基于MCS-51的脱机扫描仪控制器

MCS-51 Based Off-computer Scanner Controller

本文提出一种基于MCS－51的能脱机使用并控制多种手持式扫描仪的控制器的设计方法。该电路适用于各种常见的100-400DPI的手持式扫描仪，可完成对扫描仪的各种扫描控制，如30秒关机、拖动速率的判断、分辨率及灰度判断等，并且用RS232C与PC机进行通讯，完成对扫描图象数据的进一步显示、分析和处理，便于携带，便于进行现场的图象文字扫描处理。

This paper presents a design method of MCS-51 based of f-computer scanner controller for various portable scanners. It is applicable for various common portable scanners of 100 to 400 DPI and can implement different scanning controls such as 30-second-over shutdown and determination of pulling speed, resolution and gray scales. It can communicate with PC through RS-232C and fulfill the further display, analysis and handling of scanning image. It is easy to carry and can deal with the image on-the-spot.