基于感應無線的有軌機車定位技術的研究與應用
[Abstract]:Mobile rail locomotives are more and more widely used in industrial automation field, and their safety automation management is facing great challenges. In order to solve the problem that it is difficult to locate accurately in the safety automatic management of mobile rail locomotives, the research and application of induction wireless rail locomotive positioning technology are carried out in this paper. In this paper, based on the theory that the magnetic field around the electrified conductor makes the nearby coil produce induction EMF, by establishing the transmission model of induction wireless channel, a high resolution induction wireless location algorithm in non-uniform magnetic field is proposed, and a high resolution induction wireless positioning detector based on DSP is designed combined with the application of induction wireless positioning technology in the positioning of mobile rail locomotives. The work and innovation of this paper mainly include the following aspects: (1) the channel model of induction wireless technology is analyzed theoretically, and the magnetic induction model between address cable and address induction coil is established. Through computer software simulation, it is proved that the magnetic field produced by address cable in vertical direction is non-uniform magnetic field; (2) by analyzing the characteristics of induction wireless data communication, an induction wireless data communicator with MSK modulation is designed. The experimental results show that the highest communication rate is 1152Kbpsand the bit error rate is 10. (3) on the basis of non-uniform magnetic field, the HRPD detection algorithm in induction wireless positioning technology is derived. (4) combined with the application of induction wireless positioning technology in the field of mobile rail locomotives, a high-resolution induction wireless positioning detector based on DSP is designed from the point of view of software radio. The experimental results show that the positioning accuracy of the detector reaches 2 mm, and the positioning detection period is reduced to 10 Ms, and the feasibility of HRPD algorithm in non-uniform magnetic field is proved.
【學位授予單位】:湖南理工學院
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:TN92
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