Remote image acquisition device

Abstract

The invention discloses a remote image acquisition device, which is characterized in that an image is acquired through an image acquisition module, then in an image processing module, an FPGA (Field Programmable Gate Array) of a ZYNQ chip is used for mainly completing system control, data storage, data transmission and data post-processing, and an ARM (Advanced RISC Machines) processor is used for pre-processing data input by an ADC (Analog to Digital Converter) and outputting the data to a DAC (Digital to Analog Converter); data interaction is carried out between a PS end and a PL end through an AXI bus, an AXI4 bus and an AXI4Lite bus are included, the data bit width of the AXI4 bus is 64 bits, and the AXI4 bus is used for transmitting image data which is large in data size and high in transmission delay requirement; the data bit width of the AXI4Lite bus is 32 bits, and the AXI4Lite bus is used for controlling data transmission.

Description

technical field [0001] The invention belongs to the technical field of image acquisition, and more particularly, relates to a remote image acquisition device. Background technique [0002] Image acquisition and storage equipment has been widely used in industrial production, medical and health care, aerospace and other fields. It is of great significance to improve image data processing speed and reduce image transmission delay for image acquisition terminal equipment. In specific scenarios, such as remote surgery, space probes, UAV power inspection, etc., there are high requirements for the real-time and stability of remote image transmission, and a large number of images are required in the process of image acquisition, transmission and processing. time. For example, the 8-bit digital image data size of 1728*625 converted by the analog-to-digital converter is 1.03MB. When the sensor has high frame rate and continuous image acquisition, it needs to have a high transmission...

AI Technical Summary

Problems solved by technology

Traditional DSP or ARM processors have excellent control capabilities, but the sampling rate is low, instructions are executed serially, and the system uses floating points, so it is difficult to directly process image data with large data volume, high pixel correlation, and wide frequency band

[0003] At present, the characteristics of FPGA devices such as concurrent data processing, pipeline technology, processing while receiving, and high-speed interfaces are very suitable for the needs of image data transmission and processing, but they are insufficient in peripheral control capabilities.

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