Radio Frequency Identification (RFID)

Radio Frequency Identification (RFID) is a technology that uses radio waves to identify and track tags attached to objects. An RFID system consists of two main components: tags and readers. Tags are small devices that contain a chip and an antenna. When a reader is in range of a tag, it sends out a radio wave that activates the tag. The tag then sends back a signal containing its unique identification number. Unlike a bar code, the tag does not necessarily need to be within line of sight of the reader, and may be embedded in the tracked object. It can also be read only or read-write enabling information to be either permanently stored in the tag or it can be read-write where information can be continually updated and over-written on the tag.

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SML announces RFID TotalCare to enable retailers and brand owners to simplify RFID adoption and maximise returns

1 SML announces RFID TotalCare to enable retailers and brand owners to simplify RFID adoption and maximise returns

SML RFID, the full-service RFID solution provider, has announced the launch of its RFID TotalCare offering, an all-in-one systemic package of its item-level RFID tagging and software solutions. This is aimed to better serve retailers by simplifying compliance, adoption, reducing risk and maximising value across a range of retail environments.

SICK shrinks UHF RFID read/writing

2 SICK shrinks UHF RFID read/writing

SICK has launched what it claims to be the smallest industrial UHF RFID read/write device of its kind, the RFU610, creating new opportunities to integrate RFID track and trace capability in automated machines and mobile vehicles in warehousing, materials handling, and logistics environments.

Summer, vacation, lost luggage: How RFID tracking can help with lost bags at the airport

3 Summer, vacation, lost luggage: How RFID tracking can help with lost bags at the airport

Airlines want to use RFID technology to create solutions for lost baggage. The International Air Transport Association (IATA) announced that from 2020, each piece of luggage will be equipped with an RFID tag.

TouchPath launches 'Touch Facility evacuation & verification' system for supply chain users

4 TouchPath launches 'Touch Facility evacuation & verification' system for supply chain users

International supply chain solutions provider TouchPath is launching ‘Touch Facility Evacuation and Verification’, a system that uses Active RFID (radio frequency identification) badge-and-reader technology to record and track personnel entering, leaving and using warehouse and logistics, manufacturing or other supply chain facilities.

Detego introduces ‘Smart Shield’ – its latest development in RFID-based inventory management software

5 Detego introduces ‘Smart Shield’ – its latest development in RFID-based inventory management software

Detego, the business intelligence solutions provider for fashion retailers, has released the latest development for its RFID-based inventory management software with a feature the company calls ‘Smart Shield’.

DENSO introduces SP1 RFID Sled

6 DENSO introduces SP1 RFID Sled

DENSO, part of the Toyota Group and inventor of the QR Code, has launched the new SP1 RFID Scanner.

Smartrac announces comprehensive Green Tag Program, taking a holistic approach

7 Smartrac announces comprehensive Green Tag Program, taking a holistic approach

Smartrac has unveiled its Green Tag Program to the public. In addition to its existing commitment to minimise any possible ecological impact of its manufacturing processes, the RFID and IoT pacesetter has taken on an obligation to manufacture RFID products that live up to a true sustainability promise even under strict Life Cycle Assessment (LCA) scrutiny.

Siemens extends RFID portfolio with compact reader for space-saving uses

8 Siemens extends RFID portfolio with compact reader for space-saving uses

Siemens is extending its range of Simatic RF600 ultra-high frequency (UHF) devices to include a new RFID (Radio Frequency Identification) reader. The Simatic RF615R comes with a particularly compact design (133 x 155 x 45 millimeters), an internal, circularly polarised antenna and an additional external antenna connection.

SATO - Embracing the IoT era in retail

9 SATO - Embracing the IoT era in retail

Retail is rapidly changing, with a huge increase in the use of technology across every element of the process, from concept to consumer. In particular, the increased prevalence of the ‘Internet of Things’ (IoT) in the retail sector means businesses must adapt and invest in technologies to support this new era of network-controlled device management and automation.

Lowe Rental extends RFID system to Asia

10 Lowe Rental extends RFID system to Asia

Supplier of rented fridges, freezers and catering equipment – Lowe Rental – is extending its use of RFID tracking to its Far East and Gulf operations after successfully deploying the technology in Europe.

Radio Frequency Identification (RFID)

Radio frequency identification (RFID) is relatively a new AIDC technology which was first developed in 1980’s.

An RFID system consists of two main components: tags and readers.

  • Tags are small devices that contain a microchip and an antenna. They are attached to the objects that need to be tracked.
  • Readers are devices that emit radio waves and receive signals back from the tags. They are used to read the data stored on the tags.

When a reader sends out a radio wave, it activates the tag. The tag then sends back a signal that contains its unique identification number. The reader can then use this information to track the tag or object. The technology acts as a base in automated data collection, identification and analysis systems worldwide. Radio-frequency identification (RFID) is the wireless non-contact use of radio-frequency electromagnetic fields to transfer data.

Unlike a bar code, the tag does not necessarily need to be within line of sight of the reader, and may be embedded in the tracked object. It can also be read only or read-write enabling information to be either permanently stored in the tag or it can be read-write where information can be continually updated and over-written on the tag.

Benefits of RFID in Retail

Inventory Shrinkage (Shrink) Reduction 
• Ability to track items in real-time between manufacturer and point of sale.
• Real-time notification of any breaches in security for non-payment.
• Reduces shrinkage of stock caused by theft.

Monitor unattended inventory• Automatic item identification on mixed pallets
• "Smart Shelf" systems – designed to provide real time tracking and lovating of tagged items on shelves
• Shipping and Receiving applications

Shelf stocking
• Real-time notification of out-of -stock items
• Improvement of product replenishment
• Improved product forecasting from product stock tracking

Check-out Process
• Reduce labour/time cost of employees
• Reduce time in queue

RFID Smart Labels - extremely flat configured transponder under a conventional print-coded label, which includes chip,antenna and bonding wires as a so-called inlay. The labels—made of paper, fabric or plastic.

Types of RFID Tag

UHF (Ultra High Frequency) Tags, Labels and Cards operate at a frequency of 915 MHz. These types of tags are considered “Passive” –with no on-board power source. Commonly specified by retailers within the supply chain, these tags must comply with the international recognized standard set by EPCglobal.

HF (High Frequency) Tags, Labels and Cards operate at a frequency of 13.56 MHz. These types of tags are also “Passive” with no onboard power source. RFID applications that use HF RFID tags are typically the applications that require read distances of less than three feet. HF tags work better on objects made of metal (RFID Metal Tag) and can work around goods with high water content.

LF (Low Frequency) Tags, Labels and Cards are low-frequency tags (125khz) use less power and are better able to penetrate non-metallic substances. These types of tags are also “Passive” –with no on-board power source. They are ideal for scanning objects with high-water content, such as fruit, but their read range is limited to less than a foot.

RFID applications: RFID can be used in a variety of supply chain applications, including:

  • Inventory tracking: RFID tags can be used to track the movement of products throughout the supply chain, from the factory to the retail store. This can help to improve inventory accuracy and reduce stockouts.
  • Asset tracking: RFID tags can be used to track high-value assets, such as pallets, containers, and vehicles. This can help to prevent theft and loss, and improve the efficiency of asset management.
  • Process optimization: RFID can be used to optimize supply chain processes, such as picking and packing, loading and unloading, and shipping. This can help to reduce costs and improve efficiency.
  • Fraud prevention: RFID can be used to prevent counterfeiting and fraud. For example, RFID tags can be used to track the movement of pharmaceuticals to ensure that they are not diverted or counterfeited.

RFID has a number of advantages over traditional barcoding technology, including:

  • Increased accuracy: RFID tags can be read from a greater distance than bar codes, which can improve inventory accuracy.
  • Real-time tracking: RFID tags can be read in real time, which can help to improve visibility into the supply chain.
  • Enhanced security: RFID tags can be encrypted, which can help to prevent unauthorized access.

However, RFID also has some disadvantages, including:

  • Cost: RFID tags and readers can be more expensive than bar code scanners.
  • Complexity: RFID systems can be more complex to implement than bar code systems.
  • Privacy concerns: Some people have privacy concerns about the use of RFID tags.

Overall, RFID is a powerful technology that can be used to improve the efficiency and visibility of supply chains. However, it is important to weigh the costs and benefits of RFID before implementing a system.

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