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authorBdale Garbee <bdale@gag.com>2017-08-12 00:59:03 -0400
committerBdale Garbee <bdale@gag.com>2017-08-12 00:59:03 -0400
commit59c6167b9f1e9de30455af1632e9a0b65d64ad63 (patch)
treed27e4b3df53300081aa6ac0a30820c58a1c968ef /altoslib/AltosConvert.java
parent41eedf88751910ea9c0a299444fbac769edb8427 (diff)
parentfccfa54bb3b746cecfcdc1fd497cf736bbfe3ef3 (diff)
Merge branch 'branch-1.8' into debian
Diffstat (limited to 'altoslib/AltosConvert.java')
-rw-r--r--altoslib/AltosConvert.java112
1 files changed, 99 insertions, 13 deletions
diff --git a/altoslib/AltosConvert.java b/altoslib/AltosConvert.java
index 8617a12c..ed16541a 100644
--- a/altoslib/AltosConvert.java
+++ b/altoslib/AltosConvert.java
@@ -19,9 +19,14 @@
/*
* Sensor data conversion functions
*/
-package org.altusmetrum.altoslib_11;
+package org.altusmetrum.altoslib_12;
+
+import java.util.*;
public class AltosConvert {
+
+ public static final double gravity = 9.80665;
+
/*
* Pressure Sensor Model, version 1.1
*
@@ -42,20 +47,20 @@ public class AltosConvert {
* in Joules/(kilogram-Kelvin).
*/
- public static final double GRAVITATIONAL_ACCELERATION = -9.80665;
- public static final double AIR_GAS_CONSTANT = 287.053;
- public static final double NUMBER_OF_LAYERS = 7;
- public static final double MAXIMUM_ALTITUDE = 84852.0;
- public static final double MINIMUM_PRESSURE = 0.3734;
- public static final double LAYER0_BASE_TEMPERATURE = 288.15;
- public static final double LAYER0_BASE_PRESSURE = 101325;
+ private static final double GRAVITATIONAL_ACCELERATION = -gravity;
+ private static final double AIR_GAS_CONSTANT = 287.053;
+ private static final double NUMBER_OF_LAYERS = 7;
+ private static final double MAXIMUM_ALTITUDE = 84852.0;
+ private static final double MINIMUM_PRESSURE = 0.3734;
+ private static final double LAYER0_BASE_TEMPERATURE = 288.15;
+ private static final double LAYER0_BASE_PRESSURE = 101325;
/* lapse rate and base altitude for each layer in the atmosphere */
- public static final double[] lapse_rate = {
+ private static final double[] lapse_rate = {
-0.0065, 0.0, 0.001, 0.0028, 0.0, -0.0028, -0.002
};
- public static final int[] base_altitude = {
+ private static final int[] base_altitude = {
0, 11000, 20000, 32000, 47000, 51000, 71000
};
@@ -179,6 +184,18 @@ public class AltosConvert {
return altitude;
}
+ public static double degrees_to_radians(double degrees) {
+ if (degrees == AltosLib.MISSING)
+ return AltosLib.MISSING;
+ return degrees * (Math.PI / 180.0);
+ }
+
+ public static double radians_to_degrees(double radians) {
+ if (radians == AltosLib.MISSING)
+ return AltosLib.MISSING;
+ return radians * (180.0 / Math.PI);
+ }
+
public static double
cc_battery_to_voltage(double battery)
{
@@ -186,7 +203,7 @@ public class AltosConvert {
}
public static double
- cc_ignitor_to_voltage(double ignite)
+ cc_igniter_to_voltage(double ignite)
{
return ignite / 32767 * 15.0;
}
@@ -253,7 +270,15 @@ public class AltosConvert {
return 3.3 * mega_adc(raw) * (5.1 + 10.0) / 10.0;
}
- static double easy_mini_voltage(int sensor, int serial) {
+ static double easy_mini_2_adc(int raw) {
+ return raw / 4095.0;
+ }
+
+ static double easy_mini_1_adc(int raw) {
+ return raw / 32767.0;
+ }
+
+ static double easy_mini_1_voltage(int sensor, int serial) {
double supply = 3.3;
double diode_offset = 0.0;
@@ -267,7 +292,13 @@ public class AltosConvert {
if (serial < 1665)
diode_offset = 0.150;
- return sensor / 32767.0 * supply * 127/27 + diode_offset;
+ return easy_mini_1_adc(sensor) * supply * 127/27 + diode_offset;
+ }
+
+ static double easy_mini_2_voltage(int sensor) {
+ double supply = 3.3;
+
+ return easy_mini_2_adc(sensor) * supply * 127/27;
}
public static double radio_to_frequency(int freq, int setting, int cal, int channel) {
@@ -305,6 +336,10 @@ public class AltosConvert {
return 434.550 + channel * 0.100;
}
+ public static int telem_to_rssi(int telem) {
+ return telem / 2 - 74;
+ }
+
public static int[] ParseHex(String line) {
String[] tokens = line.split("\\s+");
int[] array = new int[tokens.length];
@@ -370,12 +405,48 @@ public class AltosConvert {
return psi * 6894.76;
}
+ public static double pa_to_psi(double pa) {
+ return pa / 6894.76;
+ }
+
+ public static double n_to_lb(double n) {
+ return n * 0.22480894;
+ }
+
+ public static double lb_to_n(double lb) {
+ return lb / 0.22480894;
+ }
+
+ public static double acceleration_from_sensor(double sensor, double plus_g, double minus_g, double ground) {
+
+ if (sensor == AltosLib.MISSING)
+ return AltosLib.MISSING;
+
+ if (plus_g == AltosLib.MISSING || minus_g == AltosLib.MISSING)
+ return AltosLib.MISSING;
+
+ if (ground == AltosLib.MISSING)
+ ground = plus_g;
+
+ double counts_per_g = (plus_g - minus_g) / 2.0;
+ double counts_per_mss = counts_per_g / gravity;
+
+ if (counts_per_mss == 0)
+ return AltosLib.MISSING;
+
+ return (sensor - ground) / counts_per_mss;
+ }
+
public static boolean imperial_units = false;
public static AltosDistance distance = new AltosDistance();
public static AltosHeight height = new AltosHeight();
+ public static AltosPressure pressure = new AltosPressure();
+
+ public static AltosForce force = new AltosForce();
+
public static AltosSpeed speed = new AltosSpeed();
public static AltosAccel accel = new AltosAccel();
@@ -390,6 +461,14 @@ public class AltosConvert {
public static AltosLongitude longitude = new AltosLongitude();
+ public static AltosRotationRate rotation_rate = new AltosRotationRate();
+
+ public static AltosStateName state_name = new AltosStateName();
+
+ public static AltosPyroName pyro_name = new AltosPyroName();
+
+ public static AltosUnits magnetic_field = null;
+
public static String show_gs(String format, double a) {
a = meters_to_g(a);
format = format.concat(" g");
@@ -407,6 +486,13 @@ public class AltosConvert {
return csum & 0xff;
}
+ public static int checksum(List<Byte> data, int start, int length) {
+ int csum = 0x5a;
+ for (int i = 0; i < length; i++)
+ csum += data.get(i+start);
+ return csum & 0xff;
+ }
+
public static double beep_value_to_freq(int value) {
if (value == 0)
return 4000;