针对中小城市的交通信号控制系统的研究与设计

发布时间：2018-01-11 15:10

本文关键词：针对中小城市的交通信号控制系统的研究与设计　出处：《北京交通大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着城市的快速发展,现代智能交通信号控制系统要求信号机中各通信模块的设计具有强大的可扩充性,以解决逐步完善的智能交通信号控制系统的需要。在这种解决方案中,与信号机本地主控制单元通讯的模块及设备很多,且信号机内部各板卡之间也需要大量、频繁的数据交换。一般来说,这需要功能强大、资源丰富的嵌入式系统来实现,这必然导致高昂的设备成本,所以采取这样大型的交通信号控制系统对于经济实力较为薄弱的中小规模城市是不可能的。但是城市的加速发展导致以往价格较低的设备系统已经不能满足现在的交通压力,于是全面更新信号机设备,建立功能完善、智能性较强且适合中小规模城市交通特点的交通信号控制系统已然成为一种必须,因此针对中小城市的交通信号控制系统进行研究与设计有着很强的必要性和重要性。本论文围绕在针对中小城市的交通信号控制系统进行的研究与设计这一项目中展开研究,主要工作有如下几点：第一,以往大多中小规模城市采用的都是单机运行的信号机,其智能性极差,此次研究与设计不但扩展了信号机的通信模式如TCP/IP通信、232通信、485通信以及USB通信,并设计了有着地方特色的行人触动按钮。简言之,通信模式的扩展和新增的功能模块极大地增强了交通信号控制系统的智能性。第二,设计实现了自己的通讯软件,其优点在于用51语言和汇编语言混合编制实现了新增的通信模式和应用。这样在增强软件智能性的同时又提高了软件的运行速度。第三,研究参考了交通信号控制机与上位机之间数据通讯的国标协议,并结合中小规模城市如忻州当地实际的交通状况及特点,拟定了适合像忻州这样中小规模城市交通特点的交通信号控制机与上位机之间的数据通讯协议。第四,研发出了近百台交通信号控制机,目前,这些信号机已经安放在了忻州市7451工程新建的所有路段,试行效果非常理想,确实缓解了忻州市交通道路的紧张形势,彻底解决了当地的交通压力。
[Abstract]:With the rapid development of the city, the modern intelligent traffic signal control system requires the design of each communication module in the signal generator to be powerful and expandable. In this solution, there are a lot of modules and equipments to communicate with the local main control unit of the signal generator, and a large number of boards and cards within the signal machine also need to meet the needs of the gradual improvement of the intelligent traffic signal control system. Frequent data exchange. In general, this requires powerful, resource-rich embedded systems to achieve, which will inevitably lead to high equipment costs. Therefore, it is impossible to adopt such a large traffic signal control system for small and medium-sized cities with relatively weak economic strength. However, the acceleration of urban development has led to the past low price equipment system has been unable to meet the present. Traffic pressure. Therefore, it is necessary to update the signal equipment and establish a traffic signal control system with perfect function, strong intelligence and suitable for the traffic characteristics of small and medium-sized cities. Therefore, it is necessary and important to study and design the traffic signal control system in small and medium cities. This thesis focuses on the research and design of traffic signal control system in small and medium-sized cities. The main work is as follows: First, most of the small and medium-sized cities used in the past are single-machine running signal, its intelligence is extremely poor, this research and design not only extended the communication mode of the signal machine such as TCP/IP communication. 232 communication communication and USB communication, and designed a pedestrian button with local characteristics. In short. The expansion of communication mode and new function modules greatly enhance the intelligence of traffic signal control system. Second, the design and implementation of their own communication software. The advantage is that the new communication mode and application are realized with the combination of 51 language and assembly language, which not only enhances the intelligence of the software, but also improves the running speed of the software. Thirdly, the study refers to the national standard protocol of data communication between the traffic signal control machine and the upper computer, and combines the actual traffic situation and characteristics of small and medium-sized cities such as Xinzhou. The data communication protocol between the traffic signal control computer and the upper computer which is suitable for the traffic characteristics of small and medium-sized cities such as Xinzhou is worked out. In 4th, nearly 100 traffic signal control machines were developed. At present, these signal machines have been installed in all new sections of Xinzhou 7451 project, and the trial results are very satisfactory. It really alleviated the tense situation of Xinzhou traffic road and solved the local traffic pressure thoroughly.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491.51;TP273

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