CN202940913U - Double-transmission mode video monitoring system - Google Patents
Double-transmission mode video monitoring system Download PDFInfo
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- CN202940913U CN202940913U CN 201220599268 CN201220599268U CN202940913U CN 202940913 U CN202940913 U CN 202940913U CN 201220599268 CN201220599268 CN 201220599268 CN 201220599268 U CN201220599268 U CN 201220599268U CN 202940913 U CN202940913 U CN 202940913U
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Abstract
The utility model relates to the field of security and protection technology and provides a double-transmission mode video monitoring device. The device comprises an analog camera, an A/D video input chip, a coding and decoding chip ASICVW2010, a master control core cell, a D/A video output chip, a first GPRS module, a second GPRS module and a monitoring and displaying terminal, wherein the analog camera, the A/D video input chip, the coding and decoding chip ASICVW2010, the D/A video output chip and the first GPRS module are successively connected, the second GPRS module is connected with the monitoring and displaying terminal, and the first GPRS module and the second GPRS module exchange data through a GPRS network; and the device further comprises a CAN bus controller SJA1000 and a CAN bus, wherein the CAN bus controller SJA1000 is connected with the master control core cell and the CAN bus, and the CAN bus is connected with the monitoring and displaying terminal.
Description
Technical field
The utility model relates to security and guard technology, and a kind of pair of transmission means video monitoring apparatus is provided.
Background technology
Raising along with scientific and technical development and progress and people's material and cultural life, the degree of safety of people's living environment has had new requirement, thereby all kinds of security devices arise at the historic moment, at present at home and abroad on market, the video acquisition device of most video monitoring safety-protection systems mainly contains two kinds: the first adopts special image decoding chip automatically to complete the collection of image, and the time that processor is taken is few.But shortcoming is its grey scale accuracy to be restricted in the special image acquisition chip, and the video signal video adaptability that generally can only gather standard is bad, generally adopts the CPLD(CPLD) to be controlled, integrated level is low, the circuit complexity, cost is high.The second, adopt screen special external high-speed A/D converter, and decoding completes by logical device, and the interface of processor requirement and outside AD converter is also stored data.Shortcoming is to carry out precision control to clock signal, and processing capability in real time is poor.The circuit complexity, cost is high.
The utility model content
The purpose of this utility model is for the deficiencies in the prior art, and a kind of pair of transmission means video monitoring apparatus that a kind of circuit is simple, with low cost, can carry out real-time processing is provided.
The utility model is for achieving the above object by the following technical solutions:
A kind of pair of transmission means video monitoring apparatus is characterized in that: comprise the simulation camera, A/D video conversion chip, codec chip ASICVW2010, master control core cell, D/A video pio chip, the one GPRS module, the 2nd GPRS module, the monitoring display terminal, described simulation camera, A/D video pio chip, codec chip ASICVW2010, D/A video pio chip, the one GPRS sequence of modules connects, and described the 2nd GPRS module connects the monitoring display terminal, and a described GPRS module and the 2nd GPRS module are carried out data interaction by GPRS network, and described master control core cell connects codec chip ASICVW2010, A/D video input chip, D/A video pio chip, for it provides control signal, described master control core cell also is connected with the jtag interface for communicating by letter with host computer, the SD card memory, the FLASH memory, the SDRAM memory, also comprise CAN bus control unit SJA1000, the CAN bus, and described CAN bus control unit SJA1000 connects master control core cell and CAN bus, and described CAN bus connects the monitoring display terminal.
Described master control core cell adopts chip S3C2410.Described A/D video input chip adopts SAA7113, and A/D video pio chip adopts SAA7121.
The utility model has been because adopted technique scheme, so circuit is simple, with low cost, can process in real time, and the analog signal of output can be directly for the simulation demonstration.
The accompanying drawing explanation
Fig. 1 is system block diagram of the present utility model.
Embodiment
The utility model provides a kind of pair of transmission means video monitoring apparatus, comprise: for gathering the simulation camera of video data, by camera collection to vision signal be converted to the A/D video input chip SAA7113 of digital video signal, the compression coding vision signal, vision signal is converted to the encoding and decoding ASICVW2010 of MPEG-4 form, to be converted to the D of analog video signal/A video pio chip SAA7121 through digital video signal, the S3C2410 master control core cell of the control that system data is flowed to and the control and management of peripheral module, and the jtag interface of the serial communication between PC, system power supply for the whole system power supply, the SD card storage of the video information arrived for storage of collected, as the storage of program and the SDRAM memory in operation and dynamic buffering space, mainly stored the FLASH memory of operating system nucleus and root file system, for carrying out a GPRS module and the 2nd GPRS module of Wireless Data Transmission, with the monitoring display terminal for showing, described A/D video input chip SAA7113, encoding and decoding ASICVW2010, A/D video pio chip SAA7121, jtag interface, system power supply, the storage of SD card, the SDRAM memory all is connected with S3C2410 master control core cell with the FLASH memory, described simulation camera sends the video data collected to, after A/D video input chip SAA7113 carries out after analog-to-digital conversion and decoding obtaining the unpressed ITU656 digital video signal that meets encoding and decoding ASICVW2010 video interface standard, give encoding and decoding ASICVW2010, ASICVW2010 compression coding vision signal, vision signal is converted to the MPEG-4 form, then on the one hand deposit the video data after compressed encoding in the SD card with the form of file under the control of S3C2410 master control core cell and realize local storage, on the other hand video data is outputed to D/A video pio chip SAA7121 and carry out digital-to-analogue conversion, obtain giving the monitoring display terminal for Imitation conveyance to the GPRS module, also comprise CAN bus control unit SJA1000, the CAN bus, described CAN bus control unit SJA1000 connects master control core cell and CAN bus, described CAN bus connects the monitoring display terminal.
Claims (3)
1.
a kind of pair of transmission means video monitoring apparatus is characterized in that: comprise the simulation camera, A/D video conversion chip, codec chip ASICVW2010, master control core cell, D/A video pio chip, the one GPRS module, the 2nd GPRS module, the monitoring display terminal, described simulation camera, A/D video pio chip, codec chip ASICVW2010, D/A video pio chip, the one GPRS sequence of modules connects, and described the 2nd GPRS module connects the monitoring display terminal, and a described GPRS module and the 2nd GPRS module are carried out data interaction by GPRS network, and described master control core cell connects codec chip ASICVW2010, A/D video input chip, D/A video pio chip, for it provides control signal, described master control core cell also is connected with the jtag interface for communicating by letter with host computer, the SD card memory, the FLASH memory, the SDRAM memory, also comprise CAN bus control unit SJA1000, the CAN bus, and described CAN bus control unit SJA1000 connects master control core cell and CAN bus, and described CAN bus connects the monitoring display terminal.
2.
A kind of pair of transmission means video monitoring apparatus according to claim 1 is characterized in that: described master control core cell adopts chip S3C2410.
3.
A kind of pair of transmission means video monitoring apparatus according to claim 1 is characterized in that: described A/D video input chip adopts SAA7113, and A/D video pio chip adopts SAA7121.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220599268 CN202940913U (en) | 2012-11-14 | 2012-11-14 | Double-transmission mode video monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220599268 CN202940913U (en) | 2012-11-14 | 2012-11-14 | Double-transmission mode video monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940913U true CN202940913U (en) | 2013-05-15 |
Family
ID=48325135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220599268 Expired - Fee Related CN202940913U (en) | 2012-11-14 | 2012-11-14 | Double-transmission mode video monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202940913U (en) |
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2012
- 2012-11-14 CN CN 201220599268 patent/CN202940913U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20131114 |