Embedded parallel multi-channel digital image acquisition system based on GigE interface

A digital image and acquisition system technology, applied in the field of digital image processing system, embedded parallel multi-channel digital image acquisition system, can solve problems such as line clutter, system acquisition bottleneck, affecting real-time data operation, etc.

Inactive Publication Date: 2014-03-19
CENT SOUTH UNIV
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the PC operates serially on instructions and data, the image can only be processed one by one, resulting in a decrease in image processing speed, which becomes the bottleneck of the entire system acquisition, which in turn affects the real-time performance of subsequent data operations
In addition, with the increase in the number of image acquisition and processing channels, the bottleneck of the processing power of the PC should become more promin...

Method used

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  • Embedded parallel multi-channel digital image acquisition system based on GigE interface
  • Embedded parallel multi-channel digital image acquisition system based on GigE interface
  • Embedded parallel multi-channel digital image acquisition system based on GigE interface

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Embodiment Construction

[0037] The present invention comprises industrial local Gigabit Ethernet network, at least one camera based on GigE interface, at least one computer and at least one digital image acquisition embedded device based on GigE interface; wherein the camera, computer and image acquisition equipment are connected to the same In a local area network, mutual communication is realized through Ethernet; the total number of cameras, computers, and embedded acquisition devices in the local area network can reach up to 255;

[0038] The camera transmits the image data to the image acquisition embedded device in the form of GigE interface data packets through the network twisted pair;

[0039]Each acquisition embedded device includes Gigabit Ethernet physical layer circuit, FPGA core circuit, DSP core circuit, SDRAM, Flash, FIFO; Gigabit Ethernet physical layer circuit includes interconnected general RJ45 interface and Gigabit physical layer chip ; The FPGA core circuit is composed of an FPG...

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Abstract

The invention discloses an embedded parallel multi-channel digital image acquisition system based on a GigE interface. The embedded parallel multi-channel digital image acquisition system comprises an industrial local area gigabit Ethernet, a camera based on a GigE interface, an industrial computer, and a digital image acquisition embedded device based on a GigE interface. The digital image acquisition embedded device based on a GigE interface is the core device of the system. According to the invention, embedded image multi-channel simultaneous acquisition based on a GigE interface can be realized, and advantages, such as high transmission rate, low image transmission distortion rate, convenient networking, convenient installation, convenient maintenance, etc., can be realized. The digital image acquisition embedded device based on a GigE interface is designed for specially acquiring GigE camera image data in a local area network. Embedded systems developed based on the invention can be widely applied in industrial production field monitoring based on machine vision.

Description

technical field [0001] The invention relates to a digital image acquisition system, in particular to an embedded parallel multi-channel digital image acquisition system based on a GigE interface, belonging to a digital image processing system. Background technique [0002] As a common means of framing, machine vision has been widely used in many fields. The image acquisition device is the data source in the entire image processing system and is an essential part. [0003] At present, most of the image acquisition and processing devices used for monitoring and control are based on PC and image acquisition cards. In this mode, the image acquisition card collects images from industrial cameras, and the PC processes the images and obtains the results. According to the processing results, the PC can control and operate related equipment through other interface equipment. If you want to perform multi-channel image detection, you need to expand the image acquisition card on the ...

Claims

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Application Information

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IPC IPC(8): H04N7/18
Inventor 李勇刚王为徐德刚胡俊朱军阳春华桂卫华谢永芳朱红求
Owner CENT SOUTH UNIV
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