Rfid Based Attendance System

In its basic form, a typical RFID system has two major components, a reader and tags, as shown in Figure 3.1. These tags are made from a tiny chip, also called an integrated circuit (IC), that is connected to an antenna that can be built into many different kinds of tags including apparel hang tags, labels, and security tags, as well as a wide variety of industrial asset tags. The tag chip contains the product's electronic product code (EPC) and other variable information so that it can be read and tracked by RFID readers anywhere(Impinj 2015).

The RFID system mainly includes three parts: reader, antenna, and RFID tag, as shown. Because of the uniqueness of the RFID tag, the reader can locate and

Regardless of the frequency, method of communication, or the power supply, the goal of any RFID system is to enable specific data to be transmitted between a portable device and the tag, and then be processed and used accordingly. RFID systems are used for objects which get lost, stolen often, underutilized, or difficult to locate in a timely manner.

The RFID is considered a significant improvement over the conventional barcode, which needs to be read by scanners in "line-of-sight" fashion and can be stripped away if the paper product labels get ripped or damaged. RFID can also facilitate inter-organizational E-commerce initiatives such as continuous replenishment or vendor-managed inventories (Smaros and Holmstrom, 2000).

First of all, what are RFID chips, and what are they capable of? In more detail RFID stands for Radio Frequency IDentification, a technology that uses tiny computer chips smaller than a grain of sand to track items at

Another significance of this study is to prove the transmission range of RFID when integrated into other devices and how useful the technology is. This study will also lead to future innovation that will use RFID technology in it most feasible aspects to aid people’s needs.

Radio wave technology has been used since the Second World War but the first application of modern RFID technology came in 1983 when Charles A. Walton received the first patent for his ‘Portable radio frequency emitting identifier’ (US Patent Office, 1983). Since Walton’s patent, modern RFID technology has evolved at a startling rate with “approximately 1500 RFID patents issued between 1997 and 2010” (Mehrjerdi, 2010). The impact RFID has had on global commerce has been wide-spread. Many major industries have found ways to implement the technology into their business practices. Examples include but are not limited to: manufacturing, logistics and inventory control, national defense and commercial farming (FDA, 2015).

RFID technology is not only used at gas stations, restaurants, and department but also at

RFID, or radio frequency identification, is the new system that is replacing the use of barcodes. RFID tags allow users to more quickly obtain information from the object that the RFID tag

For more information on how RFID work, please refer to Cytron’s DIY project PR8 at www.cytron.co.my

The information for the RFID system is generated when an item leaves the store shelves and is purchased and paid for at the counter. Once the payment is made the RFID system generates the system and sends it to the host system and to some of the other system at the enterprise levels that would require the information to take decisions and to correlate accounts and inventory details. The full details of the transaction data is read by the readers and transferred to the host system which also show the ways it was sold the way the payment was made and at what time the sales was concluded.

With a strong team of highly experienced and dedicated engineers, GAO RFID is able to quickly craft a solution according to a customer 's unique requirements. From special frequency modulation, to customized converting and inlay designs, as well as for complete new system designs, GAO RFID is able to provide solutions that offer value, ingenuity, quality and customer satisfaction. The company 's projects have ranged from specialty pilots in giant parking complexes to national rollouts of customized modulation readers.

RFID has been used as an eventual successor to the barcode for tracking an individual unit of goods. RFID does not require direct line of sight to read a tag, and information on the tag is updatable. An RFID solution consists of four parts: the tag, reader, communication network and RFID software. The tag consists of a computer chip and an antenna for wireless communication with the handheld or fixed-position RFID reader, and the communication network connects the readers to transmit inventory information to the enterprise information system. The RFID software manages the collection, synchronization and communication of the data with warehouse management, ERP and supply-chain planning systems and

In a typical RFID system, the tag and the reader communicate information between one another via radio waves. When a tagged object enters the readability zone of a reader, the reader signals the tag to transmit its stored data. Once the data on the tag are received by the reader, the information is relayed back to the computer via a network interface. The computer can then use that information for a variety of purposes. For instance, the computer could use the data to simply inventory the object in a

The Mifare RC522 module, which is based on an RFID system, has two main functions: it can read the data that the RFID tag transmits as well as write data onto the tag. The Radio Frequency Identification system consists of a tag, a reader, and an antenna, and is based on communication through electromagnetic fields. The tags, which contain an embedded copper coil and chip can be of two types, active or passive. Passive