| Summary: | 碩士 === 國立虎尾科技大學 === 電機工程系碩士班 === 107 === Traditional wireless transmission of power cannot be efficiently transmitted over long distances. However, although the enhanced power is effective in improving the charging efficiency, there are considerable doubts about the safety. For example, the problem of the mobile phone being hot, the long-term harm of the electromagnetic wave to the health of the human body, and other There are many kinds of wireless charging technologies, such as magnetic induction (Magnetic Induction) and magnetic resonance (Magnetic Resonance), in addition to the method of high-precision instrument interference. There are radio frequency, microwave and other technologies but it is rare. Magnetic induction is sensitive to the size and distance of the coil and affects the transmission efficiency. Most of them are used for short-distance transmission.
This paper is expected to propose two sets of wireless optical charging system architecture, namely contact wireless charging and long-distance wireless light charging. The research goal is to use the LED or laser light source to charge the mobile phone indoors, and design the circuit to simulate in the experiment. It is necessary to prove the feasibility of photoelectric conversion for wireless charging, and use LED and laser light source as charging energy in the light source part of the transmitter. In the receiving end, the photodiode was used as the receiving end of our experiment, and the photoelectric conversion efficiency and charging performance evaluation were analyzed.
The optical design is applied to the wireless light charging system. The first contact wireless charging is added to the single lens, cemented lens, collimating mirror, etc. to evaluate the wireless light charging performance; the second set of long-distance wireless optical charging system is added to the machine. Zoom lens, future research will integrate optical mirror design, image recognition, indoor positioning and other technologies to achieve long-range wireless light charging technology, and finally on the mechanical zoom lens will be combined with the Taguchi method to optimize the mirror set, for different zoom The segment is optimized for the action. The Taguchi method is different from the general optical design software. It is proposed to use multiple sets of experimental data to find the best parameters through different combinations. This paper hopes to reduce spherical aberration and comet. Aberration, increase modulation transfer function.
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