\n| WiFi<\/td>\n | RF\u6ee4\u6ce2\u5668<\/td>\n | \u5e26\u5916\u6291\u5236>30dB，\u63d2\u5165\u635f\u8017<1dB<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n3.2 \u901a\u4fe1\u534f\u8bae\u5197\u4f59\u8bbe\u8ba1<\/h4>\n\u5355\u4e00\u901a\u4fe1\u94fe\u8def\u5728\u590d\u6742\u73af\u5883\u4e2d\u53ef\u80fd\u5931\u6548，\u6211\u4eec\u91c7\u7528\u53cc\u94fe\u8def\u5197\u4f59\u8bbe\u8ba1\u3002\u4e3b\u94fe\u8def\u901a\u5e38\u4f7f\u7528\u6709\u7ebf\u8fde\u63a5（\u5982\u4ee5\u592a\u7f51\u6216CAN\u603b\u7ebf），\u5907\u7528\u94fe\u8def\u4f7f\u7528\u65e0\u7ebf\u8fde\u63a5（\u59824G\/5G\u6216WiFi）\u3002\u7cfb\u7edf\u5b9e\u65f6\u76d1\u6d4b\u94fe\u8def\u72b6\u6001，\u81ea\u52a8\u5207\u6362\u3002<\/p>\n \/\/ \u53cc\u94fe\u8def\u901a\u4fe1\u7ba1\u7406
\ntypedef enum {
\n LINK_PRIMARY = 0,
\n LINK_BACKUP,
\n LINK_BOTH
\n} LinkType_t;<\/p>\n typedef struct {
\n uint32_t last_heartbeat;
\n uint8_t link_quality;
\n uint8_t is_active;
\n} LinkStatus_t;<\/p>\n LinkStatus_t primary_link, backup_link;<\/p>\n void Communication_Manager(void) {
\n \/\/ \u68c0\u67e5\u4e3b\u94fe\u8def\u72b6\u6001
\n if (HAL_GetTick() – primary_link.last_heartbeat > HEARTBEAT_TIMEOUT) {
\n primary_link.is_active = 0;
\n Switch_to_Backup_Link();
\n } else {
\n primary_link.is_active = 1;
\n }<\/p>\n \/\/ \u5b9a\u671f\u6d4b\u8bd5\u5907\u7528\u94fe\u8def
\n static uint32_t last_test = 0;
\n if (HAL_GetTick() – last_test > LINK_TEST_INTERVAL) {
\n Test_Backup_Link();
\n last_test = HAL_GetTick();
\n }
\n}<\/p>\n void Send_Data_Redundant(uint8_t* data, uint16_t size) {
\n \/\/ \u4e3b\u94fe\u8def\u53d1\u9001
\n if (primary_link.is_active) {
\n Ethernet_Send(data, size);
\n }<\/p>\n \/\/ \u5907\u7528\u94fe\u8def\u540c\u65f6\u53d1\u9001，\u786e\u4fdd\u6570\u636e\u5230\u8fbe
\n if (backup_link.link_quality > QUALITY_THRESHOLD) {
\n WiFi_Send(data, size);
\n }
\n}<\/p>\n 3.3 \u6570\u636e\u6821\u9a8c\u4e0e\u91cd\u4f20\u673a\u5236<\/h4>\n\u6211\u4eec\u91c7\u7528\u591a\u5c42\u6821\u9a8c\u673a\u5236：\u786c\u4ef6\u5c42CRC\u6821\u9a8c\u3001\u534f\u8bae\u5c42\u5e8f\u5217\u53f7\u68c0\u67e5\u3001\u5e94\u7528\u5c42\u4e1a\u52a1\u903b\u8f91\u9a8c\u8bc1\u3002\u91cd\u8981\u6570\u636e\u9700\u8981\u63a5\u6536\u65b9\u786e\u8ba4，\u8d85\u65f6\u672a\u786e\u8ba4\u5219\u81ea\u52a8\u91cd\u4f20\u3002<\/p>\n \u5bf9\u4e8e\u4ea4\u901a\u63a7\u5236\u6307\u4ee4，\u6211\u4eec\u5b9e\u65bd\u4e09\u6b21\u63e1\u624b\u534f\u8bae：\u53d1\u9001\u6307\u4ee4\u2192\u6536\u5230\u786e\u8ba4\u2192\u6267\u884c\u786e\u8ba4\u3002\u53ea\u6709\u5b8c\u6210\u6574\u4e2a\u6d41\u7a0b，\u6307\u4ee4\u624d\u88ab\u89c6\u4e3a\u6210\u529f\u6267\u884c，\u9632\u6b62\u56e0\u901a\u4fe1\u5f02\u5e38\u5bfc\u81f4\u63a7\u5236\u72b6\u6001\u4e0d\u4e00\u81f4\u3002<\/p>\n 4. \u8f6f\u4ef6\u770b\u95e8\u72d7\u4e0e\u6545\u969c\u6062\u590d\u673a\u5236<\/h3>\n\u8f6f\u4ef6\u770b\u95e8\u72d7\u662f\u7cfb\u7edf\u7a33\u5b9a\u6027\u7684\u6700\u540e\u9632\u7ebf\u3002\u6211\u4eec\u8bbe\u8ba1\u7684\u591a\u7ea7\u770b\u95e8\u72d7\u4f53\u7cfb\u5305\u62ec\u786c\u4ef6\u770b\u95e8\u72d7\u3001\u4efb\u52a1\u7ea7\u770b\u95e8\u72d7\u548c\u7cfb\u7edf\u7ea7\u5065\u5eb7\u76d1\u6d4b\u3002<\/p>\n 4.1 \u591a\u7ea7\u770b\u95e8\u72d7\u8bbe\u8ba1<\/h4>\n\u786c\u4ef6\u770b\u95e8\u72d7\u7531\u72ec\u7acb\u770b\u95e8\u72d7\u82af\u7247\u5b9e\u73b0，\u5373\u4f7f\u5728\u4e3b\u5904\u7406\u5668\u6b7b\u673a\u65f6\u4e5f\u80fd\u4fdd\u8bc1\u7cfb\u7edf\u590d\u4f4d\u3002\u8f6f\u4ef6\u770b\u95e8\u72d7\u5206\u4e3a\u591a\u4e2a\u5c42\u6b21：\u6bcf\u4e2a\u4efb\u52a1\u7ef4\u62a4\u81ea\u5df1\u7684\u770b\u95e8\u72d7\u8ba1\u6570\u5668，\u4e3b\u76d1\u63a7\u4efb\u52a1\u68c0\u67e5\u6240\u6709\u4efb\u52a1\u72b6\u6001\u3002<\/p>\n \/\/ \u591a\u4efb\u52a1\u770b\u95e8\u72d7\u5b9e\u73b0
\ntypedef struct {
\n uint32_t last_feed;
\n uint32_t timeout;
\n uint8_t is_active;
\n} TaskWatchdog_t;<\/p>\n TaskWatchdog_t task_wdgs[MAX_TASKS];<\/p>\n void Task_Watchdog_Feed(uint8_t task_id) {
\n if (task_id < MAX_TASKS) {
\n task_wdgs[task_id].last_feed = HAL_GetTick();
\n }
\n}<\/p>\n void Watchdog_Monitor_Task(void) {
\n while (1) {
\n for (int i = 0; i < MAX_TASKS; i++) {
\n if (task_wdgs[i].is_active) {
\n if (HAL_GetTick() – task_wdgs[i].last_feed > task_wdgs[i].timeout) {
\n Handle_Task_Hang(i);
\n }
\n }
\n }
\n osDelay(100);
\n }
\n}<\/p>\n \/\/ \u786c\u4ef6\u770b\u95e8\u72d7\u5904\u7406
\nvoid IWDG_Init(void) {
\n hiwdg.Instance = IWDG;
\n hiwdg.Init.Prescaler = IWDG_PRESCALER_256;
\n hiwdg.Init.Reload = 0x0FFF;
\n hiwdg.Init.Window = 0x0FFF;
\n if (HAL_IWDG_Init(&hiwdg) != HAL_OK) {
\n Error_Handler();
\n }
\n}<\/p>\n void Feed_IWDG(void) {
\n HAL_IWDG_Refresh(&hiwdg);
\n}<\/p>\n 4.2 \u7cfb\u7edf\u72b6\u6001\u76d1\u63a7\u4e0e\u81ea\u9002\u5e94\u964d\u7ea7<\/h4>\n\u6211\u4eec\u8bbe\u8ba1\u4e86\u4e00\u5957\u5b8c\u6574\u7684\u7cfb\u7edf\u5065\u5eb7\u76d1\u6d4b\u4f53\u7cfb，\u5b9e\u65f6\u76d1\u63a7CPU\u8d1f\u8f7d\u3001\u5185\u5b58\u4f7f\u7528\u3001\u901a\u4fe1\u8d28\u91cf\u7b49\u5173\u952e\u6307\u6807\u3002\u5f53\u68c0\u6d4b\u5230\u5f02\u5e38\u65f6，\u7cfb\u7edf\u81ea\u52a8\u8fdb\u5165\u964d\u7ea7\u8fd0\u884c\u6a21\u5f0f，\u4fdd\u969c\u57fa\u672c\u529f\u80fd\u4e0d\u53d7\u5f71\u54cd\u3002<\/p>\n \u7cfb\u7edf\u5065\u5eb7\u76d1\u6d4b\u6307\u6807：<\/p>\n \n\u76d1\u6d4b\u6307\u6807\u6b63\u5e38\u8303\u56f4\u5f02\u5e38\u5904\u7406<\/tr>\n \n\n| CPU\u5229\u7528\u7387<\/td>\n | <70%<\/td>\n | \u5173\u95ed\u975e\u6838\u5fc3\u4efb\u52a1<\/td>\n<\/tr>\n | \n| \u5806\u5185\u5b58\u4f7f\u7528<\/td>\n | <80%<\/td>\n | \u5f3a\u5236\u5783\u573e\u56de\u6536<\/td>\n<\/tr>\n | \n| \u901a\u4fe1\u8bef\u7801\u7387<\/td>\n | <10\u207b\u2076<\/td>\n | \u5207\u6362\u5907\u7528\u94fe\u8def<\/td>\n<\/tr>\n | \n| \u6e29\u5ea6<\/td>\n | -40\u2103~85\u2103<\/td>\n | \u964d\u4f4e\u8fd0\u884c\u9891\u7387<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u91cd\u8981\u63d0\u793a：\u964d\u7ea7\u7b56\u7565\u9700\u8981\u9884\u5148\u8bbe\u8ba1\u5e76\u5728\u5404\u79cd\u5f02\u5e38\u60c5\u51b5\u4e0b\u6d4b\u8bd5\u3002\u7cfb\u7edf\u5e94\u8be5\u80fd\u591f\u5728\u6700\u4f4e\u914d\u7f6e\u4e0b\u7ef4\u6301\u57fa\u672c\u4ea4\u901a\u6307\u6325\u529f\u80fd，\u5373\u4f7f\u5728\u4e0e\u63a7\u5236\u4e2d\u5fc3\u5931\u53bb\u8054\u7cfb\u7684\u60c5\u51b5\u4e0b\u4e5f\u80fd\u81ea\u4e3b\u8fd0\u884c\u3002<\/p>\n 4.3 \u6545\u969c\u8bb0\u5f55\u4e0e\u8bca\u65ad<\/h4>\n\u7cfb\u7edf\u914d\u5907\u5b8c\u5584\u7684\u6545\u969c\u8bb0\u5f55\u673a\u5236，\u6240\u6709\u5f02\u5e38\u4e8b\u4ef6\u90fd\u88ab\u8be6\u7ec6\u8bb0\u5f55，\u5305\u62ec\u65f6\u95f4\u3001\u7c7b\u578b\u3001\u524d\u540e\u7cfb\u7edf\u72b6\u6001\u7b49\u4fe1\u606f\u3002\u8fd9\u4e9b\u8bb0\u5f55\u5e2e\u52a9\u5de5\u7a0b\u5e08\u5206\u6790\u6545\u969c\u539f\u56e0，\u6301\u7eed\u6539\u8fdb\u7cfb\u7edf\u8bbe\u8ba1\u3002<\/p>\n \u6211\u4eec\u91c7\u7528\u5faa\u73af\u7f13\u51b2\u533a\u5b58\u50a8\u6545\u969c\u8bb0\u5f55，\u786e\u4fdd\u6700\u65b0\u7684\u8bb0\u5f55\u4e0d\u4f1a\u56e0\u4e3a\u7f13\u51b2\u533a\u6ee1\u800c\u4e22\u5931\u3002\u8bb0\u5f55\u5185\u5bb9\u5305\u62ec\u7cfb\u7edf\u72b6\u6001\u5feb\u7167\u3001\u73af\u5883\u53c2\u6570\u548c\u5173\u952e\u53d8\u91cf\u503c，\u4e3a\u4e8b\u540e\u5206\u6790\u63d0\u4f9b\u5145\u5206\u4fe1\u606f\u3002<\/p>\n \/\/ \u6545\u969c\u8bb0\u5f55\u5b9e\u73b0
\n#define FAULT_LOG_SIZE 128<\/p>\n typedef struct {
\n uint32_t timestamp;
\n uint8_t fault_type;
\n uint16_t fault_code;
\n uint32_t system_state;
\n uint16_t env_data[4];
\n} FaultLog_t;<\/p>\n FaultLog_t fault_log[FAULT_LOG_SIZE];
\nuint16_t log_index = 0;<\/p>\n void Log_Fault(uint8_t type, uint16_t code, uint32_t state) {
\n fault_log[log_index].timestamp = HAL_GetTick();
\n fault_log[log_index].fault_type = type;
\n fault_log[log_index].fault_code = code;
\n fault_log[log_index].system_state = state;<\/p>\n \/\/ \u8bb0\u5f55\u73af\u5883\u6570\u636e
\n fault_log[log_index].env_data[0] = Read_Temperature();
\n fault_log[log_index].env_data[1] = Read_Voltage();
\n fault_log[log_index].env_data[2] = Read_EMI_Level();
\n fault_log[log_index].env_data[3] = Get_Link_Quality();<\/p>\n log_index = (log_index + 1) % FAULT_LOG_SIZE;
\n}<\/p>\n \/\/ \u6545\u969c\u8bca\u65ad\u4e0e\u5206\u6790
\nvoid Analyze_Faults(void) {
\n \/\/ \u7edf\u8ba1\u5404\u7c7b\u6545\u969c\u53d1\u751f\u9891\u7387
\n uint16_t fault_count[256] = {0};
\n for (int i = 0; i < FAULT_LOG_SIZE; i++) {
\n if (fault_log[i].timestamp != 0) {
\n fault_count[fault_log[i].fault_type]++;
\n }
\n }<\/p>\n \/\/ \u6839\u636e\u6545\u969c\u6a21\u5f0f\u8c03\u6574\u7cfb\u7edf\u53c2\u6570
\n if (fault_count[FAULT_EMI] > EMI_FAULT_THRESHOLD) {
\n Increase_Filter_Strength();
\n Enable_Additional_Shielding();
\n }<\/p>\n if (fault_count[FAULT_COMM] > COMM_FAULT_THRESHOLD) {
\n Adjust_Communication_Parameters();
\n Increase_Redundancy_Level();
\n }
\n}<\/p>\n \u5728\u5b9e\u9645\u90e8\u7f72\u4e2d，\u6211\u4eec\u53d1\u73b0\u6700\u5e38\u51fa\u73b0\u7684\u7a33\u5b9a\u6027\u95ee\u9898\u5f80\u5f80\u4e0d\u662f\u5355\u4e00\u56e0\u7d20\u9020\u6210\u7684，\u800c\u662f\u591a\u4e2a\u5c0f\u95ee\u9898\u53e0\u52a0\u7684\u7ed3\u679c\u3002\u56e0\u6b64，\u6211\u4eec\u5efa\u7acb\u4e86\u5b9a\u671f\u7cfb\u7edf\u81ea\u68c0\u5236\u5ea6，\u6bcf\u9694\u4e00\u6bb5\u65f6\u95f4\u5168\u9762\u68c0\u67e5\u7cfb\u7edf\u72b6\u6001，\u9884\u9632\u6f5c\u5728\u6545\u969c\u3002<\/p>\n \u901a\u8fc7\u4e0a\u8ff0\u591a\u5c42\u6b21\u7684\u6297\u5e72\u6270\u8bbe\u8ba1\u548c\u7a33\u5b9a\u6027\u4fdd\u969c\u63aa\u65bd，\u667a\u80fd\u4ea4\u901a\u4fe1\u53f7\u7cfb\u7edf\u80fd\u591f\u5728\u590d\u6742\u7684\u57ce\u5e02\u7535\u78c1\u73af\u5883\u4e2d\u53ef\u9760\u8fd0\u884c\u3002\u8fd9\u4e9b\u7ecf\u9a8c\u6765\u81ea\u4e8e\u591a\u4e2a\u5b9e\u9645\u9879\u76ee\u7684\u79ef\u7d2f，\u6bcf\u4e00\u6761\u5efa\u8bae\u90fd\u7ecf\u8fc7\u73b0\u573a\u9a8c\u8bc1，\u5e0c\u671b\u80fd\u591f\u5e2e\u52a9\u5de5\u7a0b\u5e08\u907f\u5f00\u90a3\u4e9b\u9690\u5f62\u7684\u7a33\u5b9a\u6027\u9677\u9631\u3002<\/p>\n","protected":false},"excerpt":{"rendered":" \u667a\u80fd\u4ea4\u901a\u4fe1\u53f7\u7cfb\u7edf\u7684\u9690\u5f62\u6311\u6218：STM32\u5f00\u53d1\u4e2d\u7684\u7a33\u5b9a\u6027\u9677\u9631\u4e0e\u6297\u5e72\u6270\u8bbe\u8ba1
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