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The Research Of Wireless Intelligent Electronic Card System

Posted on:2009-04-25Degree:MasterType:Thesis
Country:ChinaCandidate:M H ZhangFull Text:PDF
GTID:2178360245990782Subject:Power electronics and electric drive
Abstract/Summary:PDF Full Text Request
The rapid development of information technology of new economy era is increasingly influencing and profoundly changing people's production and daily life. Great numbers of wireless intelligent electronic cards and their popularization and application is closely related to people's daily life, for example: clothing, food, housing and vehicle.A large number of domestic and international research institutions and companies have been already investing a huge amount of human and material resource, and gained a achievement in the development of wireless intelligent electronic card and their application with good prospect. It is developing in the direction of easy-use, safety, credibility, low-power, low-cost, and so forth. All of which is important part of information technology significant revolution.The new generation of wireless intelligent electronic card system, based on the background of the parking communication system, through theoretical research and practice of engineering innovationin,is exploited and designed in this paper.The wireless intelligent electronic card system is mainly composed of infrared receiver module,wireless transmitter module,wireless receiver wake-up modules,the control unit and antenna.The reader,controller,cameras and computer of parking entrances complete wireless intelligent electronic card authentication and its information collection. The symbol automobile identity data and information of wireless intelligent electronic card is ultimately transmitted to the management by the network.Thereinto,the innovation of entire wireless intelligent electronic card system include:(1) The power management mode by Wireless awakening triggered and the measures of reducing the static power of the system, complete low power to the system of wireless intelligent e-card, and therefore extend wireless intelligent electronic card life and working hours.(2) For the wireless smart card electronic stability of the problem, through the use of microstrip design technology and design circuit newly to solve the frequency drift, frequency shift and clutter of the wireless intelligent electronic card, and the instability led by other factors.(3) The rectangular micro-strip antenna and four-element rectangular micro-strip antenna array are designed for wireless intelligent electronic card system. The rectangular micro-strip antenna can be sensitive to incept awakening signal from the reader. It transmits awakening signal to make such wireless intelligent electronic card work in the direction of them in a certain scope of region and avoid other wireless intelligent electronic card are awakened outside the communication region.A low-power, low-cost, good stability, strong anti-interfere is characteristic of the wireless intelligent electronic card,as the carrier of information of vehicles and vehicle owners. In electronic application system in parking, the wireless intelligent electronic card can resove the current problem that has not resolved some issues, such as interference of the approaching lanes and signal instability. The researched wireless intelligent electronic card system complete effective inspection and monitoring for vehicles information to ensure that the entire parking system working is safe,automatic,running quickly.All of which can usefully promote development and construction network and information of the entire community.
Keywords/Search Tags:radio frequency identification technology, wireless intelligent electronic card, stability, rectangular micro-strip antenna, four-element rectangular micro-strip antenna array
PDF Full Text Request
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