最后，对基于DSP的交通信号控制器进行了软硬件设计。
Finally, the traffic signal controller based DSP is designed, the hardware and software designs are presented.
文章主要是采用西门子公司的可编程逻辑控制器PLC - 200来实现交通信号灯的控制。
In the paper, traffic signal light is controlled by PLC-200 by using programming logic controller of Siemens company.
这种做法可降低交叉口信号控制器所需的内存等计算资源，实现低成本自适应智能交通信号网络化控制。
It means traffic signal controllers only require less memory and processing power, that is to say "control on demand" which realizes low-cost self-adaptive intelligent traffic signal control.
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