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/*
* Copyright © 2010 Keith Packard <keithp@keithp.com>
*
* This program 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; version 2 of the License.
*
* This program 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 this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
package altosui;
import java.lang.*;
import java.text.*;
import java.util.HashMap;
import java.io.*;
import altosui.AltosConvert;
import altosui.AltosGPS;
public class AltosRecord {
int version;
String callsign;
int serial;
int flight;
int rssi;
int status;
int state;
int tick;
int accel;
int pres;
int temp;
int batt;
int drogue;
int main;
int flight_accel;
int ground_accel;
int flight_vel;
int flight_pres;
int ground_pres;
int accel_plus_g;
int accel_minus_g;
AltosGPS gps;
double time; /* seconds since boost */
/*
* Values for our MP3H6115A pressure sensor
*
* From the data sheet:
*
* Pressure range: 15-115 kPa
* Voltage at 115kPa: 2.82
* Output scale: 27mV/kPa
*
*
* 27 mV/kPa * 2047 / 3300 counts/mV = 16.75 counts/kPa
* 2.82V * 2047 / 3.3 counts/V = 1749 counts/115 kPa
*/
static final double counts_per_kPa = 27 * 2047 / 3300;
static final double counts_at_101_3kPa = 1674.0;
static double
barometer_to_pressure(double count)
{
return ((count / 16.0) / 2047.0 + 0.095) / 0.009 * 1000.0;
}
public double raw_pressure() {
return barometer_to_pressure(pres);
}
public double filtered_pressure() {
return barometer_to_pressure(flight_pres);
}
public double ground_pressure() {
return barometer_to_pressure(ground_pres);
}
public double filtered_altitude() {
return AltosConvert.pressure_to_altitude(filtered_pressure());
}
public double raw_altitude() {
return AltosConvert.pressure_to_altitude(raw_pressure());
}
public double ground_altitude() {
return AltosConvert.pressure_to_altitude(ground_pressure());
}
public double filtered_height() {
return filtered_altitude() - ground_altitude();
}
public double raw_height() {
return raw_altitude() - ground_altitude();
}
public double battery_voltage() {
return AltosConvert.cc_battery_to_voltage(batt);
}
public double main_voltage() {
return AltosConvert.cc_ignitor_to_voltage(main);
}
public double drogue_voltage() {
return AltosConvert.cc_ignitor_to_voltage(drogue);
}
/* Value for the CC1111 built-in temperature sensor
* Output voltage at 0°C = 0.755V
* Coefficient = 0.00247V/°C
* Reference voltage = 1.25V
*
* temp = ((value / 32767) * 1.25 - 0.755) / 0.00247
* = (value - 19791.268) / 32768 * 1.25 / 0.00247
*/
static double
thermometer_to_temperature(double thermo)
{
return (thermo - 19791.268) / 32728.0 * 1.25 / 0.00247;
}
public double temperature() {
return thermometer_to_temperature(temp);
}
double accel_counts_per_mss() {
double counts_per_g = Math.abs(accel_minus_g - accel_plus_g) / 2;
return counts_per_g / 9.80665;
}
public double acceleration() {
return (accel_plus_g - accel) / accel_counts_per_mss();
}
public double accel_speed() {
double speed = flight_vel / (accel_counts_per_mss() * 100.0);
return speed;
}
public String state() {
return Altos.state_name(state);
}
public static String gets(FileInputStream s) throws IOException {
int c;
String line = "";
while ((c = s.read()) != -1) {
if (c == '\r')
continue;
if (c == '\n') {
return line;
}
line = line + (char) c;
}
return null;
}
public AltosRecord(AltosRecord old) {
version = old.version;
callsign = old.callsign;
serial = old.serial;
flight = old.flight;
rssi = old.rssi;
status = old.status;
state = old.state;
tick = old.tick;
accel = old.accel;
pres = old.pres;
temp = old.temp;
batt = old.batt;
drogue = old.drogue;
main = old.main;
flight_accel = old.flight_accel;
ground_accel = old.ground_accel;
flight_vel = old.flight_vel;
flight_pres = old.flight_pres;
ground_pres = old.ground_pres;
accel_plus_g = old.accel_plus_g;
accel_minus_g = old.accel_minus_g;
gps = new AltosGPS(old.gps);
}
public AltosRecord() {
version = 0;
callsign = "N0CALL";
serial = 0;
flight = 0;
rssi = 0;
status = 0;
state = Altos.ao_flight_startup;
tick = 0;
accel = 0;
pres = 0;
temp = 0;
batt = 0;
drogue = 0;
main = 0;
flight_accel = 0;
ground_accel = 0;
flight_vel = 0;
flight_pres = 0;
ground_pres = 0;
accel_plus_g = 0;
accel_minus_g = 0;
gps = new AltosGPS();
}
}
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