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[Industry research] JTXHFANGZHEN DL : 0: 本文在分析城市交通信号控制研究现状和交叉口交通信号控制原理、评价方法的基础上，设计了单交叉口交通信号两级模糊控制系统。分级模糊控制能有效减少模糊规则数，易于提取模糊规则，适合于交通状况复杂的城市交叉口交通信号控制。但它存在难以由人工合理定义全部模糊隶属度函数的问题。为此本文进一步采用遗传算法对两级模糊控制器中模糊隶属度函数进行优化。本文提出的方法具有分级模糊控制的优点，同时可以使模糊隶属度的选取更为合理，获得更好的控制效果。对一个四相位单交叉口，利用MATLAB在不同的交通条件下进行了仿真，并利用交通仿真软件PARAMICS进行了可视化仿真。仿真结果表明该方法能有效降低通行车辆在交叉口的平均等待时间，明显优于传统控制方法-After analyzing the city-traffic developments,the grade crossings control theory its method of evaluation,the paper designs a traffic signal two-stage fuzzy control tem for single intersection.Two-stage fuzzy controller,which is easy to acquire zy rules and can greatly decrease the number of fuzzy rules,is very suitable to plex urban intersection control.But it still presents a difficulty for deciding all the bership functions correctly only by human experience.Therefor,to solve this blem,a technique using genetic algorithm to modify its fuzzy membership ctions is proposed.This method not only possesses the advantages of hierarchical zy control,but also can change its membership functions adaptively to an optimal ing in different traffic situations as well,and in this way the currency power of the an intersection is improved.For a single urban intersection with four-phase, ulation of different traffic condition is processed by using MATLAB.Moreover, ble simulation is proce
Date : 2025-12-16 Size : 305kb User : 刚子
[Industry research] danpianjitongxinfaseji DL : 0: 我所做的单片机串行通信发射机主要在实验室完成,参考有关的书籍和资料，个人完成电路的设计、焊接、检查、调试，再根据自己的硬件和通信协议用汇编语言编写发射和显示程序，然后加电调试，最终达到准确无误的发射和显示。在这过程中需要选择适当的元件，合理的电路图扎实的焊接技术，基本的故障排除和纠正能力，会使用基本的仪器对硬件进行调试，会熟练的运用汇编语言编写程序，会用相关的软件对自己的程序进行翻译，并烧进芯片中，要与对方接收机统一通信协议，要耐心的反复检查、修改和调试，直到达到预期目的。-Abstract: With the rapid development of science and technology in recent years, the application of SCM is the deepening of the same time promote the traditional control detection technologies are increasingly updated. In real-time detection and automatic control of microcomputer application system, the microcontroller is often used as a core component to use only SCM knowledge is not enough, but also according to the specific hardware architecture hardware and software, to be improved. Crossroads shuttle vehicles, pedestrians bustling Dealers lane, walkways, and orderly. Rely on to achieve this orderly order? Rely on automatic command system of traffic lights. Traffic signal control. The system uses the MSC-51 series of microcontrollers the ATSC51 and programmable parallel I/O interface chip 8255A-centric devices to design a traffic light controller, realized according to the actual traffic flow through the 8051 P1 outlet red, the green light to kindle the function traffic light cyc
Date : 2025-12-16 Size : 265kb User : 万利