石镓吉：行人过街手动交通灯控制模块的设计
Street pedestrian traffic lights manually control module design
Abstract
The design is to address social development as the road carrying an overload of cases, the
design of a new traffic control system. With the people's level of consumption continued increase
in private vehicles continue to increase. More people, fewer cars and more road traffic situation
is already very apparent. Vehicles reflect the increase in the country's overall progress, but also
to the people has brought a number of other negative effects. China is over 1.3 billion population
in the country, to 2006, the volume of motor vehicles retain more than 80 million, while the total
mileage of highways open to traffic only 148,000 km. Static ratio: the 0.5 vehicles per capita, per
capita road only 0.00011 km; road vehicle are occupied about 0.002 km, of which 90 per cent of
the roads and motor vehicles belonging to non-hybrid vehicles and pedestrians. The next few
years, the number of motor vehicles also increased dramatically, carrying overloaded road,
causing traffic accidents increased year by year. Therefore, we need to develop new traffic
control system.
The AT89C51 is designed with a microcontroller design control system of traffic lights,
pedestrian street (A, B Road junction) road traffic. The basic features include: A Road and B
Road sidewalk is a lane, when the A Road pedestrian passage by pedestrians keys (experiments
with switch K0, K1 control) control, A Road pedestrian buttons, in a 15 Seconds after the lights
change the show began, after a green light for pedestrians through to the pedestrian crossing time
as 30 seconds, B Road traffic lights, as the A Road to the changes in traffic lights change. When
no one should be crossing the road when, B Road (lane) display has been a green light. Traffic
light control system to facilitate the pedestrian street at any time when the past; comprehensive
application of principles of SCM, computer theories, computer interface technology, the use of
SCM simulation system, assembly language programming courses, such as the knowledge , A
bottom-up process of modular design. The traffic signal control system to carry out normal
traffic simulation, in special circumstances make traffic run smooth passage.
Key Words： SCM; traffic light control; LED display; hardware design; software design
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2010-06-02
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midmirrorsoul2013-12-12很实用，考虑周到，谢谢楼主分享，受用了~
