Based on the information redundancy technology, an alternative method to guarantee the integrity of bar code data is given.

基于信息冗余技术，提出了一种保证条形码数据可靠性的方法。

youdao

By putting a bar code data field in a label or envelope publication, you indicate where you want information from the bar code column to appear in the printed copies.

通过将条码数据域放在标签或信封出版物中，您可以指定希望条码列中的信息在打印出的副本上显示的位置。

youdao

It is also tricky to capture the data in the field and stick the bar-code labels on the produce as it is picked and packed.

ECONOMIST: Tech.view

But the black matrix bar code symbols have become a harbor for malicious code writers who devise ways to steal personal data.

FORBES: Is The iPhone Safer Than Google's Android?