CN104349100A - DVR monitoring system supporting single-channel dual-stream video recording and method thereof - Google Patents
DVR monitoring system supporting single-channel dual-stream video recording and method thereof Download PDFInfo
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Abstract
The invention provides a DVR monitoring system supporting single-channel dual-stream video recording and a method thereof. A video and audio acquisition channel acquires video and audio data, and the video and audio acquisition channel comprises analog video cameras or IPCs; a DSP encoder encodes analog signal input of the video and audio data acquired by the same path of analog video cameras into mainstream data with higher resolution and sub-stream data with lower resolution, or repackages the mainstream and sub-stream data acquired by the same path of IPCs into the mainstream data with higher resolution and the sub-stream data with lower resolution; the mainstream data with higher resolution are cached in a mainstream video recording buffer area, and the sub-stream data with lower resolution are cached in a sub-stream video recording buffer area; and a mainstream and sub-stream video recording scheduling module schedules the mainstream data with higher resolution and the sub-stream data with lower resolution to be stored to video recording storage equipment. Hard disk data storage overhead can be reduced so that network bandwidth can be effectively reduced, and overhead of a client-terminal decoder and the equipment performance requirement can be reduced.
Description
Technical field
The present invention relates to and a kind ofly support the DVR supervisory control system that single passage dual code stream is recorded a video and method.
Background technology
DVR(DVR), comprise DVR, mixing DVR and network DVR.In the application scenario that existing high-definition network video is monitored, DVR can access the IPC(IP CAMERA of high definition pixel usually, web camera), general each passage only supports that a road is looked sound data flow and stored.The data volume stored due to high definition passage is comparatively large, and resolution is higher understands Shortcomings in following application:
1, under 3G network and the poor environment of network, be difficult to reach good playback effect;
2, when multichannel playback, because decoding performance is limited, be difficult to arrive the playback effect of the higher playback multiple of more multichannel;
3, handheld mobile device due to spread in performance uneven, high definition passage playback decoding effect is limited.
In addition, due to the exception of hard disk, the loss of Video data may be caused, in order to ensure the fail safe of Video data in prior art, redundancy backup can be adopted to record a video, traditional redundancy video recording main bit stream data is recorded two parts points to be clipped in common hard disc and redundant hard disk, and this will double to the expense that the data of hard disk store.
Summary of the invention
The object of the present invention is to provide and a kind ofly support the DVR supervisory control system that single passage dual code stream is recorded a video and method, hard disc data storage overhead can be reduced, effectively reduce the network bandwidth, reduce expense and the equipment performance requirement of client decoders.
For solving the problem, the invention provides a kind of DVR supervisory control system that single passage dual code stream is recorded a video of supporting, comprising:
Video and audio acquisition channel, for gathering video/audio, described video and audio acquisition channel comprises analog video camera or IPC;
Dsp code device, analog signal input coding for the video/audio by the analog video camera collection of same road becomes high-resolution main bit stream data and low resolution subcode stream data, or is turned by boss's bit stream data that same road IPC gathers and be packaged into high-resolution main bit stream data and low resolution subcode stream data;
Main bit stream record buffering district, for high-resolution main bit stream data described in buffer memory;
Subcode stream record buffering district, for low resolution subcode stream data described in buffer memory;
Boss's code stream video recording scheduler module, for the storage of execution cost high-resolution main bit stream data and low resolution subcode stream data;
Video recording memory device, for storing described high-resolution main bit stream data and low resolution subcode stream data according to the scheduling of described boss's code stream video recording scheduler module.
Further, in said system, described boss's code stream video recording scheduler module is also for the playback request according to remote terminal or the local playing module of DVR, obtain corresponding high-resolution main bit stream data and/or low resolution subcode stream data from described video recording memory device, and be sent to described remote terminal or the local playing module of DVR.
Further, in said system, when described video and audio acquisition channel is analog video camera, described dsp code device adopts h264 coded format.
According to another side of the present invention, a kind of DVR method for supervising that single passage dual code stream is recorded a video of supporting is provided, comprises:
Video and audio acquisition channel gathers video/audio, and described video and audio acquisition channel comprises analog video camera or IPC;
The analog signal input coding of the video/audio of same road analog video camera collection is become high-resolution main bit stream data and low resolution subcode stream data by dsp code device, or is turned by boss's bit stream data that same road IPC gathers and be packaged into high-resolution main bit stream data and low resolution subcode stream data;
High-resolution main bit stream data described in buffer memory are in a main bit stream record buffering district, and low resolution subcode stream data described in buffer memory are in a subcode stream record buffering district;
Boss's code stream video recording scheduler module scheduling described high-resolution main bit stream data of storage and low resolution subcode stream data are to memory device of recording a video.
Further, in the above-mentioned methods, the scheduling of boss's code stream video recording scheduler module store described high-resolution main bit stream data and low resolution subcode stream data to video recording memory device step after also comprise:
Described boss's code stream video recording scheduler module is according to the playback request of remote terminal or the local playing module of DVR, obtain corresponding high-resolution main bit stream data and/or low resolution subcode stream data from described video recording memory device, and be sent to described remote terminal or the local playing module of DVR.
Further, in the above-mentioned methods, when described video and audio acquisition channel is analog video camera, described dsp code device adopts h264 coded format.
Compared with prior art, the present invention gathers video/audio by video and audio acquisition channel, and described video and audio acquisition channel comprises analog video camera or IPC; The analog signal input coding of the video/audio of same road analog video camera collection is become high-resolution main bit stream data and low resolution subcode stream data by dsp code device, or is turned by boss's bit stream data that same road IPC gathers and be packaged into high-resolution main bit stream data and low resolution subcode stream data; High-resolution main bit stream data described in buffer memory are in a main bit stream record buffering district, and low resolution subcode stream data described in buffer memory are in a subcode stream record buffering district; Boss's code stream video recording scheduler module scheduling described high-resolution main bit stream data of storage and low resolution subcode stream data are to memory device of recording a video, the storage of parameter can be overlapped to the main and sub code stream two of each passage support height, realize main bit stream video recording, subcode stream is recorded a video, boss's code stream mixing video recording, meet the video recording configuration needs of more horn of plenty, user can configure different main and sub code stream video recording plans and meet following more demands:
1, in redundancy backup video recording, can chooser bit stream data redundancy RECORD mode, effectively reduce redundant data disk storage data volume;
2, only configuration subcode stream data hard disc data storage overhead can be reduced;
3, increase support subcode stream playback interface during long-range playback, subcode stream data readback can be called, effectively reduce the network bandwidth, reduce expense and the equipment performance requirement of client decoders, obtain good playback effect at 3G network and cell-phone customer terminal monitoring;
4, during the playback of Local or Remote multichannel, the high quick playback multiplying power of more synchronizing channel and Geng Gao can be reached with subcode stream video recording.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the storage Video data of the DVR supervisory control system of the single passage dual code stream video recording of support of one embodiment of the invention;
Fig. 2 is the schematic diagram of the reading Video data of the DVR supervisory control system of the single passage dual code stream video recording of support of one embodiment of the invention;
Fig. 3 is the flow chart of the DVR method for supervising of the single passage dual code stream video recording of support of one embodiment of the invention.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Embodiment one
As shown in Figure 1, the present invention also provides the another kind of DVR supervisory control system supporting the video recording of single passage dual code stream, comprises video and audio acquisition channel 1, dsp code device 2, main bit stream record buffering district 3, subcode stream record buffering district 4, boss's code stream video recording scheduler module 5 and video recording memory device 6.Concrete, the video/audio data flow video/audio of each video and audio acquisition channel 1 being changed into height two cover parameter of the DVR supervisory control system of the single passage dual code stream video recording of the present embodiment, respective video recording plan is all supported for different code streams, single channel dual code stream mixing video recording can be realized.
Video and audio acquisition channel 1, for gathering video/audio, described video and audio acquisition channel comprises analog video camera or IPC;
Preferably, when described video and audio acquisition channel 1 is analog video camera 11, dsp code device 2 is according to the coding parameter of boss's code stream of configuration, video adopts h264 coded format, analog signal rapid translating is become digital signal, filtration compression process is carried out to view data, generates the stored boss bit stream data of ps encapsulation to respective buffering area.If the high-definition network IPC of access, dsp code device 2 obtains main bit stream and the subcode stream video/audio of IPC according to the access protocol of IPC simultaneously, and bit stream data is copied to main bit stream record buffering district 3 and/or subcode stream record buffering district 4 through turning encapsulation process.
Dsp code device 2, analog signal input coding for the video/audio by the analog video camera collection of same road becomes high-resolution main bit stream data and low resolution subcode stream data, or is turned by boss's bit stream data that same road IPC gathers and be packaged into high-resolution main bit stream data and low resolution subcode stream data; Concrete, in redundancy backup RECORD mode, subcode stream can be selected to do redundancy video recording, and the ratio accounting for total amount of data due to subcode stream Data Data amount is very little, the effective expense reducing redundancy and record a video to hard-disc storage.Under subcode stream redundancy RECORD mode, subcode stream video recording plan copies main bit stream video recording plan, keeps recording a video synchronous with main bit stream.And subcode stream Video data is write in redundant data storage medium.In addition, the expense reducing the network bandwidth and client decoding with subcode stream playback can be selected.
Main bit stream record buffering district 3, for high-resolution main bit stream data described in buffer memory;
Subcode stream record buffering district 4, for low resolution subcode stream data described in buffer memory; Specifically, time system boot is initialized, fixing continuous print address at internal memory is that the video channel accessed distributes boss's bit stream buffer district by boss's code stream size ratio, and record buffering district memory address is not just discharging and adjust, to ensure stability once distribution.
Boss's code stream video recording scheduler module 5, for the storage of execution cost high-resolution main bit stream data and low resolution subcode stream data; Concrete, boss's code stream video recording scheduler module 5 is for realizing the different video recording planned dispatching of boss's code stream, recorded a video by mobile detection, input of reporting to the police, the manually video recording passage produced such as logical and open and close the video recording scheduler module 5 that message can pass to main bit stream and subcode stream simultaneously, then according to different video recording operation plans, boss's code stream Video data is distinguished and is stored into video recording memory device 6.
Preferably, as shown in Figure 2, described boss's code stream video recording scheduler module 6 is also for the playback request according to remote terminal 7 or the local playing module 8 of DVR, obtain corresponding high-resolution main bit stream data and/or low resolution subcode stream data from described video recording memory device, and be sent to described remote terminal 7 or the local playing module 8 of DVR.Concrete, under boss's code stream RECORD mode, newly-increased local and remote subcode stream playback interface, in network environment when poor and decoding device performance deficiency, subcode stream playback interface can be called, good playback effect can be reached in multichannel playback and long-range playback.
Video recording memory device 6, for storing described high-resolution main bit stream data and low resolution subcode stream data according to the scheduling of described boss's code stream video recording scheduler module.
The present embodiment can overlap the storage of parameter to the main and sub code stream two of each passage support height, realize main bit stream video recording, subcode stream is recorded a video, boss's code stream mixing video recording, meet the video recording configuration needs of more horn of plenty, user can configure different main and sub code stream video recording plans and meet following more demands:
1, in redundancy backup video recording, can chooser bit stream data redundancy RECORD mode, effectively reduce redundant data disk storage data volume;
2, only configuration subcode stream data hard disc data storage overhead can be reduced;
3, increase support subcode stream playback interface during long-range playback, subcode stream data readback can be called, effectively reduce the network bandwidth, reduce expense and the equipment performance requirement of client decoders, obtain good playback effect at 3G network and cell-phone customer terminal monitoring;
4, during the playback of Local or Remote multichannel, the high quick playback multiplying power of more synchronizing channel and Geng Gao can be reached with subcode stream video recording.
Embodiment two
The invention provides a kind of DVR method for supervising that single passage dual code stream is recorded a video of supporting, comprise step S1 ~ step S6.
Step S1, video and audio acquisition channel gathers video/audio, and described video and audio acquisition channel comprises analog video camera or IPC;
Step S2, the analog signal input coding of the video/audio of same road analog video camera collection is become high-resolution main bit stream data and low resolution subcode stream data by dsp code device, or is turned by boss's bit stream data that same road IPC gathers and be packaged into high-resolution main bit stream data and low resolution subcode stream data;
Preferably, when described video and audio acquisition channel is analog video camera, described dsp code device adopts h264 coded format.
Step S3, high-resolution main bit stream data described in buffer memory are in a main bit stream record buffering district, and low resolution subcode stream data described in buffer memory are in a subcode stream record buffering district;
Preferably, the memory address in described main bit stream record buffering district and subcode stream record buffering district does not discharge once distribution and adjusts.
Step S4, boss's code stream video recording scheduler module scheduling described high-resolution main bit stream data of storage and low resolution subcode stream data are to memory device of recording a video;
Step S5, described boss's code stream video recording scheduler module is according to the playback request of remote terminal or the local playing module of DVR, obtain corresponding high-resolution main bit stream data and/or low resolution subcode stream data from described video recording memory device, and be sent to described remote terminal or the local playing module of DVR.
Other detailed content of embodiment two specifically see the appropriate section of embodiment one, can not repeat them here.
In sum, the present invention gathers video/audio by video and audio acquisition channel, and described video and audio acquisition channel comprises analog video camera or IPC; The analog signal input coding of the video/audio of same road analog video camera collection is become high-resolution main bit stream data and low resolution subcode stream data by dsp code device, or is turned by boss's bit stream data that same road IPC gathers and be packaged into high-resolution main bit stream data and low resolution subcode stream data; High-resolution main bit stream data described in buffer memory are in a main bit stream record buffering district, and low resolution subcode stream data described in buffer memory are in a subcode stream record buffering district; Boss's code stream video recording scheduler module scheduling described high-resolution main bit stream data of storage and low resolution subcode stream data are to memory device of recording a video, the storage of parameter can be overlapped to the main and sub code stream two of each passage support height, realize main bit stream video recording, subcode stream is recorded a video, boss's code stream mixing video recording, meet the video recording configuration needs of more horn of plenty, user can configure different main and sub code stream video recording plans and meet following more demands:
1, in redundancy backup video recording, can chooser bit stream data redundancy RECORD mode, effectively reduce redundant data disk storage data volume;
2, only configuration subcode stream data hard disc data storage overhead can be reduced;
3, increase support subcode stream playback interface during long-range playback, subcode stream data readback can be called, effectively reduce the network bandwidth, reduce expense and the equipment performance requirement of client decoders, obtain good playback effect at 3G network and cell-phone customer terminal monitoring;
4, during the playback of Local or Remote multichannel, the high quick playback multiplying power of more synchronizing channel and Geng Gao can be reached with subcode stream video recording.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For system disclosed in embodiment, owing to corresponding to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
Professional can also recognize further, in conjunction with unit and the algorithm steps of each example of embodiment disclosed herein description, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeability of hardware and software is clearly described, generally describe composition and the step of each example in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
Obviously, those skilled in the art can carry out various change and modification to invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (6)
1. support a DVR supervisory control system for single passage dual code stream video recording, it is characterized in that, comprising:
Video and audio acquisition channel, for gathering video/audio, described video and audio acquisition channel comprises analog video camera or IPC;
Dsp code device, analog signal input coding for the video/audio by the analog video camera collection of same road becomes high-resolution main bit stream data and low resolution subcode stream data, or is turned by boss's bit stream data that same road IPC gathers and be packaged into high-resolution main bit stream data and low resolution subcode stream data;
Main bit stream record buffering district, for high-resolution main bit stream data described in buffer memory;
Subcode stream record buffering district, for low resolution subcode stream data described in buffer memory;
Boss's code stream video recording scheduler module, for the storage of execution cost high-resolution main bit stream data and low resolution subcode stream data;
Video recording memory device, for storing described high-resolution main bit stream data and low resolution subcode stream data according to the scheduling of described boss's code stream video recording scheduler module.
2. the DVR supervisory control system supporting the video recording of single passage dual code stream as claimed in claim 1, it is characterized in that, described boss's code stream video recording scheduler module is also for the playback request according to remote terminal or the local playing module of DVR, obtain corresponding high-resolution main bit stream data and/or low resolution subcode stream data from described video recording memory device, and be sent to described remote terminal or the local playing module of DVR.
3. the DVR supervisory control system supporting the video recording of single passage dual code stream as claimed in claim 1, is characterized in that, when described video and audio acquisition channel is analog video camera, described dsp code device adopts h264 coded format.
4. support a DVR method for supervising for single passage dual code stream video recording, it is characterized in that, comprising:
Video and audio acquisition channel gathers video/audio, and described video and audio acquisition channel comprises analog video camera or IPC;
The analog signal input coding of the video/audio of same road analog video camera collection is become high-resolution main bit stream data and low resolution subcode stream data by dsp code device, or is turned by boss's bit stream data that same road IPC gathers and be packaged into high-resolution main bit stream data and low resolution subcode stream data;
High-resolution main bit stream data described in buffer memory are in a main bit stream record buffering district, and low resolution subcode stream data described in buffer memory are in a subcode stream record buffering district;
Boss's code stream video recording scheduler module scheduling described high-resolution main bit stream data of storage and low resolution subcode stream data are to memory device of recording a video.
5. the DVR method for supervising supporting the video recording of single passage dual code stream as claimed in claim 4, it is characterized in that, the scheduling of boss's code stream video recording scheduler module store described high-resolution main bit stream data and low resolution subcode stream data to video recording memory device step after also comprise:
Described boss's code stream video recording scheduler module is according to the playback request of remote terminal or the local playing module of DVR, obtain corresponding high-resolution main bit stream data and/or low resolution subcode stream data from described video recording memory device, and be sent to described remote terminal or the local playing module of DVR.
6. the DVR method for supervising supporting the video recording of single passage dual code stream as claimed in claim 4, is characterized in that, when described video and audio acquisition channel is analog video camera, described dsp code device adopts h264 coded format.
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| CN106534857A (en) * | 2016-11-02 | 2017-03-22 | 深圳市维海德技术股份有限公司 | Code stream transmission method and camera based on USB |
| CN107682672A (en) * | 2017-09-30 | 2018-02-09 | 深圳市普天宜通技术股份有限公司 | A kind of two-way video stream implementation method, storage medium and multimedia terminal |
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| CN105763848A (en) * | 2016-03-03 | 2016-07-13 | 浙江宇视科技有限公司 | Fish-eye camera rear end access method and system |
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| CN107736019A (en) * | 2017-08-31 | 2018-02-23 | 深圳市锐明技术股份有限公司 | Vehicle-mounted security-monitoring monitoring method, system and terminal device |
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| CN107682672A (en) * | 2017-09-30 | 2018-02-09 | 深圳市普天宜通技术股份有限公司 | A kind of two-way video stream implementation method, storage medium and multimedia terminal |
| CN107749857A (en) * | 2017-11-01 | 2018-03-02 | 深圳市普天宜通技术股份有限公司 | Method, storage medium and client a kind of while that check multi-channel video |
| CN114245219A (en) * | 2019-02-27 | 2022-03-25 | 深圳市大疆创新科技有限公司 | Video playback method of shooting device and shooting device |
| CN110572603A (en) * | 2019-09-17 | 2019-12-13 | 浙江大华技术股份有限公司 | Hard disk video recorder |
| CN111246115A (en) * | 2020-02-20 | 2020-06-05 | 深圳市昊一源科技有限公司 | Wireless transmission system and transmission control device |
| CN111586407A (en) * | 2020-06-01 | 2020-08-25 | 上海移柯通信技术股份有限公司 | Audio and video dual-code stream processing method based on android system |
| CN114339344A (en) * | 2020-10-10 | 2022-04-12 | 海信视像科技股份有限公司 | Intelligent device and video recording method |
| CN114339344B (en) * | 2020-10-10 | 2024-03-05 | 海信视像科技股份有限公司 | Intelligent device and video recording method |
| CN113068024A (en) * | 2021-03-19 | 2021-07-02 | 瑞芯微电子股份有限公司 | Real-time snap analysis method and storage medium |
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Application publication date: 20150211 |