Gate log system using rf-id reader

Chapter oneGATE LOG SYSTEM victimizationRF-ID READER1.1 What is RFIDShort for wire little frequence designation, RFID is a dedicated short scope communication ( DSRC ) engineering. The term RFID is apply to de paintingt assorted engineerings that use wireless base ridges to automatic totallyy place people or objects. RFID engineering is similar to the bar codification designation systems we see in retail shops everyday heretofore one large difference between RFID and saloon codification engineering RFID does non trust on the line-of-sight filling that saloon codification scanning requires to work.1.2 why RFIDIn an progressively disconnected, regulated, and unsure universe, Texas Instruments ( TI ) RFID engineering gives concerns, authoritiess, and consumers a safe, private, and unnoticeable expression to maintain path of it all.Consumers benefit from shorter lines at check-out procedure counters, in infirmaries, libraries, and drift Stationss because RFID fast-tracks them t o the forepart of the waiting line. They can besides profit from lower monetary values because of the efficiencies RFID brings to the supply concatenation.Business and establishments are turning to RFID engineering as they comply with authorities harvest-tide-tracking ordinances, seeking to restrict stealing, cut down out-of-stock losingss, fortify trade plant trueness, and do interaction with clients a more validating experience.RFID is a mature, exhaustively tested engineering. In most RFID applications, the period of tests, proving, and frugal feasibleness surveies is over. Large-scale RFID system rollouts are underway.1.3 RFID Application OverviewThere are more or less as many RFID applications as in that location are concern types. titanium has established a leading place in these basic classsself-propelling Auto-makers remove added security and convenience into an car by utilizing RFID engineering for anti-theft immobilizers and passive-entry systems.Animal track R anchers and farm animal manufacturers use RFID engineering to run into export ordinances and hone farm animal value. Wild animate beings are tracked in eco recordical surveies, and many pets that are tagged are returned to their proprietors.Asset Tracking Hospitals and pharmaceuticss stand tough merchandise answerability statute law with RFID libraries limit larceny and maintain books in circulation more expeditiously and athleticss and amusement enterprisers find that extraneous tickets are their ticket to a better underside line and happier clients.Contact less Payments Blue-chip companies such as American Express, Exxon Mobil, and MasterCard use advanced form factors enabled by TI RFID engineering to beef up trade name trueness and encouragement gross per client.Supply Chain WalMart, Target, BestBuy, and other retail merchants have discovered that RFID engineering can maintain stock lists at the optimal degree, cut down out-of-stock losingss, bound shrinkage, and velocit y clients through check-out lines.About from the beginning, TI was there assisting set up criterions back uping the RFID supply concatenation of inlay and approximate makers and systematically using leading-edge semiconducting material engineering to the nucleus of RFID, the transponder.1.4 why this undertaking is of importWhat we are be aftering to make is a introduction lumber system based on the new engineering which is the RF-ID READER, the drug substance abuser pass on hold a CARD that ordain let him to come in the gate, when he acquire near to the gate the receiving system will as certain the card and read the informations stored on the card wirelessly by mean of the rf-id reader.The microcontroller on the receiving system will read the informations from the RF-ID reader and if the user is allowed to come in the microcontroller will give the signal to open the motor ( gate ) .else a message will look on the LCD and the motor will non open.An of import portion of our u ndertaking is the Personal calculating machine interfacing so all of the operations and the event will be displayed on a log tabular array.1.5 System block diagram The chief constituents that will be usedmovie microcontroller ( pic16f876A )DC-motor ( little motor for simulate open/close )Consecutive interface spot ( this bit will manage the electromotive force degrees between the microcontroller and the personal computer )RF ID-readerH-bridge this is a will known circuit which have two inputs from the microcontroller to fight off the motor clock wise or counter clock wiseLCD ( transparent crystal show ) that will be used to expose the user figure and any coveted notes such as ( non known user )1.6 Features that leads to take ID-12d as the rf-id reader for this undertakingIt requires 5V supply ( it can be supplied from the same supply as movie )125kHz read frequence ( congruous with most sorts of releasing factor cards )EM4001 64-bit RFID ticket compatible9600bps TTL and RS232 e nd intersection point ( can be connected straight to pic microcontroller utilizing the usart faculty )100mm read scope ( good reading distance )1.7 Method of operationThe end product of the rf-id reader is consecutive which will be connected straight to pic microcontroller, when the reader detects any rf-cards in scope it will read it and run the ruddy informations ( 64-bit ) serially, the microcontroller will have those bytes and hive away them in a twine, so it will compare whether this Idaho is existed or non, this action will be displayed on the liquid crystal display.If the user is allowed to come in the gate so the microcontroller will publish the bid to the h-bridge to open the dc_motor, wait certain clip so publish the shutting bid.Besides the microcontroller will reckon the information to the personal computer ( serially ) to be stored in a log tabular arrayNeeded packagemikrobasic compiler, this will be used to drop a line the codification for the microcontrollerocular basic.NET, this package will be used to compose the plan that will have the information from the microcontroller and show it on a tabular array.