larcfm::Priority Class Reference

#include <Priority.h>

Static Public Member Functions
static double	get_tc ()
static double	get_cruise_def ()
static double	get_vertical_deadband ()
static double	get_lateral_deadband ()
static double	get_lateral_relative_deadband ()
static double	get_time_maneuver_restriction ()
static double	get_time_proximity ()
static double	get_time_lookahead ()
static void	set_tc (double tc)
static void	set_cruise_def (double CruiseDef)
static void	set_vertical_deadband (double VerticalDeadband)
static void	set_lateral_deadband (double LateralDeadband)
static void	set_lateral_relative_deadband (double LateralRelativeDeadband)
static void	set_time_maneuver_restriction (double TimeManeuverRestriction)
static void	set_time_proximity (double TimeProximity)
static void	set_time_lookahead (double TimeLookahead)
static bool	lateral_only (double sox, double soy, double soz, double vox, double voy, double voz, double six, double siy, double siz, double vix, double viy, double viz)
static bool	check (double sox, double soy, double soz, double vox, double voy, double voz, bool mo, double six, double siy, double siz, double vix, double viy, double viz, bool mi)
static bool	checkLL (double lato, double lono, double alto, double trko, double gso, double vso, bool mo, double lati, double loni, double alti, double trki, double gsi, double vsi, bool mi)
static bool	check (const Position &po, const Velocity &vo, bool mo, const Position &pi, const Velocity &vi, bool mi)

Static Public Attributes
static double	TIME_MANEUVER_RESTRICTION
static double	TIME_PROXIMITY
static double	TIME_LOOKAHEAD

Detailed Description

This class is used to determine if one aircraft has priority over another aircraft. It is an encapsulation of the "right of way" rules.

Disclaimer: The current rules have been verified to have certain safety and liveness properties, but they have not been validated, that is, they may not behave "naturally." As we learn more about what is expected, these rules may evolve in the future.

Member Function Documentation

check() [1/2]

static bool larcfm::Priority::check ( const Position &  po, const Velocity &  vo, bool  mo, const Position &  pi, const Velocity &  vi, bool  mi  )

static

Determines if the ownship has priority over the given traffic aircraft.

Parameters

po	position of the ownship
vo	velocity of the ownship
mo	true if the ownship is managed
pi	position of the traffic aircraft
vi	velocity of the traffic aircraft
mi	true if the traffic aircraft is managed

Returns

true, if the ownship has priority over the traffic aircraft

check() [2/2]

static bool larcfm::Priority::check ( double  sox, double  soy, double  soz, double  vox, double  voy, double  voz, bool  mo, double  six, double  siy, double  siz, double  vix, double  viy, double  viz, bool  mi  )

static

Determines if the ownship has priority over the given traffic aircraft.

Parameters

sox	x component of the position of the ownship in [nmi]
soy	y component of the position of the ownship in [nmi]
soz	z component of the position of the ownship in [ft]
vox	x component of the velocity of the ownship in [knot]
voy	y component of the velocity of the ownship in [knot]
voz	z component of the velocity of the ownship in [fpm]
mo	true if the ownship is managed
six	x component of the position of the traffic aircraft in [nmi]
siy	y component of the position of the traffic aircraft in [nmi]
siz	z component of the position of the traffic aircraft in [ft]
vix	x component of the velocity of the traffic aircraft in [knot]
viy	y component of the velocity of the traffic aircraft in [knot]
viz	z component of the velocity of the traffic aircraft in [fpm]
mi	true if the traffic aircraft is managed

Returns

true, if the ownship has priority over the traffic aircraft

checkLL()

static bool larcfm::Priority::checkLL ( double  lato, double  lono, double  alto, double  trko, double  gso, double  vso, bool  mo, double  lati, double  loni, double  alti, double  trki, double  gsi, double  vsi, bool  mi  )

static

Determines if the ownship has priority over the given traffic aircraft.

Parameters

lato	latitude of the ownship in [degrees north]
lono	longitude of the ownship in [degrees east]
alto	altitude of the ownship in [ft]
trko	track angle of the velocity of the ownship in [deg, clockwise from true north]
gso	ground speed of the ownship in [knot]
vso	vertical speed of the ownship in [fpm]
mo	true if the ownship is managed
lati	latitude of the traffic aircraft in [degrees north]
loni	longitude of the traffic aircraft in [degrees east]
alti	altitude of the traffic aircraft in [ft]
trki	track angle of the velocity of the traffic aircraft in [deg, clockwise from true north]
gsi	ground speed of the traffic aircraft in [knot]
vsi	vertical speed of the traffic aircraft in [fpm]
mi	true if the traffic aircraft is managed

Returns

true, if the ownship has priority over the traffic aircraft

get_cruise_def()

static double larcfm::Priority::get_cruise_def ( )

inlinestatic

Returns the vertical speed value that defines "cruise" in [fpm]

get_lateral_deadband()

static double larcfm::Priority::get_lateral_deadband ( )

inlinestatic

Returns the value of the relative uncertainty in horizontal speed in [knot]

get_lateral_relative_deadband()

static double larcfm::Priority::get_lateral_relative_deadband ( )

inlinestatic

Returns the value of the relative uncertainty in horizontal speed in [knot]

get_tc()

static double larcfm::Priority::get_tc ( )

inlinestatic

Returns TC in seconds

get_time_lookahead()

static double larcfm::Priority::get_time_lookahead ( )

inlinestatic

returns the value of the time lookahead. I don't know what this parameter is for

get_time_maneuver_restriction()

static double larcfm::Priority::get_time_maneuver_restriction ( )

inlinestatic

returns the value of the time maneuver restrictions. I don't know what this parameter is for

get_time_proximity()

static double larcfm::Priority::get_time_proximity ( )

inlinestatic

returns the value of the time proximity. I don't know what this parameter is for

get_vertical_deadband()

static double larcfm::Priority::get_vertical_deadband ( )

inlinestatic

Returns the value of the relative uncertainty in vertical speed in [fpm]

lateral_only()

static bool larcfm::Priority::lateral_only ( double  sox, double  soy, double  soz, double  vox, double  voy, double  voz, double  six, double  siy, double  siz, double  vix, double  viy, double  viz  )

static

Determines if the ownship has priority (in the lateral dimension only) over the traffic aircraft.

Parameters

sox	x component of the position of the ownship in [nmi]
soy	y component of the position of the ownship in [nmi]
soz	z component of the position of the ownship in [ft]
vox	x component of the velocity of the ownship in [knot]
voy	y component of the velocity of the ownship in [knot]
voz	z component of the velocity of the ownship in [fpm]
six	x component of the position of the traffic aircraft in [nmi]
siy	y component of the position of the traffic aircraft in [nmi]
siz	z component of the position of the traffic aircraft in [ft]
vix	x component of the velocity of the traffic aircraft in [knot]
viy	y component of the velocity of the traffic aircraft in [knot]
viz	z component of the velocity of the traffic aircraft in [fpm]

Returns

true, if the ownship has priority over the traffic aircraft

set_cruise_def()

static void larcfm::Priority::set_cruise_def ( double  CruiseDef )

inlinestatic

Set the value of the vertical speed that defines "cruise" in [fpm]

This value should never change; however, since its precise values is still to be experimentally determined, it is left modifiable.

set_lateral_deadband()

static void larcfm::Priority::set_lateral_deadband ( double  LateralDeadband )

inlinestatic

Set the value of the relative uncertainty in the horizontal speed in [knot]

This value should never change; however, since its precise values is still to be experimentally determined, it is left modifiable.

set_lateral_relative_deadband()

static void larcfm::Priority::set_lateral_relative_deadband ( double  LateralRelativeDeadband )

inlinestatic

Set the value of the relative uncertainty in the horizontal speed in [knot]

This value should never change; however, since its precise values is still to be experimentally determined, it is left modifiable.

set_tc()

static void larcfm::Priority::set_tc ( double  tc )

inlinestatic

Set the value of the relative uncertainty in the horizontal speed in [knot]

This value should never change; however, since its precise values is still to be experimentally determined, it is left modifiable.

set_time_lookahead()

static void larcfm::Priority::set_time_lookahead ( double  TimeLookahead )

inlinestatic

Set the value of the time lookahead. I don't know what this parameter is for

set_time_maneuver_restriction()

static void larcfm::Priority::set_time_maneuver_restriction ( double  TimeManeuverRestriction )

inlinestatic

Set the value of the time to maneuver. I don't know what this parameter is for

set_time_proximity()

static void larcfm::Priority::set_time_proximity ( double  TimeProximity )

inlinestatic

Set the value of the time proximity. I don't know what this parameter is for

set_vertical_deadband()

static void larcfm::Priority::set_vertical_deadband ( double  VerticalDeadband )

inlinestatic

Set the value of the relative uncertainty in vertical speed in [fpm]

This value should never change; however, since its precise values is still to be experimentally determined, it is left modifiable.

Member Data Documentation

TIME_LOOKAHEAD

double larcfm::Priority::TIME_LOOKAHEAD

static

I don't know what this parameter is for

TIME_MANEUVER_RESTRICTION

double larcfm::Priority::TIME_MANEUVER_RESTRICTION

static

I don't know what this parameter is for

TIME_PROXIMITY

double larcfm::Priority::TIME_PROXIMITY

static

I don't know what this parameter is for

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The documentation for this class was generated from the following file:

• Modules/ACCoRD/inc/Priority.h