tech

Stealth barcodes track individual items during the manufacturing process

2 Comments

Hitachi Power Solutions has developed an item management system, which helps to improve traceability in manufacturing facilities.

This system uses item IDs printed in stealth ink, which is hard to see with the naked eye. The ink is made visible and read using UV light, and each ID is associated with production data. Even in lots with thousands or tens of thousands of items, this system enables every single product to be managed individually.

“Usually, manufacturer’s codes don’t need to be seen by everyone. So, we’ve decided to use stealth codes. A feature of these is, they can be printed anywhere. So, they don’t affect product design," a Hitachi spokesman said.

“The scanning speed is currently 78 meters per minute, but that could be increased to 160 meters per minute. The codes can be read anywhere, but what we want to do is to make it possible to read the codes, and associate them with data during manufacturing, at speeds that have so far been considered impossible on production lines.”

“Until now, products have been managed as lots, so if customers make a complaint, manufacturers have only been able to tell them the results of tests within a lot. But now, each item on a production line can be scanned, and data can be associated with its code, so manufacturers have evidence regarding complaints. For example, items can be given serial numbers, like with consumer electronics. So, if there’s a complaint, the manufacturer can immediately check where the item was made and what the problem was," the spokesman said.

The stealth codes are printed using ink-jet printers from Hitachi IES. This system offers lower costs than labels and RFID tags.

From now on, as well as food items, Hitachi will consider using the system for electronic and automotive components.

“We think this system could be utilized for lots of purposes. For example, you could use these codes to make small electronic components traceable, or to improve the speed of production lines. Stealth codes could also be used to prevent counterfeiting or unauthorized distribution," the spokesman said.

© Akihabara News

©2024 GPlusMedia Inc.

2 Comments
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Trust me I see a major problem with this. What happens when you accidentally wipe a "stealth code" off because you didn't know it was there. If it's printed with an inkjet printer then it can be wiped off while doing routine cleaning especially with electronics and high heat lighting devices. I have partially wiped off, by accident, visible production codes when cleaning items suspected of being touched by oil or dirty fingers. Warranty is voided if the production codes are removed so if you don't know they are there and wipe them off is that your fault for cleaning something that would have failed if you didn't? Pandora's box is being opened once again. Control freaks not having foresight yet again...

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I suppose they forgot to mention "lamination " was a part of the process

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