================ Start to Copy Raw Data ================ cp: cannot stat 'data/DAIR-V2X/cooperative-vehicle-infrastructure/image': No such file or directory

时间: 2025-06-05 17:06:13 浏览: 23
### 解决方案 当遇到 `cp` 命令中的错误提示 `cannot stat 'file': No such file or directory` 时,这通常意味着目标文件或源路径不存在。以下是可能的原因以及解决方案: #### 可能原因分析 1. **拼写错误** 如果输入的目标文件名或路径存在拼写错误,则会引发此问题。需要仔细检查命令中涉及的每一个部分是否正确[^1]。 2. **权限不足** 即使文件确实存在于系统中,如果当前用户对该文件没有读取权限或者对其所在目录没有访问权限,也会触发该错误。可以通过检查用户的权限来确认这一点[^3]。 3. **相对路径与绝对路径混淆** 使用相对路径可能导致定位不到实际存在的文件。建议切换到更清晰的方式——即采用完整的绝对路径来进行操作[^2]。 4. **软链接损坏** 若尝试复制的是一个符号链接而它指向的内容已经丢失,则同样会出现上述报错情况。应验证这些特殊类型的文件状态正常与否[^4]。 #### 实际解决方法 为了有效处理这个问题,请按照下面的方法逐一排查并修正: - 验证文件是否存在及其位置准确性;可以先运行简单的测试指令如 `ls -l source_file_path` 来查看是否有任何异常反馈。 ```bash ls -l /path/to/source/file ``` - 确认执行者具备足够的权利去接触那些待转移的数据资源。如果是普通账户遇到了阻碍,考虑临时提升至超级管理员身份再重试一次: ```bash sudo cp /source/path/* /destination/path/ ``` - 当涉及到跨不同挂载点的操作时(比如从 `/home/user/docs` 移动资料到外部硬盘上的某个特定子文件夹),记得留意各磁盘分区剩余空间状况以免因满额而导致失败情形发生。利用之前提到过的 `df -k` 查阅整体存储布局概况: ```bash df -kh ``` - 对于某些复杂场景下创建的新环境配置文档而言(例如安装Oracle数据库实例过程中),除了基本的对象所有权调整外还需要额外设置好相应的组成员关系及可执行属性等等细节事项: ```bash chown -R newowner:newgroup target_directory chmod u+x script.sh ``` 以上就是针对Linux环境下使用CP命令时报“No Such File Or Directory”的常见应对策略总结说明。 ```python import os def check_and_copy(src, dst): try: if not os.path.exists(src): raise FileNotFoundError(f"The source '{src}' does not exist.") # Ensure destination parent exists. os.makedirs(os.path.dirname(dst), exist_ok=True) shutil.copy(src, dst) except Exception as e: print(e) check_and_copy("/original/location", "/new/place") ```
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a的数据类型好像确实不是NumPy数组,该如何修改呢?源代码如下:# -*- coding: utf-8 -*- """ Load training data set Created on Feb 2018 @author: fangshuyang ([email protected]) """ import numpy as np from skimage.measure import block_reduce import skimage import scipy.io def DataLoad_Train(train_size,train_data_dir,data_dim,in_channels,model_dim,data_dsp_blk,label_dsp_blk,start,datafilename,dataname,truthfilename,truthname): for i in range(start,start+train_size): filename_seis = train_data_dir+'georec_train/'+datafilename+str(i) print(filename_seis) # Load .mat data data1_set = scipy.io.loadmat(filename_seis) data1_set = np.float32(data1_set[str(dataname)].reshape([data_dim[0],data_dim[1],in_channels])) # Change the dimention [h, w, c] --> [c, h, w] for k in range (0,in_channels): data11_set = np.float32(data1_set[:,:,k]) data11_set = np.float32(data11_set) # Data downsampling data11_set = block_reduce(data11_set,block_size=data_dsp_blk,func=decimate) data_dsp_dim = data11_set.shape data11_set = data11_set.reshape(1,data_dsp_dim[0]*data_dsp_dim[1]) if k==0: train1_set = data11_set else: train1_set = np.append(train1_set,data11_set,axis=0) filename_label = train_data_dir+'vmodel_train/'+truthfilename+str(i) data2_set = scipy.io.loadmat(filename_label) data2_set = np.float32(data2_set[str(truthname)].reshape(model_dim)) # Label downsampling data2_set = block_reduce(data2_set,block_size=label_dsp_blk,func=np.max) label_dsp_dim = data2_set.shape data2_set = data2_set.reshape(1,label_dsp_dim[0]*label_dsp_dim[1]) data2_set = np.float32(data2_set) if i==start: train_set = train1_set label_set = data2_set else:

import os # import re import sys # import time import pandas as pd import numpy as np from datetime import datetime import matplotlib.pyplot as plt import seaborn as sns # set path env -- START def setModulePath(rootName, maxTries=8):     rootPath = os.path.dirname(os.path.abspath(__file__))     for i in range(maxTries):         if os.path.basename(rootPath)==rootName:    # 如果已经到达指定的根目录             break         else:             rootPath = os.path.dirname(rootPath)  # 否则取上级目录     print('<root>',rootPath)     sys.path.append(rootPath)     return rootPath root = setModulePath(rootName='assignment') from utilities import ez # set path env -- END class DataAnalyzer:   def __init__(self):     self.dataFrame = None   def getDataFromExcel(self, src_pth, data_type, cols):       obj = pd.ExcelFile(src_pth)       raw = pd.read_excel(obj, sheet_name=0, dtype=data_type)     self.dataFrame = raw[cols].copy(deep=True)   def adjustDataType(self ):     df = self.dataFrame.copy(deep=True)         intCols = [ "size" ]     for i in intCols:       df[i] = df[i].apply(lambda x: int(x))         floatCols = [ "total_bill", "tip"]     for i in floatCols:       df[i] = df[i].apply(lambda x: float(x))         self.dataFrame = df if __name__ == '__main__':   infile = os.path.join(root, "data", "data.xlsx")   inputColumns = ez.inputColumns   inputColumnType = {column: str for column in inputColumns}   analyzer = DataAnalyzer()   analyzer.getDataFromExcel(src_pth=infile, data_type=inputColumnType,cols=inputColumns)   analyzer.adjustDataType()   df = analyzer.dataFrame   df['tip_percent'] = df['tip']/(df['tip']+df['total_bill'])   sns.set() 这个程序包括了哪些知识点

Namespace(weights='yolo7.pt', cfg='cfg/training/yolov7.yaml', data='data/DOTA_split.yaml', hyp='data/hyp.scratch.p5.yaml', epochs=10, batch_size=4, img_size=[640, 640], rect=False, resume=False, nosave=False, notest=False, noautoanchor=False, evolve=False, bucket='', cache_images=False, image_weights=False, device='', multi_scale=False, single_cls=False, ada m=False, sync_bn=False, local_rank=-1, workers=8, project='runs/train', entity=None, name='exp', exist_ok=False, quad=False, linear_lr=False, label_smoothing=0.0, upload_dataset=False, bbox_interval=-1, save_period=-1, artifact_alias='latest', freeze=[0], v5_metric=False, world_size=1, global_rank=-1, save_dir='runs\\train\\exp2', total_batch_size=4) tensorboard: Start with 'tensorboard --logdir runs/train', view at http://localhost:6006/ hyperparameters: lr0=0.01, lrf=0.1, momentum=0.937, weight_decay=0.0005, warmup_epochs=3.0, warmup_momentum=0.8, warmup_bias_lr=0.1, box=0.05, cls=0.3, cls_pw=1.0, obj=0.7, obj_pw= 1.0, iou_t=0.2, anchor_t=4.0, fl_gamma=0.0, hsv_h=0.015, hsv_s=0.7, hsv_v=0.4, degrees=0.0, translate=0.2, scale=0.9, shear=0.0, perspective=0.0, flipud=0.0, fliplr=0.5, mosaic=1.0, mixup=0.15, copy_paste=0.0, paste_in=0.15, loss_ota=1 Traceback (most recent call last): File "D:\Documents\Desktop\YOLO_suanfa\yolov7-main\train.py", line 618, in <module> train(hyp, opt, device, tb_writer) File "D:\Documents\Desktop\YOLO_suanfa\yolov7-main\train.py", line 64, in train data_dict = yaml.load(f, Loader=yaml.SafeLoader) # data dict File "D:\Documents\Desktop\YOLO_suanfa\yolov7-main\venv\lib\site-packages\yaml\__init__.py", line 79, in load loader = Loader(stream) File "D:\Documents\Desktop\YOLO_suanfa\yolov7-main\venv\lib\site-packages\yaml\loader.py", line 34, in __init__ Reader.__init__(self, stream) File "D:\Documents\Desktop\YOLO_suanfa\yolov7-main\venv\lib\site-packages\yaml\reader.py", line 85, in __init__ self.determine_encoding() File "D:\Documents\Desktop\YOLO_suanfa\yolov7-main\venv\lib\site-packages\yaml\reader.py", line 124, in determine_encoding self.update_raw() File "D:\Documents\Desktop\YOLO_suanfa\yolov7-main\venv\lib\site-packages\yaml\reader.py", line 178, in update_raw data = self.stream.read(size) UnicodeDecodeError: 'gbk' codec can't decode byte 0x80 in position 233: illegal multibyte sequence

下面的代码是干什么用的,请生成说明注释,: 【import rospy, math from teb_local_planner.msg import FeedbackMsg, TrajectoryMsg, TrajectoryPointMsg from geometry_msgs.msg import PolygonStamped, Point32, Quaternion from tf.transformations import euler_from_quaternion import numpy as np import scipy.io as sio import time def feedback_callback(data): global got_data if not data.trajectories: # empty trajectory = [] return if got_data: return got_data = True # copy trajectory trajectories = [] for traj in data.trajectories: trajectory = [] # # store as struct and cell array # for point in traj.trajectory: # (roll,pitch,yaw) = euler_from_quaternion([point.pose.orientation.x,point.pose.orientation.y,point.pose.orientation.z,point.pose.orientation.w]) # pose = {'x': point.pose.position.x, 'y': point.pose.position.y, 'theta': yaw} # velocity = {'v': point.velocity.linear.x, 'omega': point.velocity.angular.z} # time_from_start = point.time_from_start.to_sec() # trajectory.append({'pose': pose, 'velocity': velocity, 'time_from_start': time_from_start}) # store as all-in-one mat arr = np.zeros([6, len(traj.trajectory)], dtype='double'); # x, y, theta, v, omega, t for index, point in enumerate(traj.trajectory): arr[0,index] = point.pose.position.x arr[1,index] = point.pose.position.y (roll,pitch,yaw) = euler_from_quaternion([point.pose.orientation.x,point.pose.orientation.y,point.pose.orientation.z,point.pose.orientation.w]) arr[2,index] = yaw arr[3,index] = point.velocity.linear.x arr[4,index] = point.velocity.angular.z arr[5,index] = point.time_from_start.to_sec() # trajectories.append({'raw': trajectory, 'mat': arr}) trajectories.append({'data': arr, 'legend': ['x','y','theta','v','omega','t']}) # copy obstacles obstacles = [] for obst_id, obst in enumerate(data.obstacle_msg.obstacles): #polygon = [] #for point in obst.polygon.points: # polygon.append({'x': point.x, 'y': point.y, 'z': point.z}) obst_arr = np.zeros([4, len(obst.polygon.points)], dtype='double'); # x, y for index, point in enumerate(obst.polygon.points): obst_arr[0, index] = point.x obst_arr[1, index] = point.y obst_arr[2, index] = data.obstacle_msg.velocities[obst_id].twist.linear.x obst_arr[3, index] = data.obstacle_msg.velocities[obst_id].twist.linear.y #obstacles.append(polygon) obstacles.append({'data': obst_arr, 'legend': ['x','y', 'v_x', 'v_y']}) # create main struct: mat = {'selected_trajectory_idx': data.selected_trajectory_idx, 'trajectories': trajectories, 'obstacles': obstacles} timestr = time.strftime("%Y%m%d_%H%M%S") filename = '/home/albers/MasterThesis/Matlab/Homotopie/test_optim_node/' + 'teb_data_' + timestr + '.mat' rospy.loginfo("Saving mat-file '%s'.", filename) sio.savemat(filename, mat) def feedback_exporter(): global got_data rospy.init_node("export_to_mat", anonymous=True) topic_name = "/test_optim_node/teb_feedback" # define feedback topic here! rospy.Subscriber(topic_name, FeedbackMsg, feedback_callback, queue_size = 1) rospy.loginfo("Waiting for feedback message on topic %s.", topic_name) r = rospy.Rate(2) # define rate here while not rospy.is_shutdown(): if got_data: rospy.loginfo("Data export completed.") return r.sleep() if __name__ == '__main__': try: global got_data got_data = False feedback_exporter() except rospy.ROSInterruptException: pass】

解释一下这段函数如何调用:int16_t SdFile::read(void* buf, uint16_t nbyte) { uint8_t* dst = reinterpret_cast<uint8_t*>(buf); // error if not open or write only if (!isOpen() || !(flags_ & F_READ)) return -1; // max bytes left in file if (nbyte > (fileSize_ - curPosition_)) nbyte = fileSize_ - curPosition_; // amount left to read uint16_t toRead = nbyte; while (toRead > 0) { uint32_t block; // raw device block number uint16_t offset = curPosition_ & 0X1FF; // offset in block if (type_ == FAT_FILE_TYPE_ROOT16) { block = vol_->rootDirStart() + (curPosition_ >> 9); } else { uint8_t blockOfCluster = vol_->blockOfCluster(curPosition_); if (offset == 0 && blockOfCluster == 0) { // start of new cluster if (curPosition_ == 0) { // use first cluster in file curCluster_ = firstCluster_; } else { // get next cluster from FAT if (!vol_->fatGet(curCluster_, &curCluster_)) return -1; } } block = vol_->clusterStartBlock(curCluster_) + blockOfCluster; } uint16_t n = toRead; // amount to be read from current block if (n > (512 - offset)) n = 512 - offset; // no buffering needed if n == 512 or user requests no buffering if ((unbufferedRead() || n == 512) && block != SdVolume::cacheBlockNumber_) { if (!vol_->readData(block, offset, n, dst)) return -1; dst += n; } else { // read block to cache and copy data to caller if (!SdVolume::cacheRawBlock(block, SdVolume::CACHE_FOR_READ)) return -1; uint8_t* src = SdVolume::cacheBuffer_.data + offset; uint8_t* end = src + n; while (src != end) *dst++ = *src++; } curPosition_ += n; toRead -= n; } return nbyte; }

import pandas as pd import numpy as np def detect_fog_events(df, fog_threshold=1000, buffer_thresholds=(2000, 3000), max_gap_hours=12, min_duration='30T'): """ 最终修复版:准确统计每个大雾事件前的能见度下降时间点 """ df = df.copy().sort_index() df['is_fog'] = df['visibility'] < fog_threshold # 步骤1:检测原始事件并过滤短事件 fog_changes = df['is_fog'].ne(df['is_fog'].shift()).cumsum() fog_groups = df.groupby(fog_changes) raw_events = [] for _, group in fog_groups: if group['is_fog'].iloc[0]: event_start = group.index[0] event_end = group.index[-1] duration = event_end - event_start if duration >= pd.Timedelta(min_duration): raw_events.append({'start': event_start, 'end': event_end}) # 步骤2:合并相邻事件 merged_events = [] if raw_events: current_start, current_end = raw_events[0]['start'], raw_events[0]['end'] for event in raw_events[1:]: if (event['start'] - current_end) <= pd.Timedelta(hours=max_gap_hours): current_end = event['end'] else: merged_events.append({'start': current_start, 'end': current_end}) current_start, current_end = event['start'], event['end'] merged_events.append({'start': current_start, 'end': current_end}) # 步骤3:为每个合并后事件重新计算关键时间点 final_events = [] for event in merged_events: start = event['start'] end = event['end'] # 关键修复:从大雾开始时间点(start)向前查找最近的阈值突破点 pre_window = df.loc[:start].iloc[::-1] # 倒序数据:从start往前查 # 查找能见度首次低于3000的时间点 (最近一次突破) pre_3000 = pre_window[pre_window['visibility'] < 3000] pre_3000m = pre_3000.index[0] if not pre_3000.empty else pd.NaT # 查找能见度首次低于2000的时间点 pre_2000 = pre_window[pre_window['visibility'] < 2000] pre_2000m = pre_2000.index[0] if not pre_2000.empty else pd.NaT # 同理处理后恢复时间点 post_window = df.loc[end:] post_2000m = post_window[post_window['visibility'] > 2000].index[0] if not post_window.empty else pd.NaT post_3000m = post_window[post_window['visibility'] > 3000].index[0] if not post_window.empty else pd.NaT final_events.append({ 'pre_3000m': pre_3000m, 'pre_2000m': pre_2000m, 'start': start, 'end': end, 'post_2000m': post_2000m, 'post_3000m': post_3000m, 'duration': end - start }) # 最终过滤和耗时计算 result_df = pd.DataFrame(final_events) result_df = result_df[result_df['duration'] >= pd.Timedelta(min_duration)] result_df['下降3000m耗时'] = result_df['start'] - result_df['pre_3000m'] result_df['下降2000m耗时'] = result_df['start'] - result_df['pre_2000m'] result_df['恢复2000m耗时'] = result_df['post_2000m'] - result_df['end'] result_df['恢复3000m耗时'] = result_df['post_3000m'] - result_df['end'] return result_df[['pre_3000m', 'pre_2000m', 'start', 'end', 'post_2000m', 'post_3000m', 'duration', '下降3000m耗时', '下降2000m耗时', '恢复2000m耗时', '恢复3000m耗时']] # 测试案例 test_data = { 'time': pd.date_range('2023-01-01', periods=24, freq='H'), 'visibility': [ 5000, 4000, 3500, 3200, # 未达到阈值 2800, 1500, 800, 800, # 事件1前:3000m突破点在 3:00,2000m在4:00 1500, 2000, 2500, 3000, # 恢复 5000, 4500, 3200, 1800, # 事件2前:3000m在14:00,2000m在15:00 800, 800, 1500, 2000, # 恢复 3000, 5000, 5000 ] } df_test = pd.DataFrame(test_data).set_index('time') fog_events = detect_fog_events(df_test) print(fog_events) 在之前你提供的代码基础上增加实现返回大雾前3000-2000米、2000-1000米期间、大雾期间、恢复至2000米、3000米阶段期间的平均风速、风向、相对湿度、温度、露点、温度露点差、总云量、气压

using UnityEngine; using System.Net.Sockets; using System.Text; using System.Threading; using System.Collections.Concurrent; using Unity.Mathematics.Geometry; using Unity.Mathematics; public class DataTramsmission : MonoBehaviour { public GameObject Sphere; private TcpClient client; private NetworkStream stream; private Thread receiveThread; private bool isRunning = true; public float fixedWorldY = 0.08f; // 目标世界坐标 Y 值 // 使用线程安全的队列存储接收到的数据 private ConcurrentQueue<string> dataQueue = new ConcurrentQueue<string>(); void Start() { ConnectToServer(); } void ConnectToServer() { try { client = new TcpClient("127.0.0.1", 8848); stream = client.GetStream(); receiveThread = new Thread(new ThreadStart(ReceiveData)); receiveThread.IsBackground = true; receiveThread.Start(); } catch (System.Exception e) { Debug.LogError("连接错误: " + e.Message); } } void ReceiveData() { byte[] buffer = new byte[1024]; while (isRunning) { try { int bytesRead = stream.Read(buffer, 0, buffer.Length); if (bytesRead > 0) { string receivedData = Encoding.UTF8.GetString(buffer, 0, bytesRead); // 将数据存入队列 dataQueue.Enqueue(receivedData); } } catch (System.Exception e) { Debug.LogError("接收错误: " + e.Message); break; } } } void Update() { // 在主线程中处理队列中的数据 while (dataQueue.TryDequeue(out string data)) { ParseData(data, Sphere.transform); } } public void ParseData(string data, Transform yuanqiu) { string[] parts = data.Split(','); if (parts.Length == 3) {

/* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.c * @brief : Main program body ****************************************************************************** * @attention * *
© Copyright (c) 2019 STMicroelectronics. * All rights reserved.
* * This software component is licensed by ST under BSD 3-Clause license, * the "License"; You may not use this file except in compliance with the * License. You may obtain a copy of the License at: * opensource.org/licenses/BSD-3-Clause * ****************************************************************************** */ /* USER CODE END Header */ /* Includes ------------------------------------------------------------------*/ #include "main.h" #include "adc.h" #include "dma.h" #include "tim.h" #include "usart.h" #include "gpio.h" /* Private includes ----------------------------------------------------------*/ /* USER CODE BEGIN Includes */ /* USER CODE END Includes */ /* Private typedef -----------------------------------------------------------*/ /* USER CODE BEGIN PTD */ #include <math.h> #include "stdio.h" #include <string.h> #define START_BYTE 0x5B // 协议开始字节 #define END_BYTE 0x5C // 协议结束字节 #define RXBUFFERSIZE 3 uint8_t RxBuffer[RXBUFFERSIZE]; // 接收缓冲区 uint8_t aRxBuffer; // 单字节接收变量 uint8_t Uart1_Rx_Cnt = 0; // 接收计数器 uint8_t data = 0x46; // 假设data的值为0x05,10进制为5 /* USER CODE END PTD */ /* Private define ------------------------------------------------------------*/ /* USER CODE BEGIN PD */ #ifdef __GNUC__ #define PUTCHAR_PROTOTYPE int __io_putchar(int ch) #else #define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f) #endif PUTCHAR_PROTOTYPE { //具体哪个串口可以更改huart1为其它串口 HAL_UART_Transmit(&huart1 , (uint8_t *)&ch, 1 , 0xffff); return ch; } /* USER CODE END PD */ /* Private macro -------------------------------------------------------------*/ /* USER CODE BEGIN PM */ /* USER CODE END PM */ /* Private variables ---------------------------------------------------------*/ /* USER CODE BEGIN PV */ float ADC_Value[1] = {0};//模拟数据 float data_Value[1] = {0};//实际对应数据 uint8_t dataFrame[18]; // 0x5B + 16字节数据 + 0x5C int k = 1;//试剂规定比值 int i; float ADC1_Voltage = 0; uint32_t RAW = 0; float voltage = 0; /* USER CODE END PV */ /* Private function prototypes -----------------------------------------------*/ void SystemClock_Config(void); /* USER CODE BEGIN PFP */ /* USER CODE END PFP */ /* Private user code ---------------------------------------------------------*/ /* USER CODE BEGIN 0 */ /* USER CODE END 0 */ /** * @brief The application entry point. * @retval int */ int main(void) { /* USER CODE BEGIN 1 */ /* USER CODE END 1 */ /* MCU Configuration--------------------------------------------------------*/ /* Reset of all peripherals, Initializes the Flash interface and the Systick. */ HAL_Init(); /* USER CODE BEGIN Init */ /* USER CODE END Init */ /* Configure the system clock */ SystemClock_Config(); /* USER CODE BEGIN SysInit */ /* USER CODE END SysInit */ /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_DMA_Init(); MX_USART1_UART_Init(); MX_TIM2_Init(); MX_ADC2_Init(); MX_ADC1_Init(); /* USER CODE BEGIN 2 */ HAL_UART_Receive_IT(&huart1, (uint8_t *)&aRxBuffer, 1); HAL_ADCEx_Calibration_Start(&hadc1); //ADC校准 // HAL_ADCEx_Calibration_Start(&hadc2); //ADC校准 /* USER CODE END 2 */ /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1) { /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ // HAL_GPIO_WritePin(signal_GPIO_Port, signal_Pin, GPIO_PIN_RESET);//CS默认低电平 // HAL_Delay(500); } /* USER CODE END 3 */ } /** * @brief System Clock Configuration * @retval None */ void SystemClock_Config(void) { RCC_OscInitTypeDef RCC_OscInitStruct = {0}; RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; RCC_PeriphCLKInitTypeDef PeriphClkInit = {0}; /** Initializes the RCC Oscillators according to the specified parameters * in the RCC_OscInitTypeDef structure. */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.HSEState = RCC_HSE_ON; RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1; RCC_OscInitStruct.HSIState = RCC_HSI_ON; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9; if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { Error_Handler(); } /** Initializes the CPU, AHB and APB buses clocks */ RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2; RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2; RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1; if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK) { Error_Handler(); } PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_ADC; PeriphClkInit.AdcClockSelection = RCC_ADCPCLK2_DIV6; if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) { Error_Handler(); } } /* USER CODE BEGIN 4 */ //void Read_Dual_ADC_Channels(void) //{ // uint32_t adc_raw[2] = {0}; // float voltage[2] = {0}; // const float vref = 3.3f; // uint32_t adc1_sum = 0; // // 1. ADC1常规采集(PA1) // HAL_ADC_Start(&hadc1); // if(HAL_ADC_PollForConversion(&hadc1, 1000) == HAL_OK) { // adc_raw[0] = HAL_ADC_GetValue(&hadc1); // } // HAL_ADC_Stop(&hadc1); // // 3. ADC2常规采集(PA2) // HAL_ADC_Start(&hadc2); // if(HAL_ADC_PollForConversion(&hadc2, 1000) == HAL_OK) { // adc_raw[1] = HAL_ADC_GetValue(&hadc2); // } // HAL_ADC_Stop(&hadc2); // // 4. 电压计算 // voltage[0] = vref * adc_raw[0] / 4095.0f; // voltage[1] = vref * adc_raw[1] / 4095.0f; // // // 6. 存储全局变量 //// ADC_Value[0] = voltage[0]; //// ADC_Value[1] = voltage[1]; // // 7. 串口输出(带滤波信息) // char textResponse[128]; // int len = snprintf(textResponse, sizeof(textResponse), // "ADC1_CH8=%.2fv | ADC2_CH9=%.2fv\r\n", // voltage[0], voltage[1]); // HAL_UART_Transmit(&huart1, (uint8_t*)textResponse, len, 100); //} void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) { if(huart == &huart1) { RxBuffer[Uart1_Rx_Cnt++] = aRxBuffer; if (Uart1_Rx_Cnt == 1 && aRxBuffer != START_BYTE) { Uart1_Rx_Cnt = 0; HAL_UART_Receive_IT(&huart1, &aRxBuffer, 1); return; } if (Uart1_Rx_Cnt == 3 && RxBuffer[1] == 0x01 && RxBuffer[2] == END_BYTE) { uint32_t RAW = 0; float voltage = 0; HAL_ADC_Start(&hadc1); if(HAL_ADC_PollForConversion(&hadc1, 1) == HAL_OK) { RAW = HAL_ADC_GetValue(&hadc1); voltage = 3.3f * RAW / 4095.0f; // 放入 if 内部确保 RAW 有效 ADC1_Voltage = voltage; } HAL_ADC_Stop(&hadc1); char textResponse[64]; int len = snprintf(textResponse, sizeof(textResponse), "ADC1=%.2fv (raw=%u)\r\n", ADC1_Voltage, RAW); HAL_UART_Transmit(&huart1, (uint8_t*)textResponse, len, 100); Uart1_Rx_Cnt = 0; } else if (Uart1_Rx_Cnt >= RXBUFFERSIZE) { Uart1_Rx_Cnt = 0; } HAL_UART_Receive_IT(&huart1, &aRxBuffer, 1); } } /* USER CODE END 4 */ /** * @brief This function is executed in case of error occurrence. * @retval None */ void Error_Handler(void) { /* USER CODE BEGIN Error_Handler_Debug */ /* User can add his own implementation to report the HAL error return state */ /* USER CODE END Error_Handler_Debug */ } #ifdef USE_FULL_ASSERT /** * @brief Reports the name of the source file and the source line number * where the assert_param error has occurred. * @param file: pointer to the source file name * @param line: assert_param error line source number * @retval None */ void assert_failed(uint8_t *file, uint32_t line) { /* USER CODE BEGIN 6 */ /* User can add his own implementation to report the file name and line number, tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ /* USER CODE END 6 */ } #endif /* USE_FULL_ASSERT */ 这样写对么

将下面代码优化,并输出优化后的完整代码:import numpy as np import pandas as pd from PyQt5.QtWidgets import * from PyQt5.QtChart import QChart, QChartView, QLineSeries, QValueAxis from PyQt5.QtCore import Qt, QTimer import os def generate_test_data(filename): time = np.arange(0, 3600, 1) df = pd.DataFrame({ 'timestamp': pd.date_range(start='2023-01-01', periods=3600, freq='S'), 'speed': np.random.normal(500, 150, 3600), 'altitude': np.random.randint(8000, 40000, 3600), 'fuel': np.linspace(5000, 0, 3600) }) df.to_csv(filename, index=False) class CSVHandler: def __init__(self, filename): self.df = pd.read_csv(filename) self.current_index = 0 def get_next_row(self): """模拟实时数据流""" if self.current_index < len(self.df): row = self.df.iloc[self.current_index] self.current_index += 1 return row.to_dict() return None class MainWindow(QMainWindow): def __init__(self): super().__init__() self.init_ui() self.alarm_ranges = {'speed': (200, 900), 'altitude': (5000, 45000), 'fuel': (1000, 5000)} # 初始化定时器 self.timer = QTimer() self.timer.timeout.connect(self.update_data) self.timer.start(1000) # 1秒更新一次 def init_ui(self): self.setWindowTitle("飞行状态监控") self.central_widget = QWidget() self.setCentralWidget(self.central_widget) # 创建图表区域 self.speed_chart = self.create_chart("速度 (km/h)") self.altitude_chart = self.create_chart("高度 (m)") self.fuel_chart = self.create_chart("油量 (L)") # 布局设置 layout = QGridLayout() layout.addWidget(self.speed_chart, 0, 0) layout.addWidget(self.altitude_chart, 0, 1) layout.addWidget(self.fuel_chart, 1, 0) self.central_widget.setLayout(layout) def update_data(self): data = csv_handler.get_next_row() if data: # 更新速度图表 self.update_ch

/* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.c * @brief : Main program body ****************************************************************************** * @attention * *
© Copyright (c) 2025 STMicroelectronics. * All rights reserved.
* * This software component is licensed by ST under BSD 3-Clause license, * the "License"; You may not use this file except in compliance with the * License. You may obtain a copy of the License at: * opensource.org/licenses/BSD-3-Clause * ****************************************************************************** */ /* USER CODE END Header */ /* Includes ------------------------------------------------------------------*/ #include "main.h" #include "adc.h" #include "usart.h" #include "gpio.h" /* Private includes ----------------------------------------------------------*/ /* USER CODE BEGIN Includes */ #include "string.h" #include "lcd.h" #include <stdio.h> #include "led1.h" #include "uart.h" #include "key.h" #include "flash.h" float distance = 0; char buf[32]; /* USER CODE END Includes */ /* Private typedef -----------------------------------------------------------*/ /* USER CODE BEGIN PTD */ /* USER CODE END PTD */ /* Private define ------------------------------------------------------------*/ /* USER CODE BEGIN PD */ /* USER CODE END PD */ /* Private macro -------------------------------------------------------------*/ /* USER CODE BEGIN PM */ /* USER CODE END PM */ /* Private variables ---------------------------------------------------------*/ /* USER CODE BEGIN PV */ uint8_t key_rval; char lcd_buf[32] = {0}; double volt_R37; double volt_R38; extern uint8_t l2450_rx_data; extern char l2450_rx_buffer[50]; extern uint8_t l2450_rx_index; volatile int16_t x_distance = 0; // ??????? volatile int16_t y_distance = 0; /* USER CODE END PV */ /* Private function prototypes -----------------------------------------------*/ void SystemClock_Config(void); /* USER CODE BEGIN PFP */ /* USER CODE END PFP */ /* Private user code ---------------------------------------------------------*/ /* USER CODE BEGIN 0 */ /* USER CODE END 0 */ /** * @brief The application entry point. * @retval int */ int main(void) { /* USER CODE BEGIN 1 */ /* USER CODE END 1 */ /* MCU Configuration--------------------------------------------------------*/ /* Reset of all peripherals, Initializes the Flash interface and the Systick. */ HAL_Init(); /* USER CODE BEGIN Init */ /* USER CODE END Init */ /* Configure the system clock */ SystemClock_Config(); /* USER CODE BEGIN SysInit */ /* USER CODE END SysInit */ /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_USART1_UART_Init(); MX_ADC1_Init(); MX_ADC2_Init(); MX_USART2_UART_Init(); /* USER CODE BEGIN 2 */ distance = Flash_LoadDistance(); LCD_Init(); LCD_Clear(White); LCD_SetBackColor(White); LCD_SetTextColor(Black); LCD_DisplayStringLine(Line4, (uint8_t *)"x:---- y:----"); char lcd_buf[32]; sprintf(lcd_buf, "distance:%.1f m", distance); LCD_DisplayStringLine(Line9, (uint8_t*)lcd_buf); UART_StartReceive_IT(); HAL_UART_Receive_IT(&huart2, &l2450_rx_data, 1); HAL_ADCEx_Calibration_Start(&hadc1,ADC_SINGLE_ENDED); HAL_ADCEx_Calibration_Start(&hadc2,ADC_SINGLE_ENDED); volt_R37=getADC2()*3.2/4096; volt_R38=getADC1()*3.2/4096; /* USER CODE END 2 */ /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1) { /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ Key_Proc(); // ???????? static int16_t last_x = 0, last_y = 0; if (x_distance != last_x || y_distance != last_y) { char lcd_buf[32]; float x_m = x_distance / 1000.0f; float y_m = y_distance / 1000.0f; sprintf(lcd_buf, "x:%1.2fm y:%1.2fm", x_m, y_m); LCD_DisplayStringLine(Line4, (uint8_t *)lcd_buf); last_x = x_distance; last_y = y_distance; } HAL_Delay(10); // ????,??LCD???? } /* USER CODE END 3 */ } /** * @brief System Clock Configuration * @retval None */ void SystemClock_Config(void) { RCC_OscInitTypeDef RCC_OscInitStruct = {0}; RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; RCC_PeriphCLKInitTypeDef PeriphClkInit = {0}; /** Configure the main internal regulator output voltage */ HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1); /** Initializes the RCC Oscillators according to the specified parameters * in the RCC_OscInitTypeDef structure. */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.HSEState = RCC_HSE_ON; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV3; RCC_OscInitStruct.PLL.PLLN = 20; RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2; RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2; RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2; if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { Error_Handler(); } /** Initializes the CPU, AHB and APB buses clocks */ RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2; RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1; RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1; if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK) { Error_Handler(); } /** Initializes the peripherals clocks */ PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1|RCC_PERIPHCLK_USART2 |RCC_PERIPHCLK_ADC12; PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK2; PeriphClkInit.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1; PeriphClkInit.Adc12ClockSelection = RCC_ADC12CLKSOURCE_SYSCLK; if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) { Error_Handler(); } } /* USER CODE BEGIN 4 */ /* USER CODE END 4 */ /** * @brief This function is executed in case of error occurrence. * @retval None */ void Error_Handler(void) { /* USER CODE BEGIN Error_Handler_Debug */ /* User can add his own implementation to report the HAL error return state */ __disable_irq(); while (1) { } /* USER CODE END Error_Handler_Debug */ } #ifdef USE_FULL_ASSERT /** * @brief Reports the name of the source file and the source line number * where the assert_param error has occurred. * @param file: pointer to the source file name * @param line: assert_param error line source number * @retval None */ void assert_failed(uint8_t *file, uint32_t line) { /* USER CODE BEGIN 6 */ /* User can add his own implementation to report the file name and line number, ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ /* USER CODE END 6 */ } #endif /* USE_FULL_ASSERT */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ /* USER CODE BEGIN Header */ /** ****************************************************************************** * @file stm32g4xx_it.c * @brief Interrupt Service Routines. ****************************************************************************** * @attention * *
© Copyright (c) 2025 STMicroelectronics. * All rights reserved.
* * This software component is licensed by ST under BSD 3-Clause license, * the "License"; You may not use this file except in compliance with the * License. You may obtain a copy of the License at: * opensource.org/licenses/BSD-3-Clause * ****************************************************************************** */ /* USER CODE END Header */ /* Includes ------------------------------------------------------------------*/ #include "main.h" #include "stm32g4xx_it.h" /* Private includes ----------------------------------------------------------*/ /* USER CODE BEGIN Includes */ #include <string.h> #include <stdlib.h> #include <stdio.h> #include "lcd.h" #include "led1.h" #include "usart.h" #include "uart.h" /* USER CODE END Includes */ /* Private typedef -----------------------------------------------------------*/ /* USER CODE BEGIN TD */ // ?????? extern UART_HandleTypeDef huart1; extern UART_HandleTypeDef huart2; extern volatile int16_t x_distance; extern volatile int16_t y_distance; extern float distance; // USART2 ?????? extern uint8_t l2450_rx_data; extern char l2450_rx_buffer[50]; extern uint8_t l2450_rx_index; // USART1 ???????? extern uint8_t rx_data; extern char tx_buf[64]; /* USER CODE END TD */ /* Private define ------------------------------------------------------------*/ /* USER CODE BEGIN PD */ /* USER CODE END PD */ /* Private macro -------------------------------------------------------------*/ /* USER CODE BEGIN PM */ /* USER CODE END PM */ /* Private variables ---------------------------------------------------------*/ /* USER CODE BEGIN PV */ static uint8_t rec_buf[50]; // ????? static uint8_t rec_index = 0; /* USER CODE END PV */ /* Private function prototypes -----------------------------------------------*/ /* USER CODE BEGIN PFP */ /* USER CODE END PFP */ /* Private user code ---------------------------------------------------------*/ /* USER CODE BEGIN 0 */ /* USER CODE END 0 */ /* External variables --------------------------------------------------------*/ extern UART_HandleTypeDef huart1; extern UART_HandleTypeDef huart2; /* USER CODE BEGIN EV */ extern UART_HandleTypeDef huart2; extern uint8_t l2450_rx_data; extern char l2450_rx_buffer[50]; extern uint8_t l2450_rx_index; extern float distance; /* USER CODE END EV */ /******************************************************************************/ /* Cortex-M4 Processor Interruption and Exception Handlers */ /******************************************************************************/ /** * @brief This function handles Non maskable interrupt. */ void NMI_Handler(void) { /* USER CODE BEGIN NonMaskableInt_IRQn 0 */ /* USER CODE END NonMaskableInt_IRQn 0 */ /* USER CODE BEGIN NonMaskableInt_IRQn 1 */ while (1) { } /* USER CODE END NonMaskableInt_IRQn 1 */ } /** * @brief This function handles Hard fault interrupt. */ void HardFault_Handler(void) { /* USER CODE BEGIN HardFault_IRQn 0 */ /* USER CODE END HardFault_IRQn 0 */ while (1) { /* USER CODE BEGIN W1_HardFault_IRQn 0 */ /* USER CODE END W1_HardFault_IRQn 0 */ } } /** * @brief This function handles Memory management fault. */ void MemManage_Handler(void) { /* USER CODE BEGIN MemoryManagement_IRQn 0 */ /* USER CODE END MemoryManagement_IRQn 0 */ while (1) { /* USER CODE BEGIN W1_MemoryManagement_IRQn 0 */ /* USER CODE END W1_MemoryManagement_IRQn 0 */ } } /** * @brief This function handles Prefetch fault, memory access fault. */ void BusFault_Handler(void) { /* USER CODE BEGIN BusFault_IRQn 0 */ /* USER CODE END BusFault_IRQn 0 */ while (1) { /* USER CODE BEGIN W1_BusFault_IRQn 0 */ /* USER CODE END W1_BusFault_IRQn 0 */ } } /** * @brief This function handles Undefined instruction or illegal state. */ void UsageFault_Handler(void) { /* USER CODE BEGIN UsageFault_IRQn 0 */ /* USER CODE END UsageFault_IRQn 0 */ while (1) { /* USER CODE BEGIN W1_UsageFault_IRQn 0 */ /* USER CODE END W1_UsageFault_IRQn 0 */ } } /** * @brief This function handles System service call via SWI instruction. */ void SVC_Handler(void) { /* USER CODE BEGIN SVCall_IRQn 0 */ /* USER CODE END SVCall_IRQn 0 */ /* USER CODE BEGIN SVCall_IRQn 1 */ /* USER CODE END SVCall_IRQn 1 */ } /** * @brief This function handles Debug monitor. */ void DebugMon_Handler(void) { /* USER CODE BEGIN DebugMonitor_IRQn 0 */ /* USER CODE END DebugMonitor_IRQn 0 */ /* USER CODE BEGIN DebugMonitor_IRQn 1 */ /* USER CODE END DebugMonitor_IRQn 1 */ } /** * @brief This function handles Pendable request for system service. */ void PendSV_Handler(void) { /* USER CODE BEGIN PendSV_IRQn 0 */ /* USER CODE END PendSV_IRQn 0 */ /* USER CODE BEGIN PendSV_IRQn 1 */ /* USER CODE END PendSV_IRQn 1 */ } /** * @brief This function handles System tick timer. */ void SysTick_Handler(void) { /* USER CODE BEGIN SysTick_IRQn 0 */ /* USER CODE END SysTick_IRQn 0 */ HAL_IncTick(); /* USER CODE BEGIN SysTick_IRQn 1 */ /* USER CODE END SysTick_IRQn 1 */ } /******************************************************************************/ /* STM32G4xx Peripheral Interrupt Handlers */ /* Add here the Interrupt Handlers for the used peripherals. */ /* For the available peripheral interrupt handler names, */ /* please refer to the startup file (startup_stm32g4xx.s). */ /******************************************************************************/ /** * @brief This function handles USART1 global interrupt / USART1 wake-up interrupt through EXTI line 25. */ void USART1_IRQHandler(void) { /* USER CODE BEGIN USART1_IRQn 0 */ /* USER CODE END USART1_IRQn 0 */ HAL_UART_IRQHandler(&huart1); /* USER CODE BEGIN USART1_IRQn 1 */ /* USER CODE END USART1_IRQn 1 */ } /** * @brief This function handles USART2 global interrupt / USART2 wake-up interrupt through EXTI line 26. */ void USART2_IRQHandler(void) { /* USER CODE BEGIN USART2_IRQn 0 */ /* USER CODE END USART2_IRQn 0 */ HAL_UART_IRQHandler(&huart2); /* USER CODE BEGIN USART2_IRQn 1 */ /* USER CODE END USART2_IRQn 1 */ } /* USER CODE BEGIN 1 */ void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) { if (huart->Instance == USART2) // L2450 ?? { if (rec_index < sizeof(rec_buf)) { rec_buf[rec_index++] = l2450_rx_data; } else { rec_index = 0; } if (rec_index >= 30) { if (rec_buf[0] == 0xAA && rec_buf[1] == 0xFF && rec_buf[2] == 0x03 && rec_buf[3] == 0x00 && rec_buf[28] == 0x55 && rec_buf[29] == 0xCC) { // ???????? uint16_t x_raw = rec_buf[4] | (rec_buf[5] << 8); uint16_t y_raw = rec_buf[6] | (rec_buf[7] << 8); int16_t x_mm = -(int16_t)x_raw; int16_t y_mm = (int16_t)(y_raw - 0x8000); int16_t r = (int16_t)sqrtf(x_mm * x_mm + y_mm * y_mm); if (r >= 1000 && r <= 5000) { x_distance = x_mm; y_distance = y_mm; // ???? LCD ?? char lcd_buf[32]; float x_m = x_distance / 1000.0f; float y_m = y_distance / 1000.0f; sprintf(lcd_buf, "x:%1.2fm y:%1.2fm", x_m, y_m); LCD_DisplayStringLine(Line4, (uint8_t *)lcd_buf); } rec_index = 0; } else { // ?????,??1??? memmove(rec_buf, rec_buf + 1, rec_index - 1); rec_index--; } } HAL_UART_Receive_IT(&huart2, &l2450_rx_data, 1); } else if (huart->Instance == USART1) // ??1(???????) { UART_ReceiveCallback(rx_data); HAL_UART_Receive_IT(&huart1, &rx_data, 1); } } /* USER CODE END 1 */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ 修改代码,.毫米波模块测量前面1-5m的物体。毫米波模块连接到UART2 ,,检测到的信息实时显示在LCD上

def video_pred(self): ret,frame = self.video.read() if not ret: self.timer.stop() else: qimage = convert2QImage(frame) #frame = cv2.cvtColor(frame,cv2.COLOR_BAYER_BG2BGR) self.input.setPixmap(QPixmap.fromImage(convert2QImage(frame))) results = self.worker.model(frame) if results: annotated_image = results.render()[0]['data'] if isinstance(annotated_image, np.ndarray): qimage_annotated = QImage(annotated_image.data, annotated_image.shape[1], annotated_image.shape[0], annotated_image.strides[0], QImage.Format_RGB888) self.output.setPixmap(QPixmap.fromImage(qimage_annotated.scaled(self.output.size(), Qt.AspectRatioMode.KeepAspectRatio))) #image = results.render()[0] #self.output.setPixmap(QPixmap.fromImage(convert2QImage(frame))) def open_video(self): print("加载视频中") file_path, _ = QFileDialog.getOpenFileName(self, "Open Video", "./datasets", "Video (*.mp4)") if file_path[0]: file_path = file_path[0] self.video = cv2.VideoCapture(file_path[0]) self.timer.start()def convert2QImage(img): height, width, channel = img.shape if channel == 3: # 确保是 BGR 三通道图像 # 注意:这里使用 QImage.Format_BGR888 可能会在某些系统上导致颜色显示不正确 # 因为 QImage 默认期望的是 ARGB 或 RGB 格式。如果颜色显示不正确,请尝试使用 QImage.Format_RGB888 并手动转换颜色顺序 # 但由于我们直接处理视频帧,并且通常视频帧的颜色顺序是固定的(BGR),因此这里我们保持 BGR 格式 # 如果要在 QLabel 中正确显示,请确保 QLabel 的像素格式与 QImage 的格式兼容,或者手动转换颜色顺序 return QImage(img.data, width, height, width * channel, QImage.Format_BGR888).rgbSwapped() # 使用 rgbSwapped() 方法手动交换颜色顺序以匹配 QLabel 的默认显示(如果必要) else: raise ValueError("Image must be a 3-channel BGR image")这段代码可以运行但无法出现预测结果并显示视频

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