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Natalia/parse gps #9

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2383e3f
Parsed GPS data and fixed bug in code
Feb 1, 2020
191bdf5
Added comment about latitude/longitude calculation
Feb 1, 2020
266c404
Fixed print formats for GPS data
Feb 1, 2020
86cd77e
Re-added excel formatting changes
Mar 7, 2020
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98 changes: 64 additions & 34 deletions parseData.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,12 +3,15 @@
import binascii
import csv

phases = ["NA", "PRELAUNCH", "ARM", "BURN", "COAST", "DROGUE_DESCENT", "MAIN_DESCENT", "POSTLAUNCH",
"ABORT_COMMAND_RECEIVED", "ABORT_COMMUNICATION_ERROR", "ABORT_OXIDIZER_PRESSURE", "ABORT_UNSPECIFIED_REASON"]
valveStatus = ["NA","Closed", "Open"]
order = 'big'
class AvionicsData:
def __init__(self):
self.imu = [0] * 9
self.bar = [0] * 2
self.gps = [0] * 4
self.gps = [0] * 8
self.oxi = -1
self.cmb = -1
self.phs = -1
Expand All @@ -17,25 +20,31 @@ def __init__(self):
self.lowerVnt = -1

def __str__(self):
phases = ["NA", "PRELAUNCH", "ARM", "BURN", "COAST", "DROGUE_DESCENT", "MAIN_DESCENT", "POSTLAUNCH",
"ABORT_COMMAND_RECEIVED", "ABORT_COMMUNICATION_ERROR", "ABORT_OXIDIZER_PRESSURE", "ABORT_UNSPECIFIED_REASON"]
valveStatus = ["NA","Closed", "Open"]

string="IMU - ACCEL:\t\t"+ str(self.imu[0:3])+" mg"+"\n"
string+="IMU - GYRO:\t\t"+ str(self.imu[3:6])+" mdps"+"\n"
string+="BAR - PRESS:\t\t"+ str(self.bar[0]/100) +" mbar"+"\n"
string+="BAR - TEMP:\t\t"+ str(self.bar[1]/100)+" degrees C"+"\n"
string+="GPS - TIME:\t\t%06d UTC" % self.gps[0] + "\n"
#Convert GPS coordinates to latitude/longitude that Google Maps accepts
string+="GPS - LAT:\t\t%.5f" % (self.gps[1] + self.gps[2]/100000/60) + " " + str(self.gps[3]) + "\n"
string+="GPS - LONG:\t\t%.5f" % (self.gps[4] + self.gps[5]/100000/60) + " " + str(self.gps[6]) + "\n"
string+="GPS - ALT:\t\t" + str(self.gps[7]) + " m" + "\n"
string+="OXI - P:\t\t"+ str(self.oxi/1000)+" psi"+"\n"
string+="CMB - P:\t\t"+ str(self.cmb/1000)+" psi"+"\n"
string+="PHS - PHASE:\t\t"+ str(phases[self.phs+1])+"\n"
string+="Inj Valve:\t\t" + str(valveStatus[self.injValve+1])+"\n"
string+="Lower Vent:\t\t" + str(valveStatus[self.lowerVnt+1])+"\n"

return string
def writeToCSV(self):
with open('fligthData.csv', 'a') as csvfile:
spamwriter = csv.writer(csvfile, delimiter=',', quoting=csv.QUOTE_MINIMAL)
spamwriter.writerow([str(self.imu[0]), str(self.imu[1]), str(self.imu[2]), str(self.imu[3]), str(self.imu[4]), str(self.imu[5]), str(self.bar[0]), str(self.bar[1])])
spamwriter = csv.writer(csvfile, delimiter=',', quoting=csv.QUOTE_MINIMAL)
spamwriter.writerow([str(self.imu[0:3]), str(self.imu[3:6]), str(self.bar[0]/100), str(self.bar[1]/100), str(self.gps[0]), \
str(self.gps[1]+(self.gps[2]/100000/60)) + " " + str(self.gps[3]), str(self.gps[4] + self.gps[5]/100000/60) + " " + str(self.gps[6]), \
str(self.gps[7]), str(self.oxi/1000), str(self.cmb/1000), \
str(phases[self.phs+1]), str(valveStatus[self.injValve+1]), str(valveStatus[self.lowerVnt+1])])

return string

def twos_complement(hexstr,bits):
value = int(hexstr,16)
Expand All @@ -53,40 +62,52 @@ def readSerial(ser,data):
i = 0
print(line)
while(i<len(line)):
# IMU Data
#IMU Data
if((line[i:i+8]=='31313131') and (len(line)-i>=81)):
if(line[i+80:i+82]=='00'):
print(line[i:i+82])
data.imu[0] = twos_complement(line[i+8:i+16], 32)
data.imu[1] = twos_complement(line[i+16:i+24], 32)
data.imu[2] = twos_complement(line[i+24:i+32], 32)
data.imu[3] = twos_complement(line[i+32:i+40], 32)
data.imu[4] = twos_complement(line[i+40:i+48], 32)
data.imu[5] = twos_complement(line[i+48:i+56], 32)
data.imu[0] = twos_complement(line[i+8:i+16], 32) #accel x
data.imu[1] = twos_complement(line[i+16:i+24], 32) #accel y
data.imu[2] = twos_complement(line[i+24:i+32], 32) #accel z
data.imu[3] = twos_complement(line[i+32:i+40], 32) #gyro x
data.imu[4] = twos_complement(line[i+40:i+48], 32) #gyro y
data.imu[5] = twos_complement(line[i+48:i+56], 32) #gyro z
i+=81
else: i+=1

# Barometer Data
#Barometer Data
elif((line[i:i+8])=='32323232' and len(line)-i>=25):
if(line[i+24:i+26]=='00'):
print(line[i:i+26])
data.bar[0] = twos_complement(line[i+8:i+16], 32)
data.bar[1] = twos_complement(line[i+16:i+24], 32)
data.bar[0] = twos_complement(line[i+8:i+16], 32) #pressure
data.bar[1] = twos_complement(line[i+16:i+24], 32) #temp
i+=25
else:
i+=1

#GPS Data
elif((line[i:i+8]=='33333333') and (len(line)-i>=41)):
if(line[i+40:i+42]=='00'):
print(line[i:i+42])
data.gps[0] = twos_complement(line[i+8:i+16], 32)
data.gps[1] = twos_complement(line[i+16:i+24], 32)
data.gps[2] = twos_complement(line[i+24:i+32], 32)
data.gps[3] = twos_complement(line[i+32:i+40], 32)
i+=41
else:
i+=1
elif((line[i:i+8]=='33333333') and (len(line)-i>=57)):
if(line[i+56:i+58]=='00'):
data.gps[0] = (twos_complement(line[i+8:i+16], 32))/100 #
data.gps[1] = (twos_complement(line[i+16:i+24], 32))
data.gps[2] = (twos_complement(line[i+24:i+32], 32))
if data.gps[1] < 0:
data.gps[3] = "S"
data.gps[1] *= -1
data.gps[2] *= -1
else:
data.gps[3] = "N"
data.gps[4] = (twos_complement(line[i+32:i+40], 32))
data.gps[5] = (twos_complement(line[i+40:i+48], 32))
if data.gps[4] < 0:
data.gps[6] = "W"
data.gps[4] *= -1
data.gps[5] *= -1
else:
data.gps[6] = "E"
data.gps[7] = (twos_complement(line[i+48:i+56], 32))/10
i+=57
else: i+=1

#Oxidizer Tank Pressure
elif((line[i:i+8]=='34343434') and (len(line)-i>=17)):
Expand All @@ -103,38 +124,47 @@ def readSerial(ser,data):
else: i+=1

#Flight Phase
elif((line[i:i+8]=='36363636') and (len(line)-i>=13)):
elif((line[i:i+8]=='36363636') and (len(line)-i>=11)):
if(line[i+10:i+12]=='00'):
data.phs = int(line[i+8:i+10], 16)
i+=12
i+=11
else: i+=1

#Injection Valve Status
elif((line[i:i+8]=='38383838') and (len(line)-i>=13)):
elif((line[i:i+8]=='38383838') and (len(line)-i>=11)):
if(line[i+10:i+12]=='00'):
data.injValve = int(line[i+8:i+10], 16)
i+=12
i+=11
else: i+=1

#Lower Vent Valve
elif((line[i:i+8]=='39393939') and (len(line)-i>=13)):
elif((line[i:i+8]=='39393939') and (len(line)-i>=11)):
if(line[i+10:i+12]=='00'):
data.lowerVnt = int(line[i+8:i+10], 16)
i+=12
i+=11
else: i+=1

#No packet detected
else: i+=1

print(data)
data.writeToCSV()
ser.flushInput()


if __name__ == "__main__":
ser = None
data = AvionicsData()
with open('fligthData.csv', 'a') as csvheader:
spamwriter = csv.writer(csvheader, delimiter=',', quoting=csv.QUOTE_MINIMAL)
spamwriter.writerow(["Acceleration(mg)", "Gyro(mdps)", "Pressure(mbar)","Temp(C)", "GPS Time(UTC)", "Latitude","Longitude", \
"Altitude(m)", "Oxi Pressure(psi)", "Combu Pressure(psi)","Phase", "Inj Valve", "Lower Vent"])
while(True):
port = input('Enter a Serial Port to connect to:') #Linux: /dev/ttyUSBx, Windows: COMx
ser = serial.Serial(port, 9600, timeout=0)

ser.flushInput()

while(ser!=None):
time.sleep(1)
time.sleep(0.5)
readSerial(ser, data)