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lerobot/eval_robot/replay_robot.py
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2025-11-21 14:13:05 +01:00

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4.6 KiB
Python

"""'
Refer to: lerobot/lerobot/scripts/eval.py
lerobot/lerobot/scripts/econtrol_robot.py
lerobot/robot_devices/control_utils.py
"""
import time
import numpy as np
from multiprocessing.sharedctypes import SynchronizedArray
from lerobot.configs import parser
from lerobot.datasets.lerobot_dataset import LeRobotDataset
from unitree_lerobot.eval_robot.make_robot import (
setup_image_client,
setup_robot_interface,
process_images_and_observations,
)
from unitree_lerobot.eval_robot.utils.utils import cleanup_resources, EvalRealConfig
from unitree_lerobot.eval_robot.utils.rerun_visualizer import RerunLogger, visualization_data
from unitree_lerobot.eval_robot.utils.utils import to_list, to_scalar
import logging_mp
logging_mp.basic_config(level=logging_mp.INFO)
logger_mp = logging_mp.get_logger(__name__)
@parser.wrap()
def replay_main(cfg: EvalRealConfig):
logger_mp.info(f"Arguments: {cfg}")
if cfg.visualization:
rerun_logger = RerunLogger()
image_info = setup_image_client(cfg)
robot_interface = setup_robot_interface(cfg)
"""The main control and evaluation loop."""
# Unpack interfaces for convenience
arm_ctrl, arm_ik, ee_shared_mem, arm_dof, ee_dof = (
robot_interface[key] for key in ["arm_ctrl", "arm_ik", "ee_shared_mem", "arm_dof", "ee_dof"]
)
tv_img_array, wrist_img_array, tv_img_shape, wrist_img_shape, is_binocular, has_wrist_cam = (
image_info[key]
for key in [
"tv_img_array",
"wrist_img_array",
"tv_img_shape",
"wrist_img_shape",
"is_binocular",
"has_wrist_cam",
]
)
logger_mp.info(f"Starting evaluation loop at {cfg.frequency} Hz.")
dataset = LeRobotDataset(repo_id=cfg.repo_id, root=cfg.root, episodes=[cfg.episodes])
actions = dataset.hf_dataset.select_columns("action")
# init pose
from_idx = dataset.episode_data_index["from"][0].item()
step = dataset[from_idx]
init_left_arm_pose = step["observation.state"][:14].cpu().numpy()
user_input = input("Please enter the start signal (enter 's' to start the subsequent program):")
if user_input.lower() == "s":
# "The initial positions of the robot's arm and fingers take the initial positions during data recording."
logger_mp.info("Initializing robot to starting pose...")
tau = arm_ik.solve_tau(init_left_arm_pose)
arm_ctrl.ctrl_dual_arm(init_left_arm_pose, tau)
time.sleep(1)
for idx in range(dataset.num_frames):
loop_start_time = time.perf_counter()
left_ee_state = right_ee_state = np.array([])
action_np = actions[idx]["action"].numpy()
# exec action
arm_action = action_np[:arm_dof]
tau = arm_ik.solve_tau(arm_action)
arm_ctrl.ctrl_dual_arm(arm_action, tau)
logger_mp.info(f"arm_action {arm_action}, tau {tau}")
if cfg.ee:
ee_action_start_idx = arm_dof
left_ee_action = action_np[ee_action_start_idx : ee_action_start_idx + ee_dof]
right_ee_action = action_np[ee_action_start_idx + ee_dof : ee_action_start_idx + 2 * ee_dof]
logger_mp.info(f"EE Action: left {left_ee_action}, right {right_ee_action}")
with ee_shared_mem["lock"]:
full_state = np.array(ee_shared_mem["state"][:])
left_ee_state = full_state[:ee_dof]
right_ee_state = full_state[ee_dof:]
if isinstance(ee_shared_mem["left"], SynchronizedArray):
ee_shared_mem["left"][:] = to_list(left_ee_action)
ee_shared_mem["right"][:] = to_list(right_ee_action)
elif hasattr(ee_shared_mem["left"], "value") and hasattr(ee_shared_mem["right"], "value"):
ee_shared_mem["left"].value = to_scalar(left_ee_action)
ee_shared_mem["right"].value = to_scalar(right_ee_action)
if cfg.visualization:
observation, current_arm_q = process_images_and_observations(
tv_img_array, wrist_img_array, tv_img_shape, wrist_img_shape, is_binocular, has_wrist_cam, arm_ctrl
)
state = np.concatenate((current_arm_q, left_ee_state, right_ee_state))
visualization_data(idx, observation, state, action_np, rerun_logger)
# Maintain frequency
time.sleep(max(0, (1.0 / cfg.frequency) - (time.perf_counter() - loop_start_time)))
cleanup_resources(image_info)
if __name__ == "__main__":
replay_main()