also serves as my access point to the network provider. The access point is where your wireless signal is turned into a digital signal and sent through a cable. The last two pieces are antennas and repeaters. Antennas and repeaters allow you to extend the range of your wireless network. First you place an antenna to attempt to reach all the client systems within your area of coverage. If you have outlying systems that are not within the gain of the antennae you can use a repeater. It acts as a
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is a wireless identification. Normally the RFID system comprises of two main parts: RFID Reader and RFID Tag. RFID Reader is an integrated or passive network which is used to interrogate information from RFID tag. The RFID Reader may consist of antenna‚ filters‚ modulator‚ demodulator‚ coupler and a micro processor. [pic] AUTOMATED ATTENDANCE SYSTEM COMPONENTS OF SYSTEM The figure below shows the basic block diagram of the AUTOMATED ATTENDANCE USING RFID. It contains the following blocks:
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ANNA UNIVERSITY‚ CHENNAI AFFILIATED INSTITUTIONS R 2008 B.E. ELECTRONICS AND COMMUNICATION ENGINEERING II - VIII SEMESTERS CURRICULA AND SYLLABI SEMESTER II SL. No. COURSE CODE COURSE TITLE L T P C THEORY 1. 2. 3. 4. 5. a 5. b 5. c HS2161 MA2161 PH2161 CY2161 ME2151 EE2151 EC2151 Technical English – II* Mathematics – II* Engineering Physics – II* Engineering Chemistry – II* Engineering Mechanics (For non-circuit branches) Circuit Theory (For branches under Electrical Faculty) Electric Circuits
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Earlang B is used. a. Find the number of channels in each cell for a four-cell reuse system. b. If each cell is to offer capacity that is 90% of perfect scheduling‚ find the maximum number of users that can be supported per cell where omnidirectional antennas are used at each base station. c. What is the blocking probability of the systems in (b) when the maximum number of users are available in the users pool? d. If each new cell now uses 120° sectoring instead of omnidirectional for each base station
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has to work together with RFID tag and RFID reader to complete the data collection process‚ RFID tag consists of microchips that able to store as much as two kilobytes of data which attached to a radio antenna mounted on a substrate while RFID reader is a device that contains one or more antennas that release radio waves and receive signals back from tag then RFID reader is needed to retrieve the data stored on RFID tag and transferring the information in digital form to a computer system (Violino
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Chapter 3; 80‚ 82‚ 87 80. Creek Ratz is a very popular restaurant located along the coast of northern Florida. They serve a variety of steak and seafood dinners. During the summer beach season‚ they do not take reservations or accept “call ahead” seating. Management of the restaurant is concerned with the time a patron must wait before being seated for dinner. Listed below is the wait time‚ in minutes‚ for the 25 tables seated last Saturday night. |28 |39 |23 |67 |37 |28
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RFID based Library Management system (LMS) would allow fast transaction flow for the library and will prove immediate and long term benefits to library in traceability and security. The proposed system is based on UHF RFID readers‚ supported with antennas at gate and transaction sections‚ and library cards containing RFID-transponders which are able to electronically store information that can be read / written even without the physical contact with the help of radio medium. This paper presents the
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usage of wireless telecommunications systems and miniature sensor devices like RFID passive Tags ‚ that are smaller than a grain of rice and equipped with a tiny antenna which will capture and wirelessly transmit a person’s vital body-function data‚ such as pulse or body temperature ‚ to an integrated ground station. In addition‚ the antenna will also receive information regarding the location of the individual from the GPS (Global Positioning Satellite) System. Both sets of data
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as a ratio of the coherent and incoherent components of the signal intensity [3]. Using the K-factor spatial distribution depending of the features of built-up terrain‚ an information data stream both for MIMO correlated antennas (the good case) and uncorrelated MIMO antennas (the worst case)‚ as well as the capacity and spectral efficiency are predicted‚
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known as millimeter waves. These waves can also be used for power transmission in such a way‚ by converting DC power to microwaves and then by using antenna‚ these are transmitted‚ and after that rectenna receive those waves and converts them into DC again which can be further inverted into AC. The basic components include microwave source‚ an antenna for transmission‚ and a rectenna as a receiver. It has many applications such as it is used for power supply purpose in orbital lift space ships.
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