外文翻譯--公交車自動報站系統(tǒng)-閱讀頁
2025-06-06 07:57本頁面
【正文】 s directly affect the quality of the service. Traditional stops by the crew artificially, and in this way because of its poor and working intensity effect is too great, in many big cities have been eliminated. In recent years, with the development of science and technology progress and microputer technology in many fields has been widely used. In the acoustic field, with various pronunciation chip microputer technology, can plete bined speech synthesis technology, makes the car stops controller is realized for citizens bees possible, and thus provide a more personalized service. In view of the traditional bus stops system deficiency, bined with the use of public transport vehicle characteristics and practical operating environment, the design of a singlechip microputer control bus stops system automatically. The bus stops the design of automatic device is mainly to pensate for changing the traditional voice stops device must have driver control can work backward way, pitted, automatic station broadcasts sixfoottall service term for the public and provide more humanized more perfect service. 2. The system design of each ponent This system is designed hardware circuit design part: use AT89C51 as controller, through ISD4004 pronunciation chip establish speech, forming a variety of information and use the voice messages broadcast speech information and tips amplifier, and using speech, LED digital display for standing count. When the bus arrived at one site, use the keyboard control the system work, through the yukon voice circuits output speech information and tips, stood in several information LED digital tube display. The whole system hardware design including keyboard circuit and reset circuit, display driver circuit, display circuit, memory expansion circuit module. In order to realize the bus stops, namely in speech automatic sixfoottall
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