Daniel Burnham
RFID door access with security camera
Dependencies: EthernetNetIf mbed Camera_LS_Y201 ID12RFID SDFileSystem
Revision 0:5536e07364a7, committed 2011-10-13
- Comitter:
- dburnham6
- Date:
- Thu Oct 13 20:44:31 2011 +0000
- Commit message:
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Camera_LS_Y201.lib Thu Oct 13 20:44:31 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/shintamainjp/code/Camera_LS_Y201/#43358d40f879
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/EthernetNetIf.lib Thu Oct 13 20:44:31 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/donatien/code/EthernetNetIf/#bc7df6da7589
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/FATFileSystem.lib Thu Oct 13 20:44:31 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_unsupported/code/fatfilesystem/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/HTTPClient.lib Thu Oct 13 20:44:31 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/donatien/code/HTTPClient/#d0be6af2d1db
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ID12RFID.lib Thu Oct 13 20:44:31 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/simon/code/ID12RFID/#f04afa911cf5
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SDFileSystem.lib Thu Oct 13 20:44:31 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/simon/code/SDFileSystem/#b1ddfc9a9b25
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Thu Oct 13 20:44:31 2011 +0000
@@ -0,0 +1,174 @@
+#include "mbed.h"
+#include "EthernetNetIf.h"
+#include "HTTPClient.h"
+#include "ID12RFID.h"
+#include "Camera_LS_Y201.h"
+#include "SDFileSystem.h"
+
+#define DEBMSG printf
+#define NEWLINE() printf("\r\n")
+
+#define FILENAME "/local/%08d.jpg"
+LocalFileSystem fs("local");
+Camera_LS_Y201 cam1(p9, p10);
+
+typedef struct work {
+ FILE *fp;
+} work_t;
+work_t work;
+
+ID12RFID rfid(p14); // uart rx
+EthernetNetIf eth;
+HTTPClient http;
+DigitalOut myled(LED1);
+DigitalOut myled2(p20);
+DigitalOut door(p21);
+int tagNum;
+
+bool CheckTag(int tag){
+ HTTPText txt;
+ const char * txtBuffer;
+ char* bufferCopy;
+ char* line;
+
+ // retrieve authorized tag numbers, CSV format
+ HTTPResult r = http.get("http://www.prism.gatech.edu/~dburnham6/tags.txt", &txt);
+ if(r==HTTP_OK){
+ txtBuffer = txt.gets();
+ bufferCopy = const_cast<char *> (txtBuffer); // allow parsing of the text
+ line = strtok(bufferCopy, ","); // separate by commas
+ while (line != NULL) {
+ if(atoi(line) == tag) {
+ return true;
+ }
+ line = strtok(NULL, ",");
+ }
+
+ printf("Tag Not Found.\r\n");
+ }
+ else
+ {
+ printf("HTTP Error %d\n", r);
+ }
+ return false;
+}
+
+/** [from the Camera_LS_Y201 test code]
+ * Callback function for readJpegFileContent.
+ *
+ * @param buf A pointer to a buffer.
+ * @param siz A size of the buffer.
+ */
+void callback_func(int done, int total, uint8_t *buf, size_t siz) {
+ fwrite(buf, siz, 1, work.fp);
+
+ static int n = 0;
+ int tmp = done * 100 / total;
+ if (n != tmp) {
+ n = tmp;
+ DEBMSG("Writing...: %3d%%", n);
+ NEWLINE();
+ }
+}
+
+/** [from the Camera_LS_Y201 test code]
+ * Capture.
+ *
+ * @param cam A pointer to a camera object.
+ * @param filename The file name.
+ *
+ * @return Return 0 if it succeed.
+ */
+int capture(Camera_LS_Y201 *cam, char *filename) {
+ /*
+ * Take a picture.
+ */
+ if (cam->takePicture() != 0) {
+ return -1;
+ }
+ DEBMSG("Captured.");
+ NEWLINE();
+
+ /*
+ * Open file.
+ */
+ work.fp = fopen(filename, "wb");
+ if (work.fp == NULL) {
+ return -2;
+ }
+
+ /*
+ * Read the content.
+ */
+ DEBMSG("%s", filename);
+ NEWLINE();
+ if (cam->readJpegFileContent(callback_func) != 0) {
+ fclose(work.fp);
+ return -3;
+ }
+ fclose(work.fp);
+
+ /*
+ * Stop taking pictures.
+ */
+ cam->stopTakingPictures();
+
+ return 0;
+}
+
+int main() {
+ // init ethernet
+ EthernetErr ethErr = eth.setup();
+ if(ethErr)
+ {
+ printf("Error %d in setup.\n", ethErr);
+ }
+ printf("Setup OK\n");
+
+ // init camera
+ DEBMSG("Camera module");
+ NEWLINE();
+ DEBMSG("Resetting...");
+ NEWLINE();
+ wait(1);
+ if (cam1.reset() == 0) {
+ DEBMSG("Reset OK.");
+ NEWLINE();
+ } else {
+ DEBMSG("Reset fail.");
+ NEWLINE();
+ error("Reset fail.");
+ }
+ wait(1);
+
+ // wait for tag
+ while(1) {
+ if(rfid.readable()) {
+ int tag = rfid.read();
+ printf("RFID Tag number : %d\r\n", tag);
+ if(CheckTag(tag)) {
+ printf("Authorized user confirmed. Unlocking door...\r\n");
+ door = 1;
+ myled = 1;
+ wait(10);
+ door = 0;
+ myled = 0;
+ } else {
+ printf("Unauthorized access tag. Picture for evidence... \r\n");
+ myled2 = 1;
+ char fname[64];
+ snprintf(fname, sizeof(fname) - 1, FILENAME, tag);
+ int r = capture(&cam1, fname); // take a picture
+ if (r == 0) {
+ DEBMSG("[%04d]:OK.", tag);
+ NEWLINE();
+ } else {
+ DEBMSG("[%04d]:NG. (code=%d)", tag, r);
+ NEWLINE();
+ error("Picture failed.");
+ }
+ myled2 = 0;
+ }
+ }
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu Oct 13 20:44:31 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/63bcd7ba4912