【国家标准】 库德巴条码

中华人民共和国国家标准

GB/T 12907—2008 代替 GB/T 12907—1991

库德巴条码

Codabar bar code

2008-07-16 发布 2009-01-01 实施

中华人民共和国国家质量监督检验检疫总局
中国国家标准化管理委员会发  布

目 次

• 前言 ······························································································ I
• 1 范围 ································································································ 1
• 2 规范性引用文件 ················································································· 1
• 3 术语和定义 ························································································ 1
• 4 要求 ·································································································· 1
  • 4.1 码制特征 ······················································································ 1
  • 4.2 符号结构 ······················································································ 1
  • 4.3 符号长度 ······················································································ 3
  • 4.4 符号高度 ······················································································ 4
  • 4.5 校验符 ························································································ 4
  • 4.6 数据传输 ······················································································ 4
  • 4.7 质量检验 ······················································································ 4
• 5 参考译码算法 ······················································································ 6
• 附录 A（资料性附录） 供人识别字符 ························································· 7
• 附录 B（资料性附录） 非强制性特性 ·························································· 10
• 附录 C（资料性附录） 外观检查及尺寸允许偏差 ·········································· 11
• 附录 D（资料性附录） 应用系统应考虑的因素 ·············································· 12
• 附录 E（规范性附录） 库德巴条码可译码度计算 ··········································· 13

前 言

本标准是参照 ANSI/AIM-BC3-2000《库德巴条码码制规范》对 GB/T 12907—1991《库德巴条码》进行了修订。

本标准代替 GB/T 12907——1991。

本标准与 GB/T 12907—1991 相比主要变化如下：

• 用只有两种单元宽度的库德巴条码符号(原称库德巴码变体)替代具有固定字符宽度的传统库德巴条码。
• 条码符号质量评估的方法上用 GB/T 14258 中的条码扫描反射率曲线分析质量分级替代传统检测。

具体章节和内容变化如下：

• 原标准第 1 章的适用范围修改为“本标准适用于库德巴条码的编码、生成和自动识别。”
• 增加了“术语和定义”作为第 3 章。
• 对原标准中的第 3 章“结构”和第 4 章“技术要求”进行了重新编写，为现在标准中第 4 章“要求”，并增加了数据传输的内容。
• 删除了原标准中的第 5 章“原版胶片技术指标”和第 6 章“质量保证”，增加第 5 章“参考译码算法”，给出了库德巴条码译码的算法与步骤。
• 删除了原标准中的附录 A “库德巴条码的变体”，增加了附录 A“供人识别字符”。
• 增加了附录 B“非强制性特性”，介绍了传统库德巴条码的高密度特性和参数，ABC 库德巴条码的数据连接方法，提供了应用系统常采用的两种校验符计算方法。
• 增加了附录 C“外观检查及尺寸允许偏差”，给出了印刷时条码尺寸允差计算公式和目测检测方法。
• 增加了附录 D“应用系统应考虑的因素”，介绍了设计、设备选择、使用环境等方面应注意的问题。
• 增加了附录 E“库德巴条码可译码度计算”，给出了库德巴条码可译码度计算公式和示例。

本标准的附录 E 为规范性附录，附录 A、附录 B、附录 C、附录 D 为资料性附录。

本标准由全国物流信息管理标准化技术委员会提出并归口。

本标准起草单位：中国物品编码中心负责起草，湖北省标准化研究院参加起草。

本标准主要起草人：赵辰、吴娟、熊立勇、杨健明、鄢若锟。

本标准于 1991 年首次发布，本次为第一次修订。