Camera image transmission device based PCI-E (Peripheral Component Interconnected Express) interface and transmission control method thereof

A technology of PCI-E and transmission device, which is applied in the field of camera image transmission device and its transmission control, and can solve the problem that the transmission rate cannot meet the requirements of image data transmission and test requirements, etc.

Active Publication Date: 2014-04-23
KUNSHAN Q TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the connection between the camera image transmission device and the host computer software is based on the USB2.0 interface, and the transmission rate based on the USB2.0 interface can no longer meet the requirements of image data transmission and test requirements.

Method used

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  • Camera image transmission device based PCI-E (Peripheral Component Interconnected Express) interface and transmission control method thereof

Examples

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Embodiment Construction

[0031] Such as figure 1 As shown, a camera image transmission device based on the PCI-E interface includes a first main board and a second main board, the first main board is connected with the camera to be tested through the camera parallel interface, and the first main board is provided with The first FPGA, memory and level conversion circuit of the first programming configuration chip, the first programming configuration chip is used to store the internal logic circuit data of the first FPGA; the memory is under the control of the first FPGA , to store the image data transmitted by the camera to be tested; the level conversion circuit is used to convert the data level between the working level of the camera to be tested and the first FPGA working level;

[0032] Described second main board is connected with the host computer that test software is equipped with through PCI-E interface; Described second main board is provided with clock module, the second FPGA with the second...

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Abstract

The invention discloses a camera image transmission device based on a PCI-E (Peripheral Component Interconnected Express) interface. The camera image transmission device comprises a first mainboard and a second mainboard, wherein the first mainboard is connected with a to-be-tested camera by virtue of a camera parallel interface and is provided with a first FPGA (Field Programmable Gate Array) with a first programming configuration chip, a storage and a level conversion circuit; the second mainboard is connected with a computer host provided with testing software by virtue of the PCI-E interface; the second mainboard is provided with a clock module, a second FPGA provided with a second programming configuration chip and a PCI-E bridging chip provided with a local configuration chip; the PCI-E bridging chip exchanges data with the computer host by virtue of a PCI-E transport protocol and exchanges data with the second FPGA by virtue of a local bus transport protocol; the second FPGA on the second mainboard is connected with the first FPGA on the first main board by virtue of an LVDS (Low-Voltage Differential Signaling) interface. The camera image transmission device disclosed by the invention can be used for realizing image data transmission based on the PCI-E interface, greatly improving the test rate of the camera with high pixels and improving the production efficiency.

Description

technical field [0001] The invention relates to a camera image transmission device for connecting test software of a host computer and a camera to be tested to transmit image data, in particular to a camera image transmission device based on a PCI-E interface and a transmission control method thereof. Background technique [0002] With the advancement of science and technology, the pixels of digital cameras are getting higher and higher, and have been upgraded to tens of millions of pixels, which requires higher transmission rates of image data in production and testing. At present, the camera image transmission device is used to connect the camera to be tested and the PC test software, and the PC test software starts and controls the work of the camera through the camera image transmission device; the camera image transmission device obtains the configuration information of the camera from the PC test software, and The image data information of the camera is transmitted to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/00H04N5/232
Inventor 张银凤钟岳良许克亮林浩
Owner KUNSHAN Q TECH CO LTD
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