 I am Dr. Ganapa A. Waliker, works in the Department of Computer Science and Engineering, Valshan Institute of Technology, Sholapur. Today I am going to deliver a lecture on radio frequency identification technology in IOT. As part of learning outcome, at the end of this session, the students will be able to describe the concept of RFID technology for IOT. Before discussing applications, architecture, and components of RFID, so let us begin with the introductory part of RFID system. Radio frequency identification system is a technology that allows to identify objects through radio waves. Usually in IOT system, the objects are working co-ordinately in order to gather, process, and transmit the data to the central system. In order to work co-operatively at each objects, should identify each other. And usually objects or devices in IOT system have identification number, but that identification number should be read by the particular system. And this RFID technology will enables to read particular objects in a system and make other devices need to be identified. The RFID usually connects to the reader, then that reader will connect into the internet. The readers can identify, track, and monitor the objects attached with this particular tags. RFID is often seen as a prerequisite for the IOT. The first use of RFID was in World War II where it is used to locate the enemy location in a war field. RFID is the fast, reliable, and does not require physical sight or contact between reader and the tagged item. Without any physical or without any lighting system, if objects come between that proximity area, so automatically it will be tagged or automatically it will be read by the reader, but it is not happens in the barcode system. In barcode system, in order to trace or in order to track that particular object, it should have a lighting system or it should have a close contact with that particular object. So this is the main difference between RFID and barcode system. In RFID, it is not noticed to the object whether it is being traced or not, but in case of barcode system, the objects can identify, yes, my particular identification being traced by some system. RFID is usually used to monitor, track, and supervise objects in a system. RFID usually means to be aware of the state of the system by repeated observing the particular conditions, especially to detect them and give warning of change. If any changes happens in that particular proximity area or in a particular environmental conditions, automatically that information will monitor by this RFID system. Not only monitor the objects in a system, it also tracks the movement of that particular objects and timely ordered sequence of respective location data to a particular model. It is not only monitor, track the objects in a system, it also supervises the monitoring of the behaviors, activities, or other changing information and usually it is a people or objects. Now we will discuss the RFID in IoT. RFID identifies the objects using tagging and labeling of IoT objects. It adds a tag or label which may be replaced over an object. Usually objects in IoT will have an identification system in the form of label or in the form of a tag. That tag usually contains a particular identification number in a given format. The RFID in IoT consists of a transceiver, data processing system, a middleware, application and service layer. The transceiver usually transmits identification number of an object from the tagging, labeling or to a reader. The reader will read and decode the information, then send it to the processing system. Then processing system will process the identification information, then it will send it to the application and service layer via a middleware. A label usually is in a microchips and used to transmit data when the label is exposed to radio waves. So these radio waves act as a transmission media to transmit the tagging information from the object to the reader. So these are the components of RFID system, the RFID tag, RFID antenna, RFID reader, RFID station. The RFID tag usually exposed to the reader. The reader will read identification information from the RFID tag. Then that information will be processed by the processing system and send it to the RFID station where the user can process and extract the knowledge from that particular information. Now we will discuss how these four components together work in identifying the objects in an IoT setup. So now here there are four components what we discussed. One is RFID tag, RFID antenna, RFID reader and RFID station. And this is a RFID tag usually contains an identification number in a given format usually that is included in the header format. So this is connecting to the reader through this RFID link. The reader will read the information in the header then decode that information. After decoding it identifies a source of that information then it will send to the computer based system or RFID station through RFID antenna. So how? So these four components coordinate each other in order to identify, recognize and transmit the information to the computer system. So this is in detail representation of how the RFID system works. So this is tags or labels attached to the objects and these tags represents identification number of that particular objects. So these readers read the information and once it reads those identification information will transmit in the form of a signal. So then the reader will process that data or recognize the location of these objects then send or transmit to the host. So where the user is working with that particular data via either through wireless or wired communication system. And this is a working of RFID. So transponder from the object will receive the signal in the form of an energy and it will send back an identifying response to a reader. The reader will read those signals that signal usually contains the identification information of that particular tagged objects via antenna. So then it will recognize process that information and then broadcast that particular signal to a computer-based system or host system through antenna. So likewise, so all components are working together in order to identify the particular object. And this is an example of RFID. So how? So RFID is exposed to the signals and this is a tagging system and this is in a logo of RFID technology or system. So these are the applications of RFID system. Usually it is used in product tracking at the toll payment in the transportation system, the passport office, identification system and in libraries, shipping and other applications. So let we will discuss application of RFID through pictorial representation. This is RFID application. It is being used in solar planets, being also used in jewellery tracking, vehicle tracking, schools and colleges, hospitals, IT asset tracking, a library system and retail appliance. So these are the some of the applications is aware RFID being widely used in order to trace, track and monitor the objects. Think and write. So what is the use of RFID in IoT? Pause the video now and answer the question. Usually RFID is used to identify, track and monitor the remote IoT objects with location and time. And these are the references I referred to prepare the PPT. So out of which the two are books, one is the Internet of Things, Key Applications and Protocols by David and Omer. The second book is Internet of Things, Architecture and Design Principles by Raj Gammal and rest all our internet content. So I referred to prepare this particular PPT. Thank you.