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PID 的代码
child.c
#include
#include
#include
static void sig_cld();
int
main()
{
pid_t pid;
if (signal(SIGCLD, sig_cld) == -1)
perror("signal error");
if ( (pid = fork()) < 0
daemoninit.c
#include
#include
#include
#include "ourhdr.h"
int
daemon_init(void)
{
pid_t pid;
if ( (pid = fork()) < 0)
return(-1);
else if (pid != 0)
exit(0); /* pare
pipe1.c
#include "ourhdr.h"
int
main(void)
{
int n, fd[2];
pid_t pid;
char line[MAXLINE];
if (pipe(fd) < 0)
err_sys("pipe error");
if ( (pid = fork()) < 0)
err_sys("fork error");
else if (pid >
daemoninit.c
#include
#include
#include
#include "ourhdr.h"
int
daemon_init(void)
{
pid_t pid;
if ( (pid = fork()) < 0)
return(-1);
else if (pid != 0)
exit(0); /* pare
orphan.c
#include
#include
#include
#include
#include "ourhdr.h"
static void sig_hup(int);
static void pr_ids(char *);
int
main(void)
{
char c;
pid_t pid;
pr_
chap1_20.m
%PID Controler with Partial differential
clear all;
close all;
ts=20;
sys=tf([1],[60,1],'inputdelay',80);
dsys=c2d(sys,ts,'zoh');
[num,den]=tfdata(dsys,'v');
u_1=0;u_2=0;u_3=0;u_4=0;u_5=0;
chap2_8.m
%PID Controler (2001/9/6)
close all;
ts=0.25;
sys=tf(1,[10,2,0]);
dsys=c2d(sys,ts,'z');
[num,den]=tfdata(dsys,'v');
u_1=0;u_2=0;
y_1=0;y_2=0;
x=[0,0,0]';
error_1=0;
for k=1:1:1000
chap7_15m.m
function [u]=pid_aw1f1(u1,u2,u3,u4)
e=u2;
un=u3;
us=u4;
M=2;
switch M
case 1 %PID
u=e;
case 2 %Anti-windup PID
umin=0;
umax=10;
ua=(umin+umax)/2;
if
chap7_15m.m
function [u]=pid_aw1f1(u1,u2,u3,u4)
e=u2;
un=u3;
us=u4;
M=2;
switch M
case 1 %PID
u=e;
case 2 %Anti-windup PID
umin=0;
umax=10;
ua=(umin+umax)/2;
if
chap2_8.m
%PID Controler (2001/9/6)
close all;
ts=0.25;
sys=tf(1,[10,2,0]);
dsys=c2d(sys,ts,'z');
[num,den]=tfdata(dsys,'v');
u_1=0;u_2=0;
y_1=0;y_2=0;
x=[0,0,0]';
error_1=0;
for k=1:1:1000