| 摘要: |
| 本文讨论了条形码中距离动态识别技术中扫描景深与扫描光束波长和条宽等要素之间的关系，提出了改善条形码读取距离的３种方法。为扩大条形码在工业过程控制、企业管理等领域的应用范围提供了理论依据。 |
| 关键词: 条形码 光电扫描器 模式识别 商标 |
| DOI：10.3969/j.issn.1001-893X. |
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| 基金项目: |
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| The Research of Identification Technology of Moving Bar Code in Middle Distance |
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| Abstract: |
| This paper presents a relation between scanning depth of field,the wavelength of scanning light beam and the width of bar code. It also presents three methods of improving the performance for reading bar code in distance. All these methods provide theory basis for extending application fields of bar codein the industry procedure control and the management of enterprise. |
| Key words: Bar Code,Photoelectricity Scaner,Scanning Depth of Field,Width of Bar Code,Scan Distance., |
