Barometer Class Reference

Interface class for barometers. More...

#include <barometer.hpp>

Inheritance diagram for Barometer:

List of all members.

Public Member Functions
	Barometer (float pressure_at_sea_level=101325.0f)
virtual bool	init (void)=0
	Initialise the sensor.
virtual bool	update (void)=0
	Main update function Reads new values from sensor.
virtual uint64_t	last_update_us (void) const =0
	Get the last update time in microseconds.
virtual float	pressure (void) const =0
	Return the pressure (in Pa)
virtual float	altitude_gf (void) const =0
	Get the altitude in meters above sea level.
virtual float	altitude_gf_raw (void) const =0
	Get the altitude in meters above sea level (not filtered)
virtual float	vertical_speed_lf (void) const =0
	Get the vertical speed in meters/second.
virtual float	vertical_speed_lf_raw (void) const =0
	Get the vertical speed in meters/second (not filtered)
virtual float	temperature (void) const =0
	Get sensor temperature.
Static Public Member Functions
static float	pressure_at_sea_level (void)
	Get the pressure at sea level The pressure at sea level is used to compute altitude from pressure.
static float	compute_altitude_from_pressure (float pressure, float pressure_at_sea_level_=pressure_at_sea_level())
	Compute altitude above sea level from pressure.
static float	compute_pressure_at_sea_level (float pressure, float altitude)
	Compute pressure at sea level from pressure and altitude.
Static Protected Member Functions
static void	set_pressure_at_sea_level (float pressure_at_sea_level)
	Update the pressure at sea level The pressure at sea level is used to compute altitude from pressure.

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Detailed Description

Interface class for barometers.

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Member Function Documentation

virtual float Barometer::altitude_gf

(

void

)

const [pure virtual]

Get the altitude in meters above sea level.

Global frame: (>0 means upward)

Returns:

Value

Implemented in Barometer_MS5611, Barometer_BMP085, and Barometer_sim.

virtual float Barometer::altitude_gf_raw

(

void

)

const [pure virtual]

Get the altitude in meters above sea level (not filtered)

Global frame: (>0 means upward)

Returns:

Value

Implemented in Barometer_MS5611, Barometer_BMP085, and Barometer_sim.

float Barometer::compute_altitude_from_pressure	(	float	pressure,
		float	pressure_at_sea_level_ = pressure_at_sea_level()
	)		[static]

Compute altitude above sea level from pressure.

Parameters:

pressure	Current atmospheric pressure (in Pa)
pressure_at_sea_level	Pressure at sea level (in Pa) (optional)

Returns:

Altitude (global frame)

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float Barometer::compute_pressure_at_sea_level	(	float	pressure,
		float	altitude
	)		[static]

Compute pressure at sea level from pressure and altitude.

Parameters:

pressure	Current atmospheric pressure (in Pa)
altitude_	Altitude

Returns:

Pressure at sea level (in Pa)

virtual bool Barometer::init

(

void

)

[pure virtual]

Initialise the sensor.

Returns:

Success

Implemented in Barometer_MS5611, Barometer_BMP085, and Barometer_sim.

virtual uint64_t Barometer::last_update_us

(

void

)

const [pure virtual]

Get the last update time in microseconds.

Returns:

Value

Implemented in Barometer_MS5611, Barometer_BMP085, and Barometer_sim.

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virtual float Barometer::pressure

(

void

)

const [pure virtual]

Return the pressure (in Pa)

Returns:

Value

Implemented in Barometer_MS5611, Barometer_BMP085, and Barometer_sim.

float Barometer::pressure_at_sea_level

(

void

)

[static]

Get the pressure at sea level The pressure at sea level is used to compute altitude from pressure.

Parameters:

pressure_at_sea_level

(in Pa)

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void Barometer::set_pressure_at_sea_level

(

float

pressure_at_sea_level

)

[static, protected]

Update the pressure at sea level The pressure at sea level is used to compute altitude from pressure.

Parameters:

pressure_at_sea_level

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virtual float Barometer::temperature

(

void

)

const [pure virtual]

Get sensor temperature.

Returns:

Value

Implemented in Barometer_MS5611, Barometer_BMP085, and Barometer_sim.

virtual bool Barometer::update

(

void

)

[pure virtual]

Main update function Reads new values from sensor.

Returns:

Success

Implemented in Barometer_MS5611, Barometer_BMP085, and Barometer_sim.

virtual float Barometer::vertical_speed_lf

(

void

)

const [pure virtual]

Get the vertical speed in meters/second.

NED frame: (>0 means downward)

Returns:

Value

Implemented in Barometer_MS5611, Barometer_BMP085, and Barometer_sim.

virtual float Barometer::vertical_speed_lf_raw

(

void

)

const [pure virtual]

Get the vertical speed in meters/second (not filtered)

NED frame: (>0 means downward)

Returns:

Value

Implemented in Barometer_MS5611, Barometer_BMP085, and Barometer_sim.

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

• /home/travis/build/lis-epfl/MAVRIC_Library/drivers/barometer.hpp
• /home/travis/build/lis-epfl/MAVRIC_Library/drivers/barometer.cpp