Journal ArticleDOI
The history of RFID
TLDR
This RFID system uses the principle of modulated backscatter where it can transfer the data from the tag to the reader and changes the loading on the tag antenna in a coded manner corresponding to the stored data.Abstract:
Radio frequency identification (RFID) is an integral part of our life, which increases productivity and convenience. It is the term coined for short-range radio technology used to communicate mainly digital information between a stationary location and a movable object or between movable objects. This RFID system uses the principle of modulated backscatter where it can transfer the data from the tag to the reader. The tag generally reads its internal memory of stored data and changes the loading on the tag antenna in a coded manner corresponding to the stored data. RFID is a technology, which spans systems engineering, software development, encryption etc., and thus there are many engineers involved in the development and application of RFID and at present the shortage of technical and business people trained in RFID is hampering the growth of the industry.read more
Citations
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Journal ArticleDOI
Inductive Method for Evaluating RFID Security Protocols
TL;DR: The security and privacy of protocols in RFID systems are studied and analysed to verify the effectiveness of the combination of mathematical induction and model detection in verifying the OSK protocol and VOSK protocol.
Journal ArticleDOI
Circularly polarized stacked antenna with a high-impedance ground plane for RFID reader applications
Jwo-Shiun Sun,Yi‐Chieh Lee +1 more
TL;DR: In this article, a circularly polarized (CP) stacked antenna for the long range reader of a RFID is studied. And the proposed antenna using stacked patch technique with a high-impedance ground plane exhibits fairly good performances of 30 MHz bandwidth for 3 dB axial ratio, 70 MHz bandwidth referred to 10 dB return loss at the center frequency of 915 MHz.
Journal ArticleDOI
A Novel Method to Evaluate the RFID System Reliability
Jiawen Xie,Minli Wang,Jie Tan +2 more
TL;DR: A data-driven model to evaluate the reliability of RFID systems by analyzing the factors that affect RFID system reliability is presented and the experimental results show that the proposed model can evaluate the quality of RFIDs easily and quickly in different application scenarios.
Proceedings ArticleDOI
Active-RFID system operating in heavy environmental conditions to aid the production cycle of bentonite-coal dust mixtures for foundries
TL;DR: An algorithm to discriminate among different tags is developed and some results are presented and the system works in a very heavy environment and uses RFID tags as beacons to locate the various area of the factory.
Journal Article
Using the cloud computing architecture to automate the farmer input support programme(FISP) inventory system
TL;DR: A model was developed and used to come up with a prototype to integrate and automate business processes using barcode technology and the developed system showed improved processes in the FISP inventory system.
References
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Journal ArticleDOI
Communication by Means of Reflected Power
TL;DR: In this paper, the basic theory for reflected power communication is discussed with reference to conventional radar transmission, and the law of propagation is derived and compared with the propagation law for radar.
Journal ArticleDOI
Theory of loaded scatterers
TL;DR: In this paper, a general formulation for the problem of electromagnetic scattering by an object having N terminal pairs (or ports) to which N loads or an N-port network is connected is given.
Patent
Electronic identification system
TL;DR: In this article, an identification tag derives a harmonic signal from the impinging beam and radiates a beam of energy, at the harmonic frequency, which is pulse modulated in accordance with a preset identification code.
Journal ArticleDOI
Short-range radio-telemetry for electronic identification, using modulated RF backscatter
TL;DR: In this article, an electronic identification system using modulated backscatter from an RF beam-powered tag is described, where a subcarrier is used in the return signal format to allow separation from the background clutter and to allow use of a novel method to avoid RF phase problems.