【摘要】：汽車和移動設備(手機和平板電腦)越來越多的進入了中國人的家庭,于是產(chǎn)生了在汽車上使用移動設備的需求。比如將手機的音樂通過汽車音響播放,利用汽車音響播報手機的導航信息,利用汽車的電源給移動設備充電。本論文為滿足以上眾多功能需求,開發(fā)了一種具有優(yōu)良性能的藍牙轉FM(調(diào)頻廣播)的車載充電器。該汽車電子產(chǎn)品綜合采用傳統(tǒng)藍牙技術、FM發(fā)射機技術和車載電源快速充電技術,設計一個帶充電功能的車載音樂播放器,將車載電源、用戶手機和汽車音響組合在一起,為用戶服務。本文的主要研究內(nèi)容包括:(1)硬件實現(xiàn):電源部分選用專用的車充電源芯片,具有輸入電壓寬范圍、輸出電流能力強和保護功能齊全的特點。配合專用的USB充電協(xié)議識別芯片,可以支持蘋果手機和平板充電協(xié)議、三星手機和平板充電協(xié)議、一般安卓手機和平板充電協(xié)議。藍牙部分選用CSR公司的藍牙芯片,支持藍牙協(xié)議V4.2,支持A2DP和Handset協(xié)議。FM部分選用RDA公司的FM發(fā)射芯片。主控部分選用STC15系列51內(nèi)核單片機,負責藍牙部分電源,按鍵和LED的控制,以及通過I2C總線控制FM芯片。(2)軟件實現(xiàn):主控軟件采用Keil C51集成開發(fā)環(huán)境。藍牙軟件采用了ConfigTool-CSR8600 ROM series參數(shù)設置軟件。(3)測試驗證:最后通過測試FM的RF性能以及音頻性能、USB充電器的電氣性能、整機的音頻特性,驗證了本開發(fā)產(chǎn)品的實用性。
[Abstract]:Cars and mobile devices (mobile phones and tablets) are increasingly entering Chinese homes, creating demand for mobile devices in cars. For example, the music of the mobile phone is played through the car stereo, the navigation information of the mobile phone is broadcast by the car sound, and the mobile device is charged with the power supply of the car. In this paper, a Bluetooth to FM (Frequency Modulation Broadcasting) on-board charger with excellent performance is developed to meet the needs of the above functions. This automobile electronic product synthetically uses the traditional Bluetooth technology, the FM transmitter technology and the on-board power supply quick charge technology, designs a car music player with the charge function, combines the on-board power supply, the user's mobile phone and the automobile sound. Serve the user. The main research contents of this paper are as follows: (1) hardware realization: the power supply part uses the special car filling power supply chip, which has the characteristics of wide input voltage range, strong output current ability and complete protection function. Combined with a dedicated USB charging protocol identification chip, it can support Apple and tablet charging protocols, Samsung phones and tablet charging protocols, and Android phones and tablet charging protocols in general. The Bluetooth part uses the Bluetooth chip of CSR company, supports Bluetooth protocol V4.2, supports A2DP and Handset protocol, and uses the FM transmitter chip of RDA Company in FM part. The main control part is composed of STC15 series 51 kernel single-chip microcomputer, which is responsible for the control of Bluetooth power supply, keys and LED, as well as the control of FM chip through I2C bus. (2) Software realization: the master control software adopts Keil C51 integrated development environment. Bluetooth software adopts ConfigTool-CSR8600 ROM series parameter setting software. (3) Test verification: finally, by testing the RF performance and audio performance of FM, the electrical performance of USB charger and the audio characteristic of the whole machine, the practicability of the developed product is verified.
【學位授予單位】：廣東工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TN925;U463.6

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相關碩士學位論文 前3條

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本文編號：2404308