Unpack net_ctrl Packet from FlightGear

Unpack net_ctrl variable packet received from FlightGear

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Libraries:
Aerospace Blockset / Animation / Flight Simulator Interfaces

Description

The Unpack net_ctrl Packet from FlightGear block unpacks net_ctrl variable packets received from FlightGear via the Receive net_ctrl Packet from FlightGear block, and makes them available for the Simulink^® environment.

The Aerospace Blockset™ product supports FlightGear versions starting from v2.6. If you are using a FlightGear version older than 2.6, the model displays a notification from the Simulink Upgrade Advisor. Consider using the Upgrade Advisor to upgrade your FlightGear version. For more information, see Supported FlightGear Versions.

Examples

HL-20 Project with Optional FlightGear Interface

Model NASA HL-20 lifting body and controller modeled in Simulink and Aerospace Blockset, using FlightGear for visualization.

• Open Live Script

Ports

Input

net_ctrl — FlightGear packet to be unpacked

array

FlightGear packet to be unpacked, specified as an array.

Data Types: uint8

Output

Environment Outputs

wind_speed_kt — Wind speed

scalar

Wind speed, specified as a scalar, in knots.

Dependencies

To enable this port, select the Show environment outputs check box.

Data Types: double

wind_dir_deg — Wind direction

scalar

Wind direction, specified as a scalar, in deg.

Dependencies

To enable this port, select the Show environment outputs check box.

Data Types: double

turbulence_norm — Turbulence norm

scalar

Turbulence norm, specified as a scalar.

Dependencies

To enable this port, select the Show environment outputs check box.

Data Types: double

temp_c — Ambient temperature

scalar

Ambient temperature, specified as a scalar, in deg C.

Dependencies

To enable this port, select the Show environment outputs check box.

Data Types: double

press_inhg — Ambient pressure

scalar

Ambient pressure, specified as a scalar, in inHg.

Dependencies

To enable this port, select the Show environment outputs check box.

Data Types: double

hground — Ground elevation

scalar

Ground elevation, specified as a scalar, in m.

Dependencies

To enable this port, select the Show environment outputs check box.

Data Types: double

magvar — Local magnetic variation

scalar

Local magnetic variation, specified as a scalar.

Dependencies

To enable this port, select the Show environment outputs check box.

Data Types: double

icing — Icing status

scalar

Icing status, specified as a scalar, in deg.

Dependencies

To enable this port, select the Show environment outputs check box.

Data Types: uint32

Control Surface Position Inputs

aileron — Normalized aileron position

1 | scalar

Normalized aileron position [-1,1], specified as a scalar.

Dependencies

To enable this port, select the Show control surface position outputs check box.

Data Types: double

elevator — Normalized elevator position

1 | scalar

Normalized elevator position [-1,1], specified as a scalar.

Dependencies

To enable this port, select the Show control surface position outputs check box.

Data Types: double

rudder — Normalized rudder position

1 | scalar

Normalized rudder position [-1,1], specified as a scalar.

Dependencies

To enable this port, select the Show control surface position outputs check box.

Data Types: double

aileron_trim — Normalized aileron trim position

scalar

Normalized aileron trim position [-1,1], specified as a scalar.

Dependencies

To enable this port, select the Show control surface position outputs check box.

Data Types: double

elevator_trim — Normalized elevator trim position

1 | scalar

Normalized elevator trim position [-1,1], specified as a scalar.

Dependencies

To enable this port, select the Show control surface position outputs check box.

Data Types: double

rudder_trim — Normalized rudder trim position

1 | scalar

Normalized rudder trim position [-1,1], specified as a scalar.

Dependencies

To enable this port, select the Show control surface position outputs check box.

Data Types: double

flaps — Normalized flaps position

1 | scalar

Normalized flaps position [-0,1], specified as a scalar.

Dependencies

To enable this port, select the Show control surface position outputs check box.

Data Types: double

spoilers — Normalized spoilers position

1 | scalar

Normalized spoilers position [0,1], specified as a scalar.

Dependencies

To enable this port, select the Show control surface position outputs check box.

Data Types: single

speedbrake — Normalized speedbrake position

1 | scalar

Normalized speedbrake position [0,1], specified as a scalar.

Dependencies

To enable this port, select the Show control surface position outputs check box.

Data Types: single

flaps_power — Power for flaps

1 | scalar

Power for flaps, specified as a scalar. A value of 1 indicates that power is available.

Dependencies

To enable this port, select the Show control surface position outputs check box.

Data Types: uint32

flap_motor_ok — Flap motor powered

scalar

Flap motor powered, specified as a scalar.

Dependencies

To enable this port, select the Show control surface position outputs check box.

Data Types: uint32

Engine/Fuel Outputs

num_engines — Number of valid engines

scalar

Number of valid engines, specified as a scalar.

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: uint32

master_bat — Master battery switch

vector

Master battery switch, specified as a vector.

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: uint32

master_alt — Master alternator switch

vector

Master alternator switch, specified as a vector.

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: uint32

magnetos — Magnetos switch

scalar

Magnetos switch, specified as a scalar.

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: uint32

starter_power — Power to start motor

1 | vector

Power to starter motor, specified as a vector. A value of 1 indicates that power is available.

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: uint32

throttle — Normalized throttle position

1 | vector

Normalized throttle position [0,1], specified as a vector.

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: double

mixture — Normalized mixture lever position

1 | vector

Normalized mixture lever position [0,1], specified as a vector.

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: double

condition — Normalized condition

1 | vector

Normalized condition [0,1], specified as a vector.

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: uint32

fuel_pump_power — Normalized speedbrake position

1 | scalar

Power to fuel pump, specified as a vector. A value of 1 indicates that pump is on.

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: uint32

prop_advance — Propeller advance

1 | vector

Propeller advance [0,1], specified as a vector.

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: double

feed_tank_to — Feed tank to switch

vector

Feed tank to switch, specified as a vector.

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: uint32

reverse — Reverse switch

vector

Reverse switch, specified as a vector.

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: uint32

engine_ok — Engine status indicator

vector

Engine status indicator, specified as a vector.

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: uint32

mag_left_ok — Left magneto status indicator

vector

Left magneto status indicator, specified as a vector.

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: uint32

mag_right_ok — Right magneto status indicator

vector

Right magneto status indicator, specified as a vector.

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: uint32

spark_plugs_ok — Normalized speedbrake position

vector

Spark plugs status indicator, specified as a vector. A value of 0 indicates that the plugs have failed.

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: uint32

oil_press_status — Oil pressure status indicator

0 | 1 | 2 | scalar

Oil pressure status indicator, specified as a vector.

• 0 — Normal oil pressure

• 1 — Low oil pressure

• 2 — Failed oil pressure

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: uint32

fuel_pump_ok — Fuel management status indicator

vector

Fuel management status indicator, specified as a vector.

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: uint32

num_tanks — Number of valid tanks

scalar

Number of valid tanks, specified as a scalar.

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: uint32

fuel_selector — Fuel selector

scalar

Fuel selector, specified as a vector.

• 0 — Off

• 1 — On

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: single

xfer_pump — Specify transfer

vector

Specifies transfer from array value to tank, specified by value as a vector.

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: uint32

cross_feed — Cross feed valve

scalar

Cross feed valve, specified as a scalar.

• 0 — False

• 1 — On

Dependencies

To enable this port, select the Show engine/fuel outputs check box.

Data Types: single

Landing Gear Outputs

brake_left — Left brake pedal position pilot

scalar

Left brake pedal position pilot, specified as a scalar.

Dependencies

To enable this port, select the Show landing gear outputs check box.

Data Types: double

brake_right — Right brake pedal position pilot

scalar

Right brake pedal position pilot, specified as a scalar.

Dependencies

To enable this port, select the Show landing gear outputs check box.

Data Types: double

copilot_brake_left — Left brake pedal position pilot

scalar

Left brake pedal position pilot, specified as a scalar.

Dependencies

To enable this port, select the Show landing gear outputs check box.

Data Types: double

copilot_brake_right — Right brake pedal position pilot

scalar

Right brake pedal position pilot, specified as a scalar.

Dependencies

To enable this port, select the Show landing gear outputs check box.

Data Types: double

brake_parking — Brake parking position

scalar

Brake parking position, specified as a scalar.

Dependencies

To enable this port, select the Show landing gear outputs check box.

Data Types: double

gear_handle — Gear handle position

scalar

Gear handle position, specified as a scalar.

• 0 — Gear handle up

• 1 — Gear handle down

Dependencies

To enable this port, select the Show landing gear outputs check box.

Data Types: uint32

Avionic Outputs

master_avionics — Master avionics switch

scalar

Master avionics switch, specified as a scalar.

Dependencies

To enable this port, select the Show avionic outputs check box.

Data Types: uint32

comm_1 — Comm 1 frequency

scalar

Comm 1 frequency, specified as a scalar, in Hz.

Dependencies

To enable this port, select the Show avionic outputs check box.

Data Types: double

comm_2 — Comm 2 frequency

scalar

Comm 2 frequency, specified as a scalar, in Hz.

Dependencies

To enable this port, select the Show avionic outputs check box.

Data Types: double

nav_1 — Nav 1 frequency

scalar

Nav 1 frequency, specified as a scalar, in Hz.

Dependencies

To enable this port, select the Show avionic outputs check box.

Data Types: double

nav_2 — Nav 2 frequency

scalar

Nav 2 frequency, specified as a scalar, in Hz.

Dependencies

To enable this port, select the Show avionic outputs check box.

Data Types: double

Parameters

Show control surface position outputs — Control surface position outputs

off (default) | on

Select this check box to include the control surface position outputs from the FlightGear net_ctrl data packet.

Dependencies

Select this check box to enable these input ports.

Signal Group 1: Control surface position outputs

Name	Units	Type	Width	Description
aileron	1 (dimensionless)	double	1	Normalized aileron position [-1,1]
elevator	1 (dimensionless)	double	1	Normalized elevator position [-1,1]
rudder	1 (dimensionless)	double	1	Normalized rudder position [-1,1]
aileron_trim	1 (dimensionless)	double	1	Normalized aileron trim position [-1,1]
elevator_trim	1 (dimensionless)	double	1	Normalized elevator trim position [-1,1]
rudder_trim	1 (dimensionless)	double	1	Normalized rudder trim position [-1,1]
flaps	1 (dimensionless)	double	1	Normalized flaps position [-0,1]
spoilers	1 (dimensionless)	double	1	Normalized spoilers position [0,1]
speedbrake	1 (dimensionless)	double	1	Normalized speedbrake position [0,1]
flaps_power	1 (dimensionless)	uint32	1	Power for flaps (1 = power available)
flap_motor_ok	—	uint32	1	Flap motor powered

Programmatic Use

Block Parameter: ShowControlSurfacePositionOutputs

Type: character vector

Values: 'off' | 'on'

Default: 'off'

Show engine/fuel outputs — Engine/fuel outputs

off (default) | on

Select this check box to include the engine and fuel outputs from the FlightGear net_ctrl data packet.

Dependencies

Select this check box to enable these input ports.

Signal Group 2: Engine/fuel outputs

Name	Units	Type	Width	Description
num_engines	—	uint32	1	Number of valid engines
master_bat	—	uint32	4	Master battery switch
master_alt	—	uint32	4	Master alternator switch
magnetos	—	uint32	4	Magnetos switch
starter_power	—	uint32	4	Power to starter motor (1 = starter power available)
throttle	1 (dimensionless)	double	4	Normalized throttle position [0,1]
mixture	1 (dimensionless)	double	4	Normalized mixture lever position [0,1]
condition	1 (dimensionless)	double	4	Normalized condition [0,1]
fuel_pump_power	—	uint32	4	Power to fuel pump 1 = on)
prop_advance	1 (dimensionless)	double	4	Propeller advance [0,1]
feed_tank_to	—	uint32	4	Feed tank to switch
reverse	—	uint32	4	Reverse switch
engine_ok	—	uint32	4	Engine status indicator
mag_left_ok	—	uint32	4	Left magneto status indicator
mag_right_ok	—	uint32	4	Right magneto status indicator
spark_plugs_ok	—	uint32	4	Spark plugs status indicator (0 = failed plugs)
oil_press_status	—	uint32	4	Oil pressure status indicator (0 = normal, 1 = low, 2 = full failure)
fuel_pump_ok	—	uint32	4	Fuel management status indicator
num_tanks	—	uint32	1	Number of valid tanks
fuel_selector	—	uint32	8	Fuel selector. (0 = off, 1 = on)
xfer_pump	—	uint32	5	Specifies transfer from array value to tank specified by value
cross_feed	—	uint32	1	Cross feed valve (0 = false, 1 = on)

Programmatic Use

Block Parameter: ShowEngineFuelOutputs

Type: character vector

Values: 'off' | 'on'

Default: 'off'

Show landing gear outputs — Landing gear outputs

off (default) | on

Select this check box to include the landing gear outputs from the FlightGear net_ctrl data packet.

Dependencies

Select this check box to enable these input ports.

Signal Group 3: Landing gear outputs

Name	Units	Type	Width	Description
brake_left	—	double	1	Left brake pedal position pilot
brake_right	—	double	1	Right brake pedal position pilot
copilot_brake_left	—	double	1	Left brake pedal position copilot
copilot_brake_right	—	double	1	Right brake pedal position copilot
brake_parking	—	double	1	Brake parking position
gear_handle	—	uint32	1	Gear handle position (1 = gear handle down, 0 = gear handle up)

Programmatic Use

Block Parameter: ShowLandingGearOutputs

Type: character vector

Values: 'off' | 'on'

Default: 'off'

Show avionic outputs — Avionic outputs

off (default) | on

Select this check box to include the avionic outputs from the FlightGear net_ctrl data packet.

Dependencies

Select this check box to enable these input ports.

Signal Group 4: Avionics outputs

Name	Units	Type	Width	Description
master_avionics	—	uint32	1	Master avionics switch
comm_1	Hz	double	1	Comm 1 frequency
comm_2	Hz	double	1	Comm 2 frequency
nav_1	Hz	double	1	Nav 1 frequency
nav_2	Hz	double	1	Nav 2 frequency

Programmatic Use

Block Parameter: ShowAvionicOutputs

Type: character vector

Values: 'off' | 'on'

Default: 'off'

Show environment outputs — Environment outputs

on (default) | off

Select this check box to include the environment outputs from the FlightGear net_ctrl data packet.

Dependencies

Select this check box to enable these input ports.

Signal Group 5: Environment outputs

Name	Units	Type	Width	Description
wind_speed_kt	knot	double	1	Wind speed
wind_dir_deg	deg	double	1	Wind direction
turbulence_norm	—	double	1	Turbulence norm
temp_c	deg C	double	1	Ambient temperature
press_inhg	inHg	double	1	Ambient pressure
hground	m	double	1	Ground elevation
magvar	deg	double	1	Local magnetic variation
icing	–	uint32	1	Icing status

Programmatic Use

Block Parameter: ShowEnvironmentOutputs

Type: character vector

Values: 'off' | 'on'

Default: 'on'

Sample time — Sample time

1/30 (default) | scalar

Specify the sample time (-1 for inherited), as a scalar.

Programmatic Use

Block Parameter: SampleTime

Type: character vector

Values: scalar

Default: '1/30'

Version History

Introduced in R2012a