2 * Copyright © 2010 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
18 package org.altusmetrum.AltosLib;
22 import java.util.HashMap;
25 public class AltosRecord implements Comparable <AltosRecord> {
26 public final static int MISSING = 0x7fffffff;
28 public static final int seen_flight = 1;
29 public static final int seen_sensor = 2;
30 public static final int seen_temp_volt = 4;
31 public static final int seen_deploy = 8;
32 public static final int seen_gps_time = 16;
33 public static final int seen_gps_lat = 32;
34 public static final int seen_gps_lon = 64;
35 public static final int seen_companion = 128;
39 public String callsign;
54 public int ground_accel;
55 public int ground_pres;
56 public int accel_plus_g;
57 public int accel_minus_g;
59 public double acceleration;
63 public int flight_accel;
64 public int flight_vel;
65 public int flight_pres;
68 public boolean new_gps;
73 public double time; /* seconds since boost */
75 public int device_type;
76 public int config_major;
77 public int config_minor;
78 public int apogee_delay;
79 public int main_deploy;
80 public int flight_log_max;
81 public String firmware_version;
83 public AltosRecordCompanion companion;
86 * Values for our MP3H6115A pressure sensor
88 * From the data sheet:
90 * Pressure range: 15-115 kPa
91 * Voltage at 115kPa: 2.82
92 * Output scale: 27mV/kPa
95 * 27 mV/kPa * 2047 / 3300 counts/mV = 16.75 counts/kPa
96 * 2.82V * 2047 / 3.3 counts/V = 1749 counts/115 kPa
99 public static final double counts_per_kPa = 27 * 2047 / 3300;
100 public static final double counts_at_101_3kPa = 1674.0;
103 barometer_to_pressure(double count)
105 return ((count / 16.0) / 2047.0 + 0.095) / 0.009 * 1000.0;
108 public double raw_pressure() {
111 return barometer_to_pressure(pres);
114 public double filtered_pressure() {
115 if (flight_pres == MISSING)
117 return barometer_to_pressure(flight_pres);
120 public double ground_pressure() {
121 if (ground_pres == MISSING)
123 return barometer_to_pressure(ground_pres);
126 public double raw_altitude() {
127 double p = raw_pressure();
130 return AltosConvert.pressure_to_altitude(p);
133 public double ground_altitude() {
134 double p = ground_pressure();
137 return AltosConvert.pressure_to_altitude(p);
140 public double filtered_altitude() {
141 if (height != MISSING && ground_pres != MISSING)
142 return height + ground_altitude();
144 double p = filtered_pressure();
147 return AltosConvert.pressure_to_altitude(p);
150 public double filtered_height() {
151 if (height != MISSING)
154 double f = filtered_altitude();
155 double g = ground_altitude();
156 if (f == MISSING || g == MISSING)
161 public double raw_height() {
162 double r = raw_altitude();
163 double g = ground_altitude();
165 if (r == MISSING || g == MISSING)
170 public double battery_voltage() {
173 return AltosConvert.cc_battery_to_voltage(batt);
176 public double main_voltage() {
179 return AltosConvert.cc_ignitor_to_voltage(main);
182 public double drogue_voltage() {
183 if (drogue == MISSING)
185 return AltosConvert.cc_ignitor_to_voltage(drogue);
188 /* Value for the CC1111 built-in temperature sensor
189 * Output voltage at 0°C = 0.755V
190 * Coefficient = 0.00247V/°C
191 * Reference voltage = 1.25V
193 * temp = ((value / 32767) * 1.25 - 0.755) / 0.00247
194 * = (value - 19791.268) / 32768 * 1.25 / 0.00247
198 thermometer_to_temperature(double thermo)
200 return (thermo - 19791.268) / 32728.0 * 1.25 / 0.00247;
203 public double temperature() {
206 return thermometer_to_temperature(temp);
209 public double accel_counts_per_mss() {
210 double counts_per_g = Math.abs(accel_minus_g - accel_plus_g) / 2;
212 return counts_per_g / 9.80665;
215 public double acceleration() {
216 if (acceleration != MISSING)
219 if (ground_accel == MISSING || accel == MISSING)
221 return (ground_accel - accel) / accel_counts_per_mss();
224 public double accel_speed() {
225 if (speed != MISSING)
227 if (flight_vel == MISSING)
229 return flight_vel / (accel_counts_per_mss() * 100.0);
232 public String state() {
233 return AltosLib.state_name(state);
236 public static String gets(FileInputStream s) throws IOException {
240 while ((c = s.read()) != -1) {
246 line = line + (char) c;
251 public int compareTo(AltosRecord o) {
252 return tick - o.tick;
255 public AltosRecord(AltosRecord old) {
256 version = old.version;
258 callsign = old.callsign;
271 flight_accel = old.flight_accel;
272 ground_accel = old.ground_accel;
273 flight_vel = old.flight_vel;
274 flight_pres = old.flight_pres;
275 ground_pres = old.ground_pres;
276 accel_plus_g = old.accel_plus_g;
277 accel_minus_g = old.accel_minus_g;
278 acceleration = old.acceleration;
281 gps = new AltosGPS(old.gps);
283 companion = old.companion;
288 public AltosRecord() {
296 state = AltosLib.ao_flight_startup;
311 acceleration = MISSING;
314 gps = new AltosGPS();