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RFID vs RF

Former Member
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Dear All,

I am very new to RFID Technology. My company is thinking to implement RFID .

As i am novoice to RFID , Please help me to understand few concepts.

1. When we are talking about the business process , lets consider we have RF guns in our business line - now when we are implementing the RFID what all changes?

2. Do we need to change the complete business process to implement the RFID against RF guns?

Please help me to understand.

Thanks,

lakshmi

Accepted Solutions (1)

Accepted Solutions (1)

ajit_padhy
Explorer
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Quick Guide Radio Frequency Identification

What is RFID?

RFID stands for Radio Frequency Identification. Today, RFID Tags are already used for a variety for dedicated purposes, such as theft protection in the form of plastic tags attached to clothes or fake bar code labels which are in effect RFID tags to prevent theft. Other common applications include access control as well tracking and tracing of goods along a supply network.

An RFID tag consists of four main components:

1. the Integrated Circuit (IC)

2. the Antenna

3. the connection between the IC and the antenna, and

4. the substrate on which the antenna resides

In supply chain applications, tags themselves are usually attached u2013 typically as part of the manufacturing process - to individual items, packages, pallets or containers, to replace bar code systems. We can distinguish tags alongside different criteria. Active tags have their own power supply and can actively send a signal to a reader, even over larger distances of up to 100 meters. Passive tags do not have their own power supply, but they u201Crespondu201D to the electro magnetic waves send out by a reader. Some tags are writeable tags, that means you can store information on the tag itself as it moves through the supply network, whilst other are read-only.

What is the Auto-ID Center?

The Auto-ID Center has started off as a research project at the MIT with the aim of developing low cost tags and technology to create a world of ubiquitous computing where all physical objects become smart items. The Auto-ID Center is backed by various companies such as Procter & Gamble, Unilever, Kraft, Coca Cola, Wal Mart, Department of Defence to name a few.

The Auto-ID Center's vision is to revolutionize the way we make, buy, and sell products by merging bits (information in computer systems) and atoms (physical things) together for optimal mutual communication. Everything will be connected in a dynamic, automated supply chain that joins businesses and consumers together to benefit global commerce and the environment.

What is the EPC / ONS / .PLM?

The Electronic Product Code (ePC) was conceived to identify all physical objects through a 96-bit code providing a unique ID to individual products instead of groups of products like the Uniform Product Code (UPC) and its variants EAN and JAN. These include not only retail products, but also containers, packages and shipments, as well as more general physical systems, assemblies and components. The ePC is a short, simple and extensible code designed primarily for efficient referencing to networked information. The tags are read through RF readers (hardware) located in plants, warehouses, trucks, stores, and potentially, homes. The code itself (and therefore the RFID tag) contains very little information, but essentially serves as a reference to networked information.

This referencing to networked information is achieved through the so-called Object Name Service (ONS) and the Physical Markup Language (.pml). ONS is used to locate a specific URL (Uniform Resource Locator), in essence a web or server address, where information about the object can be found. The information is returned as PML, based on the Extensible Markup Language (XML) to describe unique physical objects, allowing applications to share and track information about them.

This approach has several advantages related to the cost of the tag: on the one hand, this limits the memory on the chip. Further to that the requirement on the tag is limited to a read-only tag without limiting the system. By using the tag only as the pointer to information stored in reference to the object, it actually allows for this information and knowledge about the physical object to be up-dated as the tags moves through the system and enhances the amount of information that can be stored in reference to the object.

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