Package kenozooid :: Package driver :: Package ostc :: Module parser

Module parser

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OSTC dive computer binary data parsing routines.

Functions

get_data(data)
Get status information and profile raw data, see Data named tuple.

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profiles(data)
Split profile data into individual dive profiles using profile regular expression RE_PROFILES.

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header(data)
Parse OSTC dive profile header, see DiveHeader named tuple.

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dive_data(header, data)
Parse OSTC dive profile data block.

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sample_data(data, i, sample, div_sample, div_count)
Parse sample item like temperature, deco, etc.

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divisor(value)
Split divisor value into divisor sample information and divisor byte count.

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flag_byte(value)
Split profile flag byte into

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Variables
	log = `logging.getLogger('kenozooid.driver.ostc')`
	Data = `namedtuple('Data', 'preamble eeprom voltage ver1 ver2 p...`
	FMT_STATUS = `'<6s256sHbb'`
	LEN_STATUS = `calcsize(FMT_STATUS)`
	EEPROMData = `namedtuple('EEPROMData', 'serial dives data')`
	FMT_EEPROM = `'<HH252s'`
	RE_PROFILES = `re.compile(b'(\xfa\xfa' b'(\x20.{42}\|\x21.{52})\...`
	DiveHeader = `namedtuple('DiveHeader', "...`
	FMT_DIVE_HEADER = `'<6BHHB' 'HHH' '10B' 'BBB' 'BBHB4B' 'BBBB'`
	DiveHeader_191 = `namedtuple('DiveHeader_191', DiveHeader._fiel...`
	FMT_DIVE_HEADER_191 = `FMT_DIVE_HEADER+ 'HH' 'BB' 'BBBB'`
	DiveSample = `namedtuple('DiveSample', 'depth alarm gas_set_o2 ...`

Function Details

profiles(data)

source code

Split profile data into individual dive profiles using profile regular expression RE_PROFILES.

Collection of tuples (header, block) is returned

header

dive profile header

block

dive profile block data

sample_data(data, i, sample, div_sample, div_count)

source code

Parse sample item like temperature, deco, etc.

Parameters:

data - Profile block data.
i - Profile block data index, where sample item can be found.
sample - Number of dive sample (starts from 1).
div_sample - Divisor sampling information.
div_count - Sample item data bytes count.

flag_byte(value)

source code

Split profile flag byte into

amount of additional bytes of extended information
event byte presence, which is zero or one

Variables Details

Data

Value:

namedtuple('Data', 'preamble eeprom voltage ver1 ver2 profiles')

RE_PROFILES

Value:

re.compile(b'(\xfa\xfa' b'(\x20.{42}|\x21.{52})\xfb\xfb)' b'(.+?\xfd\x
fd)', re.DOTALL)

DiveHeader

Value:

namedtuple('DiveHeader', """\
version month day year hour minute max_depth dive_time_m dive_time_s
min_temp surface_pressure desaturation
gas1_o2 gas1_he gas2_o2 gas2_he gas3_o2 gas3_he gas4_o2 gas4_he gas5_o
2 gas5_he
gas6_o2 gas6_he gas
ver1 ver2 voltage sampling div_temp div_deco div_gf div_ppo2
div_deco_debug div_cns salnity max_cns
...

DiveHeader_191

Value:

namedtuple('DiveHeader_191', DiveHeader._fields+('avg_depth', 'dive_ti
me_total_s', 'gf_lo', 'gf_hi', 'deco_type', 'reserved1', 'reserved2', 
'reserved3'))

DiveSample

Value:

namedtuple('DiveSample', 'depth alarm gas_set_o2 gas_set_he' ' current
_gas setpoint temp deco_depth deco_time gf ppo2 cns')