中圖分類號： TP274 文獻標識碼： A DOI：10.16157/j.issn.0258-7998.201134 中文引用格式： 甄國涌，曹飛，陳建軍，等. 基于Hi3516D的低功耗圖像采集系統的設計[J].電子技術應用，2021，47(7)：102-105. 英文引用格式： Zhen Guoyong，Cao Fei，Chen Jianjun，et al. Design of low power image acquisition system based on Hi3516D[J]. Application of Electronic Technique，2021，47(7)：102-105.
Design of low power image acquisition system based on Hi3516D
Zhen Guoyong，Cao Fei，Chen Jianjun，Jia Xingzhong
Science and Technology on Electronic Test and Measurement Laboratory，North University of China，Taiyuan 030051，China
Abstract： Based on the analysis of the shortage of power consumption of the increasingly miniaturized and integrated space image equipment, this paper designs an interface scheme based on the domestic video processing chip Hi3516D. So that the equipment can use this interface to realize the function of low-power image acquisition and transmission. The selection of low-power devices, power consumption hardware adaptation, dynamic voltage regulation hardware circuit and data transceiver flow are analyzed in detail; the calculation of dynamic voltage regulation hardware circuit parameters, the software design flow of low-power module and the information configuration of uboot register and kernel module are given; the image quality and power consumption under different resolutions are tested. After design analysis and test verification, when the interface works within 3 Mb/s bit rate, the power consumption of the whole machine is less than 2.5 W, and the power consumption is reduced by 8%～16%, the image quality PSNR is better than 36 dB, and the interface performance meets the design requirements.
Key words : Hi3516D；AR0230CS；MP2122；adaptive voltage scaling(AVS)；image acquisition