單片機智能控制交通系統(tǒng)

摘要：本設(shè)計的目的在于設(shè)計出一個具有實用價值、性價比較高的智能交通燈控制系統(tǒng)。該系統(tǒng)性能較好，且穩(wěn)定性高，可實現(xiàn)十字路口城鄉(xiāng)交通自動控制和緊急情況下能夠手動切換信號燈讓特殊車輛優(yōu)先通行。該系統(tǒng)中結(jié)合了數(shù)學中“模糊控制”累積計數(shù)的原理, 以美國ATMEL公司AT89S51單片機為控制芯片，提出了基于單片機的交通控制系統(tǒng)設(shè)計方案。
AT89S51單片機的交通燈控制系統(tǒng)由AT89S51單片機、交通燈顯示、LED倒計時、車流量檢測及調(diào)整、違規(guī)檢測、緊急處理、時間模式手動設(shè)置等模塊組成。系統(tǒng)除基本交通燈功能外，還具有通行時間手動設(shè)置、可倒計時顯示、急車強行通過、車流量檢測及調(diào)整、交通異常狀況判別及處理等相關(guān)功能。

關(guān)鍵詞：交通控制，傳感檢測，AT89S51

System based on single chip microcomputer intelligent traffic control
 
Abstract: The purpose of the design is to design which is practical and high performance. Better performance of the system and high stability can be achieved crossroads of urban and rural traffic control and emergency situations can manually switch the lights for special vehicles priority. The system combines the mathematics of "fuzzy control" principle of cumulative counts with the United States ATMEL AT89S51 microcontroller control chip, putting forward the traffic control system design scheme based on single chip
The 8051 single-chip microcomputer control system consists of traffic light 8051 monolithic integrated circuits, light display, LED the countdown, inspection and adjustment, traffic violation detection, emergency handling, time mode manual settings and other modules. System besides basic traffic lights function outside, still has passage of time manual settings, but countdown show, the anxious car traffic to pass, and the adjustment, traffic detection and treatment abnormal situation discriminate related functions.
Keywords: traffic control, sensor, AT89S51
 
目    錄
摘要 II
1  緒   論 1
1.1交通控制存在的問題 1
1.2單片機交通控制系統(tǒng)主要研究的內(nèi)容 1
2 單片機交通控制系統(tǒng)總體設(shè)計 2
2.1單片機交通控制系統(tǒng)的通行方案設(shè)計 2
2.2單片機交通控制系統(tǒng)的功能要求 2
3 系統(tǒng)硬件電路的設(shè)計 3
3.1系統(tǒng)硬件總電路構(gòu)成及原理 3
3.1.1系統(tǒng)硬件電路構(gòu)成 4
3.1.2系統(tǒng)工作原理 4
3.2硬件介紹及連接 2
3.2.1 AT89S51芯片最小系統(tǒng) 2
3.2.2車流量檢測電路及模擬 3
3.2.3違規(guī)檢測電路及模擬 5
3.2.4其它器件 5
4 系統(tǒng)軟件程序的設(shè)計 9
結(jié)束語 13
致  謝 14
參考文獻 14