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AT89C52單片機數碼管交通燈的設計+電路圖+程序

時間:2019-06-14 20:45來源:畢業論文
用于城市交叉路口的三色程控交通信號時間顯示器的研制方案,對其電源供電、發光二極管構成的負載結構、燈色時間檢測都給出了精巧合理的優化結構,大幅度地提高了產品可靠性并

摘要:    根據8052單片機的特點及交通燈在實際控制中的特點,本文提出一種用單片機自動控制交通燈及時間顯示的方法。同時給出了軟硬件設計方法,設計過程包括硬件電路設計和程序設計兩大步驟,對在單片機應用中可能遇到的重要技術問題都有涉足。本文對十字路口狀態預設為兩種,一種是正常狀態,另一種是故障或緊急狀態,并分別用黃、紅、綠色燈的不同組合來表示。本文介紹了控制基本原理以及控制的表現,同時也介紹了城市交通信系統的設計目標, 開發途徑及其系統結構與功能和數據地理編碼、建庫, 同時, 論述了系統中交通現狀、交通管理、交通規劃及背景信息查詢模塊的建造及應用。介紹了用于城市交叉路口的三色程控交通信號時間顯示器的研制方案,對其電源供電、發光二極管構成的負載結構、燈色時間檢測都給出了精巧合理的優化結構,大幅度地提高了產品可靠性并降低了制造成本。36242
畢業論文關鍵詞:8052單片機;交通燈;自動控制;定時器    
Design of traffic light based on AT89C52 single chip microcomputer
Abstract: According to the feature of SCM8052 and the characteristics of traffic lights in real control, the article puts forward the method of using single-chip microcomputer to control automatically the traffic signal lights and time-show. The method of realization of hardware has also been given, the whole process included hardware circuit designing and program designing, in which some important technique problem that may meet during the use of Single chip involved. In this paper,the state of crossing was designed as two states. One is normal, another breakdowns or urgent, which are expressed with different color lamp named yellow、red and green. The basic principle and method of controlling are introduced. In this paper, the design goals, development ways, system structure, system functions, geographic codes and data base of the Urban Traffic Information System (U T IS) were presented. Furthermore, the development and the application tests of the traffic situation model, the traffic management model, the traffic plan model and the background information inurement model of U T IS were discussed. This paper introduces the development scheme of three-color programmable traffic signal time indicator used in the level-crossing of our city, and gives its power supply, load construction made by LED and time detection of traffic lamp color a reasonable optimize structure. The reliability of Product is substantially improved while the cost is reduced. 源`自*六)維[論*文'網www.aftnzs.live
Key Words:SCM8052;traffic lights;automatic control;time indicator; external interrupt
目錄
摘要    i
Abstract    i
目錄    iii
1    緒論    1
1.1    課題的而目的和意義    1
1.2    國內外研究狀況和水平    1
1.3    本課題的重點    3
1.4    本章小結    3
2    交通燈及其控制系統    4
2.1    交通燈的作用    4
2.2    交通燈工作原理    4
2.3    處理器方案    5
2.4    控制系統方案    5
2.5    本章小結    7
3    單片機及元器件介紹    8
3.1    80C52單片機介紹    8
3.2    七段數碼管    10
3.3    發光二極管    11
3.4    本章小結    12
4    硬件電路設計    2 AT89C52單片機數碼管交通燈的設計+電路圖+程序:http://www.aftnzs.live/zidonghua/20190614/34596.html
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