--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/brewco/simulator.c Fri Nov 27 22:56:00 2015 +0100
@@ -0,0 +1,107 @@
+/*****************************************************************************
+ * Copyright (C) 2015
+ *
+ * Michiel Broek <mbroek at mbse dot eu>
+ *
+ * This file is part of the mbsePi-apps
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * mbsePi-apps is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with ThermFerm; see the file COPYING. If not, write to the Free
+ * Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *****************************************************************************/
+
+#include "brewco.h"
+#include "simulator.h"
+
+#ifdef USE_SIMULATOR
+
+extern int my_shutdown;
+extern int debug;
+extern sys_config Config;
+
+int SIM_hlt_value = 0;
+int SIM_mlt_value = 0;
+
+
+#ifdef HAVE_WIRINGPI_H
+PI_THREAD (my_simulator_loop)
+#else
+void *my_simulator_loop(void *threadid)
+#endif
+{
+ time_t now, last = (time_t)0;
+ int seconds = 0;
+// double hlt_heat_transfer, mlt_heat_transfer;
+// double vhc_air = 0.00121, vhc_water = 4.1796;
+
+ syslog(LOG_NOTICE, "Thread my_simulator_loop started");
+ if (debug)
+ fprintf(stdout, "Thread my_simulator_loop started\n");
+
+ /*
+ * Heater and cooler have the air temperature
+ */
+ Config.simulator->hlt_heater_temp = Config.simulator->mlt_heater_temp = Config.simulator->room_temperature;
+
+ for (;;) {
+ if (my_shutdown)
+ break;
+
+ now = time(NULL);
+ if (now != last) {
+ last = now;
+ /*
+ * Each second
+ */
+ seconds++;
+
+ /*
+ * First calculate the heat loss for the HLT and MLT liquids.
+ * Then decrease both liquid temperatures.
+ */
+
+ /*
+ * If heating, calculate the heating element temperature.
+ * If not heating, shift towards the liquid temperature.
+ */
+
+ /*
+ * Shift the liquid temperature towards the heating elements temperature,
+ * but never higher then 100 degrees celcius.
+ */
+
+ /*
+ * If heating, calculate temperature of the heating plate. If heating is off but
+ * the plate is warmer then the air, calculate the cooling down temperature.
+ * Finally, calculate the new air and plate temperature.
+ */
+
+// syslog(LOG_NOTICE, "air=%.3f beer=%.3f heater=%.3f cooler=%.3f", simulator->air_temperature, simulator->beer_temperature,
+// simulator->s_heat_temp, simulator->s_cool_temp);
+
+// if (debug)
+// fprintf(stdout, "sqm_room_air=%f air=%f air_heat_transfer=%f air_change=%f sqm_beer_air=%f beer=%f beer_heat_transfer=%f\n",
+// sqm_room_air, simulator->air_temperature, air_heat_transfer, air_change,
+// sqm_beer_air, simulator->beer_temperature, beer_heat_transfer);
+ }
+ usleep(100000);
+ }
+
+ syslog(LOG_NOTICE, "Thread my_simulator_loop stopped");
+ if (debug)
+ fprintf(stdout, "Thread my_simulator_loop stopped\n");
+ return 0;
+}
+
+
+#endif