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Remote Wireless Core System Key Technology Research And Engineering To Achieve

Posted on:2007-02-05Degree:MasterType:Thesis
Country:ChinaCandidate:C ZhangFull Text:PDF
GTID:2208360182490424Subject:Information and Communication Engineering
Abstract/Summary:PDF Full Text Request
At present, with quickly growing of electronic need, the electric power industry developing quickly and the power capacity increasing continuously, the power producting department and the power transmitting department required more stability of the power system. In the actual movement of electric power, measuring the difference of phase was very important. Currently, the detecting phase system of three phase power-line was mostly in wired way, and only supported native and incomprehensive measure,so it obviously was not used in fargoingregion.The phasing detecting system of long-distance and wirlless was used for the phase measure of the electronic power line. The system used the world wide fixed telephone network and mobile telephone network. In order to avoiding the delay which came from the telephone network transmitting, the system used GPS technic, which could provide the time benchmark. Adopting the wireless transmitting,the equipment of the mobile part was wireless linking, which improved the security and agility of the system, in mean time, the equipments adopted numeral delivers way, promising the credibility of deliver, raising to measure accuracy. The handset could display the measuring result with the digital and graphics way, showing the test result clearly, understood easily.The author firstly introduces the systematic architecture and historic/future development of phase detecting system, analysised the detailed application environment and design principles, then studied all the relevant theories like GPS, RF modulation, antenna and etc. Based on that foundational research, and the present condition of national mobile communication, the hardware and software design of system was describing detaily. At end, the author tested the whole system , it was proved to be with good performance according to testing.
Keywords/Search Tags:long-distance, phase-detecting, GPS, helix antenna, GSM, Tire recognition low power consumption design
PDF Full Text Request
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