CN102497538A - High-speed image acquisition and transmission platform based on ARM - Google Patents
High-speed image acquisition and transmission platform based on ARM Download PDFInfo
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- CN102497538A CN102497538A CN2011104167946A CN201110416794A CN102497538A CN 102497538 A CN102497538 A CN 102497538A CN 2011104167946 A CN2011104167946 A CN 2011104167946A CN 201110416794 A CN201110416794 A CN 201110416794A CN 102497538 A CN102497538 A CN 102497538A
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Abstract
The invention discloses a high-speed image acquisition and transmission platform based on an ARM (advanced RISC machine) in the technical field of image acquisition and transmission. The platform comprises a power supply, a camera, a CIF interface, a DDR memory, a FLASH memory, a microprocessor ARM, a JTAC interface, a debugging serial port, a USB interface and a computer. The invention realizes the acquisition and transmission of high-resolution CMOS images under the condition of low cost.
Description
Technical field
The invention belongs to IMAQ and transmission technique field, relate in particular to a kind of high-speed image sampling transmission platform based on ARM.
Background technology
Embedded system based on ARM is made up of four parts such as peripheral hardware equipment (for example CMOS camera), embedded OS (for example built-in Linux) and system software of ARM, system; Being one is the digital system of core with the microprocessor, relates to the technology of hardware and software two aspects.
The ARM11 series microprocessor is the risc processor of new generation that ARM company releases in recent years, and it is that ARM newly instructs framework---the first generation invention of ARMv6 realizes.
The ARMv6 framework is formulated according to demands such as follow-on consumer electronics, wireless device, network application and automobile electronics.The media processing capacity of ARM11 and low-power consumption characteristics are specially adapted to wireless and consumer electronics product; Its high data throughput and high performance combination are fit to network processes and use very much;
Existing do not have the buffer memory of image based on the IMAQ scheme of DSP, and the processing speed of DSP becomes transmission bottleneck.And can accomplish image buffer storage based on the transmission plan of FPGA+SRAM, and but need the USB controller to accomplish transfer of data, cost increases greatly, has prolonged the research and development of products time greatly for the exploitation of USB driver.
Summary of the invention
Do not have deficiencies such as image buffer storage to mentioning existing IMAQ scheme in the above-mentioned background technology, the present invention proposes a kind of high-speed image sampling transmission platform based on ARM based on DSP.
Technical scheme of the present invention is; Based on the high-speed image sampling transmission platform of ARM, it is characterized in that this platform comprises power supply, camera, CIF interface, DDR internal memory, FLASH memory, microprocessor ARM, JTAC interface, debug serial port, USB interface and computer;
Said power supply is connected with USB interface with DDR internal memory, FLASH memory, microprocessor ARM respectively; Camera is connected with the CIF interface; USB interface is connected with computer; Microprocessor ARM is connected with USB interface with CIF interface, DDR internal memory, FLASH memory, JTAC interface, debug serial port respectively;
Said CIF interface is used to connect camera and microprocessor ARM;
Said microprocessor ARM is used for data processing;
Said JTAC interface is used to connect simulator.
Said camera is the MT9P111 of Micron Technology, and resolution is 2592*1944.
The ultimate resolution of said CIF interface support is 4096*4096.
Said DDR internal memory is made up of two 16 128M Byte mobile DDR.
Said FLASH memory is that capacity is the MLC type NandFlash K9G8G08 of 1G.
Said microprocessor ARM is the ARM11 of the S3C6410 of Samsung.
Said platform operation Linux 2.6 operating systems.
The present invention can realize the collection and the transmission of high resolution CMOS image, and bigger image processing buffer memory is arranged, and image processing speed is fast; The present invention can accomplish the collection and the transmission of high resolution CMOS image under situation cheaply, the CDC agreement through USB converts USB device to the network equipment and carries out transfer of data, shortens the research and development time greatly.
Description of drawings
Fig. 1 is a high-speed image sampling transmission system hardware block diagram;
Fig. 2 is a high-speed image sampling transmission system block diagram.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment is elaborated.Should be emphasized that following explanation only is exemplary, rather than in order to limit scope of the present invention and application thereof.
Constitute based on the core of the high-speed image sampling transmission platform of ARM (Advanced RISC Machines) arm processor by integrated high-speed USB client 2.0 interfaces and high resolution CMOS camera collection interface.Arm processor is controlled high-resolution CMOS camera output image through self iic bus, through Camera Interface (CIF) the interface images acquired row cache of going forward side by side.Operation Linux 2.6 operating systems on the software, the mechanism of realization USB communication apparatus class (CDC) agreement realizes the USB Virtual Ethernet on Ethernet controlling models (ECM) basis of CDC.High-speed image sampling transmission system platform based on ARM is transferred to PC through the virtual network transmission with the high-definition picture of gathering, and realizes the IMAQ transfer function.
1. the native system arm processor is selected the ARM11 processor S3C6410 of Sumsung company; The ultimate resolution of Camera Interface (CIF) the interface support that it is integrated is 4096*4096, and internal memory is by two 16 the MLC type NandFlash K9G8G08 that 128M Byte mobile DDR forms, the Flash memory is selected 1G Byte for use.That the transducer of CMOS camera adopts is the MT9P111 of Micron Technology, and resolution is 2592*1944, and both full-pixel is exported maximum frame per second can arrive 15 frame per seconds.System block diagram is as shown in Figure 1, and RS232 is a debug serial port, and power supply is unidirectional connection, JTAG is a debugging interface, connects simulator, and DDR internal memory, ARM11 and Flash are the cores of system.
2. gather the view data of high resolution CMOS camera, and, be connected with PC from interface through the USB on the ARM platform at self several frame data of RAM district buffer memory.
3. on the ARM platform, move Linux 2.6 operating systems; On S3C6410 ARM11 platform, transplant the linux kernel and the webcam driver program of highest version; Realize the mechanism of USB communication apparatus class (CDC) agreement, on Ethernet controlling models (ECM) basis of CDC, realize the USB Virtual Ethernet.Can the ARM land identification be become the network equipment after the linux.inf that PC end installation linux kernel carries drives, adopt network programming and ARM platform to carry out the image transmission.
Explain: the ARM platform block diagram in the hardware is as shown in Figure 1; Software section is made up of bootloader, webcam driver, file system, application program; Wherein, bootloader accomplishes the initialization to DDR, the guiding of embedded Linux system; What webcam driver was accomplished is initialization and the IMAQ to the CMOS camera, and what application program was accomplished is the transmission to image.
The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (7)
1. based on the high-speed image sampling transmission platform of ARM, it is characterized in that this platform comprises power supply, camera, CIF interface, DDR internal memory, FLASH memory, microprocessor ARM, JTAC interface, debug serial port, USB interface and computer;
Said power supply is connected with USB interface with DDR internal memory, FLASH memory, microprocessor ARM respectively; Camera is connected with the CIF interface; USB interface is connected with computer; Microprocessor ARM is connected with USB interface with CIF interface, DDR internal memory, FLASH memory, JTAC interface, debug serial port respectively;
Said CIF interface is used to connect camera and microprocessor ARM;
Said microprocessor ARM is used for data processing;
Said JTAC interface is used to connect simulator.
2. the high-speed image sampling transmission platform based on ARM according to claim 1 is characterized in that said camera is the MT9P111 of Micron Technology, and resolution is 2592*1944.
3. the high-speed image sampling transmission platform based on ARM according to claim 1, the ultimate resolution that it is characterized in that the support of said CIF interface is 4096*4096.
4. the high-speed image sampling transmission platform based on ARM according to claim 1 is characterized in that said DDR internal memory is made up of two 16 128M Byte mobile DDR.
5. the high-speed image sampling transmission platform based on ARM according to claim 1 is characterized in that said FLASH memory is that capacity is the MLC type Nand Flash K9G8G08 of 1G.
6. the high-speed image sampling transmission platform based on ARM according to claim 1 is characterized in that said microprocessor ARM is the ARM11 of the S3C6410 of Samsung.
7. the high-speed image sampling transmission platform based on ARM according to claim 1 is characterized in that said platform operation Linux 2.6 operating systems.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104167946A CN102497538A (en) | 2011-12-14 | 2011-12-14 | High-speed image acquisition and transmission platform based on ARM |
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| CN2011104167946A CN102497538A (en) | 2011-12-14 | 2011-12-14 | High-speed image acquisition and transmission platform based on ARM |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102932597A (en) * | 2012-11-02 | 2013-02-13 | 邱虹云 | Astronomy charge coupled device (CCD) camera controller with wireless fidelity (WIFI) interface |
| CN109361871A (en) * | 2018-11-30 | 2019-02-19 | 四川九州电子科技股份有限公司 | A method of IP Camera is modeled as USB camera |
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| CN101719981A (en) * | 2009-12-01 | 2010-06-02 | 西安终南信息技术有限公司 | Underground total darkness environment high definition video collecting and processing system as well as collecting and processing method |
| CN101916429A (en) * | 2010-07-09 | 2010-12-15 | 浙江大学 | Geometric correction and disparity extraction device of binocular camera |
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2011
- 2011-12-14 CN CN2011104167946A patent/CN102497538A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101719981A (en) * | 2009-12-01 | 2010-06-02 | 西安终南信息技术有限公司 | Underground total darkness environment high definition video collecting and processing system as well as collecting and processing method |
| CN101916429A (en) * | 2010-07-09 | 2010-12-15 | 浙江大学 | Geometric correction and disparity extraction device of binocular camera |
Non-Patent Citations (2)
| Title |
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| 叶俊华: "基于ARM11的嵌入式视频处理终端设计", 《中国优秀硕士学位论文权威呢数据库 信息科技辑》 * |
| 未知: "《ARM11 S3C6410_中文用户手册》", 《URL:ISHARE.IASK.SINA.COM.CN/F/19591212.HTML?SUDAREF=WWW.GOOGLE.COM.HK&RETCODE=0》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932597A (en) * | 2012-11-02 | 2013-02-13 | 邱虹云 | Astronomy charge coupled device (CCD) camera controller with wireless fidelity (WIFI) interface |
| CN102932597B (en) * | 2012-11-02 | 2016-08-03 | 邱虹云 | There is the ASTRONOMICAL CCD camera controller of WIFI interface |
| CN109361871A (en) * | 2018-11-30 | 2019-02-19 | 四川九州电子科技股份有限公司 | A method of IP Camera is modeled as USB camera |
| CN109361871B (en) * | 2018-11-30 | 2020-07-24 | 四川九州电子科技股份有限公司 | Method for simulating network camera as USB camera |
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Application publication date: 20120613 |