【正文】 ....................................................................... 2 籃球賽計(jì)時(shí)計(jì)分器研究目的與意義 .................................................................. 2 課題任 務(wù)及要求 ......................................................................................................... 3 課題內(nèi)容及安排 ......................................................................................................... 3 第 2 章 籃球賽計(jì)時(shí)計(jì)分器的總體方案論證 ..................................................................... 4 籃球賽計(jì)時(shí)計(jì)分器的硬件方案論證 ......................................................................... 4 籃球賽計(jì)時(shí)計(jì)分器的軟件方案論證 ......................................................................... 5 籃球賽計(jì)時(shí)計(jì)分器部分器件方案論 證 ..................................................................... 6 硬件譯碼與軟件譯碼的比較 .............................................................................. 7 CD4511 與 MC14495 的比較 ............................................................................... 8 第 3 章 籃球賽計(jì)時(shí)計(jì)分器的硬件設(shè)計(jì) ........................................................................... 11 球賽計(jì)時(shí)計(jì)分器的工作原理 ................................................................................... 11 計(jì)時(shí)電路的設(shè)計(jì) ....................................................................................................... 11 計(jì)時(shí)電路的工作原理 ........................................................................................ 12 賽程時(shí)間設(shè)置 .................................................................................................... 13 賽程時(shí)間啟 /停設(shè)置 ........................................................................................... 14 計(jì)分電路的設(shè)計(jì) ....................................................................................................... 14 計(jì)分電路的工作原理 ........................................................................................ 14 比分交換控制的實(shí)現(xiàn) ........................................................................................ 14 比分刷新控制器 ................................................................................................ 14 比分校正控制電路 ............................................................................................ 16 報(bào)警電路設(shè)計(jì) ........................................................................................................... 16 單片機(jī)的選擇 ........................................................................................................... 17 顯示電路的設(shè)計(jì) ....................................................................................................... 18 復(fù)位電路的設(shè)計(jì) ....................................................................................................... 20 第 4 章 籃球賽計(jì)時(shí)計(jì)分器的軟件設(shè)計(jì) ........................................................................... 22 監(jiān)控程序設(shè)計(jì) ........................................................................................................... 22 計(jì)時(shí)顯示子程序設(shè)計(jì) ............................................................................................... 23 計(jì)分顯示子程序設(shè)計(jì) ............................................................................................... 25 LED 顯示子程序設(shè)計(jì) ............................................................................................... 27 畢業(yè)設(shè)計(jì)（論文） IV 第 5 章 籃球賽計(jì)時(shí)計(jì)分器的整體調(diào)試 ........................................................................... 29 調(diào)試分析 ................................................................................................................... 29 故障調(diào)試及解決方式 ............................................................................................... 30 聯(lián)調(diào)結(jié)果 ................................................................................................................... 32 結(jié) 論 ................................................................................................................................. 35 社會(huì)經(jīng)濟(jì)效益分析 ............................................................................................................. 37 參考文獻(xiàn) ............................................................................................................................. 38 致 謝 ................................................................................................................................. 40 附錄Ⅰ 籃球賽計(jì)時(shí)計(jì)分器的硬件原理圖 ....................................................................... 41 附錄Ⅱ 程序清單 ............................................................................................................... 42 附錄Ⅲ 元器件清單 ......................................................................................................... 565 畢業(yè)設(shè)計(jì)（論文） 1 第 1章 緒 論 在我們生活的大千世界上，人類(lèi)已進(jìn)入了科學(xué)技術(shù)空前發(fā)展的信息社會(huì)。 實(shí)踐證明， 該系統(tǒng)精度高、穩(wěn)定性好、抗干擾性強(qiáng)，具有一定的應(yīng)用前景 。 此系統(tǒng)能否清晰、穩(wěn)定、精確的反應(yīng)體育比賽中的客觀(guān)數(shù)據(jù)，直接影響到比賽的公平性和公正性。本文針對(duì) 上述情況研制了 籃球賽計(jì)時(shí)計(jì)分器 。 關(guān)鍵詞： 計(jì)時(shí)器；計(jì)分器 ； 單片機(jī) ； LED顯示 畢業(yè)設(shè)計(jì)（論文） II Abstract The system of time and score recorded in the sporting games is the one like this: the data about time and socres that generated in the process of the games can be collected rapidly, processed, transmited and be used. If the system can reflect the objective data in the games clearly, stably and accurately, it will affect the fairness and impartiality of the games. According to this, calculagraph and scores recorder of the basketball games are researched and designed in this paper. The core of the system is the MCU, using seven segments LED as the display. In order to adjusting the time and the scores of the game, eight keys are used in this paper. The functions of these keys are: recording the scores of the team A and B, setting up or adjusting the time of the game, and starting or suspending the time of the game. The timing alarm system is also designed in the system. Experiments has proved that the system has high precision, good stability, strong antiinterference and it have a application prospects. Key words: calculagraph。在這個(gè)瞬息萬(wàn)變的信息社會(huì)里，隨著大規(guī)模集成電路、計(jì)算機(jī)技術(shù)的迅速發(fā)展，以及人工智