Using rfid technology to develop an attendance system and avoid traffic 1Document Transcript
Using RFID Technology to Develop an Attendance System and Avoid TrafficCongestion around KindergartensRFID:Radio-frequency identification (RFID) is the use of a wireless non-contact system that uses radio-frequency electromagnetic fields to transfer datafrom a tag attached to an object, for the purposes of automatic identification and tracking. Some tags require no battery and are powered by theelectromagnetic fields used to read them. Others use a local power source and emit radio waves (electromagnetic radiation at radio frequencies).The tag contains electronically stored information which can be read from up to several meters (yards) away. Unlike a bar code, the tag does notneed to be within line of sight of the reader and may be embedded in the tracked object.RELATED RFID WORKSIN SCHOOLS AND UNIVERSITIES:School authorities in the Japanese city of Osaka are now chipping childrens clothing, back packs, and student IDs in a primary school.  A schoolin Doncaster, England is piloting a monitoring system designed to keep tabs on pupils by tracking radio chips in their uniforms. St Charles SixthForm College in west London, England, started September, 2008, is using an RFID card system to check in and out of the main gate, to both trackattendance and prevent unauthorized entrance. Similarly, Whitcliffe Mount School in Cleckheaton, England uses RFID to track pupils and staff inand out of the building via a specially designed card. In the Philippines, some schools already use RFID in IDs for borrowing books and also gatesin those particular schools have RFID ID scanners for buying items at a school shop and canteen, library and also to sign in and sign out for studentand teachers attendance.MEDICAL MANAGEMENT:The medical institution in Taiwan, Tri-Service General Hospital has been conducting an experimental project utilizing RFID to facilitate themanagement on patient tracking and epidemic prevention/control.The RFID system in this hospital applies to the emergency ward and operating room currently, in order to confirm the identity ofpatients and complete registration immediately for further treatment. The medical staff can obtain the patient detailed treatment record andphysical data including name, age, blood type, relatives name, and contact information, etc.ABSTRACTThis paper aims at developing applications based on active RFID and wireless GSM message to construct an active student attendance system thatsends the message to parents cellular phone informing whether their children are safely arrive in classroom at morning. Meanwhile, the system isalso used to relieve the traffic congestion around kindergartens especially while the parents are driving cars to pick up their children after class atrush or on rainy days.INTRODUCTIONTraditionally, the security of kindergartens is highly relied on the human’s effort and attention like guardians and teachers. However, if thereis no active informing service provide by kindergartens usually, parents have no idea of when and whether their children safelyarrive in their classroom after they are picked up by school bus. Every morning the student attendance offers the first hand information ofchildren safety.But sometimes it is complicated to exactly track the attendance since the children arrive in a period of time in themorning and some of them come with their parents and some come by school bus. So we develop an active RFID attendance systemto overcome the barriers and mistakes of manually taking attendance and combine the wireless GSM message service to provide real timeresponses to their parents cellular phone.Parents can check the message and understand when their children are safely arrived. On thecontrary, a noticing message will be broadcasted to administrators and parents if the children do not show up in a class on time so that theadults have the enough time to check out these particular children and prevent accident happens.Another main purpose of the system is used to relieve the traffic jam around the kindergarten after class, parents drive to school to pickup their children at the same time. Many cars would get stuck by kindergarten because they all temporarily park in front of the school andwait to find out their children and bring them out. The traffic chaos is more serious especially on rainy days or the kindergarten is locatedon a busy district. With the prior distributed RFID tags carried by parents, the system can detect the approaching cars in a specific distanceand identify the children who would be picked up next. Thus, the school broadcasting system would read the children name andguardians could bring them out so that these parent cars can pick up their children without additional waiting.IMPLEMENTATIONREQUIREMENTS:1.Electronic tags :Electronic tag chip will be stored uniquely identifies items that represent information; from the appearance point of view, the labelcan have a variety of packages; from the power supply point of view, the label is divided into two kinds of active and passive.Signal transceiver functions, real-time read the RFID tags within the scope of monitoring, and read through the appropriate networkinformation is passed to the background of the software system.2. Main Function:
UHF long distance RFID reader to read and write distance, you can simultaneously read multiple cardsThe passive tags do not need to maintain the multi-faceted reader antenna array structure, to ensure that no leakage to read thephenomenon.The reader automatically reads the card information. do not need to stay in card increased by efficiencyStudents to school and leave school via text message to the relevant parent/guardian prompt.The system data can be stored for a long, query UHF RFID reader, read range of 5 to 10 m,Through the entrances and exits can beaccurately identified by the system.easy to installREQUIREMENTS: RFID TAG RFID READER GPRS MODEMThese are the main requirementsRFID READER:An RFID reader is a device that is used to interrogate an rfid tag. The reader has an antenna that emits radio waves; the tag responds by sendingback its data. number of factors can affect the distance at which a tag can be read (the read range). The frequency used for identification, the antennagain, the orientation and polarization of the reader antenna and the transponder antenna, as well as the placement of the tag on the object to beidentified will all have an impact on the RFID system’s read range.It is used to construct the attendance system that operates at 433MHz and the longest range is about 58 meters.RFID TAGThe RFID tag can be affixed to an object and used to track and manage inventory, assets, people, etc. For example, it can be affixed to cars,computer equipment, books, mobile phones, etc.RFID offers advantages over manual systems or use of bar codes.The tag can be read if passed near a reader, even if it is covered by the object ornot visible. The tag can be read inside a case, carton, box or other container, and unlike barcodes, RFID tags can be read hundreds at a time. Barcodes can only be read one at a time.The major advantages of an active rfid tag are: It can be read at distances of one hundred feet or more, greatly improving the utility of the device It may have other sensors that can use electricity for power.3.GPRS MODEM:The term GPRS refers to General Packet Radio Service.GPRS is a packet oriented mobile data service on the 2G and 3G cellularcommunication systems global system for mobile communications (GSM), its main function is to send messages to its important users andto inform whom its status quo of the present system when an emergency happens. Besides, it is equipped with a function ofreceiving messages .If necessary,it can even turn the contents of messages into computer commands.
IMPLEMENTATIONFor example consider the the reader interfaceHere the operations performed here are :Searching for the tag,processing the tag,writing tags to database,writing tag information to file, reading taginformation from file.These are the basic operations performed in an RFID reader. 1. After a user press the button “connect “, the server will be connected to the reader. 2. At this moment , the reader starts reading tag ID number, and shows it in the tag ID column of a user operating interface. 3. After it is shown, the system will search for the related user’s information in the database accordingto the tag ID number, such as the students’ names, the parents’ names and whose mobile phone numbers and so on. 4. If it is school time at that moment, the system will send a message to the parents to confirm that their children have arrived at school safely . 5. If it is after school at that moment, the system will send the recording files related to the children to the media player list, and let the school broadcast the information on the campus The system is an active RFID system of enhancing security for kindergartens. 6. When a student goes into the school, the reader will respond the student’s tag and write his/her information into the roll file.At the same time,the system reads the information of the student and sends message to his/her parent through the massage sender. It proves that the student has reached school safely, and let his/her parent work without worry. RFID OPERATIONS AFTER ENTERING INTO SCHOOL: The RFID electronic identification tag can be a student’s nameplate. When a student in the kindergarten or in the elementary enters or leaves the campus, the reader established in the schoolyard will send a message to the school server, and another about “safe arrival “ or “safe leaving “ to his /her parent , which can let the parent understand the kid’s whereabouts completely. Meanwhile, the school can also control the
student’s attendance condition. By doing so, it forms a better and safer electronic protection.RFID OPERATIONS AFTER LEAVING SCHOOL:The reader can respond the parent’s tag away from about 50 meters, looking for his/her kid’s information in thedatabase, and read it out. After that, the system will put a recording file on the Media player list, and broadcast it throughthe school’s broadcasting system in advance. After the kid hears the message, he/she can earlier get ready to be pickedup by their parent outside the building so that their parent can immediately take their children without additionalwaiting. Consequently, the traffic congestion in front of the kindergarten is significantly relieved at rush hour afterclassCONCLUSION:The proposed student attendance system based on RFID technology and combine GSM message service to providethe real time information that informs the parents if their children are safely arrive in classroom on time everymorning with their cellular phones. Another purpose of the system is to avoid the traffic congestion by thekindergarten due to the approaching cars of the parents for picking up their children at the same time after school.ADVANTAGES OF RFID:Hands FreeRFID makes automatic reads, which saves labor and increases accuracy. It also allows you to wave your passport, credit card and so onfor instant approval.Read RateRFID in some configurations can read several hundred items in seconds (useful in retail, checking inventory and so on); bar code can readperhaps one item per second.ImplantableRFID is implantable in animals this allows animal farmers to monitor thousands of heads of cattle and zoologists to monitor the movements offish, deer, birds and other animals.TraceabilityWith RFID, any tagged item creates its own history. Thus, expired medicine, contaminated foods, lost items or simply an item of inventory maybe traced to its last known location.