Public Member Functions | Private Member Functions | Private Attributes
PathFollower Class Reference

List of all members.

Public Member Functions

bool getRobotPose (tf::StampedTransform &globalToBase, const std::string &global_frame_id)
void goalActionCB (const move_base_msgs::MoveBaseGoalConstPtr &goal)
void goalCB (const geometry_msgs::PoseStampedConstPtr &goal)
void pathActionCB (const naoqi_bridge_msgs::FollowPathGoalConstPtr &goal)
void pathCB (const nav_msgs::PathConstPtr &goal)
 PathFollower ()
 ~PathFollower ()

Private Member Functions

void footContactCallback (const std_msgs::BoolConstPtr &contact)
bool getNextTarget (const nav_msgs::Path &path, const tf::Pose &robotPose, const std::vector< geometry_msgs::PoseStamped >::const_iterator &currentPathPoseIt, tf::Stamped< tf::Transform > &targetPose, std::vector< geometry_msgs::PoseStamped >::const_iterator &targetPathPoseIt)
void inhibitJoystick ()
void publishTargetPoseVis (const tf::Stamped< tf::Pose > &targetPose)
 Publishes the target pose as a geometry_msgs/Pose for visualization.
void setVelocity (const tf::Transform &relTarget)
 Velocity controller.
void stopWalk ()
 Stop walk and uninhibit joystick.

Private Attributes

ros::Publisher m_actionGoalPub
ros::Publisher m_actionPathPub
std::string m_baseFrameId
 Base frame of the robot.
double m_controllerFreq
 Desired frequency for controller loop.
bool m_footContact
 True = robot currently has foot contact with the ground.
ros::Subscriber m_footContactSub
ros::ServiceClient m_inhibitWalkClient
bool m_isJoystickInhibited
 True = joystick walk commands are inhibited.
const double m_maxStepFreq
 Maximum step frequency (2.38 Hz according to Nao documentation).
double m_maxVelFractionX
 Maximum fraction of forward velocity for velocity controller, between 0.0 and 1.0.
double m_maxVelFractionY
 Maximum fraction of sideways velocity for velocity controller, between 0.0 and 1.0.
double m_maxVelFractionYaw
 Maximum fraction of rotational velocity for velocity controller, between 0.0 and 1.0.
const double m_maxVelXY
 Maximum translational velocity (0.0952 m/s according to Nao documentation).
const double m_maxVelYaw
 Maximum rotational velocity (47.6 deg/s according to Nao documentation).
const double m_minStepFreq
 Minimum step frequency (1.67 Hz according to Nao documentation).
double m_pathNextTargetDistance
 Cumulative Distance to next Velocity Target from current robot pose along path.
double m_pathStartMaxDistance
 Max distance to start of path from robot pose to accept path (safety)
tf::Transform m_prevRelTarget
 previous rel.target (used to prevent oscillations)
ros::Subscriber m_simpleGoalSub
ros::Subscriber m_simplePathSub
double m_stepFactor
 Fraction of the maximum step frequency.
double m_stepFreq
 Step frequency (should be set to the same value as in nao_walker).
bool m_straight
 True = robot has a straight path in front of it with minimum length m_straightThreshold.
double m_straightMaxPathDev
 Maximum angle deviation of the path off a straight (i.e. a curve in the path) until it is not recognized as such anymore.
double m_straightMaxRobotDev
 Maximum XY deviation of the robot off a straight until it is not recognized as such anymore.
double m_straightMaxRobotYaw
 Maximum angle of the robot off a straight until it is not recognized as such anymore.
double m_straightOffset
 Length of the targetPose offset if a straight is recognized.
double m_straightThreshold
 Minimum length of a straigth that is to be recognized as such.
double m_targetAngThres
 Maximum angular deviation to reach target orientation.
double m_targetDistThres
 Maximum linear deviation to reach target point.
ros::Publisher m_targetPub
tf::TransformListener m_tfListener
double m_thresholdDampXY
 Slow down when distance to goal is smaller than this value [in meters].
double m_thresholdDampYaw
 Slow down rotation when angular deviation from goal pose is smaller than this value [in radians].
double m_thresholdFar
double m_thresholdRotate
ros::ServiceClient m_uninhibitWalkClient
bool m_useFootContactProtection
 True = abort walk when robot is lifted off the ground.
bool m_useVelocityController
 True = use simple velocity controller, false = use Aldebaran's walkTo controller.
geometry_msgs::Twist m_velocity
 last published velocity (used to prevent oscillations)
ros::Publisher m_velPub
ros::Publisher m_visPub
actionlib::SimpleActionServer
< move_base_msgs::MoveBaseAction > 
m_walkGoalServer
actionlib::SimpleActionServer
< naoqi_bridge_msgs::FollowPathAction > 
m_walkPathServer
double m_waypointAngThres
 Maximum angular deviation to switch to next waypoint on path.
double m_waypointDistThres
 Maximum linear deviation to switch to next waypoint on path.
ros::NodeHandle nh
ros::NodeHandle privateNh

Detailed Description

Definition at line 48 of file nao_path_follower.cpp.


Constructor & Destructor Documentation

Definition at line 116 of file nao_path_follower.cpp.

Definition at line 193 of file nao_path_follower.cpp.


Member Function Documentation

void PathFollower::footContactCallback ( const std_msgs::BoolConstPtr &  contact) [private]

Definition at line 228 of file nao_path_follower.cpp.

bool PathFollower::getNextTarget ( const nav_msgs::Path &  path,
const tf::Pose robotPose,
const std::vector< geometry_msgs::PoseStamped >::const_iterator &  currentPathPoseIt,
tf::Stamped< tf::Transform > &  targetPose,
std::vector< geometry_msgs::PoseStamped >::const_iterator &  targetPathPoseIt 
) [private]

Definition at line 345 of file nao_path_follower.cpp.

bool PathFollower::getRobotPose ( tf::StampedTransform globalToBase,
const std::string &  global_frame_id 
)

Definition at line 257 of file nao_path_follower.cpp.

void PathFollower::goalActionCB ( const move_base_msgs::MoveBaseGoalConstPtr &  goal)

Definition at line 687 of file nao_path_follower.cpp.

void PathFollower::goalCB ( const geometry_msgs::PoseStampedConstPtr &  goal)

Definition at line 211 of file nao_path_follower.cpp.

void PathFollower::inhibitJoystick ( ) [private]

Definition at line 232 of file nao_path_follower.cpp.

void PathFollower::pathActionCB ( const naoqi_bridge_msgs::FollowPathGoalConstPtr &  goal)

Definition at line 469 of file nao_path_follower.cpp.

void PathFollower::pathCB ( const nav_msgs::PathConstPtr &  goal)

Definition at line 219 of file nao_path_follower.cpp.

void PathFollower::publishTargetPoseVis ( const tf::Stamped< tf::Pose > &  targetPose) [private]

Publishes the target pose as a geometry_msgs/Pose for visualization.

Parameters:
targetPoseTarget pose to publish.

Definition at line 205 of file nao_path_follower.cpp.

void PathFollower::setVelocity ( const tf::Transform relTarget) [private]

Velocity controller.

Parameters:
relTargetTarget pose relative to the current robot pose.

Strategy:

distance            | angle               | strategy
-----------------------------------------------------------------
> m_thresholdFar    | > m_thresholdRotate | rotate on the spot towards the target
> m_thresholdFar    | < m_thresholdRotate | walk towards the target, orient towards the target
> m_targetDistThres |                     | walk towards the target, orient towards final yaw angle
< m_targetDistThres | > m_targetAngThres  | rotate on the spot towards final yaw angle
< m_targetDistThres | < m_targetAngThres  | stop

Definition at line 846 of file nao_path_follower.cpp.

void PathFollower::stopWalk ( ) [private]

Stop walk and uninhibit joystick.

Definition at line 797 of file nao_path_follower.cpp.


Member Data Documentation

Definition at line 70 of file nao_path_follower.cpp.

Definition at line 70 of file nao_path_follower.cpp.

std::string PathFollower::m_baseFrameId [private]

Base frame of the robot.

Definition at line 80 of file nao_path_follower.cpp.

Desired frequency for controller loop.

Definition at line 81 of file nao_path_follower.cpp.

True = robot currently has foot contact with the ground.

Definition at line 88 of file nao_path_follower.cpp.

Definition at line 75 of file nao_path_follower.cpp.

Definition at line 74 of file nao_path_follower.cpp.

True = joystick walk commands are inhibited.

Definition at line 86 of file nao_path_follower.cpp.

const double PathFollower::m_maxStepFreq [private]

Maximum step frequency (2.38 Hz according to Nao documentation).

Definition at line 100 of file nao_path_follower.cpp.

Maximum fraction of forward velocity for velocity controller, between 0.0 and 1.0.

Definition at line 92 of file nao_path_follower.cpp.

Maximum fraction of sideways velocity for velocity controller, between 0.0 and 1.0.

Definition at line 93 of file nao_path_follower.cpp.

Maximum fraction of rotational velocity for velocity controller, between 0.0 and 1.0.

Definition at line 94 of file nao_path_follower.cpp.

const double PathFollower::m_maxVelXY [private]

Maximum translational velocity (0.0952 m/s according to Nao documentation).

Definition at line 97 of file nao_path_follower.cpp.

const double PathFollower::m_maxVelYaw [private]

Maximum rotational velocity (47.6 deg/s according to Nao documentation).

Definition at line 98 of file nao_path_follower.cpp.

const double PathFollower::m_minStepFreq [private]

Minimum step frequency (1.67 Hz according to Nao documentation).

Definition at line 99 of file nao_path_follower.cpp.

Cumulative Distance to next Velocity Target from current robot pose along path.

Definition at line 106 of file nao_path_follower.cpp.

Max distance to start of path from robot pose to accept path (safety)

Definition at line 107 of file nao_path_follower.cpp.

previous rel.target (used to prevent oscillations)

Definition at line 77 of file nao_path_follower.cpp.

Definition at line 69 of file nao_path_follower.cpp.

Definition at line 69 of file nao_path_follower.cpp.

double PathFollower::m_stepFactor [private]

Fraction of the maximum step frequency.

Definition at line 96 of file nao_path_follower.cpp.

double PathFollower::m_stepFreq [private]

Step frequency (should be set to the same value as in nao_walker).

Definition at line 95 of file nao_path_follower.cpp.

bool PathFollower::m_straight [private]

True = robot has a straight path in front of it with minimum length m_straightThreshold.

Definition at line 113 of file nao_path_follower.cpp.

Maximum angle deviation of the path off a straight (i.e. a curve in the path) until it is not recognized as such anymore.

Definition at line 110 of file nao_path_follower.cpp.

Maximum XY deviation of the robot off a straight until it is not recognized as such anymore.

Definition at line 108 of file nao_path_follower.cpp.

Maximum angle of the robot off a straight until it is not recognized as such anymore.

Definition at line 109 of file nao_path_follower.cpp.

Length of the targetPose offset if a straight is recognized.

Definition at line 112 of file nao_path_follower.cpp.

Minimum length of a straigth that is to be recognized as such.

Definition at line 111 of file nao_path_follower.cpp.

Maximum angular deviation to reach target orientation.

Definition at line 83 of file nao_path_follower.cpp.

Maximum linear deviation to reach target point.

Definition at line 82 of file nao_path_follower.cpp.

Definition at line 70 of file nao_path_follower.cpp.

Definition at line 71 of file nao_path_follower.cpp.

Slow down when distance to goal is smaller than this value [in meters].

Definition at line 103 of file nao_path_follower.cpp.

Slow down rotation when angular deviation from goal pose is smaller than this value [in radians].

Definition at line 104 of file nao_path_follower.cpp.

double PathFollower::m_thresholdFar [private]
See also:
PathFollower::setVelocity()

Definition at line 101 of file nao_path_follower.cpp.

See also:
PathFollower::setVelocity()

Definition at line 102 of file nao_path_follower.cpp.

Definition at line 74 of file nao_path_follower.cpp.

True = abort walk when robot is lifted off the ground.

Definition at line 87 of file nao_path_follower.cpp.

True = use simple velocity controller, false = use Aldebaran's walkTo controller.

Definition at line 91 of file nao_path_follower.cpp.

geometry_msgs::Twist PathFollower::m_velocity [private]

last published velocity (used to prevent oscillations)

Definition at line 78 of file nao_path_follower.cpp.

Definition at line 70 of file nao_path_follower.cpp.

Definition at line 70 of file nao_path_follower.cpp.

actionlib::SimpleActionServer<move_base_msgs::MoveBaseAction> PathFollower::m_walkGoalServer [private]

Definition at line 72 of file nao_path_follower.cpp.

actionlib::SimpleActionServer<naoqi_bridge_msgs::FollowPathAction> PathFollower::m_walkPathServer [private]

Definition at line 73 of file nao_path_follower.cpp.

Maximum angular deviation to switch to next waypoint on path.

Definition at line 85 of file nao_path_follower.cpp.

Maximum linear deviation to switch to next waypoint on path.

Definition at line 84 of file nao_path_follower.cpp.

Definition at line 67 of file nao_path_follower.cpp.

Definition at line 68 of file nao_path_follower.cpp.


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


nao_path_follower
Author(s): Armin Hornung, Stefan Osswald, Daniel Maier
autogenerated on Fri Aug 28 2015 11:39:19