Innovenergy_trunk/firmware/opt/victronenergy/dbus-fzsonick-48tl/data.py

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Python
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2023-02-16 12:57:06 +00:00
import config as cfg
# trick the pycharm type-checker into thinking Callable is in scope, not used at runtime
# noinspection PyUnreachableCode
if False:
from typing import Callable, List, Optional, AnyStr, Union, Any
class LedState(object):
"""
from page 6 of the '48TLxxx ModBus Protocol doc'
"""
off = 0
on = 1
blinking_slow = 2
blinking_fast = 3
class LedColor(object):
green = 0
amber = 1
blue = 2
red = 3
class ServiceSignal(object):
def __init__(self, dbus_path, get_value_or_const, unit=''):
# type: (str, Union[Callable[[],Any],Any], Optional[AnyStr] )->None
self.get_value_or_const = get_value_or_const
self.dbus_path = dbus_path
self.unit = unit
@property
def value(self):
try:
return self.get_value_or_const() # callable
except:
return self.get_value_or_const # value
class BatterySignal(object):
def __init__(self, dbus_path, aggregate, get_value, unit=''):
# type: (str, Optional[Callable[[List[any]],any]], Callable[[BatteryStatus],any], Optional[AnyStr] )->None
"""
A Signal holds all information necessary for the handling of a
certain datum (e.g. voltage) published by the battery.
:param dbus_path: str
object_path on DBus where the datum needs to be published
:param aggregate: Iterable[any] -> any
function that combines the values of multiple batteries into one.
e.g. sum for currents, or mean for voltages
:param get_value: (BatteryStatus) -> any
function to extract the datum from the modbus record,
"""
self.dbus_path = dbus_path
self.aggregate = aggregate
self.get_value = get_value
self.unit = unit
class Battery(object):
""" Data record to hold hardware and firmware specs of the battery """
def __init__(self, slave_address, hardware_version, firmware_version, bms_version, ampere_hours):
# type: (int, str, str, str, int) -> None
self.slave_address = slave_address
self.hardware_version = hardware_version
self.firmware_version = firmware_version
self.bms_version = bms_version
self.ampere_hours = ampere_hours
self.n_strings = int(ampere_hours/cfg.AH_PER_STRING)
self.i_max = self.n_strings * cfg.I_MAX_PER_STRING
self.v_min = cfg.V_MIN
self.v_max = cfg.V_MAX
self.r_int_min = cfg.R_STRING_MIN / self.n_strings
self.r_int_max = cfg.R_STRING_MAX / self.n_strings
def __str__(self):
return 'slave address = {0}\nhardware version = {1}\nfirmware version = {2}\nbms version = {3}\nampere hours = {4}'.format(
self.slave_address, self.hardware_version, self.firmware_version, self.bms_version, str(self.ampere_hours))
class BatteryStatus(object):
"""
record holding the current status of a battery
"""
def __init__(self, battery, modbus_data):
# type: (Battery, List[int]) -> None
self.battery = battery
self.modbus_data = modbus_data
def serialize(self):
# type: () -> str
b = self.battery
s = cfg.INNOVENERGY_PROTOCOL_VERSION + '\n'
s += cfg.INSTALLATION_NAME + '\n'
s += str(b.slave_address) + '\n'
s += b.hardware_version + '\n'
s += b.firmware_version + '\n'
s += b.bms_version + '\n'
s += str(b.ampere_hours) + '\n'
for d in self.modbus_data:
s += str(d) + '\n'
return s
def read_file_one_line(file_name):
with open(file_name, 'r') as file:
return file.read().replace('\n', '').replace('\r', '').strip()