摘要
为了实现对狭窄路段交通拥堵智能控制和调度,进行控制系统优化设计,提出基于FPGA的狭窄路段交通拥堵智能控制系统设计方案。用嵌入式VXI总线模块技术和DSP集成信号处理技术进行车流量数据分析和信号调理,结合GPS定位和无线网络技术进行交通自组织网络设计,在ARM Cortex-M3内核中进行控制系统的嵌入式开发,采用模块化设计和集成电路设计相结合方法实现系统硬件开发。采用FPGA可编程逻辑芯片作为控制系统的核心处理芯片,进行狭窄路段交通拥堵控制信号的高频放大、正交解调和混频处理,实现控制系统集成电路设计。系统测试结果表明,采用该系统进行交通拥堵智能控制,能降低拥堵程度,提高通行能力,系统的可靠性较好。
In order to realize the intelligent control and scheduling of the traffic congestion on narrow road, the optimiza- tion design of the control system is performed, and a design scheme of the FPGA-based intelligent control system for traffic con- gestion on narrow road is proposed. The embedded VXI bus module technology and DSP integrated signal processing technology are used to conduct the traffic flow data analysis and signal conditioning, and combined with the GPS positioning technology and wireless network technology to design the vehicular Ad Hoe networks. The embedded development of the control system is car- ried out in ARM Cortex-M3 kernel. The method combining modular design and integrated circuit design is adopted to realize the system hardware development. The FPGA programmable logic chip is taken as the core processing chip of the control system to perform high-frequency amplification, quadrature demodulation and frequency mixing processing for the control signal of traffic congestion on narrow road, so as to realize the integrated circuit design of the control system. The system test results show that the system can realize the traffic congestion intelligent control, reduce the congestion degree and improve the traffic capacity, and has high reliability.
出处
《现代电子技术》
北大核心
2017年第24期124-126,130,共4页
Modern Electronics Technique
基金
国家自然科学基金资助项目(61263024)
