無線表決系統(tǒng)的設(shè)計

電子機電論文編號:JD588 附原理圖,論文字?jǐn)?shù):21664,頁數(shù):81

目  錄

1 緒論 1
1.1無線表決系統(tǒng)的現(xiàn)狀 1
1.2無線表決系統(tǒng)的功能 1
1.1 設(shè)計思路 2
2  系統(tǒng)的組成和原理 3
2.1系統(tǒng)的組成 3
2.2系統(tǒng)的原理 3
3 無線表決系統(tǒng)的硬件設(shè)計 4
3.1主控硬件設(shè)計 4
3.2接口電路部分 16
4  無線表決系統(tǒng)的軟件設(shè)計 25
4.1單片機的編程語言 25
4.2  Visual Basic 語言開發(fā)環(huán)境 27
4.3系統(tǒng)程序 30
結(jié)  論 38
參考文獻 39
附   錄 40
謝    辭 74

摘  要

目前，在機關(guān)、學(xué)校和企事業(yè)單位會議中，經(jīng)常要對某些議案進行表決，然而國內(nèi)投票表決還多使用有線表決器，有線表決器有很多不足之處：如果會議要在不同地點舉行，同樣需要表決系統(tǒng)，那么工作人員就要在不同的會場重新布置繁瑣的線路，這樣就很容易出故障，不僅給工作人員帶來了極大的不便，而且也浪費了時間。
隨著無線局域網(wǎng)的發(fā)展，無線技術(shù)自身的優(yōu)勢不斷在應(yīng)用中體現(xiàn)出來，這時無線表決技術(shù)也日趨成熟與完善起來。相較與有線表決系統(tǒng)縱使會場的改變，工作人員也無需安裝布線，只要配置足夠的無線表決器既可，而且也不用改變會場原始的裝修風(fēng)格，既節(jié)省了人力，也節(jié)省了時間。
本文是以MSP430F123單片機和無線收發(fā)芯片nRF905為核心，研制的一種無線表決系統(tǒng),MP430F123是FLASH型單片機，具有超低功耗的性能，適合用在各種極低功率消耗的場合，具有一定的技術(shù)特點。采用nRF905作為收發(fā)模塊，制定了適合無線表決器系統(tǒng)的通信協(xié)議并分析了整個通信數(shù)據(jù)的收發(fā)過程最后在理論分析的基礎(chǔ)上，給出了具體的硬件設(shè)計和軟件設(shè)計。經(jīng)實踐證實，該系統(tǒng)具有功耗低，功能強，可靠性強和使用方便的特點，具有較高的推廣和應(yīng)用價值。

關(guān)鍵詞：無線表決；MSP430單片機 ；nRF905芯片；低功耗

ABSTRACT

At present, agencies, schools and enterprises and institutions meeting, often have to vote for certain, however, vote on more domestic use of the voting machine cable, Cable voting machine has many shortcomings: If the meeting to be held in different locations, we need to vote on the same system, the staff will be meeting in different lines of re-arrangement of red tape, so you can easily go wrong, not only to the staff brought a great deal of inconvenience, but also is a waste of time.
    With the development of wireless local area network, wireless technology, the advantages of its own constantly reflected in the application, when the wireless voting technology are becoming increasingly mature and perfect them. Even though the venue changes, staff also do not need to install wiring, so long as adequate to carry the wireless device can vote, but also do not have to change the venue of the decoration style of the original, saving manpower and time saving.
     This article is based on MSP430F123 single-chip and wireless transceiver chip nRF905 at the core, the development of a wireless voting system, MP430F123 is FLASH-based microcontroller, with the performance of ultra-low power, suitable for use in a variety of occasions, very low power consumption with certain technical characteristics. NRF905 used as a transceiver module, developed a voting machine for a wireless communication protocol and network analysis of the whole process of communication to send and receive data, the last in the basis of theoretical analysis, are given specific hardware design and software design. Confirmed by practice, the system has low power consumption, functionality, and reliability and user-friendly features, has a higher value of the promotion and application.

Key words：wireless voting; MSP430F123 single-chip; nRF905; low power