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feat(tier4_autoware_utils): add vehicle state checker #896

Merged
1 change: 1 addition & 0 deletions common/tier4_autoware_utils/CMakeLists.txt
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Expand Up @@ -9,6 +9,7 @@ find_package(Boost REQUIRED)
ament_auto_add_library(tier4_autoware_utils SHARED
src/tier4_autoware_utils.cpp
src/planning/planning_marker_helper.cpp
src/vehicle/vehicle_state_checker.cpp
)

if(BUILD_TESTING)
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169 changes: 169 additions & 0 deletions common/tier4_autoware_utils/docs/vehicle/vehicle.md
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# vehicle utils

Vehicle utils provides a convenient library used to check vehicle status.

## Feature

The library contains following classes.

### vehicle_stop_checker

This class check whether the vehicle is stopped or not based on localization result.

#### Subscribed Topics

| Name | Type | Description |
| ------------------------------- | ------------------------- | ---------------- |
| `/localization/kinematic_state` | `nav_msgs::msg::Odometry` | vehicle odometry |

#### Parameters

| Name | Type | Default Value | Explanation |
| -------------------------- | ------ | ------------- | --------------------------- |
| `velocity_buffer_time_sec` | double | 10.0 | odometry buffering time [s] |

#### Member functions

```c++
bool isVehicleStopped(const double stop_duration)
```

- Check simply whether the vehicle is stopped based on the localization result.
- Returns `true` if the vehicle is stopped, even if system outputs a non-zero target velocity.

#### Example Usage

Necessary includes:

```c++
#include <tier4_autoware_utils/vehicle/vehicle_state_checker.hpp>
```

1.Create a checker instance.

```c++
class SampleNode : public rclcpp::Node
{
public:
SampleNode() : Node("sample_node")
{
vehicle_stop_checker_ = std::make_unique<VehicleStopChecker>(this);
}

std::unique_ptr<VehicleStopChecker> vehicle_stop_checker_;

bool sampleFunc();

...
}
```

2.Check the vehicle state.

```c++

bool SampleNode::sampleFunc()
{
...

const auto result_1 = vehicle_stop_checker_->isVehicleStopped();

...

const auto result_2 = vehicle_stop_checker_->isVehicleStopped(3.0);

...
}

```

### vehicle_arrival_checker

This class check whether the vehicle arrive at stop point based on localization and planning result.

#### Subscribed Topics

| Name | Type | Description |
| ---------------------------------------- | ---------------------------------------------- | ---------------- |
| `/localization/kinematic_state` | `nav_msgs::msg::Odometry` | vehicle odometry |
| `/planning/scenario_planning/trajectory` | `autoware_auto_planning_msgs::msg::Trajectory` | trajectory |

#### Parameters

| Name | Type | Default Value | Explanation |
| -------------------------- | ------ | ------------- | ---------------------------------------------------------------------- |
| `velocity_buffer_time_sec` | double | 10.0 | odometry buffering time [s] |
| `th_arrived_distance_m` | double | 1.0 | threshold distance to check if vehicle has arrived at target point [m] |

#### Member functions

```c++
bool isVehicleStopped(const double stop_duration)
```

- Check simply whether the vehicle is stopped based on the localization result.
- Returns `true` if the vehicle is stopped, even if system outputs a non-zero target velocity.

```c++
bool isVehicleStoppedAtStopPoint(const double stop_duration)
```

- Check whether the vehicle is stopped at stop point based on the localization and planning result.
- Returns `true` if the vehicle is not only stopped but also arrived at stop point.

#### Example Usage

Necessary includes:

```c++
#include <tier4_autoware_utils/vehicle/vehicle_state_checker.hpp>
```

1.Create a checker instance.

```c++
class SampleNode : public rclcpp::Node
{
public:
SampleNode() : Node("sample_node")
{
vehicle_arrival_checker_ = std::make_unique<VehicleArrivalChecker>(this);
}

std::unique_ptr<VehicleArrivalChecker> vehicle_arrival_checker_;

bool sampleFunc();

...
}
```

2.Check the vehicle state.

```c++

bool SampleNode::sampleFunc1()
{
...

const auto result_1 = vehicle_arrival_checker_->isVehicleStopped();

...

const auto result_2 = vehicle_arrival_checker_->isVehicleStopped(3.0);

...

const auto result_3 = vehicle_arrival_checker_->isVehicleStoppedAtStopPoint();

...

const auto result_4 = vehicle_arrival_checker_->isVehicleStoppedAtStopPoint(3.0);

...
}
```

## Assumptions / Known limits

`vehicle_stop_checker` and `vehicle_arrival_checker` cannot check whether the vehicle is stopped more than `velocity_buffer_time_sec` second.
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// Copyright 2022 TIER IV, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef TIER4_AUTOWARE_UTILS__VEHICLE__VEHICLE_STATE_CHECKER_HPP_
#define TIER4_AUTOWARE_UTILS__VEHICLE__VEHICLE_STATE_CHECKER_HPP_

#include <rclcpp/rclcpp.hpp>

#include <autoware_auto_planning_msgs/msg/trajectory.hpp>
#include <geometry_msgs/msg/twist_stamped.hpp>
#include <nav_msgs/msg/odometry.hpp>

#include <deque>
#include <memory>

namespace tier4_autoware_utils
{

using autoware_auto_planning_msgs::msg::Trajectory;
using geometry_msgs::msg::TwistStamped;
using nav_msgs::msg::Odometry;

class VehicleStopChecker
{
public:
explicit VehicleStopChecker(rclcpp::Node * node);

bool isVehicleStopped(const double stop_duration) const;

rclcpp::Logger getLogger() { return logger_; }

protected:
rclcpp::Subscription<Odometry>::SharedPtr sub_odom_;
rclcpp::Clock::SharedPtr clock_;
rclcpp::Logger logger_;

Odometry::SharedPtr odometry_ptr_;

std::deque<TwistStamped> twist_buffer_;

private:
static constexpr double velocity_buffer_time_sec = 10.0;

void onOdom(const Odometry::SharedPtr msg);
};

class VehicleArrivalChecker : public VehicleStopChecker
{
public:
explicit VehicleArrivalChecker(rclcpp::Node * node);

bool isVehicleStoppedAtStopPoint(const double stop_duration) const;

private:
static constexpr double th_arrived_distance_m = 1.0;
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In future, I want to set this parameter as global parameter.
FYI: #910


rclcpp::Subscription<Trajectory>::SharedPtr sub_trajectory_;

Trajectory::SharedPtr trajectory_ptr_;

void onTrajectory(const Trajectory::SharedPtr msg);
};
} // namespace tier4_autoware_utils

#endif // TIER4_AUTOWARE_UTILS__VEHICLE__VEHICLE_STATE_CHECKER_HPP_
1 change: 1 addition & 0 deletions common/tier4_autoware_utils/package.xml
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Expand Up @@ -13,6 +13,7 @@
<build_depend>autoware_cmake</build_depend>

<depend>autoware_auto_planning_msgs</depend>
<depend>autoware_auto_vehicle_msgs</depend>
<depend>builtin_interfaces</depend>
<depend>diagnostic_msgs</depend>
<depend>geometry_msgs</depend>
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123 changes: 123 additions & 0 deletions common/tier4_autoware_utils/src/vehicle/vehicle_state_checker.cpp
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// Copyright 2022 TIER IV, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "tier4_autoware_utils/vehicle/vehicle_state_checker.hpp"

#include "tier4_autoware_utils/trajectory/trajectory.hpp"

#include <string>

namespace tier4_autoware_utils
{
VehicleStopChecker::VehicleStopChecker(rclcpp::Node * node)
: clock_(node->get_clock()), logger_(node->get_logger())
{
using std::placeholders::_1;

sub_odom_ = node->create_subscription<Odometry>(
"/localization/kinematic_state", rclcpp::QoS(1),
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std::bind(&VehicleStopChecker::onOdom, this, _1));
}

bool VehicleStopChecker::isVehicleStopped(const double stop_duration = 0.0) const
{
if (twist_buffer_.empty()) {
return false;
}

constexpr double stop_velocity = 1e-3;
const auto now = clock_->now();

const auto time_buffer_back = now - twist_buffer_.back().header.stamp;
if (time_buffer_back.seconds() < stop_duration) {
return false;
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}

const auto time_buffer_front = now - twist_buffer_.front().header.stamp;
if (time_buffer_front.seconds() > stop_duration) {
return twist_buffer_.front().twist.linear.x < stop_velocity;
}

// Get velocities within stop_duration
for (const auto & velocity : twist_buffer_) {
if (stop_velocity <= velocity.twist.linear.x) {
return false;
}

const auto time_diff = now - velocity.header.stamp;
if (time_diff.seconds() >= stop_duration) {
break;
}
}

return true;
}

void VehicleStopChecker::onOdom(const Odometry::SharedPtr msg)
{
odometry_ptr_ = msg;

auto current_velocity = std::make_shared<TwistStamped>();
current_velocity->header = msg->header;
current_velocity->twist = msg->twist.twist;

twist_buffer_.push_front(*current_velocity);

const auto now = clock_->now();
while (true) {
// Check oldest data time
const auto time_diff = now - twist_buffer_.back().header.stamp;

// Finish when oldest data is newer than threshold
if (time_diff.seconds() <= velocity_buffer_time_sec) {
break;
}

// Remove old data
twist_buffer_.pop_back();
}
}

VehicleArrivalChecker::VehicleArrivalChecker(rclcpp::Node * node) : VehicleStopChecker(node)
{
using std::placeholders::_1;

sub_trajectory_ = node->create_subscription<Trajectory>(
"/planning/scenario_planning/trajectory", rclcpp::QoS(1),
std::bind(&VehicleArrivalChecker::onTrajectory, this, _1));
}

bool VehicleArrivalChecker::isVehicleStoppedAtStopPoint(const double stop_duration = 0.0) const
{
if (!odometry_ptr_ || !trajectory_ptr_) {
return false;
}

if (!isVehicleStopped(stop_duration)) {
return false;
}

const auto & p = odometry_ptr_->pose.pose.position;
const auto idx = searchZeroVelocityIndex(trajectory_ptr_->points);

if (!idx) {
return false;
}

return std::abs(calcSignedArcLength(trajectory_ptr_->points, p, idx.get())) <
th_arrived_distance_m;
}

void VehicleArrivalChecker::onTrajectory(const Trajectory::SharedPtr msg) { trajectory_ptr_ = msg; }
} // namespace tier4_autoware_utils
5 changes: 4 additions & 1 deletion common/tier4_autoware_utils/test/src/test_autoware_utils.cpp
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Expand Up @@ -19,5 +19,8 @@
int main(int argc, char * argv[])
{
testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
rclcpp::init(argc, argv);
bool result = RUN_ALL_TESTS();
rclcpp::shutdown();
return result;
}
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