去除错误逻辑

include/serial_AT.hpp

@@ -3,3 +3,5 @@
 #include "serial_port.h"
 
 void init_serial_at(const std::string& device, int baudrate);
+
+extern std::string IMEI;

src/serial_AT.cpp

@@ -1,78 +1,57 @@
 #include <algorithm>
 #include <chrono>
 #include <mutex>
+#include <sstream>
 #include <thread>
 
-#include "serail_AT.hpp"
+#include "serial.hpp"
 
 // ================== 全局 IMEI ==================
-std::string IMEI = "";  // 一般 15 位
+std::string IMEI;  // 一般 15 位
 
 // ================== AT 任务结构 ==================
 struct AtTask
 {
     std::string cmd;
-    int interval;     // 周期，秒；0 表示一次性任务
+    int max_retries;
-    int max_retries;  // -1 表示无限次
     int sent_count;
     std::chrono::steady_clock::time_point last_sent;
 };
 
 static std::unique_ptr<SerialPort> serial_at;
 static std::thread serial_at_sender;
-
 static std::mutex at_tasks_mutex;
 
-// ================== AT 任务列表 ==================
+// 只保留一个任务：AT+GSN
-static std::vector<AtTask> at_tasks = {
+static std::vector<AtTask> at_tasks = {{"AT+GSN", 3, 0, {}}};
-    {"AT+GSN", 0, 3, 0, {}}  // 查询 IMEI，最多重试 3 次
-};
 
 // ================== 发送线程 ==================
 static void serial_at_send_loop()
 {
     while (true)
     {
-        if (serial_at && serial_at->is_open())
+        if (!serial_at || !serial_at->is_open())
         {
+            std::this_thread::sleep_for(std::chrono::seconds(1));
+            continue;
+        }
+
         auto now = std::chrono::steady_clock::now();
         std::lock_guard<std::mutex> lock(at_tasks_mutex);
 
         for (auto it = at_tasks.begin(); it != at_tasks.end();)
         {
             auto& task = *it;
-                bool should_send = false;
 
-                if (task.interval > 0)
+            if (task.sent_count >= task.max_retries)
             {
-                    if (task.last_sent.time_since_epoch().count() == 0 ||
+                // 达到最大重试次数，直接移除
-                        std::chrono::duration_cast<std::chrono::seconds>(now - task.last_sent).count() >= task.interval)
-                    {
-                        should_send = true;
-                    }
-                }
-                else
-                {
-                    if ((task.max_retries < 0 || task.sent_count < task.max_retries) &&
-                        (task.last_sent.time_since_epoch().count() == 0 ||
-                         std::chrono::duration_cast<std::chrono::seconds>(now - task.last_sent).count() >= 5))
-                    {
-                        should_send = true;
-                    }
-                    else if (task.max_retries > 0 && task.sent_count >= task.max_retries)
-                    {
-                        LOG_ERROR("[serial_at] AT+GSN reached max retries");
-
-                        // IMEI 获取失败，仍继续初始化
-                        init_tcp_client_tbox_router(TboxConfigManager::instance().getPlatformIp(),
-                                                    TboxConfigManager::instance().getPlatformPort());
-
                 it = at_tasks.erase(it);
                 continue;
             }
-                }
 
-                if (should_send)
+            if (task.last_sent.time_since_epoch().count() == 0 ||
+                std::chrono::duration_cast<std::chrono::seconds>(now - task.last_sent).count() >= 5)
             {
                 serial_at->send_data(task.cmd + "\r\n");
                 task.sent_count++;
@@ -81,7 +60,6 @@ static void serial_at_send_loop()
 
             ++it;
         }
-        }
 
         std::this_thread::sleep_for(std::chrono::seconds(1));
     }
@@ -90,31 +68,24 @@ static void serial_at_send_loop()
 // ================== 接收处理 ==================
 static void handle_serial_at_data(const std::string& data)
 {
-    // 拆行处理，避免粘包
     std::istringstream iss(data);
     std::string line;
 
     while (std::getline(iss, line))
     {
-        // 去空白
+        // trim
         line.erase(0, line.find_first_not_of(" \t\r\n"));
         line.erase(line.find_last_not_of(" \t\r\n") + 1);
 
-        // IMEI 通常是 15 位纯数字
+        // IMEI：14~17 位纯数字（不同模组略有差异）
         if (line.size() >= 14 && line.size() <= 17 && std::all_of(line.begin(), line.end(), ::isdigit))
         {
             IMEI = line;
+            LOG_INFO("[serial_at] IMEI = " + IMEI);
 
-            LOG_INFO("[serial_at] Extracted IMEI = " + IMEI);
+            // 成功后清空任务，不再发送 AT
-
-            init_tcp_client_tbox_router(TboxConfigManager::instance().getPlatformIp(),
-                                        TboxConfigManager::instance().getPlatformPort());
-
-            // 移除 AT+GSN 任务
             std::lock_guard<std::mutex> lock(at_tasks_mutex);
-            at_tasks.erase(std::remove_if(at_tasks.begin(), at_tasks.end(),
+            at_tasks.clear();
-                                          [](const AtTask& task) { return task.cmd == "AT+GSN"; }),
-                           at_tasks.end());
             return;
         }
     }