Rename kamil_adc to rph_radar and fix its data path

This commit is contained in:
Ayzen
2026-10-06 18:15:18 +03:00
parent aef549ea76
commit a185e61495
94 changed files with 2851 additions and 9485 deletions
@@ -1,3 +1 @@
"""Vendored laser-control package used by the Kamil ADC hardware path."""
__version__ = "1.0.0"
"""Vendored laser-control package used by the RadioPhotonic radar (RPH) hardware path."""
@@ -9,43 +9,8 @@ laser control board.
BAUDRATE = 115200
SERIAL_TIMEOUT_SEC = 1.0
GET_DATA_TOTAL_LENGTH = 30 # bytes in device DATA response
SEND_PARAMS_TOTAL_LENGTH = 30 # bytes in DECODE_ENABLE command
TASK_ENABLE_COMMAND_LENGTH = 32 # bytes in TASK_ENABLE command
WAIT_AFTER_SEND_SEC = 0.15 # delay after sending a command
# ---- Command codes (as sent to device, already flipped to LE)
CMD_DECODE_ENABLE = 0x1111 # Set control parameters
CMD_DEFAULT_ENABLE = 0x2222 # Reset device
CMD_TRANS_ENABLE = 0x4444 # Request last data
CMD_REMOVE_FILE = 0x5555 # Delete saved data
CMD_STATE = 0x6666 # Request state
CMD_TASK_ENABLE = 0x7777 # Start a task
# ---- Error codes from device STATE response (after flipfour)
STATE_OK = '0000'
STATE_SD_ERR = '0001' # SD Card read/write error
STATE_UART_ERR = '0002' # Command (UART) error
STATE_UART_DECODE_ERR = '0004' # Wrong parameter value
STATE_TEC1_ERR = '0008' # Laser 1 TEC driver overheat
STATE_TEC2_ERR = '0010' # Laser 2 TEC driver overheat
STATE_DEFAULT_ERR = '0020' # System reset error
STATE_REMOVE_ERR = '0040' # File deletion error
STATE_DESCRIPTIONS = {
STATE_OK: "All ok.",
STATE_SD_ERR: "SD Card reading/writing error (SD_ERR).",
STATE_UART_ERR: "Command error (UART_ERR).",
STATE_UART_DECODE_ERR:"Wrong parameter value error (UART_DECODE_ERR).",
STATE_TEC1_ERR: "Laser 1: TEC driver overheat (TEC1_ERR).",
STATE_TEC2_ERR: "Laser 2: TEC driver overheat (TEC2_ERR).",
STATE_DEFAULT_ERR: "Resetting system error (DEFAULT_ERR).",
STATE_REMOVE_ERR: "File deletion error (REMOVE_ERR).",
}
# ---- Physical / hardware constants (from device_conversion.py)
VREF = 2.5 # Reference voltage, Volts
@@ -60,26 +25,13 @@ R6 = 56000 # Ohm
RREF = 10 # Current-setting resistor, Ohm
# (@1550 nm – 28.7 Ohm; @840 nm – 10 Ohm)
# External thermistor divider resistors
R7 = 22000 # Ohm
R8 = 22000 # Ohm
R9 = 5100 # Ohm
R10 = 180000 # Ohm
# Thermistor Steinhart–Hart B-coefficient (internal / external)
# Thermistor Steinhart–Hart B-coefficient
BETA_INTERNAL = 3900 # K
BETA_EXTERNAL = 3455 # K
T0_K = 298 # Kelvin (25 °C reference)
R0 = 10000 # Ohm (thermistor nominal at 25 °C)
# ADC resolution
# DAC resolution
ADC_BITS_16 = 65535 # 2^16 - 1
ADC_BITS_12 = 4095 # 2^12 - 1
# Voltage conversion coefficients
U3V3_COEFF = 1.221e-3 # counts → Volts for 3.3V rail
U5V_COEFF = 1.8315e-3 # counts → Volts for 5V rails
U7V_COEFF = 6.72e-3 # counts → Volts for 7V rail
# ---- Operational limits (validated in validators.py)
@@ -93,9 +45,6 @@ CURRENT_MAX_MA = 60.0 # Maximum allowed laser current, mA
CURRENT_STEP_MIN_MA = 0.002 # Minimum current variation step, mA
CURRENT_STEP_MAX_MA = 0.5 # Maximum current variation step, mA
TEMP_STEP_MIN_C = 0.05 # Minimum temperature variation step, °C
TEMP_STEP_MAX_C = 1.0 # Maximum temperature variation step, °C
# Time parameter limits
TIME_STEP_MIN_US = 20 # Minimum time step, microseconds
TIME_STEP_MAX_US = 100 # Maximum time step, microseconds
@@ -1,355 +1,60 @@
"""
Main laser controller for the laser control module.
"""Board commands with mandatory acknowledgements."""
Provides a high-level API for controlling dual laser systems.
All input parameters are validated before being sent to the device.
Can be embedded in any Python application without GUI dependencies.
"""
import time
import logging
from typing import Optional, Callable
import time
from .protocol import Protocol, TaskType as ProtoTaskType
from .validators import ParameterValidator
from .models import (
VariationType,
Measurements,
)
from .exceptions import (
CommunicationError,
DeviceNotRespondingError,
)
from .constants import WAIT_AFTER_SEND_SEC
from .exceptions import CommunicationError
from .protocol import Protocol
logger = logging.getLogger(__name__)
# Default PI regulator coefficients (match firmware defaults)
DEFAULT_PI_P = 2560 # 10 * 256
DEFAULT_PI_I = 128 # 0.5 * 256
DEFAULT_PI_P = 2560
DEFAULT_PI_I = 128
DEVICE_MAIN_MESSAGE_ID = 0x00FF
class LaserController:
"""
High-level controller for the dual laser board.
"""Control constant setpoints or LD1 current variation through one serial port."""
Usage example::
ctrl = LaserController(port='/dev/ttyUSB0')
ctrl.connect()
ctrl.set_manual_mode(temp1=25.0, temp2=30.0,
current1=40.0, current2=35.0)
data = ctrl.get_measurements()
print(data.voltage_3v3)
ctrl.disconnect()
All public methods raise :class:`ValidationError` for bad parameters
and :class:`CommunicationError` for transport-level problems.
"""
def __init__(
self,
port: Optional[str] = None,
pi_coeff1_p: int = DEFAULT_PI_P,
pi_coeff1_i: int = DEFAULT_PI_I,
pi_coeff2_p: int = DEFAULT_PI_P,
pi_coeff2_i: int = DEFAULT_PI_I,
on_data: Optional[Callable[[Measurements], None]] = None,
):
"""
Args:
port: Serial port (e.g. '/dev/ttyUSB0'). None = auto-detect.
pi_coeff1_p: Proportional coefficient for laser 1 PI regulator.
pi_coeff1_i: Integral coefficient for laser 1 PI regulator.
pi_coeff2_p: Proportional coefficient for laser 2 PI regulator.
pi_coeff2_i: Integral coefficient for laser 2 PI regulator.
on_data: Optional callback called whenever new measurements
are received. Signature: ``callback(Measurements)``.
"""
def __init__(self, port: str,
pi_coeff1_p: int = DEFAULT_PI_P, pi_coeff1_i: int = DEFAULT_PI_I,
pi_coeff2_p: int = DEFAULT_PI_P, pi_coeff2_i: int = DEFAULT_PI_I):
self._protocol = Protocol(port)
self._pi1_p = pi_coeff1_p
self._pi1_i = pi_coeff1_i
self._pi2_p = pi_coeff2_p
self._pi2_i = pi_coeff2_i
self._on_data = on_data
self._message_id = 0
self._last_measurements: Optional[Measurements] = None
# Last manual-mode params, used to restore state after stop_task()
self._last_temp1: float = 25.0
self._last_temp2: float = 25.0
self._last_current1: float = 30.0
self._last_current2: float = 30.0
# ---- Connection -------------------------------------------------------
self._pi = dict(pi_coeff1_p=pi_coeff1_p, pi_coeff1_i=pi_coeff1_i,
pi_coeff2_p=pi_coeff2_p, pi_coeff2_i=pi_coeff2_i)
def connect(self) -> bool:
"""
Open connection to the device.
Returns:
True if connection succeeded.
Raises:
CommunicationError: If the port cannot be opened.
"""
self._protocol.connect()
logger.info("Connected to laser controller on port %s",
self._protocol._port_name or "auto")
logger.info("Connected to laser controller on port %s", self._protocol.port)
return True
def disconnect(self) -> None:
"""Close the serial port gracefully."""
self._protocol.disconnect()
logger.info("Disconnected from laser controller")
@property
def is_connected(self) -> bool:
"""True if the serial port is open."""
return self._protocol.is_connected
def set_manual_mode(self, temp1: float, temp2: float, current1: float, current2: float,
message_id: int) -> None:
manual = dict(temp1=temp1, temp2=temp2, current1=current1, current2=current2)
self._send_and_read_state(Protocol.encode_decode_enable(**manual, **self._pi, message_id=message_id))
logger.debug("Manual setpoints: %s", manual)
# ---- Public API -------------------------------------------------------
def set_manual_mode(
self,
temp1: float,
temp2: float,
current1: float,
current2: float,
message_id: Optional[int] = None,
) -> None:
"""
Set manual control parameters for both lasers.
Args:
temp1: Setpoint temperature for laser 1, °C.
Valid range: [15.0 … 40.0] °C.
temp2: Setpoint temperature for laser 2, °C.
Valid range: [15.0 … 40.0] °C.
current1: Drive current for laser 1, mA.
Valid range: [15.0 … 60.0] mA.
current2: Drive current for laser 2, mA.
Valid range: [15.0 … 60.0] mA.
message_id: Optional fixed DECODE_ENABLE message id. When
omitted, the id is incremented for backward
compatibility with the refactored API.
Raises:
ValidationError: If any parameter is out of range.
CommunicationError: If the command cannot be sent.
"""
validated = ParameterValidator.validate_manual_mode_params(
temp1, temp2, current1, current2
)
if message_id is None:
self._message_id = (self._message_id + 1) & 0xFFFF
else:
self._message_id = int(message_id) & 0xFFFF
cmd = Protocol.encode_decode_enable(
temp1=validated['temp1'],
temp2=validated['temp2'],
current1=validated['current1'],
current2=validated['current2'],
pi_coeff1_p=self._pi1_p,
pi_coeff1_i=self._pi1_i,
pi_coeff2_p=self._pi2_p,
pi_coeff2_i=self._pi2_i,
message_id=self._message_id,
)
self._send_and_read_state(cmd)
self._last_temp1 = validated['temp1']
self._last_temp2 = validated['temp2']
self._last_current1 = validated['current1']
self._last_current2 = validated['current2']
logger.debug("Manual mode set: T1=%.2f T2=%.2f I1=%.2f I2=%.2f",
validated['temp1'], validated['temp2'],
validated['current1'], validated['current2'])
def start_variation(
self,
variation_type: VariationType,
params: dict,
) -> None:
"""
Start a parameter variation task.
Args:
variation_type: Which parameter to vary
(:class:`VariationType.CHANGE_CURRENT_LD1` or
:class:`VariationType.CHANGE_CURRENT_LD2`).
params: Dictionary with the following keys:
- ``min_value`` – minimum value of the varied parameter.
- ``max_value`` – maximum value of the varied parameter.
- ``step`` – step size.
- ``time_step`` – discretisation time step, µs [20 … 100].
- ``delay_time``– delay between pulses, ms [3 … 10].
- ``static_temp1`` – fixed temperature for laser 1, °C.
- ``static_temp2`` – fixed temperature for laser 2, °C.
- ``static_current1`` – fixed current for laser 1, mA.
- ``static_current2`` – fixed current for laser 2, mA.
Raises:
ValidationError: If any parameter fails validation.
CommunicationError: If the command cannot be sent.
"""
# Validate variation-specific params
validated = ParameterValidator.validate_variation_params(
params, variation_type
)
# Validate static parameters
static_temp1 = ParameterValidator.validate_temperature(
params.get('static_temp1', 25.0), 'static_temp1'
)
static_temp2 = ParameterValidator.validate_temperature(
params.get('static_temp2', 25.0), 'static_temp2'
)
static_current1 = ParameterValidator.validate_current(
params.get('static_current1', 30.0), 'static_current1'
)
static_current2 = ParameterValidator.validate_current(
params.get('static_current2', 30.0), 'static_current2'
)
# Map VariationType → protocol TaskType
task_type_map = {
VariationType.CHANGE_CURRENT_LD1: ProtoTaskType.CHANGE_CURRENT_LD1,
VariationType.CHANGE_CURRENT_LD2: ProtoTaskType.CHANGE_CURRENT_LD2,
VariationType.CHANGE_TEMPERATURE_LD1: ProtoTaskType.CHANGE_TEMPERATURE_LD1,
VariationType.CHANGE_TEMPERATURE_LD2: ProtoTaskType.CHANGE_TEMPERATURE_LD2,
}
proto_task = task_type_map[validated['variation_type']]
cmd = Protocol.encode_task_enable(
task_type=proto_task,
static_temp1=static_temp1,
static_temp2=static_temp2,
static_current1=static_current1,
static_current2=static_current2,
min_value=validated['min_value'],
max_value=validated['max_value'],
step=validated['step'],
time_step=validated['time_step'],
delay_time=validated['delay_time'],
message_id=self._message_id,
pi_coeff1_p=self._pi1_p,
pi_coeff1_i=self._pi1_i,
pi_coeff2_p=self._pi2_p,
pi_coeff2_i=self._pi2_i,
)
self._send_and_read_state(cmd)
logger.info("Variation task started: type=%s min=%.3f max=%.3f step=%.3f",
validated['variation_type'].name,
validated['min_value'],
validated['max_value'],
validated['step'])
def stop_task(self, restore_message_id: Optional[int] = None) -> None:
"""Stop the current task and restore manual mode.
Sends DEFAULT_ENABLE (reset) followed by DECODE_ENABLE with the last
known manual-mode parameters. This two-step sequence matches the
original firmware protocol: after DEFAULT_ENABLE the board is in a
reset state and must receive DECODE_ENABLE before it can respond to
TRANS_ENABLE data requests again.
"""
cmd_reset = Protocol.encode_default_enable()
self._send_and_read_state(cmd_reset)
logger.info("Task stopped (DEFAULT_ENABLE sent)")
self.set_manual_mode(
temp1=self._last_temp1,
temp2=self._last_temp2,
current1=self._last_current1,
current2=self._last_current2,
message_id=restore_message_id,
)
logger.info("Manual mode restored after task stop")
def get_measurements(self) -> Optional[Measurements]:
"""
Request and return the latest measurements from the device.
Returns:
:class:`Measurements` dataclass, or None if no data available.
Raises:
CommunicationError: On transport errors.
"""
cmd = Protocol.encode_trans_enable()
self._send(cmd)
raw = self._protocol.receive_raw(30)
if not raw or len(raw) != 30:
logger.warning("No data received from device")
return None
response = Protocol.decode_response(raw)
measurements = response.to_measurements()
self._last_measurements = measurements
if self._on_data:
self._on_data(measurements)
return measurements
def start_variation(self, params: dict) -> None:
self._send_and_read_state(Protocol.encode_task_enable(
**params, pi_coeff1_p=self._pi["pi_coeff1_p"], pi_coeff1_i=self._pi["pi_coeff1_i"],
pi_coeff2_p=self._pi["pi_coeff2_p"], pi_coeff2_i=self._pi["pi_coeff2_i"],
))
logger.info("LD1 current variation started: %s", params)
def reset(self) -> None:
"""Send a hardware reset command to the device."""
cmd = Protocol.encode_default_enable()
self._send_and_read_state(cmd)
self._send_and_read_state(b"\x22\x22")
logger.info("Device reset command sent")
# ---- Internal helpers -------------------------------------------------
def _send(self, cmd: bytes) -> None:
"""Send command bytes and wait for the device to process."""
if not self.is_connected:
raise CommunicationError("Not connected to device. Call connect() first.")
self._protocol.send_raw(cmd)
def _send(self, command: bytes) -> None:
self._protocol.send_raw(command)
time.sleep(WAIT_AFTER_SEND_SEC)
def _send_and_read_state(self, cmd: bytes) -> int:
"""Send command and read the 2-byte STATE response the device always returns.
Commands DECODE_ENABLE, TASK_ENABLE and DEFAULT_ENABLE each trigger a
STATE reply from the firmware. If we don't consume those bytes here,
they accumulate in the serial buffer and corrupt the next DATA read.
Returns the decoded state code (0x0000 = OK).
"""
self._send(cmd)
raw = self._protocol.receive_raw(2)
if raw and len(raw) == 2:
state = Protocol.decode_state(raw)
if state != 0:
# Surface a device-reported non-OK STATE instead of silently
# treating a board-rejected command as success.
logger.warning(
"Device returned non-OK STATE 0x%04x after command: %s",
state,
Protocol.state_to_description(f"{state:04x}"),
)
else:
logger.debug("STATE response after command: 0x%04x", state)
return state
return 0
# ---- Context manager support -----------------------------------------
def __enter__(self):
self.connect()
return self
def __exit__(self, exc_type, exc_val, exc_tb):
# Always try to stop any running task before closing the port.
# If we don't, the board stays in TASK state and ignores all future
# commands until its power is cycled.
if self.is_connected:
try:
self.stop_task()
except Exception:
logger.warning("Failed to stop laser task on exit; closing port anyway", exc_info=True)
self.disconnect()
return False
def _send_and_read_state(self, command: bytes) -> None:
self._send(command)
state = Protocol.decode_state(self._protocol.receive_raw(2))
if state:
raise CommunicationError(f"Device rejected command: STATE 0x{state:04x}")
@@ -5,14 +5,7 @@ values used by the device firmware, using the hardware's bridge/divider formulas
"""
import math
from .constants import (
VREF, R1, R3, R4, R5, R6,
R7, R8, R9, R10,
RREF,
BETA_INTERNAL, BETA_EXTERNAL, T0_K, R0,
ADC_BITS_16, ADC_BITS_12,
U3V3_COEFF, U5V_COEFF, U7V_COEFF,
)
from .constants import ADC_BITS_16, BETA_INTERNAL, R0, R1, R3, R4, R5, R6, RREF, T0_K, VREF
def temp_c_to_n(temp_c: float) -> int:
@@ -34,38 +27,6 @@ def temp_c_to_n(temp_c: float) -> int:
return n
def temp_n_to_c(n: int) -> float:
"""
Convert 16-bit ADC integer to temperature (°C).
Args:
n: Raw ADC value in [0, 65535].
Returns:
Temperature in degrees Celsius.
"""
u = n * VREF / ADC_BITS_16
rt = R1 * (VREF * R4 * (R5 + R6) - u * R5 * (R3 + R4)) / (
u * R5 * (R3 + R4) + VREF * R3 * R6 - VREF * R4 * R5
)
t = 1 / (1 / T0_K + 1 / BETA_INTERNAL * math.log(rt / R0)) - 273
return t
def temp_ext_n_to_c(n: int) -> float:
"""
Convert 12-bit ADC integer to external thermistor temperature (°C).
Args:
n: Raw 12-bit ADC value in [0, 4095].
Returns:
Temperature in degrees Celsius.
"""
u = n * VREF / ADC_BITS_12 * 1 / (1 + 100000 / R10) + VREF * R9 / (R8 + R9)
rt = R7 * u / (VREF - u)
t = 1 / (1 / T0_K + 1 / BETA_EXTERNAL * math.log(rt / R0)) - 273
return t
def current_ma_to_n(current_ma: float) -> int:
@@ -81,31 +42,3 @@ def current_ma_to_n(current_ma: float) -> int:
n = int(ADC_BITS_16 / 2000 * RREF * current_ma)
n = max(0, min(ADC_BITS_16, n))
return n
def current_n_to_ma(n: int) -> float:
"""
Convert raw ADC integer to photodiode current (mA).
Args:
n: Raw ADC value in [0, 65535].
Returns:
Current in milliamps.
"""
return n * 2.5 / (ADC_BITS_16 * 4.4) - 1 / 20.4
def voltage_3v3_n_to_v(n: int) -> float:
"""Convert 3.3V rail ADC count to volts."""
return n * U3V3_COEFF
def voltage_5v_n_to_v(n: int) -> float:
"""Convert 5V rail ADC count to volts (both 5V1 and 5V2)."""
return n * U5V_COEFF
def voltage_7v_n_to_v(n: int) -> float:
"""Convert 7V rail ADC count to volts."""
return n * U7V_COEFF
@@ -16,58 +16,11 @@ class ValidationError(LaserControlError):
pass
class TemperatureOutOfRangeError(ValidationError):
"""Exception raised when temperature is outside valid range."""
def __init__(self, param_name: str, value: float, min_val: float, max_val: float):
self.param_name = param_name
self.value = value
self.min_val = min_val
self.max_val = max_val
super().__init__(
f"{param_name}: Temperature {value}°C is out of range "
f"[{min_val}°C - {max_val}°C]"
)
class CurrentOutOfRangeError(ValidationError):
"""Exception raised when current is outside valid range."""
def __init__(self, param_name: str, value: float, min_val: float, max_val: float):
self.param_name = param_name
self.value = value
self.min_val = min_val
self.max_val = max_val
super().__init__(
f"{param_name}: Current {value}mA is out of range "
f"[{min_val}mA - {max_val}mA]"
)
class InvalidParameterError(ValidationError):
"""Exception raised for invalid parameter types or values."""
def __init__(self, param_name: str, message: str):
self.param_name = param_name
super().__init__(f"{param_name}: {message}")
class CommunicationError(LaserControlError):
"""Base exception for communication errors."""
pass
class PortNotFoundError(CommunicationError):
"""Exception raised when serial port cannot be found."""
def __init__(self, port: str | None = None):
if port:
message = f"Serial port '{port}' not found"
else:
message = "No suitable serial port found for device connection"
super().__init__(message)
class PortBusyError(CommunicationError):
"""Raised when the serial port is already held by another program.
@@ -86,28 +39,6 @@ class PortBusyError(CommunicationError):
)
class DeviceNotRespondingError(CommunicationError):
"""Exception raised when device doesn't respond to commands."""
def __init__(self, timeout: float | None = None):
if timeout:
message = f"Device did not respond within {timeout} seconds"
else:
message = "Device is not responding to commands"
super().__init__(message)
class CRCError(CommunicationError):
"""Exception raised when CRC check fails."""
def __init__(self, expected: int | None = None, received: int | None = None):
if expected is not None and received is not None:
message = f"CRC check failed. Expected: 0x{expected:04X}, Received: 0x{received:04X}"
else:
message = "CRC check failed on received data"
super().__init__(message)
class ProtocolError(CommunicationError):
"""Exception raised for protocol-level errors."""
@@ -1,65 +0,0 @@
"""
Data models for laser control module.
Provides dataclasses and enums for structured data representation
throughout the laser control system.
"""
from dataclasses import dataclass
from enum import IntEnum
from typing import Optional, Dict, Any
from datetime import datetime
class VariationType(IntEnum):
"""Types of parameter variation modes."""
MANUAL = 0x00
CHANGE_CURRENT_LD1 = 0x01
CHANGE_CURRENT_LD2 = 0x02
CHANGE_TEMPERATURE_LD1 = 0x03
CHANGE_TEMPERATURE_LD2 = 0x04
@dataclass
class Measurements:
"""Real-time measurements from the device."""
# Photodiode currents
current1: float # Photodiode current for laser 1 (mA)
current2: float # Photodiode current for laser 2 (mA)
# Temperatures
temp1: float # Temperature of laser 1 (°C)
temp2: float # Temperature of laser 2 (°C)
temp_ext1: Optional[float] = None # External thermistor 1 temperature (°C)
temp_ext2: Optional[float] = None # External thermistor 2 temperature (°C)
# Power supply voltages
voltage_3v3: float = 0.0 # 3.3V rail voltage
voltage_5v1: float = 0.0 # 5V rail 1 voltage
voltage_5v2: float = 0.0 # 5V rail 2 voltage
voltage_7v0: float = 0.0 # 7V rail voltage
# Metadata
timestamp: Optional[datetime] = None
message_id: Optional[int] = None
to6_counter_lsb: Optional[int] = None
to6_counter_msb: Optional[int] = None
def __post_init__(self):
"""Set timestamp if not provided."""
if self.timestamp is None:
self.timestamp = datetime.now()
def to_dict(self) -> Dict[str, Any]:
"""Convert to dictionary representation."""
return {
'current1': self.current1,
'current2': self.current2,
'temp1': self.temp1,
'temp2': self.temp2,
'temp_ext1': self.temp_ext1,
'temp_ext2': self.temp_ext2,
'voltage_3v3': self.voltage_3v3,
'voltage_5v1': self.voltage_5v1,
'voltage_5v2': self.voltage_5v2,
'voltage_7v0': self.voltage_7v0,
'timestamp': self.timestamp.isoformat() if self.timestamp else None,
'message_id': self.message_id
}
@@ -1,259 +0,0 @@
# Контроль температуры при вариации тока лазера
Набор из трёх развязанных компонентов для автоматизации измерений в режиме
**вариации тока лазера 1** (`CHANGE_CURRENT_LD1`). Пока плата гоняет свип тока,
температуры лазеров должны оставаться на заданных статичных уставках. Эти модули
раз в свип считывают реальную температуру и предупреждают, если она разошлась с
целью.
## Зачем это нужно
При запуске вариации тока из GUI изменённые значения температуры могут фактически
не дойти до цели — реальная температура остаётся прежней, и измерение становится
некорректным. Плата после старта задачи гоняет свип **автономно** и никак не
сигнализирует, что уставка не достигнута. Эти модули закрывают пробел: независимо
опрашивают плату и валидируют температуру относительно уставок, зафиксированных
**в момент старта вариации**.
> ⚠️ В прошивке реализована только **вариация тока** (`CHANGE_CURRENT_LD1`).
> Вариация температуры не поддерживается и в этот API не заложена.
## Архитектура
```
[starter] ── TASK_ENABLE ──► плата запускает вариацию
│ пишет session.json (target temp1/2, tolerance, variation_type)
▼
[monitor] ── TRANS_ENABLE ──► плата владеет портом всё время работы
│ раз в свип: get_measurements()
│ дописывает строку в readings.jsonl (seq, temp1, temp2, temp_ext, I1, I2)
▼
[checker] читает session.json + tail readings.jsonl
сверяет temp1↔target_temp1 и temp2↔target_temp2, |Δ|>tol ─► WARNING в консоль
```
- **Порт лазера эксклюзивен.** При `--start` запуск и мониторинг используют одно
соединение. Штатный пайплайн закрывает порт после запуска вариации, и его
может открыть отдельный монитор. `checker` читает только файлы.
- **Связь через файлы** (JSONL + JSON), а не сокеты, — процессы стартуют,
останавливаются и перезапускаются независимо, без рукопожатия.
- **Сверяются оба лазера** по внутренним `temp1`/`temp2` (не по внешним
термисторам `temp_ext*`), с общим допуском (по умолчанию `0.03 °C`).
## Быстрый старт (CLI, два процесса)
Команды запускаются из корня проекта. Терминал 1 — стартовать вариацию и
мониторить температуру:
```bash
.venv/bin/python -m python_app.scripts.laser_temp_monitor \
--config run_config.json \
--start
```
Терминал 2 — валидировать температуру и печатать предупреждения:
```bash
.venv/bin/python -m python_app.scripts.laser_temp_checker
```
Пример вывода чекера при расхождении и возврате в допуск:
```
WARNING python_app.hardware_full.laser_control.monitoring.checker: Laser 1 temperature off target: measured 28.100 °C,
target 28.000 °C, Δ=+0.100 °C exceeds tolerance ±0.030 °C [seq=1]
INFO python_app.hardware_full.laser_control.monitoring.checker: Laser 1 temperature back within tolerance:
28.000 °C (target 28.000, |Δ|=0.000 ≤ 0.030) [seq=2]
```
Остановка — `Ctrl+C` (SIGINT) в любом из процессов.
## Конфигурация
Параметры берутся из `run_config.json`, секция `radar.laser_control`. Мониторинг
использует блок `variation`, включая `temp_tolerance_c`:
```json
{
"radar": {
"model": "kamil_adc",
"laser_control": {
"enabled": true,
"port": "/dev/ttyUSB0",
"mode": "variation",
"pi_coeff1_p": 2560,
"pi_coeff1_i": 128,
"pi_coeff2_p": 2560,
"pi_coeff2_i": 128,
"variation": {
"variation_type": "CHANGE_CURRENT_LD1",
"static_temp1": 28.0,
"static_temp2": 28.9,
"static_current1": 33.0,
"static_current2": 35.0,
"min_value": 33.0,
"max_value": 60.0,
"step": 0.05,
"time_step": 50,
"delay_time": 10,
"temp_tolerance_c": 0.03
}
}
}
}
```
Ключевые поля для мониторинга:
| Поле | Смысл |
|---|---|
| `port` | Серийный порт лазерной платы; CLI-монитор допускает пустое значение для автоопределения, пайплайн требует явный порт |
| `static_temp1` / `static_temp2` | Целевые статичные температуры лазеров 1/2, °C |
| `min_value` / `max_value` / `step` | Диапазон и шаг свипа тока, мА — из них считается период свипа |
| `time_step` / `delay_time` | Тайминги точки (мкс / мс) — тоже входят в период свипа |
| `temp_tolerance_c` | Допуск сверки, °C (по умолчанию `0.03`) |
## Опции CLI
### `laser_temp_monitor`
| Аргумент | По умолчанию | Назначение |
|---|---|---|
| `--config` | — (обязателен) | Путь к `run_config.json` |
| `--start` | выкл. | Послать `CHANGE_CURRENT_LD1` перед мониторингом и записать сессию |
| `--strategy` | `computed` | `computed` (раз в свип) или `interval:<ms>` (фикс. период) |
| `--readings` | `<tmp>/laser_temp_readings.jsonl` | Куда дописывать показания |
| `--session` | `<tmp>/laser_variation_session.json` | Куда писать снимок сессии (с `--start`) |
Мониторить уже запущенную из GUI/пайплайна вариацию (без повторного старта):
```bash
.venv/bin/python -m python_app.scripts.laser_temp_monitor --config run_config.json
```
Фиксированный период вместо расчётного (напр. раз в 500 мс):
```bash
.venv/bin/python -m python_app.scripts.laser_temp_monitor \
--config run_config.json --strategy interval:500
```
### `laser_temp_checker`
| Аргумент | По умолчанию | Назначение |
|---|---|---|
| `--session` | `<tmp>/laser_variation_session.json` | Снимок с целями и допуском |
| `--readings` | `<tmp>/laser_temp_readings.jsonl` | Какой канал показаний тайлить |
| `--tolerance` | из сессии | Переопределить допуск, °C |
| `--reminder-every` | `0` (выкл.) | Повторять предупреждение каждые N показаний, пока вне допуска |
| `--from-start` | выкл. | Проверить весь файл показаний, а не только новые строки |
Разные пути для нескольких одновременных прогонов:
```bash
# монитор
.venv/bin/python -m python_app.scripts.laser_temp_monitor --config cfg.json --start \
--readings /tmp/run7.jsonl --session /tmp/run7.session.json
# чекер
.venv/bin/python -m python_app.scripts.laser_temp_checker \
--readings /tmp/run7.jsonl --session /tmp/run7.session.json --reminder-every 20
```
## Интеграция с пайплайном Kamil ADC
Когда вариацию стартует штатный пайплайн
([`apply_kamil_adc_laser_control`](../../kamil_adc/laser.py)), снимок сессии
`<tmp>/laser_variation_session.json` пишется автоматически. Для предупреждений
во время захвата нужны монитор без `--start`, который создаёт показания, и чекер.
Если монитор уже работает, достаточно добавить чекер. Он загружает сессию
один раз при запуске; после запуска новой вариации чекер нужно перезапустить.
## Встраивание в свой код (без CLI)
```python
import threading
from python_app.hardware_full.laser_control.controller import LaserController
from python_app.hardware_full.laser_control.monitoring import (
LaserTemperatureMonitor, LaserTemperatureChecker, LaserVariationSession,
ReadingWriter, ReadingReader, resolve_period_s,
)
# 1. Зафиксировать цели при старте вариации
session = LaserVariationSession(
variation_type="CHANGE_CURRENT_LD1",
target_temp1=28.0, target_temp2=28.9, tolerance_c=0.03,
)
# 2. Монитор (в проде controller — реальный LaserController)
period = resolve_period_s("computed", min_value=33.0, max_value=60.0, step=0.05,
time_step_us=50, delay_time_ms=10)
stop = threading.Event()
with LaserController(port="/dev/ttyUSB0") as ctrl, ReadingWriter("readings.jsonl") as w:
monitor = LaserTemperatureMonitor(ctrl, w, period_s=period)
worker = threading.Thread(target=monitor.run, args=(stop,))
worker.start()
# 3. Чекер: тайлить показания и валидировать оба лазера
checker = LaserTemperatureChecker.from_session(session)
reader = ReadingReader("readings.jsonl")
try:
while not stop.is_set():
for reading in reader.poll():
checker.process(reading) # печатает WARNING при |Δ| > tolerance
stop.wait(0.2)
except KeyboardInterrupt:
pass
finally:
stop.set()
worker.join() # завершить опрос до закрытия порта и файла
```
`LaserTemperatureChecker.evaluate(reading)` возвращает список
`LaserDeviation` (по лазеру: измеренное, цель, Δ, в допуске ли) без логирования —
удобно для собственной обработки/накопления статистики.
## Формат IPC-файлов
`session.json`:
```json
{
"variation_type": "CHANGE_CURRENT_LD1",
"target_temp1": 28.0,
"target_temp2": 28.9,
"tolerance_c": 0.03,
"started_at_iso": "2026-07-27T12:00:00"
}
```
`readings.jsonl` (по одной строке-объекту на успешный опрос):
```json
{"seq":0,"mono_ns":123456789,"temp1":28.0,"temp2":28.9,"temp_ext1":22.0,"temp_ext2":23.0,"current1":33.0,"current2":35.0}
```
## Как определяется «раз в свип»
Плата не отдаёт явную границу свипа, поэтому период оценивается из параметров:
```
num_steps = round(|max_value - min_value| / step) + 1
per_point_s = delay_time / 1000 + time_step / 1_000_000
sweep_period = num_steps × per_point_s
```
Монитор опрашивает плату сразу после запуска, затем ждёт такой период после
каждого опроса; это оценка, без синхронизации с границами аппаратных свипов.
Если нужен другой темп —
`--strategy interval:<ms>`. (Внутренний счётчик `TO6` платы существует, но его
семантика не гарантирована, поэтому для тайминга он не используется.)
## Тесты
```bash
.venv/bin/python -m unittest python_app.tests.test_laser_temp_monitoring
```
Покрыто: round-trip сессии, tail JSONL (включая усечённую последнюю строку),
расчёт периода свипа, маппинг измерений монитором, и валидация чекера по каждому
лазеру отдельно (порог, граница допуска, повторные предупреждения, восстановление).
@@ -1,36 +0,0 @@
"""Laser current-variation temperature monitoring and validation.
Three decoupled pieces connected via IPC files:
- :class:`LaserVariationSession` — target setpoints + tolerance frozen at start.
- :class:`LaserTemperatureMonitor` — polls the board once per sweep, publishes.
- :class:`LaserTemperatureChecker` — validates published readings, warns.
"""
from .checker import LaserDeviation, LaserTemperatureChecker
from .monitor import (
LaserTemperatureMonitor,
compute_sweep_period_s,
resolve_period_s,
)
from .readings_channel import ReadingReader, ReadingWriter, TemperatureReading
from .session import (
DEFAULT_READINGS_PATH,
DEFAULT_SESSION_PATH,
DEFAULT_TOLERANCE_C,
LaserVariationSession,
)
__all__ = [
"LaserDeviation",
"LaserTemperatureChecker",
"LaserTemperatureMonitor",
"compute_sweep_period_s",
"resolve_period_s",
"ReadingReader",
"ReadingWriter",
"TemperatureReading",
"DEFAULT_READINGS_PATH",
"DEFAULT_SESSION_PATH",
"DEFAULT_TOLERANCE_C",
"LaserVariationSession",
]
@@ -1,139 +0,0 @@
"""Independent laser temperature checker.
Reads the target setpoints frozen at variation start (:class:`LaserVariationSession`)
and validates each published :class:`TemperatureReading` against them. Both lasers
are checked independently: ``temp1`` against ``target_temp1`` and ``temp2`` against
``target_temp2``. When a laser's measured temperature deviates from its target by
more than the tolerance (default 0.03 °C), a warning is printed to the console.
Runs as its own process (see ``scripts/laser_temp_checker.py``), reading the JSONL
readings channel — it never touches the serial port, so it is fully independent of
the monitor and can be started, stopped, or restarted at any time.
"""
from __future__ import annotations
import logging
from dataclasses import dataclass
from typing import List
from .readings_channel import TemperatureReading
from .session import DEFAULT_TOLERANCE_C, LaserVariationSession
logger = logging.getLogger(__name__)
# Only a deviation strictly greater than the tolerance warns; this epsilon keeps a
# value the user intends to be exactly at the tolerance from tripping on float error
# (e.g. 28.03 - 28.00 == 0.030000000000001 in IEEE-754).
_FLOAT_EPS = 1e-9
@dataclass(slots=True)
class LaserDeviation:
"""Result of comparing one laser's measured temperature to its target."""
laser: int # 1 or 2
seq: int
measured: float
target: float
delta: float # measured - target, °C
within_tolerance: bool
class LaserTemperatureChecker:
"""Validates readings against per-laser targets and warns on mismatch.
Anti-spam: a laser's ok↔mismatch transitions are logged once; while a laser
stays out of tolerance, a reminder is emitted only every ``reminder_every``
readings (0 disables reminders). State is tracked independently per laser, so
a persistent laser-1 fault never suppresses a fresh laser-2 warning.
"""
def __init__(
self,
target_temp1: float,
target_temp2: float,
tolerance_c: float = DEFAULT_TOLERANCE_C,
reminder_every: int = 0,
) -> None:
self.target_temp1 = float(target_temp1)
self.target_temp2 = float(target_temp2)
self.tolerance_c = float(tolerance_c)
self.reminder_every = int(reminder_every)
# Per-laser state: mismatch flag + readings seen since the last log.
self._mismatch = {1: False, 2: False}
self._since_log = {1: 0, 2: 0}
@classmethod
def from_session(
cls, session: LaserVariationSession, reminder_every: int = 0
) -> "LaserTemperatureChecker":
return cls(
target_temp1=session.target_temp1,
target_temp2=session.target_temp2,
tolerance_c=session.tolerance_c,
reminder_every=reminder_every,
)
def evaluate(self, reading: TemperatureReading) -> List[LaserDeviation]:
"""Compute per-laser deviations without logging (pure)."""
return [
self._deviation(1, reading.seq, reading.temp1, self.target_temp1),
self._deviation(2, reading.seq, reading.temp2, self.target_temp2),
]
def process(self, reading: TemperatureReading) -> List[LaserDeviation]:
"""Evaluate a reading and emit console warnings, honouring anti-spam.
Returns the deviations for which a warning/reminder was emitted this call
(empty when both lasers are within tolerance and unchanged).
"""
warned: List[LaserDeviation] = []
for dev in self.evaluate(reading):
if self._should_warn(dev):
self._warn(dev)
warned.append(dev)
return warned
def _deviation(self, laser: int, seq: int, measured: float, target: float) -> LaserDeviation:
delta = measured - target
return LaserDeviation(
laser=laser,
seq=seq,
measured=measured,
target=target,
delta=delta,
within_tolerance=abs(delta) <= self.tolerance_c + _FLOAT_EPS,
)
def _should_warn(self, dev: LaserDeviation) -> bool:
laser = dev.laser
if not dev.within_tolerance:
if not self._mismatch[laser]:
# Fresh ok -> mismatch transition: always warn.
self._mismatch[laser] = True
self._since_log[laser] = 0
return True
# Still out of tolerance: warn again only every reminder_every readings.
self._since_log[laser] += 1
if self.reminder_every > 0 and self._since_log[laser] >= self.reminder_every:
self._since_log[laser] = 0
return True
return False
# Within tolerance: log a recovery once, then stay quiet.
if self._mismatch[laser]:
self._mismatch[laser] = False
self._since_log[laser] = 0
logger.info(
"Laser %d temperature back within tolerance: %.3f °C "
"(target %.3f, |Δ|=%.3f ≤ %.3f) [seq=%d]",
laser, dev.measured, dev.target, abs(dev.delta), self.tolerance_c, dev.seq,
)
return False
def _warn(self, dev: LaserDeviation) -> None:
logger.warning(
"Laser %d temperature off target: measured %.3f °C, target %.3f °C, "
"Δ=%+.3f °C exceeds tolerance ±%.3f °C [seq=%d]",
dev.laser, dev.measured, dev.target, dev.delta, self.tolerance_c, dev.seq,
)
@@ -1,147 +0,0 @@
"""Independent laser temperature monitor.
Owns a :class:`LaserController` connection and, once per current-variation sweep,
polls the board for a measurement and publishes it to a JSONL readings channel.
The board runs the current sweep autonomously after ``TASK_ENABLE``; the monitor
only reads the "last data point" via ``TRANS_ENABLE`` — exactly like the original
RadioPhotonic PC software's polling loop, but decoupled and headless.
Runs as its own process (see ``scripts/laser_temp_monitor.py``) so it is fully
independent of both the acquisition pipeline and the temperature checker.
"""
from __future__ import annotations
import logging
import threading
import time
from dataclasses import dataclass
from typing import Optional, Protocol
from .readings_channel import ReadingWriter, TemperatureReading
logger = logging.getLogger(__name__)
class _Temperatures(Protocol):
temp1: float
temp2: float
class _MeasurementSource(Protocol):
"""Minimal controller surface the monitor depends on (eases testing)."""
def get_measurements(self) -> _Temperatures | None: ...
def compute_sweep_period_s(
min_value: float,
max_value: float,
step: float,
time_step_us: float,
delay_time_ms: float,
) -> float:
"""Estimate the duration of one min→max current sweep, in seconds.
``num_steps = round(|max - min| / step) + 1`` points, each taking roughly the
inter-point delay plus the discretisation time. The board gives no explicit
end-of-sweep marker, so this computed period is how "once per sweep" is timed
by default.
"""
if step <= 0:
raise ValueError(f"step must be > 0, got {step}")
span = abs(max_value - min_value)
num_steps = round(span / step) + 1
per_point_s = delay_time_ms / 1000.0 + time_step_us / 1_000_000.0
return num_steps * per_point_s
def resolve_period_s(
strategy: str,
*,
min_value: float,
max_value: float,
step: float,
time_step_us: float,
delay_time_ms: float,
) -> float:
"""Turn a strategy string into a concrete per-reading period in seconds.
Supported strategies:
- ``"computed"`` — one reading per estimated sweep duration (default).
- ``"interval:<ms>"`` — a fixed period of ``<ms>`` milliseconds.
"""
if strategy == "computed":
return compute_sweep_period_s(min_value, max_value, step, time_step_us, delay_time_ms)
if strategy.startswith("interval:"):
try:
ms = float(strategy.split(":", 1)[1])
except ValueError as exc:
raise ValueError(f"Invalid interval strategy {strategy!r}") from exc
if ms <= 0:
raise ValueError(f"interval must be > 0 ms, got {ms}")
return ms / 1000.0
raise ValueError(
f"Unknown strategy {strategy!r}; expected 'computed' or 'interval:<ms>'"
)
@dataclass(slots=True)
class LaserTemperatureMonitor:
"""Polls a laser board once per sweep and publishes temperature readings.
Args:
controller: object exposing ``get_measurements()`` (a real
:class:`LaserController` in production, a fake in tests).
writer: destination channel implementing ``write(TemperatureReading)``.
period_s: seconds between readings (see :func:`resolve_period_s`).
"""
controller: _MeasurementSource
writer: ReadingWriter
period_s: float
def read_once(self, seq: int) -> Optional[TemperatureReading]:
"""Poll one measurement and turn it into a reading, or None if no data."""
measurements = self.controller.get_measurements()
if measurements is None:
logger.warning("No measurement returned from laser board (seq=%d)", seq)
return None
return TemperatureReading(
seq=seq,
mono_ns=time.monotonic_ns(),
temp1=float(measurements.temp1),
temp2=float(measurements.temp2),
temp_ext1=_opt(getattr(measurements, "temp_ext1", None)),
temp_ext2=_opt(getattr(measurements, "temp_ext2", None)),
current1=_opt(getattr(measurements, "current1", None)),
current2=_opt(getattr(measurements, "current2", None)),
)
def run(self, stop_event: Optional[threading.Event] = None) -> None:
"""Poll-and-publish until ``stop_event`` is set (runs forever if None).
Each iteration reads once, publishes, then waits one period. The wait is
interruptible via ``stop_event`` for a prompt clean shutdown.
"""
stop = stop_event or threading.Event()
seq = 0
logger.info("Temperature monitor started: period=%.3fs", self.period_s)
while not stop.is_set():
try:
reading = self.read_once(seq)
except Exception: # noqa: BLE001 — a transient read error must not kill the monitor
logger.warning("Measurement read failed; continuing", exc_info=True)
reading = None
if reading is not None:
self.writer.write(reading)
logger.debug(
"Published reading seq=%d T1=%.3f T2=%.3f", seq, reading.temp1, reading.temp2
)
seq += 1
stop.wait(self.period_s)
logger.info("Temperature monitor stopped after %d readings", seq)
def _opt(value: float | None) -> Optional[float]:
return None if value is None else float(value)
@@ -1,131 +0,0 @@
"""JSONL append/tail channel carrying per-sweep temperature readings.
The monitor process appends one JSON object per line; the checker process tails
the file from its end and parses each newly-appended line. A newline-delimited
file is used (rather than a socket) so the monitor and checker can start, stop,
and restart on independent lifecycles without a handshake — the checker simply
resumes tailing wherever the file currently ends.
A reader only ever consumes lines terminated by ``\\n``; a partially-written last
line is left buffered until its newline arrives, so a reading is never parsed
half-written.
"""
from __future__ import annotations
import json
import os
from dataclasses import asdict, dataclass
from pathlib import Path
from typing import Iterator, Optional, Union
_PathLike = Union[str, os.PathLike[str]]
@dataclass(slots=True)
class TemperatureReading:
"""One temperature/current snapshot published once per sweep.
``temp1``/``temp2`` are the internal laser temperatures (the values validated
against the setpoints); ``temp_ext1``/``temp_ext2`` are the external
thermistors, carried for diagnostics only.
"""
seq: int
mono_ns: int
temp1: float
temp2: float
temp_ext1: Optional[float] = None
temp_ext2: Optional[float] = None
current1: Optional[float] = None
current2: Optional[float] = None
def to_json_line(self) -> str:
return json.dumps(asdict(self), separators=(",", ":"))
@classmethod
def from_json_line(cls, line: str) -> "TemperatureReading":
payload = json.loads(line)
return cls(
seq=int(payload["seq"]),
mono_ns=int(payload["mono_ns"]),
temp1=float(payload["temp1"]),
temp2=float(payload["temp2"]),
temp_ext1=_opt_float(payload.get("temp_ext1")),
temp_ext2=_opt_float(payload.get("temp_ext2")),
current1=_opt_float(payload.get("current1")),
current2=_opt_float(payload.get("current2")),
)
def _opt_float(value: str | float | None) -> Optional[float]:
return None if value is None else float(value)
class ReadingWriter:
"""Appends :class:`TemperatureReading` objects to a JSONL file.
Each write is a single line flushed to the OS so a tailing reader sees it
promptly. Use as a context manager or call :meth:`close` explicitly.
"""
def __init__(self, path: _PathLike) -> None:
self.path = Path(path)
self.path.parent.mkdir(parents=True, exist_ok=True)
# Line-buffered append; each reading is one line.
self._fh = self.path.open("a", encoding="utf-8", buffering=1)
def write(self, reading: TemperatureReading) -> None:
self._fh.write(reading.to_json_line() + "\n")
self._fh.flush()
def close(self) -> None:
if not self._fh.closed:
self._fh.close()
def __enter__(self) -> "ReadingWriter":
return self
def __exit__(self, *_exc: object) -> None:
self.close()
class ReadingReader:
"""Tails a JSONL readings file, yielding complete lines as they appear.
``from_start=False`` (default) begins at the current end of file, so the
checker validates readings produced from the moment it starts. Partial
trailing lines are buffered until their newline arrives.
"""
def __init__(self, path: _PathLike, *, from_start: bool = False) -> None:
self.path = Path(path)
self._buffer = ""
self._pos = 0
if not from_start and self.path.exists():
self._pos = self.path.stat().st_size
def poll(self) -> Iterator[TemperatureReading]:
"""Yield every complete reading appended since the last poll.
Malformed lines are skipped silently (a truncated/legacy line must not
crash a long-running checker); callers that care can validate seq gaps.
"""
if not self.path.exists():
return
with self.path.open("r", encoding="utf-8") as fh:
fh.seek(self._pos)
chunk = fh.read()
self._pos = fh.tell()
if not chunk:
return
self._buffer += chunk
*complete, self._buffer = self._buffer.split("\n")
for line in complete:
line = line.strip()
if not line:
continue
try:
yield TemperatureReading.from_json_line(line)
except (ValueError, KeyError, TypeError):
continue
@@ -1,72 +0,0 @@
"""Variation-session snapshot shared between the temperature monitor and checker.
When a current-variation task is started, the target static laser temperatures
(``static_temp1``/``static_temp2``) and the acceptable tolerance are frozen into a
small JSON file. The temperature checker reads this file to know what "correct"
means for the run, so it validates against the setpoints that were in effect *at
variation start* — independent of any later edits to the run config.
Only current variation of laser 1 (``CHANGE_CURRENT_LD1``) is supported by the
firmware today; the session still records both laser targets because both
temperatures are held static during that task and both are validated.
"""
from __future__ import annotations
import json
import os
import tempfile
from dataclasses import asdict, dataclass
from pathlib import Path
from typing import Union
from python_app.file_io import atomic_write_json
_PathLike = Union[str, os.PathLike[str]]
# Default IPC locations. Both are overridable via CLI/API so several runs can use
# distinct files. Kept in the system temp dir so no project state is polluted.
DEFAULT_SESSION_PATH = Path(tempfile.gettempdir()) / "laser_variation_session.json"
DEFAULT_READINGS_PATH = Path(tempfile.gettempdir()) / "laser_temp_readings.jsonl"
DEFAULT_TOLERANCE_C = 0.03
@dataclass(slots=True)
class LaserVariationSession:
"""Target setpoints and tolerance frozen at variation start."""
variation_type: str
target_temp1: float
target_temp2: float
tolerance_c: float = DEFAULT_TOLERANCE_C
started_at_iso: str = ""
def save(self, path: _PathLike = DEFAULT_SESSION_PATH) -> Path:
"""Atomically write the session snapshot to ``path`` and return it.
Writes to a temp file in the same directory then renames, so a concurrent
checker never observes a half-written file.
"""
return atomic_write_json(Path(path), asdict(self))
@classmethod
def load(cls, path: _PathLike = DEFAULT_SESSION_PATH) -> "LaserVariationSession":
"""Load a session snapshot from ``path``.
Raises FileNotFoundError if the file is absent and ValueError if it is not
a valid session object.
"""
payload = json.loads(Path(path).read_text(encoding="utf-8"))
if not isinstance(payload, dict):
raise ValueError(f"Session file must be a JSON object: {path}")
try:
return cls(
variation_type=str(payload["variation_type"]),
target_temp1=float(payload["target_temp1"]),
target_temp2=float(payload["target_temp2"]),
tolerance_c=float(payload.get("tolerance_c", DEFAULT_TOLERANCE_C)),
started_at_iso=str(payload.get("started_at_iso", "")),
)
except (KeyError, TypeError, ValueError) as exc:
raise ValueError(f"Malformed session file {path}: {exc}") from exc
@@ -1,156 +1,39 @@
"""Communication protocol for the laser control module.
Encodes commands to wire bytes, decodes device responses, and manages the
serial port connection to the laser control board.
"""
"""Serial transport and little-endian commands for the dual-laser board."""
import errno
import logging
from typing import Optional
from enum import IntEnum
from datetime import datetime
import struct
from functools import reduce
from operator import xor
import serial
import serial.tools.list_ports
from .constants import (
BAUDRATE, SERIAL_TIMEOUT_SEC,
GET_DATA_TOTAL_LENGTH,
SEND_PARAMS_TOTAL_LENGTH,
TASK_ENABLE_COMMAND_LENGTH,
CMD_DECODE_ENABLE, CMD_DEFAULT_ENABLE,
CMD_TRANS_ENABLE, CMD_REMOVE_FILE,
CMD_STATE, CMD_TASK_ENABLE,
STATE_DESCRIPTIONS, STATE_OK,
)
from .conversions import (
temp_c_to_n, temp_n_to_c,
temp_ext_n_to_c,
current_ma_to_n, current_n_to_ma,
voltage_3v3_n_to_v, voltage_5v_n_to_v, voltage_7v_n_to_v,
)
from .models import Measurements
from .exceptions import (
CommunicationError,
PortNotFoundError,
PortBusyError,
CRCError,
ProtocolError,
)
from .constants import BAUDRATE, SERIAL_TIMEOUT_SEC
from .conversions import current_ma_to_n, temp_c_to_n
from .validators import validate_manual, validate_variation
from .exceptions import CommunicationError, PortBusyError, ProtocolError
logger = logging.getLogger(__name__)
class TaskType(IntEnum):
MANUAL = 0x00
CHANGE_CURRENT_LD1 = 0x01
CHANGE_CURRENT_LD2 = 0x02
CHANGE_TEMPERATURE_LD1 = 0x03
CHANGE_TEMPERATURE_LD2 = 0x04
def _command(header: int, *words: int) -> bytes:
"""Append XOR checksum; header is excluded, every word is uint16 LE."""
if any(not isinstance(word, int) or not 0 <= word <= 65535 for word in words):
raise ValueError("Laser command words must be uint16 integers")
return struct.pack(f"<{len(words) + 2}H", header, *words, reduce(xor, words, 0))
# ---- Low-level helpers --------------------------------------------------
def _int_to_hex4(value: int) -> str:
"""Return 4-character lowercase hex string (0–65535)."""
if value < 0 or value > 65535:
raise ValueError(f"Value {value} out of uint16 range [0, 65535]")
return f"{value:04x}"
def _flipfour(hex_word: str) -> str:
"""Swap the two byte-pairs of a 4-char hex word: 'aabb' -> 'bbaa' (little-endian)."""
if len(hex_word) != 4:
raise ValueError(f"Expected 4-char hex string, got '{hex_word}'")
return hex_word[2:4] + hex_word[0:2]
def _xor_crc(words: list) -> str:
"""XOR all 16-bit hex words and return 4-char hex CRC."""
result = int(words[0], 16)
for w in words[1:]:
result ^= int(w, 16)
return _int_to_hex4(result)
def _build_crc(data_hex: str) -> str:
"""Calculate XOR CRC over words 1..N of a hex string (skip word 0)."""
words = [data_hex[i:i+4] for i in range(0, len(data_hex), 4)]
return _xor_crc(words[1:])
def _encode_setup() -> str:
"""Build the 16-bit setup word (all subsystems enabled, SD save off)."""
bits = ['0'] * 16
bits[15] = '1' # enable work
bits[14] = '1' # enable 5v1
bits[13] = '1' # enable 5v2
bits[12] = '1' # enable LD1
bits[11] = '1' # enable LD2
bits[10] = '1' # enable REF1
bits[9] = '1' # enable REF2
bits[8] = '1' # enable TEC1
bits[7] = '1' # enable TEC2
bits[6] = '1' # enable temp stab 1
bits[5] = '1' # enable temp stab 2
bits[4] = '0' # enable sd save (disabled)
bits[3] = '1' # enable PI1 coef read
bits[2] = '1' # enable PI2 coef read
bits[1] = '0' # reserved
bits[0] = '0' # reserved
return f"{int(''.join(bits), 2):04x}"
# ---- Response dataclass --------------------------------------------------
class Response:
"""Decoded device DATA response."""
__slots__ = [
'current1', 'current2',
'temp1', 'temp2',
'temp_ext1', 'temp_ext2',
'voltage_3v3', 'voltage_5v1', 'voltage_5v2', 'voltage_7v0',
'to6_lsb', 'to6_msb',
'message_id',
'header',
]
def to_measurements(self) -> Measurements:
return Measurements(
current1=self.current1,
current2=self.current2,
temp1=self.temp1,
temp2=self.temp2,
temp_ext1=self.temp_ext1,
temp_ext2=self.temp_ext2,
voltage_3v3=self.voltage_3v3,
voltage_5v1=self.voltage_5v1,
voltage_5v2=self.voltage_5v2,
voltage_7v0=self.voltage_7v0,
timestamp=datetime.now(),
message_id=self.message_id,
to6_counter_lsb=self.to6_lsb,
to6_counter_msb=self.to6_msb,
)
# ---- Protocol class --------------------------------------------------
class Protocol:
"""
Encodes commands and decodes responses for the laser control board.
"""Exclusive serial connection and the commands used by the application."""
Can also manage a serial port connection when port is provided.
"""
def __init__(self, port: Optional[str] = None):
self._port_name = port
self._serial: Optional[serial.Serial] = None
def __init__(self, port: str):
self.port = port
self._serial: serial.Serial | None = None
# ---- Connection management
def connect(self) -> None:
"""Open the serial port. Auto-detects the device path when port is None.
"""Open the serial port.
The port is opened with ``exclusive=True`` so only one program can own the
laser controller at a time. This is required because the board is a single
@@ -162,7 +45,7 @@ class Protocol:
"""
if self.is_connected:
return
port = self._port_name or self._detect_port()
port = self.port
try:
self._serial = serial.Serial(
port=port,
@@ -194,13 +77,6 @@ class Protocol:
def is_connected(self) -> bool:
return self._serial is not None and self._serial.is_open
def _detect_port(self) -> str:
"""Return first available serial port device path."""
ports = list(serial.tools.list_ports.comports())
if not ports:
raise PortNotFoundError()
return ports[0].device
# ---- Raw I/O
def send_raw(self, data: bytes) -> None:
@@ -213,199 +89,45 @@ class Protocol:
raise CommunicationError("Serial port is not connected")
return self._serial.read(length)
# ---- Command encoders -----------------------------------------------
@staticmethod
def encode_decode_enable(
temp1: float,
temp2: float,
current1: float,
current2: float,
pi_coeff1_p: int,
pi_coeff1_i: int,
pi_coeff2_p: int,
pi_coeff2_i: int,
temp1: float, temp2: float, current1: float, current2: float,
pi_coeff1_p: int, pi_coeff1_i: int, pi_coeff2_p: int, pi_coeff2_i: int,
message_id: int,
) -> bytes:
"""
Build DECODE_ENABLE command (0x1111).
Sets temperature and current setpoints for both lasers.
Returns 30-byte bytearray.
"""
if current1 < 0 or current2 < 0:
raise ValueError("Current values must not be negative")
data = _flipfour(_int_to_hex4(CMD_DECODE_ENABLE)) # Word 0
data += _flipfour(_encode_setup()) # Word 1
data += _flipfour(_int_to_hex4(temp_c_to_n(temp1))) # Word 2
data += _flipfour(_int_to_hex4(temp_c_to_n(temp2))) # Word 3
data += _flipfour('0000') * 3 # Words 4-6
data += _flipfour(_int_to_hex4(pi_coeff1_p)) # Word 7
data += _flipfour(_int_to_hex4(pi_coeff1_i)) # Word 8
data += _flipfour(_int_to_hex4(pi_coeff2_p)) # Word 9
data += _flipfour(_int_to_hex4(pi_coeff2_i)) # Word 10
data += _flipfour(_int_to_hex4(message_id & 0xFFFF)) # Word 11
data += _flipfour(_int_to_hex4(current_ma_to_n(current1))) # Word 12
data += _flipfour(_int_to_hex4(current_ma_to_n(current2))) # Word 13
data += _build_crc(data) # Word 14
result = bytearray.fromhex(data)
assert len(result) == SEND_PARAMS_TOTAL_LENGTH, \
f"DECODE_ENABLE length mismatch: {len(result)}"
return bytes(result)
"""DECODE_ENABLE: constant currents, temperatures and PI coefficients."""
validate_manual(temp1, temp2, current1, current2)
# 0x37ff enables both channels and their regulators; SD recording is off.
return _command(
0x1111, 0x37ff, temp_c_to_n(temp1), temp_c_to_n(temp2), 0, 0, 0,
pi_coeff1_p, pi_coeff1_i, pi_coeff2_p, pi_coeff2_i, message_id & 0xffff,
current_ma_to_n(current1), current_ma_to_n(current2),
)
@staticmethod
def encode_task_enable(
task_type: TaskType,
static_temp1: float,
static_temp2: float,
static_current1: float,
static_current2: float,
min_value: float,
max_value: float,
step: float,
time_step: int,
delay_time: int,
message_id: int,
pi_coeff1_p: int = 1,
pi_coeff1_i: int = 1,
pi_coeff2_p: int = 1,
pi_coeff2_i: int = 1,
static_temp1: float, static_temp2: float, static_current1: float, static_current2: float,
min_value: float, max_value: float, step: float, time_step: int, delay_time: int,
pi_coeff1_p: int = 1, pi_coeff1_i: int = 1, pi_coeff2_p: int = 1, pi_coeff2_i: int = 1,
variation_type: str = "CHANGE_CURRENT_LD1",
) -> bytes:
"""
Build TASK_ENABLE command (0x7777).
Starts a measurement task (current or temperature variation).
Returns 32-byte bytearray.
"""
if not isinstance(task_type, TaskType):
try:
task_type = TaskType(task_type)
except ValueError:
raise ValueError(f"Invalid task_type: {task_type}")
data = _flipfour(_int_to_hex4(CMD_TASK_ENABLE)) # Word 0
data += _flipfour(_encode_setup()) # Word 1
data += _flipfour(_int_to_hex4(task_type.value)) # Word 2
match task_type:
case TaskType.CHANGE_CURRENT_LD1:
data += _flipfour(_int_to_hex4(current_ma_to_n(min_value))) # Word 3
data += _flipfour(_int_to_hex4(current_ma_to_n(max_value))) # Word 4
data += _flipfour(_int_to_hex4(current_ma_to_n(step))) # Word 5
data += _flipfour(_int_to_hex4(int(time_step * 100))) # Word 6: Delta_Time_µs × 100
data += _flipfour(_int_to_hex4(temp_c_to_n(static_temp1))) # Word 7
data += _flipfour(_int_to_hex4(current_ma_to_n(static_current2)))# Word 8
data += _flipfour(_int_to_hex4(temp_c_to_n(static_temp2))) # Word 9
case TaskType.CHANGE_CURRENT_LD2:
data += _flipfour(_int_to_hex4(current_ma_to_n(min_value))) # Word 3
data += _flipfour(_int_to_hex4(current_ma_to_n(max_value))) # Word 4
# Word 5: current step uses the same current_ma_to_n scaling as
# min/max (and as LD1) so equal physical steps map to equal wire values.
data += _flipfour(_int_to_hex4(current_ma_to_n(step))) # Word 5
data += _flipfour(_int_to_hex4(int(time_step * 100))) # Word 6: Delta_Time_µs × 100
data += _flipfour(_int_to_hex4(temp_c_to_n(static_temp2))) # Word 7
data += _flipfour(_int_to_hex4(current_ma_to_n(static_current1)))# Word 8
data += _flipfour(_int_to_hex4(temp_c_to_n(static_temp1))) # Word 9
case TaskType.CHANGE_TEMPERATURE_LD1 | TaskType.CHANGE_TEMPERATURE_LD2:
raise NotImplementedError("Temperature variation is not yet implemented in firmware")
case _:
raise ValueError(f"Unsupported task type: {task_type}")
data += _flipfour(_int_to_hex4(int(delay_time))) # Word 10: Tau in ms (3-10)
data += _flipfour(_int_to_hex4(pi_coeff1_p)) # Word 11
data += _flipfour(_int_to_hex4(pi_coeff1_i)) # Word 12
data += _flipfour(_int_to_hex4(pi_coeff2_p)) # Word 13
data += _flipfour(_int_to_hex4(pi_coeff2_i)) # Word 14
data += _build_crc(data) # Word 15
result = bytearray.fromhex(data)
assert len(result) == TASK_ENABLE_COMMAND_LENGTH, \
f"TASK_ENABLE length mismatch: {len(result)}"
return bytes(result)
@staticmethod
def encode_trans_enable(message_id: int = 0) -> bytes:
"""Build TRANS_ENABLE command (0x4444) — request last data."""
return bytes.fromhex(_flipfour(_int_to_hex4(CMD_TRANS_ENABLE)))
@staticmethod
def encode_state(message_id: int = 0) -> bytes:
"""Build STATE command (0x6666) — request device state."""
return bytes.fromhex(_flipfour(_int_to_hex4(CMD_STATE)))
@staticmethod
def encode_default_enable(message_id: int = 0) -> bytes:
"""Build DEFAULT_ENABLE command (0x2222) — reset device."""
return bytes.fromhex(_flipfour(_int_to_hex4(CMD_DEFAULT_ENABLE)))
# ---- Response decoders -----------------------------------------------
@staticmethod
def decode_response(data: bytes) -> Response:
"""
Decode a 30-byte DATA response from the device.
Raises:
ProtocolError: If data length is wrong.
CRCError: If CRC check fails.
"""
if len(data) != GET_DATA_TOTAL_LENGTH:
raise ProtocolError(
f"Expected {GET_DATA_TOTAL_LENGTH} bytes, got {len(data)} bytes"
)
hex_str = data.hex()
def get_word(num: int) -> str:
return _flipfour(hex_str[num*4: num*4+4])
def get_int_word(num: int) -> int:
return int(get_word(num), 16)
# CRC check: XOR over words 1..13 (wire order), compare with word 14 (wire order)
crc_words = [hex_str[i:i+4] for i in range(4, len(hex_str)-4, 4)]
computed = int(crc_words[0], 16)
for w in crc_words[1:]:
computed ^= int(w, 16)
stored = int(hex_str[56:60], 16)
if computed != stored:
raise CRCError(expected=computed, received=stored)
resp = Response()
resp.header = get_word(0)
resp.current1 = current_n_to_ma(get_int_word(1))
resp.current2 = current_n_to_ma(get_int_word(2))
resp.to6_lsb = get_int_word(3)
resp.to6_msb = get_int_word(4)
resp.temp1 = temp_n_to_c(get_int_word(5))
resp.temp2 = temp_n_to_c(get_int_word(6))
resp.temp_ext1 = temp_ext_n_to_c(get_int_word(7))
resp.temp_ext2 = temp_ext_n_to_c(get_int_word(8))
resp.voltage_3v3 = voltage_3v3_n_to_v(get_int_word(9))
resp.voltage_5v1 = voltage_5v_n_to_v(get_int_word(10))
resp.voltage_5v2 = voltage_5v_n_to_v(get_int_word(11))
resp.voltage_7v0 = voltage_7v_n_to_v(get_int_word(12))
resp.message_id = get_int_word(13)
return resp
"""TASK_ENABLE: sweep LD1 current while LD2 and both temperatures stay fixed."""
if variation_type != "CHANGE_CURRENT_LD1":
raise ValueError("radar.laser_control.variation.variation_type must be CHANGE_CURRENT_LD1")
validate_manual(static_temp1, static_temp2, static_current1, static_current2)
validate_variation(min_value, max_value, step, time_step, delay_time)
low, high, delta = (current_ma_to_n(value) for value in (min_value, max_value, step))
if delta == 0 or low >= high:
raise ValueError("Current variation range and step must be representable by the DAC")
return _command(
0x7777, 0x37ff, 1, low, high, delta, int(time_step * 100),
temp_c_to_n(static_temp1), current_ma_to_n(static_current2), temp_c_to_n(static_temp2),
int(delay_time), pi_coeff1_p, pi_coeff1_i, pi_coeff2_p, pi_coeff2_i,
)
@staticmethod
def decode_state(data: bytes) -> int:
"""
Decode a 2-byte STATE response from the device.
Returns:
Integer state code; see STATE_* constants.
"""
if len(data) < 2:
raise ProtocolError(f"STATE response too short: {len(data)} bytes")
hex_str = data.hex()
state_hex = _flipfour(hex_str[0:4])
return int(state_hex, 16)
@staticmethod
def state_to_description(state_hex_str: str) -> str:
"""Return human-readable description for a state hex string."""
return STATE_DESCRIPTIONS.get(state_hex_str, "Unknown or reserved error.")
"""STATE is a two-byte error bitmask; zero acknowledges the command."""
if len(data) != 2:
raise ProtocolError(f"Expected 2 STATE bytes, got {len(data)}")
return int.from_bytes(data, "little")
@@ -1,257 +1,33 @@
"""
Parameter validation for laser control module.
Validates all input parameters against physical constraints
and protocol limits before sending to device.
"""
"""Physical limits checked before command encoding or any board reset."""
import math
from typing import Dict, Any, Tuple
from .constants import (
TEMP_MIN_C, TEMP_MAX_C,
CURRENT_MIN_MA, CURRENT_MAX_MA,
TEMP_MIN_C, TEMP_MAX_C, CURRENT_MIN_MA, CURRENT_MAX_MA,
CURRENT_STEP_MIN_MA, CURRENT_STEP_MAX_MA,
TEMP_STEP_MIN_C, TEMP_STEP_MAX_C,
TIME_STEP_MIN_US, TIME_STEP_MAX_US,
DELAY_TIME_MIN_MS, DELAY_TIME_MAX_MS,
TIME_STEP_MIN_US, TIME_STEP_MAX_US, DELAY_TIME_MIN_MS, DELAY_TIME_MAX_MS,
)
from .exceptions import (
ValidationError,
TemperatureOutOfRangeError,
CurrentOutOfRangeError,
InvalidParameterError,
)
from .models import VariationType
from .exceptions import ValidationError
class ParameterValidator:
"""Validates all input parameters for the laser controller."""
def _range(value: float, name: str, low: float, high: float) -> None:
if not isinstance(value, (int, float)) or not math.isfinite(value) or not low <= value <= high:
raise ValidationError(f"{name} must be a finite number in [{low}, {high}], got {value!r}")
@staticmethod
def _check_numeric(value: Any, param_name: str) -> float:
"""Check that value is a valid finite number. Returns float."""
if value is None:
raise InvalidParameterError(param_name, "Value must not be None")
if not isinstance(value, (int, float)):
raise InvalidParameterError(param_name, "Value must be a number")
if math.isnan(value):
raise InvalidParameterError(param_name, "Value must not be NaN")
if math.isinf(value):
raise InvalidParameterError(param_name, "Value must not be infinite")
return float(value)
@staticmethod
def validate_temperature(value: Any, param_name: str) -> float:
"""
Validate a laser temperature value.
def validate_manual(temp1: float, temp2: float, current1: float, current2: float) -> None:
for name, value in (("temp1", temp1), ("temp2", temp2)):
_range(value, name, TEMP_MIN_C, TEMP_MAX_C)
for name, value in (("current1", current1), ("current2", current2)):
_range(value, name, CURRENT_MIN_MA, CURRENT_MAX_MA)
Args:
value: Temperature in °C.
param_name: Parameter name for error messages.
Returns:
Validated temperature as float.
Raises:
InvalidParameterError: If value is not a valid number.
TemperatureOutOfRangeError: If value is outside [TEMP_MIN_C, TEMP_MAX_C].
"""
value = ParameterValidator._check_numeric(value, param_name)
if value < TEMP_MIN_C or value > TEMP_MAX_C:
raise TemperatureOutOfRangeError(
param_name, value, TEMP_MIN_C, TEMP_MAX_C
)
return value
@staticmethod
def validate_current(value: Any, param_name: str) -> float:
"""
Validate a laser drive current value.
Args:
value: Current in mA.
param_name: Parameter name for error messages.
Returns:
Validated current as float.
Raises:
InvalidParameterError: If value is not a valid number.
CurrentOutOfRangeError: If value is outside [CURRENT_MIN_MA, CURRENT_MAX_MA].
"""
value = ParameterValidator._check_numeric(value, param_name)
if value < CURRENT_MIN_MA or value > CURRENT_MAX_MA:
raise CurrentOutOfRangeError(
param_name, value, CURRENT_MIN_MA, CURRENT_MAX_MA
)
return value
@staticmethod
def validate_time_params(time_step: Any, delay_time: Any) -> Tuple[int, int]:
"""
Validate time parameters for variation mode.
Args:
time_step: Discretisation time step in microseconds.
delay_time: Delay between pulses in milliseconds.
Returns:
Tuple (time_step, delay_time) as integers.
Raises:
InvalidParameterError: If values are not numeric.
ValidationError: If values are outside allowed ranges.
"""
if not isinstance(time_step, (int, float)):
raise InvalidParameterError("time_step", "Value must be a number")
if not isinstance(delay_time, (int, float)):
raise InvalidParameterError("delay_time", "Value must be a number")
time_step_int = int(time_step)
delay_time_int = int(delay_time)
if time_step_int < TIME_STEP_MIN_US or time_step_int > TIME_STEP_MAX_US:
raise ValidationError(
f"time step {time_step_int} µs is out of range "
f"[{TIME_STEP_MIN_US} - {TIME_STEP_MAX_US}] µs"
)
if delay_time_int < DELAY_TIME_MIN_MS or delay_time_int > DELAY_TIME_MAX_MS:
raise ValidationError(
f"delay time {delay_time_int} ms is out of range "
f"[{DELAY_TIME_MIN_MS} - {DELAY_TIME_MAX_MS}] ms"
)
return time_step_int, delay_time_int
@staticmethod
def validate_variation_params(
params: Dict[str, Any],
variation_type: Any
) -> Dict[str, Any]:
"""
Validate parameters for variation mode.
Args:
params: Dictionary with keys:
min_value, max_value, step, time_step, delay_time.
variation_type: A VariationType enum value.
Returns:
Dictionary with validated and type-coerced values.
Raises:
ValidationError: For any constraint violation.
InvalidParameterError: For wrong types.
"""
# Validate variation type
if not isinstance(variation_type, VariationType):
try:
variation_type = VariationType(variation_type)
except (ValueError, KeyError):
raise ValidationError(
f"Invalid variation type '{variation_type}'. "
f"Must be one of {[e.name for e in VariationType]}"
)
# Check required keys
required_keys = {'min_value', 'max_value', 'step', 'time_step', 'delay_time'}
missing = required_keys - params.keys()
if missing:
raise ValidationError(
f"Missing required parameters: {sorted(missing)}"
)
# Validate min/max
min_val = ParameterValidator._check_numeric(params['min_value'], 'min_value')
max_val = ParameterValidator._check_numeric(params['max_value'], 'max_value')
if min_val >= max_val:
raise ValidationError(
f"min_value ({min_val}) must be less than max_value ({max_val})"
)
# Validate step based on variation type
step = ParameterValidator._check_numeric(params['step'], 'step')
is_current_variation = variation_type in (
VariationType.CHANGE_CURRENT_LD1,
VariationType.CHANGE_CURRENT_LD2
)
is_temp_variation = variation_type in (
VariationType.CHANGE_TEMPERATURE_LD1,
VariationType.CHANGE_TEMPERATURE_LD2
)
if is_current_variation:
step_min, step_max = CURRENT_STEP_MIN_MA, CURRENT_STEP_MAX_MA
unit = "mA"
# Also validate range against current limits
ParameterValidator.validate_current(min_val, 'min_value')
ParameterValidator.validate_current(max_val, 'max_value')
elif is_temp_variation:
step_min, step_max = TEMP_STEP_MIN_C, TEMP_STEP_MAX_C
unit = "°C"
# Also validate range against temperature limits
ParameterValidator.validate_temperature(min_val, 'min_value')
ParameterValidator.validate_temperature(max_val, 'max_value')
else:
raise ValidationError(
f"Variation type {variation_type.name} cannot be used in variation mode"
)
if step <= 0:
raise ValidationError(
f"step must be positive, got {step} {unit}"
)
if step < step_min:
raise ValidationError(
f"step {step} {unit} is too small (minimum {step_min} {unit})"
)
if step > step_max:
raise ValidationError(
f"step {step} {unit} is too large (maximum {step_max} {unit})"
)
# Validate time parameters
time_step, delay_time = ParameterValidator.validate_time_params(
params['time_step'], params['delay_time']
)
return {
'variation_type': variation_type,
'min_value': min_val,
'max_value': max_val,
'step': step,
'time_step': time_step,
'delay_time': delay_time,
}
@staticmethod
def validate_manual_mode_params(
temp1: Any,
temp2: Any,
current1: Any,
current2: Any,
) -> Dict[str, float]:
"""
Validate all four manual mode parameters.
Args:
temp1: Laser 1 temperature, °C.
temp2: Laser 2 temperature, °C.
current1: Laser 1 current, mA.
current2: Laser 2 current, mA.
Returns:
Dict with validated floats: temp1, temp2, current1, current2.
Raises:
ValidationError: For any out-of-range value.
InvalidParameterError: For wrong types.
"""
return {
'temp1': ParameterValidator.validate_temperature(temp1, 'temp1'),
'temp2': ParameterValidator.validate_temperature(temp2, 'temp2'),
'current1': ParameterValidator.validate_current(current1, 'current1'),
'current2': ParameterValidator.validate_current(current2, 'current2'),
}
def validate_variation(min_value: float, max_value: float, step: float,
time_step: int, delay_time: int) -> None:
for name, value in (("min_value", min_value), ("max_value", max_value)):
_range(value, name, CURRENT_MIN_MA, CURRENT_MAX_MA)
if min_value >= max_value:
raise ValidationError("min_value must be less than max_value")
_range(step, "step", CURRENT_STEP_MIN_MA, CURRENT_STEP_MAX_MA)
_range(time_step, "time_step (us)", TIME_STEP_MIN_US, TIME_STEP_MAX_US)
_range(delay_time, "delay_time (ms)", DELAY_TIME_MIN_MS, DELAY_TIME_MAX_MS)