3 ms·

> By contrast, PulpaTronics' alternative RFID design requires no other material than paper. The company simply uses a laser to mark a circuit onto its surface,

> By contrast, PulpaTronics' alternative RFID design requires no other material than paper. The company simply uses a laser to mark a circuit onto its surface, with the laser settings tuned so as not to cut or burn the paper but to change its chemical composition to make it conductive. Can RFID tags be lased into food and clothing, too? "Laser-Induced Graphene by Multiple Lasing: Toward Electronics on Cloth, Paper, and Food" (2018) https://pubs.acs.org/doi/10.1021/acsnano.7b08539 https://pubs.acs.org/doi/10.1021/acsnano.7b08539

specialist 3y ago
Nicely spotted. I only managed to find more recent papers searching for "conductive carbon-based material". PulpaTronics will be so cool if it works. Even better would be to come up with some kind of combo RFID and barcode. And laser print that tag on the outside. Straddling (or bridging) the RFID and barcode domains is a huge opportunity.
- westurner 3y ago
  FWIU RFID cost has been a major limiting factor in supply chain traceability; pallet-level RFID is almost affordable? > PulpaTronics estimates its tags will reduce carbon dioxide emissions by 70 per cent compared to standard RFID tags while halving the associated price for businesses. From https://news.ycombinator.com/item?id=28691422#28701355 https://news.ycombinator.com/item?id=28691422#28701355 : > There's probably already a good way to bridge between sub-SKU GS1 schema.org/identifier on barcodes and QR codes and with DIDs. For GS1, you must register a ~namespace prefix and then you can use the rest of the available address space within the barcode or QR code IIUC https://schema.org/identifier https://schema.org/identifier rdfs:subPropertyOf^-1 duns, globalLocationNumber, gtin, isbn, orderNumber, productID, serialNumber, sku, taxID GS1: https://en.wikipedia.org/wiki/GS1 https://en.wikipedia.org/wiki/GS1 List of GS1 country codes: https://en.wikipedia.org/wiki/List_of_GS1_country_codes https://en.wikipedia.org/wiki/List_of_GS1_country_codes W3C DID: Decentralized Identifier: https://en.wikipedia.org/wiki/Decentralized_identifier https://en.wikipedia.org/wiki/Decentralized_identifier
  - tecleandor 3y ago
    > FWIU RFID cost has been a major limiting factor in supply chain traceability; pallet-level RFID is almost affordable? But I guess that depends on the type of RFID tag, isn't it? For example, Decathlon already introduces tags with UUIDs with every single product they sell (even the cheapest socks), and they use them to inventory tracking and to scan your cart when you buy in store. https://www.cisper.nl/en/case-studies/rfid-case-study-decathlon-uses-tageos-rfid-labels-to-identify-millions-of-items-worldwide https://www.cisper.nl/en/case-studies/rfid-case-study-decath... Of course, although business-wise practical, that can pose a security issue... You can track peoples clothes on the wild! https://mastodon.social/@russss/102674489508219187 https://mastodon.social/@russss/102674489508219187
    - westurner 3y ago
      Is it the link between the Invoice and the ~serialNumber of the scannable-at-a-distance Product? Most barcodes today only encode a ~sku (and not a serial number). Minimally, to lookup additional product information from just an sku (similar to a shorturl app), consumers would need an API to retrieve and/or lookup from a conjunction of per-Organization named graph documents linking schema:Things' ~schema:identifiers with the RDF subject URIs of NutritionInformation records. - P: schema:nutrition - d: MenuItem,Recipe - r: NutritionInformation - C: NutritionInformation https://schema.org/NutritionInformation https://schema.org/NutritionInformation C: https://schema.org/Offer https://schema.org/Offer supersedes the GoodRelations vocabulary for Products and Services: > For GTIN-related fields, see Check Digit calculator and validation guide from GS1.
      - tecleandor 3y ago
        I just checked one of the electronic invoices I had in my email, and for every line (be it a protein bar or a jacket) it includes an "RFID" field with what I guess it's the serial number contained in the tag. I don't have a reader for that frequency so I can't really confirm. Edit: An example for some chocolate cereal bars: Barrita cereales Chocolate x10 Talla única Ref: 2610768 RFID: 003869592404 That'd be for this product: https://www.decathlon.es/es/p/barrita-de-cereales-clak-con-chocolate-ecosize-10-x-21-g/_/R-p-304214?mc=8518622 https://www.decathlon.es/es/p/barrita-de-cereales-clak-con-c...
m463 3y ago
Can RFID tags be lased into food and clothing, too? what about... people? rfid tattoos? maybe new kinds of handstamps to get into events? (also I wonder what degrades the rfid circuits - wear or water?)

specialist 3y ago

Nicely spotted. I only managed to find more recent papers searching for "conductive carbon-based material". PulpaTronics will be so cool if it works. Even better would be to come up with some kind of combo RFID and barcode. And laser print that tag on the outside. Straddling (or bridging) the RFID and barcode domains is a huge opportunity.

westurner 3y ago
FWIU RFID cost has been a major limiting factor in supply chain traceability; pallet-level RFID is almost affordable? > PulpaTronics estimates its tags will reduce carbon dioxide emissions by 70 per cent compared to standard RFID tags while halving the associated price for businesses. From https://news.ycombinator.com/item?id=28691422#28701355 https://news.ycombinator.com/item?id=28691422#28701355 : > There's probably already a good way to bridge between sub-SKU GS1 schema.org/identifier on barcodes and QR codes and with DIDs. For GS1, you must register a ~namespace prefix and then you can use the rest of the available address space within the barcode or QR code IIUC https://schema.org/identifier https://schema.org/identifier rdfs:subPropertyOf^-1 duns, globalLocationNumber, gtin, isbn, orderNumber, productID, serialNumber, sku, taxID GS1: https://en.wikipedia.org/wiki/GS1 https://en.wikipedia.org/wiki/GS1 List of GS1 country codes: https://en.wikipedia.org/wiki/List_of_GS1_country_codes https://en.wikipedia.org/wiki/List_of_GS1_country_codes W3C DID: Decentralized Identifier: https://en.wikipedia.org/wiki/Decentralized_identifier https://en.wikipedia.org/wiki/Decentralized_identifier
- tecleandor 3y ago
  > FWIU RFID cost has been a major limiting factor in supply chain traceability; pallet-level RFID is almost affordable? But I guess that depends on the type of RFID tag, isn't it? For example, Decathlon already introduces tags with UUIDs with every single product they sell (even the cheapest socks), and they use them to inventory tracking and to scan your cart when you buy in store. https://www.cisper.nl/en/case-studies/rfid-case-study-decathlon-uses-tageos-rfid-labels-to-identify-millions-of-items-worldwide https://www.cisper.nl/en/case-studies/rfid-case-study-decath... Of course, although business-wise practical, that can pose a security issue... You can track peoples clothes on the wild! https://mastodon.social/@russss/102674489508219187 https://mastodon.social/@russss/102674489508219187
  - westurner 3y ago
    Is it the link between the Invoice and the ~serialNumber of the scannable-at-a-distance Product? Most barcodes today only encode a ~sku (and not a serial number). Minimally, to lookup additional product information from just an sku (similar to a shorturl app), consumers would need an API to retrieve and/or lookup from a conjunction of per-Organization named graph documents linking schema:Things' ~schema:identifiers with the RDF subject URIs of NutritionInformation records. - P: schema:nutrition - d: MenuItem,Recipe - r: NutritionInformation - C: NutritionInformation https://schema.org/NutritionInformation https://schema.org/NutritionInformation C: https://schema.org/Offer https://schema.org/Offer supersedes the GoodRelations vocabulary for Products and Services: > For GTIN-related fields, see Check Digit calculator and validation guide from GS1.
    - tecleandor 3y ago
      I just checked one of the electronic invoices I had in my email, and for every line (be it a protein bar or a jacket) it includes an "RFID" field with what I guess it's the serial number contained in the tag. I don't have a reader for that frequency so I can't really confirm. Edit: An example for some chocolate cereal bars: Barrita cereales Chocolate x10 Talla única Ref: 2610768 RFID: 003869592404 That'd be for this product: https://www.decathlon.es/es/p/barrita-de-cereales-clak-con-chocolate-ecosize-10-x-21-g/_/R-p-304214?mc=8518622 https://www.decathlon.es/es/p/barrita-de-cereales-clak-con-c...

m463 3y ago

Can RFID tags be lased into food and clothing, too? what about... people? rfid tattoos? maybe new kinds of handstamps to get into events? (also I wonder what degrades the rfid circuits - wear or water?)