Infrared Image Acquisition and Transmission System Based on Ethernet and ZYNQ

To address the drawbacks associated with traditional CameraLink image acquisition cards, such as inconvenient installation, high costs, and limitations in long-distance transmission, in this study, we design an infrared image acquisition and transmission system based on the ZYNQ platform and Ethernet. The designed system enables more flexible, cost-effective, and long-distance real-time infrared video acquisition and transmission. The infrared image data, captured by the infrared detector, are converted into CameraLink video data using the infrared imaging circuitry. The CameraLink video data are then subjected to serial-to-parallel conversion via an adapter board. This step is followed by acquisition and user datagram protocol (UDP) network transmission of the CameraLink infrared video through the programmable logic (PL) and processing system (PS) components of the AX7015 development platform equipped with a ZYNQ-7000 series chip. Finally, a host computer program, designed in C++ within the QT software environment on a Windows operating system, is used to display and store the infrared video. The established infrared image acquisition and transmission system allows for image acquisition and transmission at a resolution of 1600×1200 pixels, with a pixel depth of 24 bits and frame rate of 16 frames per second on the host computer. The ZYNQ-based Ethernet infrared image acquisition and transmission system has significant potential for real-time acquisition of infrared CameraLink videos, long-distance transmission, and subsequent infrared image processing.