refactor: remove command_mode from configuration and related files

This commit is contained in:
Даниил Грабарь
2026-05-25 12:30:59 +10:00
parent e60402c8f2
commit b560fcf229
13 changed files with 35 additions and 299 deletions
-1
View File
@@ -2,7 +2,6 @@ robot:
name: "iiwa7"
ip: "192.170.10.2"
port: 30200
command_mode: "position" # torque, position
fri_cycle_ms: 10 # период FRI-цикла: 5 мс (200 Гц) или 10 мс (100 Гц)
joint_position_tau: 0.04 # EMA фильтр позиций [с]: сглаживает команды перед отправкой в FRI
joint_velocity_tau: 0.01 # EMA фильтр скорости [с]: убирает выбросы конечных разностей
@@ -1,160 +0,0 @@
from launch import LaunchDescription
from launch.actions import (
DeclareLaunchArgument,
EmitEvent,
IncludeLaunchDescription,
OpaqueFunction,
RegisterEventHandler,
)
from launch.conditions import IfCondition
from launch.event_handlers import OnProcessExit
from launch.events import Shutdown
from launch.launch_description_sources import PythonLaunchDescriptionSource
from launch.substitutions import LaunchConfiguration, PathJoinSubstitution
from launch_ros.actions import Node
from launch_ros.substitutions import FindPackageShare
from moveit_configs_utils import MoveItConfigsBuilder
from iiwa_utils import converter, setting_loader
def _runtime_setup(context, *args, **kwatgs):
setup = []
settings = setting_loader.build_settings(
settings_path=LaunchConfiguration("setting").perform(context), check_files=True
)
robot_description = converter.load_robot_description(
model_path=settings.robot.description,
robot_name=settings.robot.name,
xacro_args={
"initial_positions_file": settings.controller.moveit.initial_positions
},
)
rsp_node = Node(
package="robot_state_publisher",
executable="robot_state_publisher",
name="robot_state_publisher",
output="screen",
parameters=[{"robot_description": robot_description, "use_sim_time": True}],
)
webots_launch = IncludeLaunchDescription(
PythonLaunchDescriptionSource(
PathJoinSubstitution(
[
FindPackageShare("iiwa_bringup"),
"launch",
"supported",
"webots_spawn.launch.py",
]
)
),
launch_arguments={
"robot_name": str(settings.robot.name),
"description": str(settings.robot.description),
"world": str(settings.digital_twin.webots.world),
"transform": str(settings.digital_twin.webots.transform),
"rotation": str(settings.digital_twin.webots.rotation),
"controller_timer": str(settings.digital_twin.webots.controller_timer),
"controller": str(settings.controller.controller_path),
"initial_positions_file": str(settings.controller.moveit.initial_positions),
}.items(),
)
moveit_configs = (
MoveItConfigsBuilder("iiwa7", package_name="iiwa_config")
.robot_description(
file_path=settings.robot.description,
mappings={
"initial_positions_file": settings.controller.moveit.initial_positions
},
)
.robot_description_semantic(file_path=settings.controller.moveit.srdf)
.robot_description_kinematics(file_path=settings.controller.moveit.kinematics)
.joint_limits(file_path=settings.controller.moveit.joint_limits)
.pilz_cartesian_limits(file_path=settings.controller.moveit.pilz_limits)
.trajectory_execution(file_path=settings.controller.moveit.moveit_controllers)
.moveit_cpp(file_path=settings.controller.moveit.moveit_cpp)
.to_moveit_configs()
)
move_group = Node(
package="moveit_ros_move_group",
executable="move_group",
output="screen",
parameters=[
moveit_configs.to_dict(),
{"robot_description": robot_description},
{"use_sim_time": True},
],
)
# TODO: не забудь поменять правильное название и имя пакета
# moveit_py_node = Node(
# # name="motion_planning_node",
# package="iiwa_planning",
# executable="motion_planning",
# output="both",
# parameters=[moveit_configs.to_dict()],
# )
rviz_launch = Node(
condition=IfCondition(LaunchConfiguration("rviz")),
package="rviz2",
executable="rviz2",
name="rviz2",
arguments=["-d", settings.digital_twin.rviz.config],
output="log",
parameters=[
moveit_configs.robot_description,
moveit_configs.robot_description_semantic,
moveit_configs.planning_pipelines,
moveit_configs.planning_scene_monitor,
{"use_sim_time": True},
],
)
shutdown_on_rviz_exit = RegisterEventHandler(
OnProcessExit(target_action=rviz_launch, on_exit=[EmitEvent(event=Shutdown())])
)
setup += [
rsp_node,
webots_launch,
move_group,
# moveit_py_node,
rviz_launch,
shutdown_on_rviz_exit,
]
return setup
def generate_launch_description():
declare_rviz = DeclareLaunchArgument(
name="rviz",
default_value="0",
description="If true|1|yes then launch RViz/MoveIt branch (instead of controllers branch)",
)
declacre_setting = DeclareLaunchArgument(
name="setting",
default_value=PathJoinSubstitution(
[FindPackageShare("iiwa_config"), "config", "setting.yaml"]
),
description="Absolute path to settings file",
)
runtime_setup = OpaqueFunction(function=_runtime_setup)
return LaunchDescription(
[
declare_rviz,
declacre_setting,
runtime_setup,
]
)
-2
View File
@@ -65,7 +65,6 @@ def _runtime_setup(context, *args, **kwargs):
"robot_ip": settings.robot.ip,
"fri_port": str(settings.robot.port),
"simulate": "false",
"command_mode": settings.robot.command_mode,
"joint_position_tau": str(settings.robot.joint_position_tau),
}
use_sim_time = False
@@ -168,7 +167,6 @@ def _runtime_setup(context, *args, **kwargs):
"transform": str(settings.digital_twin.webots.transform),
"rotation": str(settings.digital_twin.webots.rotation),
"simulate": "false",
"command_mode": settings.robot.command_mode,
"controller_timer": str(settings.digital_twin.webots.controller_timer),
"fri_cycle_ms": str(settings.robot.fri_cycle_ms),
"joint_position_tau": str(settings.robot.joint_position_tau),
@@ -19,7 +19,6 @@ def _setup_controllers(context, *args, **kwargs):
controller_timer = LaunchConfiguration("controller_timer").perform(context)
controller_path = LaunchConfiguration("controller_path").perform(context)
simulate = LaunchConfiguration("simulate").perform(context).lower() in ("true", "1", "yes")
command_mode = LaunchConfiguration("command_mode").perform(context)
controller = LaunchConfiguration("controller").perform(context) # "jtc" | "forward"
fri_cycle_ms = int(LaunchConfiguration("fri_cycle_ms").perform(context))
joint_position_tau = LaunchConfiguration("joint_position_tau").perform(context)
@@ -65,18 +64,10 @@ def _setup_controllers(context, *args, **kwargs):
parameters=[{"use_sim_time": True}],
)
torque_controller_spawner = Node(
package="controller_manager",
executable="spawner",
output="screen",
arguments=["iiwa_arm_torque_controller", "--inactive"] + tmo,
parameters=[{"use_sim_time": True}]
)
jtc_after_jsb = RegisterEventHandler(
OnProcessExit(
target_action=jsb,
on_exit=[jtc, torque_controller_spawner],
on_exit=[jtc],
)
)
@@ -107,9 +98,8 @@ def _setup_controllers(context, *args, **kwargs):
cm = ["--controller-manager", "/controller_manager"]
# JTC: активен если controller=jtc (и command_mode=position), иначе --inactive
jtc_args = ["iiwa_arm_controller"] + cm
if command_mode == "torque" or controller == "forward":
if controller == "forward":
jtc_args += ["--inactive"]
# ForwardCommandController: активен если controller=forward, иначе --inactive
@@ -117,11 +107,6 @@ def _setup_controllers(context, *args, **kwargs):
if controller != "forward":
forward_args += ["--inactive"]
# TorqueController: активен если command_mode=torque и controller=jtc
torque_args = ["iiwa_arm_torque_controller"] + cm
if not (command_mode == "torque" and controller == "jtc"):
torque_args += ["--inactive"]
jtc = Node(
package="controller_manager",
executable="spawner",
@@ -136,17 +121,10 @@ def _setup_controllers(context, *args, **kwargs):
arguments=forward_args,
)
torque_controller = Node(
package="controller_manager",
executable="spawner",
output="screen",
arguments=torque_args,
)
jtc_after_jsb = RegisterEventHandler(
OnProcessExit(
target_action=jsb,
on_exit=[jtc, forward_controller, torque_controller],
on_exit=[jtc, forward_controller],
)
)
@@ -159,7 +137,6 @@ def _setup_controllers(context, *args, **kwargs):
def generate_launch_description():
return LaunchDescription([
DeclareLaunchArgument("command_mode", default_value="position"),
DeclareLaunchArgument("fri_cycle_ms", default_value="5"),
DeclareLaunchArgument("joint_position_tau", default_value="0.04"),
DeclareLaunchArgument("controller", default_value="jtc"),
-1
View File
@@ -2,7 +2,6 @@ robot:
name: "iiwa7"
ip: "192.170.10.2"
port: 30200
command_mode: "position" # torque, position
fri_cycle_ms: 10 # период FRI-цикла: 5 мс (200 Гц) или 10 мс (100 Гц)
joint_position_tau: 0.04 # EMA фильтр позиций [с]: сглаживает команды перед отправкой в FRI
joint_velocity_tau: 0.01 # EMA фильтр скорости [с]: убирает выбросы конечных разностей
@@ -5,7 +5,7 @@
base_class_type="hardware_interface::SystemInterface">
<description>
ROS2 hardware interface для KUKA iiwa 7 через FRI (Fast Robot Interface).
Поддерживает режимы управления: position, torque.
Поддерживает управление в режиме position через FRI.
</description>
</class>
</library>
@@ -11,11 +11,6 @@
namespace iiwa_controller
{
enum class CommandMode
{
POSITION,
TORQUE
};
// Снимок состояния робота захватывается атомарно за один lock в FRI-потоке
// и так же за один lock читается из read() в потоке управления.
@@ -40,7 +35,7 @@ public:
// joint_position_tau — постоянная времени экспоненциального фильтра позиций [с].
// Аналог joint_position_tau из lbr_fri_ros2_stack (по умолчанию 0.04 с = 40 мс).
// Сглаживает скачки команд перед отправкой роботу → убирает писк и стук суставов.
explicit FRIClient(CommandMode mode = CommandMode::POSITION, double joint_position_tau = 0.04);
explicit FRIClient(double joint_position_tau = 0.04);
~FRIClient() override = default;
// Коллбэки FRI SDK, вызываются из friThreadFunc через ClientApplication::step()
@@ -52,19 +47,16 @@ public:
// Потокобезопасное API для ros2_control, вызывается из read() и write()
void setTargetJointPositions(const std::array<double, N_JOINTS> & q);
void setTargetJointTorques(const std::array<double, N_JOINTS> & tau);
IIWAStateSnapshot getStateSnapshot() const;
bool isCommandingActive() const;
KUKA::FRI::ESessionState getSessionState() const;
private:
CommandMode cmd_mode_;
double joint_position_tau_;
std::atomic<KUKA::FRI::ESessionState> session_state_{KUKA::FRI::IDLE};
mutable std::mutex data_mutex_;
std::array<double, N_JOINTS> target_pos_{};
std::array<double, N_JOINTS> target_tau_{};
// Сглаженная позиция, которую реально отправляем роботу.
// Инициализируется IPO-позицией в waitForCommand(), чтобы не было скачка при старте.
std::array<double, N_JOINTS> filtered_pos_{};
@@ -59,7 +59,6 @@ private:
std::string robot_ip_;
int fri_port_{30200};
bool simulate_{false};
std::string cmd_mode_str_{"position"};
double joint_position_tau_{0.04};
// EMA-фильтр скорости: сглаживает одиночные выбросы конечных разностей.
// joint_velocity_tau = 0 отключает фильтр (raw finite difference).
@@ -82,9 +81,7 @@ private:
std::array<hardware_interface::StateInterface::SharedPtr, N_JOINTS> h_eff_;
std::array<hardware_interface::StateInterface::SharedPtr, N_JOINTS> h_ext_;
// Хэндлы командных интерфейсов
std::array<hardware_interface::CommandInterface::SharedPtr, N_JOINTS> h_cmd_pos_;
std::array<hardware_interface::CommandInterface::SharedPtr, N_JOINTS> h_cmd_eff_;
// Вычисление скорости: конечные разности + EMA-фильтр
std::array<double, N_JOINTS> prev_pos_{};
@@ -100,7 +97,6 @@ private:
rclcpp::Clock throttle_clock_{RCL_STEADY_TIME};
CommandMode parseCommandMode(const std::string & mode_str) const;
};
} // namespace iiwa_controller
+2 -29
View File
@@ -20,11 +20,10 @@ static const char * friStateName(KUKA::FRI::ESessionState s)
}
}
FRIClient::FRIClient(CommandMode mode, double joint_position_tau)
: cmd_mode_(mode), joint_position_tau_(joint_position_tau)
FRIClient::FRIClient(double joint_position_tau)
: joint_position_tau_(joint_position_tau)
{
target_pos_.fill(0.0);
target_tau_.fill(0.0);
filtered_pos_.fill(0.0);
}
@@ -86,12 +85,6 @@ void FRIClient::waitForCommand()
std::memcpy(filtered_pos_.data(), snapshot_.ipo_pos.data(), N_JOINTS * sizeof(double));
robotCommand().setJointPosition(filtered_pos_.data());
if (cmd_mode_ == CommandMode::TORQUE) {
// Пока контроллер не синхронизирован, момент держим на нуле
target_tau_.fill(0.0);
robotCommand().setTorque(target_tau_.data());
}
}
// Вызывается в COMMANDING_ACTIVE, основной цикл управления
@@ -110,10 +103,6 @@ void FRIClient::command()
robotCommand().setJointPosition(filtered_pos_.data());
if (cmd_mode_ == CommandMode::TORQUE) {
robotCommand().setTorque(target_tau_.data());
}
// Захватываем снимок ПОСЛЕ EMA: measured_pos = filtered_pos_ = что робот только что получил.
captureCommandingData();
}
@@ -131,11 +120,6 @@ void FRIClient::onStateChange(
newState == KUKA::FRI::MONITORING_WAIT ||
newState == KUKA::FRI::MONITORING_READY)
{
std::lock_guard<std::mutex> lock(data_mutex_);
target_tau_.fill(0.0);
RCLCPP_WARN(
rclcpp::get_logger("FRIClient"),
"FRI сессия неактивна, моменты обнулены");
}
}
@@ -152,17 +136,6 @@ void FRIClient::setTargetJointPositions(const std::array<double, N_JOINTS> & q)
target_pos_ = q;
}
void FRIClient::setTargetJointTorques(const std::array<double, N_JOINTS> & tau)
{
for (const auto & v : tau) {
if (!std::isfinite(v)) {
return;
}
}
std::lock_guard<std::mutex> lock(data_mutex_);
target_tau_ = tau;
}
IIWAStateSnapshot FRIClient::getStateSnapshot() const
{
std::lock_guard<std::mutex> lock(data_mutex_);
@@ -46,15 +46,13 @@ CallbackReturn IIWAHardwareInterface::on_init(
robot_ip_ = getParam(info, "robot_ip", "192.170.10.2");
fri_port_ = std::stoi(getParam(info, "fri_port", "30200"));
simulate_ = (getParam(info, "simulate", "false") == "true");
cmd_mode_str_ = getParam(info, "command_mode", "position");
joint_position_tau_ = std::stod(getParam(info, "joint_position_tau", "0.04"));
joint_velocity_tau_ = std::stod(getParam(info, "joint_velocity_tau", "0.01"));
RCLCPP_INFO(rclcpp::get_logger(LOG),
"on_init: ip=%s port=%d simulate=%s mode=%s pos_tau=%.3f vel_tau=%.3f",
"on_init: ip=%s port=%d simulate=%s pos_tau=%.3f vel_tau=%.3f",
robot_ip_.c_str(), fri_port_,
simulate_ ? "true" : "false",
cmd_mode_str_.c_str(),
joint_position_tau_,
joint_velocity_tau_);
@@ -99,7 +97,7 @@ CallbackReturn IIWAHardwareInterface::on_configure(const rclcpp_lifecycle::State
return CallbackReturn::SUCCESS;
}
fri_client_ = std::make_unique<FRIClient>(parseCommandMode(cmd_mode_str_), joint_position_tau_);
fri_client_ = std::make_unique<FRIClient>(joint_position_tau_);
// 100 мс таймаут recvfrom — поток корректно завершится после disconnect().
connection_ = std::make_unique<KUKA::FRI::UdpConnection>(100);
app_ = std::make_unique<KUKA::FRI::ClientApplication>(*connection_, *fri_client_);
@@ -132,10 +130,8 @@ CallbackReturn IIWAHardwareInterface::on_activate(const rclcpp_lifecycle::State
h_eff_[i] = get_state_interface_handle(jn + "/" + hardware_interface::HW_IF_EFFORT);
h_ext_[i] = get_state_interface_handle(jn + "/external_torque");
h_cmd_pos_[i] = get_command_interface_handle(jn + "/" + hardware_interface::HW_IF_POSITION);
h_cmd_eff_[i] = get_command_interface_handle(jn + "/" + hardware_interface::HW_IF_EFFORT);
if (!h_pos_[i] || !h_vel_[i] || !h_eff_[i] || !h_ext_[i] ||
!h_cmd_pos_[i] || !h_cmd_eff_[i])
if (!h_pos_[i] || !h_vel_[i] || !h_eff_[i] || !h_ext_[i] || !h_cmd_pos_[i])
{
RCLCPP_FATAL(rclcpp::get_logger(LOG),
"Не удалось получить хэндл интерфейса для сустава '%s'. "
@@ -199,7 +195,7 @@ CallbackReturn IIWAHardwareInterface::on_deactivate(const rclcpp_lifecycle::Stat
for (size_t i = 0; i < N_JOINTS; ++i) {
h_pos_[i] = h_vel_[i] = h_eff_[i] = h_ext_[i] = nullptr;
h_cmd_pos_[i] = h_cmd_eff_[i] = nullptr;
h_cmd_pos_[i] = nullptr;
}
velocity_initialized_ = false;
@@ -342,23 +338,14 @@ hardware_interface::return_type IIWAHardwareInterface::write(
return hardware_interface::return_type::OK;
}
std::array<double, N_JOINTS> pos_cmd{}, tau_cmd{};
std::array<double, N_JOINTS> pos_cmd{};
for (size_t i = 0; i < N_JOINTS; ++i) {
get_command(h_cmd_pos_[i], pos_cmd[i], false);
get_command(h_cmd_eff_[i], tau_cmd[i], false);
}
fri_client_->setTargetJointPositions(pos_cmd);
fri_client_->setTargetJointTorques(tau_cmd);
return hardware_interface::return_type::OK;
}
// ── parseCommandMode ───────────────────────────────────────────────────────────
CommandMode IIWAHardwareInterface::parseCommandMode(const std::string & mode_str) const
{
return (mode_str == "torque") ? CommandMode::TORQUE : CommandMode::POSITION;
}
} // namespace iiwa_controller
+7 -30
View File
@@ -6,7 +6,6 @@
<xacro:arg name="simulate" default="false"/>
<xacro:arg name="robot_ip" default="192.170.10.2"/>
<xacro:arg name="fri_port" default="30200"/>
<xacro:arg name="command_mode" default="position"/>
<xacro:arg name="joint_position_tau" default="0.04"/>
<xacro:arg name="joint_velocity_tau" default="0.01"/>
@@ -147,7 +146,6 @@
<param name="robot_ip">$(arg robot_ip)</param>
<param name="fri_port">$(arg fri_port)</param>
<param name="simulate">false</param>
<param name="command_mode">$(arg command_mode)</param>
<param name="joint_position_tau">$(arg joint_position_tau)</param>
<param name="joint_velocity_tau">$(arg joint_velocity_tau)</param>
</hardware>
@@ -157,10 +155,7 @@
<param name="min">-2.97</param>
<param name="max"> 2.97</param>
</command_interface>
<command_interface name="effort">
<param name="min">-200</param>
<param name="max"> 200</param>
</command_interface>
<state_interface name="position">
<param name="initial_value">${initial_positions['joint1']}</param>
</state_interface>
@@ -173,10 +168,7 @@
<param name="min">-2.09</param>
<param name="max"> 2.09</param>
</command_interface>
<command_interface name="effort">
<param name="min">-200</param>
<param name="max"> 200</param>
</command_interface>
<state_interface name="position">
<param name="initial_value">${initial_positions['joint2']}</param>
</state_interface>
@@ -189,10 +181,7 @@
<param name="min">-2.97</param>
<param name="max"> 2.97</param>
</command_interface>
<command_interface name="effort">
<param name="min">-200</param>
<param name="max"> 200</param>
</command_interface>
<state_interface name="position">
<param name="initial_value">${initial_positions['joint3']}</param>
</state_interface>
@@ -205,10 +194,7 @@
<param name="min">-2.09</param>
<param name="max"> 2.09</param>
</command_interface>
<command_interface name="effort">
<param name="min">-200</param>
<param name="max"> 200</param>
</command_interface>
<state_interface name="position">
<param name="initial_value">${initial_positions['joint4']}</param>
</state_interface>
@@ -221,10 +207,7 @@
<param name="min">-2.97</param>
<param name="max"> 2.97</param>
</command_interface>
<command_interface name="effort">
<param name="min">-200</param>
<param name="max"> 200</param>
</command_interface>
<state_interface name="position">
<param name="initial_value">${initial_positions['joint5']}</param>
</state_interface>
@@ -237,10 +220,7 @@
<param name="min">-2.09</param>
<param name="max"> 2.09</param>
</command_interface>
<command_interface name="effort">
<param name="min">-200</param>
<param name="max"> 200</param>
</command_interface>
<state_interface name="position">
<param name="initial_value">${initial_positions['joint6']}</param>
</state_interface>
@@ -253,10 +233,7 @@
<param name="min">-3.05</param>
<param name="max"> 3.05</param>
</command_interface>
<command_interface name="effort">
<param name="min">-200</param>
<param name="max"> 200</param>
</command_interface>
<state_interface name="position">
<param name="initial_value">${initial_positions['joint7']}</param>
</state_interface>
@@ -38,10 +38,10 @@ class IiwaMotionServer(Node):
"""Сервер управления движением манипулятора iiwa.
Предоставляет:
- action iiwa/move_to_pose перемещение в декартову позу
- action iiwa/move_to_joints перемещение по суставным координатам
- service iiwa/move_to_named перемещение в именованную позу из SRDF
- service iiwa/stop немедленная остановка движения
- action cobot/move_to_pose перемещение в декартову позу
- action cobot/move_to_joints перемещение по суставным координатам
- service cobot/move_to_named перемещение в именованную позу из SRDF
- service cobot/stop немедленная остановка движения
"""
def __init__(self):
@@ -75,19 +75,19 @@ class IiwaMotionServer(Node):
cb = ReentrantCallbackGroup()
ActionServer(
self, MoveToPose, "iiwa/move_to_pose", self._execute_pose,
self, MoveToPose, "cobot/move_to_pose", self._execute_pose,
callback_group=cb,
goal_callback=lambda _: GoalResponse.ACCEPT,
cancel_callback=lambda _: CancelResponse.ACCEPT,
)
ActionServer(
self, MoveToJoints, "iiwa/move_to_joints", self._execute_joints,
self, MoveToJoints, "cobot/move_to_joints", self._execute_joints,
callback_group=cb,
goal_callback=lambda _: GoalResponse.ACCEPT,
cancel_callback=lambda _: CancelResponse.ACCEPT,
)
self.create_service(MoveToNamedPose, "iiwa/move_to_named", self._handle_named, callback_group=cb)
self.create_service(Trigger, "iiwa/stop", self._handle_stop, callback_group=cb)
self.create_service(MoveToNamedPose, "cobot/move_to_named", self._handle_named, callback_group=cb)
self.create_service(Trigger, "cobot/stop", self._handle_stop, callback_group=cb)
def _make_plan_params(self, pipeline: str, planner_id: str, plan_time: float, velocity_scale: float, accel_scale: float | None = None) -> PlanRequestParameters:
params = PlanRequestParameters(self._moveit, self._planning_group)
@@ -13,7 +13,6 @@ class RobotCfg:
name: str
ip: str
port: int
command_mode: str
description: str
fri_cycle_ms: int
joint_position_tau: float
@@ -247,7 +246,6 @@ def build_settings(settings_path: str, check_files: bool = True) -> Settings:
name=str(require(robot_raw, "name")),
ip=str(require(robot_raw, "ip")),
port=int(require(robot_raw, "port")),
command_mode=str(require(robot_raw, "command_mode")),
description=resolve_path(str(require(robot_raw, "description")), settings_dir),
fri_cycle_ms=int(robot_raw.get("fri_cycle_ms", 5)),
joint_position_tau=float(robot_raw.get("joint_position_tau", 0.04)),