In recent years, with the rapid development of science and technology, a microelectronics technology, computer technology and communication technology as the leading information revolution is booming. Computer technology as one of the three, how to effectively combine with the practical application and play its role. SCM as a branch of computer technology, is constantly applied to the actual life, while driving the traditional control detection update. In real-time detection and automatic control of the application system, the microcontroller is often used as a core component, for the specific application of the characteristics of the object, together with other devices to be improved.
The design of the MSP430 microcontroller as the core, external peripheral circuit constitutes the basic circuit, so that the hardware circuit can be adapted to the completion of the control function. In the Keil software in the preparation of C language program, and finally with Proteus software simulation, the basic realization of the intelligent traffic control system simulation. The system can control the red, green and yellow lights in turn by time, and there are inverted seconds function. On this basis, through the sensor on the traffic situation for data collection. The collected data sent to the control center, for analysis and comparison. According to the comparison result, the specific traffic flow is converted into the ratio of the two-phase vehicle traffic size. According to the ratio of conversion to the traffic light time control, so that the traffic signal time can be changed according to traffic flow, improve the intersection of traffic efficiency.
Key words: single chip microcomputer; The traffic light; The countdown display; Sensing detection
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