring platform interface, and to this device, the real-time audio and video transfer of data of the high-risk environment such as control far-end coal mine is set up the real-time audio and video interaction by network connection.
This device lower end connects audio-video acquisition equipment; The device upper end is by the network connection remote monitoring platform.After the device operation, monitor supervision platform can as required, be selected to set up two-way real-time audio and video interaction with the monitoring scene.This device self is light, is easy to install, and supports online bypass to access in the existing monitor network, existing monitor network environment is not damaged, and takes full advantage of simultaneously existing network audio frequency and video relevant device, realizes real-time audio and video communication.
The user can be linked into the seamless bypass of this device in the centralized monitoring system of the high-risk environment such as existing coal mine, take full advantage of the audio, video data collecting device that existing monitor network has possessed, realize that real-time Data Transmission and the audio frequency and video of carrying out as required are interactive; The real-time audio and video Data Transmission Controlling that can be widely used in the high-risk environment such as coal mine is easy to expand to other real-time audio and video monitoring fields simultaneously; This device can also high effective integration existing network audio ﹠ video equipment, such as video camera, video display apparatus, audio amplifier, microphone etc., can be widely used in the high risk industries centralized monitoring system.
Long-range real-time audio and video data transfer controller of the present invention has realized that monitor supervision platform is interactive with the real-time audio and video at monitoring scene, and the data acquisition transmission is controlled, and the audio frequency and video response has improved audio frequency and video service quality rapidly, has reduced the unnecessary wasting of resources.
Those of ordinary skill in the art will appreciate that, embodiment described here is in order to help reader understanding's principle of the present invention, should to be understood to that protection scope of the present invention is not limited to such special statement and embodiment.Those of ordinary skill in the art can make various other various concrete distortion and combinations that do not break away from essence of the present invention according to these technology enlightenments disclosed by the invention, and these distortion and combination are still in protection scope of the present invention.