Low-cost image data collection transmission system free of external storage and based on field programmable gate array (FPGA)

Abstract

The invention discloses a low-cost image data collection transmission system free of an external storage and based on a field programmable gate array (FPGA). The system comprises a channel selection module, an analog-digital (AD) conversion module, an FPGA control module, a communication module and an adjustable configuration module which are sequentially connected. The FPGA control module is connected with the channel selection module and the adjustable configuration module and conducts data interaction with an upper computer through the communication module. The system is simple in structure, low in device requirement, low in cost and capable of being widely applied to multi-channel analog quantity collection occasions with low input signal frequency and large channel number and sensitive to cost. The system is especially suitable for image sensors with low image resolution and image frame rate and low in cost for image collection.

Description

technical field [0001] The invention relates to the technical field of image data acquisition, transmission and processing, in particular to an FPGA-based low-cost image data acquisition and transmission system without external memory. Background technique [0002] Multi-channel analog quantity acquisition and transmission are common in environmental monitoring, industrial production, and scientific research. The measured analog quantities such as image signals, temperature, humidity, and pressure often change slowly, but there are many measured physical quantities. The commonly used scheme of using DSP or MCU to control ADC for data acquisition has the following disadvantages: [0003] 1. DSP and MCU are often interrupted by sudden high-priority interrupts during the acquisition process, resulting in inconstant scanning and acquisition cycles for the measured object; [0004] 2. Limited by the instruction cycle and program complexity, the upload speed of collected data is ...

AI Technical Summary

Problems solved by technology

[0003] 1. DSP and MCU are often interrupted by sudden high-priority interrupts during the acquisition process, resulting in inconstant scanning and acquisition cycles for the measured object;

[0004] 2. Limited by the instruction cycle and program complexity, the upload speed of collected data is slow;

[0005] 3. When there are many physical quantities to be measured, such as by adding ADC channels, the circuit is often complicated and the cost is high

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