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由于条码刷卡钟的广泛应用,条码用于考勤,人们并不陌生。本文将介绍集光电技术与微机处理技术为一体的条码解码原理,以供从事条码研究科技人员参考。 应用条码扫描技术来搜第各种考勤、标签等资料,使复杂的数据资料输入变为简单容易。完成条码扫描识别任务,主要是利用扫描器和单片微机解码技术。 条码是一种黑白相间、宽窄不同的一组有规律排列的条形图案。利用扫描器的电子线路转换为一串与条码宽窄相应的脉冲信号。通过单片微机分析识别处理,转换成为人们能识别的ASCⅡ码。
Due to the widespread use of bar code swipe clock, bar code for attendance, people are no stranger to. This article will introduce the optoelectronic technology and computer processing technology as one of the bar code decoding principle for bar code research scientists reference. The application of bar code scanning technology to search a variety of attendance, labeling and other data, the complex data input into simple and easy. Complete bar code scanning identification tasks, mainly using the scanner and single-chip microcomputer decoding technology. Bar code is a black and white, different width and a group of regularly arranged bar pattern. Using the scanner’s electronic circuit is converted to a string of pulse width and width corresponding to the pulse signal. Through single-chip microcomputer analysis and recognition processing, converted into people can recognize ASC Ⅱ code.