Station Beam Health Rules

A file to store health transition rules for station.

class StationBeamHealthRules(*args: Any, **kwargs: Any)

A class to handle transition rules for station.

__init__(thresholds: dict[str, float] | None = None) → None

Create a new instance and initialise beam locked to true.

Parameters:

thresholds – the conditions for particular health states

property default_thresholds: dict[str, float]

Get the default thresholds for this device.

Returns:

the default thresholds

degraded_rule(failed_pointing_updates: int | None, station_fault: bool, station_health: ska_control_model.HealthState, antenna_healths: dict[str, ska_control_model.HealthState | None]) → tuple[bool, str]

Test whether DEGRADED is valid for the station.

Parameters:

• failed_pointing_updates – how many failed pointing updates in a row.

• station_fault – If the station is in fault state.

• station_health – Health of the station.

• antenna_healths – Health of the antennas.

Returns:

If the station beam is degraded or not.

failed_rule(failed_pointing_updates: int | None, station_fault: bool, station_health: ska_control_model.HealthState, antenna_healths: dict[str, ska_control_model.HealthState | None]) → tuple[bool, str]

Test whether FAILED is valid for the station beam.

Parameters:

• failed_pointing_updates – how many failed pointing updates in a row.

• station_fault – If the station is in fault state.

• station_health – Health of the station.

• antenna_healths – Health of the antennas.

Returns:

If the station beam is failed or not.

healthy_rule(failed_pointing_updates: int | None, station_fault: bool, station_health: ska_control_model.HealthState, antenna_healths: dict[str, ska_control_model.HealthState | None]) → tuple[bool, str]

Test whether OK is valid for the station.

Parameters:

• failed_pointing_updates – how many failed pointing updates in a row.

• station_fault – If the station is in fault state.

• station_health – Health of the station.

• antenna_healths – Health of the antennas.

Returns:

If the station beam is healthy or not.

unknown_rule(failed_pointing_updates: int | None, station_fault: bool, station_health: ska_control_model.HealthState, antenna_healths: dict[str, ska_control_model.HealthState | None]) → tuple[bool, str]

Test whether UNKNOWN is valid for the station beam.

Parameters:

• failed_pointing_updates – how many failed pointing updates in a row.

• station_fault – If the station is in fault state.

• station_health – Health of the station.

• antenna_healths – Health of the antennas.

Returns:

If the station beam is in unknown state.