622 lines
29 KiB
Python
622 lines
29 KiB
Python
#!/usr/bin/env python3
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"""Модуль Б: один запуск, маршрут туда, пауза эксперта, маршрут обратно.
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python3 module_b.py --target 14 --sim
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Команды в терминале: Enter / go, stop, resume, return, quit.
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"""
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import argparse
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import heapq
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import json
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import math
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import queue
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import re
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import signal
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import sys
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import threading
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import time
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from datetime import datetime
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from pathlib import Path
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# Все параметры модуля Б находятся здесь. Перед реальным полем меняются в одном месте.
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ROWS = 6
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COLS = 6
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MARKER_SPACING = 1.0
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BLOCKED_MARKERS = set()
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ROBOT_NAMESPACE = "RMC2"
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MARKER_PREFIX = "aruco_"
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# RMC2.proto: край корпуса находится примерно в 0.373 м от base_link.
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# Четыре сантиметра запаса оставляют проходимым узкий коридор у marker 33.
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ROBOT_HALF_LENGTH = 0.375
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ROBOT_HALF_WIDTH = 0.375
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SAFETY_MARGIN = 0.04
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ROUTE_CLEARANCE = 0.44
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MAX_LINEAR = 0.25
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MAX_ANGULAR = 0.45
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LINEAR_ACCEL = 0.35
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ANGULAR_ACCEL = 0.80
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POSITION_TOLERANCE = 0.025
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YAW_TOLERANCE = 0.045
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MOVE_YAW_TOLERANCE = 0.14
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SENSOR_TIMEOUT = 1.5
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MARKER_TIMEOUT = 0.8
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WAYPOINT_TIMEOUT = 50.0
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MISSION_TIMEOUT = 330.0
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def wrap(angle):
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return math.atan2(math.sin(angle), math.cos(angle))
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def clamp(value, low, high):
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return max(low, min(high, value))
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def compose(a, b):
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"""Переносит позу b из системы a в её родительскую систему."""
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x, y, yaw = a
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c, s = math.cos(yaw), math.sin(yaw)
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return x + c*b[0] - s*b[1], y + s*b[0] + c*b[1], wrap(yaw+b[2])
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def inverse(pose):
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x, y, yaw = pose
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c, s = math.cos(yaw), math.sin(yaw)
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return -c*x-s*y, s*x-c*y, -yaw
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def distance(a, b):
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return math.hypot(a[0]-b[0], a[1]-b[1])
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def segment_distance(point, a, b):
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dx, dy = b[0]-a[0], b[1]-a[1]
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length2 = dx*dx+dy*dy
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if length2 == 0:
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return distance(point, a)
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t = clamp(((point[0]-a[0])*dx+(point[1]-a[1])*dy)/length2, 0, 1)
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return distance(point, (a[0]+t*dx, a[1]+t*dy))
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class Field:
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"""Регулярная сетка ArUco и кратчайший путь по ней."""
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def __init__(self):
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self.poses = {}
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self.graph = {}
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for row in range(ROWS):
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for col in range(COLS):
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marker = row*COLS+col
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self.poses[marker] = (-row*MARKER_SPACING, col*MARKER_SPACING, 0.0)
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self.graph[marker] = [
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r*COLS+c for r, c in
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((row+1, col), (row, col+1), (row-1, col), (row, col-1))
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if 0 <= r < ROWS and 0 <= c < COLS
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]
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def nearest(self, x, y):
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return min(self.poses, key=lambda marker: distance((x, y), self.poses[marker]))
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def route(self, start, goal, obstacle_points=(), forbidden_edges=()):
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"""Дейкстра: кратчайший по длине свободный путь."""
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if start not in self.poses or goal not in self.poses:
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raise ValueError("ID старта или цели отсутствует в графе")
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if start in BLOCKED_MARKERS or goal in BLOCKED_MARKERS:
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raise ValueError("Старт или цель заблокированы")
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forbidden = {frozenset(edge) for edge in forbidden_edges}
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costs = {start: 0.0}
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parents = {start: None}
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queue_path = [(0.0, start)]
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while queue_path:
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cost, current = heapq.heappop(queue_path)
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if cost > costs[current]:
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continue
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if current == goal:
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path = []
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while current is not None:
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path.append(current)
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current = parents[current]
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return path[::-1]
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for neighbor in self.graph[current]:
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edge = frozenset((current, neighbor))
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if neighbor in BLOCKED_MARKERS or edge in forbidden:
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continue
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a, b = self.poses[current], self.poses[neighbor]
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if any(segment_distance(p, a, b) < ROUTE_CLEARANCE for p in obstacle_points):
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continue
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new_cost = cost+distance(a, b)
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if new_cost < costs.get(neighbor, math.inf):
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costs[neighbor] = new_cost
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parents[neighbor] = current
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heapq.heappush(queue_path, (new_cost, neighbor))
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raise ValueError(f"Нет безопасного маршрута {start} -> {goal}")
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def arguments():
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parser = argparse.ArgumentParser(description=__doc__)
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target = parser.add_mutually_exclusive_group(required=True)
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target.add_argument("--target", type=int, help="ID целевой метки")
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target.add_argument("--xy", nargs=2, type=float, help="Координаты цели на карте, метры")
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parser.add_argument("--sim", action="store_true", help="Часы Webots /clock")
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parser.add_argument("--target-yaw", type=float, help="Ориентация на цели в системе поля, рад")
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parser.add_argument("--auto", action="store_true", help="Только тренировка: без команд эксперта")
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parser.add_argument("--return-delay", type=float, default=5.0, help="Пауза --auto, секунд симуляции")
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parser.add_argument("--dry-run", action="store_true", help="Показать путь без ROS и без движения")
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parser.add_argument("--start", type=int, default=0, help="Старт только для --dry-run")
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args = parser.parse_args()
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if args.auto and not args.sim:
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parser.error("--auto разрешён только с --sim")
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if args.return_delay < 0 or not math.isfinite(args.return_delay):
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parser.error("--return-delay должен быть конечным неотрицательным числом")
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if args.target_yaw is not None and not math.isfinite(args.target_yaw):
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parser.error("--target-yaw должен быть конечным числом")
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if args.xy and not all(math.isfinite(v) for v in args.xy):
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parser.error("--xy должен содержать конечные числа")
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return args
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def main():
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args = arguments()
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field = Field()
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target = args.target if args.target is not None else field.nearest(*args.xy)
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if target not in field.poses or target in BLOCKED_MARKERS:
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raise SystemExit("Целевая метка отсутствует в графе или заблокирована")
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if args.dry_run:
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print("ROUTE", field.route(args.start, target), "TARGET", field.poses[target])
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return
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import rclpy
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from geometry_msgs.msg import Twist
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from nav_msgs.msg import Odometry
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from rclpy.clock import Clock, ClockType
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from rclpy.node import Node
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from rclpy.qos import qos_profile_sensor_data
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from rclpy.signals import SignalHandlerOptions
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from rclpy.time import Time
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from sensor_msgs.msg import LaserScan
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from std_msgs.msg import Bool, String
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from tf2_ros import Buffer, TransformListener, TransformException
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def yaw(q):
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return math.atan2(2*(q.w*q.z+q.x*q.y), 1-2*(q.y*q.y+q.z*q.z))
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def tf_pose(transform):
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t = transform.transform
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return t.translation.x, t.translation.y, yaw(t.rotation)
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class Mission(Node):
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def __init__(self):
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super().__init__("mvch_module_b")
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self.set_parameters([rclpy.parameter.Parameter("use_sim_time", value=args.sim)])
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self.cfg = {
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"max_linear": MAX_LINEAR, "max_angular": MAX_ANGULAR,
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"linear_accel": LINEAR_ACCEL, "angular_accel": ANGULAR_ACCEL,
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"position_tolerance": POSITION_TOLERANCE,
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"yaw_tolerance": YAW_TOLERANCE,
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"move_yaw_tolerance": MOVE_YAW_TOLERANCE,
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"sensor_timeout": SENSOR_TIMEOUT, "marker_timeout": MARKER_TIMEOUT,
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"waypoint_timeout": WAYPOINT_TIMEOUT, "mission_timeout": MISSION_TIMEOUT,
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}
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self.robot = {
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"namespace": ROBOT_NAMESPACE, "marker_prefix": MARKER_PREFIX,
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"clearance": ROUTE_CLEARANCE, "half_length": ROBOT_HALF_LENGTH,
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"half_width": ROBOT_HALF_WIDTH, "safety_margin": SAFETY_MARGIN,
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}
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ns = ROBOT_NAMESPACE.strip("/")
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self.base, self.odom_frame = f"{ns}/base_link", f"{ns}/odom"
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self.buffer = Buffer()
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self.listener = TransformListener(self.buffer, self)
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self.pub = self.create_publisher(Twist, f"/{ns}/cmd_vel", 1)
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self.status_pub = self.create_publisher(String, "/mvch/status", 10)
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self.create_subscription(Odometry, f"/{ns}/odometry", self.on_odom, qos_profile_sensor_data)
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self.create_subscription(LaserScan, f"/{ns}/scan", self.on_scan, qos_profile_sensor_data)
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self.create_subscription(String, f"/{ns}/aruco_id", self.on_marker, 10)
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self.create_subscription(Bool, "/mvch/emergency_stop", self.on_stop, 10)
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self.create_subscription(String, "/mvch/command", lambda m: self.commands.put(m.data), 10)
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self.commands = queue.Queue()
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self.state, self.leg = "WAIT_SENSORS", "outbound"
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self.odom = self.map_from_odom = self.pose = None
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self.odom_wall = self.scan_wall = 0.0
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self.scan = None
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self.points, self.body_points = [], []
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self.lidar_tf_wall = 0.0
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self.lidar_tf_error = "TF лидара ещё не получен"
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self.marker = None
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self.marker_wall = self.marker_stamp = 0.0
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self.marker_distance = math.inf
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self.start = self.current = None
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self.start_yaw = 0.0
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self.goal, self.route, self.index = target, [], 0
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self.forbidden = set()
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self.paused = False
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self.terminal = False
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self.failed = False
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self.v = self.w = 0.0
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self.last_sim = self.now()
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self.last_wall = self.clock_wall = time.monotonic()
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self.last_clock = self.last_sim
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self.leg_started = self.waypoint_started = self.last_sim
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self.total_time = 0.0
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self.last_status = 0.0
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self.wait_reason = ""
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log_dir = Path(__file__).parent / "reports"
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log_dir.mkdir(exist_ok=True)
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self.log_path = log_dir / f"module_b_{datetime.now():%Y%m%d_%H%M%S_%f}.jsonl"
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self.log_file = self.log_path.open("a", encoding="utf-8", buffering=1)
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# Таймер на монотонных часах: остановка сработает даже при паузе /clock.
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self.timer = self.create_timer(0.05, self.tick, clock=Clock(clock_type=ClockType.STEADY_TIME))
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self.log("READY", target=target, config="constants in module_b.py", sim=args.sim,
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instructions="Enter/go: старт; return: построить возврат; stop/resume; quit")
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def now(self):
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return self.get_clock().now().nanoseconds / 1e9
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def log(self, event, **data):
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item = dict(time=datetime.now().isoformat(timespec="milliseconds"),
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sim_time=round(self.now(), 3), event=event, leg=self.leg, **data)
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line = json.dumps(item, ensure_ascii=False)
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print(line, flush=True)
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self.log_file.write(line+"\n")
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def on_odom(self, msg):
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p = msg.pose.pose
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pose = p.position.x, p.position.y, yaw(p.orientation)
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if all(math.isfinite(v) for v in pose):
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self.odom, self.odom_wall = pose, time.monotonic()
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def on_scan(self, msg):
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# Пустой/повреждённый скан не считается свободным пространством.
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if not msg.ranges or msg.angle_increment == 0:
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return
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if not any(math.isfinite(r) and msg.range_min <= r <= msg.range_max for r in msg.ranges):
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return
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self.scan, self.scan_wall = msg, time.monotonic()
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def on_marker(self, msg):
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match = re.fullmatch(re.escape(MARKER_PREFIX)+r"(\d+)", msg.data.strip())
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if not match and msg.data.strip().isdigit():
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marker = int(msg.data.strip())
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elif match:
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marker = int(match[1])
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else:
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return
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if marker in field.poses:
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self.marker, self.marker_wall = marker, time.monotonic()
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def on_stop(self, msg):
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if msg.data:
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self.paused = True
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self.stop()
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self.log("EMERGENCY_STOP")
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# false сам по себе не разрешает движение: требуется resume.
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def localize(self):
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if self.odom is None or self.marker is None:
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return
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frame = MARKER_PREFIX+str(self.marker)
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try:
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transform = self.buffer.lookup_transform(self.odom_frame, frame, Time())
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stamp = transform.header.stamp.sec+transform.header.stamp.nanosec/1e9
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if not 0 <= self.now()-stamp < self.cfg["marker_timeout"]:
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return
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if time.monotonic()-self.marker_wall > self.cfg["sensor_timeout"]:
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return
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odom_marker = tf_pose(transform)
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self.marker_distance = distance(odom_marker, self.odom)
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if stamp <= self.marker_stamp:
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return
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correction = compose(field.poses[self.marker], inverse(odom_marker))
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if self.map_from_odom is not None:
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old_pose = compose(self.map_from_odom, self.odom)
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new_pose = compose(correction, self.odom)
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if distance(old_pose, new_pose) > 0.4 or abs(wrap(old_pose[2]-new_pose[2])) > 0.6:
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return # Не принимаем скачок распознавания; таймаут остановит у метки.
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self.map_from_odom, self.marker_stamp = correction, stamp
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except TransformException:
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pass
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def scan_points(self):
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scan = self.scan
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try:
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# В этом симуляторе laser_merged повёрнут на 120 градусов!
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mount = tf_pose(self.buffer.lookup_transform(self.base, scan.header.frame_id, Time()))
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# Последний TF достаточно свежий: scan проверяется отдельно по wall-clock.
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# Запрос строго по stamp иногда попадает между двумя odom TF и кратко падает.
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at_scan = tf_pose(self.buffer.lookup_transform(self.odom_frame, self.base, Time()))
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except TransformException as error:
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self.lidar_tf_error = str(error)
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return False
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scan_in_map = compose(compose(self.map_from_odom, at_scan), mount)
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body_from_map = inverse(self.pose)
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points = {}
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for i, r in enumerate(scan.ranges):
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if not math.isfinite(r) or not scan.range_min <= r <= scan.range_max:
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continue
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angle = scan.angle_min+i*scan.angle_increment
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p = compose(scan_in_map, (r*math.cos(angle), r*math.sin(angle), 0))[:2]
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b = compose(body_from_map, (*p, 0))
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if abs(b[0]) < self.robot["half_length"] and abs(b[1]) < self.robot["half_width"]:
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continue # собственный корпус, не внешнее препятствие
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points[(round(p[0]/0.04), round(p[1]/0.04))] = p
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self.points = list(points.values())
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self.body_points = [compose(body_from_map, (*p, 0)) for p in self.points]
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self.lidar_tf_wall = time.monotonic()
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self.lidar_tf_error = ""
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return True
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def plan(self):
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self.stop()
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try:
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self.route = field.route(
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self.current, self.goal, self.points, self.forbidden
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)
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except ValueError as error:
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self.abort(str(error))
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return
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self.index = 1
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self.state = "WAIT_GO"
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direction = "К ЦЕЛИ" if self.leg == "outbound" else "НА СТАРТ"
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print(f"\nМАРШРУТ {direction}: {' -> '.join(map(str, self.route))}", flush=True)
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print("Ровер пока стоит. Эксперт проверяет маршрут; Enter/go разрешает движение.\n",
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flush=True)
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self.log("ROUTE", markers=self.route, goal=self.goal)
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self.log("WAIT_GO", message="Эксперт фиксирует маршрут. Enter/go разрешает движение.")
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def stop(self):
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self.v = self.w = 0.0
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self.pub.publish(Twist())
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def abort(self, reason):
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self.stop()
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self.failed = self.terminal = True
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self.state = "FAILED"
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self.log("FAILED", reason=reason, current=self.current)
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def command(self, command):
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command = command.strip().lower()
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if command in ("stop", "s"):
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self.paused = True
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self.stop()
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self.log("EMERGENCY_STOP")
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elif command == "resume":
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self.paused = False
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self.log("RESUME")
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elif command in ("quit", "q"):
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self.abort("Остановлено оператором")
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elif self.state == "WAIT_RETURN" and command in ("", "return", "go"):
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self.leg, self.goal = "return", self.start
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self.forbidden.clear()
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self.plan()
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elif self.state == "WAIT_GO" and command in ("", "go") and not self.paused:
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# Новая преграда за время паузы: сначала показать новый маршрут.
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try:
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updated = field.route(
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self.current, self.goal, self.points, self.forbidden
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)
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except ValueError as error:
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self.abort(str(error))
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return
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if updated != self.route:
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self.plan()
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return
|
||
self.state = "DRIVE"
|
||
self.leg_started = self.waypoint_started = self.now()
|
||
self.log("movement_start", markers=self.route)
|
||
|
||
def blocked_motion(self, v, w):
|
||
margin = self.robot["safety_margin"]
|
||
# Тормозной путь + время реакции; размеры считаются от центра корпуса.
|
||
braking = v*v/(2*self.cfg["linear_accel"])+abs(v)*0.25
|
||
front = self.robot["half_length"]+margin+braking
|
||
width = self.robot["half_width"]+margin
|
||
if abs(v) > 0.001:
|
||
direction = 1 if v > 0 else -1
|
||
return any(0 < direction*x < front and abs(y) < width for x, y, _ in self.body_points)
|
||
if abs(w) > 0.001:
|
||
return any(math.hypot(x, y) < self.robot["clearance"] for x, y, _ in self.body_points)
|
||
return False
|
||
|
||
def send(self, v, w, dt):
|
||
if self.blocked_motion(v, w):
|
||
self.stop()
|
||
return False
|
||
self.v += clamp(v-self.v, -self.cfg["linear_accel"]*dt, self.cfg["linear_accel"]*dt)
|
||
self.w += clamp(w-self.w, -self.cfg["angular_accel"]*dt, self.cfg["angular_accel"]*dt)
|
||
# Поворот на месте и аварийная остановка не должны оставлять линейный хвост.
|
||
if v == 0:
|
||
self.v = 0.0
|
||
if self.blocked_motion(self.v, self.w):
|
||
self.stop()
|
||
return False
|
||
msg = Twist()
|
||
msg.linear.x, msg.angular.z = float(self.v), float(self.w)
|
||
self.pub.publish(msg)
|
||
return True
|
||
|
||
def drive(self, dt):
|
||
if self.now()-self.waypoint_started > self.cfg["waypoint_timeout"]:
|
||
self.abort("Таймаут точки: проверить камеру, препятствие и положение робота")
|
||
return
|
||
if self.state == "ALIGN":
|
||
desired = args.target_yaw if self.leg == "outbound" else self.start_yaw
|
||
error = wrap(desired-self.pose[2])
|
||
if abs(error) <= self.cfg["yaw_tolerance"]:
|
||
self.arrived()
|
||
else:
|
||
self.send(0, clamp(1.4*error, -self.cfg["max_angular"], self.cfg["max_angular"]), dt)
|
||
return
|
||
if self.index >= len(self.route) and self.state != "BACKTRACK":
|
||
if self.leg == "return" or args.target_yaw is not None:
|
||
self.state = "ALIGN"
|
||
else:
|
||
self.arrived()
|
||
return
|
||
marker = self.current if self.state == "BACKTRACK" else self.route[self.index]
|
||
target_pose = field.poses[marker]
|
||
dx, dy = target_pose[0]-self.pose[0], target_pose[1]-self.pose[1]
|
||
d = math.hypot(dx, dy)
|
||
fresh = self.marker == marker and 0 <= self.now()-self.marker_stamp < self.cfg["marker_timeout"]
|
||
if d < self.cfg["position_tolerance"] and fresh and self.marker_distance < 0.04:
|
||
self.stop()
|
||
if self.state == "BACKTRACK":
|
||
self.log("BACKTRACK_DONE", marker=marker)
|
||
try:
|
||
self.route = field.route(
|
||
self.current, self.goal, self.points, self.forbidden
|
||
)
|
||
except ValueError as error:
|
||
self.abort(str(error))
|
||
return
|
||
self.index, self.state = 1, "DRIVE"
|
||
self.log("ROUTE_REPLANNED", markers=self.route)
|
||
else:
|
||
self.current = marker
|
||
self.index += 1
|
||
self.log("WAYPOINT", marker=marker, pose=list(self.pose), marker_error=self.marker_distance)
|
||
self.waypoint_started = self.now()
|
||
return
|
||
if d < self.cfg["position_tolerance"] and not fresh:
|
||
self.stop() # Без свежей метки достижение НЕ засчитываем.
|
||
return
|
||
error = wrap(math.atan2(dy, dx)-self.pose[2])
|
||
# Если следующая метка сзади, едем к ней задним ходом. Это не даёт
|
||
# роботу разворачиваться корпусом вплотную к стеллажам у marker 33.
|
||
reverse = self.state == "BACKTRACK" or abs(error) > math.pi/2
|
||
if reverse:
|
||
error = wrap(error-math.pi)
|
||
v = min(self.cfg["max_linear"], 0.8*d)
|
||
if reverse:
|
||
v = -min(v, 0.12)
|
||
if abs(error) > self.cfg["move_yaw_tolerance"]:
|
||
v = 0
|
||
w = clamp(1.5*error, -self.cfg["max_angular"], self.cfg["max_angular"])
|
||
if not self.send(v, w, dt) and self.state == "DRIVE":
|
||
edge = (self.current, marker)
|
||
self.forbidden.add(edge)
|
||
self.log("OBSTACLE", edge=edge, pose=list(self.pose))
|
||
# Вернуться по уже пройденному ребру, затем ехать по новому графу.
|
||
self.state = "BACKTRACK"
|
||
self.waypoint_started = self.now()
|
||
self.log("BACKTRACK", marker=self.current)
|
||
|
||
def arrived(self):
|
||
self.stop()
|
||
elapsed = self.now()-self.leg_started
|
||
self.total_time += elapsed
|
||
self.log("movement_stop", marker=self.goal, seconds=round(elapsed, 3))
|
||
if self.leg == "outbound":
|
||
self.state = "WAIT_RETURN"
|
||
self.return_wait = self.now()
|
||
self.log("TARGET_REACHED", marker=self.goal,
|
||
message="Выставьте препятствие. return/Enter строит обратный маршрут.")
|
||
else:
|
||
self.state, self.terminal = "FINISHED", True
|
||
self.log("MISSION_FINISHED", marker=self.start, movement_seconds=round(self.total_time, 3))
|
||
|
||
def tick(self):
|
||
wall, now = time.monotonic(), self.now()
|
||
dt = clamp(now-self.last_sim, 0, 0.15)
|
||
if now < self.last_sim-0.01:
|
||
self.abort("Часы симуляции сброшены; запустите новую попытку")
|
||
return
|
||
if now != self.last_clock:
|
||
self.clock_wall, self.last_clock = wall, now
|
||
self.last_sim = now
|
||
self.localize()
|
||
if self.map_from_odom is not None and self.odom is not None:
|
||
self.pose = compose(self.map_from_odom, self.odom)
|
||
reasons = []
|
||
if self.pose is None:
|
||
reasons.append("нет локализации")
|
||
if self.scan is None:
|
||
reasons.append("нет scan")
|
||
if wall-self.odom_wall >= SENSOR_TIMEOUT:
|
||
reasons.append(f"odometry старше {wall-self.odom_wall:.2f}с")
|
||
if wall-self.scan_wall >= SENSOR_TIMEOUT:
|
||
reasons.append(f"scan старше {wall-self.scan_wall:.2f}с")
|
||
if wall-self.clock_wall >= SENSOR_TIMEOUT:
|
||
reasons.append(f"clock старше {wall-self.clock_wall:.2f}с")
|
||
healthy = not reasons
|
||
if healthy and not self.scan_points():
|
||
# Один краткий промах TF не должен ставить миссию на вечную паузу.
|
||
if wall-self.lidar_tf_wall >= SENSOR_TIMEOUT:
|
||
reasons.append("TF лидара: "+self.lidar_tf_error)
|
||
healthy = False
|
||
if not healthy:
|
||
self.stop()
|
||
if self.state != "WAIT_SENSORS" and not self.paused:
|
||
self.paused = True
|
||
self.log("SENSOR_STOP", reason="; ".join(reasons),
|
||
message="После восстановления введите resume")
|
||
while not self.commands.empty():
|
||
command = self.commands.get_nowait()
|
||
if healthy or command.strip() in ("stop", "quit", "q", "s"):
|
||
self.command(command)
|
||
if not healthy or self.paused or self.terminal:
|
||
self.stop()
|
||
return
|
||
if wall-self.last_status > 1:
|
||
msg = String()
|
||
msg.data = json.dumps(dict(state=self.state, leg=self.leg, pose=self.pose,
|
||
current=self.current, route=self.route))
|
||
self.status_pub.publish(msg)
|
||
self.last_status = wall
|
||
if self.state == "WAIT_SENSORS":
|
||
if self.marker_distance > 0.04:
|
||
return
|
||
self.start = self.current = self.marker
|
||
self.start_yaw = self.pose[2]
|
||
self.log("LOCALIZED", marker=self.start, pose=list(self.pose))
|
||
self.plan()
|
||
elif self.state == "WAIT_GO":
|
||
self.stop()
|
||
if args.auto:
|
||
self.command("go")
|
||
elif self.state == "WAIT_RETURN":
|
||
self.stop()
|
||
if args.auto and now-self.return_wait >= args.return_delay:
|
||
self.command("return")
|
||
else:
|
||
if self.total_time+now-self.leg_started > self.cfg["mission_timeout"]:
|
||
self.abort("Превышено время миссии")
|
||
else:
|
||
self.drive(dt)
|
||
|
||
rclpy.init(signal_handler_options=SignalHandlerOptions.NO)
|
||
node = Mission()
|
||
quitting = threading.Event()
|
||
signal.signal(signal.SIGINT, lambda *_: quitting.set())
|
||
signal.signal(signal.SIGTERM, lambda *_: quitting.set())
|
||
|
||
def read_commands():
|
||
for line in sys.stdin:
|
||
node.commands.put(line)
|
||
|
||
threading.Thread(target=read_commands, daemon=True).start()
|
||
try:
|
||
while rclpy.ok() and not quitting.is_set() and not node.terminal:
|
||
rclpy.spin_once(node, timeout_sec=0.05)
|
||
if quitting.is_set() and not node.terminal:
|
||
node.abort("SIGINT/SIGTERM")
|
||
except Exception as error:
|
||
node.abort(f"{type(error).__name__}: {error}")
|
||
raise
|
||
finally:
|
||
# Перед закрытием соединения несколько раз отправить настоящий нулевой Twist.
|
||
for _ in range(5):
|
||
node.stop()
|
||
time.sleep(0.04)
|
||
node.log_file.close()
|
||
node.destroy_node()
|
||
rclpy.shutdown()
|
||
if node.failed:
|
||
raise SystemExit(1)
|
||
|
||
|
||
if __name__ == "__main__":
|
||
main()
|