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/*
-Course-
DAT300: Data-driven support for cyber-physical systems
-Project-
Intrusion Detection for Industrial Control Networks
-Group 8-
Hassan Ghalayini - hassang@student.chalmers.se
Malama Kasanda - malama@student.chalmers.se
Vaios Taxiarchis - vaios@student.chalmers.se
Modified by Robin Krahl <guskraro@student.gu.se>, Group 3:
- Write sensor readings and distance to text files
- Take the arguments N, L, r from argc
- Formatting
*/
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include "midbro.h"
int main(int argc, char **argv)
{
clock_t begin;
int l=0;
double t=30;
if (argc != 4) {
fprintf(stderr, "Usage: %s N L r\n", argv[0]);
fprintf(stderr, " Example values: N = 1000, L = 500, r = 18\n");
fprintf(stderr, "Wrong argument count. Aborting.\n");
return 1;
}
int N = atoi(argv[1]);
int L = atoi(argv[2]);
int r = atoi(argv[3]);
/* Arrays and variables */
int sL=86336;
double s[sL];
double U[L][r];
double X[L];
double product_Xt_P_X;
double product_Xt_X;
int i=0,j=0,c=0,d=0,k=0;
double sum=0.0,dist=0.0;
start_data_capture();
/* File Descriptor to read projection matrix from U.txt */
FILE *file;
char ch='a';
int flag=0;
file=fopen("U.txt", "r");
if (!file) {
fprintf(stderr, "Could not open U.txt. Aborting.\n");
return 1;
}
printf(" >Reading U[%dx%d] matrix from .txt file...",L,r);
/* Read all values to an array */
for(i=0;i<L;i++)
{
if(flag==1){break;}
for(j=0;j<r;j++)
{
/* Use %lf format specifier, to read doubles with scanf */
if(!fscanf(file,"%lf",&U[i][j]))
break;
/* Break the inner loop and set flag=true */
ch = getc(file);
if(ch == EOF)
{
flag=1;
break;
}
/* Break the inner loop when find \n */
else if(ch - '0'== -38)
break;
}
}
/* Close File Descriptor */
fclose(file);
printf("Completed!\n");
for(i=0;i<N;i++)
{
s[i] = (double)request_value();
}
int p=1;
X[0]=0;
for(i=N-L+1;i<N;i++)
{
X[p] = s[i];
sum = sum + X[p]*X[p];
p++;
}
product_Xt_X = sum;
sum = 0;
FILE *file_sensor = fopen("sensor.dat", "w");
FILE *file_distance = fopen("distance.dat", "w");
begin = clock();
while(1)
{
int value = request_value();
s[p] = (double) value;
fprintf(file_sensor, "%d\n", value);
/* Xt[1xL] * X[Lx1] */
product_Xt_X = product_Xt_X - X[0]*X[0] + s[p]*s[p];
/* Generate new test vector Xtest */
for(j=0;j<L-1;j++)
{
X[j] = X[j+1];
}
X[L-1] = s[p];
product_Xt_P_X = 0;
/* P_1 = Xt[1xL] * U[Lxr] */
for (d=0;d<r;d++)
{
for (k=0;k<L;k++)
{
sum = sum + X[k]*U[k][d];
}
product_Xt_P_X = product_Xt_P_X + sum*sum;
sum = 0;
}
dist = (product_Xt_X - product_Xt_P_X)/L;
p++;
printf("%lf\n",dist);
fprintf(file_distance, "%lf\n", dist);
fflush(file_sensor);
fflush(file_distance);
}
fclose(file_sensor);
fclose(file_distance);
printf(" [Program exits]\n");
/* Stop timer */
clock_t end = clock();
/* Print the time elapsed */
printf("Time elapsed: %f milliseconds\n", 1000*((double)(end - begin) / CLOCKS_PER_SEC));
return 0;
}
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