交通信號控制系統(tǒng)設(shè)計(jì)


頁數(shù)：47 字?jǐn)?shù)：21510



目 錄
摘 要 I
Abstract II
第1章 緒論 1
第2章 設(shè)計(jì)要求 2
第3章 十字路口通行路況分析 3
第4章 PLC介紹 4
4.1 關(guān)于PLC 4
4.2 PLC用于對交通信號燈的控制 4
4.3 PLC的基本特點(diǎn) 4
4.4 PLC的分類 9
4.5 PLC的工作過程 9
第5章 、觸摸屏技術(shù) 12
5.1 觸摸屏技術(shù)的發(fā)展 12
5.2 觸摸屏原理 12
5.3 觸摸屏控制器特征 12
第6章 Easy Builder 500 簡介 20
6.1 Easy Manager 20
6.2 PLC Address View 21
6.3 Easy Builder 22
第7章 人機(jī)界面程序設(shè)計(jì) 23
7.1 程序設(shè)計(jì)環(huán)境 23
7.2 界面設(shè)計(jì)方案 23
7.3 界面設(shè)計(jì) 24
7.3.1 工程創(chuàng)建 24
7.3.2 窗口介紹 24
7.3.3 人機(jī)界面設(shè)計(jì) 25
7.4 PLC 連接 32
第8章 調(diào)試 36
總 結(jié) 38
致 謝 39
參 考 文 獻(xiàn) 40




摘 要
PLC可編程序控制器是以微處理器為基礎(chǔ)，綜合了計(jì)算機(jī)技術(shù)、自動控制技術(shù)和通訊技術(shù)發(fā)展而來的一種新型工業(yè)控制裝置。它具有結(jié)構(gòu)簡單、編程方便、可靠性高等優(yōu)點(diǎn)，已廣泛用于工業(yè)過程和位置的自動控制中。據(jù)統(tǒng)計(jì)，可編程控制器是工業(yè)自動化裝置中應(yīng)用最多的一種設(shè)備。專家認(rèn)為，可編程控制器將成為今后工業(yè)控制的主要手段和重要的基礎(chǔ)設(shè)備之一，PLC、機(jī)器人、CAD/CAM將成為工業(yè)生產(chǎn)的三大支柱。由于PLC具有對使用環(huán)境適應(yīng)性強(qiáng)的特性，同時(shí)其內(nèi)部定時(shí)器資源十分豐富，可對目前普遍使用的“漸進(jìn)式”信號燈進(jìn)行精確控制，特別對多岔路口的控制可方便地實(shí)現(xiàn)。因此現(xiàn)在越來越多地將PLC應(yīng)用于交通燈系統(tǒng)中。同時(shí)，PLC本身還具有通訊聯(lián)網(wǎng)功能，將同一條道路上的信號燈組成一局域網(wǎng)進(jìn)行統(tǒng)一調(diào)度管理，可縮短車輛通行等候時(shí)間，實(shí)現(xiàn)科學(xué)化管理。在該設(shè)計(jì)中，還引入F940觸摸屏模擬十字路口紅綠燈閃亮及車輛通行，十分形象地顯示出了PLC在交通燈系統(tǒng)中的實(shí)際應(yīng)用
本文介紹了PLC聯(lián)機(jī)在十字路口交通燈實(shí)驗(yàn)控制模型中的應(yīng)用以及與觸摸屏的功能特點(diǎn)。PLC作為系統(tǒng)的控制單元在參數(shù)進(jìn)行人機(jī)交互的時(shí)候有一定欠缺，而觸摸屏作為人機(jī)接口正好彌補(bǔ)了PLC的這個(gè)欠缺。本次設(shè)計(jì)的實(shí)驗(yàn)?zāi)Ｐ徒缑嬗押?，簡單直觀，便于操作。在此設(shè)計(jì)中，可以通過觸摸屏直觀地控制PLC，與此同時(shí)可以在觸摸屏上觀察各路口交通燈指示狀態(tài)。依靠車輛計(jì)數(shù)儀，利用神經(jīng)網(wǎng)絡(luò)等技術(shù)對交通系統(tǒng)進(jìn)行全局優(yōu)化調(diào)度，并在此基礎(chǔ)上形成調(diào)度指令，利用模糊控制的方法實(shí)現(xiàn)交叉口的紅綠燈控制。交通信號系統(tǒng)控制是智能交通系統(tǒng)的一個(gè)重要部分，不僅可以檢測到車流量等交通信息參數(shù)，調(diào)節(jié)路口綠信號配比，變化交通限行、禁行等指路標(biāo)志，還可以根據(jù)系統(tǒng)連接的數(shù)據(jù)倉完成與交通參與者之間的信息交換，向交通參與者顯示道路交通信息、停車信息，提供給交通參與者合理的行駛路線，以達(dá)到均衡道路交通負(fù)荷的主動的控制策略。從而真正實(shí)現(xiàn)交通的智能化控制，為人們的日常生活提供方便。

關(guān)鍵詞：觸摸屏 PLC 人機(jī)界面
Abstract
The programmable preface in PLC controller is a kind of new industry controls the device, it regard microprocessor as the foundation, synthesizing the calculator technique, automatic control technique to develop with the communication technique. It has the structure simply, the programming convenient, and the reliable high, which has widely used in the commercial run and in the position of automatic control。Statistics have indicated, the programmable controller is has been used most in the industrial automation installment .The expert believed that, the programmable controller will become the main method controller and important foundation equipment. PLC, ROBOT, CAD/CAM will become the three big props in industrial production. Because PLC has strong adaptability to environment, and its internal timer resources are extremely rich, which may control the signal light accuracy at present, especially to the multi-road fork control. Therefore PLC is used more and more in the traffic light system now。At the same time, PLC itself also has the communication networking function, carries on the identical strip path on signal light composition local area network the centralized dispatcher management, may reduce the vehicles general waiting time, the realization scientific style management.
The paper introduces the property and function of touch screen combined with PLC. And their application in The PLC experiment controls models of Traffic Light at the crossroad. As the human-computer interface, the Touch Screen makes the system easily operated and handled. In this design, we can control PLC intuitively through touch screen, and meanwhile can observe the state of crossing traffic light on touch screen.
The dependence on vehicles calculating instrument, using neural network technologies to dispatch to the transportation system, so it can form the dispatch instruction using fuzzy control method to realize the road intersection traffic light control. The traffic signal systems control is an important part in intelligence transportation system。Not only it may examine transportation information parameters on the traffic flow magnitude, adjust street intersection green signal allocated proportion, change transportation limits and endures line ,and refer to the road sign to exchange information with the transportation participant’s. Demonstrated the road traffic information, the parking information, and travel route, So that balanced road traffic Thus realizes the transportation intellectualized control truly, provides the convenience for people's daily life.

Key Words：Touch Screen PLC human-computer interface