Rfid working principle pdf

RFID is a generic term for technologies that use radio frequency waves to identify an object. RFID enables identification of an object from a distance without requiring a line of sight. RFID tags can incorpo- rate additional data such as details of product and manufacturer andcantransmitmeasuredenvironmentalfactorssuchastemper- RFID systems use radio-signals to communicate, but only certain frequency bands are available for license-free use. There is international variation in the frequencies and power levels available for RFID systems. Due to different national regulations, an RFID system produced in one country may not work in another country.7 Four different kinds of The RFID reader is a network-connected device that can be portable or permanently attached. It uses radio waves to transmit signals that activate the tag. Once activated, the tag sends a wave back to the antenna, where it is translated into data. The transponder is in the RFID tag itself. Radio frequency identification (RFID) is a generic term that is used to describe a system that transmits the identity (in the form of a unique serial number) of an object or person wirelessly, using radio waves. It… View via Publisher ijcee.org Save to Library Create Alert Figures and Topics from this paper figure 1 figure 2 figure 4 The active RFID tags come in two main types: these are transponders and beacons. Transponders are similar to the passive RFID tags wherein using the reader is required to transmit data. An information ping in every few seconds is what beacons send out. They have a signal that is readable from hundreds of feet away. RFID technology [4][5] works on the principle of radio frequency transmission- reception. An RFID system is made up of two components: A transponder, which is located on the object to be identified; A detector or reader, which, depending upon the design and the technology used, may be a read-only or a write/read device. Working Principle of RFID : Generally, RFID uses radio waves to perform AIDC function. AIDC stands for Automatic Identification and Data Capture technology which performs object identification and collection and mapping of the data. Rfid ppt 8th sem 1. A Power Point Presentation On RADIO FREQUENCY IDENTIFICATION Presented By :- AMIT RANJAN 2. PRESENTATION OUTLINE • About RFID .. So that it will change our personal and work lives and adorns the conventional management with a new idea and usher for a bright future. RFID IS A SUPPORTING TECHNOLOGY--- NOT A COMPETING !! The global RFID technology market is estimated to reach USD 40.5 billion by 2025 6. 7 Tracking Locating Monitoring Security Resource optimization Motivation. Identification History 8. Earlier Work RFID reader sends radio frequency signals using it's antenna, small coils embedded on the RFID tag pick up the signal from the reader and activate the tag (in passive tags) by powering it. Once the tag is activated, it starts to transmit data back to the reader using the same antenna coils using inductive coupling (backscatter coupling) method. An RFID Reader. A Processor or a Controller: It can be a host computer with a Microprocessor or a microcontroller which receives the reader input and process the data.; 2 Types of RFID Systems: Active RFID system: These are systems where the tag has its own power source like any external power supply unit or a battery. The only constraint being the life time of the power devices. An RFID Reader. A Processor