CN202004911U - Audio and video signal processing device - Google Patents
Audio and video signal processing device Download PDFInfo
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- CN202004911U CN202004911U CN 201020608879 CN201020608879U CN202004911U CN 202004911 U CN202004911 U CN 202004911U CN 201020608879 CN201020608879 CN 201020608879 CN 201020608879 U CN201020608879 U CN 201020608879U CN 202004911 U CN202004911 U CN 202004911U
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Abstract
The utility model relates to an audio and video signal processing device, which comprises a signal division processing module, a signal compression module and a network transmission module. The signal compression module is respectively connected with the signal division processing module and the network transmission module. The signal division processing module is used for dividing and integrating at least one audio signal and/or at least one video signal and sending the audio signal and/or the video signal to the signal compression module. Signal compression module isused for compressing the integrated audio signal and/or the integrated video signal, outputting the integrated audio signal and/or the integrated video signal through the network transmission module and receiving a control signal which is sent by the network transmission module and is used for regulating a signal compression parameter of the signal compression module. Therefore, multichannel audio signals and/or multichannel video signals can be simultaneously transmitted under the condition of limited bandwidth, the requirement on the network transmission bandwidth is reduced, and an alarm function is also realized, so that the defects of high system cost, difficulty in maintaining a plurality of nodes and the like, which are generated when the audio and video signal processing device is externally connected with alarm equipment, are avoided.
Description
Technical field
The utility model relates to safety-security area, relates in particular to a kind of AV signal processing unit of realizing RMON.
Background technology
Progress at full speed along with social economy and science and technology, the particularly fast development of network communications technology, image Compression technology and transmission technology, up-to-date computer communication technology and image processing techniques have also been added in the safety technological guard field, the monitoring remote video and the internet alarm system that utilize the computer network transmission to realize are for the safety precaution of enterprise, efficient management provide strong technical guarantee.Simultaneously, the development of broadband technology and digital video technology also provides more perfectly solution for remote monitoring.
At present, utilize network to realize that in the scheme of remote monitoring all be by signal handling equipment analog video signal to be converted into digital video signal, utilize the digital video signal after Network Transmission is changed again.Present stage, the bottleneck of existing remote monitoring project maximum is that the Network Transmission bandwidth is low excessively, for example, the vision signal of transmitting 1 road CIF form will take the bandwidth about 500K, if transmitting multi-path video just needs corresponding bandwidth, the result who brings thus is exactly that video signal transmission is higher to network bandwidth requirements, can not under limited bandwidth, transmit multiway images simultaneously, this just makes the on-the-spot actual conditions in the monitored district of understanding that Surveillance center can't be promptly and accurately, alert event is confirmed difficulty, and system effectiveness is very low.In addition, the signal handling equipment function of present stage is comparatively single, can only transmission of video and audio signal, if will transmit alarm signal, then need external warning device, and this has just caused system cost higher, and how not node defective such as easy care.
The utility model content
The utility model improves at defectives such as above-mentioned Network Transmission borrowing needs height, provides a kind of lower to the Network Transmission bandwidth requirement, can transmit the AV signal processing unit of multiple signals under the finite bandwidth condition.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: the AV signal processing unit comprises signal segmentation processing module, Signal Compression module, network transmission module, described Signal Compression module links to each other with described signal segmentation processing module, described network transmission module respectively
Described signal segmentation processing module is used to cut apart and integrates at least one road audio signal and/or at least one road vision signal, is sent to described Signal Compression module;
Described Signal Compression module links to each other with described network transmission module, the control signal of sending according to the outside, adjust the Signal Compression parameter of this Signal Compression module, and audio signal after the compression integration and/or the vision signal after the integration, again via described network transmission module output.
Further, described signal segmentation processing module comprises signal input unit, signal segmentation treatment circuit, first control circuit, signal output apparatus, described signal segmentation treatment circuit links to each other with described signal input unit, described first control circuit, described signal output apparatus respectively
Described signal input unit comprises at least one audio signal input circuit and/or at least one video signal input circuit;
Described first control circuit also links to each other with described Signal Compression module, be used to receive the drive signal that described Signal Compression module sends, and control described signal segmentation treatment circuit at least one road audio signal and/or at least one road vision signal that receive are cut apart integration processing.
Further, described signal segmentation processing module comprises that also the AV signal ring goes out circuit, described AV signal ring goes out circuit and links to each other with described signal input unit, receives described at least one road audio signal and/or at least one road vision signal and exports to the outside.
Further, described Signal Compression module comprises encode/decode audio signal circuit, video codec circuit, second control circuit, communication interface, and described second control circuit links to each other with described encode/decode audio signal circuit, described video codec circuit, described communication interface respectively;
Described encode/decode audio signal circuit is used for the audio signal after the integration that the described signal segmentation processing module of digitlization sends, and is sent to described second control circuit, also handles and export the digital audio and video signals that described second control circuit sends;
Described video codec circuit is used for the vision signal after the integration that the described signal segmentation processing module of digitlization sends, and is sent to described second control circuit, also handles and export the digital video signal that described second control circuit sends;
Described second control circuit is used for compressing described digitized audio signal and/or described digitized vision signal according to the control signal that described network transmission module sends, and via described network transmission module output;
Described communication interface links to each other with described second control circuit, sends drive signal to described signal segmentation processing module, controls the integration processing of cutting apart that described signal segmentation processing module is finished signal.
Further, described Signal Compression module also comprises warning circuit, and described warning circuit links to each other with described second control circuit,
Described warning circuit is used to receive the alarm signal of outside input, and is sent to described second control circuit.
Further, described Signal Compression module also comprises memory circuit, and described memory circuit links to each other with described second control circuit,
Described memory circuit is used to preserve the audio signal of described second control circuit compression and/or the vision signal of compression.
Further, described memory circuit is one or more among SDRAM, the FLASH.
Further, described Signal Compression parameter comprises in the projects such as frame per second, code efficiency, picture quality one or multinomial.
The beneficial effects of the utility model are: signal processing apparatus of the present utility model can transmit multipath audio signal and/or multi-channel video signal simultaneously under the finite bandwidth condition, reduced the requirement to the Network Transmission bandwidth.In addition, signal processing apparatus of the present utility model also can be realized warning function, and this has just been avoided not defective such as easy care of system cost height that external warning device causes, multinode.
Description of drawings
Fig. 1 is the formation schematic diagram of the utility model AV signal processing unit;
Fig. 2 is the formation schematic diagram of first kind of implementation of signal segmentation processing module in the utility model;
Fig. 3 is the formation schematic diagram of second kind of implementation of signal segmentation processing module in the utility model;
Fig. 4 is the formation schematic diagram of the first kind of implementation of Signal Compression module in the utility model;
Fig. 5 is the formation schematic diagram of the second kind of implementation of Signal Compression module in the utility model;
Fig. 6 is the formation schematic diagram of the third implementation of Signal Compression module in the utility model.
Embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used to explain the utility model, is not to be used to limit scope of the present utility model.
As shown in Figure 1, the AV signal processing unit comprises signal segmentation processing module 100, Signal Compression module 200, network transmission module 300, and Signal Compression module 200 links to each other with signal segmentation processing module 100, network transmission module 300 respectively.Wherein, signal segmentation processing module 100 is used to cut apart and integrates at least one road audio signal and/or at least one road vision signal, is sent to Signal Compression module 200; Signal Compression module 200 links to each other with network transmission module 300, the control signal of sending according to the outside, adjust the Signal Compression parameter of Signal Compression module 200, and audio signal after the compression integration and/or the vision signal after the integration, again via network transmission module 300 outputs.One or the multinomial compressed signal of adjusting 200 outputs of Signal Compression module in the Signal Compression parameters such as computer installation frame per second that for example, can be by Surveillance center, code efficiency, picture quality.
As shown in Figure 2, signal segmentation processing module 100 comprises signal input unit 101, signal segmentation treatment circuit 102, first control circuit 103, signal output apparatus 104, and signal segmentation treatment circuit 102 links to each other with signal input unit 101, first control circuit 103, signal output apparatus 104 respectively.Wherein, signal input unit 101 comprises at least one audio signal input circuit 1011 and/or at least one video signal input circuit 1012; First control circuit 103 also links to each other with Signal Compression module 200, be used for the drive signal that received signal compression module 200 sends, and at least one road audio signal and/or at least one road vision signal that 102 pairs in control signal dividing processing circuit receives are cut apart integration processing.
As shown in Figure 3, signal segmentation processing module 100 comprises that also the AV signal ring goes out circuit 105, the AV signal ring goes out circuit 105 and links to each other with signal input unit 101, receives at least one road audio signal and/or at least one road vision signal and exports to the outside.If to audio frequency, vision signal when whether input exists fault to carry out scene detection, can go out circuit 105 by the AV signal ring and input signal is sent to carries out input on the external display device in monitored district.
As shown in Figure 4, Signal Compression module 200 comprises encode/decode audio signal circuit 201, video codec circuit 202, second control circuit 203, communication interface 204, and second control circuit 203 links to each other with encode/decode audio signal circuit 201, video codec circuit 202, communication interface 204 respectively.Wherein, encode/decode audio signal circuit 201 is used for the audio signal after the integration that digitized signal dividing processing module 100 sends, and is sent to second control circuit 203, also handles and export the digital audio and video signals that second control circuit 203 sends; Video codec circuit 202 is used for the vision signal after the integration that digitized signal dividing processing module 100 sends, and is sent to second control circuit 203, also handles and export the digital video signal that second control circuit 203 sends; Second control circuit 203 is used for the audio signal and/or the digitized vision signal of the control signal compressed digitalization of sending according to network transmission module 300, and via network transmission module 300 outputs; Communication interface 204 links to each other with second control circuit 203, sends drive signal to signal segmentation processing module 100, and control signal dividing processing module 100 is finished the integration processing of cutting apart of signal.
As shown in Figure 5, Signal Compression module 200 also comprises warning circuit 205, and warning circuit 205 links to each other with second control circuit 203.Wherein, warning circuit 205 is used to receive the alarm signal of outside input, and is sent to second control circuit 203.
As shown in Figure 6, Signal Compression module 200 also comprises memory circuit 206, and memory circuit 206 links to each other with second control circuit 203.Wherein, memory circuit 206 is used to preserve the audio signal of second control circuit 203 compressions and/or the vision signal of compression.
Further, memory circuit 206 can be one or more among SDRAM, the FLASH.
The technical solutions of the utility model specific implementation is as follows:
At first, signal segmentation processing module 100 receives multipath audio signal, the vision signal of outside input, and transfer to signal segmentation treatment circuit 102 and carry out the signal segmentation integration processing, as a kind of implementation of the present utility model, signal segmentation treatment circuit 102 can adopt the too 2835 chips realization of Phyllis Covell company of the U.S..Like this, behind signal segmentation treatment circuit 102, multipath audio signal can be integrated into one tunnel audio signal, multi-channel video signal is integrated into one tunnel vision signal, be sent to Signal Compression module 200 via signal output apparatus 104 again.
Secondly, the audio signal that the encode/decode audio signal circuit 201 of Signal Compression module 200 inside receives after integrating, and will output to second control circuit 203 behind this audio signal digitizing; Simultaneously, the vision signal that the coding and decoding video circuit 202 of Signal Compression module 200 inside receives after integrating outputs to second control circuit 203 after being converted to the yuv data form behind this video signal digitization again.
In addition, because this signal processing apparatus has also been realized warning function by modes such as mobile detection and external trigger, so when being in an emergency, personnel in the monitored district can report to the police to Surveillance center by this signal processing apparatus, alarm signal can with audio signal, vision signal synchronous transmission to Surveillance center.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (7)
1. an AV signal processing unit is characterized in that, comprises signal segmentation processing module, Signal Compression module, network transmission module, and described Signal Compression module links to each other with described signal segmentation processing module, described network transmission module respectively,
Described signal segmentation processing module is used to cut apart and integrates at least one road audio signal and/or at least one road vision signal, is sent to described Signal Compression module;
Described Signal Compression module is used to receive the external control signal that sends through described network transmission module, adjusts the Signal Compression parameter of this Signal Compression module;
Described Signal Compression module also be used to compress the audio signal after the integration of described signal segmentation processing module output and/or integrate after vision signal;
Described network transmission module also is used to receive the compressed signal of described Signal Compression module output, and exports the Surveillance center of described AV signal processing unit outside to.
2. according to the described AV signal processing unit of claim 1, it is characterized in that, described signal segmentation processing module comprises signal input unit, signal segmentation treatment circuit, first control circuit, signal output apparatus, described signal segmentation treatment circuit links to each other with described signal input unit, described first control circuit, described signal output apparatus respectively
Described signal input unit comprises at least one audio signal input circuit and/or at least one video signal input circuit;
Described first control circuit also links to each other with described Signal Compression module, be used to receive the drive signal that described Signal Compression module sends, and control described signal segmentation treatment circuit at least one road audio signal and/or at least one road vision signal that receive are cut apart integration processing.
3. according to the described AV signal processing unit of claim 2, it is characterized in that described signal segmentation processing module comprises that also the AV signal ring goes out circuit,
Described AV signal ring goes out circuit and links to each other with described signal input unit, receives described at least one road audio signal and/or at least one road vision signal and exports to the outside.
4. according to claim 1,2 or 3 described AV signal processing unit, it is characterized in that, described Signal Compression module comprises encode/decode audio signal circuit, video codec circuit, second control circuit, communication interface, and described second control circuit links to each other with described encode/decode audio signal circuit, described video codec circuit, described communication interface respectively;
Described encode/decode audio signal circuit is used for the audio signal after the integration that the described signal segmentation processing module of digitlization sends, and is sent to described second control circuit, also handles and export the digital audio and video signals that described second control circuit sends;
Described video codec circuit is used for the vision signal after the integration that the described signal segmentation processing module of digitlization sends, and is sent to described second control circuit, also handles and export the digital video signal that described second control circuit sends;
Described second control circuit is used for compressing described digitized audio signal and/or described digitized vision signal according to the control signal that described network transmission module sends, and via described network transmission module output;
Described communication interface links to each other with described second control circuit, sends drive signal to described signal segmentation processing module, controls the integration processing of cutting apart that described signal segmentation processing module is finished signal.
5. according to the described AV signal processing unit of claim 4, it is characterized in that described Signal Compression module also comprises warning circuit, described warning circuit links to each other with described second control circuit,
Described warning circuit is used to receive the alarm signal of outside input, and is sent to described second control circuit.
6. according to the described AV signal processing unit of claim 4, it is characterized in that described Signal Compression module also comprises memory circuit, described memory circuit links to each other with described second control circuit,
Described memory circuit is used to preserve the audio signal of described second control circuit compression and/or the vision signal of compression.
7. according to the described AV signal processing unit of claim 6, it is characterized in that described memory circuit is one or more among SDRAM, the FLASH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020608879 CN202004911U (en) | 2010-11-16 | 2010-11-16 | Audio and video signal processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020608879 CN202004911U (en) | 2010-11-16 | 2010-11-16 | Audio and video signal processing device |
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| CN202004911U true CN202004911U (en) | 2011-10-05 |
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| CN 201020608879 Expired - Lifetime CN202004911U (en) | 2010-11-16 | 2010-11-16 | Audio and video signal processing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020118508A1 (en) * | 2018-12-11 | 2020-06-18 | 海能达通信股份有限公司 | Video transmission method, device and system, and server |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020118508A1 (en) * | 2018-12-11 | 2020-06-18 | 海能达通信股份有限公司 | Video transmission method, device and system, and server |
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Granted publication date: 20111005 |