123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846847848849850851852853854855856857858859860861862863864865866867868869870871872873874875876877878879880881882883884 |
- #!/usr/bin/env python3
- # -*- coding: utf-8 -*-
- # 导入基本ros和moveit库
- from logging.handlers import RotatingFileHandler
- import os
- import rospy, sys
- import moveit_commander
- import moveit_msgs
- from moveit_commander import MoveGroupCommander, PlanningSceneInterface, RobotCommander
- from moveit_msgs.msg import PlanningScene, ObjectColor,CollisionObject, AttachedCollisionObject,RobotTrajectory
- from moveit_msgs.msg import RobotState
- from moveit_msgs.msg import Constraints, PositionConstraint, OrientationConstraint
- from shape_msgs.msg import SolidPrimitive
- from sensor_msgs.msg import JointState
- import tf.transformations
- from trajectory_msgs.msg import JointTrajectory,JointTrajectoryPoint
- from geometry_msgs.msg import PoseStamped, Pose,Point,Vector3
- from copy import deepcopy
- import numpy as np
- import tf
- from tf.transformations import euler_from_quaternion,quaternion_from_euler,quaternion_from_euler, quaternion_multiply
- import math
- import traceback
- import check
- from lstrobot_planning.msg import JointTrajectoryPoint_ex,JointTrajectory_ex
- pi = np.pi
- class MoveIt_Control:
- # 初始化程序
- def __init__(self, is_use_gripper=False):
- self.home_pose=[]
- # Init ros config
- moveit_commander.roscpp_initialize(sys.argv)
- # 初始化ROS节点
- rospy.init_node('moveit_control_server', anonymous=False)
- self.arm = moveit_commander.MoveGroupCommander('manipulator')
- self.arm.set_goal_joint_tolerance(0.0001)
- self.arm.set_goal_position_tolerance(0.0005)
- self.arm.set_goal_orientation_tolerance(0.1)
- self.end_effector_link = self.arm.get_end_effector_link()
- # 设置机械臂基座的参考系
- self.reference_frame = 'base_link'
- self.arm.set_pose_reference_frame(self.reference_frame)
- # # 设置最大规划时间和是否允许重新规划
- self.arm.set_planning_time(10)
- self.arm.allow_replanning(True)
- planner_id = rospy.get_param("planner_id")
- # self.arm.set_planner_id(planner_id)
- # self.arm.set_planner_id("RRTstar")
- # self.arm.set_planner_id("SBL")
- # self.arm.set_planner_id("BKPIECE")#速度快,比较稳定
- # self.arm.set_planner_id("BiEST")#还不错
-
- # 设置允许的最大速度和加速度(范围:0~1)
- robot_params = {
- 'velocity_limits': True,
- 'joint_max_velocity': [3.541, 3.541, 3.733, 6.838, 4.815, 23.655],
- 'acceleration_limits': False,
- 'joint_max_acceleration': [0, 0, 0, 0, 0, 0]
- }
- self.arm.set_max_acceleration_scaling_factor(1)
- self.arm.set_max_velocity_scaling_factor(1)
- # 机械臂初始姿态
- self.go_home()
- home_pose=self.get_now_pose()
-
- def get_now_pose(self):
- # 获取机械臂当前位姿
- current_pose = self.arm.get_current_pose(self.end_effector_link).pose
- pose=[]
- pose.append(current_pose.position.x)
- pose.append(current_pose.position.y)
- pose.append(current_pose.position.z)
- pose.append(current_pose.orientation.x)
- pose.append(current_pose.orientation.y)
- pose.append(current_pose.orientation.z)
- pose.append(current_pose.orientation.w)
- # 打印位姿信息
- #rospy.lohome_poseinfo("Current Pose: {}".format(pose))
- return pose
-
- def close(self):
- moveit_commander.roscpp_shutdown()
- moveit_commander.os._exit(0)
- def create_path_constraints2(self,start_point,end_point,r):#创建路径约束
- #计算起点指向终点的向量
- vector = np.array([end_point[0]- start_point[0], end_point[1]- start_point[1], end_point[2]- start_point[2]])
- height = np.linalg.norm(vector)+0.006 #计算向量或矩阵的范数 用于度量向量或矩阵的大小或长度
- radius = r
-
- # 位置约束
- position_constraint = PositionConstraint()#创建点位约束
- position_constraint.header.frame_id = "base_link"#此约束所指的机器人链接
- position_constraint.link_name = self.end_effector_link
- position_constraint.target_point_offset = Vector3(0, 0, 0)#目标点的偏移量
- position_constraint.weight = 1.0#质量 OR 加权因子?
- #构建 shape_msgs/SolidPrimitive 消息
- bounding_volume = SolidPrimitive()
- bounding_volume.type = SolidPrimitive.CYLINDER#圆柱
- # bounding_volume.dimensions = [0.003,1]
- bounding_volume.dimensions = [height,radius]#尺寸 高度 半径
- position_constraint.constraint_region.primitives.append(bounding_volume)
- #构建 geometry_msgs/Pose 消息,用于指定圆柱体在空间中的位置和姿态
- pose = Pose()
- pose.position.x = start_point[0] + vector[0] / 2#定义位置(找了个几何中心)
- pose.position.y = start_point[1] + vector[1] / 2
- pose.position.z = start_point[2] + vector[2] / 2
- # 计算圆柱体的姿态
- z_axis = np.array([0, 0, 1])
- axis = np.cross(z_axis, vector) #计算两个向量(向量数组)的叉乘 叉乘返回的数组既垂直于a,又垂直于b
- angle = np.arccos(np.dot(z_axis, vector) / np.linalg.norm(vector))#反余弦求角度
- q = tf.transformations.quaternion_about_axis(angle, axis)#通过旋转轴和旋转角返回四元数
- pose.orientation.x = q[0]
- pose.orientation.y = q[1]
- pose.orientation.z = q[2]
- pose.orientation.w = q[3]
- position_constraint.constraint_region.primitive_poses.append(pose)
- constraints = Constraints()#创建一个新的约束信息
- constraints.position_constraints.append(position_constraint)
- # constraints.orientation_constraints.append(orientation_constraint)
- return constraints
-
- def move_p_flexible(self,point,points,trajectory,trajectory_with_type,a=1,v=1):
- self.arm.set_max_acceleration_scaling_factor(a)
- self.arm.set_max_velocity_scaling_factor(v)
- rrr=0.05#初始允许半径
-
- if trajectory:
- #起点位置设置为规划组最后一个点
- state = self.arm.get_current_state()
- state.joint_state.position = trajectory[-1].joint_trajectory.points[-1].positions
- # 创建路径约束
- path_constraints = self.create_path_constraints2(points[-1],point,rrr)#将最后一个点和输入的点(焊缝的起始点)做圆柱轨迹约束
- self.arm.set_path_constraints(path_constraints)#设定约束
-
- else:
- #起点位置设定为当前状态 按理来说是home点
- self.go_home()
- self.home_pose=self.get_now_pose()
- #rospy.loginfo(self.home_pose)
- state = self.arm.get_current_state()
- # 创建路径约束
- path_constraints = self.create_path_constraints2(self.home_pose,point,rrr)#将当前的点和输入的点(焊缝的起始点)做圆柱轨迹约束
- self.arm.set_path_constraints(path_constraints)#设定约束
- self.arm.set_pose_target(point, self.end_effector_link)#设定目标点为传入的点
- self.arm.set_start_state(state)#起点位置设置为规划组最后一个点 或者当前状态(第一个点时)
-
-
- #当前起点规划次数
- #尝试规划次数
- b = 16 #尝试规划10次
- for i in range(b):
- traj = self.arm.plan()#调用plan进行规划
- trajj = traj[1] #取出规划的信息
- error,Limit_margin = check.check_joint_positions(trajj)#检查关节状态 就是检测规划的轨迹有没有“摇花手”
-
- if not error:#如果没有摇花手 接受规划
- rospy.loginfo("本次移动 OK")
- break
- else:
- rospy.loginfo("移动规划失败-开始第{}次重新规划".format(i+1))
- if i%2==0 and i!=0:#10次了都没成功 重新修改约束
- self.arm.clear_path_constraints()
- rrr=rrr+0.1#每次增加10厘米
- path_constraints = self.create_path_constraints2(self.home_pose,point,rrr)#将最后一个点和输入的点(焊缝的起始点)做圆柱轨迹约束
- self.arm.set_path_constraints(path_constraints)#设定约束
- #规划失败
- if error:
- rospy.loginfo("{}次移动规划失败,进程终止".format(b))
- sys.exit()
- #清除约束
- self.arm.clear_path_constraints()
-
- trajj_with_type = mark_the_traj(trajj,"during-l",welding_sequence)
- trajj_with_type.points[-len(trajj.joint_trajectory.points)].type = "start"
- trajj_with_type.points[-1].type = "end"
- trajectory_with_type.append(trajj_with_type)
- points.append(point)
- trajectory.append(trajj)
- return points,trajectory,trajectory_with_type
-
- # 测试程序用
- def testRobot(self):
- try:
- rospy.loginfo("Test for robot...")
-
- file_path_result = os.path.join(folder_path, 'result.txt')
- all_data = process_welding_data(file_path_result)
- points,trajectory,trajectory_with_type = [],[],[]
- for i in range(len(all_data)):
- rospy.loginfo("共读取到%d条焊缝,开始规划第%d条",len(all_data),i+1)
- start_point = all_data[i][0]
- end_point = all_data[i][1]
- q1 = all_data[i][2]
- q2 = all_data[i][3]
- point11 = [start_point[0]/1000, start_point[1]/1000, start_point[2]/1000, q1[0],q1[1],q1[2],q1[3]]
- self.move_p(point11)
- point22 = [end_point[0]/1000, end_point[1]/1000, end_point[2]/1000, q2[0],q2[1],q2[2],q2[3]]
- self.move_p(point22)
- rospy.loginfo("第%d条焊缝规划完毕",i+1)
- # joint_position = [x * math.pi / 180 for x in [11.016, 3.716, -19.553, -5.375, -32.4173, 109.158]]
- # self.move_j(joint_position)
- # self.show_current_pose()
-
- print("Test OK")
- rospy.sleep(1)
-
- except Exception as e:
- print("Test fail! Exception:", str(e))
- traceback.print_exc()
- # except:
- # print("Test fail! ")
- def show_current_pose(self):
- # 获取机械臂当前位姿
- current_pose = self.arm.get_current_pose(self.end_effector_link).pose
- pose=[]
- pose.append(current_pose.position.x)
- pose.append(current_pose.position.y)
- pose.append(current_pose.position.z)
- pose.append(current_pose.orientation.x)
- pose.append(current_pose.orientation.y)
- pose.append(current_pose.orientation.z)
- # 打印位姿信息
- rospy.loginfo("Current Pose: {}".format(pose))
- def set_scene(self):
- rospy.loginfo("set scene")
- ## set table
- self.scene = PlanningSceneInterface()
- self.scene_pub = rospy.Publisher('planning_scene', PlanningScene, queue_size=5)
- self.colors = dict()
- # rospy.sleep(1)
- table_id = 'table'
- self.scene.remove_world_object(table_id)
- rospy.sleep(1)
- table_size = [2, 2, 0.01]
- table_pose = PoseStamped()
- table_pose.header.frame_id = self.reference_frame
- table_pose.pose.position.x = 0.0
- table_pose.pose.position.y = 0.0
- table_pose.pose.position.z = -table_size[2]/2
- table_pose.pose.orientation.w = 1.0
- box2_id = 'box2'
- self.scene.remove_world_object(box2_id)
- rospy.sleep(1)
- box2_size = [0.01, 0.6, 0.4]
- box2_pose = PoseStamped()
- box2_pose.header.frame_id = self.reference_frame
- box2_pose.pose.position.x = 1.15194-box2_size[0]/2-0.005
- box2_pose.pose.position.y = -0.707656
- box2_pose.pose.position.z = 0.4869005
- box2_pose.pose.orientation.w = 1.0
- box3_id = 'box3'
- self.scene.remove_world_object(box3_id)
- rospy.sleep(1)
- box3_size = [0.2, 0.01, 0.4]
- box3_pose = PoseStamped()
- box3_pose.header.frame_id = self.reference_frame
- box3_pose.pose.position.x = 1.15194+box3_size[0]/2
- box3_pose.pose.position.y = -0.707656-box3_size[1]/2-0.005
- box3_pose.pose.position.z = 0.4869005
- box3_pose.pose.orientation.w = 1.0
- # self.scene.add_box(table_id, table_pose, table_size)
- # self.scene.add_box(box2_id, box2_pose, box2_size)
- # self.scene.add_box(box3_id, box3_pose, box3_size)
- self.setColor(table_id, 0.5, 0.5, 0.5, 1.0)
- self.sendColors()
- rospy.loginfo("set scene end")
- def plan_cartesian_path(self,waypoints):
- fraction = 0.0 # 路径规划覆盖率
- maxtries = 100 # 最大尝试规划次数
- attempts = 0 # 已经尝试规划次数
- # 尝试规划一条笛卡尔空间下的路径,依次通过所有路点
- while fraction < 1.0 and attempts < maxtries:
- (plan, fraction) = self.arm.compute_cartesian_path(
- waypoints, # waypoint poses,路点列表
- 0.001, # eef_step,终端步进值
- 0.0, # jump_threshold,跳跃阈值
- True) # avoid_collisions,避障规划
- attempts += 1
- if fraction == 1.0:
- rospy.loginfo("Path computed successfully.")
- traj = plan
- else:
- rospy.loginfo(
- "Path planning failed with only " + str(fraction) +
- " success after " + str(maxtries) + " attempts.")
- return fraction,plan
-
- # 关节规划,输入6个关节角度(单位:弧度)
- def move_j(self, joint_configuration=None,a=1,v=1):
- # 设置机械臂的目标位置,使用六轴的位置数据进行描述(单位:弧度)
- if joint_configuration==None:
- joint_configuration = [0, -1.5707, 0, -1.5707, 0, 0]
- self.arm.set_max_acceleration_scaling_factor(a)
- self.arm.set_max_velocity_scaling_factor(v)
- self.arm.set_joint_value_target(joint_configuration)
- rospy.loginfo("move_j:"+str(joint_configuration))
- self.arm.go()
- rospy.sleep(1)
- # 空间规划,输入xyzRPY
- def move_p(self, tool_configuration=None,a=1,v=1):
- if tool_configuration==None:
- tool_configuration = [0.3,0,0.3,0,-np.pi/2,0]
- self.arm.set_max_acceleration_scaling_factor(a)
- self.arm.set_max_velocity_scaling_factor(v)
- target_pose = PoseStamped()
- target_pose.header.frame_id = 'base_link'
- target_pose.header.stamp = rospy.Time.now()
- target_pose.pose.position.x = tool_configuration[0]
- target_pose.pose.position.y = tool_configuration[1]
- target_pose.pose.position.z = tool_configuration[2]
- if len(tool_configuration) == 6:
- q = quaternion_from_euler(tool_configuration[3],tool_configuration[4],tool_configuration[5])
- target_pose.pose.orientation.x = q[0]
- target_pose.pose.orientation.y = q[1]
- target_pose.pose.orientation.z = q[2]
- target_pose.pose.orientation.w = q[3]
- else:
- target_pose.pose.orientation.x = tool_configuration[3]
- target_pose.pose.orientation.y = tool_configuration[4]
- target_pose.pose.orientation.z = tool_configuration[5]
- target_pose.pose.orientation.w = tool_configuration[6]
- self.arm.set_start_state_to_current_state()
- self.arm.set_pose_target(target_pose, self.end_effector_link)
- rospy.loginfo("move_p:" + str(tool_configuration))
- traj = self.arm.plan()
- path = traj[1]
- # file_path = "/home/chen/catkin_ws/src/lstrobot_planning/date/p_traj.txt"
- # if os.path.exists(file_path):
- # os.remove(file_path)
- # with open(file_path, "w") as file:
- # file.write(str(path))
- self.arm.execute(path)
- # rospy.sleep(1)
- def move_p2(self,point,points,trajectory,trajectory_with_type,a=1,v=1):
- self.arm.set_max_acceleration_scaling_factor(a)
- self.arm.set_max_velocity_scaling_factor(v)
- # self.arm.set_start_state_to_current_state()
- if trajectory:
- state = self.arm.get_current_state()
- state.joint_state.position = trajectory[-1].joint_trajectory.points[-1].positions
- self.arm.set_start_state(state)
-
- self.arm.set_pose_target(point, self.end_effector_link)
- rospy.loginfo("move_p:" + str(point))
- traj = self.arm.plan()
- trajj = traj[1]
- error_code =traj[3]
- rospy.loginfo("Move to start point planned successfully")
- trajj_with_type = mark_the_traj(trajj,"during-p",welding_sequence)
-
- points.append(point)
- trajectory.append(trajj)
- trajectory_with_type.append(trajj_with_type)
- return points,trajectory,trajectory_with_type
-
- def move_pl(self,point,points,trajectory,trajectory_with_type,a=1,v=1):
- self.arm.set_max_acceleration_scaling_factor(a)
- self.arm.set_max_velocity_scaling_factor(v)
- #设定约束
- if trajectory:
- #起点位置设置为规划组最后一个点
- state = self.arm.get_current_state()
- state.joint_state.position = trajectory[-1].joint_trajectory.points[-1].positions
- self.arm.set_start_state(state)#起点位置设置为规划组最后一个点
-
- self.arm.set_pose_target(point, self.end_effector_link)#设定目标点为传入的点
-
- # 创建路径约束
- path_constraints = self.create_path_constraints(points[-1],point)#将最后一个点和输入的点(焊缝的起始点)做圆柱轨迹约束
- self.arm.set_path_constraints(path_constraints)#设定约束
-
- #当前起点规划次数
- #尝试规划次数
- b = 20 #最多尝试规划10次
- for i in range(b):
- traj = self.arm.plan()#调用plan进行规划
- trajj = traj[1] #取出规划的信息
- error,Limit_margin = check.check_joint_positions(trajj)#检查关节状态 就是检测规划的轨迹有没有“摇花手”
-
- if not error:#如果没有摇花手 接受规划
- rospy.loginfo("本次焊缝规划 OK")
- break
- else:
- rospy.loginfo("焊缝规划失败-开始第{}次重新规划".format(i+1))
- # if i%10==0 and i!=0:#10次了都没成功 将这个点用p2规划
- # prePoint = points.pop()#移除列表中最后一个元素 返回被移除的对象
- # trajectory.pop()
- # trajectory_with_type.pop()
- # #清除约束
- # self.arm.clear_path_constraints()
- # points,trajectory,trajectory_with_type = self.move_p2(prePoint,points,trajectory,trajectory_with_type)
- # rospy.loginfo("第{}次尝试使用p2".format((i/10)%1))
- #规划失败
- if error:
- rospy.loginfo("{}次焊缝规划失败,进程终止".format(b))
- sys.exit()
- #清除约束
- self.arm.clear_path_constraints()
- trajj_with_type = mark_the_traj(trajj,"during-l",welding_sequence)
- trajj_with_type.points[-len(trajj.joint_trajectory.points)].type = "start"
- trajj_with_type.points[-1].type = "end"
- #如果调用了P2函数 那么这段代码不会导致重复添加?
- points.append(point)
- trajectory.append(trajj)
- trajectory_with_type.append(trajj_with_type)
- return points,trajectory,trajectory_with_type
- def create_path_constraints(self,start_point,end_point):
- #计算起点指向终点的向量
- vector = np.array([end_point[0]- start_point[0], end_point[1]- start_point[1], end_point[2]- start_point[2]])
- height = np.linalg.norm(vector)+0.002
- radius = 0.001
- constraints = Constraints()
-
- # 位置约束
- position_constraint = PositionConstraint()
- position_constraint.header.frame_id = "base_link"
- position_constraint.link_name = self.end_effector_link
- position_constraint.target_point_offset = Vector3(0, 0, 0)
- #构建 shape_msgs/SolidPrimitive 消息
- bounding_volume = SolidPrimitive()
- bounding_volume.type = SolidPrimitive.CYLINDER
- # bounding_volume.dimensions = [0.003,1]
- bounding_volume.dimensions = [height,radius]
- #构建 geometry_msgs/Pose 消息,用于指定圆柱体在空间中的位置和姿态
- pose = Pose()
- pose.position.x = start_point[0] + vector[0] / 2
- pose.position.y = start_point[1] + vector[1] / 2
- pose.position.z = start_point[2] + vector[2] / 2
-
- # 计算圆柱体的旋转矩阵
- z_axis = np.array([0, 0, 1])
- axis = np.cross(z_axis, vector)
- angle = np.arccos(np.dot(z_axis, vector) / np.linalg.norm(vector))
- q = tf.transformations.quaternion_about_axis(angle, axis)
- pose.orientation.x = q[0]
- pose.orientation.y = q[1]
- pose.orientation.z = q[2]
- pose.orientation.w = q[3]
- position_constraint.constraint_region.primitives.append(bounding_volume)
- position_constraint.constraint_region.primitive_poses.append(pose)
- position_constraint.weight = 1.0
- # 姿态约束
- # orientation_constraint = OrientationConstraint()
- # orientation_constraint.header.frame_id = "base_link"
- # orientation_constraint.link_name = self.end_effector_link
- # orientation_constraint.orientation = target_pose.orientation
- # orientation_constraint.absolute_x_axis_tolerance = 0.01
- # orientation_constraint.absolute_y_axis_tolerance = 0.01
- # orientation_constraint.absolute_z_axis_tolerance = 0.01
- # orientation_constraint.weight = 1.0
- constraints.position_constraints.append(position_constraint)
- # constraints.orientation_constraints.append(orientation_constraint)
- return constraints
-
- def move_l(self, tool_configuration,waypoints_number=1,a=0.5,v=0.5):
- if tool_configuration==None:
- tool_configuration = [0.3,0,0.3,0,-np.pi/2,0]
- self.arm.set_max_acceleration_scaling_factor(a)
- self.arm.set_max_velocity_scaling_factor(v)
- # 设置路点
- waypoints = []
- for i in range(waypoints_number):
- target_pose = PoseStamped()
- target_pose.header.frame_id = self.reference_frame
- target_pose.header.stamp = rospy.Time.now()
- target_pose.pose.position.x = tool_configuration[6*i+0]
- target_pose.pose.position.y = tool_configuration[6*i+1]
- target_pose.pose.position.z = tool_configuration[6*i+2]
- q = quaternion_from_euler(tool_configuration[6*i+3],tool_configuration[6*i+4],tool_configuration[6*i+5])
- target_pose.pose.orientation.x = q[0]
- target_pose.pose.orientation.y = q[1]
- target_pose.pose.orientation.z = q[2]
- target_pose.pose.orientation.w = q[3]
- waypoints.append(target_pose.pose)
- rospy.loginfo("move_l:" + str(tool_configuration))
- self.arm.set_start_state_to_current_state()
- fraction = 0.0 # 路径规划覆盖率
- maxtries = 100 # 最大尝试规划次数
- attempts = 0 # 已经尝试规划次数
- # 设置机器臂当前的状态作为运动初始状态
- self.arm.set_start_state_to_current_state()
- # 尝试规划一条笛卡尔空间下的路径,依次通过所有路点
- while fraction < 1.0 and attempts < maxtries:
- (plan, fraction) = self.arm.compute_cartesian_path(
- waypoints, # waypoint poses,路点列表
- 0.001, # eef_step,终端步进值
- 0.00, # jump_threshold,跳跃阈值
- True) # avoid_collisions,避障规划
- attempts += 1
- if fraction == 1.0:
- rospy.loginfo("Path computed successfully. Moving the arm.")
- self.arm.execute(plan)
- rospy.loginfo("Path execution complete.")
- else:
- rospy.loginfo(
- "Path planning failed with only " + str(fraction) +
- " success after " + str(maxtries) + " attempts.")
- rospy.sleep(1)
- def move_l22(self,point,points,trajectory,trajectory_with_type,a=0.5,v=0.5):
- self.arm.set_max_acceleration_scaling_factor(a)
- self.arm.set_max_velocity_scaling_factor(v)
- if trajectory:
- state = self.arm.get_current_state()
- state.joint_state.position = trajectory[-1].joint_trajectory.points[-1].positions
- self.arm.set_start_state(state)
-
- start_rotation_angle,end_rotation_angle = 0,0
- new_start_pose,new_end_pose = 0,0
- num_planed = 0
- while not start_rotation_angle == 2*pi:
- waypoints = []
- target_pose = point_to_PoseStamped(point,self.reference_frame)
- waypoints.append(target_pose.pose)
- rospy.loginfo("move_l2:" )
-
- num_remake = 2
- for _ in range(num_remake):
- num_planed +=1
- rospy.loginfo("第{}次规划".format(num_planed))
- rospy.loginfo("new_start_pose:{} new_end_pose:{}".format(new_start_pose,new_end_pose))
- fraction,traj = self.plan_cartesian_path(waypoints)
- if fraction == 1:
- error,percentage = check.check_joint_positions(traj)
- if not error:
- break
- if fraction != 1:
- break
- error,percentage = check.check_joint_positions(traj)
- if error:
- #三次重规划结束,仍然不符合,插点或转点
- angle_list = ([0,pi/4,-pi/4,pi/2,-pi/2,pi*3/4,-pi*3/4,pi,2*pi])
- if start_rotation_angle < pi:
- if end_rotation_angle < pi:
- index = angle_list.index(end_rotation_angle)
- end_rotation_angle = angle_list[index+1]
- new_end_pose = check.angle_adjustment(point,'z', start_rotation_angle) # 将目标位姿旋转一定角度
- point = new_end_pose # 将新的点替换原来位姿
- else:
- index = angle_list.index(start_rotation_angle)
- start_rotation_angle = angle_list[index+1]
- new_start_pose = check.angle_adjustment(points[-1],'z', start_rotation_angle) # 将目标位姿旋转一定角度
- #go home,plan p
- state = self.arm.get_current_state()
- state.joint_state.position = trajectory[-1].joint_trajectory.points[0].positions
- self.arm.set_start_state(state)
- del points[-1]
- del trajectory[-1]
- points,trajectory,trajectory_with_type = self.move_p2(new_start_pose,points,trajectory,trajectory_with_type)
- state.joint_state.position = trajectory[-1].joint_trajectory.points[-1].positions
- self.arm.set_start_state(state)
-
- end_rotation_angle = 0
-
- else:
- break
- if fraction != 1:
- rospy.loginfo("Plan Fail,Error code 1")
- sys.exit()
- elif error:
- rospy.loginfo("Plan Fail,Error code 2")
- sys.exit()
- else:
- traj_with_type = mark_the_traj(traj,"during-l",welding_sequence)
- traj_with_type.points[-len(traj.joint_trajectory.points)].type = "start"
- traj_with_type.points[-1].type = "end"
-
- points.append(point)
- trajectory.append(traj)
- trajectory_with_type.append(traj_with_type)
- return points,trajectory,trajectory_with_type
-
- def go_home(self,a=1,v=1):
- rospy.loginfo("go_home start")
- self.arm.set_max_acceleration_scaling_factor(a)
- self.arm.set_max_velocity_scaling_factor(v)
- # “up”为自定义姿态,你可以使用“home”或者其他姿态
- self.arm.set_named_target('home')
- self.arm.go()
- rospy.loginfo("go_home end")
- # rospy.sleep(1)
-
- def go_home_justplan(self,trajectory,trajectory_with_type,a=1,v=1):
- self.arm.set_max_acceleration_scaling_factor(a)
- self.arm.set_max_velocity_scaling_factor(v)
- # “up”为自定义姿态,你可以使用“home”或者其他姿态
- state = self.arm.get_current_state()
- state.joint_state.position = trajectory[-1].joint_trajectory.points[-1].positions
- self.arm.set_start_state(state)
- self.arm.set_named_target('home')
- traj = self.arm.plan()
- trajj = traj[1]
- traj_with_type = mark_the_traj(trajj,"go-home",welding_sequence)
- trajectory.append(trajj)
- trajectory_with_type.append(traj_with_type)
- return trajectory,trajectory_with_type
-
- def setColor(self, name, r, g, b, a=0.9):
- # 初始化moveit颜色对象
- color = ObjectColor()
- # 设置颜色值
- color.id = name
- color.color.r = r
- color.color.g = g
- color.color.b = b
- color.color.a = a
- # 更新颜色字典
- self.colors[name] = color
- # 将颜色设置发送并应用到moveit场景当中
- def sendColors(self):
- # 初始化规划场景对象
- p = PlanningScene()
- # 需要设置规划场景是否有差异
- p.is_diff = True
- # 从颜色字典中取出颜色设置
- for color in self.colors.values():
- p.object_colors.append(color)
- # 发布场景物体颜色设置
- self.scene_pub.publish(p)
- def path_planning(self,folder_path,gohome=True):
- file_path_result = os.path.join(folder_path, 'result.txt')
- all_data = process_welding_data(file_path_result)
- points,trajectory,trajectory_with_type = [],[],[]
- for i in range(len(all_data)):
- rospy.loginfo("共读取到%d条焊缝,开始规划第%d条",len(all_data),i+1)
- start_point = all_data[i][0]
- end_point = all_data[i][1]
- q1 = all_data[i][2]
- q2 = all_data[i][3]
- point11 = [start_point[0]/1000, start_point[1]/1000, start_point[2]/1000, q1[0],q1[1],q1[2],q1[3]]
- points,trajectory,trajectory_with_type = self.move_p_flexible(point11,points,trajectory,trajectory_with_type)
- point22 = [end_point[0]/1000, end_point[1]/1000, end_point[2]/1000, q2[0],q2[1],q2[2],q2[3]]
- points,trajectory,trajectory_with_type = self.move_pl(point22,points,trajectory,trajectory_with_type)
- rospy.loginfo("第%d条焊缝规划完毕",i+1)
- if gohome:
- points,trajectory,trajectory_with_type = self.move_p_flexible(self.home_pose,points,trajectory,trajectory_with_type)
- trajectory,trajectory_with_type = self.go_home_justplan(trajectory,trajectory_with_type)
- traj_merge= merge_trajectories(trajectory)
- trajectory_with_type_merge= merge_trajectories_with_type(trajectory_with_type)
- rospy.loginfo("All of The trajectory Plan successfully")
- return trajectory,traj_merge,trajectory_with_type_merge
- def path_planning_test(self,folder_path,i,reverse=False,gohome=True):
- file_path_result = os.path.join(folder_path, 'result.txt')
- all_data = process_welding_data(file_path_result)
- points,trajectory,trajectory_with_type = [],[],[]
- i -= 1
- rospy.loginfo("共读取到%d条焊缝,开始规划第%d条",len(all_data),i+1)
- start_point = all_data[i][0]
- end_point = all_data[i][1]
- q1 = all_data[i][2]
- q2 = all_data[i][3]
- if reverse:
- start_point = all_data[i][1]
- end_point = all_data[i][0]
- q1 = all_data[i][3]
- q2 = all_data[i][2]
- point11 = [start_point[0]/1000, start_point[1]/1000, start_point[2]/1000, q1[0],q1[1],q1[2],q1[3]]
- points,trajectory,trajectory_with_type = self.move_p2(point11,points,trajectory,trajectory_with_type)
- point22 = [end_point[0]/1000, end_point[1]/1000, end_point[2]/1000, q2[0],q2[1],q2[2],q2[3]]
- points,trajectory,trajectory_with_type = self.move_pl(point22,points,trajectory,trajectory_with_type)
- rospy.loginfo("第%d条焊缝规划完毕",i+1)
- if gohome:
- trajectory,trajectory_with_type = self.go_home_justplan(trajectory,trajectory_with_type)
- traj_merge= merge_trajectories(trajectory)
- trajectory_with_type_merge= merge_trajectories_with_type(trajectory_with_type)
- rospy.loginfo("All of The trajectory Plan successfully")
- return trajectory,traj_merge,trajectory_with_type_merge
- def point_to_PoseStamped(point,reference_frame):
- target_pose = PoseStamped()
- target_pose.header.frame_id = reference_frame
- target_pose.header.stamp = rospy.Time.now()
- target_pose.pose.position.x = point[0]
- target_pose.pose.position.y = point[1]
- target_pose.pose.position.z = point[2]
- if len(point) == 6:
- q = quaternion_from_euler(point[3],point[4],point[5])
- target_pose.pose.orientation.x = q[0]
- target_pose.pose.orientation.y = q[1]
- target_pose.pose.orientation.z = q[2]
- target_pose.pose.orientation.w = q[3]
- else:
- target_pose.pose.orientation.x = point[3]
- target_pose.pose.orientation.y = point[4]
- target_pose.pose.orientation.z = point[5]
- target_pose.pose.orientation.w = point[6]
- return target_pose
- def calculate_waypoints(start_pose,end_pose,spacing):
- start_position = np.array([start_pose.pose.position.x, start_pose.pose.position.y, start_pose.pose.position.z])
- start_orientation = euler_from_quaternion([start_pose.pose.orientation.x,start_pose.pose.orientation.y,start_pose.pose.orientation.z,start_pose.pose.orientation.w])
- end_position = np.array([end_pose.pose.position.x, end_pose.pose.position.y, end_pose.pose.position.z])
- end_orientation = euler_from_quaternion([end_pose.pose.orientation.x,end_pose.pose.orientation.y,end_pose.pose.orientation.z,end_pose.pose.orientation.w])
- distance = np.linalg.norm(np.array(end_position) - np.array(start_position))
- num_points = int(distance/spacing)
- trajectory = []
- for i in range(num_points + 1):
- alpha = float(i) / num_points
- position = [start + alpha * (end - start) for start, end in zip(start_position, end_position)]
- orientation = [start + alpha * (end - start) for start, end in zip(start_orientation, end_orientation)]
- trajectory.append(position + orientation)
- return trajectory,num_points + 1
-
- def process_welding_data(filename):
- all_data = [] # 用来存储每一行处理后的数据
- with open(filename, 'r') as file:
- for line in file:
- parts = line.strip().split('/')
- coordinates_and_poses = [part.split(',') for part in parts[1:]]
-
- start_point = tuple(map(float, coordinates_and_poses[0][:3])) # 使用元组以避免修改
- end_point = tuple(map(float, coordinates_and_poses[1][:3]))
- q1 = tuple(map(float, coordinates_and_poses[2][:4]))
- q2 = tuple(map(float, coordinates_and_poses[3][:4]))
-
- # 收集每行处理后的数据
- all_data.append((start_point, end_point, q1, q2))
- return all_data
- def mark_the_traj(traj,TYPE,SEQUENCE):
- traj_with_type = JointTrajectory_ex()
- traj_with_type.header = traj.joint_trajectory.header
- traj_with_type.joint_names = traj.joint_trajectory.joint_names
- traj_with_type.points = [
- JointTrajectoryPoint_ex(
- positions=point.positions,
- velocities=point.velocities,
- accelerations=point.accelerations,
- effort=point.effort,
- type=TYPE,
- sequence=SEQUENCE
- ) for point in traj.joint_trajectory.points
- ]
- return traj_with_type
- def merge_trajectories(trajectories):
- if not trajectories:
- return None
-
- # 创建一个新的 JointTrajectory 对象
- merged_trajectory = JointTrajectory()
- merged_trajectory.header = trajectories[0].joint_trajectory.header
- merged_trajectory.joint_names = trajectories[0].joint_trajectory.joint_names
-
- # 初始化时间累加器
- last_time_from_start = rospy.Duration(0)
-
- # 合并所有 trajectories 的 points
- for traj in trajectories:
- for point in traj.joint_trajectory.points:
- # 创建新的轨迹点
- new_point = deepcopy(point)
- # 累加时间
- new_point.time_from_start += last_time_from_start
- merged_trajectory.points.append(new_point)
-
- # 更新时间累加器为当前轨迹的最后一个点的时间
- if traj.joint_trajectory.points:
- last_time_from_start = traj.joint_trajectory.points[-1].time_from_start + last_time_from_start
-
- return merged_trajectory
- def merge_trajectories_with_type(trajectory_with_type):
- if not trajectory_with_type:
- return None
-
- # 创建一个新的 JointTrajectory 对象
- merged_trajectory_with_type = JointTrajectory_ex()
- merged_trajectory_with_type.header = trajectory_with_type[0].header
- merged_trajectory_with_type.joint_names = trajectory_with_type[0].joint_names
-
- # 初始化时间累加器
- last_time_from_start = rospy.Duration(0)
-
- # 合并所有 trajectories 的 points
- for traj in trajectory_with_type:
- for point in traj.points:
- # 创建新的轨迹点
- new_point = deepcopy(point)
- # 累加时间
- new_point.time_from_start += last_time_from_start
- merged_trajectory_with_type.points.append(new_point)
-
- # 更新时间累加器为当前轨迹的最后一个点的时间
- if traj.points:
- last_time_from_start = traj.points[-1].time_from_start + last_time_from_start
-
- return merged_trajectory_with_type
- def pub_trajectories(trajectory_with_type_merge):
-
- pub = rospy.Publisher("/joint_path", JointTrajectory_ex, queue_size=5)
- count = 1
- rate = rospy.Rate(1)
- rospy.loginfo("正在发布轨迹信息..")
- while not rospy.is_shutdown():
- #轨迹接受完毕,关闭当前发布
- sign_traj_accepted = str(rospy.get_param("sign_traj_accepted"))
- if sign_traj_accepted == "1":
- rospy.set_param("sign_traj_accepted",0)
- break
- pub.publish(trajectory_with_type_merge)
- # rospy.loginfo("发布计数,count = %d",count)
- # count += 1
- rate.sleep()
- if __name__ =="__main__":
- folder_path = rospy.get_param("folder_path")
- moveit_server = MoveIt_Control(is_use_gripper=False)
- moveit_server.arm.set_num_planning_attempts(10)
-
- #获取规划信息,并规划
- # folder_path = ("/home/chen/catkin_ws/data/0412")
- welding_sequence = rospy.get_param('welding_sequence')
- trajectory,trajectory_merge,trajectory_with_type_merge = moveit_server.path_planning(folder_path)
- # trajectory,trajectory_merge,trajectory_with_type_merge = moveit_server.path_planning_test(folder_path,1,True)
- #执行动作
- moveit_server.arm.execute(trajectory_merge)
-
- # for i in range(1 * 2 - 0): #执行到第i条焊缝
- # moveit_server.arm.execute(trajectory[i])
-
- #发布规划完毕的轨迹信息
- pub_trajectories(trajectory_with_type_merge)
|