CN108093202A - Video monitoring system based on DSP - Google Patents
Video monitoring system based on DSP Download PDFInfo
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- CN108093202A CN108093202A CN201611029413.8A CN201611029413A CN108093202A CN 108093202 A CN108093202 A CN 108093202A CN 201611029413 A CN201611029413 A CN 201611029413A CN 108093202 A CN108093202 A CN 108093202A
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- video
- dsp
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- monitoring system
- monitoring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Alarm Systems (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
The present invention relates to a kind of video monitoring systems based on DSP, it is characterised in that：It is made of front-end video collection module, video processing module, communication network module, monitoring center；The video processing module obtains composite analog video by front-end video collection module, and monitoring center is transmitted to by communication network module；The front-end video collection module includes optical system, ccd image sensor, CDS correlating double sampling circuits；The video processing module includes video data decoder, dsp code compressor reducer, main control unit；The communication network module is Ethernet or wireless network；The monitoring center includes communication serial port module, communication server, monitoring host computer, alarm, display.The present invention uses the DSP video monitoring systems based on Davinci technology, the processing core with ARM and DSP dual-core architectures, highly integrated SoC systems on chip, perfect technical support, and efficient processing capacity provides perfect data for video development personnel.
Description
Technical field
Patent of the present invention belongs to field of video monitoring, especially a kind of video monitoring system based on DSP.
Background technology
The development of video monitoring system substantially experienced three phases.Before the early 1990s, mainly set with simulation
Closed-circuit TV monitoring system based on standby is known as first generation simulated monitoring system.Middle nineteen nineties, with computer disposal energy
The raising of power and the development of video technique, people carry out acquisition and the place of video using the high-speed data processing capacity of computer
Reason realizes the multi-channel image processor of image using the high-resolution of display, this to be based on PC so as to substantially increase picture quality
The multimedia master station system of machine is known as second generation digitlization local video monitoring system.Late nineteen nineties, with network bandwidth,
The quick raising of computer process ability and memory capacity and the appearance of various usable video treatment technologies, video monitoring step
Enter the cybertimes of total digitalization, be known as third generation Active Eyes.Third generation video monitoring system using network as
It relies on, using the compression of digital video, transmission, storage and broadcasting as core, using the graphical analysis of Intelligent practical as characteristic, triggers
The technological revolution of Video Surveillance Industry receives academia, industrial circle and the great attention using department.
In recent years, with computer, network and image procossing, the rapid development of transmission technology, Video Supervision Technique
It is developed rapidly.It since video control system application field is extensive, and quickly grows, at present at home and abroad in the market, pushes away
Numerically controlled analog video monitoring and two class product of digital video monitoring are gone out.The former technology develops highly developed, property
It can stablize, and be used widely in practical engineering application, particularly the application in large and medium-sized video monitoring engineering is particularly
Extensively；The latter is the novel video monitoring system with computer technology and image/video boil down to core to emerge recently, this is
System solves simulation system part drawback and emerges rapidly, and digital video technology will undoubtedly remold the looks of entire electronics industry,
Certainly, digital video technology also makes our video tastes, transmission and interactive mode that deep variation, mistake occur
It goes, engineers select very limited when implementing digital video, and hardwired and the scheme based on ASIC always limit device
The purposes and function of part, and also limit their adaptivity, in face of multimedia standardization with rapid changepl. never-ending changes and improvements and application, they
Effectiveness is still very limited, and lack with enough performances, cost is sufficiently low, the sufficiently high digital video exploitation of flexibility is flat
Platform, therefore still need to further improve and develop.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, using the dsp processor chip based on Davinci technology,
Processing core with ARM and DSP dual-core architectures, highly integrated SoC systems on chip, perfect technical support are efficient to locate
Reason ability provides perfect data for video development personnel.
The present invention solves its technical problem and following technical scheme is taken to realize：
It is made of front-end video collection module, video processing module, communication network module, monitoring center；The video processing
Module obtains composite analog video by front-end video collection module, and monitoring center is transmitted to by communication network module；It is described
Front-end video collection module include optical system, ccd image sensor, CDS correlating double sampling circuits；The video processing
Module includes video data decoder, dsp code compressor reducer, main control unit；The communication network module for Ethernet or
Wireless network；The monitoring center includes communication serial port module, communication server, monitoring host computer, alarm, display.
Moreover, the optical system is connected with ccd image sensor；The ccd image sensor is related to CDS
Double sampling circuit is connected；The communication serial port module is connected with communication server；The communication server and monitoring
Host is connected；The monitoring host computer is connected respectively with alarm, display.
Moreover, the video processing module is also connected with power module, it is responsible for video data decoder, dsp code pressure
Contracting device, main control unit power supply.
Moreover, the ccd image sensor use ICX229AK model chips, inside be equipped with automatic white balance circuit,
Micro-control circuit module；It samples using the method for capacitance integral, store the charge information generated, capacitance carries out in sampling process
It charges, in order to carry out sample charge next time, capacitance needs to reset, and generates reset noise.
Moreover, the CDS correlating double sampling circuits use CXA2096N model chips, it is defeated to complete ccd image sensor
Go out the automatic gain amplification of signal and correlated double sampling function.
Moreover, the dsp code compressor reducer uses the dsp processor chip based on Davinci technology.
Moreover, the dsp processor chip based on Davinci technology uses TMS320DM6446 as the main place of system
Manage device.
Moreover, being connected with eeprom memory on the dsp code compressor reducer, it is responsible for the storage of DSP configuration parameters.
Advantage of the present invention and good effect are：
1st, the present invention uses the DSP video monitoring systems based on Davinci technology, including two based on digital signal processor
System on chip SoC and Video Codec, have an abundant expansion interface, efficient processing capacity, perfect technical support,
Perfect data is provided for video development personnel；Software has the flexibility of programming, takes into account the programming advantage of ASIC and FPGA；Depending on
Frequency codec can interactive operation, facilitate optimization, continue to use the function of DSP and integrated accelerator；Support open source operating system Linux
With Windows CE real time operating systems, increase product systems selectivity.
Description of the drawings
Fig. 1 is the video monitoring system structure chart based on DSP.
Specific embodiment
The specific embodiment of the invention is further described with reference to attached drawing：
As shown in Figure 1, a kind of video monitoring system based on DSP of the present invention, by front-end video collection module, video
Manage module, communication network module, monitoring center composition；The video processing module is answered by front-end video collection module
Analog video is closed, monitoring center is transmitted to by communication network module；The front-end video collection module include optical system,
Ccd image sensor, CDS correlating double sampling circuits；The video processing module includes video data decoder, dsp code
Compressor reducer, main control unit；The communication network module is Ethernet or wireless network；The monitoring center includes communication
Serial port module, communication server, monitoring host computer, alarm, display.
Object is imaged by optical system on ccd image sensor, and ccd image sensor is in dsp code compressor reducer
Driving is lower to realize the storage and transfer of light-induced charge, and then exports initial stage image information, and ccd image sensor uses capacitance integral
Method is sampled, and capacitance charges during sampling, and in order to carry out sample charge next time, capacitance needs multiple
Position so as to generate reset noise, and in ccd image sensor exports signal process, can generate dark current noise and white noise
Sound, subject image need to carry out noise reduction process through CDS correlated double samplings technology, before entering after inhibition low-frequency noise and broadband white noise
Phase handle DSP, dsp code compressor reducer by automatic white balance, backlight compensation, clamping, full color image reconstruct, drive horse correct
Etc. processing means initial stage image information is handled, final output composite analog video signal；Video processing module is answered
It after closing analog video, is handled through video data decoder and changes into digital video signal, video data passes through dsp code compressor reducer
From newly encoded, compression and conversion, using the DSP video monitoring systems based on Davinci technology, digital signal is based on including two
The system on chip SoC and Video Codec of processor, have abundant expansion interface, and efficient processing capacity is perfect
Technical support provides perfect data for video development personnel；Software has the flexibility of programming, takes into account the volume of ASIC and FPGA
Cheng Youdian；Video Codec can interactive operation, facilitate optimization, continue to use the function of DSP and integrated accelerator；Support is increased income operation
System Linux and Windows CE real time operating systems increase product systems selectivity；Finally by Ethernet or wireless network
It is transmitted in monitoring center.
Key technology in video monitoring mainly has：
Fast and accurately motion detection has detected whether moving object from the sequence image that video camera is captured.
Moving target positioning, identification and track algorithm with real-time, robustness.
Vision monitoring technology based on mobile camera, i.e., the fixed Still Camera of existing parameter is improved to parameter can
The dynamic camera of automatic adjustment.
Multiple-camera cooperation monitoring, single camera limited view will monitor that a wide range of dynamic scene needs multiple camera shootings
Machine, and occlusion issue is advantageously accounted for, calibration and the data fusion of multiple-camera are two key issues.
Abnormal phenomenon detection, alarm and goal behavior predict that video monitoring system alarms to anomalous event, and according to
Current goal state in which predicts the event that will occur.
It is emphasized that embodiment of the present invention is illustrative rather than limited, therefore the present invention is simultaneously
The embodiment described in specific embodiment is not limited to, it is every to be drawn by those skilled in the art's technique according to the invention scheme
Other embodiment, also belong to the scope of protection of the invention.
Claims (8)
1. a kind of video monitoring system based on DSP, it is characterised in that：By front-end video collection module, video processing module, lead to
Interrogate network module, monitoring center composition；The video processing module obtains composite analogy by front-end video collection module and regards
Frequently, it is transmitted to monitoring center by communication network module；The front-end video collection module includes optical system, ccd image
Sensor, CDS correlating double sampling circuits；The video processing module include video data decoder, dsp code compressor reducer,
Main control unit；The communication network module is Ethernet or wireless network；The monitoring center includes communication serial ports mould
Block, communication server, monitoring host computer, alarm, display.
2. the video monitoring system according to claim 1 based on DSP, it is characterised in that：The optical system and CCD
Imaging sensor is connected；The ccd image sensor is connected with CDS correlating double sampling circuits；The communication serial ports
Module is connected with communication server；The communication server is connected with monitoring host computer；The monitoring host computer respectively with
Alarm, display are connected.
3. the video monitoring system according to claim 1 based on DSP, it is characterised in that：The video processing module
Power module is also connected with, is responsible for video data decoder, dsp code compressor reducer, main control unit power supply.
4. the video monitoring system according to claim 1 based on DSP, it is characterised in that：The ccd image sensor
Using ICX229AK model chips, inside is equipped with automatic white balance circuit, micro-control circuit module；Using the method for capacitance integral come
The charge information that sampling, storage generate, capacitance charges in sampling process, and the charge in order to carry out next time is adopted
Sample, capacitance need to reset, and generate reset noise.
5. the video monitoring system according to claim 1 based on DSP, it is characterised in that：The CDS correlated double samplings
Circuit uses CXA2096N model chips, completes automatic gain amplification and the correlated double sampling of ccd image sensor output signal
Function.
6. the video monitoring system according to claim 1 based on DSP, it is characterised in that：The dsp code compressor reducer
Using the dsp processor chip based on Davinci technology.
7. the video monitoring system according to claim 6 based on DSP, it is characterised in that：It is described based on Leonardo da Vinci's skill
The dsp processor chip of art is using TMS320DM6446 as system primary processor.
8. the video monitoring system according to claim 1 based on DSP, it is characterised in that：The dsp code compressor reducer
On be connected with eeprom memory, be responsible for DSP configuration parameter storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611029413.8A CN108093202A (en) | 2016-11-22 | 2016-11-22 | Video monitoring system based on DSP |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611029413.8A CN108093202A (en) | 2016-11-22 | 2016-11-22 | Video monitoring system based on DSP |
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| CN108093202A true CN108093202A (en) | 2018-05-29 |
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| CN201611029413.8A Pending CN108093202A (en) | 2016-11-22 | 2016-11-22 | Video monitoring system based on DSP |
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Citations (6)
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| CN101742109A (en) * | 2010-01-18 | 2010-06-16 | 张力 | Multi-mode camera image processing circuit and image processing method by using the same |
| CN101938638A (en) * | 2010-09-14 | 2011-01-05 | 南京航空航天大学 | Network video monitoring system based on resolution ratio grading transmission |
| CN201910859U (en) * | 2010-11-04 | 2011-07-27 | 日照市三猫电子科技有限责任公司 | Novel monitoring camera with warning function |
| CN102638649A (en) * | 2012-03-06 | 2012-08-15 | 浙江大学 | USB3.0 high-speed high-definition industrial camera |
| JP2015049294A (en) * | 2013-08-30 | 2015-03-16 | リコーイメージング株式会社 | Imaging apparatus |
| CN104796664A (en) * | 2015-03-26 | 2015-07-22 | 成都市斯达鑫辉视讯科技有限公司 | Video monitoring device |
-
2016
- 2016-11-22 CN CN201611029413.8A patent/CN108093202A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101742109A (en) * | 2010-01-18 | 2010-06-16 | 张力 | Multi-mode camera image processing circuit and image processing method by using the same |
| CN101938638A (en) * | 2010-09-14 | 2011-01-05 | 南京航空航天大学 | Network video monitoring system based on resolution ratio grading transmission |
| CN201910859U (en) * | 2010-11-04 | 2011-07-27 | 日照市三猫电子科技有限责任公司 | Novel monitoring camera with warning function |
| CN102638649A (en) * | 2012-03-06 | 2012-08-15 | 浙江大学 | USB3.0 high-speed high-definition industrial camera |
| JP2015049294A (en) * | 2013-08-30 | 2015-03-16 | リコーイメージング株式会社 | Imaging apparatus |
| CN104796664A (en) * | 2015-03-26 | 2015-07-22 | 成都市斯达鑫辉视讯科技有限公司 | Video monitoring device |
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Application publication date: 20180529 |