CN103997597A - Method and apparatus for real-time transmission of camera audio-video stream - Google Patents
Method and apparatus for real-time transmission of camera audio-video stream Download PDFInfo
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- CN103997597A CN103997597A CN201310054613.9A CN201310054613A CN103997597A CN 103997597 A CN103997597 A CN 103997597A CN 201310054613 A CN201310054613 A CN 201310054613A CN 103997597 A CN103997597 A CN 103997597A
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Abstract
The invention relates to a method and apparatus for real-time transmission of a camera audio-video stream. Compared with the prior art, the provided real-time transmission method is characterized in that: after an audio-video data stream divider receives a compressed audio-video data stream sent out by an audio-video processor, a handover module of the audio-video data steam divider transmits the compressed audio-video data stream to a USB interface according to a dividing instruction; a wireless communication module connected with the USB interface receives the compressed audio-video data stream from the USB interface and transmits the compressed audio-video data stream to an external device by a wireless transmission way. According to the invention, the handover module is arranged in the audio-video data stream divider. A controller can be used for sending out a dividing command to control the handover module that only transmits the audio-video data stream to the USB interface directly; and then the wireless communication module transmits the audio-video data stream to the external device by the wireless way. Therefore, the real-time transmission speed of the dynamic picture between the camera and the external terminal is accelerated; the delay time is substantially reduced; the real-time performance is enhanced; and the transmittable data volume is increased.
Description
Technical field
The present invention relates to digital camera, particularly a kind of method and device of digital camera video-audio data stream real-time Transmission.
Background technology
At present, in electronic equipment for consumption field, digital camera and other electronic products are as more and more extensive in the video-audio data stream interconnectivity and sharing between mobile phone, computer, and the high-speed radio transmission of dynamic menu is become to a hot technology.Currently realize between mobile phone and mobile phone, utilized Wi-Fi to carry out the wireless transmission of dynamic menu between mobile phone and computer network.But they normally connect digital camera by dedicated data line and other electronic products carry out transmitting audio-video data flow, carry inconvenience and connect loaded down with trivial details.Adopt wireless transmission video/audio data flow to be limited by video-audio data stream to be input to the slow-footed impact of Wi-Fi communication module, cause wireless transmission speed slow and audio-visual of poor quality.
Between existing camera and mobile phone Wi-Fi, carry out in the Radio Transmission Technology scheme of dynamic menu between camera and computer network, as shown in Figure 1, owing to the video-audio data stream of shooting with video-corder first need to being pre-stored in the memory of camera, be transferred to camera outside via camera memories again, therefore cause video-audio data flow transmission speed slow, real-time is poor, generally postpones more than 4 seconds.There is no at present the high speed real-time radio video-audio data flow transmission application product between good digital camera and computer, mobile phone.
Summary of the invention
The object of the present invention is to provide that a kind of transmission speed is high, real-time good, postpone few audio-visual flow transmission method and apparatus.
For achieving the above object, the present invention is by the following technical solutions:
The audio-visual stream live transmission method of a kind of camera, comprises the following steps:
S1, controller sends to video module by control interface by control command;
S2, video module starts operation after receiving the control command of controller, the dynamic analog video of shooting with video-corder or audio signal is converted into the digital audio-video dynamic dataflow of normal format;
S3, sound processing device receives from starting operation after the control command of video module, and the video-audio data that the digital audio-video dynamic dataflow compression of the normal format of receiving is generated to compression flows and is transferred to video-audio data diverting flow device;
S4, controller sends shunting instruction to video-audio data diverting flow device;
S5, after the video-audio data stream of the compression that video-audio data diverting flow device reception sound processing device sends, the handover module of video-audio data diverting flow device according to shunting instruction by compression video-audio data flow transmission to USB interface, the wireless communication module being connected with USB interface receives the video-audio data stream of compression from USB interface, and the video-audio data stream of compression is transferred in external equipment with wireless transmission method.
Step S5 comprises the following steps:
S51, the handover module of video-audio data diverting flow device judges whether shunting instruction requires the video-audio data stream of compression only to transfer to USB interface, if so, the video-audio data stream of compression is only transferred to USB interface; If not, the video-audio data stream of compression is transferred in USB interface and memory simultaneously.
In step S3, the video-audio data that the digital audio-video dynamic dataflow compression of the normal format of receiving is generated the compression of two or more different-format by sound processing device flows and is transferred to video-audio data diverting flow device.
In step S51, the handover module of video-audio data diverting flow device transmits after the video-audio data flow point of the compression of different forms being assigned to different transmission channels according to shunting instruction again.
The audio-visual stream real-time Transmission of a kind of camera device, comprising:
Controller, for sending instruction to other modules;
Video module, for receiving and the control command of transmitting controller input, is converted into the dynamic analog video of shooting with video-corder or audio signal the digital audio-video dynamic dataflow of normal format;
Sound processing device, for receiving the order from video module, the video-audio data stream that the digital audio-video dynamic dataflow compression of the normal format of receiving is generated to the compression of two or more different-format sends;
Video-audio data diverting flow device, for receiving the instruction that self-controller sends, the video-audio data stream of the compression of the different-format of two or more that receives that sound processing device sends, and video-audio data stream that will the compression of different-format transmits after distributing different transmission channels again;
The audio-visual stream real-time Transmission of camera device also comprises USB interface and wireless communication module, controller connects respectively video module and video-audio data diverting flow device, video module connects respectively controller and sound processing device, sound processing device connects respectively video module and video-audio data diverting flow device, video-audio data diverting flow device connects respectively controller, sound processing device and USB interface, and USB interface connects respectively video-audio data diverting flow device and wireless communication module.
The audio-visual stream real-time Transmission of camera device can also comprise memory, and memory connects video-audio data diverting flow device.
Controller is ARM Type C PU, MIPS Type C PU, 51 Type C PU, PIC Type C PU, AVR Type C PU, MSP430 Type C PU, Power PC or X86 Type C PU.
Wireless communication module is Wi-Fi communication module, bluetooth communication module, 2G communication module, 3G communication module or 4G communication module.
Memory is camera body internal memory, external SD card memory, external TF card memory, external USB flash disk or external memory stick.
The present invention's beneficial effect is compared with prior art:
(1) the present invention is provided with handover module in video-audio data diverting flow device, can utilize controller to send shunting order controls handover module and only video-audio data stream is directly transferred to USB interface and be then sent to external equipment from wireless communication module with wireless mode, improve the real-time Transmission speed of the dynamic menu between camera and exterior terminal, greatly reduce time of delay, strengthen real-time, increased and can pass data volume.
(2) the present invention generates the video-audio data stream of the compression of two or more different-format in the compression of sound processing device, video-audio data diverting flow device will transmit after transmission channels different the video-audio data stream reasonable distribution of the compression of different-format again, has further improved the transmission speed of video-audio data stream.
Brief description of the drawings
Fig. 1 is the audio-visual stream wireless real-time transmission of existing camera schematic flow sheet
Fig. 2 is the flow chart of the audio-visual stream live transmission method of camera
Fig. 3 is the concrete steps figure of step S51 in the audio-visual stream live transmission method of camera
Fig. 4 is the circuit block diagram of the audio-visual stream real-time Transmission of camera device
Embodiment
In order to more fully understand technology contents of the present invention, below in conjunction with specific embodiment, technical scheme of the present invention is further introduced and explanation.
The audio-visual stream live transmission method of camera of the present invention, as shown in Figure 2, comprises the following steps:
Step S1:ARM controller sends to video module by control interface by control command;
Step S2: video module starts operation after receiving the control command of ARM controller, is converted into the dynamic analog video of shooting with video-corder or audio signal the digital audio-video dynamic dataflow of normal format;
Step S3: sound processing device receives from starting operation after the control command of video module, the video-audio data that the digital audio-video dynamic dataflow compression of the normal format of receiving is generated to the compression of two or more different-format flows and is transferred to video-audio data diverting flow device;
Step S4:ARM controller sends shunting instruction to video-audio data diverting flow device;
Step S5: after the video-audio data stream of the compression that video-audio data diverting flow device reception sound processing device sends, the handover module of video-audio data diverting flow device according to shunting instruction by compression video-audio data flow transmission to USB interface, the wireless communication module being connected with USB interface receives the video-audio data stream of compression from USB interface, and the video-audio data stream of compression is transferred in external equipment with wireless transmission method.
Step S5 comprises step S51, step S51 idiographic flow as shown in Figure 3:
S51, the handover module of video-audio data diverting flow device judges whether shunting instruction requires the video-audio data stream of compression only to transfer to USB interface, if so, the video-audio data stream of compression is only transferred to USB interface; If not, the video-audio data stream of compression is transferred in USB interface and memory simultaneously.
In step S51, the handover module of video-audio data diverting flow device transmits after the video-audio data flow point of the compression of different forms being assigned to different transmission channels according to shunting instruction again.
The audio-visual stream real-time Transmission of camera of the present invention device, as shown in Figure 4, comprising:
ARM controller 10, for sending instruction to other modules;
Video module 20, the control command of inputting for receiving and forward ARM controller 10, is converted into the dynamic analog video of shooting with video-corder or audio signal the digital audio-video dynamic data of normal format;
Sound processing device 30, for receiving the order from video module 20, the video-audio data stream that the digital audio-video dynamic dataflow compression of the normal format of receiving is generated to the compression of two or more different-format sends;
Video-audio data diverting flow device 40, for receiving the instruction of sending from ARM controller 10, the video-audio data stream of the compression of the different-format of two or more that receives that sound processing device 30 sends, and video-audio data stream that will the compression of different-format transmits after distributing different transmission channels again;
The audio-visual stream real-time Transmission of camera device also comprises USB interface 60 and Wi-Fi communication module 70, ARM controller 10 connects respectively video module 20 and video-audio data diverting flow device 40, video module 20 connects respectively ARM controller 10 and sound processing device 30, sound processing device 30 connects respectively video module 20 and video-audio data diverting flow device 40, video-audio data diverting flow device 40 connects respectively ARM controller 10, sound processing device 30 and USB interface 60, and USB interface 60 connects respectively video-audio data diverting flow device 40 and Wi-Fi communication module 70.
ARM controller 10 sends enabled instruction to video module 20.Video module 20 receives enabled instruction, the dynamic analog video and audio signal of shooting with video-corder is converted into the digital audio-video dynamic dataflow of normal format, and starting command is forwarded to sound processing device 30.Sound processing device 30 receives from starting operation after the starting command of video module 20, the digital audio-video dynamic dataflow of the normal format of receiving is generated to the video-audio data stream of compression, and is transferred to video-audio data diverting flow device 40.Video-audio data diverting flow device 40 is by the video-audio data flow transmission of compression to USB interface 60, and Wi-Fi communication module 70 flows the video-audio data of the compression receiving from USB interface 60 with wireless way for transmitting to external equipment.
The audio-visual stream real-time Transmission of camera device also comprises external SD card memory 50, and SD card memory 50 connects video-audio data diverting flow device 40, and video-audio data diverting flow device 40 can also be by the video-audio data flow transmission of compression to SD card memory 50.
In other embodiments, the ARM controller 10 adopting can be ST controller, Samsung controller, ATMCL controller, En Zipu controller, peace despot's controller or Huawei's controller on the market, can also be MIPS Type C PU, 51 Type C PU, PIC Type C PU, AVR Type C PU, MSP430 Type C PU, Power PC or X86 Type C PU.The Wi-Fi communication module 70 adopting can be bluetooth communication module, 2G communication module, 3G communication module or 4G communication module.SD card memory 50 also can use camera body internal memory, external TF card memory, external USB flash disk or external memory stick.
More than statement only further illustrates technology contents of the present invention with embodiment, so that reader is easier to understand, but does not represent that embodiments of the present invention only limit to this, and any technology of doing according to the present invention is extended or recreation, is all subject to protection of the present invention.
Claims (9)
1. the audio-visual stream live transmission method of camera, is characterized in that: the audio-visual stream live transmission method of described camera comprises the following steps:
S1, controller sends to video module by control interface by control command;
S2, video module starts operation after receiving the control command of controller, the dynamic analog video of shooting with video-corder or audio signal is converted into the digital audio-video dynamic dataflow of normal format;
S3, sound processing device receives from starting operation after the control command of video module, and the video-audio data that the digital audio-video dynamic dataflow compression of the normal format of receiving is generated to compression flows and is transferred to video-audio data diverting flow device;
S4, controller sends shunting instruction to video-audio data diverting flow device;
S5, after the video-audio data stream of the compression that video-audio data diverting flow device reception sound processing device sends, the handover module of video-audio data diverting flow device according to shunting instruction by compression video-audio data flow transmission to USB interface, the wireless communication module being connected with USB interface receives the video-audio data stream of compression from USB interface, and the video-audio data stream of compression is transferred in external equipment with wireless transmission method.
2. the audio-visual stream live transmission method of camera as claimed in claim 1, is characterized in that: described step S5 comprises the following steps:
S51, the handover module of video-audio data diverting flow device judges whether shunting instruction requires the video-audio data stream of compression only to transfer to USB interface, if so, the video-audio data stream of compression is only transferred to USB interface; If not, the video-audio data stream of compression is transferred in USB interface and memory simultaneously.
3. the audio-visual stream live transmission method of camera as claimed in claim 2, it is characterized in that: in described step S3, the video-audio data that the digital audio-video dynamic dataflow compression of the normal format of receiving is generated the compression of two or more different-format by sound processing device flows and is transferred to video-audio data diverting flow device.
4. the audio-visual stream live transmission method of camera as claimed in claim 3, it is characterized in that: in described step S51, the handover module of video-audio data diverting flow device transmits after the video-audio data flow point of the compression of different forms being assigned to different transmission channels according to shunting instruction again.
5. the audio-visual stream real-time Transmission of a camera device, comprising:
Controller (10), for sending instruction to other modules;
Video module (20), for receiving and the control command of transmitting controller (10) input, is converted into the dynamic analog video of shooting with video-corder or audio signal the digital audio-video dynamic dataflow of normal format;
Sound processing device (30), for receiving the order from video module (20), the video-audio data stream that the digital audio-video dynamic dataflow compression of the normal format of receiving is generated to the compression of two or more different-format sends;
Video-audio data diverting flow device (40), the instruction of sending for receiving self-controller (10), the video-audio data stream of the compression of the different-format of two or more that receives that sound processing device (30) sends, and video-audio data stream that will the compression of different-format transmits after distributing different transmission channels again;
It is characterized in that: also comprise USB interface (60) and wireless communication module (70), described controller (10) connects respectively video module (20) and video-audio data diverting flow device (40), described video module (20) connects respectively controller (10) and sound processing device (30), described sound processing device (30) connects respectively video module (20) and video-audio data diverting flow device (40), described video-audio data diverting flow device (40) connects respectively controller (10), sound processing device (30) and USB interface (60), described USB interface (60) connects respectively video-audio data diverting flow device (40) and wireless communication module (70).
6. the audio-visual stream real-time Transmission of camera as claimed in claim 5 device, is characterized in that: also comprise memory (50), described memory (50) connects described video-audio data diverting flow device (40).
7. the audio-visual stream real-time Transmission of the camera as described in claim 5 or 6 device, is characterized in that: described controller (10) is ARM Type C PU, MIPS Type C PU, 51 Type C PU, PIC Type C PU, AVR Type C PU, MSP430 Type C PU, Power PC or X86 Type C PU.
8. the audio-visual stream real-time Transmission of the camera as described in claim 5 or 6 device, is characterized in that: described wireless communication module (70) is Wi-Fi communication module, bluetooth communication module, 2G communication module, 3G communication module or 4G communication module.
9. the audio-visual stream real-time Transmission of camera as claimed in claim 6 device, is characterized in that: described memory (50) is camera body internal memory, external SD card memory, external TF card memory, external USB flash disk or external memory stick.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310054613.9A CN103997597A (en) | 2013-02-20 | 2013-02-20 | Method and apparatus for real-time transmission of camera audio-video stream |
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| CN201310054613.9A CN103997597A (en) | 2013-02-20 | 2013-02-20 | Method and apparatus for real-time transmission of camera audio-video stream |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109862322A (en) * | 2019-02-19 | 2019-06-07 | 深圳市研诺达科技有限公司 | A kind of audio-visual acquisition equipment of 4G based on the transmission of UVC data |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040252197A1 (en) * | 2003-05-05 | 2004-12-16 | News Iq Inc. | Mobile device management system |
| CN1705346A (en) * | 2004-06-03 | 2005-12-07 | 乐金电子(中国)研究开发中心有限公司 | Camera mobile phone remote controlling system and method |
| CN101299808A (en) * | 2007-04-30 | 2008-11-05 | 北京希格玛和芯微电子技术有限公司 | Method and apparatus for real-time image data transmission |
| CN101719981A (en) * | 2009-12-01 | 2010-06-02 | 西安终南信息技术有限公司 | Underground total darkness environment high definition video collecting and processing system as well as collecting and processing method |
| CN201708889U (en) * | 2010-05-31 | 2011-01-12 | 广东迅通计算机有限公司 | Multi-path network video decoder |
| CN101951428A (en) * | 2007-10-19 | 2011-01-19 | 孟智平 | Exchanging storage method for terminal data and related device |
| CN202121684U (en) * | 2011-06-17 | 2012-01-18 | 德之傑科技（深圳）有限公司 | Camera with wireless transmission function |
-
2013
- 2013-02-20 CN CN201310054613.9A patent/CN103997597A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040252197A1 (en) * | 2003-05-05 | 2004-12-16 | News Iq Inc. | Mobile device management system |
| CN1705346A (en) * | 2004-06-03 | 2005-12-07 | 乐金电子(中国)研究开发中心有限公司 | Camera mobile phone remote controlling system and method |
| CN101299808A (en) * | 2007-04-30 | 2008-11-05 | 北京希格玛和芯微电子技术有限公司 | Method and apparatus for real-time image data transmission |
| CN101951428A (en) * | 2007-10-19 | 2011-01-19 | 孟智平 | Exchanging storage method for terminal data and related device |
| CN101719981A (en) * | 2009-12-01 | 2010-06-02 | 西安终南信息技术有限公司 | Underground total darkness environment high definition video collecting and processing system as well as collecting and processing method |
| CN201708889U (en) * | 2010-05-31 | 2011-01-12 | 广东迅通计算机有限公司 | Multi-path network video decoder |
| CN202121684U (en) * | 2011-06-17 | 2012-01-18 | 德之傑科技（深圳）有限公司 | Camera with wireless transmission function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109862322A (en) * | 2019-02-19 | 2019-06-07 | 深圳市研诺达科技有限公司 | A kind of audio-visual acquisition equipment of 4G based on the transmission of UVC data |
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