本文選題：可見光通信 + 白光LED��； 參考：《燕山大學(xué)》2014年碩士論文

【摘要】：隨著白光LED照明技術(shù)的不斷發(fā)展，它的優(yōu)點越來越受到人們的關(guān)注。白光LED不僅功耗小，壽命長，對環(huán)境無害無輻射，而且具有調(diào)制性能好，響應(yīng)靈敏度高，保密性好等優(yōu)點。利用白光LED的這些特性，用作照明的同時，還可以把信號調(diào)制到LED可見光束上進行傳輸，實現(xiàn)了一種新興的室內(nèi)可見光傳感器通信網(wǎng)絡(luò)，這種網(wǎng)絡(luò)系統(tǒng)可以實現(xiàn)室內(nèi)智能家電與當前互聯(lián)網(wǎng)進行信息交流，很適合搭建新一代的智能家居系統(tǒng)。 本文首先研究了可見光通信技術(shù)的特征，深入分析了室內(nèi)可見光傳感器網(wǎng)絡(luò)應(yīng)用在智能家電控制上的可行性。通過硬件軟件兩方面設(shè)計了系統(tǒng)的解決方案。 其次，通過研究CC430芯片的特點，設(shè)計了硬件系統(tǒng)的擴展模塊。最主要是設(shè)計了白光LED的信號調(diào)制驅(qū)動電路與信號解調(diào)放大電路，對白光LED的光源特性以及可見光探測器的性能進行深入分析研究，搭建了基于CC430硬件擴展平臺的室內(nèi)可見光通信系統(tǒng)。 再次，介于室內(nèi)可見光傳感器節(jié)點低功耗的要求考慮，提出了Contiki操作系統(tǒng)移植到CC430硬件系統(tǒng)上實現(xiàn)低功耗網(wǎng)絡(luò)節(jié)點的方案。設(shè)計了軟件程序流程，編寫相關(guān)移植程序，最后通過系統(tǒng)測試驗證了移植的可行性。 最后，在搭建的硬件系統(tǒng)上完成可見光信號的PPM調(diào)制解調(diào)，詳細分析PPM的編碼調(diào)制格式，提出了利用CC430調(diào)制解調(diào)可見光信號的解決方案。通過室內(nèi)可見光通信系統(tǒng)，完成放大電路性能測試，，數(shù)據(jù)采集，數(shù)據(jù)傳輸，數(shù)據(jù)的誤碼率測試的實驗過程，對實驗數(shù)據(jù)進行討論研究。
[Abstract]:With the development of white LED lighting technology, people pay more and more attention to its advantages. White LED not only has the advantages of low power consumption, long life, no radiation to the environment, but also has the advantages of good modulation performance, high response sensitivity, good confidentiality and so on. Using these characteristics of white light LED, we can modulate the signal to the visible light beam of LED and transmit the signal at the same time, and realize a new communication network of indoor visible light sensor. This kind of network system can realize the information exchange between the indoor intelligent home appliances and the current Internet, which is very suitable for building a new generation of smart home system. In this paper, the characteristics of visible light communication technology are studied, and the feasibility of indoor visible light sensor network in intelligent home appliance control is analyzed. The solution of the system is designed through two aspects of hardware and software. Secondly, the extended module of hardware system is designed by studying the characteristics of CC430 chip. The main work is to design the signal modulation drive circuit and signal demodulation amplifier circuit of white LED. The characteristics of white light LED and the performance of visible light detector are analyzed. The indoor visible light communication system based on CC430 hardware extension platform is built. Thirdly, considering the low power requirement of indoor visible light sensor node, a scheme of transplanting Contiki operating system to CC430 hardware system to realize low power network node is proposed. The software program flow is designed and the related transplant program is written. Finally, the feasibility of the transplantation is verified by the system test. Finally, the PPM modulation and demodulation of visible light signal is completed on the hardware system. The coding modulation format of PPM is analyzed in detail, and the solution of using CC430 to demodulate visible light signal is put forward. Through the indoor visible light communication system, the experiment process of amplifying circuit performance test, data acquisition, data transmission, data bit error rate test is completed, and the experimental data is discussed.
【學(xué)位授予單位】：燕山大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN929.1

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