需要金幣： 1000 個金幣 |
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| 轉(zhuǎn)換比率：金額 X 10=金幣數(shù)量， 例100元=1000金幣 | 論文字?jǐn)?shù)：9806 |  | |
| 折扣與優(yōu)惠：團購最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘要：XX學(xué)院校園廣播是一個人工控制的播音系統(tǒng)，廣播系統(tǒng)是我校不可缺少的基礎(chǔ)設(shè)施和重要傳媒平臺之一，雖然近幾年來視頻技術(shù)和網(wǎng)絡(luò)技術(shù)在飛速的發(fā)展，但廣播系統(tǒng)仍以它的實用性、經(jīng)濟性和便捷性被各大中院校所采用。 然而傳統(tǒng)的校園廣播基本都是采用模擬音源，人工播放、人工管理的工作方式，不能播放現(xiàn)代數(shù)字格式（MP3、WAV）音頻文件，無法實現(xiàn)音源數(shù)字化、播放管理自動化，有時還會因人員操作失誤或者延時操作，影響到學(xué)校的正常作息時間和工作安排。 為了解決這些問題，本文從傳統(tǒng)校園廣播存在的缺陷出發(fā)，提出了一種基于PC機的校園作息音樂廣播自控系統(tǒng)的設(shè)計方案，作為一種新穎實用的綠色環(huán)保型現(xiàn)代教育裝備。在這里，我們以PC機及聲卡為核心，借助PC機的強大的數(shù)據(jù)處理和管理能力，研制一塊基于PC總線的控制卡，通過采用8255A、數(shù)字電位器等接口芯片，借助PC機內(nèi)部的定時計數(shù)器，自動控制音頻信號傳輸，配合軟件實現(xiàn)對廣播系統(tǒng)的定時開機、關(guān)機、音樂播放及音量的自動控制，全面將學(xué)校作息、課間播音、校園廣播通知等廣播活動納入自動化管理中，從而實現(xiàn)校園作息音樂的自動定時播放。 關(guān)鍵詞：校園廣播；PC總線；并行接口；音量程控；定時控制
ABSTRACT:The Honghe University campus radio is an artificially controlled broadcast system, broadcasting system is the indispensable infrastructure and the important media platform, although in recent years one of video technology and network technology in the rapid development, but broadcasting system with its practicability, still the big economy and convenient is unitary resource use. However, the traditional campus radio basic are using analog audio source, artificially broadcast, artificially management way of working and will not play modern digital format (MP3, WAV) audio files, cannot achieve audio digital, played management automation, sometimes for personnel operating mistakes or delay operation, affect the normal school schedules and work schedule. In order to solve these problems, this article from the defects of traditional campus radio, based on a kind of PC routine music radio control of campus design scheme of the system, as a kind of novel and practical modern education of green environmental protection equipment. Here, with our PCS and sound card as the core, with the PC powerful data processing and management ability, and develop a PC bus-based control card, by adopting such 8255A, digital potentiometer, with the help of PC interface chip internal timing counter, automatic control audio signal transmission, cooperate to broadcast system software realization start up and shut the timing of the music playback and volume, automatic control, comprehensive routine, the break will school campus radio broadcasts, broadcast activities into notice, so as to realize the automation management in routine music automatic timing campus broadcast. Keywords: Campus Broadcast；PC bus ；Parallel Interface；Volume Controlled By program；Control regularly
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