#include <vpQbDevice.h>

Inheritance diagram for vpQbDevice:

Public Member Functions
	vpQbDevice ()

virtual	~vpQbDevice ()

Inherited public functionalities from vpQbDevice
double	getCurrentMax () const

std::vector< short int >	getPositionLimits () const

void	setMaxRepeats (const int &max_repeats)

Protected Member Functions
Inherited protected functionalities from vpQbDevice
virtual int	activate (const int &id, const bool &command, const int &max_repeats)

virtual int	activate (const int &id, const int &max_repeats)

virtual bool	close (const std::string &serial_port)

virtual int	deactivate (const int &id, const int &max_repeats)

virtual int	getCurrents (const int &id, const int &max_repeats, std::vector< short int > &currents)

virtual int	getInfo (const int &id, const int &max_repeats, std::string &info)

virtual int	getMeasurements (const int &id, const int &max_repeats, std::vector< short int > &currents, std::vector< short int > &positions)

virtual int	getParameters (const int &id, std::vector< int > &limits, std::vector< int > &resolutions)

virtual int	getPositions (const int &id, const int &max_repeats, std::vector< short int > &positions)

virtual int	getSerialPortsAndDevices (const int &max_repeats)

virtual bool	init (const int &id)

virtual int	isActive (const int &id, const int &max_repeats, bool &status)

int	isConnected (const int &id, const int &max_repeats)

virtual bool	isInConnectedSet (const int &id)

virtual bool	isInOpenMap (const std::string &serial_port)

bool	isReliable (int const &failures, int const &max_repeats)

virtual int	open (const std::string &serial_port)

virtual int	setCommandsAndWait (const int &id, const int &max_repeats, std::vector< short int > &commands)

virtual int	setCommandsAsync (const int &id, std::vector< short int > &commands)

Protected Attributes
int	m_max_repeats

bool	m_init_done

Detailed Description

Interface for qbrobotics devices.

See https://qbrobotics.com/ for more details.

This class was tested with the qbSoftHand.

Definition at line 63 of file vpQbDevice.h.

Constructor & Destructor Documentation

vpQbDevice::vpQbDevice ( )

Default constructor that does nothing. To connect to a device call init().

Definition at line 476 of file vpQbDevice.cpp.

References setMaxRepeats().

vpQbDevice::~vpQbDevice ( )

virtual

Close all the still open serial ports.

See also: close()

Definition at line 486 of file vpQbDevice.cpp.

Member Function Documentation

int vpQbDevice::activate	(	const int &	id,
		const bool &	command,
		const int &	max_repeats
	)

protectedvirtual

Activate (or deactivate, according to the given command) the motors of the given device. Do nothing if the device is not connected in the Communication Handler.

Parameters

id	The ID of the device to be activated (or deactivated), in range [`1`, `128`].
command	`true` to turn motors on, `false` to turn them off.
max_repeats	The maximum number of consecutive repetitions to mark retrieved data as corrupted.

See also: activate(const int &, const int &), deactivate(), isActive()

Definition at line 499 of file vpQbDevice.cpp.

int vpQbDevice::activate	(	const int &	id,
		const int &	max_repeats
	)

protectedvirtual

Activate the motors of the given device. Do nothing if the device is not connected in the Communication Handler.

Parameters

id	The ID of the device to be activated, in range [`1`, `128`].
max_repeats	The maximum number of consecutive repetitions to mark retrieved data as corrupted.

See also: isActive()

Definition at line 510 of file vpQbDevice.cpp.

bool vpQbDevice::close ( const std::string & serial_port )

protectedvirtual

Close the communication with all the devices connected to the given serial port.

Parameters

serial_port The serial port which has to be closed, e.g. /dev/ttyUSB* (Unix), /dev/tty.usbserial-* (MacOS) or COM* (Windows).

See also: isInOpenMap(), open()

Definition at line 521 of file vpQbDevice.cpp.

int vpQbDevice::deactivate	(	const int &	id,
		const int &	max_repeats
	)

protectedvirtual

Deactivate the motors of the given device. Do nothing if the device is not connected in the Communication Handler.

Parameters

id	The ID of the device to be deactivated, in range [`1`, `128`].
max_repeats	The maximum number of consecutive repetitions to mark retrieved data as corrupted.

See also: activate(const int &, const bool &, const int &), isActive()

Definition at line 532 of file vpQbDevice.cpp.

double vpQbDevice::getCurrentMax ( ) const

Return the maximum current supported by the device.

Examples:: testQbSoftHand.cpp.

Definition at line 540 of file vpQbDevice.cpp.

Referenced by vpQbSoftHand::setPosition().

int vpQbDevice::getCurrents	(	const int &	id,
		const int &	max_repeats,
		std::vector< short int > &	currents
	)

protectedvirtual

Retrieve the motor currents of the given device.

Parameters

	id	The ID of the device of interest, in range [`1`, `128`].
	max_repeats	The maximum number of consecutive repetitions to mark retrieved data as corrupted.
[out]	currents	The two-element device motor current vector, expressed in mA: if the device is a qbhand only the first element is filled while the other remains always `0`; in the case of a qbmove both the elements contain relevant data, i.e. the currents respectively of `motor_1` and `motor_2`.

Returns: 0 on success.

See also: getMeasurements(), getPositions()

Definition at line 555 of file vpQbDevice.cpp.

Referenced by vpQbSoftHand::getCurrent().

int vpQbDevice::getInfo	(	const int &	id,
		const int &	max_repeats,
		std::string &	info
	)

protectedvirtual

Retrieve the printable configuration setup of the given device.

Parameters

id	The ID of the device of interest, in range [`1`, `128`].
max_repeats	The maximum number of consecutive repetitions to mark retrieved data as corrupted.
info	The configuration setup formatted as a plain text string (empty string on communication error).

Returns: The number of failure reads between 0 and max_repeats.

See also: getParameters()

Definition at line 568 of file vpQbDevice.cpp.

int vpQbDevice::getMeasurements	(	const int &	id,
		const int &	max_repeats,
		std::vector< short int > &	currents,
		std::vector< short int > &	positions
	)

protectedvirtual

Retrieve the motor currents of the given device.

Parameters

	id	The ID of the device of interest, in range [`1`, `128`].
[out]	currents	The two-element device motor current vector, expressed in mA: if the device is a qbhand only the first element is filled while the other remains always `0`; in the case of a qbmove both the elements contain relevant data, i.e. the currents respectively of `motor_1` and `motor_2`.
[out]	positions	The device position vector, expressed in ticks: if the device is a qbhand only the first element is filled while the others remain always `0`; in the case of a qbmove all the elements contain relevant data, i.e. the positions respectively of `motor_1`, `motor_2` and `motor_shaft` (which is not directly actuated).
	max_repeats	The maximum number of consecutive repetitions to mark retrieved data as corrupted.

Returns: The number of failure reads between 0 and max_repeats.

See also: getCurrents(), getPositions()

Definition at line 587 of file vpQbDevice.cpp.

int vpQbDevice::getParameters	(	const int &	id,
		std::vector< int > &	limits,
		std::vector< int > &	resolutions
	)

protectedvirtual

Retrieve some of the parameters from the given device.

Parameters

	id	The ID of the device of interest, in range [`1`, `128`].
[out]	limits	The vector of motor position limits expressed in ticks: two values for each motor, respectively [`lower_limit`, `upper_limit`].
[out]	resolutions	The vector of encoder resolutions, each in range [`0`, `8`]: one value for each encoder (note: the qbmove has also the shaft encoder even if it is not actuated). The word "resolution" could be misunderstood: taken the resolution `r`, is the number of turns of the wire inside the device mechanics. It is used essentially to convert the measured position of the motors in ticks to radians or degrees.

Returns: 0 on success.

See also: getInfo(), init()

Definition at line 604 of file vpQbDevice.cpp.

std::vector< short int > vpQbDevice::getPositionLimits ( ) const

Returns: Position limits as a 2-dim vector with min and max values.

Definition at line 612 of file vpQbDevice.cpp.

Referenced by vpQbSoftHand::getPosition(), and vpQbSoftHand::setPosition().

int vpQbDevice::getPositions	(	const int &	id,
		const int &	max_repeats,
		std::vector< short int > &	positions
	)

protectedvirtual

Retrieve the motor positions of the given device.

Parameters

	id	The ID of the device of interest, in range [`1`, `128`].
[out]	positions	The device position vector, expressed in ticks: if the device is a qbhand only the first element is filled while the others remain always `0`; in the case of a qbmove all the elements contain relevant data, i.e. the positions respectively of `motor_1`, `motor_2` and `motor_shaft` (which is not directly actuated).
	max_repeats	The maximum number of consecutive repetitions to mark retrieved data as corrupted.

Returns: The number of failure reads between 0 and max_repeats.

See also: getMeasurements()

Definition at line 628 of file vpQbDevice.cpp.

Referenced by vpQbSoftHand::getPosition().

int vpQbDevice::getSerialPortsAndDevices ( const int & max_repeats )

protectedvirtual

Scan for all the serial ports of type /dev/ttyUSB* detected in the system, initialize their mutex protector (each serial port connected to the system has to be accessed in a mutually exclusive fashion), and retrieve all the qbrobotics devices connected to them. For each device, store its ID in the private map m_connected_devices, i.e. insert a pair [device_id, serial_port]. The map m_connected_devices is constructed from scratch at each call.

Parameters

max_repeats The maximum number of consecutive repetitions to mark retrieved data as corrupted.

Returns: the number of connected devices.

See also: isInConnectedSet(), open()

Definition at line 643 of file vpQbDevice.cpp.

bool vpQbDevice::init ( const int & id )

protectedvirtual

Initialize the device if the relative physical device is connected through any serial port to the system. If the device is found, retrieve some of its parameter and activate its motors, if requested.

Parameters

id	The ID of the device of interest, in range [`1`, `128`].

Returns: true if the call succeed.

See also: getSerialPortsAndDevices()

Definition at line 655 of file vpQbDevice.cpp.

References m_init_done.

Referenced by vpQbSoftHand::getCurrent(), vpQbSoftHand::getPosition(), and vpQbSoftHand::setPosition().

int vpQbDevice::isActive	(	const int &	id,
		const int &	max_repeats,
		bool &	status
	)

protectedvirtual

Check whether the motors of the device specified by the given ID are active.

Parameters

id	The ID of the device of interest, in range [`1`, `128`].
max_repeats	The maximum number of consecutive repetitions to mark retrieved data as corrupted.
status	`true` if the device motors are on.

Returns: The number of failure reads between 0 and max_repeats.

Definition at line 672 of file vpQbDevice.cpp.

int vpQbDevice::isConnected	(	const int &	id,
		const int &	max_repeats
	)

protected

Check whether the the device specified by the given ID is connected through the serial port.

Parameters

id	The ID of the device of interest, in range [`1`, `128`].
max_repeats	The maximum number of consecutive repetitions to mark retrieved data as corrupted.

Returns: The number of failure reads between 0 and max_repeats.

Definition at line 683 of file vpQbDevice.cpp.

bool vpQbDevice::isInConnectedSet ( const int & id )

protectedvirtual

Check whether the physical device specified by the given ID is connected to the Communication Handler.

Parameters

id	The ID of the device of interest, in range [`1`, `128`].

Returns: true if the given device belongs to the connected device vector, i.e. m_connected_devices.

See also: getSerialPortsAndDevices()

Definition at line 694 of file vpQbDevice.cpp.

Referenced by vpQbSoftHand::getCurrent(), vpQbSoftHand::getPosition(), and vpQbSoftHand::setPosition().

bool vpQbDevice::isInOpenMap ( const std::string & serial_port )

protectedvirtual

Check whether the given serial port is managed by the communication handler, i.e. is open.

Parameters

serial_port The name of the serial port of interest, e.g. /dev/ttyUSB0.

Returns: true if the given serial port belongs to the open file descriptor map, i.e. m_file_descriptors.

See also: open(), close()

Definition at line 705 of file vpQbDevice.cpp.

bool vpQbDevice::isReliable	(	int const &	failures,
		int const &	max_repeats
	)

protected

Check whether the reading failures are in the given range.

Parameters

failures	The current number of communication failures per serial resource reading.
max_repeats	The maximum number of consecutive repetitions to mark retrieved data as corrupted.

Returns: true if the failures are less than the given threshold.

Definition at line 716 of file vpQbDevice.cpp.

Referenced by vpQbSoftHand::getCurrent(), vpQbSoftHand::getPosition(), and vpQbSoftHand::setPosition().

int vpQbDevice::open ( const std::string & serial_port )

protectedvirtual

Open the serial communication on the given serial port. On success, store the opened file descriptor in the private map m_file_descriptors, i.e. insert a pair [serial_port, file_descriptor].

Parameters

serial_port The serial port which has to be opened, e.g. /dev/ttyUSB0.

Returns: 0 on success.

See also: close(), isInOpenMap()

Definition at line 728 of file vpQbDevice.cpp.

int vpQbDevice::setCommandsAndWait	(	const int &	id,
		const int &	max_repeats,
		std::vector< short int > &	commands
	)

protectedvirtual

Send the reference command to the motors of the given device and wait for acknowledge.

Parameters

id	The ID of the device of interest, in range [`1`, `128`].
max_repeats	The maximum number of consecutive repetitions to mark retrieved data as corrupted.
commands	The reference command vector, expressed in ticks: if the device is a qbhand only the first element is meaningful while the other remains always `0`; in the case of a qbmove both the elements contain relevant data, i.e. the commands respectively of `motor_1` and `motor_2`.

Returns: 0 on success.

Definition at line 742 of file vpQbDevice.cpp.

int vpQbDevice::setCommandsAsync	(	const int &	id,
		std::vector< short int > &	commands
	)

protectedvirtual

Send the reference command to the motors of the given device in a non-blocking fashion.

Parameters

id	The ID of the device of interest, in range [`1`, `128`].
commands	The reference command vector, expressed in ticks: if the device is a qbhand only the first element is meaningful while the other remains always `0`; in the case of a qbmove both the elements contain relevant data, i.e. the commands respectively of `motor_1` and `motor_2`.