针对视频监控中摄像机镜头光圈大小、图像聚焦、图像变焦三项参数的控制问题，介绍了一种基于89C51单片机的镜头控制电路的设计。 该电路以89C51单片机为核心，结构简单，成本低廉，控制可靠，实现了智能监控终端对摄像参数的完全控制。 Abstract: The design of camera lens control circuit based on 89C51 is introduced. This circuit can adjust parameters of camera such as aperture, zoom and focusing. The practice of project shows that this circuit has advantages of structure simple, low cost and high reliability.
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