【導(dǎo)讀】[摘要]介紹基于STC89C51單片機(jī)的籃球比賽計(jì)時(shí)計(jì)分系統(tǒng)。本次設(shè)計(jì)的籃球賽計(jì)時(shí)計(jì)分系統(tǒng)通過STC89C51編。通過按鍵控制電路設(shè)置比賽定時(shí)時(shí)間，暫停時(shí)間，立即刷新甲、比賽進(jìn)行到半場(chǎng)結(jié)束交換場(chǎng)地時(shí)，兩隊(duì)比分能交換顯示的位置，比賽結(jié)束時(shí)，系統(tǒng)可以發(fā)出報(bào)警的指令以及在賽后。及時(shí)暫存成績(jī)等功能。該系統(tǒng)價(jià)格低廉，性能穩(wěn)定，攜帶方便且操作簡(jiǎn)潔，廣泛應(yīng)用于各類學(xué)?；蛘咝⌒蛨F(tuán)體作為

　　

【正文】 d their own microcontroller, from eight, 1632, etc., but they are unique, mutually plementary for microcontroller applications a vast world. Timing basketball scoring device is a microcontroller as the core of the timed scoring system by the timer, scoring device, the integrated controller and 24 seconds the controller and other ponents.Basketball is a shooting one centered confrontational sport, January 1892 (another way of saying in December 1891),the United States , Massachusetts, Springfield YMCA Training School teacher James Ness Smith by Dr. INNOVATION In order to improve the game of basketball, he developed in 1892, 13 of the rules, after the gradual modification and addition of provisions, the number of appearances is gradually reduced until the provisions of 5 people per team, this has bee the modern basketball, acpanied by the emergence of basketball, timing scoring basketball also emerged. Initially, there is no formal timing scoring device, only a simple game clock and scoreboard. In 1932, just born to American universities use the FIBA basketball rules as a basis for the world39。s first unified petition rules, while also scoring basketball game timer began to enter the electronic age , Began the game clock, scoring circuit is a simple circuit when used for suspension or suitable (visible) device (not the game clock). Two separate, distinctly different and very loud signal, record table, team fouls signs. 1980s is highly technical and synchronous speed development period, while focusing on developing countries in height, electronic technology has entered a new stage, and gradually form a plete breakthrough in the traditional concept of a new generation of instruments intelligent , most traditional electronic instruments and updating the existing corresponding intelligent instrumentation products, microcontroller to control the core, intelligent devices can also be applied to the basketball arena in.After years of research and production practice, solve the problem of lowscoring basketball timing performance and stability, low accuracy, volume and other clumsy workmanship. But basketball is not timed scoring is widely used in various places, its high costs, some small and medium factories, schools, businesses or the continuation of the hand to the timing and scoring. SCM control system is simple to use button operation, LED display, easy to install. Solve the basketball game counter installation, saving wire, suitable for all sizes of stadiums to use, it can replace the traditional method of using 陜西理工學(xué)院畢業(yè)設(shè)計(jì)第 24 頁(yè)共 45 頁(yè)the watch timer, of course, a little change can also be used for other ball games, sports an example of equipment to intelligent development.Although the game of basketball very early began to study the application of electronic timing scoring device, but usually using analog electronics, digital electronics, or analog, digital, mixed position, its stability and high accuracy timing scoring persists some problems. With the continuous development and updating of science and technology of electronic technology, its stability and high accuracy timing scoring is still the subject of scientific research and production.Electronic engineering technology, integrated and systematic promotion of the development of electronic engineering technology, but also to promote electronic engineering technology is widely used in various sectors of society. With the singlechip widely used in various fields, many microcontroller for control of game time scoring system will be shipped to produce, for example, the microcontroller controls the timing scorer LCD liquid crystal display, MCU control LED segment display timing scoring device Wait. Meanwhile microcontroller widely used in this field, but also greatly enhance the game39。s scoring in the timing stability and accuracy.Basketball scoring screen is a ubiquitous electronic products, after years of development, the technology is already quite mature. According to the current requirements of highlevel basketball game, basketball game perfect timing system equipment should be capable of handling live scores, live big screen, TV trucks, and other associated equipment, in order to achieve a high sense of petition site, offer entertainment features such as target audience. With the widespread promotion of industrial structure adjustment of electronic technology, the rapid development of the production process and basketball, the market demand for basketball scorer is also growing. Timing scoring basketball game utilizes SCM STC89C51 timekeeping and scoring functions. STC89C51 by the programming control LED sevensegment LED display for the game time scoring. The system has a regular schedule set, schedule time to pause, timely refresh of both A and B grades, when the exchange field venues, to exchange A and B teams were in position at the end of game time, game instructions, and can alarm results scratch and other functions. Based STC89C51 MCU timer basketball scoring device, use mon cathode 7segment LED as a display device. Access a four in one mon cathode 7segment LED display, 2 Trinity 7 陜西理工學(xué)院畢業(yè)設(shè)計(jì)第 25 頁(yè)共 45 頁(yè)segment LED display mon cathode, the former used to record the time schedule, which is used to display 2 minutes, 2 seconds for the display, with the latter B team to record a score, each team three integrated LED display range can reach from 0 to 999 points. Schedule timer count down approach, starting the timing when the start of the race, until the timing to zero. To cope with the timer and scorer correction adjustment time and score, you can set up buttons for settings, adjust the time, start, pause and adjust the score and other functions. SCM control timer makes basketball scoring system using a simple button operation, LE