CN201663664U - Dual-CPU network video server - Google Patents
Dual-CPU network video server Download PDFInfo
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- CN201663664U CN201663664U CN 201020133747 CN201020133747U CN201663664U CN 201663664 U CN201663664 U CN 201663664U CN 201020133747 CN201020133747 CN 201020133747 CN 201020133747 U CN201020133747 U CN 201020133747U CN 201663664 U CN201663664 U CN 201663664U
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Abstract
The utility model relates to a dual-CPU network video server, which comprises a video input port, an audio input port, a analog-digital conversion circuit, a processor, a storage device and a network interface. The video input port is connected with the analog-digital conversion circuit, the analog-digital conversion circuit and the audio input port are both connected with the processor, the processor is connected with the storage device and the network interface, wherein the processor comprises a DSP controller used for compression of video image data and an ARM controller used for network transmission of video data, the analog-digital conversion circuit is connected with an FPGA circuit, the FPGA circuit is connected with the DSP controller, the DSP controller is connected with the ARM controller, and the ARM controller is provided with a network interface. The utility model integrates the efficient encoding and compression of image data and the rapid transmission of network data.
Description
Technical field
The utility model belongs to the network monitoring field, especially a kind of network video server.
Background technology
Network video server is a kind of audio, video data is carried out encoding process and finishes the special equipment of Network Transmission, thereby realizes the function of remote monitoring.Video server can be regarded as the web camera of not being with camera lens, or not with the DVR of hard disk, one is made of one or more analog videos input port, image digitization processor, compression chip and the server with network connecting function.After the analog video signal digitized processing of network video server with input, be sent on the network, thereby realize the purpose of remote real-time monitoring with the pattern of digital signal.Since video server with analog video camera successfully " conversion " be web camera, it is highly suitable for mutually integrated with existing analogue CCTV (cctv surveillance) system.
Network video server is widely used, and the application that network video server can be in local area network (LAN) is applicable to sub-district, intelligent building and has the supervisory control system of local area network platform; Network video server can utilize ADSL to realize remote image monitoring, is used for the monitoring that far-end disperses, and is suitable for occasions such as kindergarten, campus, tourist attractions; Network video server can be used in large-scale supervisory control system, relies on dedicated network or telecommunications VPN network usually, realizes long-range centralized monitor, is fit to occasions such as urban public security, power communication.
By utility model patent " a kind of four tunnel network video servers ", patent No. 200820214491.X addresses, the network monitoring video server is a kind of special equipment of realizing that audio, video data coding, Network Transmission are handled, it one constitute by audio/video coder, network interface, audio-video interface, RS422/RS485 serial line interface, RS232 serial line interface etc.
Audio frequency and video condensing encoder: because the analog video data amount is very big, after the digital-to-analogue conversion, data volume is also very big, so will utilize ripe coding techniques, with video data satisfying the coding that carries out high compression ratio under the technical indicator that Network Transmission requires, to satisfy transmission requirement.One adopts encoders such as M-JPEG network video server in the past, and network video server is to adopt MPEG4 or coding techniques H.264 basically at present, more can satisfy the requirement of video network transmission.
Network interface: the Ethernet interface of network video server can be realized the IP networking easily, realizes transfer of data.Network video server mainly adopts the network transmission of data such as agreement realization audio, video data, control data and state detecting information such as TCP/IP.
Audio-video interface: network video server has standard analog audio frequency and video input interface, the convenient vision signal that monitors each passage.
The RS422/RS485 serial line interface: network video server has the RS422/RS485 serial communication interface, can be external as various peripheral hardwares such as The Cloud Terrace, quicks by connection.
A kind of technology of network video server is to adopt CPU+ASIC (application-specific integrated circuit (ASIC)) mode, and this Scheme Choice is built with CPU and specialized media process chip.Advantage is that the development time is shorter relatively, but owing to adopt ASIC, flexibility is relatively poor, and product is in case typing is difficult to change, and is superseded substantially.
The another kind of technology of network video server adopts ready-made software compress technique usually, look the audio compression encryption algorithm as MPEG4, and compressed format mostly is CIF (CLV Common Intermediate Format), also be the single bit stream compress technique, the size maximum can reach 352 * 288 pixels, if more the video compression of large scale pixel has only the hardware mechanism that adopts algorithm H.264 to add multiprocessor, as utility model patent " embedded H.264 network video server ", the network video server that the employing that the patent No. 2005201074490.1 is addressed is made up of two groups of Digital Signal Processing DSP modules.Two DSP structures are a kind of maturation but old hardware configuration, and two DSP structures help the encoding compression processing of view data, but are helpless to the quick transmission of network data.
Summary of the invention
For the deficiency of the transmission of the encoding compression that can not take into account view data that overcomes existing network video server and network data, the utility model provides the network video server of dual-cpu structure of the quick transmission of a kind of high efficient coding compression that can take into account view data and network data.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of network video server of dual-cpu structure, comprise the video inputs mouth, audio input port, analog to digital conversion circuit, processor, memory device and network interface, described video inputs mouth connects analog to digital conversion circuit, analog-digital conversion circuit as described all is connected with processor with audio input port, described processor connects memory device and network interface, described processor comprises in order to the dsp controller that carries out video image data compression with in order to video data is carried out the ARM controller of Network Transmission, analog-digital conversion circuit as described is connected with the FPGA circuit, described FPGA circuit is connected with described dsp controller, described dsp controller is connected with the ARM controller, and described ARM controller has network interface.
Further, described memory device comprises hard disk drive and CF card, and described ARM controller comprises IDE hard disk digital video recorder module, and described IDE hard disk digital video recorder module connects described hard disk drive.
Described ARM controller also comprises the software upgrading module in order to online software upgrade, online factory reset and selector switch factory reset.
Described ARM controller also comprises remote alarm interface, and described remote alarm interface is connected with the warning input/output module.
Described network interface comprises RS485 interface, RS232 interface and USB interface.
The beneficial effects of the utility model mainly show: can take into account the high efficient coding compression of view data and the quick transmission of network data.
Description of drawings
Fig. 1 is the theory diagram of the network video server of dual-cpu structure.
Fig. 2 is ethernet interface circuit figure.
Fig. 3 is the circuit diagram of hard-disk interface circuit and real time clock circuit.
Fig. 4 is a network video server rear board interface schematic diagram.
Fig. 5 is warning input/output interface circuit figure.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
With reference to Fig. 1-Fig. 5, a kind of network video server of dual-cpu structure, comprise the video inputs mouth, audio input port, analog to digital conversion circuit, processor, memory device and network interface, described video inputs mouth connects analog to digital conversion circuit, analog-digital conversion circuit as described all is connected with processor with audio input port, described processor connects memory device and network interface, described processor comprises in order to the dsp controller that carries out video image data compression with in order to video data is carried out the ARM controller of Network Transmission, analog-digital conversion circuit as described is connected with the FPGA circuit, described FPGA circuit is connected with described dsp controller, described dsp controller is connected with the ARM controller, and described ARM controller has network interface.
Described memory device comprises hard disk drive and CF card, and described ARM controller comprises IDE hard disk digital video recorder module, and described IDE hard disk digital video recorder module connects described hard disk drive.Described ARM controller also comprises the software upgrading module in order to online software upgrade, online factory reset and selector switch factory reset.Described ARM controller also comprises remote alarm interface, and described remote alarm interface is connected with the warning input/output module.Described network interface comprises RS485 interface, RS232 interface and USB interface.
Present embodiment adopts the network video server of a kind of ARM+DSP, adopts the TI high-powered DSP TMS320C6415-500 of company to carry out view data and handles, and controls system management and Network Transmission with the StrongARM SA1110 chip of Intel Company.The purpose of this utility model provides the network video server of a kind of couple of CPU, not only can compress processing to the audio frequency and video electronic signal of input, the image that reaches high size carries out full frame video compression or undistorted compression, can also realize the efficient high-quality transmission of view data at network.
Network video server not only has basic comprisings such as audio/video coder, network interface, audio-video interface, RS422/RS485 serial line interface, RS232 serial line interface, also has the following advantages:
A kind of network video server based on embedded platform, based on the up-to-date hardware platform of ARM+DSP, software adopts dsp chip to finish H.264 video coding compression algorithm based on the operating system of built-in Linux.
As Fig. 2, carry out video monitoring by local area network (LAN) or wide area network and design, this is a multiple functional Internet video solution, can support the wireless network of Ethernet or 802.11x, and Ethernet adopts ICP/IP protocol, and wireless network adopts the 802.11x agreement.Real-time Transmission 4 road CIF format patterns.Video compression of the present invention has two kinds, can four road CIF image or one road CIF and another road is the VGA image.
As Fig. 3, network video server has the function of real-time video recording, have the user of administration authority can be by network control they record a video, video reproduction, search, motion detection perhaps is set triggers video recording, reports to the police and trigger video recording.It is various informative to record a video, and the video recording data can exist in video server built-in hard disk or the PC hard disk.Video recording exists in the built-in hard disk, and when network occurred interrupting because of accident, the video recording of built-in hard disk was unaffected, can be used as the backup in the PC video recording.Network video server of the present invention is supported built-in IDE hard disk digital video recorder, can record a video by hand, mobile detection triggers video recording, report to the police and trigger video recording.The present invention has the early warning recording function, can store about 4 minutes that trigger before recording a video.
Network video server has software upgrading function: have online software software upgrading and online factory reset, can directly give the video server upgrade software of installing at engineering site.Factory reset has two kinds of methods, by selector switch factory reset and long-range by the IE factory reset.
As Fig. 5, network video server has remote alarm interface: 4 tunnel warning input and 4 tunnel warning output.
Network video server has fail safe: the cryptographic authentication mechanisms with user and keeper.
Network video server has mobile detection and triggers video recording: can carry out mobile detection by the appointed area, and trigger built-in hard disk or PC hard disc recording.
Network video server has the high characteristics of stability: adopt (SuSE) Linux OS, embedded OS is more stable, not influenced by virus.
The explanation of network video server hardware configuration as shown in Figure 1.
H.264 compressed encoding partly is the key components of ARM+DSP system design.Owing to H.264 be ripe video coding technique, so the part of ARM+DSP system continues to continue to use H.264 video coding compression algorithm.
Dsp chip TMS320C6415-500 periphery hardware device is described:
At first, by A/D video conversion chips such as TVP5145 the analog video signal of outside CMOS or the collection of CCD camera lens is converted to FPGA (field programmable gate array) and the manageable 8Bit of DSP or 16Bit numeral Y, U, V vision signal.By being loaded configuration, A/D video conversion chip IIC codes such as TVP5145 can be configured as ITU-R BT.601 or ITU-R BT.656 (NTSC, PAL) form.In native system, TVP5145 is configured to ITU-R BT.601_PAL4:2:216Bit form.16Bit Y, the U of TVP5145, the data/address bus of V data between TVP5145 and FPGA are delivered to FPGA and are done digital coding ordering processing.Because FPGA price and interior door number consider to select for use the XC2S100E chip of Xilinx.Each row 16Bit video Y, U that FPGA sends here TVP5145, V data are Y, U, V in the block RAM of FPGA block sequencing is about to Y, U, independent separately being arranged in the corresponding continuous address of block RAM of V data.By the SDRAM control module among the FPGA Y, U, V data are delivered among the 16Mbit SDRAM that links to each other with FPGA again and done the data frame buffer.16Mbit SDRAM can buffer memory 4 frame 352X 288 view data.Can be after frame data are filled with by the controlling mechanism between FPGA and DSP peek, make DSP take frame data away from SDRAM with the data BUFFER of EMIF mouth by FPGA.DSP can carry out the H.264 data compression process of algorithm to these frame data.Can save the workload that DSP sorts greatly by the ordering of FPGA, to reach the purpose that improves running efficiency of system.DSP is by the external 2Mbit FLASH of EMIF passage and 2 total capacity 16Mbit SDRAM.
CE0 is selected for the 0X80000000--0X80FFFFFF sheet in 16MB SDRAM DSP addresses distributed space
CE1 is selected for the 0X90000000--0X901FFFFF sheet in 2MB FLASH DSP addresses distributed space
DSP links to each other with TLV320AIC23CPW Audio Codec (audio coding) by the MCBSP0 mouth, obtains voice data by DSP and does G.729 audio compression algorithm.TLV320AIC23CPW Audio Codec adopts the IIC control mode, by two GPIO mouth loading code of StrongARM.DSP connects the JTAG programming port of FPGA by serial ports MCBSP1, and DSP is by the FLASH loading procedure when system powers on, and the FPGA code that is stored in FLASH inside simultaneously also loads by the MCBSP1 mouth of DSP.DSP links to each other with the data/address bus of StrongARM by the HPI mouth of 16Bit.
ARM chip StrongARM SA1110 periphery hardware device is described:
DSP links to each other with the data/address bus of StrongARM by the HPI mouth of 16Bit.StrongARM meets 2 16MB SDRAM and 2 8MB FLASH altogether altogether by its data/address bus and address bus.StrongARM can expand bigger SDRAM and FLASH (16MB or 32MB).Simultaneously, network chip, big or small hard disc apparatus, pcmcia card seat also are connected with address bus by the data/address bus of StrongARM.Data/address bus wherein, address bus and control signal be owing to be with a plurality of equipment, line long, thus through 244 or 245 as driving.Alternative is switched chip as PIMCIA card 3V-5V power supply control chip with TI TPS751013V-5V.And StrongARM has connect two 232 serial ports by two serial ports, has connect one 485 mouthfuls by the UART3 mouth.Connect four tunnel warning inputs, output by the GPIO mouth.
StrongARM SA1110 address space distributes:
8MB FLASH ARM addresses distributed space is 0h00000000-0h000F FFFF StaticBank Select0 (128Mbytes)
16MB SDRAM ARM addresses distributed space is 0h08000000-0h08FF FFFF Static BankSelect1 (128Mbytes)
Hardisk ARM addresses distributed space is 0h10000000-0h17FF FFFF Static BankSelect2 (128Mbytes)
Ethernet AX88796ARM addresses distributed space is 0h18000000-0h1FFF FFFF StaticBank Select3 (128Mbytes)
PCMCIA CARD ARM addresses distributed space is 0h20000000-0h2FFF FFFF PCMCIASocket0 Space (256Mbytes)
PCMCIA CARD ARM addresses distributed space is 0h30000000-0h3FFF FFFF PCMCIASocket1 Space (256Mbytes)
The embedded microprocessor that adopts is the SA1110 of Intel based on the StrongARM art designs, this is a 32 powerful risc microcontrollers, its clock frequency is up to 206MHz, and there are powerful instruction manipulation ability, cacheability, register management ability, read/write buffers ability in inside.Software platform of the present invention adopts the Linux embedded OS, selects the advantage of Linux to be that it is an open source code, can make amendment to bottom software according to different watch-dogs, reduces hardware conflicts, increases the stability of system.With the relevant interface circuit of SA1110: Fig. 2 is ethernet interface circuit figure, and Fig. 3 is hard-disk interface circuit and real time clock circuit, and Fig. 5 is the warning input/output interface.
Network video server has software upgrading function: have online software upgrade and online factory reset, can directly give the video server upgrade software of installing at engineering site.Factory reset has two kinds of methods, by selector switch factory reset and long-range by the IE factory reset.
Network video server has remote alarm interface: 4 tunnel warning input and 4 tunnel warning output; Its implementation method is as follows:
Network video server rear board interface schematic diagram such as Fig. 4 from left to right are report to the police ground, the input of reporting to the police, report to the police output, RS485 interface, selector switch successively.
JP1 is the ground interface of reporting to the police: 1 is the output ground of reporting to the police; 2 are the input ground of reporting to the police.
JP2 is a remote alarm interface: 1,2,3,4 are passage 1-4 warning output; 5,6,7,8 are passage 1-4 warning input
JP3 is the RS485 interface: as shown in Figure 4,1 is the B of RS485, and 2 is the A of RS485, and the RS485 communication baud rate is 9600bps, and the The Cloud Terrace agreement can manually add at client software.
JP4 is a selector switch: 1 is provided with for recovering former factory, and 2 are the setting of band hard disk, and 4 is the refresh routine setting, and 2,3 press simultaneously and are disk format;
Triggering the output of reporting to the police has two kinds of methods, and import by reporting to the police and trigger the output of reporting to the police, or directly control warning output.Concrete method of operation is:
Trigger the output of reporting to the police by the input of reporting to the police, choose " triggering control " in monitoring software, the warning passage is made as " triggering automatically ", triggers the corresponding input of reporting to the police this moment, and the output channel of reporting to the police accordingly can become effectively.For example, warning passage 1 is made as " triggering automatically ", the S1 that pushes button, and warning output channel 1 meeting output low level, luminous tube L1 brightens.
Directly control is reported to the police and exported: choose " triggering control " in monitoring software, warning passage one is made as " manual triggers ", clicks " response channel one is reported to the police ", warning output channel 1 meeting output low level, and luminous tube L1 brightens.
Network video server of the present invention provides the method for factory reset very easily, when the IP address of not remembering network video server clearly or when forgetting username and password, can use factory reset.After the factory reset, you will reset the property parameters of network video server.
Factory reset has two kinds of methods, by selector switch factory reset and long-range by the IE factory reset.
By the selector switch factory reset, concrete method of operation is as follows: press the 1st (promptly first selector switch being changed to ON) of selector switch, other 3 selector switches all are in the OFF state, and promptly selector switch is not pressed, connect netting twine then, energising.Begin and can ping lead at order line input Ping 192.168.0.24-t this moment, can break once during program initialization, and ping is logical for the second time, factory reset.
Long-range by the IE factory reset, concrete method of operation is as follows: the IP address of input video server in the address box of IE, the interface that shows " network video server ", input manager person's user name, password, click " function management "-＞network is set, can see " network parameter setting " interface, choose " factory reset ", click " submission ".This moment, video server can restart, and the IP address is changed into 192.168.0.24.
Its acquiescence Default Value is: host name-XXXXX; Domain name-XXXXX; IP-192.168.0.24; Subnet mask-255.255.255.0; Default gateway-192.168.0.1; Default username-admin, password-admin, authority: management and broadcast; Default username-iew, password-view, authority-broadcast.
Claims (5)
1. the network video server of a dual-cpu structure, comprise the video inputs mouth, audio input port, analog to digital conversion circuit, processor, memory device and network interface, described video inputs mouth connects analog to digital conversion circuit, analog-digital conversion circuit as described all is connected with processor with audio input port, described processor connects memory device and network interface, it is characterized in that: described processor comprises in order to the dsp controller that carries out video image data compression with in order to video data is carried out the ARM controller of Network Transmission, analog-digital conversion circuit as described is connected with the FPGA circuit, described FPGA circuit is connected with described dsp controller, described dsp controller is connected with the ARM controller, and described ARM controller has network interface.
2. the network video server of dual-cpu structure as claimed in claim 1, it is characterized in that: described memory device comprises hard disk drive and CF card, described ARM controller comprises IDE hard disk digital video recorder module, and described IDE hard disk digital video recorder module connects described hard disk drive.
3. the network video server of dual-cpu structure as claimed in claim 1 or 2, it is characterized in that: described ARM controller also comprises the software upgrading module in order to online software upgrade, online factory reset and selector switch factory reset.
4. the network video server of dual-cpu structure as claimed in claim 1 or 2, it is characterized in that: described ARM controller also comprises remote alarm interface, described remote alarm interface is connected with the warning input/output module.
5. the network video server of dual-cpu structure as claimed in claim 1 or 2, it is characterized in that: described network interface comprises RS485 interface, RS232 interface and USB interface.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881161A (en) * | 2012-09-28 | 2013-01-16 | 武汉烽火众智数字技术有限责任公司 | Method and device for detecting moving vehicles on basis of multi-frame differences and cast shadow removal |
| CN103297744A (en) * | 2012-03-02 | 2013-09-11 | 江阴中科矿业安全科技有限公司 | Drill carriage working face digital video capture system based on DSP and FPGA |
| CN105204586A (en) * | 2015-10-27 | 2015-12-30 | 北京天华星航科技有限公司 | Novel thin client |
| CN106921861A (en) * | 2015-12-25 | 2017-07-04 | 北京计算机技术及应用研究所 | The realtime graphic compressed platform of multiple processor structure |
| CN107168157A (en) * | 2017-05-17 | 2017-09-15 | 西安交通大学 | Opened industrial robot controller architecture based on dual processors+FPGA |
| CN107277373A (en) * | 2017-07-28 | 2017-10-20 | 北京计算机技术及应用研究所 | A kind of hardware circuit of high speed real time image processing system |
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2010
- 2010-03-17 CN CN 201020133747 patent/CN201663664U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103297744A (en) * | 2012-03-02 | 2013-09-11 | 江阴中科矿业安全科技有限公司 | Drill carriage working face digital video capture system based on DSP and FPGA |
| CN102881161A (en) * | 2012-09-28 | 2013-01-16 | 武汉烽火众智数字技术有限责任公司 | Method and device for detecting moving vehicles on basis of multi-frame differences and cast shadow removal |
| CN102881161B (en) * | 2012-09-28 | 2014-05-14 | 武汉烽火众智数字技术有限责任公司 | Method and device for detecting moving vehicles on basis of multi-frame differences and cast shadow removal |
| CN105204586A (en) * | 2015-10-27 | 2015-12-30 | 北京天华星航科技有限公司 | Novel thin client |
| CN106921861A (en) * | 2015-12-25 | 2017-07-04 | 北京计算机技术及应用研究所 | The realtime graphic compressed platform of multiple processor structure |
| CN107168157A (en) * | 2017-05-17 | 2017-09-15 | 西安交通大学 | Opened industrial robot controller architecture based on dual processors+FPGA |
| CN107277373A (en) * | 2017-07-28 | 2017-10-20 | 北京计算机技术及应用研究所 | A kind of hardware circuit of high speed real time image processing system |
| CN107277373B (en) * | 2017-07-28 | 2020-02-07 | 北京计算机技术及应用研究所 | Hardware circuit of high-speed real-time image processing system |
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