def unit_test(listener, br): # Initialize isExecute = True rospy.sleep(0.5) viz_pub = rospy.Publisher('/proposal_visualization_marker_array', MarkerArray, queue_size=10) # data = posesrv('','') #~ goToHome.prepGripperPicking() #~define objId TARGET = 'expo_eraser' #~define obj poses objInput = [] objInput.append(ik.helper.get_params_yaml('bin0_pose')) objInput.append(ik.helper.get_params_yaml('bin1_pose')) objInput.append(ik.helper.get_params_yaml('bin2_pose')) # #~unit test for flags 1 and 2 in bins 0 and 1 (with weight guard) flag_list = [0, 1, 2] bin_list = [0, 1, 2] # objInput = [[1.0550236701965332, -0.40252241492271423, -0.018005974590778351, 0.0, 0.0, -1.0, 0.15000000596046448, 0.10999999940395355, -0.38268342614173889, -0.92387950420379639, 0.0, 0.22444444894790649]] # binId = 0 # flag = 0 # bin_drop_id = binId # (output_dict)=grasp(objInput=objInput[binId], # listener=listener, # br=br, # isExecute=isExecute, # objId=TARGET, # binId=bin_drop_id, # flag=flag, # withPause = False) # ~ bin_list = [0] for binId in bin_list: for flag in flag_list: bin_list_drop = [binId] (output_dict) = grasp(objInput=objInput[binId], listener=listener, br=br, isExecute=isExecute, objId=TARGET, binId=binId, flag=flag, withPause=False, viz_pub=viz_pub) gripper.close()
def callback(data): s = str(data) print(s) data = re.split('data: "| "| |"', s) print(len(data)) print(data) if len(data) == 3: if data[1] == 'o': gripper.open() elif data[1] == 'c': gripper.close() else: gripper.stop() elif len(data) == 8: for i in range(1, 7): query[i] = float(data[i]) dequeue()
def try_suction(target_x, target_y, plans, qf, num_iter): (continue_val, h1, h2, sidepos) = get_motion_param(target_x, target_y) if continue_val == False: return False, False final_hand_gap = max_gripper_width targetPositionList = [[target_x, sidepos, h1], [target_x, sidepos, h2]] (continue_val, plans, throwaway) = generate_plan(targetPositionList, plans, qf) if continue_val == False: return False, False #set robot speed setSpeedByName(speedName='faster') hand_gap = 0 gripper.close() execute_forward(plans, hand_gap) #suction.start() gripper.set_force(10) gripper.grasp(move_pos=max_gripper_width) gripper.close() hand_gap = max_gripper_width print '[SucDown] hand_gap:', hand_gap execute_backward(plans, hand_gap, 0) #time.sleep(4) my_return = suction.check() or suction_override(objId) if my_return == True: #set robot speed setSpeedByName(speedName='fast') return (True, True) else: #suction.stop() return (True, False)
def run_grasping(self, container=None): self.getBestGraspingPoint(container) #~Publish grasp proposal information grasp_proposal_msgs = Float32MultiArray() grasp_proposal_msgs.data = self.grasp_point if self.grasp_point is not None: self.grasp_proposal_pub.publish(grasp_proposal_msgs) comments_msgs = String() comments_msgs.data = self.experiment_description experiment_type_msgs = String() experiment_type_msgs.data = self.experiment_type self.experiment_comments_pub.publish(comments_msgs) self.experiment_type_pub.publish(experiment_type_msgs) else: print('There are no grasp proposal') self.execution_possible = False return #~Visualize grasp proposals markers_msg = MarkerArray() m0 = createDeleteAllMarker('pick_proposals') markers_msg.markers.append(m0) for i in range(10): self.proposal_viz_array_pub.publish(markers_msg) ik.visualize_helper.visualize_grasping_proposals( self.proposal_viz_array_pub, self.all_grasp_proposals, self.listener, self.br) ik.visualize_helper.visualize_grasping_proposals( self.proposal_viz_array_pub, np.asarray([self.grasp_point]), self.listener, self.br, True) #execute for grasp. Stop when the gripper is closed self.back_img_list = self.capture_images() #self.grasp_point=[0.92737001180648804, -0.391, -0.12441360205411911, 0.0, 0.0, -1.0, 0.067681394517421722, 0.059999998658895493, 0.0, 1.0, 0.0, 0.74888890981674194] self.grasping_output = grasp(objInput=self.grasp_point, listener=self.listener, br=self.br, isExecute=self.isExecute, binId=container, withPause=self.withPause, viz_pub=self.proposal_viz_array_pub, recorder=self.gdr) num_it = 0 print('gripper open: ', gripper.getGripperopening()) is_in_wrong_pose = (gripper.getGripperopening() < 0.04) while is_in_wrong_pose: ''' self.retrieve_output = retrieve(listener=self.listener, br=self.br, isExecute=self.isExecute, binId=container, withPause=self.withPause, viz_pub=self.proposal_viz_array_pub, recorder=self.gdr, ws_object=self.weightSensor, isShake=False) self.grasping_output = grasp(objInput=self.grasp_point, listener=self.listener, br=self.br, isExecute=self.isExecute, binId=container, withPause=self.withPause, viz_pub=self.proposal_viz_array_pub, recorder=self.gdr, open_hand=False) ''' # Motion heuristic initial_dz = 0.05 dz = .022 #should be related to object length ik.helper.move_cart(dz=initial_dz) rospy.sleep(0.5) ik.helper.move_cart(dz=-initial_dz) rospy.sleep(0.5) gripper.move(90) ik.helper.move_cart(dz=dz) rospy.sleep(0.5) #should be done in the direction of the gripper plane dx = 0.038 #.02*num_it ik.helper.move_cart_hand(self.listener, dx=dx, dy=0, dz=0, speedName='fastest') rospy.sleep(0.5) ik.helper.move_cart(dz=-dz) rospy.sleep(0.5) ik.helper.move_cart_hand(self.listener, dx=-dx, dy=0, dz=0, speedName='fastest') rospy.sleep(0.5) gripper.close() rospy.sleep(0.5) print('gripper_open', gripper.getGripperopening()) is_in_wrong_pose = (gripper.getGripperopening() < 0.04) if is_in_wrong_pose: gripper.move(90) rospy.sleep(0.5) ik.helper.move_cart(dz=dz) rospy.sleep(0.5) ik.helper.move_cart_hand(self.listener, dx=-dx, dy=0, dz=0, speedName='fastest') rospy.sleep(0.5) ik.helper.move_cart(dz=-dz) rospy.sleep(0.5) ik.helper.move_cart_hand(self.listener, dx=dx, dy=0, dz=0, speedName='fastest') rospy.sleep(0.5) gripper.close() rospy.sleep(0.5) self.gdr.save_data_recorded = False num_it += 1 is_in_wrong_pose = ( gripper.getGripperopening() < 0.04 ) #and (gripper.getGripperopening() > 0.015) self.retrieve_output = retrieve(listener=self.listener, br=self.br, isExecute=self.isExecute, binId=container, withPause=self.withPause, viz_pub=self.proposal_viz_array_pub, recorder=self.gdr, ws_object=self.weightSensor, isShake=False) self.execution_possible = self.retrieve_output['execution_possible']
def closeGripper(forceThreshold): # call gripper node, close gripper.close() return 1
def flush_grasp(objPose = [1.95,1.25,1.4,0,0,0,1], binNum=4, objId = 0, bin_contents = None, robotConfig = None, forceThreshold = 1, isExecute = True, withPause = False): ## objPose: world position and orientation frame attached to com of object in quaternion form. XYZ ## objId: object identifier ## robotConfig: current time robot configuration ## shelfPosition: shelf position in world frame ## force threshold: amount fo force needed to say we have a grasp joint_topic = '/joint_states' ## initialize listener rospy listener = tf.TransformListener() br = tf.TransformBroadcaster() rospy.sleep(0.1) # shelf variables pretensionDelta = 0.00 lipHeight = 0.035 #tcp_offset_variables #set robot speed setSpeedByName(speedName = 'fast') # plan store plans = [] ## get object position (world frame) objPosition = getObjCOM(objPose[0:3], objId) obj_pose_tfm_list=matrix_from_xyzquat(objPose[0:3], objPose[3:7]) obj_pose_tfm=np.array(obj_pose_tfm_list) obj_pose_orient=obj_pose_tfm[0:3,0:3] vertical_index=np.argmax(np.fabs(obj_pose_orient[2,0:3])) object_dim=get_obj_dim(objId) vertical_dim=object_dim[vertical_index] s1=np.fabs(obj_pose_orient[1,0])*object_dim[0] s2=np.fabs(obj_pose_orient[1,1])*object_dim[1] s3=np.fabs(obj_pose_orient[1,2])*object_dim[2] s4=np.fabs(obj_pose_orient[1,vertical_index])*object_dim[vertical_index] horizontal_dim=s1+s2+s3-s4 hand_gap=0 gripper.close() while True: APCrobotjoints = ROS_Wait_For_Msg(joint_topic, sensor_msgs.msg.JointState).getmsg() q0 = APCrobotjoints.position if len(q0) < 6: continue else: break ## move gripper to object com outside bin along world y direction and ## move the gripper over the lip of the bin # set tcp vert_offset=.035 l2 = 0.43 #change this to edit where you think the cup is l2 =.44 tip_hand_transform = [-vert_offset, 0, l2, 0,0,0] # to be updated when we have a hand design finalized # broadcast frame attached to tcp # for i in range(5): # rospy.sleep(0.1) # br.sendTransform(tuple(tip_hand_transform[0:3]), tfm.quaternion_from_euler(*tip_hand_transform[3:6]), rospy.Time.now(), 'tip', "link_6") # rospy.sleep(0.1) pubFrame(br, pose=tip_hand_transform, frame_id='tip', parent_frame_id='link_6', npub=5) # get position of the tcp in world frame pose_world = coordinateFrameTransform(tip_hand_transform[0:3], 'link_6', 'map', listener) tcpPos=[pose_world.pose.position.x, pose_world.pose.position.y, pose_world.pose.position.z] #this may cause issues!!! tcpPosHome = tcpPos # set scoop orientation (rotate wrist) distFromShelf = 0.05 wristWidth = 0.0725 # this is actually half the wrist width (binMouth,bin_height,bin_width) = getBinMouth(distFromShelf, binNum) pose_world = coordinateFrameTransform(binMouth[0:3], 'shelf', 'map', listener) binMouth=[pose_world.pose.position.x, pose_world.pose.position.y, pose_world.pose.position.z] object_depth=objPosition[0]-binMouth[0] finger_length=.23 finger_width=.06 up_offset=.05 down_offset=0.005 cup_to_spatula=.08 hand_width=.15 max_gripper_width=.110 hand_top_offset=hand_width/2+vert_offset+.03 hand_bot_offset=hand_width/2-vert_offset+.015 side_offset=.03 binFloorHeight=binMouth[2]-bin_height/2 binCeilHeight=binMouth[2]+bin_height/2 min_height=binFloorHeight+lipHeight+finger_width/2+down_offset desired_height=objPosition[2] max_height=binCeilHeight-lipHeight-finger_width/2-down_offset target_height=desired_height if target_height<min_height: target_height=min_height if target_height>max_height: target_height=max_height bin_sideways=binMouth[1] sidepos=objPosition[1] horz_offset=0.015 #this determines bin sides based on bin input binSmall=binMouth[1]-bin_width/2 binLarge=binMouth[1]+bin_width/2 #this determines bin sides based on object #(binSmall,binLarge)=getSides(objPosition[1],listener) binRight=binSmall binLeft=binLarge final_hand_gap=110 if sidepos>bin_sideways: #this stuff is what happens if the object is to the left print 'Object is to the left' if binNum==0 or binNum==3 or binNum==6 or binNum==9: print 'Object is in that weird rail corner' return False #turn the suction cup so that it is sideways left #scoopOrientation = [.5,-.5,.5,-.5] scoopOrientation = [0.5,.5,.5,.5] #side_waypoint1=binRight+cup_to_spatula+.01 #side_waypoint2=sidepos+horizontal_dim-side_offset #side_waypoint2=binLeft-horizontal_dim-horz_offset side_waypoint1=binLeft-hand_top_offset+horz_offset if sidepos-horizontal_dim<binLeft-final_hand_gap: print 'this is not a flush object' return False else: #this stuff is what happens if the object is to the right print 'Object is to the right' if binNum==2 or binNum==5 or binNum==8 or binNum==11: print 'Object is in that weird rail corner' return False #turn the suction cup so that it is sideways right #scoopOrientation = [0.5,.5,.5,.5] scoopOrientation = [.5,-.5,.5,-.5] #side_waypoint1=binLeft-cup_to_spatula-.01 #side_waypoint2=sidepos-horizontal_dim+side_offset #side_waypoint2=binRight+horizontal_dim+horz_offset side_waypoint1=binRight+hand_top_offset-horz_offset if sidepos+horizontal_dim>binRight+final_hand_gap: print 'this is not a flush object' return False targetPositionList=[ [binMouth[0]-.15, side_waypoint1, min_height], [binMouth[0]+.04, side_waypoint1, min_height], [binMouth[0]+.3, side_waypoint1, min_height], [binMouth[0]+.3, side_waypoint1, min_height+.03], [binMouth[0]-.1, side_waypoint1, min_height+.03]] qf=q0 for tp_index in range(0, len(targetPositionList)): targetPosition = targetPositionList[tp_index] frontOfObjectPtOutOfBin = targetPosition q_initial = qf planner = IK(q0 = q_initial, target_tip_pos = targetPosition, target_tip_ori = scoopOrientation, tip_hand_transform=tip_hand_transform, joint_topic=joint_topic) plan = planner.plan() s = plan.success() if s: print 'move to COM in y successful' print 'tcp at:' print(targetPosition) #plan.visualize(hand_param=hand_gap) plans.append(plan) #if isExecute: # pauseFunc(withPause) # plan.execute() else: print 'move to COM in y fail' return False #print plan.q_traj qf = plan.q_traj[-1] print qf for numOfPlan in range(0, 2): if isExecute: plans[numOfPlan].visualize(hand_param=final_hand_gap) pauseFunc(withPause) plans[numOfPlan].execute() #time.sleep(2.5) #suction.start() final_hand_gap=110 gripper.set_force(20) gripper.grasp(move_pos=final_hand_gap) for numOfPlan in range(2, 3): if isExecute: plans[numOfPlan].visualize(hand_param=hand_gap) pauseFunc(withPause) plans[numOfPlan].execute() gripper.set_force(50) rospy.sleep(0.1) gripper.move(move_pos=0) hand_gap=final_hand_gap print hand_gap ## retreat #for numOfPlan in range(0, len(plans)-1): # plans[len(plans)-numOfPlan-1].visualizeBackward(hand_param=hand_gap) # if isExecute: # pauseFunc(withPause) # plans[len(plans)-numOfPlan-1].executeBackward() # suction.stop() for numOfPlan in range(3, len(plans)): if isExecute: plans[numOfPlan].visualize(hand_param=hand_gap) pauseFunc(withPause) plans[numOfPlan].execute() return True
def suction_side(objPose = [1.95,1.25,1.4,0,0,0,1], binNum=4, objId = 0, bin_contents = None, robotConfig = None, shelfPosition = [1.9019,0.00030975,-0.503], forceThreshold = 1, isExecute = True, withPause = False): ## objPose: world position and orientation frame attached to com of object in quaternion form. XYZ ## objId: object identifier ## robotConfig: current time robot configuration ## shelfPosition: shelf position in world frame ## force threshold: amount fo force needed to say we have a grasp joint_topic = '/joint_states' ## initialize listener rospy listener = tf.TransformListener() #rospy.sleep(0.1) br = tf.TransformBroadcaster() rospy.sleep(0.1) # shelf variables pretensionDelta = 0.00 lipHeight = 0.035 #tcp_offset_variables # plan store plans = [] ## get object position (world frame) objPosition = getObjCOM(objPose[0:3], objId) obj_pose_tfm_list=matrix_from_xyzquat(objPose[0:3], objPose[3:7]) obj_pose_tfm=np.array(obj_pose_tfm_list) obj_pose_orient=obj_pose_tfm[0:3,0:3] vertical_index=np.argmax(np.fabs(obj_pose_orient[2,0:3])) object_dim=get_obj_dim(objId) vertical_dim=object_dim[vertical_index] s1=np.fabs(obj_pose_orient[1,0])*object_dim[0] s2=np.fabs(obj_pose_orient[1,1])*object_dim[1] s3=np.fabs(obj_pose_orient[1,2])*object_dim[2] s4=np.fabs(obj_pose_orient[1,vertical_index])*object_dim[vertical_index] horizontal_dim=s1+s2+s3-s4 hand_gap=0 gripper.close() while True: APCrobotjoints = ROS_Wait_For_Msg(joint_topic, sensor_msgs.msg.JointState).getmsg() q0 = APCrobotjoints.position if len(q0) < 6: continue else: break ## move gripper to object com outside bin along world y direction and ## move the gripper over the lip of the bin # set tcp vert_offset=.035 l2 = 0.43 #change this to edit where you think the cup is l2 =.44 tip_hand_transform = [-vert_offset, 0, l2, 0,0,0] # to be updated when we have a hand design finalized # broadcast frame attached to tcp # for i in range(5): # rospy.sleep(0.1) # br.sendTransform(tuple(tip_hand_transform[0:3]), tfm.quaternion_from_euler(*tip_hand_transform[3:6]), rospy.Time.now(), 'tip', "link_6") # rospy.sleep(0.1) pubFrame(br, pose=tip_hand_transform, frame_id='target_pose', parent_frame_id='tip', npub=1) # get position of the tcp in world frame pose_world = coordinateFrameTransform(tip_hand_transform[0:3], 'link_6', 'map', listener) tcpPos=[pose_world.pose.position.x, pose_world.pose.position.y, pose_world.pose.position.z] #this may cause issues!!! tcpPosHome = tcpPos # set scoop orientation (rotate wrist) distFromShelf = 0.05 wristWidth = 0.0725 # this is actually half the wrist width (binMouth,bin_height,bin_width) = getBinMouth(distFromShelf, binNum) pose_world = coordinateFrameTransform(binMouth[0:3], 'shelf', 'map', listener) binMouth=[pose_world.pose.position.x, pose_world.pose.position.y, pose_world.pose.position.z] object_depth=objPosition[0]-binMouth[0] finger_length=.23 finger_width=.08 up_offset=.05 down_offset=.01 cup_to_spatula=.08 hand_width=.15 max_gripper_width=.110 hand_top_offset=hand_width/2+vert_offset+.015 hand_bot_offset=hand_width/2-vert_offset+.015 up_down_adjust=.025 side_offset=.03 binFloorHeight=binMouth[2]-bin_height/2 binCeilHeight=binMouth[2]+bin_height/2 min_height=binFloorHeight+lipHeight+finger_width/2+down_offset desired_height=objPosition[2] max_height=binCeilHeight-lipHeight-finger_width/2-down_offset-up_down_adjust target_height=desired_height if target_height<min_height: target_height=min_height if target_height>max_height: target_height=max_height bin_sideways=binMouth[1] sidepos=objPosition[1] horz_offset=0.01 #this determines bin sides based on object #(binSmall,binLarge)=getSides(objPosition[1],listener) (binSmall,binLarge)=getSides(binNum,listener) binRight=binSmall binLeft=binLarge if sidepos>bin_sideways: #this stuff is what happens if the object is to the left print '[SucSide] Object is to the left' #turn the suction cup so that it is sideways left scoopOrientation = [.5,-.5,.5,-.5] side_waypoint1a=binRight+cup_to_spatula+.01 side_waypoint1b=sidepos-horizontal_dim/2-2*horz_offset if side_waypoint1a>side_waypoint1b: side_waypoint1=side_waypoint1a print '[SucSide] side waypoint A' else: side_waypoint1=side_waypoint1b print '[SucSide] side waypoint B' #side_waypoint2=sidepos+horizontal_dim-side_offset side_waypoint2=binLeft-horizontal_dim-horz_offset if side_waypoint2<side_waypoint1: if side_waypoint2<side_waypoint1a: print '[SucSide] Not enought gap' return (False, False) else: side_waypoint1=side_waypoint2 else: #this stuff is what happens if the object is to the right print '[SucSide] Object is to the right' #turn the suction cup so that it is sideways right scoopOrientation = [0.5,.5,.5,.5] side_waypoint1a=binLeft-cup_to_spatula-.01 side_waypoint1b=sidepos+horizontal_dim/2+2*horz_offset if side_waypoint1a<side_waypoint1b: side_waypoint1=side_waypoint1a print '[SucSide] side waypoint A' else: side_waypoint1=side_waypoint1b print '[SucSide] side waypoint B' #side_waypoint2=sidepos-horizontal_dim+side_offset side_waypoint2=binRight+horizontal_dim+horz_offset if side_waypoint2>side_waypoint1: if side_waypoint2>side_waypoint1a: print '[SucSide] Not enought gap' return (False, False) else: side_waypoint1=side_waypoint2 targetPositionList=[ [binMouth[0]-.15, side_waypoint1, target_height+up_down_adjust], [objPosition[0], side_waypoint1, target_height+up_down_adjust], [objPosition[0], side_waypoint2, target_height+up_down_adjust], [objPosition[0], side_waypoint2, target_height]] qf=q0 for tp_index in range(0, len(targetPositionList)): targetPosition = targetPositionList[tp_index] frontOfObjectPtOutOfBin = targetPosition q_initial = qf planner = IK(q0 = q_initial, target_tip_pos = targetPosition, target_tip_ori = scoopOrientation, tip_hand_transform=tip_hand_transform, joint_topic=joint_topic) plan = planner.plan() s = plan.success() if s: print '[SucSide] move to COM in y successful' print '[SucSide] tcp at:', targetPosition plan.visualize(hand_param=hand_gap) plans.append(plan) #if isExecute: # pauseFunc(withPause) # plan.execute() else: print '[SucSide] move to COM in y fail' return (False, False) #print plan.q_traj qf = plan.q_traj[-1] print '[SucSide] qf:', qf #set robot speed setSpeedByName(speedName = 'faster') for numOfPlan in range(0, len(plans)): if numOfPlan >=len(plans)-2: setSpeedByName(speedName = 'fast') if isExecute: plans[numOfPlan].visualize(hand_param=hand_gap) pauseFunc(withPause) plans[numOfPlan].execute() suction.start() final_hand_gap=110 gripper.set_force(12) gripper.grasp(move_pos=final_hand_gap) gripper.close() hand_gap=final_hand_gap print '[SucSide] hand_gap:', hand_gap continue_suction=suction_items(objId) if continue_suction: print '[SucSide] object is of type that suction side will try to remove from bin' else: print '[SucSide] object is to big to remove from bin' ## retreat for numOfPlan in range(0, len(plans)-1): plans[len(plans)-numOfPlan-1].visualizeBackward(hand_param=hand_gap) if isExecute: pauseFunc(withPause) plans[len(plans)-numOfPlan-1].executeBackward() if not continue_suction: suction.stop() rospy.sleep(3) print '[SucSide] Is suction in contact still? Lets see:' print '[SucSide] suction.check(): ', suction.check() print '[SucSide] suction.check(): ', suction.check() if suction.check(): #set robot speed print '[SucSide] got item. continuing. suction' setSpeedByName(speedName = 'fast') return (True, True) else: print '[SucSide] did not get item. Stopping suction' suction.stop() return (True, False)
def try_suction(target_x,target_y,qf,num_iter): object_depth=target_x-binMouth[0] sidepos=min(max(target_y,small_limit),large_limit) if object_depth<finger_length: print 'shallow suction' h1=binCeilHeight-lipHeight-cup_to_spatula h2=binFloorHeight+vertical_dim-down_offset else: print 'deep suction' h1=binCeilHeight-lipHeight-hand_top_offset h2a=binFloorHeight+vertical_dim-down_offset h2b=binFloorHeight+hand_bot_offset+lipHeight h2=max(h2a,h2b) h2=max(h2,binFloorHeight) if h2>h1: print 'cant go in' return False, False final_hand_gap=max_gripper_width targetPositionList=[ [binMouth[0]-.15, sidepos, h1], [target_x, sidepos, h1], [target_x, sidepos, h2]] for tp_index in range(0, len(targetPositionList)): targetPosition = targetPositionList[tp_index] planner = IK(q0 = qf, target_tip_pos = targetPosition, target_tip_ori = scoopOrientation, tip_hand_transform=tip_hand_transform, joint_topic=joint_topic) plan = planner.plan() s = plan.success() print 'Plan number:',tp_index+1 if s: print 'Plan calculated successfully' plans.append(plan) else: print 'Plan calulation failed' return (False, False) qf = plan.q_traj[-1] #set robot speed setSpeedByName(speedName = 'faster') hand_gap=0 gripper.close() for numOfPlan in range(0, len(plans)): if isExecute: plans[numOfPlan].visualize(hand_param=hand_gap) pauseFunc(withPause) plans[numOfPlan].execute() suction.start() gripper.set_force(10) gripper.grasp(move_pos=max_gripper_width) gripper.close() hand_gap=max_gripper_width print hand_gap ## retreat if num_iter==0: plan_offset=2 else: plan_offset=0 for numOfPlan in range(0, len(plans)-plan_offset): plans[len(plans)-numOfPlan-1].visualizeBackward(hand_param=hand_gap) if isExecute: #backward_plan=plans[len(plans)-numOfPlan-1] #q_first=backward_plan[0] #q_last=backward_plan[len(backward_plan)-1] #if(abs(q_first[5]-q_last[5])>math.pi/2): # print 'something weird is going on with joint 5 rotation' # break pauseFunc(withPause) plans[len(plans)-numOfPlan-1].executeBackward() time.sleep(4) my_return=suction.check() or suction_override(objId) if my_return==True: #set robot speed setSpeedByName(speedName = 'fast') return (True, True) else: suction.stop() return (True, False)
#!/usr/bin/env python import gripper from ik.helper import Timer gripper.homing() gripper.open(speed=50) with Timer('close50'): gripper.close(speed=50) with Timer('open50'): gripper.open(speed=50) with Timer('close100'): gripper.close(speed=100) with Timer('open100'): gripper.open(speed=100) with Timer('close200'): gripper.close(speed=200) with Timer('open200'): gripper.open(speed=200) with Timer('close400'): gripper.close(speed=400) with Timer('open400'): gripper.open(speed=400) #gripper.grasp() #gripper.grasp(move_pos=10, move_speed=50) #gripper.release(speed=50)
def suction_down(objPose=[1.95, 1.25, 1.4, 0, 0, 0, 1], binNum=4, objId=0, bin_contents=None, robotConfig=None, shelfPosition=[1.9019, 0.00030975, -0.503], forceThreshold=1, isExecute=True, withPause=True): ## objPose: world position and orientation frame attached to com of object in quaternion form. XYZ ## objId: object identifier ## robotConfig: current time robot configuration ## shelfPosition: shelf position in world frame ## force threshold: amount fo force needed to say we have a grasp joint_topic = '/joint_states' ## initialize listener rospy listener = tf.TransformListener() rospy.sleep(0.1) br = tf.TransformBroadcaster() rospy.sleep(0.1) # shelf variables pretensionDelta = 0.00 lipHeight = 0.035 ## get object position (world frame) objPosition = getObjCOM(objPose[0:3], objId) obj_pose_tfm_list = matrix_from_xyzquat(objPose[0:3], objPose[3:7]) obj_pose_tfm = np.array(obj_pose_tfm_list) obj_pose_orient = obj_pose_tfm[0:3, 0:3] vertical_index = np.argmax(np.fabs(obj_pose_orient[2, 0:3])) object_dim = get_obj_dim(objId) object_dim = adjust_obj_dim(objId, object_dim) vertical_dim = object_dim[vertical_index] while True: APCrobotjoints = ROS_Wait_For_Msg(joint_topic, sensor_msgs.msg.JointState).getmsg() q0 = APCrobotjoints.position if len(q0) >= 6: q0 = q0[ 0: 6] # take first 6, because in virtual environmet there will be additional 2 hand joint break ## move gripper to object com outside bin along world y direction and ## move the gripper over the lip of the bin # set tcp vert_offset = .035 l2 = .44 tip_hand_transform = [ -vert_offset, 0, l2, 0, 0, 0 ] # to be updated when we have a hand design finalized # broadcast frame attached to tcp pubFrame(br, pose=tip_hand_transform, frame_id='tip', parent_frame_id='link_6', npub=5) # get position of the tcp in world frame pose_world = coordinateFrameTransform(tip_hand_transform[0:3], 'link_6', 'map', listener) tcpPos = [ pose_world.pose.position.x, pose_world.pose.position.y, pose_world.pose.position.z ] #this may cause issues!!! tcpPosHome = tcpPos # set scoop orientation (rotate wrist) scoopOrientation = [0.7071, 0, 0.7071, 0] distFromShelf = 0.05 wristWidth = 0.0725 # this is actually half the wrist width (binMouth, bin_height, bin_width) = getBinMouth(distFromShelf, binNum) pose_world = coordinateFrameTransform(binMouth[0:3], 'shelf', 'map', listener) binMouth = [ pose_world.pose.position.x, pose_world.pose.position.y, pose_world.pose.position.z ] hand_gap = 0 gripper.close() finger_length = .23 finger_width = .08 up_offset = .05 down_offset = -.025 cup_to_spatula = .08 hand_width = .15 max_gripper_width = 110 hand_top_offset = hand_width / 2 + vert_offset + .01 hand_bot_offset = hand_width / 2 - vert_offset #this determines bin stuff based on bin input binFloorHeight = binMouth[2] - bin_height / 2 binCeilHeight = binMouth[2] + bin_height / 2 #this determines bin sides based on object #(binSmall,binLarge)=getSides(objPosition[1],listener) (binSmall, binLarge) = getSides(binNum, listener) horz_offset = 0 small_limit = binSmall + finger_width / 2 + horz_offset large_limit = binLarge - finger_width / 2 - horz_offset plans = [] plan = Plan() if objPosition[1] < 0: link6_angle = (q0[5] - math.pi) possible_start_config = [ 0.007996209289, -0.6193283503, 0.5283758664, -0.1974229539, 0.09102420595, 3.33888627518 - 2 * math.pi ] else: link6_angle = (q0[5] + math.pi) possible_start_config = [ 0.007996209289, -0.6193283503, 0.5283758664, -0.1974229539, 0.09102420595, 3.33888627518 ] #start_config=possible_start_config start_config = [q0[0], q0[1], q0[2], q0[3], q0[4], link6_angle] planner = IKJoint(q0=q0, target_joint_pos=start_config) plan = planner.plan() #plan.q_traj=[q0,start_config] plans.append(plan) qf = plan.q_traj[-1] def get_motion_param(target_x, target_y): object_depth = target_x - binMouth[0] sidepos = min(max(target_y, small_limit), large_limit) if object_depth < finger_length: print '[SucDown] shallow suction' h1 = binCeilHeight - lipHeight - cup_to_spatula h2 = binFloorHeight + vertical_dim - down_offset else: print '[SucDown] deep suction, quitting' h1 = binCeilHeight - lipHeight - hand_top_offset h2a = binFloorHeight + vertical_dim - down_offset h2b = binFloorHeight + hand_bot_offset + lipHeight h2 = max(h2a, h2b) return False, h1, h2, sidepos h2 = max(h2, binFloorHeight) if h2 > h1: print '[SucDown] cant go in' return False, h1, h2, sidepos return True, h1, h2, sidepos def generate_plan(targetPositionList, plans, qf): for tp_index in range(0, len(targetPositionList)): targetPosition = targetPositionList[tp_index] planner = IK(q0=qf, target_tip_pos=targetPosition, target_tip_ori=scoopOrientation, tip_hand_transform=tip_hand_transform, joint_topic=joint_topic) plan = planner.plan() s = plan.success() print '[SucDown] Plan number:', tp_index + 1 if s: print '[SucDown] Plan calculated successfully' plans.append(plan) else: print '[SucDown] Plan calulation failed' return (False, plans, qf) qf = plan.q_traj[-1] return (True, plans, qf) def execute_forward(plans, hand_gap): for numOfPlan in range(0, len(plans)): if isExecute: plans[numOfPlan].visualize(hand_param=hand_gap) pauseFunc(withPause) plans[numOfPlan].execute() def execute_backward(plans, hand_gap, plan_offset): for numOfPlan in range(0, len(plans) - plan_offset): plans[len(plans) - numOfPlan - 1].visualizeBackward(hand_param=hand_gap) if isExecute: pauseFunc(withPause) plans[len(plans) - numOfPlan - 1].executeBackward() def try_suction(target_x, target_y, plans, qf, num_iter): (continue_val, h1, h2, sidepos) = get_motion_param(target_x, target_y) if continue_val == False: return False, False final_hand_gap = max_gripper_width targetPositionList = [[target_x, sidepos, h1], [target_x, sidepos, h2]] (continue_val, plans, throwaway) = generate_plan(targetPositionList, plans, qf) if continue_val == False: return False, False #set robot speed setSpeedByName(speedName='faster') hand_gap = 0 gripper.close() execute_forward(plans, hand_gap) #suction.start() gripper.set_force(10) gripper.grasp(move_pos=max_gripper_width) gripper.close() hand_gap = max_gripper_width print '[SucDown] hand_gap:', hand_gap execute_backward(plans, hand_gap, 0) #time.sleep(4) my_return = suction.check() or suction_override(objId) if my_return == True: #set robot speed setSpeedByName(speedName='fast') return (True, True) else: #suction.stop() return (True, False) target_offset = get_test_offset(objId) target_x_list = [ objPosition[0], objPosition[0] - target_offset, objPosition[0], objPosition[0], objPosition[0] + target_offset ] target_y_list = [ objPosition[1], objPosition[1], objPosition[1] + target_offset, objPosition[1] - target_offset, objPosition[1] ] count = 0 suction_succeed = False overall_plan_succeed = False (continue_val, h1, h2, sidepos) = get_motion_param(target_x=target_x_list[0], target_y=target_y_list[0]) if continue_val == False: return False, False #targetPositionList=[ #[binMouth[0]-.15, sidepos, h1], #[binMouth[0]-.15, sidepos, h1], #[target_x_list[0], sidepos, h1]] targetPositionListA = [[binMouth[0] - .15, sidepos, h1], [binMouth[0] - .15, sidepos, h1]] targetPositionListB = [[target_x_list[0], sidepos, h1]] (continue_val, plans1, qf) = generate_plan(targetPositionListA, plans, qf) if continue_val == False: return False, False (continue_val, plans2, qf) = generate_plan(targetPositionListB, [], qf) if continue_val == False: return False, False setSpeedByName(speedName='yolo') execute_forward(plans1, 0) setSpeedByName(speedName='faster') execute_forward(plans2, 0) suction.start() #time.sleep(6) #plans_store=plans plans = [] for count in range(0, len(target_x_list)): (plan_succeed, suction_succeed) = try_suction(target_x=target_x_list[count], target_y=target_y_list[count], plans=plans, qf=qf, num_iter=count) if suction_succeed: overall_plan_succeed = True break #return (plan_succeed,suction_succeed) if plan_succeed == True: overall_plan_succeed = True while True: APCrobotjoints = ROS_Wait_For_Msg( joint_topic, sensor_msgs.msg.JointState).getmsg() qf = APCrobotjoints.position if len(qf) < 6: continue else: break print '[SucDown] qf:', hand_gap plans = [] count = count + 1 execute_backward(plans2, 0, 0) if not suction_succeed: suction.stop() return (overall_plan_succeed, suction_succeed)
def suction_side(objPose=[1.95, 1.25, 1.4, 0, 0, 0, 1], binNum=4, objId=0, bin_contents=None, robotConfig=None, shelfPosition=[1.9019, 0.00030975, -0.503], forceThreshold=1, isExecute=True, withPause=False): ## objPose: world position and orientation frame attached to com of object in quaternion form. XYZ ## objId: object identifier ## robotConfig: current time robot configuration ## shelfPosition: shelf position in world frame ## force threshold: amount fo force needed to say we have a grasp joint_topic = '/joint_states' ## initialize listener rospy listener = tf.TransformListener() #rospy.sleep(0.1) br = tf.TransformBroadcaster() rospy.sleep(0.1) # shelf variables pretensionDelta = 0.00 lipHeight = 0.035 #tcp_offset_variables # plan store plans = [] ## get object position (world frame) objPosition = getObjCOM(objPose[0:3], objId) obj_pose_tfm_list = matrix_from_xyzquat(objPose[0:3], objPose[3:7]) obj_pose_tfm = np.array(obj_pose_tfm_list) obj_pose_orient = obj_pose_tfm[0:3, 0:3] vertical_index = np.argmax(np.fabs(obj_pose_orient[2, 0:3])) object_dim = get_obj_dim(objId) vertical_dim = object_dim[vertical_index] s1 = np.fabs(obj_pose_orient[1, 0]) * object_dim[0] s2 = np.fabs(obj_pose_orient[1, 1]) * object_dim[1] s3 = np.fabs(obj_pose_orient[1, 2]) * object_dim[2] s4 = np.fabs(obj_pose_orient[1, vertical_index]) * object_dim[vertical_index] horizontal_dim = s1 + s2 + s3 - s4 hand_gap = 0 gripper.close() while True: APCrobotjoints = ROS_Wait_For_Msg(joint_topic, sensor_msgs.msg.JointState).getmsg() q0 = APCrobotjoints.position if len(q0) < 6: continue else: break ## move gripper to object com outside bin along world y direction and ## move the gripper over the lip of the bin # set tcp vert_offset = .035 l2 = 0.43 #change this to edit where you think the cup is l2 = .44 tip_hand_transform = [ -vert_offset, 0, l2, 0, 0, 0 ] # to be updated when we have a hand design finalized # broadcast frame attached to tcp # for i in range(5): # rospy.sleep(0.1) # br.sendTransform(tuple(tip_hand_transform[0:3]), tfm.quaternion_from_euler(*tip_hand_transform[3:6]), rospy.Time.now(), 'tip', "link_6") # rospy.sleep(0.1) pubFrame(br, pose=tip_hand_transform, frame_id='target_pose', parent_frame_id='tip', npub=1) # get position of the tcp in world frame pose_world = coordinateFrameTransform(tip_hand_transform[0:3], 'link_6', 'map', listener) tcpPos = [ pose_world.pose.position.x, pose_world.pose.position.y, pose_world.pose.position.z ] #this may cause issues!!! tcpPosHome = tcpPos # set scoop orientation (rotate wrist) distFromShelf = 0.05 wristWidth = 0.0725 # this is actually half the wrist width (binMouth, bin_height, bin_width) = getBinMouth(distFromShelf, binNum) pose_world = coordinateFrameTransform(binMouth[0:3], 'shelf', 'map', listener) binMouth = [ pose_world.pose.position.x, pose_world.pose.position.y, pose_world.pose.position.z ] object_depth = objPosition[0] - binMouth[0] finger_length = .23 finger_width = .08 up_offset = .05 down_offset = .01 cup_to_spatula = .08 hand_width = .15 max_gripper_width = .110 hand_top_offset = hand_width / 2 + vert_offset + .015 hand_bot_offset = hand_width / 2 - vert_offset + .015 up_down_adjust = .025 side_offset = .03 binFloorHeight = binMouth[2] - bin_height / 2 binCeilHeight = binMouth[2] + bin_height / 2 min_height = binFloorHeight + lipHeight + finger_width / 2 + down_offset desired_height = objPosition[2] max_height = binCeilHeight - lipHeight - finger_width / 2 - down_offset - up_down_adjust target_height = desired_height if target_height < min_height: target_height = min_height if target_height > max_height: target_height = max_height bin_sideways = binMouth[1] sidepos = objPosition[1] horz_offset = 0.01 #this determines bin sides based on object #(binSmall,binLarge)=getSides(objPosition[1],listener) (binSmall, binLarge) = getSides(binNum, listener) binRight = binSmall binLeft = binLarge if sidepos > bin_sideways: #this stuff is what happens if the object is to the left print '[SucSide] Object is to the left' #turn the suction cup so that it is sideways left scoopOrientation = [.5, -.5, .5, -.5] side_waypoint1a = binRight + cup_to_spatula + .01 side_waypoint1b = sidepos - horizontal_dim / 2 - 2 * horz_offset if side_waypoint1a > side_waypoint1b: side_waypoint1 = side_waypoint1a print '[SucSide] side waypoint A' else: side_waypoint1 = side_waypoint1b print '[SucSide] side waypoint B' #side_waypoint2=sidepos+horizontal_dim-side_offset side_waypoint2 = binLeft - horizontal_dim - horz_offset if side_waypoint2 < side_waypoint1: if side_waypoint2 < side_waypoint1a: print '[SucSide] Not enought gap' return (False, False) else: side_waypoint1 = side_waypoint2 else: #this stuff is what happens if the object is to the right print '[SucSide] Object is to the right' #turn the suction cup so that it is sideways right scoopOrientation = [0.5, .5, .5, .5] side_waypoint1a = binLeft - cup_to_spatula - .01 side_waypoint1b = sidepos + horizontal_dim / 2 + 2 * horz_offset if side_waypoint1a < side_waypoint1b: side_waypoint1 = side_waypoint1a print '[SucSide] side waypoint A' else: side_waypoint1 = side_waypoint1b print '[SucSide] side waypoint B' #side_waypoint2=sidepos-horizontal_dim+side_offset side_waypoint2 = binRight + horizontal_dim + horz_offset if side_waypoint2 > side_waypoint1: if side_waypoint2 > side_waypoint1a: print '[SucSide] Not enought gap' return (False, False) else: side_waypoint1 = side_waypoint2 targetPositionList = [ [binMouth[0] - .15, side_waypoint1, target_height + up_down_adjust], [objPosition[0], side_waypoint1, target_height + up_down_adjust], [objPosition[0], side_waypoint2, target_height + up_down_adjust], [objPosition[0], side_waypoint2, target_height] ] qf = q0 for tp_index in range(0, len(targetPositionList)): targetPosition = targetPositionList[tp_index] frontOfObjectPtOutOfBin = targetPosition q_initial = qf planner = IK(q0=q_initial, target_tip_pos=targetPosition, target_tip_ori=scoopOrientation, tip_hand_transform=tip_hand_transform, joint_topic=joint_topic) plan = planner.plan() s = plan.success() if s: print '[SucSide] move to COM in y successful' print '[SucSide] tcp at:', targetPosition plan.visualize(hand_param=hand_gap) plans.append(plan) #if isExecute: # pauseFunc(withPause) # plan.execute() else: print '[SucSide] move to COM in y fail' return (False, False) #print plan.q_traj qf = plan.q_traj[-1] print '[SucSide] qf:', qf #set robot speed setSpeedByName(speedName='faster') for numOfPlan in range(0, len(plans)): if numOfPlan >= len(plans) - 2: setSpeedByName(speedName='fast') if isExecute: plans[numOfPlan].visualize(hand_param=hand_gap) pauseFunc(withPause) plans[numOfPlan].execute() suction.start() final_hand_gap = 110 gripper.set_force(12) gripper.grasp(move_pos=final_hand_gap) gripper.close() hand_gap = final_hand_gap print '[SucSide] hand_gap:', hand_gap continue_suction = suction_items(objId) if continue_suction: print '[SucSide] object is of type that suction side will try to remove from bin' else: print '[SucSide] object is to big to remove from bin' ## retreat for numOfPlan in range(0, len(plans) - 1): plans[len(plans) - numOfPlan - 1].visualizeBackward(hand_param=hand_gap) if isExecute: pauseFunc(withPause) plans[len(plans) - numOfPlan - 1].executeBackward() if not continue_suction: suction.stop() rospy.sleep(3) print '[SucSide] Is suction in contact still? Lets see:' print '[SucSide] suction.check(): ', suction.check() print '[SucSide] suction.check(): ', suction.check() if suction.check(): #set robot speed print '[SucSide] got item. continuing. suction' setSpeedByName(speedName='fast') return (True, True) else: print '[SucSide] did not get item. Stopping suction' suction.stop() return (True, False)
def run_grasping(self, container=None): self.getBestGraspingPoint(container) grasp_proposal_msgs = Float32MultiArray() grasp_proposal_msgs.data = self.grasp_point grasp_noise_msgs = Float32MultiArray() grasp_noise_msgs.data = self.grasp_noise if self.grasp_point is not None: self.grasp_proposal_pub.publish(grasp_proposal_msgs) self.grasp_noise_pub.publish(grasp_noise_msgs) comments_msgs = String() comments_msgs.data = self.experiment_description experiment_type_msgs = String() experiment_type_msgs.data = self.experiment_type self.experiment_comments_pub.publish(comments_msgs) self.experiment_type_pub.publish(experiment_type_msgs) if self.grasp_point is None: print( 'It was suppose to do grasping, but there is no grasp proposal' ) self.execution_possible = False return if self.visionType != 'real': self.callFakeGrasping(prob=0.8, container=container) return #~visualize grasp proposals markers_msg = MarkerArray() m0 = createDeleteAllMarker('pick_proposals') markers_msg.markers.append(m0) for i in range(10): self.proposal_viz_array_pub.publish(markers_msg) ik.visualize_helper.visualize_grasping_proposals( self.proposal_viz_array_pub, self.all_grasp_proposals, self.listener, self.br) ik.visualize_helper.visualize_grasping_proposals( self.proposal_viz_array_pub, np.asarray([self.grasp_point]), self.listener, self.br, True) #execute for grasp. Stop when the gripper is closed if self.is_control: back_img_list = self.controller.capture_images() #self.grasp_point=[0.92737001180648804, -0.391, -0.12441360205411911, 0.0, 0.0, -1.0, 0.067681394517421722, 0.059999998658895493, 0.0, 1.0, 0.0, 0.74888890981674194] self.background_images = self.capture_images() self.grasping_output = grasp(objInput=self.grasp_point, listener=self.listener, br=self.br, isExecute=self.isExecute, binId=container, withPause=self.withPause, viz_pub=self.proposal_viz_array_pub, recorder=self.gdr) if self.is_record == True: self.gdr.save_item(item_name='grasp_noise_std_dev', data=self.grasp_std) self.gdr.save_item(item_name='grasp_noise', data=self.grasp_noise) is_in_wrong_pose = (gripper.getGripperopening() < 0.03) #raw_input() if is_in_wrong_pose: self.retrieve_output = retrieve( listener=self.listener, br=self.br, isExecute=self.isExecute, binId=container, withPause=self.withPause, viz_pub=self.proposal_viz_array_pub, recorder=self.gdr, ws_object=self.weightSensor) gripper.open() gripper.close() self.grasping_output = grasp(objInput=self.grasp_point, listener=self.listener, br=self.br, isExecute=self.isExecute, binId=container, withPause=self.withPause, viz_pub=self.proposal_viz_array_pub, recorder=self.gdr) if self.is_control: if gripper.getGripperopening() > 0.017: print('[Planner]: ', gripper.getGripperopening()) # WE PAUSE THE RECOORDER TO SAVE DATA #self.gdr.pause_recording() #find new and improved grasp points best_grasp_dict, initial_score = self.controller.control_policy( back_img_list, smirror=self.smirror, use_COM=self.use_COM, use_raw=self.use_raw) # self.controller.visualize_actions(with_CAM = False) #self.controller.visualize_best_action(with_CAM = False) #pdb.set_trace() #save network information action_dict and best_action_dict #WE UNPAUSE THE RECORDER #self.gdr.replay_recording() self.gdr.save_item(item_name='initial_score', data=initial_score) self.gdr.save_item(item_name='best_grasp_dict', data=best_grasp_dict) self.gdr.save_item(item_name='action_dict', data=self.controller.action_dict) self.gdr.save_item(item_name='best_action_dict', data=self.controller.best_action_dict) #go for new grasp PointgraspPose self.grasping_output = grasp_correction( self.grasp_point, best_grasp_dict['delta_pos'], self.listener, self.br) second_best_grasp_dict, final_score = self.controller.control_policy( back_img_list, smirror=self.smirror, use_COM=self.use_COM, use_raw=self.use_raw) self.gdr.save_item(item_name='final_score', data=final_score) self.gdr.save_item(item_name='second_best_grasp_dict', data=second_best_grasp_dict) self.gdr.save_data_recorded = True else: self.gdr.save_data_recorded = False #frank hack for double grasping if self.experiment_type == 'is_data_collection': if gripper.getGripperopening() > 0.017: # self.grasping_output = grasp_correction(self.grasp_point, np.array([0,0,0]), self.listener, self.br) self.gdr.save_data_recorded = True else: self.gdr.save_data_recorded = False self.retrieve_output = retrieve(listener=self.listener, br=self.br, isExecute=self.isExecute, binId=container, withPause=self.withPause, viz_pub=self.proposal_viz_array_pub, recorder=self.gdr, ws_object=self.weightSensor) self.execution_possible = self.retrieve_output['execution_possible']