diff --git a/2_1banben/app.py b/2_1banben/app.py
index 8632f14..270028f 100644
--- a/2_1banben/app.py
+++ b/2_1banben/app.py
@@ -109,7 +109,29 @@ def auto_monitor_job(app):
                         device.current_value = item.get('value')
                         device.latest_time = item.get('target_time')
                         device.check_time = current_time
-                        device.json_data = json.dumps(item.get('raw_json', {}), ensure_ascii=False)
+
+                        # =========== ✅ 核心修复开始：防止丢失 bound_iccid ===========
+
+                        # 1. 准备容器：先读取数据库里现有的 JSON 数据
+                        old_json = {}
+                        try:
+                            if device.json_data:
+                                old_json = json.loads(device.json_data)
+                        except Exception:
+                            old_json = {}
+
+                        # 2. 获取爬虫新数据
+                        new_json = item.get('raw_json', {})
+
+                        # 3. 合并数据：只更新新爬取到的字段，保留 old_json 里的 bound_iccid
+                        if isinstance(new_json, dict):
+                            old_json.update(new_json)
+
+                        # 4. 存回数据库
+                        device.json_data = json.dumps(old_json, ensure_ascii=False)
+
+                        # =========== ✅ 核心修复结束 ===========
+
                         device.offset = calculate_offset(item.get('target_time'))
 
                         db.session.add(DeviceHistory(
@@ -125,28 +147,8 @@ def auto_monitor_job(app):
                     print("⚠️ [定时任务-爬虫] 未获取到数据")
             except Exception as e:
                 print(f"❌ [定时任务-爬虫] 异常: {e}")
-
-        # --- 任务 B: IoT 同步 ---
-        if sync_iot_data_service:
-            try:
-                # 1. 获取数据
-                iot_list = sync_iot_data_service()
-                # 2. 保存入库 (复用 api.py 中的逻辑)
-                count_iot, err = save_iot_cards_to_db(iot_list)
-                if err:
-                    print(f"❌ [定时任务-IoT] 错误: {err}")
-                else:
-                    print(f"✅ [定时任务-IoT] 更新 {count_iot} 张")
-            except Exception as e:
-                print(f"❌ [定时任务-IoT] 异常: {e}")
-
-        # 统一提交事务
-        try:
-            db.session.commit()
-            print("💾 [定时任务] 数据库事务提交完成")
-        except Exception as e:
-            db.session.rollback()
-            print(f"❌ [定时任务] 提交失败: {e}")
+                import traceback
+                traceback.print_exc()
 
 
 # ==============================================================================