def processHex(self, strhex):
##All second generation beacon messages must be EXACTLY 250 bits
##in length for the program to function properly.
self.bits = Func.hex2bin(strhex)
if len(self.bits) == 250 or len(self.bits) == 202:
self.tablebin = []
self.rotatingbin = []
##Add an additional bit to ensure that bits in array line up with bits in documentation
self.bits = "0" + self.bits
##BIT 1-20 Type Approval Certificate #
self.tac = Func.bin2dec(self.bits[1:21])
self.tablebin.append([
'1-20', self.bits[1:21], 'Type Approval Certificate #:',
str(self.tac)
])
##BIT 21-30 Serial Number
self.serialNum = Func.bin2dec(self.bits[21:31])
self.tablebin.append([
'21-30', self.bits[21:31], 'Serial Number:',
str(self.serialNum)
])
##BIT 31-40 Country code
self.countryCode = Func.bin2dec(self.bits[31:41])
self.countryName = Func.countryname(self.countryCode)
self.tablebin.append([
'31-40', self.bits[31:41], 'Country code:',
str(self.countryCode) + ' ' + str(self.countryName)
])
##BIT 41 Status of homing device
self.status = Func.homing(self.bits[41])
self.tablebin.append(
['41', self.bits[41], 'Status of homing device:', self.status])
##BIT 42 Self-test function
self.selfTestStatus = Func.selfTest(self.bits[42])
self.tablebin.append([
'42', self.bits[42], 'Self-test function:', self.selfTestStatus
])
##BIT 43 User cancellation
self.cancel = Func.cancellation(self.bits[43])
self.tablebin.append(
['43', self.bits[43], 'User cancellation:', self.cancel])
##BIT 44-90 Encoded GNSS location
self.latitude = Func.getlatitude(self.bits[44:67])
self.tablebin.append(
['44-66', self.bits[44:67], 'Latitude:', self.latitude[0]])
self.longitude = Func.getlongitude(self.bits[67:91])
self.tablebin.append(
['67-90', self.bits[67:91], 'Longitude:', self.longitude[0]])
self.location = (self.latitude[1], self.longitude[1])
################################
# #
# BIT 91-137 VESSEL ID FIELD #
# #
################################
self.vesselID = self.bits[91:94]
##############################################
# Vessel 0: No aircraft or maritime identity #
##############################################
if self.vesselID == '000':
self.tablebin.append([
'91-93', self.bits[91:94], 'Vessel ID:',
'No aircraft or maritime identity'
])
if Func.checkzeros(self.bits[94:138]):
self.tablebin.append(
['94-137', self.bits[94:138], 'Spare:', 'All 0 - OK'])
else:
self.tablebin.append([
'94-137', self.bits[94:138], 'Spare:',
'ERROR: Bits 94-137 should be 0'
])
###########################
# Vessel 1: Maritime MMSI #
###########################
elif self.vesselID == '001':
self.tablebin.append(
['91-93', self.bits[91:94], 'Vessel ID:', 'MMSI'])
self.mmsi = Func.bin2dec(self.bits[94:124])
if self.mmsi == 111111:
self.tablebin.append([
'94-123', self.bits[94:124], 'MMSI:',
'No MMSI available'
])
else:
self.mmsi_string = str(self.mmsi).zfill(9)
self.tablebin.append([
'94-123', self.bits[94:124],
'Unique ship station identity M1I2D3X4X5X6X7X8X9:',
self.mmsi_string
])
self.mmsi_country = Func.countryname(
int(self.mmsi_string[0:3]))
self.tablebin.append([
'', '', 'Flag state of vessel:',
self.mmsi_string[0:3] + ' ' + self.mmsi_country
])
self.tablebin.append([
'', '', 'Unique vessel number:', self.mmsi_string[3:]
])
self.epirb_ais = Func.bin2dec(self.bits[124:138])
if self.epirb_ais == 10922:
self.tablebin.append([
'124-137', self.bits[124:138],
'EPIRB-AIS System Identity:', 'No EPIRB-AIS System'
])
else:
self.epirb_ais_str = str(self.epirb_ais).zfill(4)
self.epirb_ais_str = '974' + self.mmsi_string[
3:5] + self.epirb_ais_str
self.tablebin.append([
'124-137', self.bits[123:137],
'EPIRB-AIS System Identity:', self.epirb_ais_str
])
#############################
# Vessel 2: Radio Call Sign #
#############################
elif self.vesselID == '010':
self.tablebin.append([
'91-93', self.bits[91:94], 'Vessel ID:', 'Radio Call Sign'
])
self.callsign = Func.getCallsign(self.bits[94:136])
self.tablebin.append([
'94-135', self.bits[94:136], 'Radio Callsign:',
self.callsign
])
if Func.checkzeros(self.bits[136:138]):
self.tablebin.append([
'136-137', self.bits[136:138], 'Spare:', 'All 0 - OK'
])
else:
self.tablebin.append([
'136-137', self.bits[136:138], 'Spare:',
'ERROR: Bits 136-137 should be all 0s'
])
#########################################################
# Vessel 3: Aricraft Registration Marking (Tail Number) #
#########################################################
elif self.vesselID == '011':
self.tablebin.append([
'91-93', self.bits[91:94], 'Vessel ID:',
'Aircraft Registration Marking (Tail Number)'
])
self.tailnum = Func.getTailNum(self.bits[94:136])
self.tablebin.append([
'94-135', self.bits[94:136],
'Aircraft Registration Marking:', self.tailnum
])
if Func.checkzeros(self.bits[135:137]):
self.tablebin.append(
['136-137', self.bits[136:138], 'Spare:', 'OK'])
else:
self.tablebin.append([
'136-137', self.bits[136:138], 'Spare:',
'ERROR: Bits 136-137 should be all 0s'
])
##############################################
# Vessel 4: Aircraft Aviation 24 Bit Address #
##############################################
elif self.vesselID == '100':
self.tablebin.append([
'91-93', self.bits[91:94], 'Vessel ID:',
'Aircraft Aviation 24 Bit Address'
])
self.aviationBitAddress = Func.bin2dec(self.bits[93:117])
self.tablebin.append([
'94-117', self.bits[94:118], 'Aviation 24 bit address:',
str(self.aviationBitAddress)
])
if Func.checkzeros(self.bits[117:137]):
self.tablebin.append(
['118-137', self.bits[118:138], 'Spare:', 'OK'])
else:
self.tablebin.append([
'118-137', self.bits[118:138], 'Spare:',
'ERROR: Bits 118-137 following aviation 24 bit address should be 0'
])
#################################################
# Vessel 5: Aircraft Operator and Serial Number #
#################################################
elif self.vesselID == '101':
self.tablebin.append([
'91-93', self.bits[91:94], 'Vessel ID:',
'Aircraft Operator and Serial Number'
])
self.operator = Func.baudot2str(self.bits[94:112], 3)
self.serialnum = Func.bin2dec(self.bits[112:124])
self.tablebin.append([
'94-111', self.bits[94:112], 'Aircraft operator:',
self.operator
])
self.tablebin.append([
'112-123', self.bits[112:124], 'Serial number:',
str(self.serialnum)
])
if Func.checkones(self.bits[124:138]):
self.tablebin.append(
['124-137', self.bits[124:138], 'Spare:', 'OK'])
else:
self.tablebin.append([
'124-137', self.bits[124:138], 'Spare:',
'ERROR: Bits 124-137 following aircraft operator and serial numbers should be 1'
])
##########################
# Other Vessel IDs Spare #
##########################
else:
self.tablebin.append(
['91-93', self.bits[91:94], 'Vessel ID:', 'Spare'])
##BIT 138-154 Spare bits [137-153]
if Func.checkones(self.bits[138:155]):
self.tablebin.append(
['138-154', self.bits[138:155], 'Spare:', 'OK'])
else:
self.tablebin.append([
'138-154', self.bits[138:155], 'Spare:',
'ERROR: Bits 138-154 should be 1s'
])
#######################################
# #
# BIT 155-202 48 BIT ROTATING FIELD #
# #
#######################################
self.rotatingID = Func.bin2dec(self.bits[155:159])
######################################################
# Rotating Field 0: C/S G.008 Objective Requirements #
######################################################
if self.rotatingID == 0:
self.tablebin.append([
'155-158 (Rotating field 1-4)', self.bits[155:159],
'Rotating Field Type:',
'(#0) C/S G.008 Objective Requirements'
])
self.rotatingbin = rotating.rotating0(self.bits[155:203])
########################################
# Rotating Field 1: Inflight Emergency #
########################################
elif self.rotatingID == 1:
self.tablebin.append([
'155-158 (Rotating field 1-4)', self.bits[155:159],
'Rotating Field Type:', '(#1) Inflight Emergency'
])
self.rotatingbin = rotating.rotating1(self.bits[155:203])
#########################
# Rotating Field 2: RLS #
#########################
elif self.rotatingID == 2:
self.tablebin.append([
'155-158 (Rotating field 1-4)', self.bits[155:159],
'Rotating Field Type:', '(#2) RLS'
])
self.rotatingbin = rotating.rotating2(self.bits[155:203])
##################################
# Rotating Field 3: National Use #
##################################
elif self.rotatingID == 3:
self.tablebin.append([
'155-158 (Rotating field 1-4)', self.bits[155:159],
'Rotating Field Type:', '(#3) National Use'
])
self.rotatingbin = rotating.rotating3(self.bits[155:203])
###########################################
# Rotating Field 15: Cancellation Message #
###########################################
elif self.rotatingID == 15:
self.tablebin.append([
'155-158 (Rotating field 1-4)', self.bits[155:159],
'Rotating Field Type:', '(#15) Cancellation Message'
])
self.rotatingbin = rotating.rotating15(self.bits[155:203])
##################################
# All other roating fields spare #
##################################
else:
self.tablebin.append([
'155-158 (Rotating field 1-4)', self.bits[155:159],
'Rotating Field Type:', 'Spare'
])
##Add rotating field data to our list
self.tablebin.extend(self.rotatingbin)
####################
# BEACON 23 HEX ID #
####################
self.hexID = []
##Hex ID BIT 1 = fixed binary 1
self.hexID.append('1')
##Hex ID BIT 2-11 = BITS 31-40 (C/S Country Code)
self.hexID.append(self.bits[31:41])
##Hex ID BIT 12 = fixed binary 1
self.hexID.append('1')
##Hex ID BIT 13 = fixed binary 0
self.hexID.append('0')
##Hex ID BIT 14 = fixed binary 1
self.hexID.append('1')
##Hex ID BIT 15-34 = BITS 1-20 (C/S TAC No)
self.hexID.append(self.bits[1:21])
##Hex ID BIT 35-44 = BITS 21-30 (Beacon Serial Number)
self.hexID.append(self.bits[21:31])
##Hex ID BIT 45-47 = BITS 91-93 (Aircraft/Vessel ID Type)
self.hexID.append(self.bits[91:94])
##Hex ID BIT 48-91 = BITS 94-137 (Aircraft/Vessel ID)
self.hexID.append(self.bits[94:138])
##Hex ID BIT 92 = fixed binary 1
self.hexID.append('1')
##Join list together and convert to Hexadecimal
self.beaconHexID = Func.bin2hex(''.join(self.hexID))
##Add the 23 Hex ID to our table
self.tablebin.append(
['', '', 'Beacon 23 Hex ID:', self.beaconHexID])
####################################
# 48-BIT BCH ERROR CORRECTING CODE #
####################################
if len(self.bits) == 251:
##Calculate the BCH
self.calculatedBCH = Func.calcBCH(self.bits[1:], 0, 202, 250)
##Compare to the BCH in the beacon message
self.BCHerrors = Func.errors(self.calculatedBCH,
self.bits[203:])
##Write the number of errors to our table
self.tablebin.append(
['', '', 'Number of BCH errors:',
str(self.BCHerrors)])
else:
self.type = (
'Hex string length of ' + str(len(strhex)) + '.' +
'\nBit string length of ' + str(len(self.bits)) + '.' +
'\nLength of First Gen Beacon Hex String must be 15, 22 or 30'
+ '\nLength of Second Gen Beacon Bit String must be 250 bits')
raise Gen2Error('LengthError', self.type)
def processHex(self, strhex):
##All second generation beacon messages must be EXACTLY 250 bits
##in length for the program to function properly.
self.bits = Func.hex2bin(strhex)
self.tablebin = []
self.rotatingbin = []
if len(self.bits) == 252 or len(self.bits) == 202 or len(
self.bits) == 204 or len(self.bits) == 250:
##Add an additional bit to ensure that bits in array line up with bits in documentation
self.bits = "0" + self.bits
##BIT 1-20 Type Approval Certificate #
self.tac = Func.bin2dec(self.bits[1:21])
self.tablebin.append([
'1-20', self.bits[1:21], 'Type Approval Certificate #:',
str(self.tac)
])
##BIT 21-30 Serial Number
self.serialNum = Func.bin2dec(self.bits[21:31])
self.tablebin.append([
'21-30', self.bits[21:31], 'Serial Number:',
str(self.serialNum)
])
##BIT 31-40 Country code
self.countryCode = Func.bin2dec(self.bits[31:41])
self.countryName = Func.countryname(self.countryCode)
self.tablebin.append([
'31-40', self.bits[31:41], 'Country code:',
str(self.countryCode) + ' ' + str(self.countryName)
])
##BIT 41 Status of homing device
self.status = Func.homing(self.bits[41])
self.tablebin.append(
['41', self.bits[41], 'Status of homing device:', self.status])
##BIT 42 Self-test function
self.selfTestStatus = Func.selfTest(self.bits[42])
self.tablebin.append([
'42', self.bits[42], 'Self-test function:', self.selfTestStatus
])
##BIT 43 User cancellation
self.cancel = Func.cancellation(self.bits[43])
self.tablebin.append(
['43', self.bits[43], 'User cancellation:', self.cancel])
##BIT 44-90 Encoded GNSS location
self.latitude = Func.getlatitude(self.bits[44:67])
self.tablebin.append(
['44-66', self.bits[44:67], 'Latitude:', self.latitude[0]])
self.longitude = Func.getlongitude(self.bits[67:91])
self.tablebin.append(
['67-90', self.bits[67:91], 'Longitude:', self.longitude[0]])
self.location = (self.latitude[1], self.longitude[1])
################################
# #
# BIT 91-137 VESSEL ID FIELD #
# #
################################
self.vesselIDfill(0, self.bits[91:138])
##BIT 138-154 Spare bits [137-154]
if Func.checkones(self.bits[138:155]):
self.tablebin.append(
['138-154', self.bits[138:155], 'Spare:', 'OK'])
else:
self.tablebin.append([
'138-154', self.bits[138:155], 'Spare:',
'ERROR: Bits 138-154 should be 1s'
])
#######################################
# #
# BIT 155-202 48 BIT ROTATING FIELD #
# #
#######################################
self.rotatingID = Func.bin2dec(self.bits[155:159])
######################################################
# Rotating Field 0: C/S G.008 Objective Requirements #
######################################################
if self.rotatingID == 0:
self.tablebin.append([
'155-158 (Rotating field 1-4)', self.bits[155:159],
'Rotating Field Type:',
'(#0) C/S G.008 Objective Requirements'
])
self.rotatingbin = rotating.rotating0(self.bits[155:203])
########################################
# Rotating Field 1: Inflight Emergency #
########################################
elif self.rotatingID == 1:
self.tablebin.append([
'155-158 (Rotating field 1-4)', self.bits[155:159],
'Rotating Field Type:', '(#1) Inflight Emergency'
])
self.rotatingbin = rotating.rotating1(self.bits[155:203])
#########################
# Rotating Field 2: RLS #
#########################
elif self.rotatingID == 2:
self.tablebin.append([
'155-158 (Rotating field 1-4)', self.bits[155:159],
'Rotating Field Type:', '(#2) RLS'
])
self.rotatingbin = rotating.rotating2(self.bits[155:203])
##################################
# Rotating Field 3: National Use #
##################################
elif self.rotatingID == 3:
self.tablebin.append([
'155-158 (Rotating field 1-4)', self.bits[155:159],
'Rotating Field Type:', '(#3) National Use'
])
self.rotatingbin = rotating.rotating3(self.bits[155:203])
###########################################
# Rotating Field 15: Cancellation Message #
###########################################
elif self.rotatingID == 15:
self.tablebin.append([
'155-158 (Rotating field 1-4)', self.bits[155:159],
'Rotating Field Type:', '(#15) Cancellation Message'
])
self.rotatingbin = rotating.rotating15(self.bits[155:203])
##################################
# All other roating fields spare #
##################################
else:
self.tablebin.append([
'155-158 (Rotating field 1-4)', self.bits[155:159],
'Rotating Field Type:', 'Spare'
])
##Add rotating field data to our list
self.tablebin.extend(self.rotatingbin)
####################
# BEACON 23 HEX ID #
####################
self.hexID = []
##Hex ID BIT 1 = fixed binary 1
self.hexID.append('1')
##Hex ID BIT 2-11 = BITS 31-40 (C/S Country Code)
self.hexID.append(self.bits[31:41])
##Hex ID BIT 12 = fixed binary 1
self.hexID.append('1')
##Hex ID BIT 13 = fixed binary 0
self.hexID.append('0')
##Hex ID BIT 14 = fixed binary 1
self.hexID.append('1')
##Hex ID BIT 15-34 = BITS 1-20 (C/S TAC No)
self.hexID.append(self.bits[1:21])
##Hex ID BIT 35-44 = BITS 21-30 (Beacon Serial Number)
self.hexID.append(self.bits[21:31])
##Hex ID BIT 45-47 = BITS 91-93 (Aircraft/Vessel ID Type)
self.hexID.append(self.bits[91:94])
##Hex ID BIT 48-91 = BITS 94-137 (Aircraft/Vessel ID)
self.hexID.append(self.bits[94:138])
##Hex ID BIT 92 = fixed binary 1
self.hexID.append('1')
##Join list together and convert to Hexadecimal
self.beaconHexID = Func.bin2hex(''.join(self.hexID))
##Add the 23 Hex ID to our table
self.tablebin.append(
['', '', 'Beacon 23 Hex ID:', self.beaconHexID])
####################################
# 48-BIT BCH ERROR CORRECTING CODE #
####################################
if len(self.bits) == 253:
self.tablebin.append(
['203-204 (padding)', self.bits[203:205], '', ''])
self.tablebin.append([
'205: (bch)', self.bits[205:], 'Encoded BCH', 'Encoded BCH'
])
##Calculate the BCH
self.calculatedBCH = Func.calcBCH(self.bits[1:], 0, 202, 250)
self.tablebin.append(
['Calculated', self.calculatedBCH, 'Computed', ''])
##Compare to the BCH in the beacon message
self.BCHerrors = Func.errors(self.calculatedBCH,
self.bits[205:])
##Write the number of errors to our table
self.tablebin.append(
['', '', 'Number of BCH errors:',
str(self.BCHerrors)])
elif len(self.bits) == 92:
self.type = (
'Hex string length of {}. \nBit length of {}. \nThis is a second generation beacon UIN'
.format(str(len(strhex)), str(len(self.bits))))
##Add an additional bit to ensure that bits in array line up with bits in documentation
self.bits = "0" + self.bits
self.tablebin.append(['Unique ID', 'Second Generation', '', ''])
self.tablebin.append([
'1', self.bits[1], 'should be 1', ['ERROR',
'OK'][int(self.bits[1])]
])
##BIT 2-11 Country code
self.countryCode = Func.bin2dec(self.bits[2:12])
self.countryName = Func.countryname(self.countryCode)
self.tablebin.append([
'2-11', self.bits[2:12], 'Country code:',
str(self.countryCode) + ' ' + str(self.countryName)
])
##BIT 12-14 Should be 101
if self.bits[12:15] == '101':
status_check = 'OK'
else:
status_check = 'ERROR'
self.tablebin.append(
['12-14', self.bits[12:15], 'Should be 101', status_check])
##BIT 15-34 Type Approval Certificate #
self.tac = Func.bin2dec(self.bits[15:35])
self.tablebin.append([
'15-34', self.bits[15:35], 'Type Approval Certificate #',
str(self.tac)
])
##BIT 35-44 Beacon Serial Number
self.serialNum = Func.bin2dec(self.bits[35:45])
self.tablebin.append([
'35-44', self.bits[35:45], 'Serial Number',
str(self.serialNum)
])
##BIT 45-91 Aircraft / Vessel ID
self.vesselIDfill(46, self.bits[45:92])
##BIT 92 Fixed value 1
self.tablebin.append(
['92', self.bits[92], 'Fixed 1', self.bits[92] == '1'])
else:
self.type = (
'Hex string length of ' + str(len(strhex)) + '.' +
'\nBit string length of ' + str(len(self.bits)) + '.' +
'\nLength of First Gen Beacon Hex String must be 15, 22 or 30'
+ '\nLength of Second Gen Beacon Bit String must be 250 bits')
raise Gen2Error('LengthError', self.type)