Nature

Capture

Date posted:09/08/2018

GS1 Identification Keys we discussed in the last blog post are wrapped up or encoded in GS1 Barcodes or EPC/RFID tags. These are otherwise referred to as GS1 Data Carriers and represent the GS1 Data Capture Standards. Barcodes are symbols (images) that can be scanned electronically using laser or camera-based systems. They are used to encode information such as product numbers, serial numbers and batch numbers. Barcodes play a key role in supply chains, enabling parties like retailers, manufacturers, transport providers and hospitals to automatically identify and track products as they move through the supply chain.

GS1 BARCODES

Barcodes are symbols that can be scanned electronically using laser or camera-based systems. They are used to encode information such as product numbers, serial numbers and batch numbers. Barcodes play a key role in supply chains, enabling parties like retailers, manufacturers, transport providers and hospitals to automatically identify and track products as they move through the supply chain. GS1 manages several types of barcodes. Each is designed for use in a different situation. Let us consider the following:
1. EAN/UPC family: Instantly recognisable 1D barcodes used in retail all over the world.

Types of EAN/UPC barcodes

  • EAN-13
  • UPC-A
  • EAN-8
  • UPC-E

2. DataBar family: Compact 1D barcodes that can hold additional product attributes such as the weight of fresh foods. GS1 DataBar barcodes DataBar barcodes are often used to label fresh foods. These barcodes can hold information like an item's batch number or expiry date, in addition to other attributes used at the point-of-sale such the item weight. DataBar barcodes are often used in retail, and can be read by laser scanners. Types of DataBar barcodes The GS1 DataBar family consists of seven symbols in total: four for use a point-of-sale and three not for use at point of sale. The symbols for use at point-of-sale are listed below:

  • DataBar omnidirectional
  • DataBar Stacked Omnidirectional
  • DataBar Expanded Stacked
  • DataBar Expanded

One-dimensional (1D) barcodes are used exclusively in general distribution and logistics. There are other types of 1D barcodes that are flexible 1D barcodes used to represent ID keys and attributes in a distribution environment such as the following:

3. One-dimensional (1D) barcodes used exclusively in general distribution and logistics GS1-128 and ITF-14 are highly versatile 1D barcodes that enable items to be tracked through global supply chains. The GS1-128 barcode can carry any of the GS1 ID keys, plus information like serial numbers, expiration dates and more. The ITF-14 barcode can only hold the Global Trade Item Number (GTIN) and is suitable for printing on corrugated materials. Types of 1D barcodes:

  • ITF-14
  • GS1-128

4. Two-dimensional (2D) barcodes: Compact, high-capacity 2D symbols suitable for representing all GS1 keys and attributes. Two-dimensional (2D) barcodes Two-dimensional (2D) barcodes look like squares or rectangles that contain many small, individual dots. A single 2D barcode can hold a significant amount of information and may remain legible even when printed at a small size or etched onto a product. 2D barcodes are used in a wide range of industries, from manufacturing and warehousing to logistics and healthcare. Examples are:

  • GS1 DataMatrix
  • GS1 QR Code

EPC/RFID The Electronic Product Code (EPC) is syntax for unique identifiers assigned to physical objects, unit loads, locations, or other identifiable entity playing a role in business operations. EPCs have multiple representations, including binary forms suitable for use on Radio Frequency Identification (RFID) tags, and text forms suitable for data sharing among enterprise information systems. GS1's EPC Tag Data Standard (TDS) specifies the data format of the EPC, and provides encodings for numbering schemes -- incuding the GS1 keys -- within an EPC. When unique EPCs are encoded onto individual RFID tags, radio waves can be used to capture the unique identifiers at extremely high rates and at distances well in excess of 10 metres, without line-of-sight contact. These characteristics of RFID can be leveraged to boost supply chain visibility and increase inventory accuracy. Refer to GS1 Training Department for more details on EPC/RFID Standards


Kunle Oye-igbemo

Solution Manager