First of all , we have established models of microcosmic traffic flow , such as : car _ send out model , car _ dynamical model , following model , changing driveway model , queuing model , toll station model , adding and diverting traffic flow model , car _ arriving model , model of basic road , net of road model , etc . then i have programmed modules of all models , and determined the method of system simulation 本文主要立足與高速公路微觀交通流仿真系統的建模與實現,首先確立微觀交通流各仿真模型,如:發車模型,車輛運動模型,跟馳模型,換車道模型,排隊模型,收費站模型,匝道合流與分流模型,車輛到達消失模型,基本道路模型,路網仿真模型等。然后編制各模型的實現模塊,確定系統的仿真方法。
Its concrete method is : firstly , precondition the program code . secondly , collect information which will be put use to simulate . lastly , make use of the information collected to simulate to compute , and associate with the controlled object ’ s program module to carry out the multi - cyclical closed - loop simulation 它的實現過程是:先對控制計算程序代碼進行預處理,接著提取程序代碼的結構信息和變量信息,最后利用提取的信息模擬代碼做控制計算,并調用受控對象程序模塊,得到反饋信號變量的實時值,實現多周期閉環的控制計算仿真。
The paper includes the contents as follows : the second chapter introduces the basic theory of bp neural network , chapter 3 puts forward a solution named divide - assemble , chapter 4 introduces the preprocessing of input population , chapter 5 introduces the basic theory of genetic algorithms , chapter 6 discusses gdr - ga algorithms , 7 part introduces the processing of atm band - width distribution dynamically and gives several program modules among them . chapter 8 introduces the interface , running and results about the software system , the last chapter summarizes research work of this dissertation and further researches arc prospected 本文主要包括以下內容:第2部分闡述bp神經網絡基本理論,第3部分介紹了拆分組裝方法,第4部分主要介紹了bp神經網絡輸入樣本的預處理,第5部分介紹了遺傳算法的發展及其基本理論,第6章介紹的是最速梯度? ?遺傳算法,第7部分介紹了atm帶寬動態分配過程、子網與總網的學習過程和其中的一些關鍵程序模塊,第8部分介紹的是該系統界面和運行情況,最后一部分總結了論文所做的工作和進一步工作設想。
The system includes four program modules : data - input module , data - processing module , data - display module and standard part maker module . the four are linked by data - processing module . the parametric data used in making standard parts and the data displayed in the graphical interfaces are scored in the database of server 本系統共分為了四個程序模塊,分別是數據輸入模塊、數據處理模塊、數據顯示模塊和標準件生成模塊,以數據處理模塊為核心,實現各模塊間的聯系。
Nowadays an enormous change has occurred in both the embedded operating system and its application program module , into which the underlying ideas and principles of component design have been dynamically introduced . in contrast with the traditional one characterized by a fixed architecture , the updated embedded system features flexible structure 嵌入式操作系統及其應用程序模型已經發生了很大變化,組件化的設計思想和設計原則,已經被積極地引入到了嵌入式系統中來,與傳統的嵌入式系統相比,體系結構由固定變為靈活。
Then , by programming with c + + , this thesis achieved partly some application examples of remote control network system which are based on this research , including main program module which took charge of initializing system and remote waking up the console of the controlled and getting the hardware information of the controlled , directive text information setup module which took charge of transmitting text and data , command execution module which took charge of executing simple control command , real time oversight module which took charge of transmitting the real time video of the console of the controlled and feeding information back to the console in charge 之后本文利用c + +編寫程序,來實現部分基于本研究的遠程控制系統中的一些應用實例,采用了模塊化程序設計,實現了負責系統的初始化、并遠程喚醒對方控制臺、獲取對方的硬件信息等功能的主控程序模塊,完成系統文本信息、數據的傳輸功能的指令文本信息設置模塊,執行簡單的控制指令功能的控制指令執行模塊,傳輸對方控制臺即時運行畫面并將信息反饋給控制端的功能的即時監控模塊。
The structure , function and characteristic with the principle and method of tank gauging system are described . then the structure , principle of the circuit and the main chips of the data processing unit are introduced . after this , the software design of data processing unit including rs - 485 ( modbus ) module , 4 - 20ma analog module , on - off module , rtd module , pulse module , calculation and display module , communication module and neuron chip program module and also the method of resolving the problems which were found at the process of debugging are emphasized 隨后介紹了現場數據處理器的結構,電路原理,所運用的主要芯片;并重點闡述了作者在課題研究中所作的工作,即現場數據處理器軟件的設計包括八個功能模塊: rs - 485 ( modbus )模塊、 4 ? 20ma模擬量采集模塊、開關量處理模塊、 rtd信號采集模塊、頻率量采集模塊、計算和顯示模塊、通訊模塊、 neuron芯片中的程序模塊;以及在課題研究和現場調試過程中遇到的問題及解決辦法。