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Image data transmission controller for gigabit network interface

A technology of image data and controller, applied in the field of medical devices

Active Publication Date: 2014-05-07
NANJING PERLOVE RADIAL VIDEO EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the image data transmission used in medical equipment in the market is mainly performed by a single-chip microcomputer or a chip with an operating system, and the program loaded on it is responsible for image extraction and transmission, but the controller in this design is based on FPGA Based on the chip, it is realized by hardware at a faster rate. There is no similar design in China

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  • Image data transmission controller for gigabit network interface
  • Image data transmission controller for gigabit network interface

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Embodiment Construction

[0006] Design three modules in FPGA, namely kmnet_ctrl(1) module, fifo_ctrl(2) module, fifo(3) module. Its functions are:

[0007] Kmnet_ctrl(1): Used to generate image feature signals, including frame synchronization (frame), line synchronization (1ine) and clock (pix) signals, the values ​​of these three signals can be freely customized according to the required image size.

[0008] fifo_ctrl(2): This is the read and write signal controller of fifo, which is used to generate read and write signals of fifo and read signals to the upper-level memory SDRAM.

[0009] fifo(3): This is a first-in-first-out memory array, which is generated by FPGA development software. Its function is to take out the data in the image data memory such as SDRAM and store it in its own memory for temporary storage, waiting for the arrival of the data transmission signal Then there is a Gigabit Ethernet port to send out.

[0010] figure 1 is the structure diagram of these three modules.

[0011] T...

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Abstract

The invention discloses an image data transmission controller for a gigabit network interface, belonging to the technical field of medical devices. The image data transmission controller is composed of an image feature generating module suitable for gigabit network transmission and a first in first out controller module, and a transmission system is composed of two controller modules and a first in first out module. The image data transmission controller is technically characterized in that the image feature generating module is used for generating frame synchronization, line synchronization and clock signals of an image; the first in first out module is used for caching output data of a former-level storage device and facilitating gigabit network transmission; and a first in first out controller is used for generating a write enable signal of the first in first out module and a read signal of the former-level storage device. The image data transmission controller has the advantage that the first in first out controller is used for judging whether a read or write signal is generated or not through adopting a write full mark and a read full mark, and therefore, good stability and expandability are achieved.

Description

technical field [0001] The invention belongs to the technical field of medical equipment. Background technique [0002] This design is used in the multi-lens digital X-ray imaging system, that is, the DR system, and there is no similar product in China. The detailed background technology is as follows: In the DR system, the collected image data is read from the memory and sent to the PC through the Gigabit network to facilitate the processing of the upper layer software and the display of X-ray films, which is impossible in image transmission. missing part. At present, the image data transmission used in medical equipment in the market is mainly performed by a single-chip microcomputer or a chip with an operating system, and the program loaded on it is responsible for image extraction and transmission, but the controller in this design is based on FPGA Based on the chip, it is realized through hardware at a faster rate. There is no similar design in China. Invention cont...

Claims

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Application Information

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IPC IPC(8): G05B19/04
Inventor 李劲生刘晓宇
Owner NANJING PERLOVE RADIAL VIDEO EQUIP