CN104469122A - Image acquisition system - Google Patents
Image acquisition system Download PDFInfo
- Publication number
- CN104469122A CN104469122A CN201310423879.6A CN201310423879A CN104469122A CN 104469122 A CN104469122 A CN 104469122A CN 201310423879 A CN201310423879 A CN 201310423879A CN 104469122 A CN104469122 A CN 104469122A
- Authority
- CN
- China
- Prior art keywords
- usb
- image acquisition
- interface
- microcontroller
- acquisition system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention belongs to the technical field of data acquisition and processing, and particularly relates to an image acquisition system, which can be applied to a plurality of fields needing image acquisition and processing. The image acquisition system comprises a USB (Universal Serial Bus) camera, a USB interface, an ROM (Read Only Memory), an SDRAM (Synchronous Dynamic Random Access Memory), a PC (Personal Computer) and a microcontroller. The image acquisition system is structurally characterized in that the microcontroller is connected with the USB interface, the ROM, the SDRAM and the PC respectively; and the USB interface is connected with the USB camera.
Description
Technical field
the invention belongs to data acquisition process technical field, particularly relate to a kind of image capturing system.
Background technology
rapidly, utilizing embedded Linux system to realize IMAQ becomes possibility for embedded technology and Linux technical development.Conventional images acquisition system range of application is narrow, can not meet the demand of social high speed development.
Summary of the invention
the present invention is exactly for the problems referred to above, provides a kind of and can be used for the multiple image capturing system needing the field of IMAQ and process.
to achieve these goals, the present invention adopts following technical scheme, the present invention includes USB camera, USB interface, ROM, SDRAM, PC, microcontroller, its structural feature microcontroller is connected with USB interface, ROM, SDRAM, PC respectively, and USB interface is connected with USB camera.
as a kind of preferred version, microcontroller of the present invention adopts S3C2410 processor.
as another kind of preferred version, microcontroller of the present invention is by JTAG, network interface, serial ports are connected with PC respectively.
beneficial effect of the present invention.
the present invention is based on the image capturing system of ARM and built-in Linux operating system, make use of Video4Linux video device interface, under Qt/Embedded environment, develop pattern manipulation interface, may be used for, in the middle of the multiple field needing IMAQ and process, there is good using value.
Accompanying drawing explanation
in order to make technical problem solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with the drawings and the specific embodiments, the present invention is further elaborated.Should be appreciated that embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
fig. 1 is schematic block circuit diagram of the present invention.
Embodiment
as shown in the figure, the present invention includes USB camera, USB interface, ROM, SDRAM, PC, microcontroller, microcontroller is connected with USB interface, ROM, SDRAM, PC respectively, and USB interface is connected with USB camera.
described microcontroller adopts S3C2410 processor.
described microcontroller is by JTAG, network interface, serial ports are connected with PC respectively.
the USB camera of process chip that to be a with OV511 be, OV511 is built-in USB transceiver controller, issues ARM by DID by USB.ARM is host side herein, and application program is by file system interface access USB device class driver and USBD, and after data request packet passes to USBD, the interface provided by HCD passes to HCD, and data are sent on usb bus by HCD.USBD interface will carry out the tasks such as camera information detection, data format conversion, the configuration of OV511 control word and kernel registration.
subsystem of video Video4Linux in system is that video application provides a set of unified API, and video application uses Video4Linux API can operate various different video capture device, obtains the RGB data that camera collection arrives.Video4Linux is to Virtual File System registration video equipment file, and application program is by operation video equipment file access video equipment.
in the device file that Linux and Video4Linux is relevant, main introduction/dev/video carries out the Software for Design of video acquisition part.Program comprises inner 32 8-digit microcontrollers being integrated with ARM company ARM920T processor core of processor S3C2410 of the correlation function Samsung companies such as device initialize, opening of device, IMAQ, device shutdown, have the resource such as Timer, Parallel I/O mouth, ADC, Touch Screen interface, USB controller of independently 16KB Instruction Cache and 16KB data Cache, RAM controller, nand flash memory controller, UART, DMA, band PWM, nominal frequency 203MHz, maximum operating frequency can reach 266MHz.
on this basis, the hardware system of platform extends the SDRAM of NandFlash and 64MB of 64MB.Meanwhile, jtag interface, serial interface, HOST USB interface and touch screen interface is established.USB camera is connected with system by HOST USB interface.
in embedded cross translation and compiling environment model, TARGET is Target Board, and HOST is exploitation main frame.The (SuSE) Linux OS of desktop installed by exploitation main frame, and that the present invention installs is Fedora core 5.On the (SuSE) Linux OS of exploitation main frame, the Linux boot of cross compile Target Board, kernel and file system, can be downloaded on Target Board by jtag interface, serial ports and Ethernet interface afterwards and run.
above content is the further description done the present invention in conjunction with concrete preferred implementation; can not assert that specific embodiment of the invention is confined to these explanations; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; some simple deduction or replace can also be made, all should be considered as belonging to the protection range that claims that the present invention submits to are determined.
Claims (3)
1. an image capturing system, comprises USB camera, USB interface, ROM, SDRAM, PC, microcontroller, and it is characterized in that microcontroller is connected with USB interface, ROM, SDRAM, PC respectively, USB interface is connected with USB camera.
2. a kind of image capturing system according to claim 1, is characterized in that described microcontroller adopts S3C2410 processor.
3. a kind of image capturing system according to claim 1, is characterized in that described microcontroller is by JTAG, network interface, serial ports are connected with PC respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310423879.6A CN104469122A (en) | 2013-09-17 | 2013-09-17 | Image acquisition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310423879.6A CN104469122A (en) | 2013-09-17 | 2013-09-17 | Image acquisition system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104469122A true CN104469122A (en) | 2015-03-25 |
Family
ID=52914430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310423879.6A Pending CN104469122A (en) | 2013-09-17 | 2013-09-17 | Image acquisition system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104469122A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106792478A (en) * | 2017-01-11 | 2017-05-31 | 郑州云海信息技术有限公司 | A kind of system of remote wireless monitoring patient in hospital symptom |
| CN110650307A (en) * | 2019-10-30 | 2020-01-03 | 广州河东科技有限公司 | QT-based audio and video plug flow method, device, equipment and storage medium |
-
2013
- 2013-09-17 CN CN201310423879.6A patent/CN104469122A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106792478A (en) * | 2017-01-11 | 2017-05-31 | 郑州云海信息技术有限公司 | A kind of system of remote wireless monitoring patient in hospital symptom |
| CN110650307A (en) * | 2019-10-30 | 2020-01-03 | 广州河东科技有限公司 | QT-based audio and video plug flow method, device, equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI488117B (en) | A Kind of Godson CPU Motherboard BIOS and Interrupt Realization Method | |
| US10387182B2 (en) | Direct memory access (DMA) based synchronized access to remote device | |
| DE102019009207B3 (en) | DEVICES, METHODS AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIA FOR DVSEC FOR EFFICIENT PERIPHERAL DEVICE MANAGEMENT | |
| CN101751284B (en) | I/O resource scheduling method for distributed virtual machine monitor | |
| CN102708034B (en) | Computer remote and local monitoring system based on CPU (central processing unit) with serial port function | |
| CN107430570B (en) | Additional secure execution environment with SR-IOV and xHCI-IOV | |
| DE112016004332T5 (en) | METHODS, DEVICES AND SYSTEMS FOR TAKING A COMPARISON OF DATA CONNECTIONS | |
| DE102018007025A1 (en) | System, method and apparatus for SRIS mode selection for PCIe | |
| CN102096597A (en) | Virtual bus device using management engine | |
| DE102019132213A1 (en) | Address translation for scalable linked devices | |
| CN101957787A (en) | Method for debugging blade server by using BMC module | |
| CN104503825A (en) | Mixed type equipment virtualization method based on KVM (Kernel-based Virtual Machine) | |
| CN104503594A (en) | PS/2 keyboard-mouse remote switching system | |
| CN105556461B (en) | Techniques for pre-OS image rewriting to provide cross-architecture support, security introspection, and performance optimization | |
| CN104469122A (en) | Image acquisition system | |
| CN104166579A (en) | Hardware designing method for achieving BIOS refreshing through BMC under shutdown state | |
| CN201955704U (en) | Cloud computing service based desktop terminal | |
| WO2018063730A1 (en) | Multi-dimensional optimization of electrical parameters for memory training | |
| CN204256734U (en) | Peripheral interface expanding unit | |
| Cohen et al. | Android Application Development for the Intel Platform | |
| Chang et al. | Private small-cloud computing in connection with Linux thin client | |
| CN204065938U (en) | A kind of energy-saving computer display screen | |
| CN203241856U (en) | Desktop terminal based on cloud computing service | |
| CN204679943U (en) | A kind of outer cooling mechanism for computer CPU | |
| CN203759590U (en) | Remote monitoring and operating expansion card of Feiteng platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
|
| WD01 | Invention patent application deemed withdrawn after publication |