Hardware Design and Implementation of the Image Aided Testing System Based on PCI Bus
|School||Harbin Engineering University|
|Course||Communication and Information System|
|Keywords||Image aided testing DSP PCI bus Driver Model|
Image aided testing technology with advances in electronic technology, image processing technology and computer technology has been developing rapidly, and is widely used in space technology, remote sensing, medical diagnostics, industrial production in many areas of the national economy. The image of the thesis aided testing system images auxiliary test technology is applied to glass products online detection system, the use of image processing methods in the detection of glass bottles to test the vertical deviation. The subject of study for image aided testing technology for glass products and other industrial products has a larger role in promoting online testing. In this paper, first introduced the image aided testing system development, system components, and that the correct image data acquisition, image processing capacity and data transfer speed is a key technical point image aided testing system. Analysis of the status of the development of high-speed digital signal processor and PCI bus, in this design, the production of TI's DSP chip to complete real-time digital image processing using the PCI bus interface to solve the high-speed data transmission. Secondly, the design and commissioning of the complete system hardware circuit. Given the overall design of the system hardware circuit. Video A / D SAA7111A to complete the design of the video signal acquisition module; digital image processing module hardware circuit design using TMS320VC5509A DSP chip; choice of the completion of the PCI bus interface chip PCI9054 PCI bus interface circuit development; designed by two high-capacity memory a ping-pong storage structure, to solve the large amount of video data buffer. Build a the system video data acquisition, real-time image processing and high-speed data transmission hardware platform. Finally, for the completion of the hardware circuit function of each module of the software design. Including VHDL logic design in FPGA and DSP in software design. Windows XP DDK VisualC 6.0 environment PCI driver development, to achieve a device to create, start, stop, delete, and data read and write operations functions. And a test application written in Visual C 6.0 environment, video data acquisition system, the transfer function is verified to achieve high-speed data transmission. The test results prove this thesis, the design of the image aided testing system hardware circuit is stable and reliable operation of the PCI device driver development, image processing and data transfer speeds are up to the design requirements.