altoslib: Reset consecutive GPS count when GPS bad
[fw/altos] / altoslib / AltosState.java
index e0d9bb1fc394dc1cb42b495bc03e755d135968bb..7a64f8a188182704c5aa6fbd01e17fb627eef5e5 100644 (file)
@@ -3,7 +3,8 @@
  *
  * 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.
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful, but
  * WITHOUT ANY WARRANTY; without even the implied warranty of
  * Track flight state from telemetry or eeprom data stream
  */
 
-package org.altusmetrum.altoslib_1;
+package org.altusmetrum.altoslib_13;
 
-public class AltosState {
-       public AltosRecord data;
+public class AltosState extends AltosDataListener {
+
+       public static final int set_position = 1;
+       public static final int set_gps = 2;
+       public static final int set_data = 4;
+
+       public int set;
+
+       static final double filter_len = 2.0;
+       static final double ascent_filter_len = 0.5;
+       static final double descent_filter_len = 5.0;
 
        /* derived data */
 
-       public long     report_time;
+       public long     received_time;
+
+       public int      rssi;
+       public int      status;
+
+       class AltosValue {
+               double  value;
+               double  prev_value;
+               private double  max_value;
+               private double  set_time;
+               private double  prev_set_time;
+
+               boolean can_max() { return true; }
+
+               void set(double new_value, double time) {
+                       if (new_value != AltosLib.MISSING) {
+                               value = new_value;
+                               if (can_max() && (max_value == AltosLib.MISSING || value > max_value))
+                                       max_value = value;
+                               set_time = time;
+                       }
+               }
+
+               void set_filtered(double new_value, double time) {
+                       if (prev_value != AltosLib.MISSING) {
+                               double f = 1/Math.exp((time - prev_set_time) / filter_len);
+                               new_value = f * new_value + (1-f) * prev_value;
+                       }
+                       set(new_value, time);
+               }
+
+               double value() {
+                       return value;
+               }
+
+               double max() {
+                       return max_value;
+               }
+
+               double prev() {
+                       return prev_value;
+               }
+
+               double change() {
+                       if (value != AltosLib.MISSING && prev_value != AltosLib.MISSING)
+                               return value - prev_value;
+                       return AltosLib.MISSING;
+               }
+
+               double rate() {
+                       double c = change();
+                       double t = set_time - prev_set_time;
+
+                       if (c != AltosLib.MISSING && t != 0)
+                               return c / t;
+                       return AltosLib.MISSING;
+               }
+
+               double integrate() {
+                       if (value == AltosLib.MISSING)
+                               return AltosLib.MISSING;
+                       if (prev_value == AltosLib.MISSING)
+                               return AltosLib.MISSING;
 
-       public double   time;
-       public double   time_change;
-       public int      tick;
+                       return (value + prev_value) / 2 * (set_time - prev_set_time);
+               }
+
+               double time() {
+                       return set_time;
+               }
+
+               void set_derivative(AltosValue in) {
+                       double  n = in.rate();
+
+                       if (n == AltosLib.MISSING)
+                               return;
+
+                       double  p = prev_value;
+                       double  pt = prev_set_time;
+
+                       if (p == AltosLib.MISSING) {
+                               p = 0;
+                               pt = in.time() - 0.01;
+                       }
+
+                       /* Clip changes to reduce noise */
+                       double  ddt = in.time() - pt;
+                       double  ddv = (n - p) / ddt;
+
+                       final double max = 100000;
+
+                       /* 100gs */
+                       if (Math.abs(ddv) > max) {
+                               if (n > p)
+                                       n = p + ddt * max;
+                               else
+                                       n = p - ddt * max;
+                       }
+
+                       double filter_len;
+
+                       if (ascent)
+                               filter_len = ascent_filter_len;
+                       else
+                               filter_len = descent_filter_len;
+
+                       double f = 1/Math.exp(ddt/ filter_len);
+                       n = p * f + n * (1-f);
+
+                       set(n, in.time());
+               }
+
+               void set_integral(AltosValue in) {
+                       double  change = in.integrate();
+
+                       if (change != AltosLib.MISSING) {
+                               double  prev = prev_value;
+                               if (prev == AltosLib.MISSING)
+                                       prev = 0;
+                               set(prev + change, in.time());
+                       }
+               }
+
+               void copy(AltosValue old) {
+                       value = old.value;
+                       set_time = old.set_time;
+                       prev_value = old.value;
+                       prev_set_time = old.set_time;
+                       max_value = old.max_value;
+               }
+
+               void finish_update() {
+                       prev_value = value;
+                       prev_set_time = set_time;
+               }
+
+               AltosValue() {
+                       value = AltosLib.MISSING;
+                       prev_value = AltosLib.MISSING;
+                       max_value = AltosLib.MISSING;
+               }
+
+       }
+
+       class AltosCValue {
+
+               class AltosIValue extends AltosValue {
+                       boolean can_max() {
+                               return c_can_max();
+                       }
+
+                       AltosIValue() {
+                               super();
+                       }
+               };
+
+               public AltosIValue      measured;
+               public AltosIValue      computed;
+
+               boolean can_max() { return true; }
+
+               boolean c_can_max() { return can_max(); }
+
+               double value() {
+                       double v = measured.value();
+                       if (v != AltosLib.MISSING)
+                               return v;
+                       return computed.value();
+               }
+
+               boolean is_measured() {
+                       return measured.value() != AltosLib.MISSING;
+               }
+
+               double max() {
+                       double m = measured.max();
+
+                       if (m != AltosLib.MISSING)
+                               return m;
+                       return computed.max();
+               }
+
+               double prev_value() {
+                       if (measured.value != AltosLib.MISSING && measured.prev_value != AltosLib.MISSING)
+                               return measured.prev_value;
+                       return computed.prev_value;
+               }
+
+               AltosValue altos_value() {
+                       if (measured.value() != AltosLib.MISSING)
+                               return measured;
+                       return computed;
+               }
+
+               double change() {
+                       double c = measured.change();
+                       if (c == AltosLib.MISSING)
+                               c = computed.change();
+                       return c;
+               }
+
+               double rate() {
+                       double r = measured.rate();
+                       if (r == AltosLib.MISSING)
+                               r = computed.rate();
+                       return r;
+               }
+
+               void set_measured(double new_value, double time) {
+                       measured.set(new_value, time);
+               }
+
+               void set_computed(double new_value, double time) {
+                       computed.set(new_value, time);
+               }
+
+               void set_derivative(AltosValue in) {
+                       computed.set_derivative(in);
+               }
+
+               void set_derivative(AltosCValue in) {
+                       set_derivative(in.altos_value());
+               }
+
+               void set_integral(AltosValue in) {
+                       computed.set_integral(in);
+               }
+
+               void set_integral(AltosCValue in) {
+                       set_integral(in.altos_value());
+               }
+
+               void copy(AltosCValue old) {
+                       measured.copy(old.measured);
+                       computed.copy(old.computed);
+               }
+
+               void finish_update() {
+                       measured.finish_update();
+                       computed.finish_update();
+               }
+
+               public AltosCValue() {
+                       measured = new AltosIValue();
+                       computed = new AltosIValue();
+               }
+       }
 
-       public int      state;
        public boolean  landed;
        public boolean  ascent; /* going up? */
-       public boolean boost;   /* under power */
-
-       public double   ground_altitude;
-       public double   altitude;
-       public double   height;
-       public double   pressure;
-       public double   acceleration;
-       public double   battery;
+       public boolean  boost;  /* under power */
+
+       private double pressure_to_altitude(double p) {
+               if (p == AltosLib.MISSING)
+                       return AltosLib.MISSING;
+               return AltosConvert.pressure_to_altitude(p);
+       }
+
+       private AltosCValue ground_altitude;
+
+       public double ground_altitude() {
+               return ground_altitude.value();
+       }
+
+       public void set_ground_altitude(double a) {
+               ground_altitude.set_measured(a, time);
+       }
+
+       class AltosGpsGroundAltitude extends AltosValue {
+               void set(double a, double t) {
+                       super.set(a, t);
+                       pad_alt = value();
+                       gps_altitude.set_gps_height();
+               }
+
+               void set_filtered(double a, double t) {
+                       super.set_filtered(a, t);
+                       pad_alt = value();
+                       gps_altitude.set_gps_height();
+               }
+
+               AltosGpsGroundAltitude() {
+                       super();
+               }
+       }
+
+       private AltosGpsGroundAltitude gps_ground_altitude;
+
+       public double gps_ground_altitude() {
+               return gps_ground_altitude.value();
+       }
+
+       public void set_gps_ground_altitude(double a) {
+               gps_ground_altitude.set(a, time);
+       }
+
+       class AltosGroundPressure extends AltosCValue {
+               void set_filtered(double p, double time) {
+                       computed.set_filtered(p, time);
+                       if (!is_measured())
+                               ground_altitude.set_computed(pressure_to_altitude(computed.value()), time);
+               }
+
+               void set_measured(double p, double time) {
+                       super.set_measured(p, time);
+                       ground_altitude.set_computed(pressure_to_altitude(p), time);
+               }
+
+               AltosGroundPressure () {
+                       super();
+               }
+       }
+
+       private AltosGroundPressure ground_pressure;
+
+       public double ground_pressure() {
+               return ground_pressure.value();
+       }
+
+       public void set_ground_pressure (double pressure) {
+               ground_pressure.set_measured(pressure, time);
+       }
+
+       class AltosAltitude extends AltosCValue {
+
+               private void set_speed(AltosValue v) {
+                       if (!acceleration.is_measured() || !ascent)
+                               speed.set_derivative(this);
+               }
+
+               void set_computed(double a, double time) {
+                       super.set_computed(a,time);
+                       set_speed(computed);
+                       set |= set_position;
+               }
+
+               void set_measured(double a, double time) {
+                       super.set_measured(a,time);
+                       set_speed(measured);
+                       set |= set_position;
+               }
+
+               AltosAltitude() {
+                       super();
+               }
+       }
+
+       private AltosAltitude   altitude;
+
+       class AltosGpsAltitude extends AltosValue {
+
+               private void set_gps_height() {
+                       double  a = value();
+                       double  g = gps_ground_altitude.value();
+
+                       if (a != AltosLib.MISSING && g != AltosLib.MISSING)
+                               gps_height = a - g;
+                       else
+                               gps_height = AltosLib.MISSING;
+               }
+
+               void set(double a, double t) {
+                       super.set(a, t);
+                       set_gps_height();
+               }
+
+               AltosGpsAltitude() {
+                       super();
+               }
+       }
+
+       private AltosGpsAltitude        gps_altitude;
+
+       private AltosValue              gps_ground_speed;
+       private AltosValue              gps_ascent_rate;
+       private AltosValue              gps_course;
+       private AltosValue              gps_speed;
+
+       public double altitude() {
+               double a = altitude.value();
+               if (a != AltosLib.MISSING)
+                       return a;
+               return gps_altitude.value();
+       }
+
+       public double max_altitude() {
+               double a = altitude.max();
+               if (a != AltosLib.MISSING)
+                       return a;
+               return gps_altitude.max();
+       }
+
+       public void set_altitude(double new_altitude) {
+               double old_altitude = altitude.value();
+               if (old_altitude != AltosLib.MISSING) {
+                       while (old_altitude - new_altitude > 32000)
+                               new_altitude += 65536.0;
+               }
+               altitude.set_measured(new_altitude, time);
+       }
+
+       public double gps_altitude() {
+               return gps_altitude.value();
+       }
+
+       public double max_gps_altitude() {
+               return gps_altitude.max();
+       }
+
+       public void set_gps_altitude(double new_gps_altitude) {
+               gps_altitude.set(new_gps_altitude, time);
+       }
+
+       public double gps_ground_speed() {
+               return gps_ground_speed.value();
+       }
+
+       public double max_gps_ground_speed() {
+               return gps_ground_speed.max();
+       }
+
+       public double gps_ascent_rate() {
+               return gps_ascent_rate.value();
+       }
+
+       public double max_gps_ascent_rate() {
+               return gps_ascent_rate.max();
+       }
+
+       public double gps_course() {
+               return gps_course.value();
+       }
+
+       public double gps_speed() {
+               return gps_speed.value();
+       }
+
+       public double max_gps_speed() {
+               return gps_speed.max();
+       }
+
+       class AltosPressure extends AltosValue {
+               void set(double p, double time) {
+                       super.set(p, time);
+                       if (state() == AltosLib.ao_flight_pad)
+                               ground_pressure.set_filtered(p, time);
+                       double a = pressure_to_altitude(p);
+                       altitude.set_computed(a, time);
+               }
+
+               AltosPressure() {
+                       super();
+               }
+       }
+
+       private AltosPressure   pressure;
+
+       public double pressure() {
+               return pressure.value();
+       }
+
+       public void set_pressure(double p) {
+               pressure.set(p, time);
+       }
+
+       public void set_thrust(double N) {
+       }
+
+       public double baro_height() {
+               double a = altitude();
+               double g = ground_altitude();
+               if (a != AltosLib.MISSING && g != AltosLib.MISSING)
+                       return a - g;
+               return AltosLib.MISSING;
+       }
+
+       public double height() {
+               double k = kalman_height.value();
+               if (k != AltosLib.MISSING)
+                       return k;
+
+               double b = baro_height();
+               if (b != AltosLib.MISSING)
+                       return b;
+
+               return gps_height();
+       }
+
+       public double max_height() {
+               double  k = kalman_height.max();
+               if (k != AltosLib.MISSING)
+                       return k;
+
+               double a = altitude.max();
+               double g = ground_altitude();
+               if (a != AltosLib.MISSING && g != AltosLib.MISSING)
+                       return a - g;
+               return max_gps_height();
+       }
+
+       public double gps_height() {
+               double a = gps_altitude();
+               double g = gps_ground_altitude();
+
+               if (a != AltosLib.MISSING && g != AltosLib.MISSING)
+                       return a - g;
+               return AltosLib.MISSING;
+       }
+
+       public double max_gps_height() {
+               double a = gps_altitude.max();
+               double g = gps_ground_altitude();
+
+               if (a != AltosLib.MISSING && g != AltosLib.MISSING)
+                       return a - g;
+               return AltosLib.MISSING;
+       }
+
+       class AltosSpeed extends AltosCValue {
+
+               boolean can_max() {
+                       return state() < AltosLib.ao_flight_fast || state() == AltosLib.ao_flight_stateless;
+               }
+
+               void set_accel() {
+                       acceleration.set_derivative(this);
+               }
+
+               void set_derivative(AltosCValue in) {
+                       super.set_derivative(in);
+                       set_accel();
+               }
+
+               void set_computed(double new_value, double time) {
+                       super.set_computed(new_value, time);
+                       set_accel();
+               }
+
+               void set_measured(double new_value, double time) {
+                       super.set_measured(new_value, time);
+                       set_accel();
+               }
+
+               AltosSpeed() {
+                       super();
+               }
+       }
+
+       private AltosSpeed speed;
+
+       public double speed() {
+               double v = kalman_speed.value();
+               if (v != AltosLib.MISSING)
+                       return v;
+               v = speed.value();
+               if (v != AltosLib.MISSING)
+                       return v;
+               v = gps_speed();
+               if (v != AltosLib.MISSING)
+                       return v;
+               return AltosLib.MISSING;
+       }
+
+       public double max_speed() {
+               double v = kalman_speed.max();
+               if (v != AltosLib.MISSING)
+                       return v;
+               v = speed.max();
+               if (v != AltosLib.MISSING)
+                       return v;
+               v = max_gps_speed();
+               if (v != AltosLib.MISSING)
+                       return v;
+               return AltosLib.MISSING;
+       }
+
+       class AltosAccel extends AltosCValue {
+
+               boolean can_max() {
+                       return state() < AltosLib.ao_flight_fast || state() == AltosLib.ao_flight_stateless;
+               }
+
+               void set_measured(double a, double time) {
+                       super.set_measured(a, time);
+                       if (ascent)
+                               speed.set_integral(this.measured);
+               }
+
+               AltosAccel() {
+                       super();
+               }
+       }
+
+       AltosAccel acceleration;
+
+       public double acceleration() {
+               return acceleration.value();
+       }
+
+       public double max_acceleration() {
+               return acceleration.max();
+       }
+
+       public AltosCValue      orient;
+
+       public void set_orient(double new_orient) {
+               orient.set_measured(new_orient, time);
+       }
+
+       public double orient() {
+               return orient.value();
+       }
+
+       public double max_orient() {
+               return orient.max();
+       }
+
+       public AltosValue       kalman_height, kalman_speed, kalman_acceleration;
+
+       public void set_kalman(double height, double speed, double acceleration) {
+               double old_height = kalman_height.value();
+               if (old_height != AltosLib.MISSING) {
+                       while (old_height - height > 32000)
+                               height += 65536;
+               }
+               kalman_height.set(height, time);
+               kalman_speed.set(speed, time);
+               kalman_acceleration.set(acceleration, time);
+       }
+
+       public double   battery_voltage;
+       public double   pyro_voltage;
        public double   temperature;
-       public double   main_sense;
-       public double   drogue_sense;
-       public double   accel_speed;
-       public double   baro_speed;
+       public double   apogee_voltage;
+       public double   main_voltage;
 
-       public double   max_height;
-       public double   max_acceleration;
-       public double   max_accel_speed;
-       public double   max_baro_speed;
+       public double   igniter_voltage[];
 
        public AltosGPS gps;
-       public int gps_sequence;
-
-       public AltosIMU imu;
-       public AltosMag mag;
+       public boolean  gps_pending;
 
        public static final int MIN_PAD_SAMPLES = 10;
 
        public int      npad;
-       public int      ngps;
        public int      gps_waiting;
        public boolean  gps_ready;
 
+       public int      ngps;
+
        public AltosGreatCircle from_pad;
        public double   elevation;      /* from pad */
+       public double   distance;       /* distance along ground */
        public double   range;          /* total distance */
 
        public double   gps_height;
@@ -78,203 +697,367 @@ public class AltosState {
        public int      speak_tick;
        public double   speak_altitude;
 
-       public double speed() {
-               if (ascent)
-                       return accel_speed;
-               else
-                       return baro_speed;
+       public double   ground_accel;
+
+       public AltosCompanion   companion;
+
+       public int      pyro_fired;
+
+       public void set_npad(int npad) {
+               this.npad = npad;
+               gps_waiting = MIN_PAD_SAMPLES - npad;
+               if (this.gps_waiting < 0)
+                       gps_waiting = 0;
+               gps_ready = gps_waiting == 0;
        }
 
-       public double max_speed() {
-               if (max_accel_speed != 0)
-                       return max_accel_speed;
-               return max_baro_speed;
-       }
-
-       public void init (AltosRecord cur, AltosState prev_state) {
-               data = cur;
-
-               /* Discard previous state if it was for a different board */
-               if (prev_state != null && prev_state.data.serial != data.serial)
-                       prev_state = null;
-               ground_altitude = data.ground_altitude();
-
-               altitude = data.altitude();
-               if (altitude == AltosRecord.MISSING && data.gps != null)
-                       altitude = data.gps.alt;
-
-               height = AltosRecord.MISSING;
-               if (data.kalman_height != AltosRecord.MISSING)
-                       height = data.kalman_height;
-               else {
-                       if (altitude != AltosRecord.MISSING && ground_altitude != AltosRecord.MISSING) {
-                               double  cur_height = altitude - ground_altitude;
-                               if (prev_state == null || prev_state.height == AltosRecord.MISSING)
-                                       height = cur_height;
-                               else
-                                       height = (prev_state.height * 15 + cur_height) / 16.0;
-                       }
-               }
+       public void init() {
+               super.init();
 
-               report_time = System.currentTimeMillis();
-
-               if (data.kalman_acceleration != AltosRecord.MISSING)
-                       acceleration = data.kalman_acceleration;
-               else
-                       acceleration = data.acceleration();
-               temperature = data.temperature();
-               drogue_sense = data.drogue_voltage();
-               main_sense = data.main_voltage();
-               battery = data.battery_voltage();
-               pressure = data.pressure();
-               tick = data.tick;
-               state = data.state;
-
-               if (prev_state != null) {
-
-                       /* Preserve any existing gps data */
-                       npad = prev_state.npad;
-                       ngps = prev_state.ngps;
-                       gps = prev_state.gps;
-                       gps_sequence = prev_state.gps_sequence;
-                       pad_lat = prev_state.pad_lat;
-                       pad_lon = prev_state.pad_lon;
-                       pad_alt = prev_state.pad_alt;
-                       max_height = prev_state.max_height;
-                       max_acceleration = prev_state.max_acceleration;
-                       max_accel_speed = prev_state.max_accel_speed;
-                       max_baro_speed = prev_state.max_baro_speed;
-                       imu = prev_state.imu;
-                       mag = prev_state.mag;
-
-                       /* make sure the clock is monotonic */
-                       while (tick < prev_state.tick)
-                               tick += 65536;
-
-                       time_change = (tick - prev_state.tick) / 100.0;
-
-                       if (data.kalman_speed != AltosRecord.MISSING) {
-                               baro_speed = accel_speed = data.kalman_speed;
-                       } else {
-                               /* compute barometric speed */
-
-                               double height_change = height - prev_state.height;
-
-                               double prev_baro_speed = prev_state.baro_speed;
-                               if (prev_baro_speed == AltosRecord.MISSING)
-                                       prev_baro_speed = 0;
-
-                               if (time_change > 0)
-                                       baro_speed = (prev_baro_speed * 3 + (height_change / time_change)) / 4.0;
-                               else
-                                       baro_speed = prev_state.baro_speed;
+               set = 0;
 
-                               double prev_accel_speed = prev_state.accel_speed;
+               received_time = System.currentTimeMillis();
+               landed = false;
+               boost = false;
+               rssi = AltosLib.MISSING;
+               status = 0;
 
-                               if (prev_accel_speed == AltosRecord.MISSING)
-                                       prev_accel_speed = 0;
+               ground_altitude = new AltosCValue();
+               ground_pressure = new AltosGroundPressure();
+               altitude = new AltosAltitude();
+               pressure = new AltosPressure();
+               speed = new AltosSpeed();
+               acceleration = new AltosAccel();
+               orient = new AltosCValue();
 
-                               if (acceleration == AltosRecord.MISSING) {
-                                       /* Fill in mising acceleration value */
-                                       accel_speed = baro_speed;
+               temperature = AltosLib.MISSING;
+               battery_voltage = AltosLib.MISSING;
+               pyro_voltage = AltosLib.MISSING;
+               apogee_voltage = AltosLib.MISSING;
+               main_voltage = AltosLib.MISSING;
+               igniter_voltage = null;
 
-                                       if (time_change > 0 && accel_speed != AltosRecord.MISSING)
-                                               acceleration = (accel_speed - prev_accel_speed) / time_change;
-                                       else
-                                               acceleration = prev_state.acceleration;
-                               } else {
-                                       /* compute accelerometer speed */
-                                       accel_speed = prev_accel_speed + acceleration * time_change;
-                               }
-                       }
-               } else {
-                       npad = 0;
-                       ngps = 0;
-                       gps = null;
-                       gps_sequence = 0;
-                       baro_speed = AltosRecord.MISSING;
-                       accel_speed = AltosRecord.MISSING;
-                       pad_alt = AltosRecord.MISSING;
-                       max_baro_speed = 0;
-                       max_accel_speed = 0;
-                       max_height = 0;
-                       max_acceleration = 0;
-                       time_change = 0;
-               }
+               kalman_height = new AltosValue();
+               kalman_speed = new AltosValue();
+               kalman_acceleration = new AltosValue();
+
+               gps = null;
+               gps_pending = false;
+
+               last_imu_time = AltosLib.MISSING;
+               rotation = null;
+
+               accel_ground_along = AltosLib.MISSING;
+               accel_ground_across = AltosLib.MISSING;
+               accel_ground_through = AltosLib.MISSING;
+
+               accel_along = AltosLib.MISSING;
+               accel_across = AltosLib.MISSING;
+               accel_through = AltosLib.MISSING;
+
+               gyro_roll = AltosLib.MISSING;
+               gyro_pitch = AltosLib.MISSING;
+               gyro_yaw = AltosLib.MISSING;
+
+               mag_along = AltosLib.MISSING;
+               mag_across = AltosLib.MISSING;
+               mag_through = AltosLib.MISSING;
+
+               set_npad(0);
+               ngps = 0;
+
+               from_pad = null;
+               elevation = AltosLib.MISSING;
+               distance = AltosLib.MISSING;
+               range = AltosLib.MISSING;
+               gps_height = AltosLib.MISSING;
 
-               time = tick / 100.0;
+               pad_lat = AltosLib.MISSING;
+               pad_lon = AltosLib.MISSING;
+               pad_alt = AltosLib.MISSING;
 
-               if (data.gps != null && data.gps_sequence != gps_sequence && (state < AltosLib.ao_flight_boost)) {
+               gps_altitude = new AltosGpsAltitude();
+               gps_ground_altitude = new AltosGpsGroundAltitude();
+               gps_ground_speed = new AltosValue();
+               gps_speed = new AltosValue();
+               gps_ascent_rate = new AltosValue();
+               gps_course = new AltosValue();
 
+               speak_tick = AltosLib.MISSING;
+               speak_altitude = AltosLib.MISSING;
+
+               ground_accel = AltosLib.MISSING;
+
+               companion = null;
+
+               pyro_fired = 0;
+       }
+
+       void finish_update() {
+               ground_altitude.finish_update();
+               altitude.finish_update();
+               pressure.finish_update();
+               speed.finish_update();
+               acceleration.finish_update();
+               orient.finish_update();
+
+               kalman_height.finish_update();
+               kalman_speed.finish_update();
+               kalman_acceleration.finish_update();
+       }
+
+       void update_time() {
+       }
+
+       void update_gps() {
+               elevation = AltosLib.MISSING;
+               distance = AltosLib.MISSING;
+               range = AltosLib.MISSING;
+
+               if (gps == null)
+                       return;
+
+               if (gps.locked && gps.nsat >= 4) {
                        /* Track consecutive 'good' gps reports, waiting for 10 of them */
-                       if (data.gps != null && data.gps.locked && data.gps.nsat >= 4)
-                               npad++;
-                       else
-                               npad = 0;
-
-                       /* Average GPS data while on the pad */
-                       if (data.gps != null && data.gps.locked && data.gps.nsat >= 4) {
-                               if (ngps > 1 && state == AltosLib.ao_flight_pad) {
-                                       /* filter pad position */
-                                       pad_lat = (pad_lat * 31.0 + data.gps.lat) / 32.0;
-                                       pad_lon = (pad_lon * 31.0 + data.gps.lon) / 32.0;
-                                       pad_alt = (pad_alt * 31.0 + data.gps.alt) / 32.0;
-                               } else {
-                                       pad_lat = data.gps.lat;
-                                       pad_lon = data.gps.lon;
-                                       pad_alt = data.gps.alt;
+                       if (state() == AltosLib.ao_flight_pad || state() == AltosLib.ao_flight_stateless) {
+                               set_npad(npad+1);
+                               if (pad_lat != AltosLib.MISSING && (npad < 10 || state() == AltosLib.ao_flight_pad)) {
+                                       pad_lat = (pad_lat * 31 + gps.lat) / 32;
+                                       pad_lon = (pad_lon * 31 + gps.lon) / 32;
+                                       gps_ground_altitude.set_filtered(gps.alt, time);
                                }
-                               ngps++;
                        }
-               } else {
-                       if (ngps == 0 && ground_altitude != AltosRecord.MISSING)
-                               pad_alt = ground_altitude;
+                       if (pad_lat == AltosLib.MISSING) {
+                               pad_lat = gps.lat;
+                               pad_lon = gps.lon;
+                               gps_ground_altitude.set(gps.alt, time);
+                       }
+                       gps_altitude.set(gps.alt, time);
+                       if (gps.climb_rate != AltosLib.MISSING)
+                               gps_ascent_rate.set(gps.climb_rate, time);
+                       if (gps.ground_speed != AltosLib.MISSING)
+                               gps_ground_speed.set(gps.ground_speed, time);
+                       if (gps.climb_rate != AltosLib.MISSING && gps.ground_speed != AltosLib.MISSING)
+                               gps_speed.set(Math.sqrt(gps.ground_speed * gps.ground_speed +
+                                                       gps.climb_rate * gps.climb_rate), time);
+                       if (gps.course != AltosLib.MISSING)
+                               gps_course.set(gps.course, time);
+               } else if (state() == AltosLib.ao_flight_pad || state() == AltosLib.ao_flight_stateless) {
+                       set_npad(0);
                }
+               if (gps.lat != 0 && gps.lon != 0 &&
+                   pad_lat != AltosLib.MISSING &&
+                   pad_lon != AltosLib.MISSING)
+               {
+                       double h = height();
 
-               gps_sequence = data.gps_sequence;
+                       if (h == AltosLib.MISSING)
+                               h = 0;
+                       from_pad = new AltosGreatCircle(pad_lat, pad_lon, 0, gps.lat, gps.lon, h);
+                       elevation = from_pad.elevation;
+                       distance = from_pad.distance;
+                       range = from_pad.range;
+               }
+       }
 
-               gps_waiting = MIN_PAD_SAMPLES - npad;
-               if (gps_waiting < 0)
-                       gps_waiting = 0;
+       public String state_name() {
+               return AltosLib.state_name(state());
+       }
 
-               gps_ready = gps_waiting == 0;
+       public void set_state(int state) {
+               super.set_state(state);
+               ascent = (AltosLib.ao_flight_boost <= state() &&
+                         state() <= AltosLib.ao_flight_coast);
+               boost = (AltosLib.ao_flight_boost == state());
+       }
+
+       public int rssi() {
+               if (rssi == AltosLib.MISSING)
+                       return 0;
+               return rssi;
+       }
 
-               ascent = (AltosLib.ao_flight_boost <= state &&
-                         state <= AltosLib.ao_flight_coast);
-               boost = (AltosLib.ao_flight_boost == state);
-
-               /* Only look at accelerometer data under boost */
-               if (boost && acceleration != AltosRecord.MISSING && (max_acceleration == AltosRecord.MISSING || acceleration > max_acceleration))
-                       max_acceleration = acceleration;
-               if (boost && accel_speed != AltosRecord.MISSING && accel_speed > max_accel_speed)
-                       max_accel_speed = accel_speed;
-               if (boost && baro_speed != AltosRecord.MISSING && baro_speed > max_baro_speed)
-                       max_baro_speed = baro_speed;
-
-               if (height != AltosRecord.MISSING && height > max_height)
-                       max_height = height;
-               elevation = 0;
-               range = -1;
-               gps_height = 0;
-               if (data.gps != null) {
-                       gps = data.gps;
-                       if (ngps > 0 && gps.locked) {
-                               double h = height;
-
-                               if (h == AltosRecord.MISSING) h = 0;
-                               from_pad = new AltosGreatCircle(pad_lat, pad_lon, 0, gps.lat, gps.lon, h);
-                               elevation = from_pad.elevation;
-                               range = from_pad.range;
-                               gps_height = gps.alt - pad_alt;
+       public void set_rssi(int rssi, int status) {
+               if (rssi != AltosLib.MISSING) {
+                       this.rssi = rssi;
+                       this.status = status;
+               }
+       }
+
+       public void set_received_time(long ms) {
+               received_time = ms;
+       }
+
+       public void set_gps(AltosGPS gps) {
+               super.set_gps(gps);
+               if (gps != null) {
+                       this.gps = gps;
+                       update_gps();
+                       set |= set_gps;
+               }
+       }
+
+       public AltosRotation    rotation;
+
+       public double   accel_ground_along, accel_ground_across, accel_ground_through;
+
+       void update_pad_rotation() {
+               if (cal_data().pad_orientation != AltosLib.MISSING && accel_ground_along != AltosLib.MISSING) {
+                       rotation = new AltosRotation(AltosIMU.convert_accel(accel_ground_across - cal_data().accel_zero_across),
+                                                    AltosIMU.convert_accel(accel_ground_through - cal_data().accel_zero_through),
+                                                    AltosIMU.convert_accel(accel_ground_along - cal_data().accel_zero_along),
+                                                    cal_data().pad_orientation);
+                       orient.set_computed(rotation.tilt(), time);
+               }
+       }
+
+       public void set_accel_ground(double ground_along, double ground_across, double ground_through) {
+               accel_ground_along = ground_along;
+               accel_ground_across = ground_across;
+               accel_ground_through = ground_through;
+               update_pad_rotation();
+       }
+
+       public double   last_imu_time;
+
+       private void update_orient() {
+               if (last_imu_time != AltosLib.MISSING) {
+                       double  t = time - last_imu_time;
+
+                       if (t > 0 && gyro_pitch != AltosLib.MISSING && rotation != null) {
+                               double  pitch = AltosConvert.degrees_to_radians(gyro_pitch) * t;
+                               double  yaw = AltosConvert.degrees_to_radians(gyro_yaw) * t;
+                               double  roll = AltosConvert.degrees_to_radians(gyro_roll) * t;
+
+                               rotation.rotate(pitch, yaw, roll);
+                               orient.set_computed(rotation.tilt(), time);
                        }
                }
+               last_imu_time = time;
+       }
+
+       private double  gyro_roll, gyro_pitch, gyro_yaw;
+
+       public void set_gyro(double roll, double pitch, double yaw) {
+               gyro_roll = roll;
+               gyro_pitch = pitch;
+               gyro_yaw = yaw;
+               update_orient();
+       }
+
+       private double accel_along, accel_across, accel_through;
+
+       public void set_accel(double along, double across, double through) {
+               accel_along = along;
+               accel_across = across;
+               accel_through = through;
+               update_orient();
+       }
+
+       public double accel_along() {
+               return accel_along;
+       }
+
+       public double accel_across() {
+               return accel_across;
+       }
+
+       public double accel_through() {
+               return accel_through;
+       }
+
+       public double gyro_roll() {
+               return gyro_roll;
+       }
+
+       public double gyro_pitch() {
+               return gyro_pitch;
+       }
+
+       public double gyro_yaw() {
+               return gyro_yaw;
+       }
+
+       private double mag_along, mag_across, mag_through;
+
+       public void set_mag(double along, double across, double through) {
+               mag_along = along;
+               mag_across = across;
+               mag_through = through;
+       }
+
+       public double mag_along() {
+               return mag_along;
+       }
+
+       public double mag_across() {
+               return mag_across;
+       }
+
+       public double mag_through() {
+               return mag_through;
+       }
+
+       public void set_companion(AltosCompanion companion) {
+               this.companion = companion;
+       }
+
+       public void set_acceleration(double acceleration) {
+               if (acceleration != AltosLib.MISSING) {
+                       this.acceleration.set_measured(acceleration, time);
+                       set |= set_data;
+               }
+       }
+
+       public void set_temperature(double temperature) {
+               if (temperature != AltosLib.MISSING) {
+                       this.temperature = temperature;
+                       set |= set_data;
+               }
+       }
+
+       public void set_battery_voltage(double battery_voltage) {
+               if (battery_voltage != AltosLib.MISSING) {
+                       this.battery_voltage = battery_voltage;
+                       set |= set_data;
+               }
+       }
+
+       public void set_pyro_voltage(double pyro_voltage) {
+               if (pyro_voltage != AltosLib.MISSING) {
+                       this.pyro_voltage = pyro_voltage;
+                       set |= set_data;
+               }
+       }
+
+       public void set_apogee_voltage(double apogee_voltage) {
+               if (apogee_voltage != AltosLib.MISSING) {
+                       this.apogee_voltage = apogee_voltage;
+                       set |= set_data;
+               }
+       }
+
+       public void set_main_voltage(double main_voltage) {
+               if (main_voltage != AltosLib.MISSING) {
+                       this.main_voltage = main_voltage;
+                       set |= set_data;
+               }
+       }
+
+       public void set_igniter_voltage(double[] voltage) {
+               this.igniter_voltage = voltage;
+       }
+
+       public void set_pyro_fired(int fired) {
+               this.pyro_fired = fired;
        }
 
-       public AltosState(AltosRecord cur) {
-               init(cur, null);
+       public AltosState() {
+               init();
        }
 
-       public AltosState (AltosRecord cur, AltosState prev) {
-               init(cur, prev);
+       public AltosState (AltosCalData cal_data) {
+               super(cal_data);
+               init();
        }
 }