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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;
/*
* Telemetry data contents
*/
/*
* The telemetry data stream is a bit of a mess at present, with no consistent
* formatting. In particular, the GPS data is formatted for viewing instead of parsing.
* However, the key feature is that every telemetry line contains all of the information
* necessary to describe the current rocket state, including the calibration values
* for accelerometer and barometer.
*
* GPS unlocked:
*
* VERSION 2 CALL KB0G SERIAL 51 FLIGHT 2 RSSI -68 STATUS ff STATE pad 1001 \
* a: 16032 p: 21232 t: 20284 v: 25160 d: 204 m: 204 fa: 16038 ga: 16032 fv: 0 \
* fp: 21232 gp: 21230 a+: 16049 a-: 16304 GPS 0 sat unlocked SAT 1 15 30
*
* GPS locked:
*
* VERSION 2 CALL KB0G SERIAL 51 FLIGHT 2 RSSI -71 STATUS ff STATE pad 2504 \
* a: 16028 p: 21220 t: 20360 v: 25004 d: 208 m: 200 fa: 16031 ga: 16032 fv: 330 \
* fp: 21231 gp: 21230 a+: 16049 a-: 16304 \
* GPS 9 sat 2010-02-13 17:16:51 35°20.0803'N 106°45.2235'W 1790m \
* 0.00m/s(H) 0° 0.00m/s(V) 1.0(hdop) 0(herr) 0(verr) \
* SAT 10 29 30 24 28 5 25 21 20 15 33 1 23 30 24 18 26 10 29 2 26
*/
public class AltosTelemetry extends AltosRecord {
public AltosTelemetry(String line) throws ParseException, AltosCRCException {
String[] words = line.split("\\s+");
int i = 0;
if (words[i].equals("CRC") && words[i+1].equals("INVALID")) {
i += 2;
AltosParse.word(words[i++], "RSSI");
rssi = AltosParse.parse_int(words[i++]);
throw new AltosCRCException(rssi);
}
if (words[i].equals("CALL")) {
version = 0;
} else {
AltosParse.word (words[i++], "VERSION");
version = AltosParse.parse_int(words[i++]);
}
AltosParse.word (words[i++], "CALL");
callsign = words[i++];
AltosParse.word (words[i++], "SERIAL");
serial = AltosParse.parse_int(words[i++]);
if (version >= 2) {
AltosParse.word (words[i++], "FLIGHT");
flight = AltosParse.parse_int(words[i++]);
} else
flight = 0;
AltosParse.word(words[i++], "RSSI");
rssi = AltosParse.parse_int(words[i++]);
/* Older telemetry data had mis-computed RSSI value */
if (version <= 2)
rssi = (rssi + 74) / 2 - 74;
AltosParse.word(words[i++], "STATUS");
status = AltosParse.parse_hex(words[i++]);
AltosParse.word(words[i++], "STATE");
state = Altos.state(words[i++]);
tick = AltosParse.parse_int(words[i++]);
AltosParse.word(words[i++], "a:");
accel = AltosParse.parse_int(words[i++]);
AltosParse.word(words[i++], "p:");
pres = AltosParse.parse_int(words[i++]);
AltosParse.word(words[i++], "t:");
temp = AltosParse.parse_int(words[i++]);
AltosParse.word(words[i++], "v:");
batt = AltosParse.parse_int(words[i++]);
AltosParse.word(words[i++], "d:");
drogue = AltosParse.parse_int(words[i++]);
AltosParse.word(words[i++], "m:");
main = AltosParse.parse_int(words[i++]);
AltosParse.word(words[i++], "fa:");
flight_accel = AltosParse.parse_int(words[i++]);
AltosParse.word(words[i++], "ga:");
ground_accel = AltosParse.parse_int(words[i++]);
AltosParse.word(words[i++], "fv:");
flight_vel = AltosParse.parse_int(words[i++]);
AltosParse.word(words[i++], "fp:");
flight_pres = AltosParse.parse_int(words[i++]);
AltosParse.word(words[i++], "gp:");
ground_pres = AltosParse.parse_int(words[i++]);
if (version >= 1) {
AltosParse.word(words[i++], "a+:");
accel_plus_g = AltosParse.parse_int(words[i++]);
AltosParse.word(words[i++], "a-:");
accel_minus_g = AltosParse.parse_int(words[i++]);
} else {
accel_plus_g = ground_accel;
accel_minus_g = ground_accel + 530;
}
gps = new AltosGPS(words, i, version);
}
}
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