《軟件課程設(shè)計(jì)》word版

1、軟件課程設(shè)計(jì)一、 目的1、 掌握C#進(jìn)行程序設(shè)計(jì)的基本思路和方法2、 能利用C#編程實(shí)現(xiàn)簡單的任務(wù)3、 結(jié)合控制系統(tǒng)理論用C#進(jìn)行計(jì)算機(jī)控制仿真二、 設(shè)計(jì)內(nèi)容1、 對一階系統(tǒng)實(shí)現(xiàn)PID算法控制并進(jìn)行仿真，具體功能如下：1） 基本要求：實(shí)現(xiàn)PID算法和一階系統(tǒng)差分方程仿真，PID算法中的四個(gè)參數(shù)和一階系統(tǒng)的參數(shù)都可以通過菜單進(jìn)行設(shè)定，系統(tǒng)對階越函數(shù)的響應(yīng)以圖形方式實(shí)時(shí)顯示在窗口中。2） 附加功能：將系統(tǒng)的時(shí)間響應(yīng)數(shù)據(jù)保存到數(shù)據(jù)庫中，具體應(yīng)包括下列屬性：時(shí)間，輸出值。將系統(tǒng)的歷史響應(yīng)重現(xiàn)。使用Teechart控件作為顯示輸出。三、 計(jì)劃1、熟悉了解C#要包括C#、界面設(shè)計(jì)、繪圖功能、數(shù)據(jù)庫訪問技術(shù)

2、、ActiveX控件的注冊和使用。2、回顧控制系統(tǒng)原理中的PID算法及PID算法的數(shù)字化。3、實(shí)現(xiàn)PID算法對一階系統(tǒng)的控制并顯示系統(tǒng)的時(shí)間響應(yīng)。4、將系統(tǒng)的時(shí)間響應(yīng)數(shù)據(jù)存儲(chǔ)到數(shù)據(jù)庫中，然后重現(xiàn)整個(gè)響應(yīng)。五、 圖形界面及代碼using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;namespace Wi

3、ndowsFormsApplication3 public partial class Form1 : Form private Form2 form2; public PID pid; public struct PID public double kp, ki, kd, T1, deltat, startpoi, endpoi, lasterror, preverror, sumerror, setpoint; / public PID pid; /public double data=new double20000; public Form1() InitializeComponent(

4、); private void Form1_Load(object sender, EventArgs e) private void button1_Click(object sender, EventArgs e) /double c; /PID pid; pid.kp = Convert.ToDouble(textBox1.Text); pid.ki = Convert.ToDouble(textBox2.Text); pid.kd = Convert.ToDouble(textBox3.Text); pid.T1 = Convert.ToDouble(textBox4.Text); p

5、id.deltat = Convert.ToDouble(textBox5.Text); pid.startpoi = Convert.ToDouble(textBox6.Text); pid.endpoi = Convert.ToDouble(textBox7.Text); this.Hide(); form2 = new Form2(); form2.Show(); MessageBox.Show("您¨²好?，ê?歡?迎®-使º1用®?本À?PID控?制?時(shí)º¡À域®&

6、#168;°仿¤?真?軟¨¨ª件t！ê?"); /MessageBox.Show("successful!"); private void button2_Click(object sender, EventArgs e) this.Hide(); private void 歷史查詢ToolStripMenuItem_Click(object sender, EventArgs e) form2 = new Form2(); form2.Show(); form2.ReadDataRec(pid); pr

7、ivate void 修改參數(shù)ToolStripMenuItem_Click(object sender, EventArgs e) pid.kp = Convert.ToDouble(textBox1.Text); pid.ki = Convert.ToDouble(textBox2.Text); pid.kd = Convert.ToDouble(textBox3.Text); pid.T1 = Convert.ToDouble(textBox4.Text); pid.deltat = Convert.ToDouble(textBox5.Text); pid.startpoi = Conv

8、ert.ToDouble(textBox6.Text); pid.endpoi = Convert.ToDouble(textBox7.Text); this.Hide(); form2 = new Form2(); form2.Show(); private void 退出ToolStripMenuItem_Click(object sender, EventArgs e) this.Close(); private void 修改查詢ToolStripMenuItem_Click(object sender, EventArgs e) pid.startpoi = Convert.ToDo

9、uble(textBox6.Text); pid.endpoi = Convert.ToDouble(textBox7.Text); this.Hide(); form2 = new Form2(); form2.Show(); 當(dāng)按下確定的時(shí)候：using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;

10、namespace WindowsFormsApplication3 public partial class Form2 : Form private Form1 form1; /private Graphics gx; public struct PID public double kp, ki, kd, T1, deltat, startpoi, endpoi, lasterror, preverror, sumerror, setpoint; public PID pid; private Point P0; private Point P1; public double Xnt =

11、0, Ynt = 0; public double Data=new double 20000; public Form2() InitializeComponent(); private void Form2_Load(object sender, EventArgs e) pid.kp = 200; pid.ki = 1; pid.kd = 1; pid.setpoint = 10; pid.T1 = 0.0001; pid.deltat = 40; P0.X = 260; P0.Y = 260; /Pen thepen; private void 返回Click(object sende

12、r, EventArgs e) this.Hide(); form1 = new Form1(); form1.Show(); private void ReadDataRec(PID p) Graphics g; Pen thepen = new Pen(Color.Red, 2); Form2.Data1.Recordset.MoveFirst(); for (int i = 1; i <= p.startpoi; i+) Form2.Data1.Recordset.MoveNext(); for (int i = 1; i <=p.endpoi- p.startpoi; i+

13、) Datai=Form2.Data1.Recordset.Fields("value"); Form2.Data1.Recordset.MoveNext(); Form1.TChart1.AddSeries (scLine); Form1.TChart1.Series(0).Clear(); for(int i=1;i<=p.endpoi-p.startpoi;i+) double j=i+p.startpoi; P1.X=(int) (j/60); P1.Y=(int) Datai-1; g.DrawLine(thepen,P0,P1); P0=P1; if(i%

14、20=0) Form2.TChart1.AutoRepaint = false; Form2.TChart1.Series(0).Add(Datai-1,i,BackColor); Form1.TChart1.AutoRepaint = true; Form1.TChart1.Repaint(); label1.Text="x="+ j; label2.Text="y="+Datai-1; timer1_Tick(); protected override void OnPaintAndWriteDataRec(PaintEventArgs e) Dat

15、a1.Recordset.MoveFirst(); while (!Data1.Recordset.Eof() Data1.Recordset.Delete(); Data1.Recordset.MoveNext(); for (int i = 1; i <= 20000; i+) Xnt = Compute_PID(pid, Ynt); Datai - 1 = Last_Val(Ynt, Xnt, pid); Data1.Recordset.AddNew(); Data1.Recordset.Fields("time") = i; Data1.Recordset.F

16、ields("value") = Datai - 1; Data1.Recordset.Update(); TChart1.AddSeries(scLine); TChart1.Series(0).Clear(); for (int i = 1; i <= 20000; i+) if (i % 20 = 0) Form2.TChart1.AutoRepaint = true; Form2.TChart1.Series(0).Add(Datai - 1, i, BackColor); Form1.TChart1.AutoRepaint = true; Form1.TCh

17、art1.Repaint(); label1.Text = "x=" + j; label2.Text = "y=" + Datai - 1; timer1_Tick(); private double Compute_PID(PID p, double nextpoint) double derror, error; error = p.setpoint - nextpoint;/偏?差? p.sumerror = error + p.sumerror;/積y分¤? derror = p.lasterror - p.preverror;/當(dāng)&

18、#204;¡À前¡ã微¡é分¤? p.preverror = p.lasterror; p.lasterror = error; return (p.kp * error + p.ki * p.sumerror + p.kd * derror); private double Last_Val(double Xt,double Yt, PID p) return (p.deltat / p.T1 * Xt - (p.deltat / p.T1 - 1) * Yt); private void timer1_Tick(obje

19、ct sender, EventArgs e) /定¡§時(shí)º¡À器¡Â每?0.01s自Á?己o調(diào)Ì¡Â用®?一°?次ä?，ê?在¨²此ä?相¨¤當(dāng)Ì¡À于®¨²延¨®時(shí)º¡À作Á¡Â用®? private void checkBox1_CheckedChanged(object sender, EventArgs e) TChart1.Panel.Gradient.Visible = Check1.Value; private void checkBox2_CheckedChanged(object sender, EventArgs e) TChart1.Aspect.View3D = Check2.Val