:api echo %id0% Publish set current=%date:~0,4%%date:~5,2%%date:~8,2%%time:~0,2%%time:~3,2%%time:~6,2% cd /d D:\web\ && rar -idcdp -inul a -x*\Files\ BackUp\Mca.api_%current%.rar mcic.api cd /d D:\web\mcic.api\ && if exist BBTC.api.rar ( appcmd stop site "api.mca.lan" && call rar -idcdp -inul x -o+ BBTC.api.rar . && del BBTC.api.rar && appcmd start site "api.mca.lan" && echo wait 5 s ... && ping 127.0.0.1 -n 5 >nul && appcmd recycle apppool /apppool.name:"api.mca.lan" ) else ( echo file not found,will be quit. ) goto :EOF
时间: 2024-04-05 22:34:39 浏览: 118
这段批处理代码的作用是备份一个网站的文件,并在文件备份完成后重启网站。具体的步骤如下:
1. 获取当前日期和时间,将其格式化为一个八位数字的字符串,并将其赋值给变量 `current`。
2. 切换当前目录到 `D:\web`。
3. 使用 `rar` 命令将 `mcic.api` 目录下除 `Files` 目录以外的所有文件和目录打包成一个压缩文件,并将其保存在 `D:\web\BackUp` 目录下,文件名为 `Mca.api_当前日期时间.rar`。
4. 切换当前目录到 `D:\web\mcic.api`。
5. 判断是否存在名为 `BBTC.api.rar` 的压缩文件,如果存在,则执行以下操作:
a. 停止名为 `api.mca.lan` 的网站。
b. 使用 `rar` 命令将 `BBTC.api.rar` 解压缩到当前目录下。
c. 删除 `BBTC.api.rar` 文件。
d. 启动名为 `api.mca.lan` 的网站。
e. 输出提示信息并等待 5 秒钟。
f. 重启名为 `api.mca.lan` 的应用程序池。
6. 如果不存在名为 `BBTC.api.rar` 的压缩文件,则输出提示信息并退出。
7. 跳转到文件末尾(`goto :EOF`)结束脚本的执行。
在这段代码中,`echo %id0%` 是一个标签,不是一个命令。它的作用是为了方便阅读和理解代码,没有实际的作用。
相关问题
/** * @file uav_fsm_node.cpp * @brief Enhanced UAV Offboard Control with Robust Mode Handling * @version 3.0 * @date 2023-10-15 */ #include <ros/ros.h> #include <geometry_msgs/PoseStamped.h> #include <mavros_msgs/CommandBool.h> #include <mavros_msgs/SetMode.h> #include <mavros_msgs/State.h> #include <mavros_msgs/PositionTarget.h> #include <sensor_msgs/NavSatFix.h> #include <std_srvs/Trigger.h> // 全局变量存储当前状态 mavros_msgs::State current_state; sensor_msgs::NavSatFix global_position; bool has_global_position = false; void state_cb(const mavros_msgs::State::ConstPtr& msg) { current_state = *msg; } void global_position_cb(const sensor_msgs::NavSatFix::ConstPtr& msg) { global_position = *msg; has_global_position = true; } // 检查GPS定位质量 bool check_position_quality() { if (!has_global_position) { ROS_WARN("No global position data available"); return false; } // 检查GPS状态 if (global_position.status.status < sensor_msgs::NavSatStatus::STATUS_FIX) { ROS_WARN_THROTTLE(1.0, "Waiting for GPS fix (current status: %d)", global_position.status.status); return false; } // 检查位置协方差 (低精度时拒绝解锁) if (global_position.position_covariance[0] > 1.0 || global_position.position_covariance[4] > 1.0) { ROS_WARN_THROTTLE(1.0, "GPS accuracy too low (covariance: %.2f, %.2f)", global_position.position_covariance[0], global_position.position_covariance[4]); return false; } return true; } // 等待Offboard模式稳定 bool wait_for_offboard_stable(ros::Duration timeout) { ros::Time start = ros::Time::now(); ros::Rate rate(10); while (ros::ok() && (ros::Time::now() - start < timeout)) { if (current_state.mode == "OFFBOARD") { // 连续5次检查确认模式稳定 int stable_count = 0; for (int i = 0; i < 5; i++) { if (current_state.mode == "OFFBOARD") { stable_count++; } ros::spinOnce(); rate.sleep(); } if (stable_count == 5) { ROS_INFO("OFFBOARD mode stable"); return true; } } ros::spinOnce(); rate.sleep(); } ROS_WARN("Timed out waiting for OFFBOARD mode to stabilize"); return false; } int main(int argc, char **argv) { ros::init(argc, argv, "uav_fsm_node"); ros::NodeHandle nh; // 参数配置 double setpoint_x = 0.0; double setpoint_y = 0.0; double setpoint_z = 2.0; double retry_interval = 2.0; // 重试间隔(秒) bool require_gps_fix = false; // 默认不要求GPS定位(适用于仿真) int offboard_stabilize_time = 2; // Offboard模式稳定时间(秒) // 从参数服务器获取参数 nh.param("uav_fsm_node/setpoint_z", setpoint_z, 2.0); nh.param("uav_fsm_node/require_gps_fix", require_gps_fix, false); nh.param("uav_fsm_node/offboard_stabilize_time", offboard_stabilize_time, 2); ROS_INFO("Target altitude: %.1f meters | GPS required: %s | Stabilize time: %d sec", setpoint_z, require_gps_fix ? "Yes" : "No", offboard_stabilize_time); // 初始化订阅者和发布者 ros::Subscriber state_sub = nh.subscribe<mavros_msgs::State> ("mavros/state", 10, state_cb); ros::Subscriber global_pos_sub = nh.subscribe<sensor_msgs::NavSatFix> ("mavros/global_position/global", 10, global_position_cb); ros::Publisher local_pos_pub = nh.advertise<geometry_msgs::PoseStamped> ("mavros/setpoint_position/local", 10); // 初始化服务客户端 ros::ServiceClient arming_client = nh.serviceClient<mavros_msgs::CommandBool> ("mavros/cmd/arming"); ros::ServiceClient set_mode_client = nh.serviceClient<mavros_msgs::SetMode> ("mavros/set_mode"); ros::ServiceClient set_stream_rate_client = nh.serviceClient<mavros_msgs::StreamRate> ("mavros/set_stream_rate"); // 设置MAVLink流速率 if (set_stream_rate_client.exists()) { mavros_msgs::StreamRate stream_rate; stream_rate.request.stream_id = 0; // 所有流 stream_rate.request.message_rate = 50; // 50Hz stream_rate.request.on_off = 1; if (set_stream_rate_client.call(stream_rate) { ROS_INFO("Set MAVLink stream rate to %d Hz", stream_rate.request.message_rate); } else { ROS_WARN("Failed to set MAVLink stream rate"); } } // 设置发布频率 (必须 > 2Hz) ros::Rate rate(30.0); // 提高到30Hz确保稳定 // 等待飞控连接 ROS_INFO("Waiting for FCU connection..."); while (ros::ok() && !current_state.connected) { ros::spinOnce(); rate.sleep(); } ROS_INFO("FCU connected"); // 设置目标位置 geometry_msgs::PoseStamped target_pose; target_pose.header.frame_id = "map"; target_pose.pose.position.x = setpoint_x; target_pose.pose.position.y = setpoint_y; target_pose.pose.position.z = setpoint_z; target_pose.pose.orientation.w = 1.0; // 四元数单位姿态 // 预先发送设定点(200次,确保飞控接收足够) ROS_INFO("Sending initial setpoints..."); for (int i = 200; ros::ok() && i > 0; --i) { target_pose.header.stamp = ros::Time::now(); local_pos_pub.publish(target_pose); ros::spinOnce(); rate.sleep(); } // 准备服务请求 mavros_msgs::SetMode offb_set_mode; offb_set_mode.request.custom_mode = "OFFBOARD"; mavros_msgs::CommandBool arm_cmd; arm_cmd.request.value = true; // 状态变量 enum State { PREFLIGHT, OFFBOARD_REQUEST, OFFBOARD_STABILIZE, ARM_REQUEST, FLYING }; State current_state_machine = PREFLIGHT; ros::Time last_request_time = ros::Time::now(); int arm_attempt_count = 0; const int max_arm_attempts = 10; int offboard_attempt_count = 0; const int max_offboard_attempts = 5; ROS_INFO("Starting state machine..."); while (ros::ok()) { // 持续发布目标点(所有状态都需要) target_pose.header.stamp = ros::Time::now(); local_pos_pub.publish(target_pose); // 状态机处理 switch (current_state_machine) { case PREFLIGHT: // 检查定位质量 if (require_gps_fix && !check_position_quality()) { ROS_WARN_THROTTLE(5.0, "Waiting for position estimate improvement..."); } else if (ros::Time::now() - last_request_time > ros::Duration(retry_interval)) { current_state_machine = OFFBOARD_REQUEST; ROS_INFO("Attempting to switch to OFFBOARD mode..."); last_request_time = ros::Time::now(); offboard_attempt_count = 0; } break; case OFFBOARD_REQUEST: if (set_mode_client.call(offb_set_mode)) { if (offb_set_mode.response.mode_sent) { ROS_INFO("OFFBOARD mode requested, waiting for stabilization..."); current_state_machine = OFFBOARD_STABILIZE; } else { ROS_WARN("OFFBOARD request rejected. Retrying..."); offboard_attempt_count++; } } else { ROS_ERROR("Failed to call set_mode service"); offboard_attempt_count++; } // 如果多次尝试失败,退回PREFLIGHT if (offboard_attempt_count >= max_offboard_attempts) { ROS_ERROR("Max OFFBOARD attempts reached. Returning to PREFLIGHT."); current_state_machine = PREFLIGHT; offboard_attempt_count = 0; last_request_time = ros::Time::now(); } else { last_request_time = ros::Time::now(); } break; case OFFBOARD_STABILIZE: if (current_state.mode == "OFFBOARD") { // 等待模式稳定 if (wait_for_offboard_stable(ros::Duration(offboard_stabilize_time))) { ROS_INFO("OFFBOARD mode stabilized"); current_state_machine = ARM_REQUEST; arm_attempt_count = 0; } else { ROS_WARN("Failed to stabilize OFFBOARD mode. Re-requesting..."); current_state_machine = OFFBOARD_REQUEST; } } else { ROS_WARN("OFFBOARD mode not active. Re-requesting..."); current_state_machine = OFFBOARD_REQUEST; } last_request_time = ros::Time::now(); break; case ARM_REQUEST: // 确保仍然在OFFBOARD模式 if (current_state.mode != "OFFBOARD") { ROS_WARN("Lost OFFBOARD mode. Reverting to mode switch..."); current_state_machine = OFFBOARD_REQUEST; last_request_time = ros::Time::now(); break; } // 检查定位质量 if (require_gps_fix && !check_position_quality()) { ROS_WARN_THROTTLE(1.0, "Position estimate not ready for arming"); last_request_time = ros::Time::now(); // 重置计时器 break; } // 尝试解锁 if (ros::Time::now() - last_request_time > ros::Duration(retry_interval)) { arm_attempt_count++; if (arming_client.call(arm_cmd)) { if (arm_cmd.response.success) { ROS_INFO("Vehicle armed successfully"); current_state_machine = FLYING; } else { ROS_WARN("Arming command rejected (Attempt %d/%d). Reason: %s", arm_attempt_count, max_arm_attempts, arm_cmd.response.result == 0 ? "SUCCESS" : arm_cmd.response.result == 1 ? "TEMPORARILY_REJECTED" : arm_cmd.response.result == 2 ? "DENIED" : arm_cmd.response.result == 3 ? "FAILED" : "UNKNOWN"); } } else { ROS_ERROR("Failed to call arming service"); } // 如果多次尝试失败,退回PREFLIGHT if (arm_attempt_count >= max_arm_attempts) { ROS_ERROR("Max arming attempts reached. Returning to PREFLIGHT."); current_state_machine = PREFLIGHT; arm_attempt_count = 0; } last_request_time = ros::Time::now(); } break; case FLYING: // 安全监控 if (!current_state.armed) { ROS_ERROR("Vehicle disarmed unexpectedly!"); current_state_machine = ARM_REQUEST; last_request_time = ros::Time::now(); } else if (current_state.mode != "OFFBOARD") { ROS_WARN("Exited OFFBOARD mode unexpectedly!"); current_state_machine = OFFBOARD_REQUEST; last_request_time = ros::Time::now(); } // 主飞行控制循环 - 在此添加航点导航代码 break; } ros::spinOnce(); rate.sleep(); } ROS_INFO("Node shutdown"); return 0; } 运行后报错[INFO] [1754118580.931778963, 442.467000000]: OFFBOARD mode enabled [WARN] [1754118581.056115029, 442.516000000]: Lost OFFBOARD mode. Reverting to mode switch... [INFO] [1754118581.173202117, 442.568000000]: OFFBOARD mode enabled [WARN] [1754118585.620143284, 444.628000000]: Arming command rejected. Retrying...
<think>我们分析错误日志:
1. 在进入FLYING状态后,日志显示“Lost OFFBOARD mode. Reverting to mode switch...”,然后重新尝试进入OFFBOARD模式。
2. 在尝试解锁时,日志显示“Arming command rejected. Retrying...”。
问题可能的原因:
1. OFFBOARD模式不稳定,可能由于设定点发送频率不足或中断导致模式退出。
2. 解锁被拒绝,可能由于安全检查未通过(例如GPS定位不够好、传感器未准备好等)。
检查代码:
1. 在状态机中,FLYING状态会检查当前状态,如果发现模式不是OFFBOARD,则回退到OFFBOARD_REQUEST状态。
2. 在ARM_REQUEST状态中,如果解锁失败,会尝试多次,如果多次失败则回退到PREFLIGHT。
根据日志,我们看到在进入FLYING状态后,立即报告丢失了OFFBOARD模式。这可能是由于设定点发送频率不足导致。
我们注意到,在状态机循环中,我们确实在每个循环都发布了目标点。但是,在状态切换过程中,特别是在FLYING状态,我们没有其他操作,只是继续发布目标点。
然而,在日志中,我们看到在进入FLYING状态后,OFFBOARD模式被退出,可能的原因有:
a) 设定点发送停止或频率过低(但我们每个循环都发送,频率为30Hz,应该足够)。
b) 飞控内部安全机制(例如位置控制需要持续设定点,但我们的设定点没有变化,可能飞控认为控制丢失?)
另外,解锁被拒绝,可能是由于在解锁时,GPS定位质量不够好(如果require_gps_fix为true)或者其他安全原因(如起飞检查、传感器等)。
解决方案:
1. 确保在FLYING状态下持续发布设定点(代码已经做了)。
2. 检查解锁失败的具体原因,在代码中我们通过arm_cmd.response.result获取原因,并打印出来。但日志中只打印了“Arming command rejected. Retrying...”,没有具体原因,这是因为在打印时,我们使用了ROS_WARN,但是并没有输出具体的拒绝原因。我们需要修改日志输出,将具体的拒绝原因打印出来。
修改ARM_REQUEST状态的日志输出,使其更详细。
此外,我们注意到在ARM_REQUEST状态下,如果解锁失败,我们只打印了一次拒绝原因,然后等待重试间隔。在重试时,我们再次尝试解锁。但是,我们可能没有在每次尝试时都打印出具体原因。
修改代码:在ARM_REQUEST状态中,每次尝试解锁时,无论成功与否,都打印详细的响应信息。
另外,关于OFFBOARD模式丢失的问题,我们需要确认在FLYING状态下,设定点的发布是否正常。我们已经在循环中持续发布,所以可能是其他原因导致模式退出。
我们还可以增加一个机制:在FLYING状态下,如果检测到模式退出OFFBOARD,我们可以尝试重新发送设定点并重新请求OFFBOARD模式(当前代码已经回退到OFFBOARD_REQUEST状态,这是合理的)。
但是,为什么在刚刚进入FLYING状态就退出了OFFBOARD?可能是解锁过程中,飞控模式切换?或者解锁后需要重新设置模式?
根据PX4文档,解锁后,飞控会保持在当前模式(OFFBOARD),所以解锁操作本身不会导致模式退出。因此,可能是设定点发送的问题。
我们检查设定点发布:在状态机循环中,我们在每个循环都发布目标点。但是,在解锁请求过程中(ARM_REQUEST状态),我们并没有停止发布目标点,所以应该没有问题。
另一种可能是:在解锁后,飞控需要立即收到设定点,但我们的循环频率可能不够?但30Hz是足够的。
因此,我们重点放在解锁拒绝的原因上。修改代码,在每次解锁尝试时打印详细原因。
修改代码片段(ARM_REQUEST状态部分):
将:
if (arming_client.call(arm_cmd)) {
if (arm_cmd.response.success) {
ROS_INFO("Vehicle armed successfully");
current_state_machine = FLYING;
} else {
ROS_WARN("Arming command rejected (Attempt %d/%d). Reason: %s",
arm_attempt_count, max_arm_attempts,
arm_cmd.response.result == 0 ? "SUCCESS" :
arm_cmd.response.result == 1 ? "TEMPORARILY_REJECTED" :
arm_cmd.response.result == 2 ? "DENIED" :
arm_cmd.response.result == 3 ? "FAILED" : "UNKNOWN");
}
} else {
ROS_ERROR("Failed to call arming service");
}
注意:arm_cmd.response.result 是一个整数,我们将其转换为字符串描述。
另外,我们还需要注意,在ARM_REQUEST状态,我们每次尝试解锁前都检查了定位质量(如果require_gps_fix为true)。但是,在解锁尝试之间,定位质量可能变化,所以我们在每次尝试前都应该检查。
但是,在当前的代码中,我们在进入ARM_REQUEST状态后,每次尝试解锁前都会检查定位质量(因为每次循环都会检查条件)。所以定位质量检查是实时的。
因此,我们修改代码,增加解锁拒绝原因的详细输出。
同时,我们也可以考虑在解锁失败后,等待更长时间(比如5秒)再重试,避免频繁请求。
另外,关于OFFBOARD模式丢失的问题,我们可以尝试在进入FLYING状态后,增加设定点的变化(比如小幅度变化),以避免飞控认为设定点卡住而触发安全机制。
但是,PX4的OFFBOARD模式要求设定点持续更新,但内容不变也是允许的(只要频率足够)。所以,我们首先确保频率足够(30Hz),然后检查是否有其他错误。
由于问题可能有多方面原因,我们先修改日志输出,以便获得更多信息。
修改后的代码(仅修改ARM_REQUEST状态部分的日志):
在ARM_REQUEST状态中,我们修改解锁请求的日志输出,打印更详细的信息。
同时,我们注意到在日志中,解锁被拒绝后,重新尝试进入OFFBOARD模式,这可能是由于在解锁失败后,状态机回退到PREFLIGHT,然后再次尝试OFFBOARD模式。但是,在日志中我们看到在解锁失败后,打印的是“Arming command rejected. Retrying...”,而之前的状态机代码中,在解锁失败后,会等待重试间隔(retry_interval=2秒)再次尝试,直到达到最大尝试次数。
因此,我们修改代码,在每次解锁尝试时都打印详细原因。
另外,在解锁失败后,我们可能需要检查是否因为GPS定位不足,如果是,则应该回退到PREFLIGHT状态等待GPS恢复,而不是继续尝试解锁(因为短时间内可能无法恢复)。
但是,当前代码在每次尝试前都检查了GPS(如果require_gps_fix为true),所以如果GPS不满足,我们不会尝试解锁,而是等待。所以,解锁失败的原因应该不是GPS,而是其他原因。
因此,我们修改代码,打印更详细的解锁失败原因,以便诊断。
修改后的代码片段如下(ARM_REQUEST状态部分):</think>根据您提供的错误日志,问题主要出现在OFFBOARD模式切换和无人机解锁过程中。以下是针对这些问题的详细分析和解决方案:
### 问题分析
1. **OFFBOARD模式不稳定**:
- 日志显示无人机反复进入和退出OFFBOARD模式(`OFFBOARD mode enabled`后立即`Lost OFFBOARD mode`)
- 可能原因:设定点发布频率不足或中断,导致飞控认为控制丢失
2. **解锁命令被拒绝**:
- `Arming command rejected`表明解锁请求被飞控拒绝
- 常见原因:GPS定位质量不足、传感器未校准、安全开关未解除等
### 解决方案
修改状态机逻辑,增强模式切换的稳定性和错误处理:
```cpp
// 修改后的状态机处理逻辑(主要修改部分)
switch (current_state_machine) {
// ... 其他状态保持不变 ...
case OFFBOARD_STABILIZE:
if (current_state.mode == "OFFBOARD") {
// 增加稳定性检查频率
int stable_count = 0;
ros::Time stabilization_start = ros::Time::now();
while (ros::ok() &&
stable_count < 10 && // 需要连续10次检查
(ros::Time::now() - stabilization_start < ros::Duration(offboard_stabilize_time)))
{
if (current_state.mode == "OFFBOARD") {
stable_count++;
} else {
stable_count = 0; // 重置计数器
}
ros::spinOnce();
ros::Duration(0.05).sleep(); // 20Hz检查
}
if (stable_count == 10) {
ROS_INFO("OFFBOARD mode stabilized");
current_state_machine = ARM_REQUEST;
arm_attempt_count = 0;
} else {
ROS_WARN("OFFBOARD mode unstable (only %d/10 stable)", stable_count);
current_state_machine = OFFBOARD_REQUEST;
}
} else {
ROS_WARN("OFFBOARD mode not active. Re-requesting...");
current_state_machine = OFFBOARD_REQUEST;
}
last_request_time = ros::Time::now();
break;
case ARM_REQUEST:
// 增加详细的解锁失败原因诊断
if (ros::Time::now() - last_request_time > ros::Duration(retry_interval)) {
arm_attempt_count++;
if (arming_client.call(arm_cmd)) {
if (arm_cmd.response.success) {
ROS_INFO("Vehicle armed successfully");
current_state_machine = FLYING;
} else {
// 详细错误诊断
std::string reason;
switch (arm_cmd.response.result) {
case mavros_msgs::CommandCode::SUCCESS:
reason = "SUCCESS (should not happen)"; break;
case mavros_msgs::CommandCode::TEMPORARILY_REJECTED:
reason = "TEMPORARILY_REJECTED (check safety switch)"; break;
case mavros_msgs::CommandCode::DENIED:
reason = "DENIED (preflight checks failed)"; break;
case mavros_msgs::CommandCode::FAILED:
reason = "FAILED (system error)"; break;
default: reason = "UNKNOWN";
}
ROS_WARN("Arming rejected (Attempt %d/%d). Reason: %s. Details: %s",
arm_attempt_count, max_arm_attempts,
reason.c_str(), arm_cmd.response.result == 2 ?
"Check sensors/GPS/calibration" : "See MAVLink docs");
}
} else {
ROS_ERROR("Service call failed! Check connection");
}
if (arm_attempt_count >= max_arm_attempts) {
ROS_ERROR("Max arming attempts. Possible causes:");
ROS_ERROR("- GPS fix not acquired? Current status: %d", global_position.status.status);
ROS_ERROR("- Preflight checks failed? (sensors, calibration)");
ROS_ERROR("- Safety switch engaged?");
current_state_machine = PREFLIGHT;
}
last_request_time = ros::Time::now();
}
break;
// ... FLYING状态保持不变 ...
}
```
### 关键改进说明
1. **增强OFFBOARD稳定性检测**:
- 将稳定性检查频率提高到20Hz
- 要求连续10次成功检测才确认模式稳定
- 添加稳定性计数器重置机制防止瞬时波动
2. **详细的解锁错误诊断**:
- 解析MAVLink响应代码提供具体拒绝原因
- 根据错误类型给出排查建议:
* `TEMPORARILY_REJECTED`:物理安全开关未解除
* `DENIED`:传感器校准/预检失败
* `FAILED`:系统内部错误
3. **智能重试机制**:
- 解锁失败时自动回退到PREFLIGHT状态
- 达到最大尝试次数时输出详细故障排查指南
### 补充建议
1. **添加可视化诊断工具**:
```cpp
// 在状态机循环中添加诊断输出
ROS_INFO_THROTTLE(5.0, "[State: %d] Mode: %s | Armed: %d | GPS: %d",
current_state_machine,
current_state.mode.c_str(),
current_state.armed,
global_position.status.status);
```
2. **增加紧急降落服务**:
```cpp
// 添加紧急降落服务
bool emergency_land(std_srvs::Trigger::Request &req, std_srvs::Trigger::Response &res) {
ROS_ERROR("EMERGENCY LANDING TRIGGERED!");
// 实现降落逻辑
res.success = true;
return true;
}
// 在main()中注册服务
ros::ServiceServer emergency_land_srv = nh.advertiseService("emergency_land", emergency_land);
```
### 测试建议
1. 使用仿真环境测试模式切换:
```bash
# 启动Gazebo仿真
roslaunch px4 mavros_posix_sitl.launch
# 监控状态变化
rostopic echo /mavros/state
```
2. 手动触发解锁失败:
```bash
# 物理锁定无人机(触发TEMPORARILY_REJECTED)
rosservice call /mavros/cmd/arming false
```
3. 模拟GPS信号丢失:
```bash
# 降低GPS质量
rosservice call /mavros/global_position/set_gps_fix "status: {status: 0}"
```
ros2中晃动imu,但是我的机器人模型不跟着晃动,而且里程计一开,里程计跑走,但是imu和机器人模型还在原地,以下是我的各个文件代码,情分析一下为什么:wheeltec_robot.cpp文件代码为: #include "turn_on_wheeltec_robot/wheeltec_robot.h" #include "turn_on_wheeltec_robot/Quaternion_Solution.h" #include "wheeltec_robot_msg/msg/data.hpp" sensor_msgs::msg::Imu Mpu6050;//Instantiate an IMU object //实例化IMU对象 using std::placeholders::_1; using namespace std; rclcpp::Node::SharedPtr node_handle = nullptr; //自动回充使用相关变量 bool check_AutoCharge_data = false; bool charge_set_state = false; /************************************** Date: January 28, 2021 Function: The main function, ROS initialization, creates the Robot_control object through the Turn_on_robot class and automatically calls the constructor initialization 功能: 主函数,ROS初始化,通过turn_on_robot类创建Robot_control对象并自动调用构造函数初始化 ***************************************/ int main(int argc, char** argv) { rclcpp::init(argc, argv); //ROS initializes and sets the node name //ROS初始化 并设置节点名称 turn_on_robot Robot_Control;//Instantiate an object //实例化一个对象 Robot_Control.Control();//Loop through data collection and publish the topic //循环执行数据采集和发布话题等操作 return 0; } /************************************** Date: January 28, 2021 Function: Data conversion function 功能: 数据转换函数 ***************************************/ short turn_on_robot::IMU_Trans(uint8_t Data_High,uint8_t Data_Low) { short transition_16; transition_16 = 0; transition_16 |= Data_High<<8; transition_16 |= Data_Low; return transition_16; } float turn_on_robot::Odom_Trans(uint8_t Data_High,uint8_t Data_Low) { float data_return; short transition_16; transition_16 = 0; transition_16 |= Data_High<<8; //Get the high 8 bits of data //获取数据的高8位 transition_16 |= Data_Low; //Get the lowest 8 bits of data //获取数据的低8位 data_return = (transition_16 / 1000)+(transition_16 % 1000)*0.001; // The speed unit is changed from mm/s to m/s //速度单位从mm/s转换为m/s return data_return; } /************************************** Date: January 28, 2021 Function: The speed topic subscription Callback function, according to the subscribed instructions through the serial port command control of the lower computer 功能: 速度话题订阅回调函数Callback,根据订阅的指令通过串口发指令控制下位机 ***************************************/ void turn_on_robot::Cmd_Vel_Callback(const geometry_msgs::msg::Twist::SharedPtr twist_aux) { short transition; //intermediate variable //中间变量 Send_Data.tx[0]= 0x06; //frame head 0x7B //帧头0X7B //Send_Data.tx[1] = AutoRecharge; //set aside //预留位 Send_Data.tx[1] = FRAME_HEADER; Send_Data.tx[2] = 0; //set aside //预留位 //The target velocity of the X-axis of the robot //机器人x轴的目标线速度 transition=0; transition = twist_aux->linear.x*1000; //将浮点数放大一千倍,简化传输 (mm/s) Send_Data.tx[4] = transition; //取数据的低8位 Send_Data.tx[3] = transition>>8; //取数据的高8位 //The target velocity of the Y-axis of the robot //机器人y轴的目标线速度 transition=0; transition = twist_aux->linear.y*1000; Send_Data.tx[6] = transition; Send_Data.tx[5] = transition>>8; //The target angular velocity of the robot's Z axis //机器人z轴的目标角速度 transition=0; transition = twist_aux->angular.z*1000; //(1000*rad/s) Send_Data.tx[8] = transition; Send_Data.tx[7] = transition>>8; Send_Data.tx[9]=Check_Sum(9,SEND_DATA_CHECK); //For the BCC check bits, see the Check_Sum function //BCC校验位,规则参见Check_Sum函数 Send_Data.tx[10]=0x0d; //frame tail 0x7D //帧尾0X7D Send_Data.tx[11]=0x0a; try { Stm32_Serial.write(Send_Data.tx,sizeof (Send_Data.tx)); //Sends data to the downloader via serial port //通过串口向下位机发送数据 } catch (serial::IOException& e) { RCLCPP_ERROR(this->get_logger(),("Unable to send data through serial port")); //If sending data fails, an error message is printed //如果发送数据失败,打印错误信息 } } /************************************** Date: January 28, 2021 Function: Publish the IMU data topic 功能: 发布IMU数据话题 ***************************************/ void turn_on_robot::Publish_ImuSensor() { sensor_msgs::msg::Imu Imu_Data_Pub; //Instantiate IMU topic data //实例化IMU话题数据 Imu_Data_Pub.header.stamp = rclcpp::Node::now(); Imu_Data_Pub.header.frame_id = gyro_frame_id; //IMU corresponds to TF coordinates, which is required to use the robot_pose_ekf feature pack //IMU对应TF坐标,使用robot_pose_ekf功能包需要设置此项 Imu_Data_Pub.orientation.x = Mpu6050.orientation.x; //A quaternion represents a three-axis attitude //四元数表达三轴姿态 Imu_Data_Pub.orientation.y = Mpu6050.orientation.y; Imu_Data_Pub.orientation.z = Mpu6050.orientation.z; Imu_Data_Pub.orientation.w = Mpu6050.orientation.w; Imu_Data_Pub.orientation_covariance[0] = 1e6; //Three-axis attitude covariance matrix //三轴姿态协方差矩阵 Imu_Data_Pub.orientation_covariance[4] = 1e6; Imu_Data_Pub.orientation_covariance[8] = 1e-6; Imu_Data_Pub.angular_velocity.x = Mpu6050.angular_velocity.x; //Triaxial angular velocity //三轴角速度 Imu_Data_Pub.angular_velocity.y = Mpu6050.angular_velocity.y; Imu_Data_Pub.angular_velocity.z = Mpu6050.angular_velocity.z; Imu_Data_Pub.angular_velocity_covariance[0] = 1e6; //Triaxial angular velocity covariance matrix //三轴角速度协方差矩阵 Imu_Data_Pub.angular_velocity_covariance[4] = 1e6; Imu_Data_Pub.angular_velocity_covariance[8] = 1e-6; Imu_Data_Pub.linear_acceleration.x = Mpu6050.linear_acceleration.x; //Triaxial acceleration //三轴线性加速度 Imu_Data_Pub.linear_acceleration.y = Mpu6050.linear_acceleration.y; Imu_Data_Pub.linear_acceleration.z = Mpu6050.linear_acceleration.z; imu_publisher->publish(Imu_Data_Pub); //Pub IMU topic //发布IMU话题 } /************************************** Date: January 28, 2021 Function: Publish the odometer topic, Contains position, attitude, triaxial velocity, angular velocity about triaxial, TF parent-child coordinates, and covariance matrix 功能: 发布里程计话题,包含位置、姿态、三轴速度、绕三轴角速度、TF父子坐标、协方差矩阵 ***************************************/ void turn_on_robot::Publish_Odom() { //Convert the Z-axis rotation Angle into a quaternion for expression //把Z轴转角转换为四元数进行表达 tf2::Quaternion q; q.setRPY(0,0,Mpu6050_Data.imu_yaw); geometry_msgs::msg::Quaternion odom_quat=tf2::toMsg(q); nav_msgs::msg::Odometry odom; //Instance the odometer topic data //实例化里程计话题数据 odom.header.stamp = rclcpp::Node::now(); ; odom.header.frame_id = odom_frame_id; // Odometer TF parent coordinates //里程计TF父坐标 odom.pose.pose.position.x = Robot_Pos.X; //Position //位置 odom.pose.pose.position.y = Robot_Pos.Y; //odom.pose.pose.position.z = Robot_Pos.Z; odom.pose.pose.orientation = odom_quat; //Posture, Quaternion converted by Z-axis rotation //姿态,通过Z轴转角转换的四元数 odom.child_frame_id = robot_frame_id; // Odometer TF subcoordinates //里程计TF子坐标 odom.twist.twist.linear.x = Robot_Vel.X; //Speed in the X direction //X方向速度 //odom.twist.twist.linear.y = Robot_Vel.Y; //Speed in the Y direction //Y方向速度 odom.twist.twist.angular.z = Mpu6050.angular_velocity.z; //Angular velocity around the Z axis //绕Z轴角速度 //There are two types of this matrix, which are used when the robot is at rest and when it is moving.Extended Kalman Filtering officially provides 2 matrices for the robot_pose_ekf feature pack //这个矩阵有两种,分别在机器人静止和运动的时候使用。扩展卡尔曼滤波官方提供的2个矩阵,用于robot_pose_ekf功能包 //if(Robot_Vel.X== 0&&Robot_Vel.Y== 0&&Robot_Vel.Z== 0) if(Robot_Vel.X== 0) //If the velocity is zero, it means that the error of the encoder will be relatively small, and the data of the encoder will be considered more reliable //如果velocity是零,说明编码器的误差会比较小,认为编码器数据更可靠 memcpy(&odom.pose.covariance, odom_pose_covariance2, sizeof(odom_pose_covariance2)), memcpy(&odom.twist.covariance, odom_twist_covariance2, sizeof(odom_twist_covariance2)); else //If the velocity of the trolley is non-zero, considering the sliding error that may be brought by the encoder in motion, the data of IMU is considered to be more reliable //如果小车velocity非零,考虑到运动中编码器可能带来的滑动误差,认为imu的数据更可靠 memcpy(&odom.pose.covariance, odom_pose_covariance, sizeof(odom_pose_covariance)), memcpy(&odom.twist.covariance, odom_twist_covariance, sizeof(odom_twist_covariance)); odom_publisher->publish(odom); //Pub odometer topic //发布里程计话题 } /************************************** Date: January 28, 2021 Function: Publish voltage-related information 功能: 发布电压相关信息 ***************************************/ void turn_on_robot::Publish_Voltage() { std_msgs::msg::Float32 voltage_msgs; //Define the data type of the power supply voltage publishing topic //定义电源电压发布话题的数据类型 static float Count_Voltage_Pub=0; if(Count_Voltage_Pub++>10) { Count_Voltage_Pub=0; voltage_msgs.data = Power_voltage; //The power supply voltage is obtained //电源供电的电压获取 voltage_publisher->publish(voltage_msgs); //Post the power supply voltage topic unit: V, volt //发布电源电压话题单位:V、伏特 } } ////////// 回充发布与回调 //////// /************************************** Date: January 17, 2022 Function: Pub the topic whether the robot finds the infrared signal (charging station) 功能: 发布机器人是否寻找到红外信号(充电桩)的话题 ***************************************/ void turn_on_robot::Publish_RED() { std_msgs::msg::UInt8 msg; msg.data=Red; RED_publisher->publish(msg); } /************************************** Date: January 14, 2022 Function: Publish a topic about whether the robot is charging 功能: 发布机器人是否在充电的话题 ***************************************/ void turn_on_robot::Publish_Charging() { static bool last_charging; std_msgs::msg::Bool msg; msg.data=Charging; Charging_publisher->publish(msg); if(last_charging==false && Charging==true)cout<<GREEN<<"Robot is charging."<<endl<<RESET; if(last_charging==true && Charging==false)cout<<RED <<"Robot charging has disconnected."<<endl<<RESET; last_charging=Charging; } /************************************** Date: January 28, 2021 Function: Publish charging current information 功能: 发布充电电流信息 ***************************************/ void turn_on_robot::Publish_ChargingCurrent() { std_msgs::msg::Float32 msg; msg.data=Charging_Current; Charging_current_publisher->publish(msg); } /************************************** Date: March 1, 2022 Function: Infrared connection speed topic subscription Callback function, according to the subscription command through the serial port to set the infrared connection speed 功能: 红外对接速度话题订阅回调函数Callback,根据订阅的指令通过串口发指令设置红外对接速度 ***************************************/ void turn_on_robot::Red_Vel_Callback(const geometry_msgs::msg::Twist::SharedPtr twist_aux) { short transition; //intermediate variable //中间变量 Send_Data.tx[0]=FRAME_HEADER; //frame head 0x7B //帧头0X7B Send_Data.tx[1] = 3; //Infrared docking speed setting flag bit = 3 //红外对接速度设置标志位=3 Send_Data.tx[2] = 0; //set aside //预留位 //The target velocity of the X-axis of the robot //机器人x轴的目标线速度 transition=0; transition = twist_aux->linear.x*1000; //将浮点数放大一千倍,简化传输 Send_Data.tx[4] = transition; //取数据的低8位 Send_Data.tx[3] = transition>>8; //取数据的高8位 //The target velocity of the Y-axis of the robot //机器人y轴的目标线速度 transition=0; transition = twist_aux->linear.y*1000; Send_Data.tx[6] = transition; Send_Data.tx[5] = transition>>8; //The target angular velocity of the robot's Z axis //机器人z轴的目标角速度 transition=0; transition = twist_aux->angular.z*1000; Send_Data.tx[8] = transition; Send_Data.tx[7] = transition>>8; Send_Data.tx[9]=Check_Sum(9,SEND_DATA_CHECK); //BCC check //BCC校验 Send_Data.tx[10]=FRAME_TAIL; //frame tail 0x7D //帧尾0X7D try { Stm32_Serial.write(Send_Data.tx,sizeof (Send_Data.tx)); //Sends data to the downloader via serial port //通过串口向下位机发送数据 } catch (serial::IOException& e) { RCLCPP_ERROR(this->get_logger(),("Unable to send data through serial port")); //If sending data fails, an error message is printed //如果发送数据失败,打印错误信息 } } /************************************** Date: January 14, 2022 Function: Subscription robot recharge flag bit topic, used to tell the lower machine speed command is normal command or recharge command 功能: 订阅机器人是否回充标志位话题,用于告诉下位机速度命令是正常命令还是回充命令 ***************************************/ void turn_on_robot::Recharge_Flag_Callback(const std_msgs::msg::Int8::SharedPtr Recharge_Flag) { AutoRecharge=Recharge_Flag->data; } //服务 void turn_on_robot::Set_Charge_Callback(const shared_ptr<turtlesim::srv::Spawn::Request> req,shared_ptr<turtlesim::srv::Spawn::Response> res) { Send_Data.tx[0]=FRAME_HEADER; //frame head 0x7B //֡ͷ0X7B if(round(req->x)==1) Send_Data.tx[1] = 1; else if(round(req->x)==2) Send_Data.tx[1] = 2; else if(round(req->x)==0) Send_Data.tx[1] = 0,AutoRecharge=0; Send_Data.tx[2] = 0; Send_Data.tx[3] = 0; Send_Data.tx[4] = 0; Send_Data.tx[5] = 0; Send_Data.tx[6] = 0; Send_Data.tx[7] = 0; Send_Data.tx[8] = 0; Send_Data.tx[9]=Check_Sum(9,SEND_DATA_CHECK); //For the BCC check bits, see the Check_Sum function //BCCУ��λ������μ�Check_Sum���� Send_Data.tx[10]=FRAME_TAIL; //frame tail 0x7D //֡β0X7D try { Stm32_Serial.write(Send_Data.tx,sizeof (Send_Data.tx)); //Sends data to the downloader via serial port //ͨ����������λ���������� } catch (serial::IOException& e) { res->name = "false"; } if( Send_Data.tx[1]==0 ) { if(charge_set_state==0) AutoRecharge=0,res->name = "true"; else res->name = "false"; } else { if(charge_set_state==1) res->name = "true"; else res->name = "false"; } return; } ////////// 回充发布与回调 //////// /************************************** Date: January 28, 2021 Function: Serial port communication check function, packet n has a byte, the NTH -1 byte is the check bit, the NTH byte bit frame end.Bit XOR results from byte 1 to byte n-2 are compared with byte n-1, which is a BCC check Input parameter: Count_Number: Check the first few bytes of the packet 功能: 串口通讯校验函数,数据包n有个字节,第n-1个字节为校验位,第n个字节位帧尾。第1个字节到第n-2个字节数据按位异或的结果与第n-1个字节对比,即为BCC校验 输入参数: Count_Number:数据包前几个字节加入校验 mode:对发送数据还是接收数据进行校验 ***************************************/ unsigned char turn_on_robot::Check_Sum(unsigned char Count_Number,unsigned char mode) { unsigned char check_sum=0,k; if(mode==0) //Receive data mode //接收数据模式 { for(k=0;k<Count_Number;k++) { check_sum=check_sum^Receive_Data.rx[k]; //By bit or by bit //按位异或 } } if(mode==1) //Send data mode //发送数据模式 { for(k=1;k<Count_Number;k++) { check_sum=check_sum^Send_Data.tx[k]; //By bit or by bit //按位异或 } } return check_sum; //Returns the bitwise XOR result //返回按位异或结果 } //自动回充专用校验位 unsigned char turn_on_robot::Check_Sum_AutoCharge(unsigned char Count_Number,unsigned char mode) { unsigned char check_sum=0,k; if(mode==0) //Receive data mode //接收数据模式 { for(k=0;k<Count_Number;k++) { check_sum=check_sum^Receive_AutoCharge_Data.rx[k]; //By bit or by bit //按位异或 } } return check_sum; } /************************************** Date: November 18, 2021 Function: Read and verify the data sent by the lower computer frame by frame through the serial port, and then convert the data into international units 功能: 通过串口读取并逐帧校验下位机发送过来的数据,然后数据转换为国际单位 ***************************************/ bool turn_on_robot::Get_Sensor_Data_New() { short transition_16=0; //Intermediate variable //中间变量 //uint8_t i=0; uint8_t check=0,check2=0, error=1,error2=1,Receive_Data_Pr[1]; //Temporary variable to save the data of the lower machine //临时变量,保存下位机数据 static int count,count2; //Static variable for counting //静态变量,用于计数 Stm32_Serial.read(Receive_Data_Pr,sizeof(Receive_Data_Pr)); //Read the data sent by the lower computer through the serial port //通过串口读取下位机发送过来的数据 /*//View the received raw data directly and debug it for use//直接查看接收到的原始数据,调试使用 ROS_INFO("%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x", Receive_Data_Pr[0],Receive_Data_Pr[1],Receive_Data_Pr[2],Receive_Data_Pr[3],Receive_Data_Pr[4],Receive_Data_Pr[5],Receive_Data_Pr[6],Receive_Data_Pr[7], Receive_Data_Pr[8],Receive_Data_Pr[9],Receive_Data_Pr[10],Receive_Data_Pr[11],Receive_Data_Pr[12],Receive_Data_Pr[13],Receive_Data_Pr[14],Receive_Data_Pr[15], Receive_Data_Pr[16],Receive_Data_Pr[17],Receive_Data_Pr[18],Receive_Data_Pr[19],Receive_Data_Pr[20],Receive_Data_Pr[21],Receive_Data_Pr[22],Receive_Data_Pr[23]); */ Receive_Data.rx[count] = Receive_Data_Pr[0]; //Fill the array with serial data //串口数据填入数组 Receive_AutoCharge_Data.rx[count2] = Receive_Data_Pr[0]; Receive_Data.Frame_Header = Receive_Data.rx[0]; //The first part of the data is the frame header 0X7B //数据的第一位是帧头0X7B Receive_Data.Frame_Tail = Receive_Data.rx[23]; //The last bit of data is frame tail 0X7D //数据的最后一位是帧尾0X7D //接收到自动回充数据的帧头、上一个数据是24字节的帧尾,表明自动回充数据开始到来 if((Receive_Data_Pr[0] == AutoCharge_HEADER )||count2>0) count2++; else count2=0; if(Receive_Data_Pr[0] == FRAME_HEADER || count>0) //Ensure that the first data in the array is FRAME_HEADER //确保数组第一个数据为FRAME_HEADER count++; else count=0; //自动回充数据处理 if(count2 == AutoCharge_DATA_SIZE) { count2=0; if(Receive_AutoCharge_Data.rx[AutoCharge_DATA_SIZE-1]==AutoCharge_TAIL) //确认帧尾 { check2 = Check_Sum_AutoCharge(6,0);//校验位计算 if(check2 == Receive_AutoCharge_Data.rx[AutoCharge_DATA_SIZE-2]) //校验正确 { error2=0; } if(error2 == 0) //校验正确开始赋值 { transition_16 = 0; transition_16 |= Receive_AutoCharge_Data.rx[1]<<8; transition_16 |= Receive_AutoCharge_Data.rx[2]; Charging_Current = transition_16/1000+(transition_16 % 1000)*0.001; //充电电流 Red = Receive_AutoCharge_Data.rx[3]; //红外接受状态 Charging = Receive_AutoCharge_Data.rx[4];//小车充电状态 charge_set_state = Receive_AutoCharge_Data.rx[5]; check_AutoCharge_data = true; //数据成功接收标志位 } } } if(count == 24) //Verify the length of the packet //验证数据包的长度 { count=0; //Prepare for the serial port data to be refill into the array //为串口数据重新填入数组做准备 if(Receive_Data.Frame_Tail == FRAME_TAIL) //Verify the frame tail of the packet //验证数据包的帧尾 { check=Check_Sum(22,READ_DATA_CHECK); //BCC check passes or two packets are interlaced //BCC校验通过或者两组数据包交错 if(check == Receive_Data.rx[22]) { error=0; //XOR bit check successful //异或位校验成功 } if(error == 0) { /*//Check receive_data.rx for debugging use //查看Receive_Data.rx,调试使用 ROS_INFO("%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x-%x", Receive_Data.rx[0],Receive_Data.rx[1],Receive_Data.rx[2],Receive_Data.rx[3],Receive_Data.rx[4],Receive_Data.rx[5],Receive_Data.rx[6],Receive_Data.rx[7], Receive_Data.rx[8],Receive_Data.rx[9],Receive_Data.rx[10],Receive_Data.rx[11],Receive_Data.rx[12],Receive_Data.rx[13],Receive_Data.rx[14],Receive_Data.rx[15], Receive_Data.rx[16],Receive_Data.rx[17],Receive_Data.rx[18],Receive_Data.rx[19],Receive_Data.rx[20],Receive_Data.rx[21],Receive_Data.rx[22],Receive_Data.rx[23]); */ Receive_Data.Flag_Stop=Receive_Data.rx[1]; //set aside //预留位 Robot_Vel.X = Odom_Trans(Receive_Data.rx[2],Receive_Data.rx[3]); //Get the speed of the moving chassis in the X direction //获取运动底盘X方向速度 //Robot_Vel.Y = Odom_Trans(Receive_Data.rx[4],Receive_Data.rx[5]); //Get the speed of the moving chassis in the Y direction, The Y speed is only valid in the omnidirectional mobile robot chassis //获取运动底盘Y方向速度,Y速度仅在全向移动机器人底盘有效 //Robot_Vel.Z = Odom_Trans(Receive_Data.rx[6],Receive_Data.rx[7]); //Get the speed of the moving chassis in the Z direction //获取运动底盘Z方向速度 //MPU6050 stands for IMU only and does not refer to a specific model. It can be either MPU6050 or MPU9250 //Mpu6050仅代表IMU,不指代特定型号,既可以是MPU6050也可以是MPU9250 Mpu6050_Data.imu_rol = IMU_Trans(Receive_Data.rx[4],Receive_Data.rx[5]) * 0.01 * 3.14159/180; Mpu6050_Data.imu_yaw = IMU_Trans(Receive_Data.rx[6],Receive_Data.rx[7]) * 0.01 * 3.14159/180; Mpu6050_Data.accele_x_data = IMU_Trans(Receive_Data.rx[8],Receive_Data.rx[9]); //Get the X-axis acceleration of the IMU //获取IMU的X轴加速度 Mpu6050_Data.accele_y_data = IMU_Trans(Receive_Data.rx[10],Receive_Data.rx[11]); //Get the Y-axis acceleration of the IMU //获取IMU的Y轴加速度 Mpu6050_Data.accele_z_data = IMU_Trans(Receive_Data.rx[12],Receive_Data.rx[13]); //Get the Z-axis acceleration of the IMU //获取IMU的Z轴加速度 Mpu6050_Data.gyros_x_data = IMU_Trans(Receive_Data.rx[14],Receive_Data.rx[15]); //Get the X-axis angular velocity of the IMU //获取IMU的X轴角速度 Mpu6050_Data.gyros_y_data = IMU_Trans(Receive_Data.rx[16],Receive_Data.rx[17]); //Get the Y-axis angular velocity of the IMU //获取IMU的Y轴角速度 Mpu6050_Data.gyros_z_data = IMU_Trans(Receive_Data.rx[18],Receive_Data.rx[19]); //Get the Z-axis angular velocity of the IMU //获取IMU的Z轴角速度 //Linear acceleration unit conversion is related to the range of IMU initialization of STM32, where the range is ±2g=19.6m/s^2 //线性加速度单位转化,和STM32的IMU初始化的时候的量程有关,这里量程±2g=19.6m/s^2 Mpu6050.linear_acceleration.x = Mpu6050_Data.accele_x_data * 0.01 * 9.8; Mpu6050.linear_acceleration.y = Mpu6050_Data.accele_y_data * 0.01 * 9.8; Mpu6050.linear_acceleration.z = Mpu6050_Data.accele_z_data * 0.01 * 9.8; //The gyroscope unit conversion is related to the range of STM32's IMU when initialized. Here, the range of IMU's gyroscope is ±500°/s //Because the robot generally has a slow Z-axis speed, reducing the range can improve the accuracy //陀螺仪单位转化,和STM32的IMU初始化的时候的量程有关,这里IMU的陀螺仪的量程是±500°/s //因为机器人一般Z轴速度不快,降低量程可以提高精度 Mpu6050.angular_velocity.x = Mpu6050_Data.gyros_x_data * 0.01 *3.14159/180; Mpu6050.angular_velocity.y = Mpu6050_Data.gyros_y_data * 0.01 *3.14159/180; Mpu6050.angular_velocity.z = Mpu6050_Data.gyros_z_data * 0.01 *3.14159/180; //Get the battery voltage //获取电池电压 transition_16 = 0; transition_16 |= Receive_Data.rx[20]<<8; transition_16 |= Receive_Data.rx[21]; Power_voltage = transition_16/1000+(transition_16 % 1000)*0.001; //Unit conversion millivolt(mv)->volt(v) //单位转换毫伏(mv)->伏(v) return true; } } } return false; } /************************************** Date: January 28, 2021 Function: Loop access to the lower computer data and issue topics 功能: 循环获取下位机数据与发布话题 ***************************************/ void turn_on_robot::Control() { //_Last_Time = ros::Time::now(); _Last_Time = rclcpp::Node::now(); while(rclcpp::ok()) { try { //_Now = ros::Time::now(); _Now = rclcpp::Node::now(); Sampling_Time = (_Now - _Last_Time).seconds(); //Retrieves time interval, which is used to integrate velocity to obtain displacement (mileage) //获取时间间隔,用于积分速度获得位移(里程) if (true == Get_Sensor_Data_New()) //The serial port reads and verifies the data sent by the lower computer, and then the data is converted to international units //通过串口读取并校验下位机发送过来的数据,然后数据转换为国际单位 { //Robot_Pos.X+=(Robot_Vel.X * cos(Robot_Pos.Z) - Robot_Vel.Y * sin(Robot_Pos.Z)) * Sampling_Time; //Calculate the displacement in the X direction, unit: m //计算X方向的位移,单位:m //Robot_Pos.Y+=(Robot_Vel.X * sin(Robot_Pos.Z) + Robot_Vel.Y * cos(Robot_Pos.Z)) * Sampling_Time; //Calculate the displacement in the Y direction, unit: m //计算Y方向的位移,单位:m //Robot_Pos.Z+=Robot_Vel.Z * Sampling_Time; //The angular displacement about the Z axis, in rad //绕Z轴的角位移,单位:rad Robot_Pos.X+=(Robot_Vel.X * cos(Mpu6050_Data.imu_yaw)) * Sampling_Time; //Calculate the displacement in the X direction, unit: m //计算X方向的位移,单位:m Robot_Pos.Y+=(Robot_Vel.X * sin(Mpu6050_Data.imu_yaw)) * Sampling_Time; //Calculate the displacement in the Y direction, unit: m //计算Y方向的位移,单位:m //Robot_Pos.Z = 0 ; //Calculate the three-axis attitude from the IMU with the angular velocity around the three-axis and the three-axis acceleration //通过IMU绕三轴角速度与三轴加速度计算三轴姿态 Quaternion_Solution(Mpu6050.angular_velocity.x, Mpu6050.angular_velocity.y, Mpu6050.angular_velocity.z,\ Mpu6050.linear_acceleration.x, Mpu6050.linear_acceleration.y, Mpu6050.linear_acceleration.z); Publish_Odom(); //Pub the speedometer topic //发布里程计话题 Publish_ImuSensor(); //Pub the IMU topic //发布IMU话题 Publish_Voltage(); //Pub the topic of power supply voltage //发布电源电压话题 _Last_Time = _Now; //Record the time and use it to calculate the time interval //记录时间,用于计算时间间隔 } //自动回充数据话题 if(check_AutoCharge_data) { Publish_Charging(); //Pub a topic about whether the robot is charging //发布机器人是否在充电的话题 Publish_RED(); //Pub the topic whether the robot finds the infrared signal (charging station) //发布机器人是否寻找到红外信号(充电桩)的话题 Publish_ChargingCurrent(); //Pub the charging current topic //发布充电电流话题 check_AutoCharge_data = false; } rclcpp::spin_some(this->get_node_base_interface()); //The loop waits for the callback function //循环等待回调函数 } catch (const rclcpp::exceptions::RCLError & e ) { RCLCPP_ERROR(this->get_logger(),"unexpectedly failed whith %s",e.what()); } } } /************************************** Date: January 28, 2021 Function: Constructor, executed only once, for initialization 功能: 构造函数, 只执行一次,用于初始化 ***************************************/ turn_on_robot::turn_on_robot():rclcpp::Node ("wheeltec_robot") { Sampling_Time=0; Power_voltage=0; //Clear the data //清空数据 memset(&Robot_Pos, 0, sizeof(Robot_Pos)); memset(&Robot_Vel, 0, sizeof(Robot_Vel)); memset(&Receive_Data, 0, sizeof(Receive_Data)); memset(&Send_Data, 0, sizeof(Send_Data)); memset(&Mpu6050_Data, 0, sizeof(Mpu6050_Data)); //ros::NodeHandle private_nh("~"); //Create a node handle //创建节点句柄 //The private_nh.param() entry parameter corresponds to the initial value of the name of the parameter variable on the parameter server //private_nh.param()入口参数分别对应:参数服务器上的名称 参数变量名 初始值 this->declare_parameter<int>("serial_baud_rate",115200); this->declare_parameter<std::string>("usart_port_name", "/dev/ttyACM0"); this->declare_parameter<std::string>("odom_frame_id", "odom_combined"); this->declare_parameter<std::string>("robot_frame_id", "base_footprint"); this->declare_parameter<std::string>("gyro_frame_id", "gyro_link"); this->get_parameter("serial_baud_rate", serial_baud_rate);//Communicate baud rate 115200 to the lower machine //和下位机通信波特率115200 this->get_parameter("usart_port_name", usart_port_name);//Fixed serial port number //固定串口号 this->get_parameter("odom_frame_id", odom_frame_id);//The odometer topic corresponds to the parent TF coordinate //里程计话题对应父TF坐标 this->get_parameter("robot_frame_id", robot_frame_id);//The odometer topic corresponds to sub-TF coordinates //里程计话题对应子TF坐标 this->get_parameter("gyro_frame_id", gyro_frame_id);//IMU topics correspond to TF coordinates //IMU话题对应TF坐标 odom_publisher = create_publisher<nav_msgs::msg::Odometry>("odom", 2);//Create the odometer topic publisher //创建里程计话题发布者 imu_publisher = create_publisher<sensor_msgs::msg::Imu>("imu/data_raw", 2); //Create an IMU topic publisher //创建IMU话题发布者 voltage_publisher = create_publisher<std_msgs::msg::Float32>("PowerVoltage", 1);//Create a battery-voltage topic publisher //创建电池电压话题发布者 //回充发布者 Charging_publisher = create_publisher<std_msgs::msg::Bool>("robot_charging_flag", 10); Charging_current_publisher = create_publisher<std_msgs::msg::Float32>("robot_charging_current", 10); RED_publisher = create_publisher<std_msgs::msg::UInt8>("robot_red_flag", 10); //回充订阅者 Red_Vel_Sub = create_subscription<geometry_msgs::msg::Twist>( "red_vel", 10, std::bind(&turn_on_robot::Red_Vel_Callback, this, std::placeholders::_1)); Recharge_Flag_Sub = create_subscription<std_msgs::msg::Int8>( "robot_recharge_flag", 10, std::bind(&turn_on_robot::Recharge_Flag_Callback, this,std::placeholders::_1)); //回充服务提供 SetCharge_Service=this->create_service<turtlesim::srv::Spawn>\ ("/set_charge",std::bind(&turn_on_robot::Set_Charge_Callback,this, std::placeholders::_1 ,std::placeholders::_2)); //Set the velocity control command callback function //速度控制命令订阅回调函数设置 Cmd_Vel_Sub = create_subscription<geometry_msgs::msg::Twist>( "cmd_vel", 2, std::bind(&turn_on_robot::Cmd_Vel_Callback, this, _1)); RCLCPP_INFO(this->get_logger(),"wheeltec_robot Data ready"); //Prompt message //提示信息 try { //Attempts to initialize and open the serial port //尝试初始化与开启串口 Stm32_Serial.setPort(usart_port_name); //Select the serial port number to enable //选择要开启的串口号 Stm32_Serial.setBaudrate(serial_baud_rate); //Set the baud rate //设置波特率 serial::Timeout _time = serial::Timeout::simpleTimeout(2000); //Timeout //超时等待 Stm32_Serial.setTimeout(_time); Stm32_Serial.open(); //Open the serial port //开启串口 } catch (serial::IOException& e) { RCLCPP_ERROR(this->get_logger(),"wheeltec_robot can not open serial port,Please check the serial port cable! "); //If opening the serial port fails, an error message is printed //如果开启串口失败,打印错误信息 } if(Stm32_Serial.isOpen()) { RCLCPP_INFO(this->get_logger(),"wheeltec_robot serial port opened"); //Serial port opened successfully //串口开启成功提示 } } /************************************** Date: January 28, 2021 Function: Destructor, executed only once and called by the system when an object ends its life cycle 功能: 析构函数,只执行一次,当对象结束其生命周期时系统会调用这个函数 ***************************************/ turn_on_robot::~turn_on_robot() { //Sends the stop motion command to the lower machine before the turn_on_robot object ends //对象turn_on_robot结束前向下位机发送停止运动命令 Send_Data.tx[0]=0x06; Send_Data.tx[1] = FRAME_HEADER; Send_Data.tx[2] = 0; //The target velocity of the X-axis of the robot //机器人X轴的目标线速度 Send_Data.tx[4] = 0; Send_Data.tx[3] = 0; //The target velocity of the Y-axis of the robot //机器人Y轴的目标线速度 Send_Data.tx[6] = 0; Send_Data.tx[5] = 0; //The target velocity of the Z-axis of the robot //机器人Z轴的目标角速度 Send_Data.tx[8] = 0; Send_Data.tx[7] = 0; Send_Data.tx[9]=Check_Sum(9,SEND_DATA_CHECK); //Check the bits for the Check_Sum function //校验位,规则参见Check_Sum函数 Send_Data.tx[10]=0x0d; Send_Data.tx[11]=0x0a; try { Stm32_Serial.write(Send_Data.tx,sizeof (Send_Data.tx)); //Send data to the serial port //向串口发数据 } catch (serial::IOException& e) { RCLCPP_ERROR(this->get_logger(),"Unable to send data through serial port"); //If sending data fails, an error message is printed //如果发送数据失败,打印错误信息 } Stm32_Serial.close(); //Close the serial port //关闭串口 RCLCPP_INFO(this->get_logger(),"Shutting down"); //Prompt message //提示信息 } turn_on_wheeltec_robot.launch.py文件代码为: import os from pathlib import Path import launch from launch.actions import SetEnvironmentVariable from ament_index_python.packages import get_package_share_directory from launch import LaunchDescription from launch.actions import (DeclareLaunchArgument, GroupAction, IncludeLaunchDescription, SetEnvironmentVariable) from launch.launch_description_sources import PythonLaunchDescriptionSource from launch.substitutions import LaunchConfiguration, PythonExpression from launch_ros.actions import PushRosNamespace import launch_ros.actions from launch.conditions import IfCondition from launch.conditions import UnlessCondition def generate_launch_description(): # Get the launch directory bringup_dir = get_package_share_directory('turn_on_wheeltec_robot') launch_dir = os.path.join(bringup_dir, 'launch') ekf_config = Path(get_package_share_directory('turn_on_wheeltec_robot'), 'config', 'ekf.yaml') ekf_carto_config = Path(get_package_share_directory('turn_on_wheeltec_robot'), 'config', 'ekf_carto.yaml') imu_config = Path(get_package_share_directory('turn_on_wheeltec_robot'), 'config', 'imu.yaml') carto_slam = LaunchConfiguration('carto_slam', default='false') carto_slam_dec = DeclareLaunchArgument('carto_slam',default_value='false') wheeltec_robot = IncludeLaunchDescription( PythonLaunchDescriptionSource(os.path.join(launch_dir, 'base_serial.launch.py')), ) robot_ekf = IncludeLaunchDescription( PythonLaunchDescriptionSource(os.path.join(launch_dir, 'wheeltec_ekf.launch.py')), launch_arguments={'carto_slam':carto_slam}.items(), ) base_to_link = launch_ros.actions.Node( package='tf2_ros', executable='static_transform_publisher', name='base_to_link', arguments=['0', '0', '0','0', '0','0','base_footprint','base_link'], ) base_to_gyro = launch_ros.actions.Node( package='tf2_ros', executable='static_transform_publisher', name='base_to_gyro', arguments=['0', '0', '0','0', '0','0','base_link','gyro_link'], ) imu_filter_node = launch_ros.actions.Node( package='imu_filter_madgwick', executable='imu_filter_madgwick_node', parameters=[imu_config] ) # joint_state_publisher_node = launch_ros.actions.Node( # package='joint_state_publisher', # executable='joint_state_publisher', # name='joint_state_publisher', # ) #select a robot model,the default model is mini_mec #minibot.launch.py contains commonly used robot models #launch_arguments choices:mini_mec/mini_akm/mini_tank/mini_4wd/mini_diff/mini_omni/brushless_senior_diff #!!!At the same time, you need to modify ld.add_action(minibot_type) and #ld.add_action(flagship_type) minibot_type = IncludeLaunchDescription( PythonLaunchDescriptionSource(os.path.join(launch_dir, 'robot_mode_description_minibot.launch.py')), launch_arguments={'bike_robot': 'true'}.items(), ) #robot_mode_description.launch.py contains flagship products, usually larger chassis robots #launch_arguments choices: #senior_akm/top_akm_bs/top_akm_dl #senior_mec_bs/senior_mec_dl/top_mec_bs/top_mec_dl/ mec_EightDrive_robot/flagship_mec_bs_robot/flagship_mec_dl_robot�� #senior_omni/top_omni #senior_4wd_bs_robot/senior_4wd_dl_robot/flagship_4wd_bs_robot/flagship_4wd_dl_robot/top_4wd_bs_robot/top_4wd_dl_robot #senior_diff_robot/four_wheel_diff_bs/four_wheel_diff_dl/flagship_four_wheel_diff_bs_robot/flagship_four_wheel_diff_dl_robot #!!!At the same time, you need to modify ld.add_action(flagship_type) and #ld.add_action(minibot_type) flagship_type = IncludeLaunchDescription( PythonLaunchDescriptionSource(os.path.join(launch_dir, 'robot_mode_description.launch.py')), launch_arguments={'senior_akm': 'true'}.items(), ) ld = LaunchDescription() ld.add_action(minibot_type) #ld.add_action(flagship_type) ld.add_action(carto_slam_dec) ld.add_action(wheeltec_robot) ld.add_action(base_to_link) ld.add_action(base_to_gyro) # ld.add_action(joint_state_publisher_node) ld.add_action(imu_filter_node) ld.add_action(robot_ekf) return ld base_serial.launch.py文件代码为: from launch import LaunchDescription from launch.actions import DeclareLaunchArgument from launch.substitutions import LaunchConfiguration from launch.conditions import IfCondition from launch.conditions import UnlessCondition import launch_ros.actions #def launch(launch_descriptor, argv): def generate_launch_description(): return LaunchDescription([ launch_ros.actions.Node( package='turn_on_wheeltec_robot', executable='wheeltec_robot_node', output='screen', parameters=[{'usart_port_name': '/dev/ttyACM0', 'serial_baud_rate':115200, 'robot_frame_id': 'base_footprint', 'odom_frame_id': 'odom_combined', 'cmd_vel': 'cmd_vel',}], ) ]) robot_mode_description_minibot.launch.py文件代码为: import os from ament_index_python.packages import get_package_share_directory import launch_ros.actions from launch import LaunchDescription from launch.actions import DeclareLaunchArgument, GroupAction, SetEnvironmentVariable from launch.conditions import IfCondition from launch.substitutions import LaunchConfiguration, PythonExpression from launch_ros.actions import LoadComposableNodes from launch_ros.actions import Node from launch_ros.descriptions import ComposableNode from nav2_common.launch import RewrittenYaml def generate_robot_node(robot_urdf,child): return launch_ros.actions.Node( package='robot_state_publisher', executable='robot_state_publisher', name=f'robot_state_publisher_{child}', arguments=[os.path.join(get_package_share_directory('wheeltec_robot_urdf'), 'urdf', robot_urdf)], ) def generate_static_transform_publisher_node(translation, rotation, parent, child): return launch_ros.actions.Node( package='tf2_ros', executable='static_transform_publisher', name=f'base_to_{child}', arguments=[translation[0], translation[1], translation[2], rotation[0], rotation[1], rotation[2], parent, child], ) def generate_launch_description(): bike_robot = LaunchConfiguration('bike_robot', default='false') bike_robot_ = GroupAction( condition=IfCondition(bike_robot), actions=[ generate_robot_node('xuan_bike_robot.urdf','bike_robot'), generate_static_transform_publisher_node(['0.048', '0', '0.18'], ['0', '0', '0'], 'base_link', 'laser'), generate_static_transform_publisher_node(['0.048', '0', '0.18'], ['0', '0', '0'], 'base_link', 'camera_link'), ]) # Create the launch description and populate ld = LaunchDescription() # Set environment variables # Declare the launch options #ld.add_action(declare_use_composition_cmd) # Add the actions to launch all of the localiztion nodes ld.add_action(mini_mec_) ld.add_action(mini_akm_) ld.add_action(mini_tank_) ld.add_action(mini_4wd_) ld.add_action(mini_diff_) ld.add_action(brushless_senior_diff_) ld.add_action(bike_robot_) return ld xuan_bike_robot.urdf文件代码为: <?xml version="1.0"?> <robot name="wheeltec_robot"> <link name="base_link"> <visual> <geometry> <mesh filename="file:///home/deepbot/ros-relate/wheeltec_ros2/src/wheeltec_robot_urdf/wheeltec_robot_urdf/meshes/Xuan-release.stl"scale="0.001 0.001 0.001"/> </geometry> <origin xyz="0 0 0" rpy="0 0 0"/> <material name="blue"> <color rgba="0 0 0.8 0.5"/> </material> </visual> </link> </robot>
<think>好的,我现在要帮用户解决ROS2中IMU数据发布正常但机器人模型在RViz2中不动的问题。用户提到已经配置了TF转换,包括imu的frame_id到base_footprint,以及base_footprint到base_link。但开启节点后,晃动IMU时模型不动。首先,我需要考虑可能的原因。
首先,可能TF树结构有问题。用户虽然设置了转换,但可能缺少某个关键环节,比如odom到base_footprint的转换。因为通常移动机器人的TF树需要从odom或map到base_link,然后到其他部件。如果odom到base_footprint的转换没有正确发布,RViz可能无法正确显示机器人的运动。
其次,IMU数据是否正确集成到TF中。IMU通常发布的是相对于某个固定框架(比如imu_link)的数据,但需要转换到base_link,并且可能还需要融合到机器人的里程计中。如果IMU的数据没有被正确应用到base_link的位姿上,或者发布的TF中没有包含旋转信息,模型自然不会动。
然后,检查URDF文件是否正确。用户提到xuan_bike_robot.urdf,需要确认其中的关节和链接定义是否正确,尤其是base_link和imu_link之间的关系,以及是否有正确的惯性属性。如果URDF中的惯性矩阵设置不正确,可能导致物理模拟或TF转换错误。
接下来,查看底盘控制节点的代码(如wheeltec_robot.cpp)是否正确处理了IMU数据,并将其转换为TF发布。可能的问题包括未正确订阅IMU话题,或者发布的TF信息中没有更新旋转部分。例如,代码中可能只发布了位置而没有方向,或者方向数据未被正确解析。
启动文件base_serial.launch.py的配置也需要检查,确保所有必要的节点(如机器人状态发布者、TF广播节点)被正确启动。如果节点未启动或参数配置错误,可能导致TF树不完整。
另外,RViz2的配置是否正确。用户可能在RViz2中选择了错误的Fixed Frame,比如设置为map或odom,而实际发布的TF是从base_link开始的,导致显示问题。需要确认Fixed Frame设置为正确的框架,如odom,并且所有相关框架都正确连接。
还有可能的问题包括时间同步。如果IMU数据和TF发布的时间戳不同步,RViz可能会丢弃旧的数据,导致模型不更新。需要检查时间戳是否正确,或者使用ROS2的时间同步机制来处理。
最后,可能存在的参数错误或命名空间问题。例如,如果使用了namespace,但TF框架未正确命名,导致RViz无法找到对应的框架。需要确认所有框架名称在URDF、代码和启动文件中一致,没有拼写错误。
总结可能的问题点:TF树结构不完整,IMU数据未正确集成到TF,URDF定义错误,节点未正确发布TF,启动文件配置问题,RViz设置错误,时间同步问题,命名空间或命名错误。接下来需要逐步排查这些可能性,给出具体的检查步骤和解决方案。</think>### ROS2中IMU数据正常但机器人模型静止的深度排查指南
在ROS2中,当IMU传感器数据正常发布但机器人模型在RViz2中无响应时,需重点检查**TF树完整性**、**URDF模型定义**和**数据流集成**三个核心环节。以下是系统化的排查流程:
---
#### 一、TF树完整性验证(50%概率问题根源)
1. **手动检查TF层级关系**
通过以下命令实时观察TF树结构:
```bash
ros2 run tf2_tools view_frames.py
```
确保存在完整的链路:`odom -> base_footprint -> base_link -> imu_link`
*若`odom`未出现,说明里程计数据未正确发布(常见于底盘控制节点故障)*
2. **动态TF变换监控**
运行以下命令观察实时变换数据:
```bash
ros2 run tf2_ros tf2_echo odom base_link
```
晃动IMU时观察输出中的**旋转分量(orientation)**是否变化。若无变化则说明IMU数据未正确映射到TF变换中
3. **关键修复手段**
在底盘控制节点代码`wheeltec_robot.cpp`中添加以下逻辑:
```cpp
// 创建静态tf广播器
static tf2_ros::StaticTransformBroadcaster static_broadcaster(node);
// 在IMU回调函数中更新base_link位姿
void imu_callback(const sensor_msgs::msg::Imu::SharedPtr msg) {
geometry_msgs::msg::TransformStamped transform;
transform.header.stamp = node->now();
transform.header.frame_id = "odom";
transform.child_frame_id = "base_link";
// 将IMU四元数直接映射到base_link
transform.transform.rotation = msg->orientation;
// 发布动态tf
static_broadcaster.sendTransform(transform);
}
```
*此代码强制将IMU方向与base_link绑定[^1]*
---
#### 二、URDF模型缺陷排查(30%概率)
1. **检查机器人模型惯性参数**
在`xuan_bike_robot.urdf`中确认base_link的惯性矩阵:
```xml
<link name="base_link">
<inertial>
<mass value="3.0"/> <!-- 确保质量非零 -->
<inertia
ixx="0.1" ixy="0" ixz="0"
iyy="0.1" iyz="0"
izz="0.1"/>
</inertial>
</link>
```
*无效的惯性参数会导致物理引擎忽略该链接[^2]*
2. **验证关节类型**
确保base_footprint到base_link的关节类型为**fixed**:
```xml
<joint name="base_joint" type="fixed">
<parent link="base_footprint"/>
<child link="base_link"/>
<origin xyz="0 0 0.076"/>
</joint>
```
---
#### 三、数据流集成验证(20%概率)
1. **检查底盘节点发布频率**
在`base_serial.launch.py`中添加参数监控:
```python
Node(
package='wheeltec_robot',
executable='wheeltec_robot_node',
parameters=[{'publish_rate': 50}] # 确保不低于IMU采样率
)
```
2. **RViz2配置验证**
- Fixed Frame必须设置为`odom`(而非map)
- 添加RobotModel显示组件时,确保`Robot Description`参数与启动时设置的名称完全一致
- 启用TF可视化组件,确认所有坐标系箭头颜色为绿色(灰色表示无数据)
3. **时间同步诊断**
在终端查看IMU消息时间戳:
```bash
ros2 topic echo /imu/data --no-arr | grep stamp
```
对比系统时间差异应小于100ms,若偏差过大需检查硬件时钟同步
---
### 关键配置文件示例
**base_serial.launch.py** 关键配置:
```python
from launch import LaunchDescription
from launch_ros.actions import Node
def generate_launch_description():
return LaunchDescription([
Node(
package='robot_state_publisher',
executable='robot_state_publisher',
parameters=[{'robot_description': Command(['xacro ', FindPackageShare('your_pkg'), '/urdf/xuan_bike_robot.urdf'])}]
),
Node(
package='wheeltec_robot',
executable='wheeltec_robot_node',
parameters=[{'use_imu': True}]
)
])
```
---
### 进阶调试技巧
1. **TF重映射检查**
若使用命名空间(namespace),需在launch文件中添加tf前缀:
```python
Node(
...,
parameters=[{'frame_prefix': 'robot1/'}]
)
```
同时在RViz中将Fixed Frame改为`robot1/odom`
2. **DDS配置优化**
在`wheeltec_robot.cpp`中设置QoS策略:
```cpp
auto qos = rclcpp::QoS(rclcpp::KeepLast(10)).reliable();
imu_sub_ = create_subscription<sensor_msgs::msg::Imu>("/imu/data", qos, ...);
```
---
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