What is RFID?

Radio-Frequency Identification (RFID) is the use of radio waves to read and capture information stored on a tag attached to an object.  A tag can be read from up to several feet away and does not need to be within direct line-of-sight of the reader to be tracked.

How does a RFID system work?

A RFID system is made up of two parts: a tag or label and a reader. RFID tags or labels are embedded with a transmitter and a receiver. The RFID component on the tags have two parts: a microchip that stores and processes information, and an antenna to receive and transmit a signal. The tag contains the specific serial number for one specific object.

To read the information encoded on a tag, a two-way radio transmitter-receiver called an interrogator or reader emits a signal to the tag using an antenna. The tag responds with the information written in its memory bank. The interrogator will then transmit the read results to an RFID computer program.

There are two types of RFID tags: passive and battery powered.  A passive RFID tag will use the interrogator’s radio wave energy to relay its stored information back to the interrogator.  A batter powered RFID tag is embedded with a small battery that powers the relay of information.

In a retail setting, RFID tags may be attached to articles of clothing. When an inventory associate uses a handheld RFID reader to scan a shelf of jeans, the associate is able to differentiate between two pairs of identical jeans based upon the information stored on the RFID tag.  Each pair will have its own serial number.

With one pass of the handheld RFID reader, the associate can not only find a specific pair, but they can tell how many of each pair are on the shelf and which pairs need to be replenished. The associate can learn all of this information without having to scan each individual item.

What is the RFID Chip?

Radio-frequency identification. Radio-frequency identification (RFID) is the wireless use of electromagnetic fields to transfer data, for the purposes of automatically identifying and tracking tags attached to objects. The tags contain electronically stored information.

What is RFID reader?

An RFID reader is a network connected device (fixed or mobile) with an antenna that sends power as well as data and commands to the tags. The RFID reader acts like an access point for RFID tagged items so that the tags’ data can be made available to business applications.

What is the use of RIFD?

For many applications, such as tracking parts for just-in-time manufacturing, companies could justify the cost of tags—a dollar or more per tag—by the savings an RFID system could generate. And when RFID was used to track assets or reusable containers within a company’s own four walls, the tags could be reused.

Child safety India is the only manufacturer of school attendance management system based on RFID. This automation system is for all the colleges, schools and other educational systems. The best part is that this software and hardware solution is customized and can be made as per your budget and requirement. This system is a Ready-made system which is based on RFID and GPS system. It is known as the best attendance system ever because it has been successfully running since past 8 years. The system is based on the web, and can be operated from anywhere from the world.


  • Movement of students inside the school can be tracked if RFID readers are installed in labs, halls, classrooms etc.
  • RFID student tracking system in buses helps schools track whether a student is getting off at the right stop.
  • The RFID student tracking system generates a message to the parent’s phone informing them that their child has boarded the bus/reached the school.
  • RFID in schools can be used to automate attendance and save time as teachers don’t have to take attendance manually.