基于GPS和SD卡存储的交通信号采集系统
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摘 要：针对当前无法实现交通信号灯位置和实时状态信息的自动化管理的问题，本系统选用STC12C5A60S2为主控芯片，配合Neo5Q GPS定位模块，利用PT2262/2272无线收发芯片和便携安全的SD卡，设计了一种新型对交通灯方位及信号状态的实时信息采集解决方案。该系统可以实现对交通灯所处位置和信号灯点亮的时间进行实时确定，通过SD卡模块将数据存储到SD卡中，电路简单，在原有设施上即可实现。实验结果显示，系统实时性好，存取方便，利于数据的读取分析。该系统的实现对于交通状态信息数据的采集、分析有着重要意义。
关键词：交通灯；GPS；SD卡；单片机
DOI：10.15938/j.jhust.2017.03.005
中图分类號： TP274+.2
文献标志码： A
文章编号： 1007-2683（2017）03-0025-06
Abstract：In terms of the issues where traffic lights′ positions and traffic status information cannot be managed automatically， in this system，STC12C5A60S2 microcontroller can be used as the master chip in conjunction with the GPS position module，Neo5Q. The wireless transceiver module， PT2262/2272 and the portable installing SD card are used to design a new type of realtime information acquisition solution for positions of traffic lights and signal status. And the system can determine the traffic lights′ positions and the process of lighting in a real time. Then the data will be stored in SD card by the SD card module. Furthermore， the equipment can be implemented on existing facilities with a simple circuit. According to the result of experiments， the system contains a convenient storage， works in a real time and it is also advisable to help with the data reading and analysis. Thus， implementation of the system is of great significance to acquire and analyze the tra...
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